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  • Female  (101)
  • Gene Expression Regulation  (20)
  • American Association for the Advancement of Science (AAAS)  (120)
  • 1980-1984  (120)
  • 1975-1979
  • 1983  (120)
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (120)
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  • 1980-1984  (120)
  • 1975-1979
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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-04
    Description: Blink-startle responses to vibroacoustic stimulation were monitored ultrasonically in human fetuses of known gestational age. Responses were first elicited between 24 and 25 weeks of gestational age and were present consistently after 28 weeks. Defining the developmental sequence for audition provides a foundation for diagnosing deafness and recognizing aberrant responses antenatally.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnholz, J C -- Benacerraf, B R -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):516-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623091" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Ear/*embryology ; Female ; Fetus/*physiology ; Gestational Age ; *Hearing ; Humans ; Pregnancy ; Ultrasonography ; Vibration
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1983-04-15
    Description: Spirochetes believed to be the cause of Lyme disease were isolated from white-footed mice and white-tailed deer, the preferred natural hosts of Ixodes dammini, the tick vector. Evidence suggests that deer act as a reservoir of the disease and provide an overwintering mechanism for both spirochetes and adult ticks. Some tick larvae may acquire the spirochete by transovarial passage and the nymphal stage may transmit the disease to humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bosler, E M -- Coleman, J L -- Benach, J L -- Massey, D A -- Hanrahan, J P -- Burgdorfer, W -- Barbour, A G -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):321-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836274" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachnid Vectors/microbiology ; Arthritis, Infectious/microbiology/transmission ; Deer/microbiology/parasitology ; Disease Vectors ; Female ; Humans ; Male ; Peromyscus/microbiology/parasitology ; Spirochaetales/*growth & development ; Ticks/*microbiology
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-03-25
    Description: The activity of 7,12-dimethylbenz[a]anthracene hydroxylase in the rat ovary is several times higher in the proestrous phase of the estrous cycle than in the estrous and metestrous plus diestrous phases. Administration of gonadotropin leads to a similar increase in the capacity of the ovary to metabolize xenobiotics. This variation in the activity of 7,12-dimethylbenz[a]anthracene hydroxylase during the estrous cycle may be related to the marked changes in the incidence of ovarian cancer during menopause and in women taking contraceptive pills.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bengtsson, M -- Rydstrom, J -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aryl Hydrocarbon Hydroxylases/*metabolism ; Cytochrome P-450 Enzyme System/metabolism ; Epoxide Hydrolases/metabolism ; *Estrus ; Female ; Glutathione Transferase/metabolism ; Gonadotropins, Equine/*pharmacology ; Metestrus ; Ovary/*physiology ; Pregnancy ; Proestrus ; Quinone Reductases/metabolism ; Rats ; Rats, Inbred Strains
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1983 Sep 23;221(4617):1244-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6684327" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dose-Response Relationship, Drug ; Ethanol/*adverse effects ; Female ; Pregnancy ; Pregnancy, Animal/*drug effects
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  • 5
    Publication Date: 1983-08-19
    Description: Oral administration of 13-cis-retinoic acid (40 or 160 milligrams per kilogram of body weight daily) significantly reduced the inflammation associated with developing and established adjuvant arthritis, an experimentally induced arthritis in rats that resembles human rheumatoid arthritis. The amount of collagenase secreted in tissue culture by adherent cells isolated from the inflamed joints of adjuvant rats treated with 13-cis-retinoic acid also decreased as compared to the amount secreted by cells from vehicle-treated adjuvant rats. Collagenase is important in the joint destruction accompanying rheumatoid arthritis. The successful use of retinoids in the treatment of this proliferative but nonmalignant disorder demonstrates a new application of these compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brinckerhoff, C E -- Coffey, J W -- Sullivan, A C -- AM14780/AM/NIADDK NIH HHS/ -- P60 AM20641/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):756-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6308759" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis/*drug therapy ; Arthritis, Experimental/*drug therapy ; Female ; Fibrinogen/blood ; Inflammation/drug therapy ; Male ; Microbial Collagenase/biosynthesis ; Prostaglandins E/biosynthesis ; Rats ; Sex Factors ; Tretinoin/*therapeutic use
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-08-26
    Description: The rate of increase of population in less developed countries accelerated rapidly from 1850 to 1960 because of a rapid decline in mortality while fertility remained high. In the 1960's, the birth rate as a whole began to decline more rapidly than the death rate--very rapidly in some populations, most notably that of China, more gradually in others, and not at all in some of the poorest populations. The momentum of growth implies continued increase in populations for several decades even in countries where fertility has fallen the most, and very large additional increases where there has been no decline in the rate of childbearing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coale, A J -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):828-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879179" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Birth Rate ; *Developing Countries ; Female ; *Fertility ; Humans ; Marriage ; Parity ; Pregnancy
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, J L -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):828-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6138857" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; DNA, Recombinant ; Gene Expression Regulation ; Nerve Tissue Proteins/*genetics ; Neurotransmitter Agents/*physiology ; Rats
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  • 8
    Publication Date: 1983-05-20
    Description: The acquired immune deficiency syndrome (AIDS), which has recently occurred at increasing rates in homosexual men, intravenous drug users, and others, is characterized by the development of Kaposi's sarcoma and several opportunistic infections including pneumonia caused by Pneumocystis carinii. Serum samples from patients with AIDS and from matched and unmatched control subjects were examined for the presence of antibodies to cell membrane antigens associated with human T-cell leukemia virus. Nineteen of 75 of the AIDS patients had antibodies directed to surface antigens of Hut 102, a reference T lymphoid cell line infected with leukemia virus, as did two of the 336 control subjects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Essex, M -- McLane, M F -- Lee, T H -- Falk, L -- Howe, C W -- Mullins, J I -- Cabradilla, C -- Francis, D P -- 2T32CA09031/CA/NCI NIH HHS/ -- 5T32HL07523/HL/NHLBI NIH HHS/ -- CA 18216/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 May 20;220(4599):859-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6342136" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Animals ; Antibodies, Viral/*analysis ; Antigens, Viral/immunology ; Female ; Fluorescent Antibody Technique ; Humans ; Lymphatic Diseases/immunology ; Male ; *Retroviridae/immunology ; T-Lymphocytes/microbiology ; Tumor Virus Infections/complications/immunology/*microbiology
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-23
    Description: Giardia lamblia, a common pathogenic intestinal parasite of humans, was rapidly killed by exposure to normal human milk in vitro. The killing did not depend on secretory immunoglobulin A. Entamoeba histolytica, the dysentery amoeba, was also killed by normal human milk. Giardia-cidal activity cochromatographed with an unusual lipase that is present in the milk of humans but not of lower mammals. Human milk may play a protective role in infants exposed to this parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gillin, F D -- Reiner, D S -- Wang, C S -- AI19863/AI/NIAID NIH HHS/ -- HD14104/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1290-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310751" target="_blank"〉PubMed〈/a〉
    Keywords: Entamoeba histolytica/growth & development ; Entamoebiasis/prevention & control ; Female ; Giardia/growth & development ; Giardiasis/*prevention & control ; Humans ; Immunoglobulin A, Secretory/immunology ; Intestines/parasitology ; Milk, Human/*parasitology ; Trichomonas Infections/prevention & control ; Trichomonas vaginalis/growth & development
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  • 10
    Publication Date: 1983-08-19
    Description: Cocaine elicited dose-related rotation (circling) in naive rats. The maximum effect was greater than observed previously with other drugs. Overall, females were more sensitive to cocaine than males. However, right-biased females were more sensitive than left-biased females, whereas left-biased males were more sensitive than right-biased males. The results suggest that sex-dependent differences in brain asymmetry may be an important determinant of cocaine sensitivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glick, S D -- Hinds, P A -- Shapiro, R M -- DA 01044/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):775-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879177" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cocaine/*pharmacology ; Dextroamphetamine/pharmacology ; Female ; Functional Laterality ; Male ; Movement/*drug effects ; Rats ; Rotation ; Sex Factors
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-09
    Description: Consistency of hand preference was examined in a longitudinal study of children between 18 and 42 months of age. Results showed a sex-specific relationship between hand consistency and intellectual development. Across a variety of intellectual abilities at all ages, females with consistency of handedness were precocious compared to females without such consistency. This relationship did not hold for males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gottfried, A W -- Bathurst, K -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1074-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879205" target="_blank"〉PubMed〈/a〉
    Keywords: Child, Preschool ; Female ; *Functional Laterality ; Humans ; Infant ; *Intelligence ; Intelligence Tests ; Male ; Sex Factors ; Time Factors
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  • 12
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-14
    Description: In vitro fertilization, in its first 5 years of use, has met minimum standards for efficacy and safety, as judged by published clinical reports. It is becoming more widely available as an approach for overcoming sterility in married couples and appears also to be gaining social acceptance in that context. Several technical options presented by the procedure, particularly storage of frozen embryos and embryo transfers involving third-party contributions, are less fully evaluated clinically and raise social, ethical, and legal questions that go beyond the original medical model for therapeutic intervention. The clinical success of in vitro fertilization and the options it affords call for careful policy consideration. Estimates of costs and of potential demand for and supply of services are provided and the current status of relevant policy in the United States and abroad is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grobstein, C -- Flower, M -- Mendeloff, J -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):127-33.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623063" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Costs and Cost Analysis ; Embryo Transfer ; Ethical Review ; Ethics ; Fallopian Tube Diseases/therapy ; Federal Government ; Female ; Fertilization in Vitro/*methods ; Humans ; Infertility, Female/therapy ; Infertility, Male/therapy ; Legislation, Medical ; Male ; Obstetrics/economics/standards ; Oocyte Donation ; Pregnancy ; Resource Allocation ; *Risk Assessment ; during its first five years. Efficacy, safety, costs, demand and supply, and ; feasible extensions of the basic procedure are discussed. The authors contend ; that, while Australia and Great Britain have made progress toward formulating ; public policy on IVF, efforts in the United States have not gone beyond a 1979 ; report and recommendations issued by the Department of Health, Education, and ; Welfare's Ethics Advisory Board. Given the ready clinical and public acceptance ; of IVF, there is need for an oversight mechanism at the federal level, perhaps ; via a forum concerned also with the overlapping area of human genetic ; intervention.
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  • 13
    Publication Date: 1983-03-25
    Description: Microinfusions of rat prolactin into the dorsal midbrain of estrogen-treated, ovariectomized rats increased lordosis behavior. Midbrain microinfusions of antiserum to prolactin into rats displaying maximum lordosis had the opposite effect. The distribution of a prolactin-like substance in the brain was studied immunocytochemically. The results suggest that a hypothalamic neuronal system projecting to the midbrain contains a prolactin-like substance that plays a role in facilitating this behavior and therefore may mediate some of the effects of estrogen on the brain. These data, together with others from studies of the prolactin gene and its regulation, indicate that it may be possible to analyze a sequence of molecular events in the brain that facilitate a behavioral response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harlan, R E -- Shivers, B D -- Pfaff, D W -- HD-05585/HD/NICHD NIH HHS/ -- HD-05737/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1451-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828874" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Animals ; Castration ; Cerebral Cortex/drug effects/*physiology ; Cosyntropin/pharmacology ; Estradiol/pharmacology ; Female ; Growth Hormone/pharmacology ; Immune Sera ; Kinetics ; Mesencephalon/*physiology ; Oxytocin/pharmacology ; Posture ; Prolactin/administration & dosage/*pharmacology ; Rats ; Sexual Behavior, Animal/*drug effects ; Vasopressins/pharmacology
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-22
    Description: Female mice that had been situated in utero between two female fetuses displayed higher levels of active avoidance responding in adult life than females that had been located between two male fetuses and males for whom uterine position was without effect. Uterine position, therefore, influences acquired as well as species-typical behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hauser, H -- Gandelman, R -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836288" target="_blank"〉PubMed〈/a〉
    Keywords: Androgens/physiology ; Animals ; Avoidance Learning/*physiology ; Female ; Fetus/*physiology ; Male ; Mice ; Pregnancy ; Rats ; Sex Factors ; Uterus
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  • 15
    Publication Date: 1983-12-23
    Description: Endotoxin-free thymosin fraction 5 elevated corticotropin, beta-endorphin, and cortisol in a dose- and time-dependent fashion when administered intravenously to prepubertal cynomolgus monkeys. Two synthetic component peptides of thymosin fraction 5 had no acute effects on pituitary function, suggesting that some other peptides in thymosin fraction 5 were responsible for its corticotropin-releasing activity. In agreement with these observations, total thymectomy of juvenile macaques was associated with decreases in plasma cortisol, corticotropin, and beta-endorphin. These findings indicate that the prepubertal primate thymus contains corticotropin-releasing activity that may contribute to a physiological immunoregulatory circuit between the developing immunological and pituitary-adrenal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, D L -- Hodgen, G D -- Schulte, H M -- Chrousos, G P -- Loriaux, D L -- Hall, N R -- Goldstein, A L -- CA 24974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1353-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318312" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Animals ; Dose-Response Relationship, Drug ; Endorphins/blood ; Female ; Hydrocortisone/blood ; Kinetics ; Macaca fascicularis ; Thymectomy ; Thymosin/analogs & derivatives/*pharmacology ; Thymus Gland/*physiology ; beta-Endorphin
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  • 16
    Publication Date: 1983-06-17
    Description: Mutations in two nonessential genes specifically block the phagocytosis of cells programmed to die during development. With few exceptions, these cells still die, suggesting that, in nematodes, engulfment is not necessary for most programmed deaths. Instead, these deaths appear to occur by cell suicide.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hedgecock, E M -- Sulston, J E -- Thomson, J N -- New York, N.Y. -- Science. 1983 Jun 17;220(4603):1277-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857247" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autophagy ; Caenorhabditis/genetics/*growth & development ; *Cell Survival ; DNA/metabolism ; Female ; Male ; Microscopy, Electron ; *Mutation
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-11
    Description: Plasmids were constructed to direct synthesis of the human interferons IFN-alpha 1, IFN-alpha 2, and IFN-gamma in the yeast Saccharomyces cerevisiae. Expression of IFN genes containing coding sequences for secretion signals resulted in the secretion of IFN activity. A large proportion of the IFN-alpha 1 and IFN-alpha 2 isolated from the yeast cell growth media had the same amino termini as the natural mature interferons, suggesting a removal of the signal sequences identical to that of human cells. These results show that a lower eukaryote, such as yeast, can utilize and process a human signal sequence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hitzeman, R A -- Leung, D W -- Perry, L J -- Kohr, W J -- Levine, H L -- Goeddel, D V -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):620-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186023" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Gene Expression Regulation ; Humans ; Interferons/*genetics/secretion ; Peptides/physiology ; Plasmids ; Protein Processing, Post-Translational ; Protein Sorting Signals ; RNA Processing, Post-Transcriptional ; Saccharomyces cerevisiae/genetics
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):908.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6227081" target="_blank"〉PubMed〈/a〉
    Keywords: *Abnormalities, Multiple ; Civil Rights ; *Disabled Persons ; Federal Government ; Female ; *Government Regulation ; Humans ; Infant, Newborn ; *Judicial Role ; *Jurisprudence ; United States ; *Withholding Treatment ; Department of Justice suit in November 1983 against the State University Hospital ; in Stony Brook, New York, to obtain the infant's medical records. Parents and ; physicians had decided against treatment for the severely handicapped newborn, ; but legal action was begun by right-to-life advocates to appoint a guardian for ; the child and to order surgery. The Department of Justice became involved after ; two New York courts ruled against the action ; the Department's intervention is ; based on Section 504 of the Rehabilitation Act, which forbids discrimination ; against the handicapped.
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  • 19
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1034.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879202" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; *Life Expectancy ; Male ; *Sex Factors ; *Smoking
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  • 20
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-02
    Description: Electrophoretic analysis of glucose-6-phosphate dehydrogenase was performed on polyp tissue from three black female patients with Gardner syndrome and who are heterozygous for the A and B forms of this enzyme. Polyp tissues from the three patients displayed the AB phenotype. This finding suggests a multiclonal origin of polyps in Gardner syndrome. Studies of tumors originating from such polyps may provide information about the sequence of cellular events leading to malignant transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hsu, S H -- Luk, G D -- Krush, A J -- Hamilton, S R -- Hoover, H H Jr -- 1 R01AI17431-01A1/AI/NIAID NIH HHS/ -- R01 AM 20656-04/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):951-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879192" target="_blank"〉PubMed〈/a〉
    Keywords: Clone Cells/pathology ; Female ; Gardner Syndrome/enzymology/*genetics/pathology ; Glucosephosphate Dehydrogenase/genetics ; Humans ; Isoenzymes/genetics ; Polyps/enzymology/*genetics ; X Chromosome
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  • 21
    Publication Date: 1983-04-01
    Description: The tissue culture condition that is required for the type of chromosome breakage seen at most fragile sites, namely, the absence of folic acid and thymidine in the medium, greatly enhanced micronucleus formation in proliferating lymphocyte cultures from normal individuals. This suggests that chromosome breakage at fragile sites and the apparently spontaneous damage that gives rise to micronuclei are controlled by the same mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacky, P B -- Beek, B -- Sutherland, G R -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):69-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828880" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Cell Nucleus/drug effects/ultrastructure ; Cells, Cultured ; Child ; *Chromosome Aberrations ; Chromosome Fragile Sites ; *Chromosome Fragility ; Culture Media ; Dose-Response Relationship, Drug ; Female ; Folic Acid/pharmacology ; Humans ; Lymphocytes/ultrastructure ; Male ; Middle Aged ; Thymidine/pharmacology
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-12-23
    Description: Treatment of nonpolar ether extracts of human female blood with mild alkali produced more immunoassayable estradiol than the unhydrolyzed extract. Analysis of the serum extracts showed that the substance which released immunoreactive estradiol after hydrolysis has chromatographic properties identical to those of fatty acid esters of estradiol esterified at carbon 17. The physiological role of these previously unknown endogenous esters might be inferred from their structural similarity to synthetic drugs used therapeutically for their prolonged estrogenic action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janocko, L -- Hochberg, R B -- CA29591/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1334-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6419346" target="_blank"〉PubMed〈/a〉
    Keywords: Chromatography, High Pressure Liquid ; Esters ; Estradiol/*analogs & derivatives/blood ; Fatty Acids ; Female ; Humans ; Hydrogen-Ion Concentration ; Hydrolysis ; Male ; Menotropins/pharmacology ; Menstruation ; Radioimmunoassay
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  • 23
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1983 May 20;220(4599):811.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA/genetics ; DNA, Mitochondrial/genetics ; Denmark ; Drosophila/genetics ; Female ; Mice/*genetics ; Muridae/*genetics
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  • 24
    Publication Date: 1983-03-18
    Description: Prelinguistic infants recognized structural correspondences in acoustic and optic properties of synchronized, naturally spoken disyllables, but did so only when they were looking to their right sides. This result suggests that intermodal speech perception is facilitated by rightward orientation of attention and subserved by the left hemisphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacKain, K -- Studdert-Kennedy, M -- Spieker, S -- Stern, D -- HD-01944/HD/NICHD NIH HHS/ -- HD-05407/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 18;219(4590):1347-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828865" target="_blank"〉PubMed〈/a〉
    Keywords: Attention/physiology ; Brain/*physiology ; Female ; Functional Laterality ; Humans ; Infant ; Male ; Speech Perception/*physiology
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-25
    Description: Eggs of the Mexican leaf frog contain blue and yellow pigments identified as biliverdin and lutein, respectively. Both pigments are bound to proteins that occur in crystalline form in the yolk platelet. The major blue pigment is biliverdin IX alpha. The eggs vary in color from brilliant blue to pale yellow-green depending on the amount of each pigment. These pigments may provide protective coloration to the eggs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marinetti, G V -- Bagnara, J T -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):985-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681678" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anura ; Biliverdine/analysis ; Female ; Lutein/analysis ; Ovum/*analysis ; Pigments, Biological/*analysis ; Spectrum Analysis
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  • 26
    Publication Date: 1983-12-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Dec 2;222(4627):998-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648521" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*epidemiology/transmission ; Africa, Central ; Blood ; Europe ; Female ; Haiti ; Homosexuality ; Humans ; Male ; Sarcoma, Kaposi/epidemiology ; United States
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  • 27
    Publication Date: 1983-01-07
    Description: The biologically active fragment ofparathyroid hormone, consisting of residues 1-34, and its in vitro antagonist, fragment 3-34, were administered separately or in combination to chronically thyroparathyroidectomized dogs. These fragments were also studied in vitro with dog renal cortical membranes. Fragment 3-34 inhibited the stimulation of adenylate cyclase by fragment 1-34 in vitro, but had no agonist or antagonistic effects on renal phosphate transport in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGowan, J A -- Chen, T C -- Fragola, J -- Puschett, J B -- Rosenblatt, M -- AM-11714/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):67-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849118" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Cell Membrane/metabolism ; Dogs ; Female ; In Vitro Techniques ; Kidney Cortex/enzymology ; Parathyroid Hormone/*pharmacology ; Phosphates/urine ; Thyroidectomy
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  • 28
    Publication Date: 1983-06-10
    Description: The metastasis of B16 melanoma cells differed significantly in obese (ob/ob) and lean (+/?) female mice of strain C57BL/6J. When the mice were inoculated subcutaneously with melanoma cells at 10 to 11 months of age, the primary tumor grew more slowly in obese than in lean littermates and the frequency of lung metastasis was greatly reduced. When the mice were injected with the cells at 4 to 7 months, the primary tumor grew at the same rate in obese and lean mice, but the obese mice again showed a significantly reduced frequency of lung metastasis. That this effect was related to an enhanced immunocompetence in obese mice was supported by the finding that splenic lymphocytes of ob/ob mice showed three times the proliferative response to the T-cell mitogen concanavalin A compared with the proliferative response of lean control mice. The ob/ob mouse may provide a model for the study of enhanced immunocompetence in obese individuals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, C I -- Kreider, J W -- Black, P L -- Schmidt, T J -- Margules, D L -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1183-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6602379" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Immunity, Innate ; Lung Neoplasms/immunology ; Male ; Melanoma/*immunology ; Mice ; Mice, Inbred C57BL ; *Mice, Obese ; Neoplasm Metastasis ; Neoplasm Transplantation ; Neoplasms, Experimental/immunology ; Rats ; Receptors, Glucocorticoid/physiology ; T-Lymphocytes/*physiology
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Prokaryotic gene control signals can be isolated, compared, and characterized by precise fusion in vitro to the Escherichia coli galactokinase gene (galK), which provides both a simple assay and genetic selection. This recombinant galK fusion vector system was applied to the study of promoters and terminators recognized by the Escherichia coli RNA polymerase. Three promoters created by mutation from DNA sequences having no promoter function were characterized. Mutations that inactivate promoter function were selected, structurally defined, and functionally analyzed. Similarly, transcription termination was examined, and mutations affecting terminator function were isolated and characterized.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, M -- Chepelinsky, A B -- McKenney, K -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):734-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356355" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; DNA, Bacterial/*genetics ; DNA, Recombinant ; DNA-Directed RNA Polymerases/genetics ; Escherichia coli/genetics ; Galactokinase/genetics ; Gene Expression Regulation ; Mutation ; Nucleic Acid Conformation ; *Operon ; *Transcription, Genetic
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  • 30
    Publication Date: 1983-06-10
    Description: The compound 2-phenylethylamine is an "endogenous amphetamine" which may modulate central adrenergic functions. 2-Phenylethylamine is mainly metabolized by monoamine oxidase to form phenyl acetate (PAA). The 24-hour urinary excretion of PAA was measured in normal healthy volunteers and depressed patients. Patients were diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, edition 3. In 70 percent of healthy volunteers of both sexes, the excretion of PAA ranged between 70 and 175 milligrams per 24 hours (mean = 141.1 +/- 10.2). Inpatients with major depressive disorder (unipolar type) (N = 31) excreted less PAA (68.7 +/- 7.0 milligrams per 24 hours) and 55 percent of them excreted less than 70 milligrams per 24 hours; there were no significant differences in the PAA excretion between untreated patients (N = 13) and those treated with antidepressants that were not effective (N = 18). The PAA excretion was reduced to a lesser extent in 35 less severely depressed unipolar outpatients (drug-free for 1 week) (86.3 +/- 11.8 milligrams per 24 hours). These results suggest that low PAA urinary excretion may be a reliable state marker for the diagnosis of some forms of unipolar major depressive disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sabelli, H C -- Fawcett, J -- Gusovsky, F -- Javaid, J -- Edwards, J -- Jeffriess, H -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1187-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857245" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Antidepressive Agents/pharmacology ; Depressive Disorder/*diagnosis/urine ; Female ; Humans ; Male ; Middle Aged ; Phenethylamines/metabolism/physiology ; Phenylacetates/*urine
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  • 31
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-08-19
    Description: The structural gene for group A streptococcal M protein, the fibrillar surface molecule enabling the organism to resist phagocytosis, has been cloned into Escherichia coli. The molecule produced by Escherichia coli is slightly larger than the M protein isolated by solubilization of the streptococcal cell wall, but is similar in size to that secreted by streptococcal protoplast and L forms. Immunologically, the molecule synthesized by Escherichia coli has the same type-specific determinants as the streptococcal M protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, J R -- Fischetti, V A -- AI11822/AI/NIAID NIH HHS/ -- RR05364/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):758-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6192499" target="_blank"〉PubMed〈/a〉
    Keywords: *Antigens, Bacterial ; *Bacterial Outer Membrane Proteins ; Bacterial Proteins/*genetics/immunology ; *Carrier Proteins ; Cloning, Molecular ; Epitopes ; Escherichia coli/*genetics ; Gene Expression Regulation ; Molecular Weight
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  • 32
    Publication Date: 1983-06-24
    Description: Parenteral injection into mice of a toxic pentapeptide isolated from the cyanobacterium Microcystis aeruginosa induced thrombocytopenia, pulmonary thrombi, and hepatic congestion. The lethality of the toxin was unaffected by several anticoagulants. The acute liver damage that follows injection of the toxin has been attributed to direct action on liver cells but may be due to hypoxemia, heart failure, and shock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slatkin, D N -- Stoner, R D -- Adams, W H -- Kycia, J H -- Siegelman, H W -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1383-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bacterial Toxins ; Blood Coagulation Tests ; Cyanobacteria/*metabolism ; Female ; Liver/pathology ; Lung/pathology ; Marine Toxins/*adverse effects ; Mice ; Organ Size/drug effects ; Platelet Count ; Pulmonary Embolism/*chemically induced/microbiology/pathology ; Thrombocytopenia/chemically induced
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  • 33
    Publication Date: 1983-03-25
    Description: Long-term exposure of sexually mature female rhesus monkeys (Macaca mulata) to thrice weekly injections of delta 9-tetrahydrocannabinol resulted in a disruption of menstrual cycles that lasted for several months. This period was marked by an absence of ovulation and decreased basal concentrations of gonadotropin and sex steroids in the plasma. After this period, normal cycles and hormone concentrations were reestablished. These studies demonstrate that in rhesus monkeys subjected to long-term treatment with delta 9-tetrahydrocannabinol tolerance develops to the disruptive effects of the drug on the menstrual cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, C G -- Almirez, R G -- Berenberg, J -- Asch, R H -- R01-2063/PHS HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1453-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6298938" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anovulation/physiopathology ; Dronabinol/*pharmacology ; Drug Tolerance ; Female ; Macaca mulatta ; Menstruation/*drug effects ; Prolactin/blood
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  • 34
    Publication Date: 1983-09-30
    Description: Carbocyclic arabinofuranosyladenine (cyclaradine), a novel nucleoside analog with such desired features as hydrolytic and enzymatic stability, adenosine deaminase resistance, and low systemic toxicity, inhibited the replication of herpes simplex virus types 1 and 2. The 5'-methoxyacetate prodrug form exhibited significant efficacy in the topical treatment of genital infections by herpes simplex virus type 2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vince, R -- Daluge, S -- Lee, H -- Shannon, W M -- Arnett, G -- Schafer, T W -- Nagabhushan, T L -- Reichert, P -- Tsai, H -- CA 23263/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 30;221(4618):1405-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6684328" target="_blank"〉PubMed〈/a〉
    Keywords: Acyclovir/therapeutic use ; Animals ; Disease Models, Animal ; Female ; Guinea Pigs ; Herpes Genitalis/*drug therapy ; Male ; Structure-Activity Relationship ; Vidarabine/*analogs & derivatives/therapeutic use
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  • 35
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Comparison of two closely related primate papovaviruses, simian virus 40 (SV40) and human BK virus (BKV), reveals that the only region of extensive divergence, the tandem sequences adjacent to the origins of DNA replication, is responsible in SV40 for enhancing early gene expression. This study demonstrates a similar enhancer function for the analogous repeated region in BKV. The dissimilarity in sequence of the BKV and SV40 enhancer elements suggests that they may have been acquired since SV40 and BKV diverged. A locus cloned from the human genome homologous to the BKV tandem repeats has been shown to function as low level enhancer element in mammalian cells. These data support the hypothesis that viral enhancer sequences may be evolutionarily related to host cell sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenthal, N -- Kress, M -- Gruss, P -- Khoury, G -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):749-55.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314501" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BK Virus/*genetics ; Base Sequence ; Biological Evolution ; DNA, Viral/*genetics ; Gene Expression Regulation ; *Genes, Regulator ; Humans ; Plasmids ; Polyomavirus/*genetics ; Repetitive Sequences, Nucleic Acid ; Species Specificity
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  • 36
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-14
    Description: A modified cloning method designed to produce differential complementary DNA libraries permits the isolation of sequences that are present in the RNA population of any developmental stage or tissue, but are not present or are much less abundant in another stage or tissue. Selective complementary DNA cloning is especially useful when the differentially expressed RNA's are of low to moderate abundance in the cells in which they occur. A class of cytoplasmic polyadenylated RNA's differentially expressed in gastrula embryos of Xenopus laevis (DG RNA's) has been isolated. These DG RNA's occur very rarely or not at all in unfertilized eggs and blastulae, accumulate as the result of transcription before and during gastrulation, and, with some exceptions, decline in abundance as development proceeds. Many of these RNA molecules appear to be translated at the gastrula stage. Thus, DG RNA's may encode proteins that are important in the process of gastrulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sargent, T D -- Dawid, I B -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):135-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6688681" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular ; DNA/genetics ; Gastrula/*physiology ; Gene Expression Regulation ; Nucleic Acid Hybridization ; Polyribosomes/metabolism ; Protein Biosynthesis ; Transcription, Genetic ; Xenopus laevis/*embryology/genetics
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  • 37
    Publication Date: 1983-01-07
    Description: A model for studying the growth of primary tumors of human endometrium and its regulation by 17 beta-estradiol has been developed in which ovariectomized nude mice are used as recipients. The receptors for sex steroids are maintained during serial transplantation of the tumor in this system. Although the rate of growth of receptor-negative endometrial tumors transplanted into ovariectomized nude mice is unaffected by the sustained presence or absence of estradiol, the growth of receptor-positive tumors is significantly increased by estradiol. Receptor-positive tumors treated with estradiol produced elevated concentrations of progesterone receptor. That the progesterone receptor is functional in this tumor is evident from the induction of estradiol 17 beta-dehydrogenase activity upon progestin administration. These findings are consistent with receptor-mediated regulation of growth of endometrial carcinoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Satyaswaroop, P G -- Zaino, R J -- Mortel, R -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):58-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849115" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/metabolism/*pathology ; Animals ; Castration ; Estradiol/*physiology ; Female ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Receptors, Estrogen/metabolism ; Receptors, Progesterone/metabolism ; Transplantation, Heterologous ; Uterine Neoplasms/metabolism/*pathology
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  • 38
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: Lysogeny, or the presence of temperate bacteriophage, was demonstrated, by means of two Staphylococcus aureus indicator strains, in 11 of 12 strains of S. aureus isolated from patients with toxic shock syndrome. Only 1 of 18 strains of S. aureus that were not associated with toxic shock syndrome showed the presence of bacteriophage. A laboratory strain of S. aureus was lysogenized by bacteriophage from two of the toxic shock-associated strains. These results add support to the theory that lysogeny by one or more bacteriophage in certain strains of S. aureus may be responsible for the pathogenesis of toxic shock syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schutzer, S E -- Fischetti, V A -- Zabriskie, J B -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):316-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6220467" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Toxins/metabolism ; Female ; Humans ; *Lysogeny ; Plasmids ; Shock, Septic/etiology/*microbiology ; Staphylococcal Infections/microbiology ; Staphylococcus Phages/isolation & purification ; *Staphylococcus aureus
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  • 39
    Publication Date: 1983-08-19
    Description: The cerebral metabolic rate for glucose, as measured with positron emission tomography and fluorine-18-labeled 2-deoxy-D-glucose, was significantly higher in four healthy young subjects with trisomy 21 syndrome (Down's syndrome) than the mean rate in healthy young controls. The rate of cerebral glucose utilization in the frontal lobe of a 51-year-old subject with Down's syndrome was significantly lower than the rate in the young subjects with this syndrome, but approximated the rate in middle-aged controls. Thus glucose utilization by the brain appears to be excessive in young adults with Down's syndrome but may decline with age in some brain regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwartz, M -- Duara, R -- Haxby, J -- Grady, C -- White, B J -- Kessler, R M -- Kay, A D -- Cutler, N R -- Rapoport, S I -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):781-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6224294" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age Factors ; Brain/*physiopathology ; Dementia/etiology ; Down Syndrome/complications/*physiopathology ; Female ; Glucose/*metabolism ; Humans ; Male ; Middle Aged
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  • 40
    Publication Date: 1983-06-10
    Description: Hybridization between two chromosomally distinct subspecies of the grasshopper Caledia captiva results in a high incidence of novel chromosomal rearrangements among the backcross progeny. Rearrangements are restricted to those chromosomes derived from the F1 hybrid parent. Chromosomal involvement is nonrandom with the same rearrangement occurring repeatedly in different backcrosses. A single individual can also generate an array of different rearrangements among its offspring. Several of the rearrangements have also been found in natural populations. The nonrandom and recurrent nature of these chromosomal mutations at high frequencies provides a plausible explanation for the establishment and fixation of chromosomal rearrangements in natural populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shaw, D D -- Wilkinson, P -- Coates, D J -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1165-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407107" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Chromosomes/*physiology ; Drosophila melanogaster ; Female ; Genetic Variation ; Grasshoppers/*genetics ; *Hybridization, Genetic ; Male ; *Mutation
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  • 41
    Publication Date: 1983-04-15
    Description: Hippocampal ablation has no effect on the acquisition of the rabbit's classically conditioned nictitating membrane response. Systemic administration of scopolamine, which alters hippocampal neuronal activity, severely retards acquisition of the conditioned response in normal animals and those with cortical ablations. In animals with hippocampal ablations, however, scopolamine has no effect on conditioning. These findings suggest that altered neuronal activity in the hippocampus is more detrimental to conditioning than removing the structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Solomon, P R -- Solomon, S D -- Schaaf, E V -- Perry, H E -- MH33381/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):329-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836277" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning, Classical/drug effects/*physiology ; Female ; Hippocampus/drug effects/*physiology ; Male ; Nictitating Membrane/physiology ; Rabbits ; Scopolamine Hydrobromide/pharmacology
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  • 42
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-27
    Description: Amiloride inhibited the ouabain-sensitive rate of oxygen consumption (QO2) of a suspension of rabbit intact proximal tubules in the presence of different concentrations of extracellular sodium. Measurements of the ouabain-sensitive QO2 in the presence of nystatin, the tissue sodium and potassium contents of the tubules in suspension, and the sodium- and potassium-dependent adenosinetriphosphatase (Na,K-ATPase) activity of lysed tubule membranes indicated that the effect of amiloride was due to a direct inhibition of the Na,K-ATPase activity of the proximal tubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soltoff, S P -- Mandel, L J -- AM26816/AM/NIADDK NIH HHS/ -- GM29256/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):957-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302840" target="_blank"〉PubMed〈/a〉
    Keywords: Amiloride/*pharmacology ; Animals ; Dose-Response Relationship, Drug ; Female ; Ion Channels/drug effects ; Kidney Tubules, Proximal/drug effects/*enzymology ; Nystatin/pharmacology ; Ouabain/pharmacology ; Oxygen Consumption/drug effects ; Pyrazines/*pharmacology ; Rabbits ; Rats ; Sodium/metabolism ; Sodium-Potassium-Exchanging ATPase/*antagonists & inhibitors/metabolism
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  • 43
    Publication Date: 1983-08-19
    Description: A genomic clone consisting of the Moloney leukemia proviral genome with moderately repetitive mouse sequences was microinjected into the pronucleus of a mouse zygote. An animal was derived that carried multiple copies of proviral DNA in a tandem array. No evidence for homologous recombination was obtained. The viral genome was expressed in this animal and was transmitted as a single unit to its offspring. Subsequent breeding studies revealed that the proviral DNA had integrated on an X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, C -- Harbers, K -- Jahner, D -- Jaenisch, R -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):760-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6683871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/physiology ; Female ; Gene Expression Regulation ; Genes, Viral ; Mice ; Microinjections ; Moloney murine leukemia virus/*genetics ; Recombination, Genetic ; Sex Chromosomes/*physiology ; X Chromosome/*physiology
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  • 44
    Publication Date: 1983-09-16
    Description: Cigarette smoking is the major risk factor for the development of pulmonary emphysema, a disorder that may result from an imbalance between the elastase and antielastase levels in the lungs. Decreased functional alpha 1-protease inhibitor, an inhibitor of neutrophil elastase, might render smokers susceptible to elastase-catalyzed destruction of pulmonary elastic fibers and the development of emphysema. Binding and inactivation of isotopically labeled porcine pancreatic elastase and human neutrophil elastase by alpha 1-protease inhibitor were measured in fluid obtained by bronchoalveolar lavage of volunteers. The inhibition of elastase-catalyzed solubilization of elastin and a tripeptide substrate were also determined. The mean level of functional alpha 1-protease inhibitor in the bronchoalveolar lavage fluid of smokers was found to be equal to or greater than that of nonsmokers, contradicting reports by other investigators. Increased elastase derived from pulmonary neutrophils, rather than decreased functional alpha 1-protease inhibitor, appears to be the main factor in the genesis of emphysema in smokers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, P J -- Calore, J D -- McGowan, S E -- Bernardo, J -- Snider, G L -- Franzblau, C -- HL-19717/HL/NHLBI NIH HHS/ -- HL-25229/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1187-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612333" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Bronchi/*metabolism ; Female ; Humans ; In Vitro Techniques ; Male ; Neutrophils/metabolism ; Protease Inhibitors/*metabolism ; Pulmonary Alveoli/*metabolism ; *Smoking
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-09
    Description: The structures of three proteins that regulate gene expression have been determined recently and suggest how these proteins may bind to their specific recognition sites on the DNA. One protein (Cro) is a repressor of gene expression, the second (CAP) usually stimulates gene expression, and the third (lambda repressor) can act as either a repressor or an activator. The three proteins contain a substructure consisting of two consecutive alpha helices that is virtually identical in each case. Structural and amino acid sequence comparisons suggest that this bihelical fold occurs in a number of proteins that regulate gene expression, and is an intrinsic part of the DNA-protein recognition event. The modes of repression and activation by Cro and lambda repressor are understood reasonably well, but the mode of action of CAP is still unclear.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takeda, Y -- Ohlendorf, D H -- Anderson, W F -- Matthews, B W -- GM20066/GM/NIGMS NIH HHS/ -- GM28138/GM/NIGMS NIH HHS/ -- GM30894/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1020-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6308768" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chemical Phenomena ; Chemistry ; *DNA Helicases ; DNA-Binding Proteins ; Escherichia coli/genetics ; Gene Expression Regulation ; Models, Chemical ; Protein Conformation
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  • 46
    Publication Date: 1983-01-14
    Description: Quantitative analysis of Golgi-stained neurons in the preoptic area of the brain of prepuberal Macaca fascicularis monkeys indicated structural differences between males and females. Neurons of males had more dendritic bifurcations and a higher frequency of spines. The bifurcation difference appeared in all cell types and was concentrated in the ventrolateral preoptic area. The spine difference was greatest in the central region of the preoptic area. No differences in gross measurements of this brain region were found. These results suggest that sexual dimorphism in the function of the monkey preoptic area may be based on differences in neuronal structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ayoub, D M -- Greenough, W T -- Juraska, J M -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):197-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849133" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dendrites/ultrastructure ; Female ; Macaca/*anatomy & histology ; Macaca fascicularis/*anatomy & histology/growth & development ; Male ; Preoptic Area/*cytology ; *Sex Differentiation
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  • 47
    Publication Date: 1983-10-28
    Description: Burkitt lymphoma cells carrying either a rearranged or unrearranged c-myc oncogene were examined with the use of probes from the 5' exon and for the second and third exon of the oncogene. The results indicate that the normal c-myc gene on chromosome 8 and the 5' noncoding and 3' coding segments of the c-myc oncogene separated by the chromosomal translocation are under different transcriptional control in the lymphoma cells. Burkitt lymphoma cells carrying a translocated but unrearranged c-myc oncogene express normal c-myc transcripts. In contrast, lymphoma cells carrying a c-myc gene rearranged head to head with the immunoglobulin constant mu region gene express c-myc transcripts lacking the normal untranslated leader.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉ar-Rushdi, A -- Nishikura, K -- Erikson, J -- Watt, R -- Rovera, G -- Croce, C M -- CA09171/CA/NCI NIH HHS/ -- CA10815/CA/NCI NIH HHS/ -- CA16685/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):390-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6414084" target="_blank"〉PubMed〈/a〉
    Keywords: Burkitt Lymphoma/*genetics ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 19-20 ; Chromosomes, Human, 6-12 and X ; Gene Expression Regulation ; Genes ; Humans ; Immunoglobulin Heavy Chains/genetics ; *Oncogenes ; Operon ; Transcription, Genetic ; Translocation, Genetic
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  • 48
    Publication Date: 1983-08-05
    Description: A decreased noradrenaline turnover in the hypothalami of rats was observed at the peak of the immune response to sheep red blood cells. The decrease in noradrenergic neuronal activity was mimicked by injection of soluble r mediators released by immunological cells activated in vitro. Noradrenaline also tended to decrease in the brainstem but not in the residual brain. It is suggested that products released from activated immunological cells during the immune response may induce the previously described autonomic and endocrine mechanisms that contribute to immunoregulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Besedovsky, H -- del Rey, A -- Sorkin, E -- Da Prada, M -- Burri, R -- Honegger, C -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):564-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867729" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*immunology/physiology ; Brain Stem/immunology/physiology ; Female ; Hypothalamus/immunology/physiology ; *Immunity ; Norepinephrine/*physiology ; Rats ; Sheep/immunology ; Spleen/immunology/physiology
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-03-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, A B Jr -- Mellow, G H -- AI 19015-02/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 11;219(4589):1238-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6402816" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chagas Disease/*immunology ; Female ; Humans ; Lactation ; Pregnancy ; Rheumatoid Factor/*immunology
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  • 50
    Publication Date: 1983-02-25
    Description: The locus for the cellular myc (c-myc) oncogene in humans is located on the region of chromosome 8 that is translocated to chromosome 14 in cells from most undifferentiated B-cell lymphomas. It is shown in this study that the c-myc locus is rearranged in 5 out of 15 cell lines from patients with undifferentiated B-cell lymphomas, and that the rearrangement involves a region at the 5' side of an apparently intact c-myc gene. In at least three patients, this rearranged region appears to contain immunoglobulin heavy chain mu sequences that are located on chromosome 14. The data indicate that this region contains the crossover point between chromosomes 8 and 14. The break point can occur at different positions on both chromosomes among individual cell lines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dalla-Favera, R -- Martinotti, S -- Gallo, R C -- Erikson, J -- Croce, C M -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):963-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6401867" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*physiology ; Cell Differentiation ; Chromosome Mapping ; Gene Expression Regulation ; Genes ; Genetic Linkage ; Humans ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/genetics ; Lymphoma/*genetics ; *Oncogenes ; Recombination, Genetic
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-18
    Description: Adult erythrocyte nuclei of Rana, transplanted and incubated in the cytoplasm of maturing oocytes, direct matured oocytes to form swimming tadpoles. These results demonstrate that nuclei of noncycling and terminally differentiated erythrocytes contain the genes to specify tadpole development, and conditioning these nuclei in the cytoplasm of oocytes leads to a widespread reactivation of dormant genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DiBerardino, M A -- Hoffner, N J -- GM-23635/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):862-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6600520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/physiology ; Erythrocytes/*physiology ; Female ; *Gene Expression Regulation ; Nuclear Transfer Techniques ; Oocytes/*physiology ; Ovum/*physiology ; Rana pipiens/embryology
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  • 52
    Publication Date: 1983-10-28
    Description: Antiserum to a synthetic peptide corresponding to the carboxyl-terminus of the human c-myc protein immunoprecipitated a 48,000-dalton protein from a number of normal and malignant human and mouse cells. The size of the protein is consistent with the potential coding region predicted from the c-myc nucleotide sequence, and is the same for malignant cells carrying either a rearranged or an unrearranged c-myc oncogene. Because c-myc transcripts are expressed at higher levels in malignant than in normal B cells, it appears that an increased level of the c-myc protein rather than a change in the gene product is the relevant factor in determining transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giallongo, A -- Appella, E -- Ricciardi, R -- Rovera, G -- Croce, C M -- CA10815/CA/NCI NIH HHS/ -- CA16685/CA/NCI NIH HHS/ -- CA25685/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):430-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6604943" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*physiology ; Burkitt Lymphoma/*genetics ; Gene Expression Regulation ; Humans ; *Oncogenes ; Peptide Fragments/immunology ; Proteins/immunology/*isolation & purification ; Transformation, Genetic
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Class III genes require multiple cellular factors for transcription by RNA polymerase III; these genes form stable transcription complexes, which in the case of Xenopus 5S genes are correlated with differential expression in vivo. The minimal number and identity of the factors required to form both stable and metastable complexes on three class III genes (encoding, respectively, 5S RNA, transfer RNA, and adenovirus VA RNA species) were determined. Stable complex formation requires one common factor, whose recognition site was analyzed, and either no additional factors (the VA gene), a second common factor (the transfer RNA gene), or a third gene-specific factor (the 5S gene). The mechanism of stable complex formation and its relevance to transcriptional regulation were examined in light of the various factors and the promoter sequences recognized by these factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lassar, A B -- Martin, P L -- Roeder, R G -- CA 24223/CA/NCI NIH HHS/ -- CA 24891/CA/NCI NIH HHS/ -- GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):740-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356356" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA-Directed RNA Polymerases/*genetics ; Eukaryotic Cells/physiology ; Gene Expression Regulation ; Genes ; Humans ; Operon ; RNA Polymerase III/*genetics ; RNA, Ribosomal/genetics ; RNA, Transfer/genetics ; RNA, Viral/genetics ; Transcription Factors/genetics ; *Transcription, Genetic
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-08-12
    Description: Placental and fetal tissues from 46 human pregnancies were cultured and cytogenetically analyzed in an attempt to document the existence of chromosomal mosaicism confined strictly to tissues of extraembryonic origin. In two gestations in which chromosomal mosaicism was found, it was expressed exclusively in placental chorionic cells and was not detected in cells derived from the embryo proper. This demonstration of confined chorionic mosaicism may have implications for the understanding of the fetoplacental unit and for prenatal diagnosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kalousek, D K -- Dill, F J -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):665-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867735" target="_blank"〉PubMed〈/a〉
    Keywords: Amnion/physiology ; Chorion/physiology ; Chromosomes, Human ; Female ; Fetal Blood/physiology ; Fetal Growth Retardation/genetics ; Fetus/physiology ; Humans ; Male ; *Mosaicism ; Placenta/*physiology ; Pregnancy
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-22
    Description: With hemodialysis patients, a high serum ferritin before there was serological evidence of hepatitis B virus infection increased the likelihood that the infection would be persistent. This finding suggested that hepatitis B virus is likely to infect and actively replicate in liver cells with the propensity for increased ferritin synthesis. The virus itself could stimulate the synthesis of ferritin in a cyclic positive feedback mechanism that increases intracellular ferritin concentration and, eventually, intracellular iron. Transformed liver cells have low iron content, do not replicate hepatitis B virus, and require iron for growth. Infected, nonmalignant liver cells could supply iron to the transformed cells and nourish their expansion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lustbader, E D -- Hann, H W -- Blumberg, B S -- CA-06551/CA/NCI NIH HHS/ -- CA-22780/CA/NCI NIH HHS/ -- RR-05539/RR/NCRR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):423-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301008" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma, Hepatocellular/etiology ; Carrier State/blood ; Female ; Ferritins/*blood ; Hepatitis B/*blood/complications ; Hepatitis B Surface Antigens/analysis ; Humans ; Iron/blood ; Liver Neoplasms/etiology ; Male ; Sex Factors ; Transferrin/analysis
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-01-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):42-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849114" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/genetics/*transmission ; Blood Transfusion/adverse effects ; Child ; Child, Preschool ; Female ; Hemophilia A/*complications ; Humans ; Infant ; Infant, Newborn ; Male ; Pregnancy
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  • 57
    Publication Date: 1983-01-07
    Description: The immediate induction of the full complement of maternal behavior in nonpregnant ewes primed with estrogen and progesterone has been obtained after 5 minutes of vaginal-cervical stimulation. A similar period of such stimulation given to recently parturient ewes, after the development of selective bonding to their own lambs, reversed their rejection behavior of alien lambs and produced a state of plasticity in maternal behavior, such that ewes receiving vaginal stimulation would accept and adopt alien lambs. These findings implicate vaginal-cervical stimulation as playing a role in the onset of maternal behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keverne, E B -- Levy, F -- Poindron, P -- Lindsay, D R -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):81-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849123" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Estradiol/pharmacology ; Female ; *Maternal Behavior ; Pregnancy ; Progesterone/pharmacology ; Sheep/*physiology ; Time Factors ; Vagina/*physiology
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  • 58
    Publication Date: 1983-08-12
    Description: Female macaque monkeys self-administered high doses of alcohol (2.9 to 4.4 grams per kilogram per day) for 3 to 6 1/2 months. Amenorrhea, atrophy of the uterus, decreased ovarian mass, and significant depression of luteinizing hormone levels were associated with chronic alcohol intoxication. Reproductive system failure in female primates following self-induced dependence on alcohol parallels the results of clinical studies of alcoholic women.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mello, N K -- Bree, M P -- Mendelson, J H -- Ellingboe, J -- King, N W -- Sehgal, P -- AA 04368/AA/NIAAA NIH HHS/ -- RR-00168-21/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):677-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867739" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*physiopathology ; Amenorrhea/chemically induced ; Animals ; Ethanol/adverse effects ; Female ; Humans ; Luteinizing Hormone/blood ; Macaca ; Menstruation/drug effects ; Ovary/drug effects ; Pituitary Gland, Anterior/drug effects ; Reproduction/*drug effects ; Uterus/drug effects
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  • 59
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-29
    Description: Compared to nonpregnant controls, pregnant mice injected with phenobarbital had lower concentrations of the drug in the plasma but equivalent concentrations in the brain. In spite of the similar concentrations in the brain, the behavioral response to phenobarbital was greater for pregnant than nonpregnant mice. These results suggest that the concentration of phenobarbital in the plasma, which is commonly used as a basis for adjusting phenobarbital dosage during pregnancy, is not an appropriate indicator of the dynamics of the drug.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Middaugh, L D -- Zemp, J W -- Boggan, W O -- AA03532/AA/NIAAA NIH HHS/ -- DA00041/DA/NIDA NIH HHS/ -- DA01750/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):534-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836299" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Chemistry ; Dose-Response Relationship, Drug ; Female ; Humans ; Mice ; Mice, Inbred C57BL ; Motor Activity/drug effects ; Phenobarbital/analysis/*metabolism/pharmacology ; *Pregnancy/drug effects ; Time Factors
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  • 60
    Publication Date: 1983-09-02
    Description: To ascertain whether Huntington's chorea and schizophrenia are associated with specific regional alterations in neurotensin, somatostatin, and thyrotropin-releasing hormone, the concentrations of these putative neurotransmitters were measured by radioimmunoassay in postmortem brain samples from patients with Huntington's chorea or schizophrenia. Compared to 50 patients without psychiatric or neurological disease, the patients with Huntington's chorea showed significantly elevated concentrations of all three neuropeptides in the nucleus caudatus. In the nucleus accumbens somatostatin levels were increased threefold, while in the amygdala thyrotropin-releasing hormone levels were elevated. In contrast, the schizophrenics exhibited reduced levels of thyrotropin-releasing hormone in two frontal cortical regions, reduced somatostatin levels in one frontal cortical area, and increased neurotensin levels in one frontal cortical area. None of the differences between the diseased brains and the controls could be accounted for by differences in age, sex, or time between death and autopsy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nemeroff, C B -- Youngblood, W W -- Manberg, P J -- Prange, A J Jr -- Kizer, J S -- MH-32316/MH/NIMH NIH HHS/ -- MH-33127/MH/NIMH NIH HHS/ -- MH-34121/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):972-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6136092" target="_blank"〉PubMed〈/a〉
    Keywords: Brain/*metabolism ; Brain Mapping ; Female ; Humans ; Huntington Disease/*metabolism ; Male ; Neurotensin/metabolism ; Neurotransmitter Agents/*metabolism ; Schizophrenia/*metabolism ; Somatostatin/metabolism ; Thyrotropin-Releasing Hormone/metabolism
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  • 61
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-27
    Description: Males and females of some mormyrid electric fishes generate electrical pulses that differ in waveform and duration. For one such species, testosterone or dihydrotestosterone induces females and immature males to produce the mature male electric organ discharge which is two times the duration of the female or immature discharge. Estradiol has only a weak effect. For a second species where males and females have similar electric organ discharges, testosterone produces no effect. The data suggest that androgens affect the electric organ itself.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bass, A H -- Hopkins, C D -- New York, N.Y. -- Science. 1983 May 27;220(4600):971-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844924" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dihydrotestosterone/pharmacology ; Electric Organ/drug effects/*growth & development/physiology ; Electrophysiology ; Estradiol/pharmacology ; Female ; Fishes/*growth & development/physiology ; Gonadal Steroid Hormones/*pharmacology ; Male ; *Sex Differentiation/drug effects ; Testosterone/pharmacology
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  • 62
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cairns, J -- Boyle, D -- Frei, E 3rd -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):252, 254, 256.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836271" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Antineoplastic Agents/*therapeutic use ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Leukemia/drug therapy/mortality ; Male ; Neoplasms/*drug therapy/mortality ; United States
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-06
    Description: Plasma obtained from human subjects after exercise and injected intraperitoneally into rats elevated rat rectal temperature and depressed plasma iron and zinc concentrations. The pyrogenic component was heat-denaturable and had an apparent molecular weight of 14,000 daltons. Human mononuclear leukocytes obtained after exercise and incubated in vitro released a factor into the medium that also elevated body temperature in rats and reduced trace metal concentrations. These results suggest that endogenous pyrogen, a protein mediator of fever and trace metal metabolism during infection, is released during exercise.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cannon, J G -- Kluger, M J -- AI 13878/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 May 6;220(4597):617-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836306" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Body Temperature/drug effects ; Female ; Humans ; *Interleukin-1 ; Iron/blood ; Leukocytes/physiology ; Male ; Molecular Weight ; *Physical Exertion ; Proteins/physiology ; Pyrogens/blood/*metabolism ; Rats ; Rats, Inbred Strains ; Zinc/blood
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  • 64
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-09-02
    Description: Development proceeds by way of a discrete yet overlapping series of biosynthetic and restructuring events that result in the continued molding of tissues and organs into highly restricted and specialized states required for adult function. Individual molecules and cells are replaced by molecular and cellular variants, called isoforms; these arise and function during embryonic development or later life. Isoforms, whether molecular or cellular, have been identified by their structural differences, which allow separation and characterization of each variant. These isoforms play a central and controlling role in the continued and dynamic remodeling that takes place during development. Descriptions of the individual phases of the orderly replacement of one isoform for another provides an experimental context in which the process of development can be better understood.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caplan, A I -- Fiszman, M Y -- Eppenberger, H M -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):921-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6348946" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/physiology ; Animals ; Bone Development ; Cartilage/*embryology ; Cell Differentiation ; Creatine Kinase/physiology ; Extracellular Space/physiology ; Gene Expression Regulation ; Humans ; Muscle Contraction ; Muscles/cytology/*embryology ; Myosins/physiology ; Phosphoproteins/physiology ; Proteoglycans/physiology
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  • 65
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-01-14
    Description: In the article "The 1982 Nobel Prize in Physiology or Medicine" (19 Nov., p. 765), the last full sentence in column 2 on page 765 should have read, "In the 1930's, Raphael Kurzrok and Charles Leib at Columbia University discovered that human seminal plasma contracted uterine smooth muscle." In the first sentence of the last paragraph in column 1 on page 768, "Calloway" should have been "Kellaway."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garn, S M -- Larkin, F A -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):112.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849124" target="_blank"〉PubMed〈/a〉
    Keywords: *Calcium, Dietary ; Female ; Humans ; Hypertension/*etiology ; Male
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  • 66
    Publication Date: 1983-04-01
    Description: Dynamic spatial patterns of correlation of electrical potentials recorded from the human brain were shown in diagrams generated by mathematical pattern recognition. The patterns for "move" and "no-move" variants of a brief visuospatial task were compared. In the interval spanning the P300 peak of the evoked potential, higher correlations of the right parietal electrode with occipital and central electrodes distinguished the no-move task from the move task. In the next interval, spanning the readiness potential in the move task, higher correlations of the left central electrode with occipital and frontal electrodes characterized the move task. These results conform to neuropsychological expectations of localized processing and their temporal sequence. The rapid change in the side and site of localized processes may account for conflicting reports of lateralization in studies which lacked adequate spatial and temporal resolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gevins, A S -- Schaffer, R E -- Doyle, J C -- Cutillo, B A -- Tannehill, R S -- Bressler, S L -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):97-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828886" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Electroencephalography ; Evoked Potentials ; Female ; Functional Laterality/*physiology ; Humans ; Male ; Psychomotor Performance/*physiology
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  • 67
    Publication Date: 1983-08-26
    Description: The complete nucleotide sequence of the diphtheria tox228 gene encoding the nontoxic serologically related protein CRM228 has been determined. A comparison of the predicted amino acid sequence with the available amino acid sequences from the wild-type toxin made it possible to deduce essentially the entire nucleotide sequence of the wild-type tox gene. The signal peptide of pro-diphtheria toxin and the putative tox promoter have been identified, a highly symmetrical nucleotide sequence downstream of the toxin gene has been detected; this region may be the corynebacteriophage beta attachment site (attP). The cloned toxin gene was expressed at a low level in Escherichia coli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaczorek, M -- Delpeyroux, F -- Chenciner, N -- Streeck, R E -- Murphy, J R -- Boquet, P -- Tiollais, P -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):855-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6348945" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cloning, Molecular ; Diphtheria Toxin/*genetics ; Escherichia coli/genetics ; Gene Expression Regulation ; Genes ; Genes, Bacterial ; Nucleic Acid Conformation ; Operon
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  • 68
    Publication Date: 1983-12-09
    Description: Antisera to human syncytiotrophoblast microvillous cell surface membranes from different placentas are cytotoxic for lymphocytes from some people but not others, demonstrating the presence of allotypic trophoblast-lymphocyte cross-reactive (TLX) antigens. Exploratory principal components factor analysis, performed on limited data consisting of 300 cytotoxic reactions produced by ten separate trophoblast antisera on a panel of lymphocytes from 30 random donors, suggested the presence of three distinct TLX antigen groupings. It is proposed that such TLX alloantigens are central in establishing maternal recognition and protection of the blastocyst, and that lack of recognition results in implantation failure and spontaneous abortion. These findings are compatible with contemporary results of immunotherapy to prevent recurrent spontaneous abortions, and their implications extend to other conditions of allogeneic coexistence, such as organ transplantation and the tumor-host relationship.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McIntyre, J A -- Faulk, W P -- Verhulst, S J -- Colliver, J A -- New York, N.Y. -- Science. 1983 Dec 9;222(4628):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648525" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Surface/*immunology ; Cross Reactions ; Cytotoxicity, Immunologic ; Female ; Humans ; Lymphocytes/*immunology ; Maternal-Fetal Exchange ; Pregnancy ; Trophoblasts/*immunology
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  • 69
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morton, J F -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):122.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623061" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Life Style ; *Longevity ; Male ; Sex Factors
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  • 70
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):436, 438.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867719" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome ; Female ; Humans ; Male ; National Institutes of Health (U.S.) ; Research Support as Topic ; United States
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  • 71
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):32-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857260" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Death ; Female ; Humans ; Male ; Mandatory Programs ; Middle Aged ; Tissue Donors ; *Tissue and Organ Procurement ; *Transplantation ; United States ; tissue are revolutionizing organ transplantation, but the current shortage of ; donated organs is expected to worsen. The reasons for this shortage and possible ; solutions to the problem are discussed briefly, and the ethical and legal ; implications of salvaging organs from brain-dead patients are mentioned. Presumed ; consent laws, already in force in several European countries, would drastically ; increase the number of available organs, but American ethicists are divided over ; a policy permitting automatic use of organs unless a person has left explicit ; instructions to the contrary.
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  • 72
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):441.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6408734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Fetus/*surgery ; Haplorhini ; Humans ; Neural Tube Defects/*surgery ; Pregnancy
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  • 73
    Publication Date: 1983-05-27
    Description: Male hybrids from a cross between female mice of strain C57BL/6Kh and males of strain DBA/2J lived longer after injection of P815 mastocytoma cells of DBA/2 origin than did their female siblings. Responses to the histocompatibility antigen on the X chromosome of the DBA/2 strain may be involved in resistance to the tumor. When the female parent was replaced with a C57BL/6Kh carrying one of several mutations in the H-2 region, this sex effect disappeared in some of the hybrid combinations. Thus, the H-2 complex appears to be involved in the regulation of the immune response to the X-linked histocompatibility antigen in this tumor model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kwak, L W -- Kucuk, O -- Melvold, R W -- Williams, R M -- AI-16919/AI/NIAID NIH HHS/ -- CA-27599/CA/NCI NIH HHS/ -- CA-27955/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):959-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6405481" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; H-2 Antigens/*immunology ; Humans ; Immunity, Innate ; Male ; Mast-Cell Sarcoma/*immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Neoplasm Transplantation ; Sex Chromosomes/*immunology ; Sex Factors ; X Chromosome/*immunology
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  • 74
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-01-14
    Description: The trypsin inhibiting activity in the serum of male mice is substantially greater than that in females. In five strains of mice and two large groups of interstrain hybrids this difference ranged from 14 (in ICR mice) to 55 percent (in DBA mice). Castration of males significantly decreased the serum trypsin inhibiting activity, whereas the administration of testosterone restored the activity to its original level. Administration of testosterone to female mice increased the activity to a level similar to that in males of the same strain. Because almost all the change in inhibiting activity occurred in the electrophoretic alpha-1 region, alpha-1 region, alpha-1-antitrypsin is probably responsible for this effect.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kueppers, F -- Mills, J -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):182-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849130" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Castration ; Female ; Male ; Mice ; Sex Differentiation ; Testosterone/*physiology ; Trypsin Inhibitors/*blood
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  • 75
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-18
    Description: Two dozen cellular proto-oncogenes have been discovered to date through the study of retroviruses and the use of gene transfer. They form a structurally and functionally heterogeneous group. At least five distinct mechanisms are responsible for their conversion to active oncogenes. Recent work provides experimental strategies by which many of these oncogenes, as well as oncogenes of DNA tumor viruses, may be placed into functional categories. These procedures may lead to definition of a small number of common pathways through which the various oncogenes act to transform cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Land, H -- Parada, L F -- Weinberg, R A -- CA14051/CA/NCI NIH HHS/ -- CA26717/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):771-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356358" target="_blank"〉PubMed〈/a〉
    Keywords: Gene Expression Regulation ; Genes, Viral ; Humans ; Neoplasms/*etiology/genetics ; *Oncogenes ; Retroviridae/*genetics ; Tissue Distribution ; Transfection
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  • 76
    Publication Date: 1983-02-25
    Description: Four persons developed marked parkinsonism after using an illicit drug intravenously. Analysis of the substance injected by two of these patients revealed primarily 1-methyl-4-phenyl-1,2,5,6-tetrahydropyridine (MPTP) with trace amounts of 1-methyl-4-phenyl-4-propionoxy-piperidine (MPPP). On the basis of the striking parkinsonian features observed in our patients, and additional pathological data from one previously reported case, it is proposed that this chemical selectively damages cells in the substantia nigra.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Langston, J W -- Ballard, P -- Tetrud, J W -- Irwin, I -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):979-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823561" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; Male ; Meperidine/*analogs & derivatives/metabolism ; Opioid-Related Disorders/*complications ; Parkinson Disease, Secondary/*chemically induced/metabolism ; Substantia Nigra/drug effects
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  • 77
    Publication Date: 1983-04-15
    Description: Perceptual sensitivity to a visual target presented in a random continuous sequence of targets and nontargets decreased rapidly over time when stimuli were highly degraded visually but not when moderately degraded or undegraded. Large declines in sensitivity, independent of changes in response criterion, were found after only 5 minutes of observation. These rapid decrements of sensitivity to degraded targets seem to result from demands on the limited capacity of visual attention.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nuechterlein, K H -- Parasuraman, R -- Jiang, Q -- 784040-29867-5/PHS HHS/ -- MH 30911/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):327-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836276" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Attention ; Child ; Discrimination (Psychology) ; Female ; Humans ; Male ; Memory ; Time Factors ; *Visual Perception
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-02-18
    Description: Estrogens and progestins alter electrical and chemical features of nerve cells, particularly in hypothalamus. Temporally, these events follow nuclear receptor occupation by these steroids, although not all effects have been proved to depend on translocation of receptors to the nucleus. Narrowing studies to focus on particular medial hypothalamic cells has been useful for understanding some of the actions of these steroids in brain. The variety of morphological, chemical, and electrical effects allow for a multiplicity in the cellular functions controlled by these hormones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfaff, D W -- McEwen, B S -- HD05751/HD/NICHD NIH HHS/ -- NS07080/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):808-14.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6297008" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*drug effects ; Estrogens/*pharmacology ; Female ; Hypothalamus/physiology ; Nerve Tissue Proteins/biosynthesis ; Neurons/drug effects ; Progesterone/*pharmacology ; Rats ; Receptors, Muscarinic/drug effects ; Receptors, Progesterone/biosynthesis ; Sexual Behavior, Animal/drug effects ; Synaptic Transmission
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  • 79
    Publication Date: 1983-02-18
    Description: Nine new isolates of human T-cell leukemia-lymphoma virus (HTLV) were obtained from cells of seven patients with malignancies of mature T cells and from two clinically normal relatives of a T-cell leukemia patient. These people were from the United States, Israel, the West Indies, and Japan. The virus was detected in the fresh T cells and was isolated from the established T-cell lines. Each isolate is closely related to the first HTLV isolate, and all the new HTLV isolates were transmitted into normal human T cells obtained from the umbilical cord blood of newborns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Popovic, M -- Sarin, P S -- Robert-Gurroff, M -- Kalyanaraman, V S -- Mann, D -- Minowada, J -- Gallo, R C -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):856-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6600519" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cells, Cultured ; Female ; Humans ; Leukemia/*microbiology ; Male ; Retroviridae/growth & development/*isolation & purification ; T-Lymphocytes/*microbiology
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  • 80
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-29
    Description: Pregnant rats received 2-[14C]deoxy-D-glucose (2DG) intravenously on the last day of gestation, and their fetuses were delivered 1 hour later by cesarean section. Fetal brains showed high 2DG uptake spread throughout the accessory olfactory bulb and little or no differential uptake in the main olfactory bulb. These findings demonstrate that functional activity occurs in the accessory olfactory bulb in utero and suggest that the accessory olfactory system may be the pathway by which fetal rats detect the odor quality of their intrauterine milieu.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pedersen, P E -- Stewart, W B -- Greer, C A -- Shepherd, G M -- F32-NS06978/NS/NINDS NIH HHS/ -- NS 16993/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):478-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867725" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain/radionuclide imaging ; Deoxyglucose/metabolism ; Female ; Fetus/*physiology ; Olfactory Bulb/physiology/radionuclide imaging ; Pregnancy ; Rats ; Rats, Inbred Strains ; Smell/*physiology
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  • 81
    Publication Date: 1983-09-23
    Description: Inbred tht strains Fischer 344 (F344) and Buffalo (BUF) differ in serveral physiological and behavioral measures. It was found that the activity of adrenomedullary and regional brain phenylethanolamine N-methyltransferase is at least four times higher in F344 rats than in BUF rats; these strain-dependent differences corresponded directly with the epinephrine content of the medulla-pons and hypothalamus. Conversely, alpha-adrenergic receptor density in brain regions containing phenylethanolamine N-methyltransferase is two to three times lower in F344 rats than in BUF rats; alpha-receptors in frontal cortex (a brain region lacking phenylethanolamine N-methyltransferase activity and epinephrine) are similar in both strains. These findings suggest that strain-dependent differences in alpha-receptors are regulated by inherited differences in presynaptic adrenergic neuronal function in different brain regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perry, B D -- Stolk, J M -- Vantini, G -- Guchhait, R B -- U'Prichard, D C -- DA 02763/DA/NIDA NIH HHS/ -- MH 32842/MH/NIMH NIH HHS/ -- NS 15595/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1297-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310752" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/enzymology ; Animals ; Brain/*metabolism ; Cell Membrane/metabolism ; Cerebral Cortex/enzymology ; Epinephrine/*physiology ; Female ; Hypothalamus/enzymology ; Medulla Oblongata/enzymology ; Phenylethanolamine N-Methyltransferase/metabolism ; Pons/enzymology ; Rats ; Rats, Inbred Strains/*metabolism ; Receptors, Adrenergic/*metabolism ; Receptors, Adrenergic, alpha/*metabolism ; Species Specificity
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  • 82
    Publication Date: 1983-07-29
    Description: Insulin directly inhibits protein phosphorylation in isolated rat liver nuclear envelopes. In the present studies, an antiserum to insulin receptor as well as the plant lectins concanavalin A and phytohemagglutinin mimicked insulin action in isolated nuclear envelopes. These studies suggest that insulin and agents that mimic it may directly regulate nuclear functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Purrello, F -- Burnham, D B -- Goldfine, I D -- AM 06659/AM/NIADDK NIH HHS/ -- AM 26667/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 29;221(4609):462-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6346487" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Concanavalin A/pharmacology ; Female ; Immune Sera ; Insulin/*pharmacology ; Lectins/*pharmacology ; Nuclear Envelope/*drug effects/metabolism ; Phosphorylation ; Phytohemagglutinins/pharmacology ; Rats ; Rats, Inbred Strains ; Receptor, Insulin/*immunology
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  • 83
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-03-25
    Description: Quantitative electron microscopic analysis reveals 2.85 million retinal axons in fetal rhesus monkeys--a number that is more than twice the 1.2 million present in the adult. More than 1 million supernumerary optic axons are eliminated before birth, simultaneously with the segregation of inputs from the two eyes into separate layers of the lateral geniculate nucleus. Selective elimination of optic axons may not only play a role in the segregation of binocular visual connections but, secondarily, may establish the ratio of crossed and uncrossed retinogeniculate projections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rakic, P -- Riley, K P -- EY02593/EY/NEI NIH HHS/ -- RR00168/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1441-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology/ultrastructure ; Female ; Fetus/physiology ; Macaca mulatta ; Optic Nerve/*embryology/ultrastructure ; Pregnancy ; Retina/*embryology/ultrastructure
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-05-27
    Description: Deoxyglucose labeled with carbon-14 was used in studying the utilization of glucose in the suprachiasmatic nuclei of fetal rats. The results showed that an entrainable circadian clock is present in the suprachiasmatic nuclei during fetal development and that the maternal circadian system coordinates the phase of the fetal clock to environmental lighting conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reppert, S M -- Schwartz, W J -- 1 K07 NS 00672/NS/NINDS NIH HHS/ -- HD 14427/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):969-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844923" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Circadian Rhythm ; Darkness ; Female ; Fetus/*physiology ; Gestational Age ; Glucose/metabolism ; Lighting ; *Maternal-Fetal Exchange ; Pregnancy ; Rats ; Suprachiasmatic Nucleus/metabolism
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  • 85
    Publication Date: 1983-07-22
    Description: Isolated umbilical arteries and veins, obtained from normal women at the end of pregnancy, were incubated in krebs-Ringer bicarbonate solution and exposed to magnesium at concentrations ranging from 0 to 9.6 millimoles per liter. The basal tension of the vessels increased when magnesium was withdrawn and decreased when the concentration of magnesium was raised. Absence of magnesium in the medium significantly potentiated the contractile response of the vessels to bradykinin, angiotensin II, serotonin, and prostaglandin F2 alpha. It appears that magnesium deficiency may be responsible for spasms of umbilical and placental vasculature. Our findings may provide a rationale for why magnesium sulfate is an effective therapy in preeclamptic syndromes in pregnant women.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Altura, B M -- Altura, B T -- Carella, A -- HL 18015/HL/NHLBI NIH HHS/ -- HL 29600/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 22;221(4608):376-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6867714" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Fetal Growth Retardation/*etiology ; Humans ; Hypertension/*etiology ; Magnesium Deficiency/*complications ; Pre-Eclampsia/*etiology ; Pregnancy ; Pregnancy Complications, Cardiovascular/*etiology ; Spasm/etiology ; Umbilical Arteries/physiopathology ; Umbilical Cord/*blood supply/physiopathology ; Umbilical Veins/physiopathology ; Vasoconstrictor Agents/pharmacology
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  • 86
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-12-02
    Description: Almost 40,000 selected seventh-grade students from the Middle Atlantic region of the United States took the College Board Scholastic Aptitude Test as part of the Johns Hopkins regional talent search in 1980, 1981, and 1982. A separate nationwide talent search was conducted in which any student under age 13 who was willing to take the test was eligible. The results obtained by both procedures establish that by age 13 a large sex difference in mathematical reasoning ability exists and that it is especially pronounced at the high end of the distribution: among students who scored greater than or equal to 700, boys outnumbered girls 13 to 1. Some hypothesized explanations of such differences were not supported by the data.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benbow, C P -- Stanley, J C -- New York, N.Y. -- Science. 1983 Dec 2;222(4627):1029-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648516" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; *Cognition ; Female ; Humans ; Male ; *Mathematics ; Sex Factors ; United States
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: Dopamine was transformed into a redox chemical system for delivery to the brain. The lipoidal form allowed penetration of the blood-brain barrier. Oxidative and hydrolytic processes then transformed the delivery form into a quaternary ammonium precursor of dopamine. The quaternary ammonium precursor was rapidly eliminated from the general circulation, whereas that formed in the brain was locked in, thereby providing a significant and sustained brain-specific dopaminergic activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bodor, N -- Simpkins, J W -- GM 27167/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):65-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857264" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apomorphine/metabolism ; Blood-Brain Barrier ; *Brain Chemistry ; Delayed-Action Preparations ; Dopamine/*administration & dosage/analysis/metabolism ; Female ; Male ; Oxidation-Reduction ; Prolactin/blood ; Rats
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  • 88
    Publication Date: 1983-02-25
    Description: Although a constitutional chromosomal deletion including 13q14 has been found to date in all retinoblastoma patients whose esterase D activity is 50 percent of normal, one female patient has been found who has 50 percent esterase D activity in all normal cells examined but no deletion of 13q14 at the 550-band level. Therefore, she has the smallest constitutional chromosomal deletion within 13q14 that is associated with susceptibility to retinoblastoma. Two stem lines were identified in a retinoblastoma from this patient, and each one had a missing 13 chromosome. No detectable esterase D activity was found in the tumor, indicating that the normal nondeleted 13 chromosome was lost in both stem lines. Thus the data from this patient not only show that there is a total loss of genetic information at the location of the retinoblastoma gene within the tumor, but also imply that recessive genes may play an important role in the development of certain human tumors including retinoblastoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benedict, W F -- Murphree, A L -- Banerjee, A -- Spina, C A -- Sparkes, M C -- Sparkes, R S -- EY-02715/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):973-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6336308" target="_blank"〉PubMed〈/a〉
    Keywords: Child, Preschool ; Chromosome Deletion ; *Chromosomes, Human, 13-15 ; DNA, Neoplasm/genetics ; Female ; Genes, Recessive ; Humans ; Karyotyping ; Retinoblastoma/*genetics
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  • 89
    Publication Date: 1983-03-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enns, M P -- Wilson, M W -- Grinker, J A -- Faust, I M -- Jones, A P -- Friedman, M I -- AM20508/AM/NIADDK NIH HHS/ -- AM27980/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1093-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6681680" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/cytology ; Animals ; Body Weight ; Dietary Fats ; Energy Intake ; Female ; Male ; *Nutritional Physiological Phenomena ; Pregnancy ; *Pregnancy, Animal ; Rats
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  • 90
    Publication Date: 1983-10-07
    Description: An HLA-B7 complementary DNA clone was used as a hybridization probe to analyze the segregation pattern of polymorphic class I restriction fragments in several families whose HLA types had been determined by serological techniques. In one family in which a crossover in the HLA region had occurred, a specific genomic fragment was mapped with respect to the crossover. In another family, a novel genomic fragment present in one child and absent in all other family members was observed. With the exception of this novel fragment, all polymorphic class I fragments observed in this study segregated with a serologically defined parental haplotype, a result consistent with HLA linkage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Erlich, H A -- Stetler, D -- Sheng-Dong, R -- Ness, D -- Grumet, C -- HL29572/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 7;222(4619):72-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6312559" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; DNA Restriction Enzymes ; Female ; Genes, MHC Class II ; HLA Antigens/*genetics ; Humans ; *Major Histocompatibility Complex ; Male ; Pedigree ; Polymorphism, Genetic
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  • 91
    Publication Date: 1983-05-20
    Description: Several isolates of a human type-C retrovirus belonging to one group, known as human T-cell leukemia virus (HTLV), have previously been obtained from patients with adult T-cell leukemia or lymphoma. The T-cell tropism of HTLV and its prevalence in the Caribbean basin prompted a search for it in patients with the epidemic T-cell immune deficiency disorder known as AIDS. Peripheral blood lymphocytes from one patient in the United States and two in France were cultured with T-cell growth factor (TCGF) an shown to express HTLV antigens. Virus from the U.S. patient was isolated and characterized and shown to be related to HTLV subgroup I. The virus was also transmitted into normal human T cells from umbilical cord blood of a newborn. Whether or not HTLV-I or other retroviruses of this family with T-cell tropism cause AIDS, it is possible that patients from whom the virus can be isolated can also transmit it to others. If the target cell of AIDS is the mature T cell as suspected, the methods used in these studies may prove useful for the long-term growth of these cells and for the identification of antigens specific for the etiological agent of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, R C -- Sarin, P S -- Gelmann, E P -- Robert-Guroff, M -- Richardson, E -- Kalyanaraman, V S -- Mann, D -- Sidhu, G D -- Stahl, R E -- Zolla-Pazner, S -- Leibowitch, J -- Popovic, M -- New York, N.Y. -- Science. 1983 May 20;220(4599):865-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601823" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Animals ; Antibodies, Monoclonal/immunology ; Antibodies, Viral/immunology ; Female ; Humans ; Immunity, Cellular ; Male ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/complications/*microbiology/transmission
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  • 92
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-10-21
    Description: Male and female rats exhibit sex differences in binding by serotonin 1 receptors in discrete areas of the brain, some of which have been implicated in the control of ovulation and of gonadotropin release. The sex-specific changes in binding, which occur in response to the same hormonal (estrogenic) stimulus, are due to changes in the number of binding sites. Castration alone also affects the number of binding sites in certain areas. The results lead to the conclusion that peripheral hormones modulate binding by serotonin 1 receptors. The status of the serotonin receptor system may affect the reproductive capacity of an organism and may be related to sex-linked emotional disturbances in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fischette, C T -- Biegon, A -- McEwen, B S -- AM06122/AM/NIADDK NIH HHS/ -- NS06080/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 21;222(4621):333-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623080" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Brain Mapping ; Castration ; Cell-Free System ; Estradiol/*pharmacology ; Female ; Glucosephosphate Dehydrogenase/metabolism ; Kinetics ; Male ; Pituitary Gland/enzymology ; Rats ; Receptors, Serotonin/drug effects/*metabolism ; *Sex Factors
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  • 93
    Publication Date: 1983-01-28
    Description: Transplants of embryonic substantia nigra reinnervated the striatum and were able to sustain intracranial self-stimulation in rats with brain lesions induced by 6-hydroxydopamine. Dopaminergic drugs and alterations in current intensity produced typical changes in response rates. Animals with electrodes implanted into cortical grafts or into the denervated striatum failed to exhibit self-stimulation. These findings suggest that transplanted dopamine neurons convey specific, temporally organized information axonally to the striatum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fray, P J -- Dunnett, S B -- Iversen, S D -- Bjorklund, A -- Stenevi, U -- New York, N.Y. -- Science. 1983 Jan 28;219(4583):416-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849143" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caudate Nucleus/cytology ; Corpus Striatum/*cytology ; Dextroamphetamine/pharmacology ; Dopamine/*physiology ; Female ; Flupenthixol/pharmacology ; Putamen/cytology ; Rats ; Self Stimulation/*physiology ; Substantia Nigra/*transplantation
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  • 94
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-01
    Description: By means of a two-stage promotion protocol in mouse epidermis with 12-O-tetradecanoylphorbol-13-acetate as first-stage promoter and 12-O-retinoylphorbol-13-acetate as second-stage promoter, the effects of the former that are critical and obligatory for tumor promotion were shown to be irreversible in nature for at least 8 weeks. The reversibility of tumor promotion was related to the second stage of promotion, reflecting the reversibility of epidermal hyperplasia induced by 12-O-tetradecanoylphorbol-13-acetate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Furstenberger, G -- Sorg, B -- Marks, F -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):89-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828884" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogens/*pharmacology ; Cell Line ; Epidermis/drug effects ; Female ; Hyperplasia/chemically induced ; Mice ; Mice, Inbred Strains ; Neoplasms, Experimental/chemically induced ; Phorbol Esters/*adverse effects ; Phorbols/*adverse effects ; Precancerous Conditions/chemically induced ; Skin Neoplasms/*chemically induced ; Tetradecanoylphorbol Acetate/*adverse effects ; Time Factors
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  • 95
    Publication Date: 1983-09-02
    Description: Dissociated cell suspensions, prepared from the substantia nigra and septal regions of rat embryos, can be grafted to the depths of the caudate-putamen and hippocampus of aged rats. The grafts were rich in dopamine-containing and acetylcholinesterase-positive neurons and had produced extensive new dopaminergic and cholinergic terminal networks in the host neostriatum and hippocampus, respectively. The intrastriatal dopaminergic grafts were associated with a significant improvement in motor coordination in the aged rats. This result suggests that the intracerebral grafting technique may provide a new tool for exploring the role of dopaminergic and cholinergic deficits in the neurological and behavioral impairments associated with aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gage, N H -- Dunnett, S B -- Stenevi, U -- Bjorklund, A -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):966-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879196" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/physiology ; *Aging ; Animals ; Corpus Striatum/*physiology ; Dopamine/physiology ; Female ; Hippocampus/physiology ; Motor Activity/physiology ; Movement Disorders/physiopathology ; Rats ; Septum Pellucidum/physiology ; Substantia Nigra/physiology/*transplantation
    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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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-07-01
    Description: A temperature-sensitive lethal mutant of Drosophila melanogaster was used to identify an essential cell cycle function that is necessary for the mitotic condensation of heterochromatic but not of euchromatic portions of the genome. This mutant is an allele at a locus (mus-101) identified earlier by the use of mutagen-sensitive mutants. The data suggest that the mutagen-sensitive and repair-defective phenotypes of viable mus-101 mutants result from a disruption in chromosome organization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gatti, M -- Smith, D A -- Baker, B S -- GM23345/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):83-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407113" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; Chromosomes/ultrastructure ; Drosophila melanogaster ; Female ; *Genes ; Heterochromatin/*genetics/physiology ; Male ; Mutation
    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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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-04
    Description: A pseudomemory of having been awakened by some loud noises during a night of the previous week was suggested to 27 highly hypnotizable subjects during hypnosis. Posthypnotically, 13 of them stated that the suggested event had actually occurred. This finding has implications for the investigative use of hypnosis in a legal context.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Laurence, J R -- Perry, C -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):523-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623094" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Female ; Humans ; *Hypnosis ; Male ; *Memory ; Middle Aged ; Personality
    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
    Publication Date: 1983-08-26
    Description: The gene for the Harvey murine sarcoma virus (Ha-MuSV) p21ras protein was fused to the amino-terminal portion of the bacteriophage lambda cII gene on the expression vector pJL6. The fusion was such that transcription was controlled by the well-regulated phage lambda pL promoter, and translation initiated in the cII gene continued in frame into the ras gene sequences that code for p21. When the pL promoter was derepressed, the Escherichia coli cells harboring the fusion plasmid synthesized 23,000-dalton protein, which represented more than 10 percent of the total cellular protein. This protein was chimeric and contained 14 residues, which were specified by the vector; these residues were followed by all of the amino acids that make up Ha-MuSV p21ras except for four residues at the amino-terminal end. The protein appears similar to Ha-MuSV p21ras in that it undergoes immunoprecipitation by monoclonal antibodies directed toward that protein, binds guanosine diphosphate, and is capable of autophosphorylation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lautenberger, J A -- Ulsh, L -- Shih, T Y -- Papas, T S -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):858-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6308763" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Transformation, Viral ; Escherichia coli/genetics ; Gene Expression Regulation ; Molecular Weight ; *Oncogenes ; Plasmids ; Sarcoma Viruses, Murine/enzymology/*genetics ; Viral Proteins/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
    Publication Date: 1983-11-18
    Description: The characteristic chromosomal translocations that occur in certain human malignancies offer opportunities to understand how two gene systems can affect one another when they are accidentally juxtaposed. In the case of Burkitt lymphoma, such a translocation joins the cellular oncogene, c-myc, to a region encoding one of the immunoglobulin genes. In at least one example, the coding sequence of the rearranged c-myc gene is identical to that of the normal gene, implying that the gene must be quantitatively, rather than qualitatively, altered in its expression if it is to play a role in transformation. One might expect to find the rearranged c-myc gene in a configuration that would allow it to take advantage of one of the known immunoglobulin promoters or enhancer elements. However, the rearranged c-myc gene is often placed so that it can utilize neither of these structures. Since the level of c-myc messenger RNA is often elevated in Burkitt cells, the translocation may lead to a deregulation of the c-myc gene. Further, since the normal allele in a Burkitt cell is often transcriptionally silent in the presence of a rearranged allele, a model for c-myc regulation is suggested that involves a trans-acting negative control element that might use as its target a highly conserved portion of the c-myc gene encoding two discrete transcriptional promoters.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leder, P -- Battey, J -- Lenoir, G -- Moulding, C -- Murphy, W -- Potter, H -- Stewart, T -- Taub, R -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):765-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356357" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Burkitt Lymphoma/*genetics ; Cell Transformation, Neoplastic/etiology ; Chromosome Aberrations/*genetics ; Chromosome Disorders ; Chromosome Mapping ; Gene Expression Regulation ; Genes ; Humans ; Immunoglobulins/genetics ; Models, Biological ; Neoplasms/*genetics ; *Oncogenes ; *Translocation, Genetic
    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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  • 100
    Publication Date: 1983-05-13
    Description: A cell-free preparation of the cytoplasm from activated eggs of Rana pipiens induces, in demembranated sperm nuclei of Xenopus laevis, formation of a nuclear envelope, chromatin decondensation, initiation of DNA synthesis, and chromosome condensation. Both soluble and particulate cytoplasmic constituents are required to initiate these processes in vitro. The observed changes resemble processes occurring during fertilization and the mitotic cycle in early amphibian embryos. Therefore, this cell-free system may be useful in biochemical analysis of the interactions of nucleus and cytoplasm that control nuclear behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohka, M J -- Masui, Y -- New York, N.Y. -- Science. 1983 May 13;220(4598):719-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601299" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/*physiology/ultrastructure ; Chromatin/physiology ; Chromosomes/ultrastructure ; Female ; Fertilization ; Male ; Metaphase ; Nuclear Envelope/ultrastructure ; Ovum/*physiology ; Prophase ; Rana pipiens ; Spermatozoa/*physiology/ultrastructure ; Xenopus laevis
    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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