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  • Articles  (1,914)
  • Humans  (1,574)
  • Mice
  • 1980-1984  (1,914)
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  • Articles  (1,914)
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  • 1
    Electronic Resource
    Electronic Resource
    Effects of pre- and post-irradiation glucan treatment on pluripotent stem cells, granulocyte, macrophage and erythroid progenitor cells, and hemopoietic stromal cells (1984)
    Springer
    Cellular and molecular life sciences 40 (1984), S. 1240-1244 
    Details
    ISSN: 1420-9071
    Keywords: Mice ; glucan treatment ; Co60-irradiation ; stem cells, pluripotent ; granulocytes ; macrophages ; erythroid progenitor cells ; hemopoietic stomal cells ; hemopoiesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Glucan, a beta-1, 3 polyglucose, was administered to mice either 1 h before or 1 h after a 650 rad exposure to cobalt-60 radiation. Compared to radiation controls, glucan-treated mice consistantly exhibited a more rapid recovery of pluripotent stem cells and committed granulocyte, macrophage, and erythroid progenitor cells. This may partially explain the mechanism by which glucan also enhances survival in otherwise lethally irradiated mice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946654
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  • 2
    Electronic Resource
    Electronic Resource
    Metabolites of vitamin D in normal and X-linked hypophosphatemic mice (1984)
    Springer
    Calcified tissue international 36 (1984), S. 662-667 
    Details
    ISSN: 1432-0827
    Keywords: Vitamin D ; Hyp ; X-linked hypophosphatemia ; Metabolic bone disease ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Hyp mice are a model for human X-linked hypophosphatemia (vitamin D-resistant rickets.) To determine whether an abnormality of vitamin D metabolism exists in this disease, the profiles of the metabolites of vitamin D were determined in normal andHyp mouse plasma.Hyp and normal mice were fed a vitamin D-deficient diet and received 1,23H-vitamin D3 at 16 Ci/mmol by stomach tube at 5 ng/g body weight (0.21 µCi/g b.w.) on alternate days for 14 days. The dose of vitamin D given maintained near normal plasma 25-OH-vitamin D. Thus the mice were in a vitamin D-replete state with all metabolite pools labeled with3H. Plasma was collected from 4 normal and 4Hyp mice. The plasma was extracted, and the extracts were chromatographed separately for each mouse on an LH-20 column. Each major peak of radioactivity was rechromatographed using high performance liquid chromatography on a Zorbax-Sil column using solvent systems known to resolve several vitamin D metabolites. Twenty-one radioactive peaks were identified. The disintegrations per minute of3H in each peak were quantified and converted to plasma concentration using the known specific activity of the administered vitamin D. The 25-OH-vitamin D accounted for 55% of the circulating radioactivity, and 24,25-(OH)2-vitamin D accounted for 22%. The plasma levels of 24,25-(OH)2-vitamin D were similar to levels previously reported by us using protein binding assays. No peaks of radioactivity were missing in the plasma extracts of theHyp mice. Also there was no evidence that plasma 24,25-(OH)2-vitamin D was elevated in theHyp mice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02405387
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  • 3
    Electronic Resource
    Electronic Resource
    A biometrical genetic analysis of ethanol response in selectively bred Long-Sleep and Short-Sleep mice (1984)
    Springer
    Behavior genetics 14 (1984), S. 1-19 
    Details
    ISSN: 1573-3297
    Keywords: Mice ; alcohol ; selective breeding ; pharmacogenetics ; biometrical genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract A classical Mendelian cross was derived from Long-Sleep (LS) and Short-Sleep (SS) mice, lines selectively bred for differences in response to hypnotic doses of ethanol (ETOH). Biometrical genetic procedures applied to the selection phenotype, namely, duration of the ETOH-induced loss of the righting reflex, suggest that a simple additive genetic system controls this depressant response. Sex differences were present in the Mendelian cross generations that had the longest duration responses. An estimate of the number of loci differentiated by the selection was nine. Blood ethanol levels at the time of regaining the righting reflex in the seven genotypes of the Mendelian cross showed that the selection operated solely by changing tissue sensitivity to ethanol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01066065
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of hydrocortisone on the phenotypic expression and inheritance of the Fused gene in mice (1983)
    Springer
    Theoretical and applied genetics 64 (1983), S. 275-281 
    Details
    ISSN: 1432-2242
    Keywords: Fused gene ; Mice ; Hydrocortisone ; Gene inactivation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary This study was undertaken to examine the effects of hydrocortisone injected into male mice on the phenotypic expression and inheritance of the Fused (Fu) gene in their offspring. Data were obtained indicating that there is a hydrocortisone-susceptible period during spermatogenesis. Hydrocortisone injections of males during this period resulted in a statistically significant decrease in the proportion of phenotypically Fu offspring. Genetic analysis with the use of the closely linked recessive marker tufted (tf) demonstrated that the deficit of phenotypically Fu individuals among offspring is not caused by the differential death of gametes, zygotes or embryos. According to genetic data, this deficit is due to a decrease in the penetrance of the Fu gene and partly to its inherited inactivation. The possible mechanisms of the observed phenomenon are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274161
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  • 5
    Electronic Resource
    Electronic Resource
    Direct and correlated responses to selection for weaning weight, post-weaning weight gain and six-week weight in mice (1984)
    Springer
    Theoretical and applied genetics 67 (1984), S. 113-122 
    Details
    ISSN: 1432-2242
    Keywords: Mice ; Selection ; Growth ; Genetic correlation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Four lines of mice were formed from a common base population and selected for 37 generations for either increased 3-week weight (weaning weight), 6-week weight, 3–6 week gain, or maintained as a randomly bred control line. Realised heritability estimates for short-term (long-term) responses were 0.33±0.20 (0.07±0.10), 0.46±0.14 (0.26±0.09), 0.36±0.14 (0.24±0.11) for 3-week weight, 6-week weight and 3–6 week gain, respectively. Realised genetic correlations estimated from short-term (long-term) responses were 0.23±0.08 (0.35±0.10) between 3-week weight and 3–6 week gain; 0.82±0.04 (0.58±0.08) between 3-week weight and 6-week weight; and 0.81±0.04 (0.97±0.04) between 3–6 week gain and 6-week weight. The genetic correlation between 3-week weight and 6-week weight was asymmetric with a greater correlated response for 3-week weight when selecting for 6-week weight (1.06) than vice versa (0.63).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00317015
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  • 6
    Electronic Resource
    Electronic Resource
    Male and female contributions to heterosis in lifetime performance of mice (1984)
    Springer
    Theoretical and applied genetics 67 (1984), S. 479-484 
    Details
    ISSN: 1432-2242
    Keywords: Heterosis ; Lifetime performance ; Mice ; Male and female ; Mate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Six straightbred lines of mice, some of their F1 crosses and a synthetic line were used to evaluate male and female contributions to heterosis in lifetime performance measured on females. Females from each straightbred line or F1 crosses were pair-mated randomly at day 42 with either a male of the corresponding genetic group or from a synthetic line, and pairs were maintained for 155 days (lifetime). Each mother was allowed to rear all young born alive until day 18 when the young were discarded. Data were analyzed using a model in which the group mean of lifetime performance was expressed as the sum of (additive direct) genetic and environmental effects for each of the male and female genetic groups used for mating. Comparison of group means for lifetime performance revealed that estimates of F1 heterosis due to male and female averaged 10 and 9% for number of parturitions during lifetime, 7 and 28% for total number of young born alive, 6 and 31% for total body weight of young born alive, 8 and 33% for total number of young raised to day 18, 9 and 43% for total body weight of young raised to weaning, and 8 and 8% for days from first mating to last parturition. The male's contribution to heterosis in lifetime performance was smaller than female's contribution for productive traits (total number of young born alive and at day 18, and total body weight of young born alive and at day 18), and was nearly equal in reproductive traits (number of parturitions during lifetime and days from first mating to last parturition).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264889
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  • 7
    Electronic Resource
    Electronic Resource
    Genetic interpretation and analysis of diallel crosses with animals (1983)
    Springer
    Theoretical and applied genetics 65 (1983), S. 17-23 
    Details
    ISSN: 1432-2242
    Keywords: Diallel cross ; Maternal effects ; Heterosis ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A genetic framework was developed for the interpretation of statistical parameters estimated from a diallel experiment among a fixed set of lines. These included average direct genetic, average maternal genetic, general combining ability, reciprocal, and line and specific direct and maternal heterotic effects. The genetic model is based on direct and maternal additive and dominance genetic effects as would be expected in animal species. The model assumes that dominance is the underlying basis of heterosis. As an example, litter size at birth was analyzed from a 5 × 5 diallel cross with mice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276256
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  • 8
    Electronic Resource
    Electronic Resource
    Influence of early pregnancy on reproductive rate in lines of mice selected for litter size (1980)
    Springer
    Theoretical and applied genetics 57 (1980), S. 209-220 
    Details
    ISSN: 1432-2242
    Keywords: Mice ; Early puberty ; Litter size ; Selection ; Reproductive rate ; Pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The influence of male-induced early puberty on female reproductive rate was determined in three lines of mice differing in litter size and body weight. The lines originated from a single base population and had undergone 20 generations of selection for the following criteria: large litter size at birth (L+), large litter size and small 6-week body weight (L+W−), or small litter size and large 6-week body weight (L−W+). Females were paired with a mature intact male of the same line at 3, 5 or 7 weeks of age. Mean mating age, averaged over lines, was 26.5 ± .3, 38.3 ± .3 and 52.7 ± .3 days. Exposure to a mature male accelerated female sexual maturation in each line. When contrasted with their sibs mated at a later age, early-pregnant females from each line exhibited a decline in one or more component of reproductive performance, suggesting that the physiological state of the very young female was not optimum for normal pregnancy. In comparisons of early and later mating ages, all three lines showed a decreased littering rate at first mating, number born alive, and individual birth weight of progeny adjusted for litter size; L+ and L+W− mice showed an increased perinatal mortality rate; L+ and L−W+ had a reduction in litter size at birth. When the L+, L+W− and L−W+ lines were compared with an unselected strain and a line selected for high postweaning gain in similar experiments, a genotype by environment interaction was apparent since all lines did not respond in a similar manner to early mating. The line ranking for litter size at birth for each age at male-exposure was L+〉L+W−〉L−W+, despite the significant line by age interaction. When litter size was adjusted by covariance for body weight at mating, the significant effects of age at male-exposure and line by age interaction were eliminated. All fertile females were remated after they had weaned their first litter to obtain information on litter size in parity two. Line differences in litter size at birth and number born alive were uniform across parities. An age by parity interaction was evident since the decreased fecundity at younger ages of male exposure in the L+ and L−W+ litters of parity one was not evident in parity two. Litter feed efficiency during first parity gestation was defined as litter birth weight divided by either cumulative feed intake of the dam from mating to parturition (GEI) or cumulative feed intake from weaning to parturition (GEII). The ranking of lines for GEI and GEH was L+〉 L+W−〉L−W+, but when feed efficiency was adjusted for littering rate, L+W− and L−W+ were not significantly different. With regard to age at mating, the ranking for GEI (7 wk 〉 5 wk 〉 3 wk) was reversed from GEII (3 wk 〉5 wk 〉 7 wk) and these significant differences were maintained after adjustment for littering rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264673
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  • 9
    Electronic Resource
    Electronic Resource
    Selection for efficiency of feed utilization in growing mice (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 129-137 
    Details
    ISSN: 1432-2242
    Keywords: Selection ; Mice ; Feeding Efficiency ; Correlation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Selection was practised for improved feed efficiency (gain/feed intake) of mice on two alternative feeding regimes. In one set of lines animals were fed ad libitum, in the other set they were individually fed a fixed amount of feed (about 10% below the control ad libitum intake) which was not changed over generations. For each treatment, a pair of replicate lines (E) were selected on efficiency from 3–5 weeks of age for 8 generations and another pair (L) from 5–7 weeks for 7 generations. A control line was maintained for both E and L lines. In terminal generations mice from each line were tested on each feeding regime, and carcasses of ad libitum fed mice were analysed. The realized heritability (within families) for efficiency averaged 13%, without much variation over treatments. In the E lines efficiency increased by about 18% of the control mean and in the L lines by about 60%, although absolute changes were small, and responses were similar on the two feeding regimes. Weights at the start of test decreased in the E lines and increased in the L lines; weights at the end of test increased in both. When tested on the alternative regimes, no interactions were detected for live weights, weight gains or efficiency; selection under fixed intake led to the same increase in appetite as did that under ad libitum. There were no interactions for carcass composition. Selection for efficiency led to an increase in fatness on both selection regimes and both weight ranges.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264964
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  • 10
    Electronic Resource
    Electronic Resource
    Correlated responses of growth traits to selection for high and low plasma alkaline phosphatase in mice (1982)
    Springer
    Theoretical and applied genetics 62 (1982), S. 281-287 
    Details
    ISSN: 1432-2242
    Keywords: Growth ; Alkaline phosphatase ; Selection ; Correlated responses ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effectiveness of two way selection for plasma alkaline phosphatase (ALP) was investigated in order to determine its influences on growth traits through thirteen generations. The responses of the two lines selected for high (HP) and low (LP) ALP at 45 days of age were compared to that of the mice selected for large (L) and small (SM) body size. The selection responses of plasma ALP were very effective for both HP and LP lines, with average responses per generation calculated from linear regressions of 0.227±0.037 and −0.088±0.022 respectively. The final levels of ALP in HP and LP were 5.54±0.71 and 1.27±0.20 in the thirtheenth generation, while the SM, L and base population had levels of 3.49±0.08, 0.86±0.55 and 2.77±0.56 respectively. The body weight at 45 days of age in LP (31.4±1.4 g) as a correlated response was significantly higher than HP (23.4±1.8 g) at generation 10. The correlated response of milk yield, measured by weight gain up to 12 days of age, was significantly greater in the LP line than in HP, but the correlated response of gains after weaning was not so different as the response of milk yield. The response of litter size and weight in LP showed significant higher levels than that of HP, but pups' birth weight did not differ between LP and HP. It is suggested that the correlated response of milk yield contributed more to the divergence of body size between HP and LP than the gain after weaning. Realized heritabilities of ALP were 0.335±0.059 (HP) and 0.279±0.051 (LP). Realized genetic correlations between ALP and 45 days' body weight were −0.27±0.13 (HP with SM) and −0.52±0.19 (LP with L). Realized genetic correlations between ALP and milk yield were −0.95±0.03 (HP) and −0.37±0.29 (LP). Correlations between ALP and postweaning gains were fairly low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276252
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  • 11
    Electronic Resource
    Electronic Resource
    Direct and correlated responses to selection for post-weaning weight gain on ad libitum or restricted feeding in mice (1982)
    Springer
    Theoretical and applied genetics 63 (1982), S. 145-150 
    Details
    ISSN: 1432-2242
    Keywords: Mice ; Selection ; Growth rate ; ad libitum feeding ; Restricted feeding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Selection for post-weaning weight gain in mice from 21 to 42 days, on either a full or restricted feeding level during this period was carried out for seven generations. Control lines were maintained for each feeding level. The rate of selection response was higher on full feeding due to a higher heritability and a larger phenotypic variance. Realised heritabilities of 0.29±0.05 and 0.19±0.04 for selection on full and restricted feeding respectively, were in close agreement with base population estimates. Selection on full feeding led to positive correlated responses in 21 day weight, 42 day weight, food intake and efficiency between 21 and 42 days, and 42 day tail length, but with little change in reproductive performance. Correlated responses to selection on restricted feeding were reduced 21 day weight, but an increase in 42 day weight and increased efficiency from 21 to 42 days. However, overall reproductive performance fell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303697
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  • 12
    Electronic Resource
    Electronic Resource
    Flow cytometric analysis of mouse hepatocyte ploidy (1984)
    Springer
    Cell & tissue research 238 (1984), S. 643-647 
    Details
    ISSN: 1432-0878
    Keywords: Binucleate cells ; Flow cytometry ; Hepatocytes ; Polyploidy pattern ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Preparative and mathematical procedures are presented for the investigation of the ploidy pattern of liver cells. The DNA content of enzymatically-isolated liver cells and of nuclei was measured by flow cytometry. The true DNA content could not be measured directly due to superposition of statistical coincidences (demanding “first mode correction”) and incomplete separation of the nuclei in binucleate hepatocytes (demanding “second mode correction”). The statistical coincidences (caused by simultaneous measurement of two or more particles or subsequent reaggregation of particles) were corrected by splitting the “unnatural” i.e., aneuploid DNA content, and classifying it with the normal ploidy classes. In addition, the higher normal ploidy classes were reduced by the proportion of the measured coincidences in favour of the lower ones. The second mode correction applied to nuclear distributions only. It is a probability calculation based on counting nuclear pairs on microscope slides, and resulted in a 10% increase of diploid nuclei and a larger standard deviation between the age groups. 8c and 16c values were reduced. The tetraploid values were unchanged.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219883
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  • 13
    Electronic Resource
    Electronic Resource
    Unimpaired delayed type hypersensitivity reactions in mice infected withTrypanosoma cruzi strain Y (1980)
    Springer
    Parasitology research 61 (1980), S. 179-185 
    Details
    ISSN: 1432-1955
    Keywords: Trypanosoma cruzi ; Delayed hypersensitivity ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Delayed type hypersensitivity reactions (DTH) to DNFB in C3H (susceptible) and (CBA×C57B1/10)F1 (resistant) mice were not impaired inTrypanosoma cruzi strain Y infections. Mice were infected IP with 100 parasites and sensitized or challenged 11 days after infection at the peak of parasitaemia. DTH reactions were found to be enhanced in C3H infected mice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00925463
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  • 14
    Electronic Resource
    Electronic Resource
    The growth ofHymenolepis microstoma in intact and gonadectomized mice (1980)
    Springer
    Parasitology research 61 (1980), S. 243-247 
    Details
    ISSN: 1432-1955
    Keywords: Hymenolepis microstoma ; Mice ; Orchiectomy ; Ovariectomy ; Growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Gonadectomy or sex of the host had no effect on the mean dry weight ofHymenolepis microstoma examined on day 12 postinfection (p.i.). However, on day 20 p.i. worms from intact or sham-operated male mice were significantly heavier than those recovered from the corresponding groups of female hosts. Orchiectomy of hosts lowered the average weight of these older worms, but ovariectomy had no effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00925515
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  • 15
    Electronic Resource
    Electronic Resource
    Humoral suppression inTrypanosoma cruzi infection in relation to the timing of antigen presentation (1980)
    Springer
    Parasitology research 64 (1980), S. 85-93 
    Details
    ISSN: 1432-1955
    Keywords: Trypanosoma cruzi ; Immunosuppression ; Immunenhancement ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract (CBA×C57 B1/10)F1 mice infected intraperitoneally with 100 parasites ofTrypanosoma cruzi strain Y developed an infection with acute and chronic phases. Humoral suppression to sheep red blood cells was evident in both phases but enhancement of the response was achieved only at the beginning of the infection. A mitogen secreted by the parasite could explain both phenomenons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00927059
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  • 16
    Electronic Resource
    Electronic Resource
    On the uptake of exogenous catecholamines by adrenal chromaffin cells and nerve endings (1981)
    Springer
    Cell & tissue research 221 (1981), S. 371-383 
    Details
    ISSN: 1432-0878
    Keywords: Catecholamines ; Chromaffin cells ; Nerve endings ; Adrenal gland ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Light-microscopic autoradiography has revealed characteristic labelling patterns in adrenal medullary cells following the intravenous administration of different catecholamines. The uptake patterns for [3H] dopa, [3H] dopamine, [3H] noradrenaline and [3H] adrenaline have been compared. In all cases A cells were more active than NA cells and cells situated in the zone nearest the cortex demonstrated a markedly higher rate of uptake than central cells. It was concluded that adjacent chromaffin cells with very similar morphology may differ as much as 50 fold in their capacities to incorporate exogenous amines. The adrenergic nature of the innervation of the vessels of the adrenal cortex and capsule in the mouse was confirmed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00216741
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  • 17
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    Human sleep: its duration and organization depend on its circadian phase (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-12-12
    Description: Two- to threefold variations in sleep length were observed in 12 subjects living on self-selected schedules in an environment free of time cues. The duration of polygraphically recorded sleep episodes was highly correlated with the circadian phase of the body temperature rhythm at bedtime and not with the length of prior wakefulness. Furthermore, the rate of REM (rapid eye movement) sleep accumulation , REM latency, bedtime selection, and self-rated alertness assessments were also correlated with the body temperature rhythm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Czeisler, C A -- Weitzman, E d -- Moore-Ede, M C -- Zimmerman, J C -- Knauer, R S -- AG-00792/AG/NIA NIH HHS/ -- GM-07365/GM/NIGMS NIH HHS/ -- MH-28460/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1980 Dec 12;210(4475):1264-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434029" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Body Temperature ; *Circadian Rhythm ; Humans ; Male ; Middle Aged ; Sleep/*physiology ; Sleep, REM/physiology ; Wakefulness
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 18
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    Amino acid acylation: a mechanism of nitrogen excretion in inborn errors of urea synthesis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-08
    Description: Treatment of a patient deficient in carbamyl phosphate synthetase with benzoate or phenylacetic acid resulted in an increase in urinary nitrogen, which could be accounted for by the respective amino acid acylation product, hippurate or phenylacetylgultamine. Benzoate treatment of four hyperammonemic comatose patients led to clinical improvement and a return of plasma ammonium levels toward normal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brusilow, S -- Tinker, J -- Batshaw, M L -- New York, N.Y. -- Science. 1980 Feb 8;207(4431):659-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243418" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Amino Acid Metabolism, Inborn Errors/*drug therapy ; Amino Acids/blood ; Ammonia/blood ; Benzoates/*therapeutic use ; Carbamoyl-Phosphate Synthase (Ammonia)/*deficiency ; Child ; Female ; Glutamine/metabolism ; Glycine/metabolism ; Hippurates/urine ; Humans ; Infant ; Male ; Nitrogen/blood ; *Ornithine Carbamoyltransferase Deficiency Disease ; Phenylacetates/*therapeutic use ; Phosphotransferases/*deficiency
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 19
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    Whale meat in the Japanese diet (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brownell, R L Jr -- Omura, H -- New York, N.Y. -- Science. 1980 May 30;208(4447):976.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7189604" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; Japan ; Meat/*analysis ; Organomercury Compounds/*analysis ; Whales
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    Attentional factors in the inhibition of a reflex by a visual stimulus (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-11-07
    Description: A brief stimulus presented to various regions of the visual field inhibited the eyeblink elicited by a subsequent tap to the skin between the eyebrows. Subjects were able to switch their attention toward or away from the target area without moving their eyes. In doing so they changed the amount of inhibition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DelPezzo, E M -- Hoffman, H S -- HD 10511-07/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):673-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7433993" target="_blank"〉PubMed〈/a〉
    Keywords: *Attention ; Humans ; Reflex/*physiology ; Visual Fields ; Visual Perception/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    N-acetylglucosamine-6-sulfate sulfatase deficiency reconsidered (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Di Ferrante, N -- New York, N.Y. -- Science. 1980 Oct;210(4468):448.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6776626" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Mucopolysaccharidoses/*enzymology ; Sulfatases/*deficiency/isolation & purification
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  • 22
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    Fetal exposure to narcotics: neonatal sleep as a measure of nervous system disturbance (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-01
    Description: Newborn infants, chronically exposed in utero to low doses of methadone with or without concomitant heroin, display more rapid eye movement sleep and less quiet sleep than control infants, while babies fetally exposed to both opiates and nonopiates have less organization of sleep states. Other perinatal factors, such as birth weight and gestational age, are related more to the amount of fetal drug exposure than to the type.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dinges, D F -- Davis, M M -- Glass, P -- New York, N.Y. -- Science. 1980 Aug 1;209(4456):619-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7190326" target="_blank"〉PubMed〈/a〉
    Keywords: Birth Weight ; Female ; Heroin/*adverse effects ; Heroin Dependence/drug therapy ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases/*chemically induced ; Maternal-Fetal Exchange ; Methadone/*adverse effects/therapeutic use ; Nervous System Diseases/*chemically induced ; Pregnancy ; Sleep/*drug effects ; Substance-Related Disorders
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  • 23
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    L-Ornithine decarboxylase:an essential role in early mammalian embryogenesis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-02
    Description: The highly selective, enzyme-activated, irreversible inhibitor of L-ornithine decarboxylase, DL-alpha-difluoromethylornithine, suppresses the increase in uterine L-ornithine decarboxylase activity associated with early embryogenesis in the mouse and arrests embryonic development at that stage. Contragestational effects were confirmed in the rat and rabbit. An increase in L-ornithine decarboxylase activity that leads to a rapid increase in putrescine concentration appears to be essential during a critical period after implantation for continued mammalian embryonal growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fozard, J R -- Part, M L -- Prakash, N J -- Grove, J -- Schechter, P J -- Sjoerdsma, A -- Koch-Weser, J -- New York, N.Y. -- Science. 1980 May 2;208(4443):505-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6768132" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosylmethionine Decarboxylase/metabolism ; Animals ; Carboxy-Lyases/*physiology ; Eflornithine ; Embryo, Mammalian/drug effects/*physiology ; Female ; Gestational Age ; Mice ; Ornithine/*analogs & derivatives/pharmacology ; Ornithine Decarboxylase/*physiology ; Ornithine Decarboxylase Inhibitors ; Polyamines/metabolism ; Pregnancy ; Rabbits ; Rats ; Uterus/drug effects/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 24
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    Collagen: molecular diversity in the body's protein scaffold (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-21
    Description: Intensive research in the last decade has revealed a wealth of detail on the mechanism of biosynthesis, molecular structure, and covalent cross-linking of collagen. Tissues of higher animals express a family of at least five genetically distinct types of collagen molecule, each apparently tailored for different construction work outside the cell. Within each genetic type of collagen, further chemical heterogeneity is also evident; the variations in hydroxylation, glycosylation, and cross-linking are dependent, for example, on tissue type, age, and hormonal status. The functional significance of collagen's molecular diversity and its control by different cells and tissues are not yet well understood but abnormalities of collagen in many human diseases keep this protein a focal molecule of medical research.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eyre, D R -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1315-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355290" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Calcification, Physiologic ; Cartilage/ultrastructure ; *Collagen/genetics/metabolism ; Epithelium/ultrastructure ; Extracellular Space/ultrastructure ; Humans ; Hydrogen Bonding ; Polymorphism, Genetic ; Protein Biosynthesis ; Protein Conformation ; Vertebrates
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  • 25
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    Doridosine: a new hypotensive N-methylpurine riboside from the nudibranch Anisodoris nobilis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-11
    Description: A new N-methylpurine riboside (doridosine), probably N1-Methylisoguanosine, was isolated from the digestive glands of a nudibranch. Doridosine produces prolonged hypotension and bradycardia in anesthetized rats, decreases the rate and the amplitude of contraction of guinea pig atria in vitro, and causes the heart rate in anesthetized mice to be reduced by 50 percent for many hours after which the animals recover completely.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fuhrman, F A -- Fuhrman, G J -- Kim, Y H -- Pavelka, L A -- Mosher, H S -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):193-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350655" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antihypertensive Agents/*isolation & purification ; Guanosine/*analogs & derivatives/isolation & purification/pharmacology ; Guinea Pigs ; Heart Rate/drug effects ; Mice ; Mollusca/analysis ; Rats
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    Three-dimensional molecular modeling and drug design (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-06-27
    Description: A discussion of drug-receptor theory is used to show that the three-dimensional structure, or shape, of molecules is important for biological activity. The computer-assisted molecular modeling system at Merck is described, and it is shown that this system is useful for generating and storing molecular structures, determining preferred conformation, comparing molecular shapes, and computing molecular properties. Applications of the system to the study of anti-inflammatory drugs, somatostatin-like compounds, and dihydrofolate reductase inhibitors are summarized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gund, P -- Andose, J D -- Rhodes, J B -- Smith, G M -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1425-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6104357" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acids ; Binding Sites ; Computers ; Cyclooxygenase Inhibitors ; Humans ; Indomethacin ; *Models, Molecular ; *Models, Structural ; *Molecular Conformation ; *Pharmaceutical Preparations ; Receptors, Drug/metabolism ; Somatostatin/analogs & derivatives ; Structure-Activity Relationship
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  • 27
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    Survival of mice receiving melanoma transplants is promoted by hydroquinone (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-25
    Description: In BALB/c female mice with melanoma transplants, the incidence of "takes" is decreased and survival is increased by hydroquinone, a melanocytolytic agent. The mechanism of drug action is suggested by via DNA. The significant and high degree of positive response to hydroquinone treatment in vivo is encouraging for the clinical management of melanoma with melanocytolytic agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chavin, W -- Jelonek, E J Jr -- Reed, A H -- Binder, L R -- New York, N.Y. -- Science. 1980 Apr 25;208(4442):408-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Female ; Hydroquinones/metabolism/*therapeutic use ; Melanocytes/metabolism ; Melanoma/*drug therapy ; Mice ; Neoplasm Transplantation ; Neoplasms, Experimental/drug therapy
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    Endogenous potentials generated in the human hippocampal formation and amygdala by infrequent events (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-11-14
    Description: Infrequent, attended, auditory and visual stimuli evoke large potentials in the human limbic system in tasks that usually evoke endogenous potentials at the scalp. The limbic potentials reverse polarity over small distances and correlate with unit discharges recorded by the same electrodes, indicating that they are locally generated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halgren, E -- Squires, N K -- Wilson, C L -- Rohrbaugh, J W -- Babb, T L -- Crandall, P H -- NS02808/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1980 Nov 14;210(4471):803-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434000" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/*physiology ; Auditory Perception/physiology ; Cognition/physiology ; Evoked Potentials ; Hippocampus/*physiology ; Humans ; Membrane Potentials ; Visual Perception/physiology
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  • 29
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    Holographic assessment of microwave hearing (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chou, C K -- Guy, A W -- Foster, K R -- Galambos, R -- Justesen, D R -- New York, N.Y. -- Science. 1980 Sep 5;209(4461):1143-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403877" target="_blank"〉PubMed〈/a〉
    Keywords: *Hearing ; *Holography ; Humans ; *Microwaves
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  • 30
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    Bronchial bifurcations and respiratory mass transport (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-04-04
    Description: A new transport mechanism explains the importance of the shape of bronchial bifurcations in the transfer of gases and particles between the atmosphere and the alveoli. Photographs of flow visualization experiments illustrate the effect in models of bronchial branching. The mechanism provides a means of nondiffusional transport that helps to explain normal respiratory exchange of gases as well as successful ventilation with very low tidal volumes, as in some lung diseases and in the high-frequency panting of dogs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haselton, F R -- Scherer, P W -- New York, N.Y. -- Science. 1980 Apr 4;208(4439):69-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bronchi/*anatomy & histology/physiology ; Humans ; *Respiration ; Tidal Volume
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 31
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    Preserved learning and retention of pattern-analyzing skill in amnesia: dissociation of knowing how and knowing that (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-10-10
    Description: Amnesic patients acquired a mirror-reading skill at a rate equivalent to that of matched control subjects and retained it for at least 3 months. The results indicate that the class of preserved learning skills in amnesia is broader than previously reported. Amnesia seems to spare information that is based on rules or procedures, as contrasted with information that is data-based or declarative--"knowing how rather than "knowing that." The results support the hypothesis that such a distinction is honored by the nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, N J -- Squire, L R -- 1P50 MH 30914/MH/NIMH NIH HHS/ -- MH24600/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 10;210(4466):207-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7414331" target="_blank"〉PubMed〈/a〉
    Keywords: Alcohol Amnestic Disorder/physiopathology ; Amnesia/*physiopathology ; Electroconvulsive Therapy ; *Form Perception ; Humans ; Learning/*physiology ; *Pattern Recognition, Visual ; Reading ; Retention (Psychology)/physiology ; Time Factors
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  • 32
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    Occupational lead exposure: what are the risks? (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, W C -- New York, N.Y. -- Science. 1980 Apr 11;208(4440):129-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361111" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinogens, Environmental ; Epidemiologic Methods ; Humans ; Lead Poisoning/*epidemiology/mortality ; Male ; Occupational Diseases/*chemically induced/epidemiology
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  • 33
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    Flurry over venom (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-01-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):161.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350649" target="_blank"〉PubMed〈/a〉
    Keywords: Arthritis/drug therapy ; Humans ; Multiple Sclerosis/drug therapy ; Snake Venoms/*therapeutic use
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  • 34
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    Identical twins reared apart (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1323-5, 1327-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7188816" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Environment ; Female ; Genetics, Medical ; Humans ; Intelligence ; Male ; Pregnancy ; Twins/*psychology ; Twins, Monozygotic/*psychology
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  • 35
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    Supporting hospice care (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-01-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):160-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6985747" target="_blank"〉PubMed〈/a〉
    Keywords: Hospices/*economics ; Humans ; Insurance, Health ; Medicaid ; Medicare ; United States
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  • 36
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    Photosynthesis of previtamin D3 in human skin and the physiologic consequences (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-10-10
    Description: Photosynthesis of previtamin D3 can occur throughout the epidermis in the dermis when hypopigmented Caucasian skin is exposed to solar ultraviolet radiation. Once previtamin D3 is formed in the skin, it undergoes a temperature-dependent thermal isomerization that takes at least 3 days to complete. The vitamin D-binding protein preferentially translocates the thermal product, vitamin D3, into the circulation. These processes suggest a unique mechanism for the synthesis, storage, and slow, steady release of vitamin D3 from the skin into the circulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holick, M F -- MacLaughlin, J A -- Clark, M B -- Holick, S A -- Potts, J T Jr -- Anderson, R R -- Blank, I H -- Parrish, J A -- Elias, P -- AM25395-01/AM/NIADDK NIH HHS/ -- AM27334-01/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 10;210(4466):203-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251551" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/metabolism ; Cholecalciferol/*biosynthesis ; Cholestadienols/*biosynthesis ; Dose-Response Relationship, Radiation ; Hot Temperature ; Humans ; Isomerism ; Photochemistry ; Rats ; Skin/cytology/*metabolism ; Ultraviolet Rays ; Vitamin D/metabolism ; Vitamin D-Binding Protein
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  • 37
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    Cytostructural localization of a tumor-associated antigen (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-10-10
    Description: Tumor cell membrane glycoproteins may be involved in the induction of tumor immunity or in the escape of tumors from immunologic defense mechanisms. Forty-four benign and malignant breast lesions were examined for the presence of a carbohydrate precursor antigen (T antigen) of the human blood group system MN. T antigen was demonstrated by means of an immunohistochemical technique to detect tissue binding of peanut agglutinin, a plant lectin, with affinity for T antigen. Malignant breast lesions showed a pattern of T antigen expression different from that of benign breast tissues. A possible role for T antigen in the modulation of the immune response to breast carcinoma is suggested.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Howard, D R -- Batsakis, J G -- IR23 CA 28128-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 10;210(4466):201-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6997995" target="_blank"〉PubMed〈/a〉
    Keywords: Antibody Formation ; *Antigens, Neoplasm ; Arachis ; Breast Neoplasms/*immunology/ultrastructure ; Cytoplasm/immunology ; Female ; Glycoproteins/immunology ; Humans ; Immunoenzyme Techniques ; Lectins ; MNSs Blood-Group System ; Plant Lectins
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  • 38
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    Olfactory sensitivity in humans: genetic versus environmental control (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-05-09
    Description: Olfactory sensitivity to acetic acid, isobutyric acid, and 2-sec-butyl-cyclohexanone was tested in 97 adult male twin pairs to determine the extent to which variation in odor perception was genetically determined. Analysis of the data revealed no evidence for heritability of olfactory sensitivity. However, factors significantly associated with odor perception included cigar, pipe, and cigarette smoking; body fatness; alcohol consumption; and diabetes mellitus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hubert, H B -- Fabsitz, R R -- Feinleib, M -- Brown, K S -- New York, N.Y. -- Science. 1980 May 9;208(4444):607-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7189296" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates ; Adult ; Alcohol Drinking ; Butyrates ; Cyclohexanones ; *Environment ; Female ; *Genes ; Humans ; Male ; Middle Aged ; Pregnancy ; Sensory Thresholds ; Skinfold Thickness ; Smell/*physiology ; Smoking ; *Twins ; Twins, Dizygotic ; Twins, Monozygotic
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    Modeling coordination sites in metallobiomolecules (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-11
    Description: Synthetic metal complexes can closely approach the properties of metal ions in proteins and yield useful information concerning biological structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ibers, J A -- Holm, R H -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):223-35.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384796" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Electron Transport ; Humans ; Iron-Sulfur Proteins ; *Metalloproteins ; *Metals ; Molecular Conformation ; Myoglobin ; Oxygen/blood ; Oxyhemoglobins ; Protein Binding ; Protein Conformation
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  • 40
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    High-molecular-weight immunoreactive beta-endorphin in extracts of human placenta is a fragment of immunoglobulin G (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-11
    Description: A high-molecular-weight protein with beta-endorphin- and adrenocorticotropin-immunoreactivities was isolated from extracts of human placenta after several purification steps, including immunoadsorption with a well-characterized antiserum raised to beta-endorphin. This protein was identified as the heavy chain of the human immunoglobulin class IgG1. These results have led to the recognition of homologies in the amino acid sequences of these physiologically unrelated molecules. They also suggest caution in accepting immunological competence as the sole criterion of the chemical identity of a ligand.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Julliard, J H -- Shibasaki, T -- Ling, N -- Guillemin, R -- New York, N.Y. -- Science. 1980 Apr 11;208(4440):183-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6244620" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Electrophoresis, Polyacrylamide Gel ; Endorphins/*analysis ; Female ; Humans ; Immunoglobulin G/*analysis ; Placental Extracts/*analysis ; Pregnancy ; Radioimmunoassay ; beta-Endorphin
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  • 41
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    Allele increasing susceptibility to human breast cancer may be linked to the glutamate-pyruvate transaminase locus (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-25
    Description: The patterns of the occurrence of breast cancer in 11 high-risk families were evaluated by segregation and linkage analysis. These patterns were consistent with the hypothesis that increased susceptibility to breast cancer was inherited as an autosomal dominant allele with high penetrance in women. The postulated susceptibility allele in these families may be chromosomally linked to the glutamate-pyruvate transaminase (E.C. 2.6.1.2, alanine aminotransferase) locus. Confirmation of this linkage in other families would establish the existence of a gene increasing susceptibility to breast cancer. Since there is no association in the general population between a woman's glutamate-pyruvate transaminase genotype and her cancer risk, the glutamate-pyruvate transaminase linkage cannot be used as a screening test for breast cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, M C -- Go, R C -- Elston, R C -- Lynch, H T -- Petrakis, N L -- New York, N.Y. -- Science. 1980 Apr 25;208(4442):406-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367867" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine Transaminase/*genetics ; Alleles ; Breast Neoplasms/*genetics/transmission ; Female ; Genes ; Genetic Linkage ; Humans ; Pedigree ; X Chromosome
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  • 42
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    Testosterone-mediated sexual dimorphism of mitochondria and lysosomes in mouse kidney proximal tubules (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-29
    Description: In kidney proximal tubules of male mice the mitochondria are larger and more electron-lucent, autophagic vacuoles and lysosomes (predominantly myeloid bodies) more numerous and voluminous, and exocytosed intraluminal myeloid bodies more common than in females. Males also have higher kidney activities of mitochondrial cytochrome c oxidase and lysosomal hydrolases, and excrete larger quantities of hydrolases and protein in the urine. Orchiectomy evokes the feminine pattern whereas testosterone administration induces the male pattern. Endogenous testosterone modulates mitochondrial structure and function and enhances the activity of the lysosomal-vacuolar system in proximal tubule cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koenig, H -- Goldstone, A -- Blume, G -- Lu, C Y -- New York, N.Y. -- Science. 1980 Aug 29;209(4460):1023-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403864" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Castration ; Enzymes/urine ; Female ; Kidney/drug effects ; Kidney Tubules, Proximal/*ultrastructure ; Lysosomes/drug effects/enzymology ; Male ; Mice ; Mitochondria/drug effects/enzymology ; Organ Size/drug effects ; Sex Differentiation/*drug effects ; Testosterone/*pharmacology
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  • 43
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    Heart transplants: to pay or not to pay (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knox, R A -- New York, N.Y. -- Science. 1980 Aug 1;209(4456):570-2, 574-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6994226" target="_blank"〉PubMed〈/a〉
    Keywords: Boston ; Cardiac Surgical Procedures/*economics ; *Federal Government ; Government Agencies ; Government Regulation ; *Heart Transplantation ; Hospitals, General ; Humans ; *Patient Selection ; *Resource Allocation ; Transplantation, Homologous ; United States
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  • 44
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    Mass. General: no heart transplants here (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knox, R A -- New York, N.Y. -- Science. 1980 Aug 1;209(4456):574.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6994227" target="_blank"〉PubMed〈/a〉
    Keywords: Boston ; *Heart Transplantation ; Hospital Bed Capacity, 500 and over ; Hospitals, General/*organization & administration ; Humans ; Patient Selection ; *Resource Allocation ; Surgery Department, Hospital/utilization ; Transplantation, Homologous ; Trustees
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  • 45
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    How safe is Bendectin? (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Oct 31;210(4469):518-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423201" target="_blank"〉PubMed〈/a〉
    Keywords: Abnormalities, Drug-Induced/*etiology ; Dicyclomine ; Doxylamine/*adverse effects ; Drug Combinations/adverse effects ; Drug Evaluation ; Female ; Humans ; Jurisprudence ; Pregnancy ; Pyridines/*adverse effects ; Pyridoxine/*adverse effects ; United States ; United States Food and Drug Administration
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  • 46
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    Prenatal diagnosis fo neural tube defects (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Sep 12;209(4462):1216-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6157193" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Therapeutic/standards ; Female ; Genetic Diseases, Inborn ; Government Regulation ; Great Britain ; Humans ; Neural Tube Defects/*diagnosis ; Pregnancy ; *Pregnant Women ; *Prenatal Diagnosis ; Reagent Kits, Diagnostic ; Social Justice ; Spina Bifida Occulta/diagnosis ; United States ; Voluntary Programs ; alpha-Fetoproteins/analysis
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  • 47
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    Dialysis after nearly a decade (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 May 2;208(4443):473-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6988966" target="_blank"〉PubMed〈/a〉
    Keywords: *Federal Government ; Humans ; *Medicare ; Quality of Health Care ; Renal Dialysis/economics/rehabilitation/*trends ; Resource Allocation ; United States
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  • 48
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    NIH shaken by death of research volunteer (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):475-6, 478-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394512" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Anorexia Nervosa ; Female ; *Human Experimentation ; Humans ; *Jurisprudence ; Lithium ; *National Institutes of Health (U.S.) ; *Patient Selection ; *Research ; *Research Subjects ; Sleep ; United States ; Vomiting
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  • 49
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    Dilemma in cancer treatment (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Aug 15;209(4458):792-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6931405" target="_blank"〉PubMed〈/a〉
    Keywords: Bone Neoplasms/*drug therapy ; Drug Therapy, Combination ; Humans ; Lung Neoplasms/diagnosis/*secondary/surgery ; Neoplasm Metastasis ; Osteosarcoma/*drug therapy/surgery ; Prognosis
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  • 50
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    Love Canal: false alarm caused by botched study (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G B -- New York, N.Y. -- Science. 1980 Jun 13;208(4449):1239-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375934" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Aberrations ; Chromosomes/*drug effects ; Drug Industry ; Government Agencies ; Humans ; New York ; Research Design ; Soil Pollutants/*adverse effects ; United States ; Water Pollutants/*adverse effects ; Water Pollutants, Chemical/*adverse effects
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  • 51
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    Tooth induction in chick epithelium: expression of quiescent genes for enamel synthesis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-29
    Description: Intraocular grafts of chick epithelium combined with mouse molar mesenchyme produced a variety of dental structures including perfectly formed crowns with differentiated ameloblasts depositing enamel matrix. The results suggest that the loss of teeth in Aves did not result from a loss of genetic coding for enamel synthesis in the oral epithelium but from an alteration in the tissue interactions requisite for odontogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kollar, E J -- Fisher, C -- New York, N.Y. -- Science. 1980 Feb 29;207(4434):993-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352302" target="_blank"〉PubMed〈/a〉
    Keywords: *Amelogenesis ; Animals ; Chick Embryo/*cytology ; Culture Techniques ; Dental Enamel Proteins/*biosynthesis/genetics ; Embryonic Induction ; Epithelial Cells ; Genes ; Mandible/cytology ; Mesoderm/cytology ; Mice ; *Odontogenesis
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  • 52
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    Role of the spleen in the growth of a murine B cell leukemia (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-04
    Description: A spontaneous B cell leukemia (BCL1) grew progressively in normal BALB/c mice after injection of tumor cells but did not grow in splenectomized recipients. Despite the absence of progressive tumor growth, residual tumor cells with malignant potential were found in the peripheral blood of the splenectomized animals. Splenectomy performed after injection of tumor cells but before the development of marked leukocytosis also prevented progressive tumor growth and death of the host. Thus the spleen appears to be necessary for progressive proliferation of this lymphocytic leukemia early after passage in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kotzin, B L -- Strober, S -- New York, N.Y. -- Science. 1980 Apr 4;208(4439):59-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6965803" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*pathology ; Disease Models, Animal ; Female ; Leukemia, Experimental/etiology/physiopathology ; Leukemia, Lymphoid/*etiology/physiopathology ; Mice ; Mice, Inbred BALB C ; Spleen/*physiology ; Splenectomy
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  • 53
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    Prolongation of islet xenograft survival without continuous immunosuppression (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-11
    Description: The survival of isolated rat islets transplanted into diabetic mice was prolonged markedly by maintaining the rat islets in vitro at 24 degrees C for 7 days before transplantation and administering to the recipients a single injection of antiserum to mouse and rat lymphocytes shortly before transplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lacy, P E -- Davie, J M -- Finke, E H -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):283-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6770465" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/analysis ; Cell Survival ; Cells, Cultured ; Diabetes Mellitus, Experimental/*therapy ; *Immunosuppression ; *Islets of Langerhans Transplantation ; Lymphocytes/immunology ; Male ; Mice ; Mice, Inbred BALB C ; Rats ; Transplantation, Heterologous ; Transplantation, Isogeneic
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  • 54
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    Computers, health care, and medical information science (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-17
    Description: The clinical laboratory is examined as a microcosm of the entire health care delivery system. The introduction of computers into the clinical laboratory raises issues that are difficult to resolve by the methods of information science or medical science applied in isolation. The melding of these two disciplines, together with the contributions of other disciplines, has created a new field of study called medical information science. The emergence of this new discipline and some specific problem-solving approaches used in its application in the clinical laboratory are examined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lincoln, T L -- Korpman, R A -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):257-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6999622" target="_blank"〉PubMed〈/a〉
    Keywords: Clinical Laboratory Techniques/*instrumentation ; Costs and Cost Analysis ; *Delivery of Health Care/economics ; Diagnosis, Computer-Assisted/*methods ; Humans ; Information Systems ; Time Factors
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  • 55
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    Phenacetin safety (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Macklin, A W -- Welch, R M -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):129-30, 132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350647" target="_blank"〉PubMed〈/a〉
    Keywords: Aminopyrine/adverse effects/toxicity ; Animals ; Humans ; Mice ; Mutagens ; Phenacetin/administration & dosage/*adverse effects/toxicity ; Rats
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  • 56
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    Light suppresses melatonin secretion in humans (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-12-12
    Description: Bright artificial light suppressed nocturnal secretion of melatonin in six normal human subjects. Room light of less intensity, which is sufficient to suppress melatonin secretion in other mammals, failed to do so in humans. In contrast to the results of previous experiments in which ordinary room light was used, these findings establish that the human response to light is qualitatively similar to that of other mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewy, A J -- Wehr, T A -- Goodwin, F K -- Newsome, D A -- Markey, S P -- New York, N.Y. -- Science. 1980 Dec 12;210(4475):1267-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434030" target="_blank"〉PubMed〈/a〉
    Keywords: Circadian Rhythm ; Dose-Response Relationship, Radiation ; Female ; Humans ; *Light ; Male ; Melatonin/*secretion ; Pineal Gland/secretion ; Secretory Rate
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  • 57
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    Immunoglobulin gene rearrangement in immature B cells (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-09-19
    Description: Two types of immature B cells, namely fetal liver hybridomas and the leukemic cell line 70Z/3, both of which have cytoplasmic mu chains but no light chains, were examined for DNA rearrangements of their light chain and heavy chain immunoglobulin genes. In the fetal liver hybridomas, which were constructed from fetal liver cells and a tumor cell, no light chain gene rearrangement was observed, whereas in the 70Z/3 cell line a kappa light chain rearrangement probably occurred. The results suggest that, although the lack of light chain synthesis can be due to a lack of gene rearrangement, there may also be transcriptional regulation, which may also be important for the expression of light chain immunoglobulins in immature B cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maki, R -- Kearney, J -- Paige, C -- Tonegawa, S -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1366-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6774416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Genes ; Hybrid Cells/immunology ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Light Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin kappa-Chains/*genetics ; Immunoglobulin mu-Chains/*genetics ; Leukemia, Experimental/*immunology ; Liver/*embryology ; Mice ; Recombination, Genetic ; Transcription, Genetic
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  • 58
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    Hospitals harbor a built-in disease source (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-11-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1980 Nov 14;210(4471):745-6, 748-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7433995" target="_blank"〉PubMed〈/a〉
    Keywords: Air Conditioning ; Cross Infection/*microbiology ; Disease Outbreaks/etiology ; *Disease Reservoirs ; Humans ; Legionella/*growth & development ; Legionnaires' Disease/*transmission ; Ventilation ; Vermont
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    Mapping of heavy chain genes for mouse immunoglobulins M and D (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-19
    Description: A single DNA fragment containing both mu and delta immunoglobulin heavy chain genes has been cloned from normal BALB/c mouse liver DNA with a new lambda phage vector Charon 28. The physical distance between the membrane terminal exon of mu and the first domain of delta is 2466 base pairs, with delta on the 3' side of mu. A single transcript could contain a variable region and both mu and delta constant regions. The dual expression of immunoglobulins M and D on spleen B cells may be due to alternate splicing of this transcript.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, C P -- Tucker, P W -- Mushinski, J F -- Blattner, F R -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1348-53.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6774414" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology ; Chromosome Deletion ; *Genes ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin delta-Chains/*genetics ; Immunoglobulin mu-Chains/*genetics ; Liver/physiology ; Membrane Proteins/genetics ; Mice ; Myeloma Proteins/genetics ; Plasmids ; RNA, Messenger/genetics ; Recombination, Genetic
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    Specific reading disability: differences in contrast sensitivity as a function of spatial frequency (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-01
    Description: Contrast thresholds for sine-wave gratings of spatial frequencies of 2, 4, 12, and 16 cycles per degree were determined for normal and disabled readers at a range of stimulus durations. Normal readers demonstrated monotonically decreasing sensitivity with increasing spatial frequency at exposure durations between 40 and 100 milliseconds. At exposure durations of 150 to 1000 milliseconds, they showed peak sensitivity at 4 cycles per degree. In comparison, disabled readers showed monotonically decreasing sensitivity with increasing spatial frequency at all stimulus durations. The difference in sensitivity pattern across spatial frequencies was greatest at stimulus durations approximately equal to fixation durations during reading.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lovegrove, W J -- Bowling, A -- Badcock, D -- Blackwood, M -- New York, N.Y. -- Science. 1980 Oct;210(4468):439-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7433985" target="_blank"〉PubMed〈/a〉
    Keywords: Afterimage/physiology ; Dyslexia/*physiopathology ; Humans ; Space Perception/physiology ; Time Factors ; Visual Perception/*physiology
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    Elevated cerebrospinal fuid norepinephrine in schizophrenics: confounding effects of treatment drugs (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lipsky, J J -- New York, N.Y. -- Science. 1980 Oct 3;210(4465):97.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6106286" target="_blank"〉PubMed〈/a〉
    Keywords: Antipsychotic Agents/*pharmacology ; Humans ; Norepinephrine/*cerebrospinal fluid ; Research Design ; Schizophrenia/*cerebrospinal fluid/drug therapy ; Time Factors
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    Selective inhibition of glycoprotein and membrane protein of vesicular stomatitis virus from interferon-treated cells (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-01
    Description: A 200-fold inhibition in the titer of infectious vesicular stomatitis virus (VSV) was produced in cultures of Ly cells treated with 30 reference units of interferon per milliliter. Virus particle production, as measured by VSV particle-associated transcriptase, or nucleocapsid protein was inhibited by a maximum of tenfold. The glycoprotein and membrane protein content was reduced in VSV derived from interferon-treated cells. Thus interferon-treated cells may have produced VSV particles with low infectivity, which may be related to the reduced amount of glycoprotein incorporated into such particles. These findings resemble those reported in interferon-treated cells infected with murine leukemia viruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maheshwari, R K -- Jay, F T -- Friedman, R M -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):540-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Defective Viruses/growth & development ; Glycoproteins/*biosynthesis ; Interferons/*pharmacology ; Membrane Proteins/*biosynthesis ; Mice ; RNA, Viral/metabolism ; Vesicular stomatitis Indiana virus/*growth & development ; Viral Proteins/*biosynthesis ; Virus Replication/*drug effects
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    NMR opens a new window into the body. The use of nuclear magnetic resonance for medical diagnosis hovers on the brink of practical application (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):302-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6252606" target="_blank"〉PubMed〈/a〉
    Keywords: Brain Diseases/diagnosis ; History, 20th Century ; Humans ; Magnetic Resonance Spectroscopy/history/*methods ; Magnetics ; Neoplasms/diagnosis/pathology ; Protons ; Tomography/*instrumentation ; Water
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    Calmodulin: a protein for all seasons (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):274-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6102798" target="_blank"〉PubMed〈/a〉
    Keywords: Actomyosin/physiology ; Animals ; Calcium/*physiology ; Calcium-Binding Proteins/*physiology ; Calcium-Transporting ATPases/metabolism ; Calmodulin/*physiology ; Cyclic AMP/metabolism ; Humans ; Mitosis ; Muscle Contraction ; Muscle, Smooth/physiology ; NAD/metabolism ; Neurotransmitter Agents/metabolism ; Phosphoric Diester Hydrolases/metabolism ; Protein Kinases/metabolism
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    (-)Pentobarbital opens ion channels of long duration in cultured mouse spinal neurons (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-07-25
    Description: Intracellular recordings from voltage-clamped mouse spinal neurons in tissue culture were used to study the membrane mechanisms underlying inhibitory responses to gamma-aminobutyric acid and the (-) isomer of pentobarbital. Fluctuation analysis suggested that both substances activated ion channels in the membranes. However, the channels activated by pentobarbital remained open five times longer than those activated by gamma-aminobutyric acid.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mathers, D A -- Barker, J L -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):507-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6248961" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/drug effects/physiology ; Cells, Cultured ; Ion Channels/drug effects/*physiology ; Membrane Potentials/drug effects ; Mice ; Neurons/drug effects/*physiology ; Pentobarbital/*pharmacology ; Spinal Cord/*physiology ; gamma-Aminobutyric Acid/pharmacology
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    Ozone depletion would have dire effects (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1980 Jan 25;207(4429):394-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350672" target="_blank"〉PubMed〈/a〉
    Keywords: Air Pollutants/adverse effects ; Atmosphere ; Chlorofluorocarbons, Methane/*adverse effects ; Humans ; Melanoma/etiology ; *Ozone ; Plants ; Refrigeration ; Skin Neoplasms/*etiology ; Water
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    Vesicle targeting: timed release and specificity for leukocytes in mice by subcutaneous injection (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-18
    Description: When unilamellar vesicles were administered subcutaneously in mice, the half-time for the destruction of the vesicles varied from 12 to 600 hours, depending on their composition. The vesicles tested consisted of distearoyl phosphatidylcholine, cholesterol, and certain sugar and amino-sugar derivatives of cholesterol. Vesicle with amino-sugar derivatives showed the greatest longevity and became localized with high specificity in aggregates of polymorphonuclear leukocytes. A substantial delay between the time that the vesicles broke open and the time that labels contained in the vesicles were excreted suggests that the vesicles undergo endocytosis before destruction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mauk, M R -- Gamble, R C -- Baldeschwieler, J D -- New York, N.Y. -- Science. 1980 Jan 18;207(4428):309-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350660" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cholesterol/analogs & derivatives ; Endocytosis ; Liposomes/*therapeutic use ; Lysosomes/metabolism ; Metabolic Clearance Rate ; Mice ; Neutrophils/*metabolism ; Phosphatidylcholines ; Structure-Activity Relationship
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    X-ray and neutron scattering density profiles of the intact human red blood cell membrane (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-28
    Description: Hemoglobin-free human red blood cell membranes have been prepared with glutaraldehyde to maintain an intact structure on partial dehydration. Treatment of resealed ghosts with poly(L-lysine) produced an essentially constant structural unit and permitted correlation of electron microscopy results with x-ray and neutron diffraction profiles. These profiles provide detailed information, for the intact membrane, on the location and relative distribution of lipids and proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCaughan, L -- Krimm, S -- New York, N.Y. -- Science. 1980 Mar 28;207(4438):1481-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361101" target="_blank"〉PubMed〈/a〉
    Keywords: Erythrocyte Membrane/metabolism/*ultrastructure ; Erythrocytes/*ultrastructure ; Humans ; Membrane Lipids ; Membrane Proteins ; Neutrons ; Scattering, Radiation ; Spectrin/metabolism ; Water ; X-Ray Diffraction
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    Mebendazole therapy of parenteral trichinellosis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-14
    Description: Mebendazole was highly effective against the helminth parasite Trichinella spiralis in mice subjected to a 3-day course of treatment during the invasive and encystment phases of experimental trichinellosis. When treatment began either 2 or 4 weeks after the mice were inoculated with parasites, the number of larvae developing in the host musculature was greatly reduced by twice-daily oral administration of 3.125, 6.25, or 12.5 milligrams of mebendazole per kilogram of body weight.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCracken, R O -- Taylor, D D -- New York, N.Y. -- Science. 1980 Mar 14;207(4436):1220-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355285" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Animals ; Benzimidazoles/*therapeutic use ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Larva ; Male ; Mebendazole/administration & dosage/*therapeutic use ; Mice ; Muscles/parasitology ; Trichinella/drug effects ; Trichinellosis/*drug therapy
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    Blue light and bilirubin excretion (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-11
    Description: Blue light converts bilirubin in the skin of jaundiced rats to metastable geometric isomers that are transported in blood and excreted in bile. The same reaction probably occurs in jaundiced babies exposed to light, particularly during treatment with phototherapy. Excretion of unisomerized bilirubin is prevented by intramolecular hydrogen bonding, and the pigment has to be metabolized to more polar derivatives to be excreted efficiently.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDonagh, A F -- Palma, L A -- Lightner, D A -- New York, N.Y. -- Science. 1980 Apr 11;208(4440):145-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bile/analysis ; Bilirubin/*blood/metabolism ; Humans ; Infant, Newborn ; Jaundice, Neonatal/therapy ; Liver/metabolism ; Models, Biological ; Molecular Conformation ; *Phototherapy ; Rats ; Skin/*radiation effects ; Spectrophotometry ; Stereoisomerism
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    Pharmaceuticals: their role in developing societies (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-11
    Description: The appropriate technology for control of diseases of economically underdeveloped countries happens to be mainly that applicable to groups as a whole; whereas that effective for most diseases of industrialized societies must be individually delivered. The latter area is where the pharmaceutical industry has scored its greatest triumphs, yet most of this technology does not fit the major disease problems as they now exist in the developing countries. The argument is presented that in order for the U.S. industry to do more in the developing countries, the most needed invention is not a new drug, but a new system for drug development--a new R & D system tailored specially to both the financial and the biologic needs of the problem.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDermott, W -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):240-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384797" target="_blank"〉PubMed〈/a〉
    Keywords: *Delivery of Health Care ; *Developing Countries ; Humans ; Infant Mortality ; Infant, Newborn ; *Public Health ; Research ; *Technology, Pharmaceutical ; United States
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    Biomedical implantable microelectronics (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-10-17
    Description: Innovative applications of microelectronics in new biomedical implantable instruments offer a singular opportunity for advances in medical research and practice because of two salient factors: (i) beyond all other types of biomedical instruments, implants exploit fully the inherent technical advantages--complex functional capability, high reliability, lower power drain, small size and weight-of microelectronics, and (ii) implants bring microelectronics into intimate association with biological systems. The combination of these two factors enables otherwise impossible new experiments to be conducted and new paostheses developed that will improve the quality of human life.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meindl, J D -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):263-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423185" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Flow Velocity ; Humans ; Microcomputers ; Monitoring, Physiologic/*instrumentation ; Pacemaker, Artificial/instrumentation ; Prostheses and Implants/*instrumentation ; Rheology ; Telemetry/instrumentation
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    Buprenorphine suppresses heroin use by heroin addicts (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-02-08
    Description: Heroin-dependent men were given buprenorphine (a partial opiate agonist-antagonist) or a placebo under duoble-blind conditions on a clinical research ward where they could acquire heroin (21 to 40.5 milligrams per day, intravenously). Buprenorphine significantly (P less than .001) suppressed the self-administration of heroin over 10 days. Control subjects took between 93 and 100 percent of the available heroin. The effects of buprenorphine were dose-dependent; a dose of 8 milligrams per day reduced heroin use by 69 to 98 percent; a dose of 4 milligrams per day reduced heroin use by 45 percent. Termination of buprenorphie maintenance did not result in opiate withdrawal signs or symptoms. The subjects liked buprenorphine and indicated that it was preferable to methadone or naltrexone. Buprenorphine should be a safe and effective new pharmacotherapy for heroin dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mello, N K -- Mendelson, J H -- New York, N.Y. -- Science. 1980 Feb 8;207(4431):657-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352279" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Buprenorphine/adverse effects/*therapeutic use ; Double-Blind Method ; Heroin Dependence/*drug therapy ; Humans ; Informed Consent ; Morphinans/*therapeutic use ; Substance Withdrawal Syndrome/prevention & control ; Substance-Related Disorders/prevention & control
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    Insertion of a new gene of viral origin into bone marrow cells of mice (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-30
    Description: DNA containing the herpes simplex virus thymidine kinase (HSVtk) gene was used to transform wild-type tk+ mouse L cells to a tk++ status in vitro using methotrexate as a selective agent. HSVtk DNA was also used to transform mouse bone marrow cells in vitro. Transformed marrow cells injected into irradiated and methotrexate-treated recipient mice gave rise to proliferating cells which in some cases dominated the marrow population and which contained HSVtk gene sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mercola, K E -- Stang, H D -- Browne, J -- Salser, W -- Cline, M J -- New York, N.Y. -- Science. 1980 May 30;208(4447):1033-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6246577" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/*enzymology ; Bone Marrow Transplantation ; DNA, Viral/analysis ; Drug Resistance ; *Genes, Viral ; L Cells (Cell Line) ; Methotrexate/pharmacology ; Mice ; Simplexvirus/enzymology/*genetics ; Species Specificity ; Thymidine Kinase/*genetics ; *Transformation, Genetic
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    Binding and factor XIIIa-mediated cross-linking of a 27-kilodalton fragment of fibronectin to Staphylococcus aureus (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-22
    Description: A 27-kilodalton tryptic fragment, derived from the amino terminus of the 200-kilodalton fibronectin subunit, inhibited binding of intact fibronectin to Staphylococcus aureus and could be cross-linked to Staphylococcus aureus by blood coagulation Factor XIIIa. Interactions of fibronectin with Staphylococcus aureus via this fragment may be important for bacterial opsonization and attachment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mosher, D F -- Proctor, R A -- New York, N.Y. -- Science. 1980 Aug 22;209(4459):927-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403857" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Factor XIII/*metabolism ; Fibronectins/*metabolism ; Humans ; Molecular Weight ; Opsonin Proteins ; Peptide Fragments ; Protein Binding ; Staphylococcus aureus/immunology/*metabolism ; Trypsin/metabolism
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    Animal anorexias (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-22
    Description: Eating very little in the presence of food or failure to serach for food has been documented in various species during the hibernation season, incubation, molting, and defense of the territory or harem. At these times feeding competes with other, more important activities. One way to avoid conflicts between feeding and these other activities to lower the programmed weight or set-point for body fat. Experiments on mammalian hibernators and incubating birds provide evidence that set-points are indeed lowered. Failure to eat in these two examples depends on anorexia, loss of appetite. A review of other examples suggests that conceptualization in terms of lowered set-points provides a unified and testable way of understanding many naturally occurring instances of fasting in the animal kingdom. Finally, spontaneous animal anorexias are contrasted with attempts by people to lose weight.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mrosovsky, N -- Sherry, D F -- New York, N.Y. -- Science. 1980 Feb 22;207(4433):837-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6928327" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anorexia/*veterinary ; Anorexia Nervosa/physiopathology ; Behavior, Animal/*physiology ; Birds/physiology ; Body Weight ; Disease Models, Animal ; Energy Metabolism ; Feeding Behavior/*physiology ; Feeding and Eating Disorders/*veterinary ; Hibernation ; Humans ; Maternal Behavior/physiology ; Obesity/physiopathology ; Rodentia/physiology ; Territoriality
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  • 77
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    Expression of a bacterial gene in mammalian cells (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-19
    Description: Transfection of cultured monkey kidney cells with recombinant DNA constructed with a cloned Escherichia coli gene that codes for xanthine-guanine phosphoribosyltransferase and several different SV40 DNA-based vectors, results in the synthesis of readily measurable quantities of the bacterial enzyme. Moreover, the physiological defect in purine nucleotide synthesis characteristic of human Lesch-Nyhan cells can be overcome by the introduction of the bacterial gene into these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulligan, R C -- Berg, P -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1422-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251549" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cloning, Molecular/methods ; DNA, Bacterial/*genetics ; *DNA, Recombinant ; Escherichia coli ; *Genes ; Haplorhini ; Humans ; Hypoxanthine Phosphoribosyltransferase/genetics ; Lesch-Nyhan Syndrome/*genetics ; Pentosyltransferases/*genetics ; Simian virus 40/genetics ; Transduction, Genetic ; Transformation, Genetic
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  • 78
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    Asymmetry in facial expression (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nelson, C A -- Horowitz, F D -- New York, N.Y. -- Science. 1980 Aug 15;209(4458):834.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403852" target="_blank"〉PubMed〈/a〉
    Keywords: Anthropometry ; Emotions ; *Facial Expression ; Female ; *Functional Laterality ; Humans ; Male
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  • 79
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    T-1 cells are HeLa and not of normal human kidney origin (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nelson-Rees, W A -- Flandermeyer, R R -- Daniels, D W -- New York, N.Y. -- Science. 1980 Aug 8;209(4457):719-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394535" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Chromosome Banding ; HLA Antigens/analysis ; HeLa Cells/*cytology/immunology ; Humans ; Karyotyping ; Kidney/*cytology/immunology ; Metaphase
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  • 80
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    J genes for heavy chain immunoglobulins of mouse (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-05
    Description: A 15,8-kilobase pair fragment of BALB/c mouse liver DNA, cloned in the Charon 4A lambda phage vector system, was shown to contain the mu heavy chain constant region (CHmu) gene for the mouse immunoglobulin M. In addition, this fragment of DNA contains at least two J genes, used to code for the carboxyl terminal portion of heavy chain variable regions. These genes are located in genomic DNA about eight kilobase pairs to the 5' side of the CHmu gene. The complete nucleotide sequence of a 1120-base pair stretch of DNA that includes the two J genes has been determined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newell, N -- Richards, J E -- Tucker, P W -- Blattner, F R -- New York, N.Y. -- Science. 1980 Sep 5;209(4461):1128-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6250219" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites, Antibody/*genetics ; DNA Restriction Enzymes ; DNA, Recombinant ; Genes ; Genetic Linkage ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Variable Region/*genetics ; Immunoglobulin mu-Chains/*genetics ; Mice
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  • 81
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    Gene affecting superoxide dismutase activity linked to the histocompatibility complex in H-2 congenic mice (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-04
    Description: The activity of cyanide-sensitive, Cu-Zn superoxide dismutase (SOD) was studied in liver sytosols from H-2 congenic strains of mice. Higher SOD activity was found in livers of mice having H-2b/A.BY, B10, and C3H.SW/haplotypes than in those of H-2a, H-2k and H-2d haplotypes. Segregation studies supported these correlations. In H-2 recombinant strains of mice, the genes influencing the liver SOD activity occur, as ascertained by mapping techniques, at or near the H-2d region of the major histocompatibility complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novak, R -- Bosze, Z -- Matkovics, B -- Fachet, J -- New York, N.Y. -- Science. 1980 Jan 4;207(4426):86-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350646" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Genes ; Genes, Regulator ; Genetic Linkage ; H-2 Antigens/*genetics ; Liver/enzymology ; *Major Histocompatibility Complex ; Mice ; Superoxide Dismutase/*genetics
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  • 82
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    Substance P: does it produce analgesia or hyperalgesia? (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-18
    Description: In the hot plate test, substance P given intravenously at doses of 5 x 10-5 and 5 x 10-4 gram per kilogram caused analgesia, while lower doses caused hyperalgesia. The influence of substance P on nociception depended on the individual mouse's sensitivity to pain (control response latency). Analgesia was produced by substance P administered to mice with high sensitivity to thermic stimulation, whereas hyperalgesia occurred in mice whose control latencies were longer than normal. This result is interpreted as an indication that substance P is capable of normalizing responsiveness to pain and could be classified as a regulatory peptide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oehme, P -- Hilse, H -- Morgenstern, E -- Gores, E -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):305-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6154313" target="_blank"〉PubMed〈/a〉
    Keywords: Acetates ; Animals ; Dose-Response Relationship, Drug ; Hot Temperature ; Hyperalgesia/*chemically induced ; Hyperesthesia/*chemically induced ; Mice ; Nociceptors/drug effects ; Pain/*physiopathology ; Perception/*drug effects ; Receptors, Drug/physiology ; Substance P/*pharmacology
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  • 83
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    Human monoclonal antibody against Forssman antigen (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-10-31
    Description: Hybrid cells formed between human lymphocytes and mouse myeloma cells produce human immunoglobulin in culture. Stable antibody-producing cell lines can be isolated after multiple cycles of low-density passage, cloning, and continued selection for immunoglobulin production. The origin and characteristics of a hybrid of human and mouse cells is described. This hybrid produces high concentrations (8.3 micrograms per milliliter) of human immunoglobulin M reactive with the terminal disaccharide of the Forssman glycolipid. These findings point to the potential use of human-mouse hybrid cells as a source of human monoclonal antibodies for therapeutic and diagnostic purposes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nowinski, R -- Berglund, C -- Lane, J -- Lostrom, M -- Bernstein, I -- Young, W -- Hakomori, S I -- Hill, L -- Cooney, M -- New York, N.Y. -- Science. 1980 Oct 31;210(4469):537-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423202" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; Antibody Formation ; Antibody Specificity ; Cells, Cultured ; Clone Cells/immunology ; *Forssman Antigen ; Humans ; Hybrid Cells/immunology ; Immunoglobulin M/biosynthesis ; Mice
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  • 84
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    Visually induced self-motion sensation adapts rapidly to left-right visual reversal (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-08-08
    Description: After 1 to 3 hours of active movement while wearing vision-reversing goggles, 9 of 12 (stationary) human subjects viewing a moving stripe display experienced a self-rotation illusion in the same direction as seen stripe motion, rather than in the opposite (normal) direction. This result indicates that the neural pathways which process visual self-rotation cues can undergo rapid adaptive modification.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oman, C M -- Bock, O L -- Huang, J K -- New York, N.Y. -- Science. 1980 Aug 8;209(4457):706-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394530" target="_blank"〉PubMed〈/a〉
    Keywords: *Functional Laterality ; Humans ; *Movement ; Vision, Ocular ; Visual Pathways/physiology ; *Visual Perception
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  • 85
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    alpha-Lactalbumin-casein induction in virgin mouse mammary explants: dose-dependent differential action of cortisol (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-21
    Description: The interplay of insulin, cortisol, and prolactin induces synthesis of casein and alpha-lactalbumin in cultured mammary explants from mature virgin mice. A striking difference has been found between the optimal concentrations of cortisol required for maximal induction of the two milk proteins in vitro: 3 x 10(-8) molar for alpha-lactalbumin and 3 x 10(-6) molar for casein. Moreover, 10(-7) to 10(-5) molar cortisol caused progressive inhibition of alpha-lactalbumin accumulation. Such differential actions of cortisol may partly account for the asynchronous synthesis of the two proteins during pregnancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ono, M -- Oka, T -- New York, N.Y. -- Science. 1980 Mar 21;207(4437):1367-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6986657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caseins/*biosynthesis ; Dose-Response Relationship, Drug ; Drug Interactions ; Female ; Hydrocortisone/*pharmacology ; Insulin/pharmacology ; Lactalbumin/*biosynthesis ; Mammary Glands, Animal/drug effects/*metabolism ; Mice ; Organ Culture Techniques ; Pregnancy ; Prolactin/pharmacology
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  • 86
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    Osteoporosis: a cautionary note (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Orloff, S -- Manicourt, D -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):240.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367856" target="_blank"〉PubMed〈/a〉
    Keywords: Bone and Bones/physiopathology ; Calcinosis ; Collagen/physiology ; Humans ; Osteoporosis/*physiopathology
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  • 87
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    Properties of a normal mouse cell DNA sequence (sarc) homologous to the src sequence of Moloney sarcoma virus (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-14
    Description: A 15.0-kilobase (kb) Eco RI DNA fragment from normal mouse Balb/c genomic DNA that contains sequences (sarc) homologous to the acquired cell sequences (src) of Moloney sarcoma virus (MSV) has been cloned in phage lambda. The sarc region (1.2 to 1.3 kb) of the 15.0-kb cell fragment is indistinguishable from the src region of two isolates of MSV as judged by heteroduplex and restriction endonuclease analyses. The cellular sequences flanking sarc show no homology to other MSV sequences. Whereas cloned subgenomic portions of MSV that contain src transformed NIH-3T3 cells in vitro, the cloned sarc fragment is inactive.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oskarsson, M -- McClements, W L -- Blair, D G -- Maizel, J V -- Vande Woude, G F -- New York, N.Y. -- Science. 1980 Mar 14;207(4436):1222-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243788" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosome Mapping ; DNA Restriction Enzymes ; *Genes ; *Genes, Viral ; Mice ; Mice, Inbred BALB C/*genetics ; Moloney murine leukemia virus/*genetics ; Nucleic Acid Hybridization
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  • 88
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    Cytosolic and microsomal epoxide hydrolases: differential properties in mammalian liver (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-28
    Description: The epoxide hydrolase activities of the 100,000 g pellet (microsomal) and 100,00 g soluble (cystosolic) fractions of mouse, rat, and guinea pig liver were measured with three closely related compounds used as substrates. Differences between the species in the distribution of the cytosolic and microsomal hydrolases and in their substrate specificities and pH optima demonstrate why epoxide hydrolase activity in the cytosolic fraction was not detected earlier in spie of intensive work on the microsomal epoxide hydrolase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ota, K -- Hammock, B D -- New York, N.Y. -- Science. 1980 Mar 28;207(4438):1479-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7361100" target="_blank"〉PubMed〈/a〉
    Keywords: Allyl Compounds ; Animals ; Benzene ; Cytosol/enzymology ; Epoxide Hydrolases/*metabolism ; Guinea Pigs ; Hydrogen-Ion Concentration ; Liver/*enzymology/ultrastructure ; Mice ; Microsomes, Liver/enzymology ; Rats ; Styrenes ; Substrate Specificity
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  • 89
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    Genes for growth hormone, chorionic somatommammotropin, and growth hormones-like gene on chromosome 17 in humans (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-07-11
    Description: The human genes for growth hormone (GH), chorionic somatomammotropin (CSH), and a third growth hormone-like gene (GHL) have been located on chromosome 17 in humans. DNA fragments of 2.6, 2.8, and 9.5 kilobase pairs containing GH, CSH, and GHL, respectively, were identified in human genomic DNA, and a 7.5-kilobase DNA fragment related to growth hormone DNA sequences was found in mouse cells. In somatic hybrids of human and mouse cells containing reduced numbers of human chromosomes, but a normal complement of mouse chromosomes, the mouse, 7.5-kolobase DNA fragment was always present, whereas the 2.6-, 2.8-, and 9.5-kilobase human fragments were present only when human chromosome 17 was also present.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Owerbach, D -- Rutter, W J -- Martial, J A -- Baxter, J D -- Shows, T B -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):289-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384802" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; *Chromosomes, Human, 16-18 ; *DNA/metabolism ; *Genes ; Growth Hormone/*biosynthesis ; Humans ; Hybrid Cells/metabolism ; Mice ; Placental Lactogen/*biosynthesis ; Translocation, Genetic
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  • 90
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    Brain events underlying detection and recognition of weak sensory signals (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-03
    Description: Through the use of a quantitative extension of signal detection theory, the brain events associated with the detection and recognition of weak acoustic signals were examined by recording brain event-related potentials. The early N100 componenet of the event-related potential varied only with detection, whereas the late P300 component varied with both detection and recognition. P300 amplitude accurately predicted recognition performance on a trial-by-trial basis. The results suggest that detection and recognition are partially concurrent processes in perception and demonstrate that the electrocortical events occurring during the perception of sensory stimuli are closely associated with both detection and recognition of these stimuli by the nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parasuraman, R -- Beatty, J -- New York, N.Y. -- Science. 1980 Oct 3;210(4465):80-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7414324" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Auditory Perception/*physiology ; Brain/*physiology ; Electroencephalography ; Electrooculography ; *Evoked Potentials, Auditory ; Humans ; Noise ; Sound
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  • 91
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    Inverse relation between low-density lipoprotein-cholesterol and dehydroisoandrosterone sulfate in human fetal plasma (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-05-02
    Description: A striking inverse correlation was found in umbilical cord plasma between the concentrations of dehydroisoandrosterone sulfate and low-density lipoprotein (LDL)-cholesterol but not high-density lipoprotein-cholesterol or very low density lipoprotein-cholesterol. Dehydroisoandrosterone sulfate is a major secretory product of the human fetal adrenal and the principal precursor of placental estrogen production. The data suggest that the concentrations for LDL-cholesterol in fetal plasma are influenced by the rate of utilization of LDL-cholesterol by the fetal adrenal for steroidogenesis and are not necessarily related to a genetic predisposition for hypercholesterolemia or other lipoprotein disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, C R Jr -- Simpson, E R -- Bilheimer, D W -- Leveno, K -- Carr, B R -- MacDonald, P C -- New York, N.Y. -- Science. 1980 May 2;208(4443):512-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6445079" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex/metabolism ; Adrenal Cortex Hormones/secretion ; Cholesterol/*blood ; Dehydroepiandrosterone/*analogs & derivatives/blood/metabolism ; Dehydroepiandrosterone Sulfate ; Female ; Fetal Blood/*analysis ; Humans ; Hypertension/metabolism ; Lipoproteins, LDL/*blood/metabolism ; Maternal-Fetal Exchange ; Pregnancy ; Pregnancy Complications, Cardiovascular/metabolism
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  • 92
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    Opiate analgesia: evidence for mediation by a subpopulation of opiate receptors (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-05-02
    Description: Naloxazone, a hydrazone derivative of the opiate antagonist naloxone, has a high affinity for opiate receptor binding sites. Naloxazone injections reduce opiate receptor binding to extensively washed mouse brain membranes for more than 24 hours, suggesting that the effect is irreversible. High-affinity binding sites are abolished by this treatment, whereas low-affinity sites are unaffected. Naloxazone treatment blocks the analgesic effects of morphine for at least 24 hours but does not prevent death from high doses of morphine. Thus analgesic but nonlethal opiate effects may be mediated by the high-affinity subpopulation of opiate receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pasternak, G W -- Childers, S R -- Snyder, S H -- New York, N.Y. -- Science. 1980 May 2;208(4443):514-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6245448" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites/drug effects ; Brain/metabolism ; Mice ; Morphine/pharmacology/toxicity ; Naloxone/adverse effects/*analogs & derivatives/pharmacology ; Receptors, Opioid/classification/*drug effects/physiology
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  • 93
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    Appraising psychotherapy (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-02-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parloff, M B -- New York, N.Y. -- Science. 1980 Feb 22;207(4433):823.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7356844" target="_blank"〉PubMed〈/a〉
    Keywords: Government Agencies ; Humans ; Psychotherapy/*standards ; United States
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  • 94
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    Alzheimer's disease: X-ray spectrometric evidence of aluminum accumulation in neurofibrillary tangle-bearing neurons (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-18
    Description: The elemental content of neurons of the hippocampus was studied by a combination of scanning electron microscopy and x-ray spectrometry in autopsy-derived brain tissue from three cases of senile dementia (Alzheimer type) and three nondemented elderly controls. Foci of aluminum were detected within the nuclear region of a high percentage of neurons containing neurofibrillary tangles from the cases of senile dementia as well as the elderly controls. The adjacent normal-appearing neurons from both groups of patients were virtually free of detectable aluminum. These findings suggest that the association of aluminum to Alzheimer's disease extends to the neuronal level.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perl, D P -- Brody, A R -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):297-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367858" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum/*metabolism ; Alzheimer Disease/*metabolism/pathology ; Cell Nucleus/metabolism ; Dementia/*metabolism ; Electron Probe Microanalysis ; Hippocampus/*metabolism ; Humans ; Magnesium/metabolism ; Microscopy, Electron, Scanning ; Neurofibrils/ultrastructure ; Silicon/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 95
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    Sperm-egg interaction: evidence for boar sperm plasma membrane receptors for porcine zona pellucida (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-04
    Description: Freshly ejaculated, noncapacitated boar sperm bind rapidly and in large numbers to pig egg zona pellucida in vitro. In the present study, the number of sperm bound decreased sharply when sperm motility was lowered by energy poisons or by reducing the temperature. Highly motile sperm from humans, guinea pigs, and rats, added at concentrations ten times higher than control sperm, did not bind to the porcine zona. At the same high concentration, a small number of hamster and bull sperm bound to the zona. Binding of boar sperm to the zona pellucida was blocked almost completely by diluted whole antiserum to sperm plasma membranes and by univalent (Fab) antibody to these membranes. When antibody to sperm plasma membrane was first absorbed with plasma membrane vesicles, sperm binding was not inhibited. These results provide direct evidence for the existence of sperm plasma membrane receptors for the zona pellucida of the pig.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peterson, R N -- Russell, L -- Bundman, D -- Freund, M -- New York, N.Y. -- Science. 1980 Jan 4;207(4426):73-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7188647" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; Cell Membrane/metabolism ; Female ; *Fertilization ; Guinea Pigs ; Humans ; Immunoglobulin Fab Fragments ; Male ; Ovum/*metabolism ; Rats ; Receptors, Drug/metabolism ; Species Specificity ; *Sperm-Ovum Interactions ; Spermatozoa/*metabolism ; Swine ; Zona Pellucida/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    Blood lead concentrations in a remote Himalayan population (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-12-05
    Description: The lead content in the air at the foothills of the Himalayas in Nepal was found to be negligible. The concentration of lead in the blood of 103 children and adults living in this region was found to average 3.4 micrograms per deciliter, a level substantially lower than that found in industrialized populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piomelli, S -- Corash, L -- Corash, M B -- Seaman, C -- Mushak, P -- Glover, B -- Padgett, R -- ES-01104/ES/NIEHS NIH HHS/ -- ES-26437/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1980 Dec 5;210(4474):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7444442" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Air Pollutants/*analysis ; Child, Preschool ; China ; Environment ; Female ; Humans ; *Industry ; Lead/*blood ; Male ; Nepal
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    Cadmium concentrations in blood (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pleban, P -- New York, N.Y. -- Science. 1980 May 2;208(4443):520.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367877" target="_blank"〉PubMed〈/a〉
    Keywords: Cadmium/*blood/urine ; Erythrocytes/analysis ; Humans ; Plasma/analysis ; Smoking/*physiopathology ; Specimen Handling
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    Ultrasonic diagnostic instruments (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-10-17
    Description: The underlying physical principles and current limitations of diagnostic ultrasonic instruments are reviewed. Recently developed ultrasonic imaging devices using pulsed-reflected ultrasound are discussed in detail. These instruments transmit short trains of 1.5- to 10-megahertz sound. Echoes reflected from tissue are converted to electrical signals, which are presented on a display device to outline the contour of tissues and organs within the body. The physical resolution of the system is dependent on several design factors in addition to the transmitted sound frequencies. A resolution volume of approximately 1.5 by 3 by 4 millimeters is achieved optimally with commercially available systems operating at 2.25 megahertz. The various instrument designs are described in the context of clinical usage. Because the sound is diffracted, refracted, and reflected, tghe imaging considerations are different from those of x-ray imaging. Diagnostic devices based on the Doppler principle are distinguished from pulsed-reflected ultrasonic instruments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Popp, R L -- Macovski, A -- GM-17940/GM/NIGMS NIH HHS/ -- HL-21278/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):268-73.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423186" target="_blank"〉PubMed〈/a〉
    Keywords: Auscultation/instrumentation ; Blood Flow Velocity ; Echocardiography/methods ; Heart Valve Diseases/diagnosis ; Humans ; Rheology ; Ultrasonics/*instrumentation ; Ultrasonography
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    Estrogen and the growth of breast cancer: new evidence suggests indirect action (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-08
    Description: The growth of the MCF-7 human breast cancer cell line is unresponsive to the presence of estrogen in culture media. Paradoxically, in nude mice, growth of these cells and formation of solid tumors are dependent on estrogen. Tumors fail to develop in ovariectomized mice, but do develop in intact mice and in ovariectomized mice given estrogen. Primary cultures derived from MCF-7 tumors revert to unresponsiveness to estrogen. However, when these cultures are again transplanted into nude mice, estrogen is required for tumor formation. The continuous culture, the solid tumor, and the primary cultures therefrom have similar estrogen-binding capacities and affinities. These results indicate that mammary carcinoma cell growth in vivo is subject to inhibition that can be overcome by estrogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shafie, S M -- New York, N.Y. -- Science. 1980 Aug 8;209(4457):701-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6994231" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/metabolism/*physiopathology ; Castration ; Cell Division/drug effects ; Cell Line ; Cytosol/metabolism ; Estradiol/metabolism/*pharmacology ; Female ; Humans ; Insulin/pharmacology ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Receptors, Estrogen/metabolism ; Transplantation, Heterologous
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    Correction of enzyme deficiency in mice by allogeneic bone marrow transplantation with total lymphoid irradiation (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-12-05
    Description: Enzyme deficiency was corrected in mice after allogeneic bone marrow transplantation with occurrence of graft versus host disease. beta-Glucuronidase-deficient C3H/HeJ mice were treated with total lymphoid irradiation. Normal bone marrow cells (30 X 10(6)) from BALB/c to C3H/HeJ chimeras (〉90 percent circulating donor-type cells) without graft versus host disease. beta-Glucuronidase activity increases to normal levels in all chimeras as measured in the liver and in the plasma. Activity was maintained throughout an observation period of 7 months.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slavin, S -- Yatziv, S -- A1 15387/PHS HHS/ -- New York, N.Y. -- Science. 1980 Dec 5;210(4474):1150-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7003711" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow Transplantation ; Glucuronidase/blood/*deficiency ; Liver/enzymology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Radiation Chimera ; Transplantation, Homologous
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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