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  • 1980-1984  (7,160)
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  • 1980-1984  (7,160)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nutrition 21 (1982), S. 1-1 
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
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  • 2
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    European journal of nutrition 21 (1982), S. 51-56 
    ISSN: 1436-6215
    Keywords: serum alkaline phosphatase ; ascorbic-acid deficiency ; guinea pigs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Bei Meerschweinchen, die gut mit Vitamin C versorgt sind, findet sich eine lineare Beziehung zwischen der Aktivität der alkalischen Phosphatase im Serum und dem Körpergewicht. Untersuchungen bei Meerschweinchen, in denen durch zwei verschiedene Verfahren (völliger und partieller Entzug) niedrige Ascorbinsäurespiegel herbeigeführt worden waren, zeigten, daß die Aktivität der alkalischen Phosphatase im Serum nicht generell bei Vitamin-C-Mangel erniedrigt ist. Abnahmen der Enzymspiegel im Serum, die sich bei Meerschweinchen nach völligem Entzug von Vitamin C finden, d. h. bei akutem Mangel, sind vermutlich die Folge von Streßfaktoren. Enzyme: Alkaline phosphatase, orthophosphoric monoester phosphohydrolase (EC 3.1.3.1.)
    Notes: Summary Guinea pigs well supplied with vitamin C show a linear relation between serum alkaline phosphatase activity and body weight. Investigations in guinea pigs induced to low ascorbic-acid levels by two different procedures (complete and partial deprivation of vitamin C) demonstrated that the activity of the alkaline phosphatase is not generally decreased in the serum of ascorbic-acid-deficient guinea pigs. Decreases of the serum enzyme levels reported in guinea pigs completely deprived of vitamin C, i.e. in acute deficiency, may be due to stress factors.
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  • 3
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    European journal of nutrition 21 (1982), S. 43-50 
    ISSN: 1436-6215
    Keywords: dietary induced thermogenesis ; direct calorimetry ; postprandial core temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Es wurde die postprandiale Thermogenese von Diäten unterschiedlichen Protein- und Fettanteils an jungen männlichen wachsenden Ratten mit der direkten Kalorimetrie bestimmt. Die postprandiale Thermogenese nach Kontrolldiät, die 30% Kasein enthält, betrug 8,3% der aufgenommenen Bruttoenergie. Nach Austausch der Hälfte des Kasein durch Gelatine erhöhte sich die postprandiale Wärmeabgabe auf 19,3% der aufgenommenen Bruttoenergie. Substitution von Schmalz durch mittelkettige Triglyceride und kombinierte Substitution durch mittelkettige Triglyceride und Gelatine verursachten einen weiteren Anstieg der Thermogenese auf 20,3 % bzw. 22,6% der aufgenommenen Bruttoenergie. Verglichen mit der Kontrolldiät sind diese Differenzen statistisch hoch signifikant. Die postprandiale Thermogenese nach Kasein- und Kasein-Gelatine-haltigen Diäten tritt 2,5 Stunden nach der Nahrungsaufnahme ein und dauert 2–3 Stunden. Die Diäten, die mittelkettige Triglyceride enthalten, rufen 45–90 Minuten nach der Nahrungsaufnahme einen signifikanten Anstieg der Wärmeabgabe hervor, der 2–3 Stunden dauert. Die Kombination von Diätkomponenten mit einer hohen postprandialen Wärmeabgabe führte nicht zu einer additiven Wärmeabgabe. Es bestand eine enge Korrelation zwischen der aufgenommenen Nahrungsmenge und der postprandialen Wärmeabgabe. Die Kerntemperatur der Ratten stieg nach Nahrungsaufnahme der Versuchsdiäten signifikant an. In der postprandialen Phase wurden jedoch keine signifikanten Unterschiede zwischen den vier Versuchsgruppen gefunden. Die Ergebnisse zeigen, daß die postprandiale Wärmeabgabe durch ausgewählte Diätkomponenten signifikant gesteigert werden kann. Die Entwicklung von Diäten mit einer geringen Effizienz der Energieverwertung könnte von Interesse sein für spezielle Diätbehandlungen wie zum Beispiel der Adipositas.
    Notes: Summary The postprandial thermic effect of diets containing different protein and fat moieties was estimated in young male growing rats by direct calorimetric measurements. The postprandial thermogenesis after ingestion of the control diet, which contained 30% of casein, corresponded to 8.3% of the gross energy. After exchange of half the casein by gelatine, the postprandial heat loss increased to 19.3% of the gross energy. Substitution of lard by medium-chain triglycerides and gelatine caused a further increase of thermogenesis to 20.3% and 22.6% of gross energy, respectively. Compared to the control diet, the differences are highly statistically significant. The postprandial heat production after ingestion of the casein and caseingelatine-containing diets occurred 2.5 hours after food intake and lasted about 2–3 hours. The medium-chain triglycerides-containing diets induced 45–90 minutes after food intake a significant increase of the heat production, lasting likewise 2–3 hours. The combination of dietary components with a high postprandial thermogenetic effect did not lead to an additive heat production. A very close correlation could be found between the amount of food intake and the postprandial heat loss. The core temperature of rats increased significantly after ingestion of the experimental diets. In the postprandial state it did not differ between the four experimental groups. The results demonstrate that the postprandial heat loss can be significantly increased by selected dietary components. The development of diets with a lower efficiency of energy utilization could be of interest for special dietary treatments, as for example, in certain states of obesity.
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  • 4
    ISSN: 1436-6215
    Keywords: Blutlipide ; HDL ; LDL ; proteinreiche Ernährung ; Arginin ; Stärke ; Saccharose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The repeatedly reported effect of proteins on lipoprotein metabolism leaves the question if this is caused mainly by the amount or amino acid composition of the protein itself, by the accompanying fat or cholesterol content, or by the contemporary predominant kind of carbohydrate in the diet. We conducted experiments with male rats, feeding them in 6 groups of 20 animals for one year semipurified, cholesterol-free diets with constantly 40 (J−)% fat in all diets, 13 % (I), 20 % (II, III, IV) or 40% (V, VI) protein and complementary carbohydrates (50 % starch, 50 % sucrose). III received sucrose only, IV starch only. VI was given additionally 0.8 % arginine (arg). Rats on 40 % protein exhibited higher total plasma cholesterol levels in comparison to 13 % protein, HDL values were nearly identical in I, II, III, IV, and increased in V and VI. LDL was increased in V, compared to all other groups.Conclusion: The level of dietary protein alone may influence amount and distribution of lipoproteins in rats. LDL may be decreased by addition of arg, HDL remains unchanged. The type of carbohydrate had no influence on HDL or LDL on conditions of our experiment, whereas earlier experiments showed elevation of LDL values with sucrose in comparison to starch if cholesterol was present in the diet.
    Notes: Zusammenfassung In einer Langzeitstudie untersuchten wir die Beeinflußbarkeit des Lipoproteinstoffwechsels der Ratte durch unterschiedlich hohe Proteinzufuhr mit und ohne Argininzusatz und durch unterschiedliche Kohlenhydratträger bei konstantem cholesterinfreiem Fettanteil der Diät (40 J%). Wir konnten nachweisen, daß sich der Plasma-Gesamtcholesterinspiegel mit steigender Proteinzufuhr erhöhte. Die HDL-Cholesterin-Konzentration im Plasma der proteinreich (40 J%) ernährten Tiere war im Vergleich zu den Gruppen mit 13 und 20 % Protein ebenfalls signifikant erhöht. Gesteigert war auch die LDL-Cholesterin-Konzentration bei den proteinreich ernährten Tieren. Dieser Anstieg der LDL bei hohem Proteingehalt trat bei Zusatz von Arginin zur Diät nicht auf. — Die Art des Kohlenhydrats (Saccharose oder Stärke) hatte bei der gewählten Versuchsanordnung keinen Einfluß auf die Zusammensetzung der Lipoproteine.
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  • 5
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    European journal of nutrition 21 (1982), S. 202-213 
    ISSN: 1436-6215
    Keywords: Johannisbrotkernmehl ; Resorption ; Mineralstoffe ; Spurenelemente ; Bilanzversuch
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The effect of carob bean gum (9.5 g/1000 kcal, 4184 kJ) in the daily diet on the absorption of Ca, Fe, Zn und Cu was determined during a 4-week balance study in 2 male and 6 female healthy subjects, aged 19 to 25 years. A normal mixed diet was used, to which carob bean gum was added during food preparation for the last 2 weeks of the study. The absorption of minerals and trace elements was calculated as the difference between dietary intake and fecal excretion. The ingestion of carob bean gum caused a significant reduction in the absorption of Ca, Fe and Zn when compared to the control diet, while the absorption of Cu remained unchanged.
    Notes: Zusammenfassung In einem vierwöchigen Bilanzversuch wurde der Einflu\ von Johannisbrotkernmehl (JBM) in der Nahrung (9,5 g/1000 kcal, 4184 kJ) auf die Resorption von Ca, Fe, Zn und Cu in zwei männlichen und sechs weiblichen gesunden Versuchspersonen im Alter zwischen 19 und 25 Jahren geprüft. Die Versuchsdiät bestand aus einer normalen Mischkost, der während der letzten zwei Wochen der Untersuchung JBM bei der Speisezubereitung zugefügt wurde. Die Resorption der Mineralstoffe und Spurenelemente wurde als Differenz aus Zufuhr mit der Diät und Ausscheidung im Kot berechnet. Die Zufuhr von JBM führte gegenüber der Kontrolldiät zu einer signifikanten Verringerung der Resorption von Ca, Fe und Zn. Die Cu-Resorption blieb unverändert.
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  • 6
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    European journal of nutrition 21 (1982), S. 146-169 
    ISSN: 1436-6215
    Keywords: Süßwaren ; Zucker ; Karies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The dissolution of sugar in the oral cavity was determined by measuring the enhancement of saliva flow and the resulting concentration of sugar after consumption of commercially available sweets as well as some test products. It was found that the dissolving rate of sugar is not a function of the absolute concentration of sugar in the sweets alone; it is determined mainly by the texture, consistency and its typical consuming behaviour as well as by the form in which the sugar is contained in the sweets (as a melt, solution or crystalline).
    Notes: Zusammenfassung Zur Ermittlung des Löslichwerdens von Zucker in der Mundhöhle wurden bei einer Reihe von handelsüblichen Süßwaren sowie Versuchsprodukten die oral auftretenden Zuckerkonzentrationen und der durch den Genuß stimulierte Speichelfluß ermittelt. Es konnte gezeigt werden, daß nicht vom absoluten Gehalt an Zucker in einem Produkt das Maß für das In-Lösung-Gehen allein bestimmt wird. Vielmehr kommen Textur, Konsistenz, Aggregatzustand des Zuckers (Schmelze, Lösung, kristallin) sowie den verzehrstypischen Eigenheiten einer jeden Süßware entscheidende Einflüsse auf das Lösungsverhalten zu.
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  • 7
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    European journal of nutrition 21 (1982), S. 257-265 
    ISSN: 1436-6215
    Keywords: carnitine ; foods ; dietary requirements ; adult ; neonate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Die Oxydation der langkettigen Fettsäuren ist carnitinabhängig. So dringen diese Fettsäuren nur an Carnitin gebunden, d. h. als Acylcarnitin, in die Mitochondrien ein, um dort oxydiert zu werden. Der tierische Organismus deckt seinen Bedarf an Carnitin durch exogene Zufuhr und endogene Synthese. Eine fleischreiche Nahrung führt dem Organismus viel Carnitin zu, während Gemüse, Obst und Getreide relativ wenig davon enthalten. Obwohl es sich um ein relativ kleines Molekül handelt, das in geringer Menge in einem lebenswichtigen Stoffwechselsystem wirkt (die Beta-Oxydation), darf Carnitin nicht als Vitamin angesehen werden, sondern vielmehr als eine Nährsubstanz. Es scheint nämlich nicht unbedingt notwendig zu sein, daß die Ernährung dem erwachsenen Menschen Carnitin zuführt. Der gesunde Organismus kann bei einer ausgeglichenen Ernährungsweise (ausreichende Zufuhr von Lysin und Methionin) seinen Bedarf vollständig selbst decken. Dies um so mehr, als eine Senkung der exogenen Zufuhr von Carnitin eine geringere Ausscheidung über den Harn zur Folge hat. Dem in Nahrungsmittel enthaltenen Carnitin kommt jedoch beim Neugeborenen eine größere Bedeutung zu. Der Übergang vom pränatalen zum postnatalen Leben bewirkt eine Erhöhung des Stellenwertes der Lipide bei der Deckung des Energiebedarfs. Diese Veränderung wird von einem Anstieg des Körpergehalts an Carnitin begleitet, das im wesentlichen durch die Muttermilch zugeführt wird. Zum Abschluß gibt dieser Bericht eine knappe Darstellung der Krankheiten, bei denen sich eine ergänzende Zufuhr von Nahrungs-Carnitin als nützlich erweist.
    Notes: Summary The oxidation of long-chain fatty acids is carnitine-dependent. Indeed, only when they are bound to carnitine, in the form of acyl-carnitines, do fatty acids penetrate into the mitochondria to be oxidized. To meet the need for carnitine, animals depend on both endogenous synthesis and an exogenous supply. A diet rich in meat supplies a lot of carnitine, while vegetables, fruits, and grains furnish relatively little. Although it has a low molecular weight and acts at low doses in a vital metabolic pathway, carnitine should not be considered a vitamin, but rather a nutritive substance. Indeed, it seems that the diet of the adult human need not necessarily furnish carnitine: the healthy organism, given a balanced nutrition (sufficiently rich in lysine and methionine), may well be able to meet all its needs. Furthermore, it seems that a reduction of the exogenous supply of carnitine results in a lowering of its elimination in the urine. However, dietary carnitine is more important during the neonatal period. The transition from fetal to extrauterine life is accompanied by an increased role of lipids in meeting energy needs. This change is accompanied by a rise in the body of the levels of carnitine, which is mainly supplied in the maternal milk. Finally, this review briefly surveys the illnesses in which a dietary carnitine supplement proves useful.
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  • 8
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    European journal of nutrition 21 (1982), S. 77-82 
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Five protein sources, namely, sunflower seed protein concentrate, soy protein concentrate, lupine flour, rice bran flour, and fish protein concentrate, were used to enrich wheat bread. The protein sources were added at 5 % and 10 % levels. Chemical analysis of the enriched bread revealed increase in the protein content by values ranging from 16 to 62 %. Sensoric evaluation included: aroma, crumb colour, crust colour, texture, flavour, and overall acceptability. The mean scores for these characteristics show that the protein sources are favourable supplements especially at 5 % level.
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  • 9
    ISSN: 1436-6215
    Keywords: Kalium und Natrium ; Klinik-Vollkost ; chemische Analyse ; Tabellenwerte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary Our knowledge on the composition of general hospital diets still relates virtually exclusively to calculated values derived from food tables. To find out how relevant these are for the estimation of potassium and sodium contents of the general diet data were chemically analysed and compared to table values. The chemical analysis of daily general diet portions resulted in a mean value of 1.86 g potassium/day in contrast to the calculated mean value of 2.72 g/day. As far as the sodium contents of the general diets are concerned, the picture was reversed (calculated: 3.16 g/day, analysed: 5.20 g/day). These results suggest that only chemical analysis of hospital diets guarantees an adequate supply of potassium and sodium.
    Notes: Zusammenfassung Unser Wissen über den Nährstoffgehalt der Klinikkost beruht fast ausschließlich auf Nahrungsmitteltabellen. Um herauszufinden, wie relevant diese für den Kalium- und Natriumgehalt der Klinik-Vollkost sind, wurden analytische Daten ermittelt und den berechneten gegenübergestellt. Beim Kalium lag der chemisch ermittelte Wert mit 1,86 g/Tag signifikant niedriger als der Tabellenwert (2,72 g/ Tag). Beim Natrium war das Verhältnis umgekehrt (Analysenwert: 5,20 g/Tag, errechneter Wert: 3,16 g/Tag). Diese Befunde sprechen dafür, daß nur eine chemische Analyse der Klinikkost ausreichende Information zur Kalium- und Natriumzufuhr liefert.
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  • 10
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    European journal of nutrition 21 (1982), S. 124-145 
    ISSN: 1436-6215
    Keywords: Malnutrition ; Onkologie ; Ernährungserhebung ; Ernährungstherapie ; Ernährungszustand
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The international literature is reviewed with respect to the malnutrition of oncological patients, its etiology, consequences for the cancer patient, and therapeutical management. The negative influences of oncological diseases and of tumor-therapy strategies on the nutritional status, as well as methods of nutritional assessment are discussed. The different possibilities of nutrition therapy are demonstrated with respect to the individual requirements of the cancer patient.
    Notes: Zusammenfassung Der heutige Stand der Arbeiten über das Thema „Malnutrition onkologischer Patienten“ wird dargestellt im Hinblick auf die Pathogenese der Malnutrition, ihre Folgen für den Krebspatienten und die Möglichkeiten der therapeutischen Beeinflußbarkeit. Die negativen Auswirkungen onkologischer Erkrankungen auf den Ernährungszustand sowie Methoden zur Erhebung des Ernährungszustandes werden diskutiert. In Abhängigkeit von den individuellen Bedürfnissen onkologischer Patienten werden die verschiedenen Formen der Ernährungstherapie vorgestellt.
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  • 11
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    European journal of nutrition 21 (1982), S. 266-271 
    ISSN: 1436-6215
    Keywords: Petersilie ; Gefrierlagerung ; Lecithin ; Phosphatidsäure ; Phospholipase D
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary In non-blanched deep-frozen parsley, the phospholipids are rapidly decomposed by phospholipase D. However, the degradation reactions stop already after a few days, with varying quantities of unchanged lipids remaining depending on the temperature. At −12°C approx. 16 % are retained, at −18°C approx. 25 %, at −24°C approx. 43 % and at −32 °C approx. 82 %. The importance of the lipid-degradation reactions for the quality loss during frozen storage is discussed.
    Notes: Zusammenfassung In nichtblanchierter gefrorener Petersilie werden die Phospholipide mit beträchtlicher Geschwindigkeit durch Phospholipase D abgebaut. Die Abbaureaktionen kommen jedoch bereits nach wenigen Tagen zum Stillstand, wobei je nach der Temperatur mehr oder weniger große Restmengen an unveränderten Lipiden zurückbleiben. Bei −12°C sind dies ca. 16 %, bei −18°C ca. 25, bei −24°C ca. 43 und bei −32°C ca. 82%. Die Bedeutung der Lipidabbaureaktionen für die bei der Gefrierlagerung eintretende Qualitätsverschlechterung wird diskutiert.
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  • 12
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    European journal of nutrition 21 (1982), S. 170-172 
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
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  • 13
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary On the basis of comparative chemical and spectral data, the structure of the major saponin, luzonicoside, from the starfishEchinaster luzonicus has been elucidated as2. This is a further example of a novel class of steroidal cyclic glycoside from starfish of the genusEchinaster. Its structure includes a Δ7, 3β,6β-dioxygenated-23-oxosteroidal moiety, already found in the saponins ofEchinaster sepositus, and a trisaccharide moiety, β-D-galactopyranosyl-(1→2) α-L-arabinopyranosyl-(1→2)-β-D-glucuronopyranosyl, bridging C-3 and C-6 of the steroid.
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  • 14
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    Cellular and molecular life sciences 38 (1982), S. 81-82 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The routine procedure for the isolation of rat liver induces a significant fall in RNA polymerase I and II activities which are rapidly restored to the control levels during perfusion.
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  • 15
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary During the imaginal life of malePolistes wasps, the protein concentration in the haemolymph remained constant. In females, there were 2 groups; one in which this concentration was also stable and another in which it increased. No difference was detected between the haemolymphatic protein level of stylopized males and normal ones. All parasitized females exhibited low haemolymph protein levels similar to those of the low level group.
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  • 16
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    Cellular and molecular life sciences 38 (1982), S. 1202-1204 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In the absence of divalent cations, ionophore A23187 supports low rates of monovalent cations loss (Na+〉K+) from unilamellar liposomes containing the sulfate salts. Monovalent cation efflux is optimal when a pH gradient (interior alkaline) is applied. The maximum observed rate of 0.56 ngion K+·min−1·nmole−1 A23187 is insufficient to account for the rates of K+ efflux induced by the ionophore in mitochondria (150 ngion K+·min−1·nmole−1 A23187). These studies therefore support the concept that A23187 induces loss of K+ from mitochondria by removal of regulating divalent cations from an endogenous K+/H+ exchanger.
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  • 17
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    Cellular and molecular life sciences 38 (1982), S. 1210-1211 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Effect of whole-body radiation at 3 different dose levels on the activity of acid phosphatase was studied in the small intestine of Swiss albino mice. In all the 3 exposure groups the enzyme activity increased significantly at 24 h after irradiation; the time at which the maximum histological damage was seen. With the beginning of recovery the enzyme tended to decrease and gradually approached control values.
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  • 18
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    Cellular and molecular life sciences 38 (1982), S. 1218-1219 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary When noradrenergic transmission was suppressed by 6-OHDA, propranolol or phentolamine callosal fibers developed the same innervation pattern as in normal rats and the density of callosal connections did not increase.
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  • 19
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    Cellular and molecular life sciences 38 (1982), S. 1225-1226 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The occurrence of an anti-Thomsen-Friedenreich-like lectin in the seeds of jackfruit and of its receptordominant disaccharide in an ant egg glycoprotein isdescribed by agar-gel precipitin reactions.
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  • 20
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    Cellular and molecular life sciences 38 (1982), S. 70-71 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The absolute configuration of the title compound, isolated earlier from bull testicular tissue, has been determined to be (2S,3S) by synthesis of the natural diol from L-(+)-tartaric acid.
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  • 21
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    Cellular and molecular life sciences 38 (1982), S. 80-81 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary This paper describes the spectral and magnetic properties of a novel complex, iron(III) tris(monohydrogen phosphito) chloride, obtained unexpectedly by the reaction of ferric chloride, L-valine, and phosphorous acid.
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  • 22
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    Cellular and molecular life sciences 38 (1982), S. 84-85 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Egg implant studies on sheep demonstrate that the relative fitness of resistance genotypes of the sheep blowfly,Lucilia cuprina, changes over time for the 2 insecticides dieldrin and diazinon. The results suggest that selection may occur following exposure of larvae to sub-lethal concentrations and help to explain the relative rates of the development of resistance to dieldrin and diazinon byL. cuprina.
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  • 23
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    Cellular and molecular life sciences 38 (1982), S. 93-94 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The regulation of ethylene synthesis, in relation to the presence of a new cell wall, has been investigated forNicotiana sylvestris leaf protoplasts. It is clear that the production of ethylene is not controlled by the new wall, which has no action on the ethylene formation. The addition of dichlorobenzonitrile to cultivated protoplasts causes the inhibition of wall formation, without any other apparent deleterious effects.
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    Cellular and molecular life sciences 38 (1982), S. 99-100 
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    Notes: Summary Female reptile ticks produce a pheromone which attracts conspecific, and less strongly, non-conspecific males over short distances.
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    Cellular and molecular life sciences 38 (1982), S. 105-106 
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    Notes: Summary Male rats were subjected to sham surgery or total abdominal vagotomy and then subsequently received a chronic i.v. cannula. Vagotomy attenuated the dipsogenic effects of infusions of hypertonic saline and sucrose that were observed in the control rats.
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    Cellular and molecular life sciences 38 (1982), S. 109-111 
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    Notes: Summary Microiontophoretic application of scopolamine and atropine usually induced or increased focal cortical slow waves of under 3 Hz and abolished or decreased focal fast waves of over 6 Hz whereas acetylcholine iontophoresis and electrical stimulation of the mesencephalic reticular formation had the opposite effect, suggesting that focal cortical slow waves may be due to the interruption of cholinergic input from the reticular formation.
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    Cellular and molecular life sciences 38 (1982), S. 1188-1189 
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    Notes: Summary In rats adapted to a 12∶12 h light-dark (LD) schedule, cyclic AMP concentration in the preoptic region showed a L minimum and D maximum. No significant fluctuations were observed in the parietal cortex.
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    Cellular and molecular life sciences 38 (1982), S. 1196-1197 
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    Notes: Summary Human hypoxanthine-guanine phosphoribosyltransferase catalyzes the reaction between IMP and guanine to form hypoxanthine and GMP in the presence of Mg2+ ions and pyrophosphate. The apparent equilibrium constant for this reaction has been determined.
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    Notes: Summary Activity levels of AMP deaminase and adenosine deaminase have been studied in hepatopancreas, foot and mantle tissues ofPila globosa with reference to starvation and aestivation. The activity levels of both enzymes were decreased in all the tissues of aestivating snails while in starved animals AMP deaminase activity was increased, in contrast to the decreased adenosine deaminase activity.
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    Cellular and molecular life sciences 38 (1982), S. 1211-1213 
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    Notes: Summary A human milk whey protein, which aggregates at room temperature and resolubilizes when cooled, was purified by chromatography on hydroxyapatite. The present study demonstrated that the thermosensitive protein is a nonphosphorylated form of β-casein.
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    Cellular and molecular life sciences 38 (1982), S. 1219-1220 
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    Notes: Summary Ultrastructural studies of flagella of spermatozoa of horseshoe crabs revealed that three Asian species (Tachypleus tridentatus, T. gigas andCarcinoscorpius rotundicauda) had a 9+0 axoneme pattern that was different from the usual 9+2 pattern ofLimulus polyphemus. This difference is consistent with the phylogeny of horseshoe crabs.
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    Cellular and molecular life sciences 38 (1982), S. 1224-1225 
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    Notes: Summary Multiple daily amphetamine injections in rats decreased both [3H]agonist as well as [3H]antagonist striatal dopamine receptor binding. Concurrently, these animals exhibited a decrease in striatal dopamine concentration and, paradoxically, an enhancement of behavioral responsivity.
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    Cellular and molecular life sciences 38 (1982), S. 1239-1240 
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    Notes: Summary This study is based on 100 consecutive germ cell tumors of the gonads, received during a 5-year period. Benign teratomas, with totipotent differentiation are the commonest ovarian germ cell tumors, whereas the nullipotent germinomas from the bulk of the testicular tumors. Differentiation in the rapidly proliferating testicular teratomas, occurs in the form of embryoid bodies and organoid structures. From an analysis of the germ cell tumors it is evident that the ovum confers differentiating functions on the zygote, while the spermatozoon confers functions of organization and proliferation. This difference in the behavior of the 2 germ cells is due to local feedbacks within the cortical and medullary zones of the gonads.
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    Cellular and molecular life sciences 38 (1982), S. 1253-1254 
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    Notes: Summary Bromocriptine treatment on either prooestrus or oestrus in female rats did not affect luteal function on the day of dioestrus 1.
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    Cellular and molecular life sciences 38 (1982), S. 1254-1256 
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    Notes: Summary Experimental delay of implantation was induced by ovariectomizing mice on the 4th day after mating. On the 2 days preceding sacrifice, which was on days 7–14 of pregnancy, 3 groups of mice received a s.c. injection of either progesterone (2.0 mg) in oil, oil, or no injection. Progesterone administration significantly reduced the number of blastocysts recovered after flushing excised uteri with culture medium.
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    Cellular and molecular life sciences 38 (1982), S. 1237-1239 
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    Notes: Summary Human and rat sera were assayed for teratogenic activity using a whole rat embryo culture technique. Sera prepared from blood withdrawn 1–5 h after the ingestion of vitamin A capsules caused developmental retardation and craniofacial abnormalities. Control sera permitted normal growth and differentiation.
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    Cellular and molecular life sciences 38 (1982), S. 1245-1246 
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    Notes: Summary Ovaries of the sea urchinHemicentrotus pulcherrimus were extracted with 70% ethanol. The extracts were polarographically assayed for respiration-stimulating activity toward homologous spermatozoa. The data of the bioassay and light microscopic observation on thin sections of the ovaries showed detectable activity only in mature ovaries.
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    Notes: Summary The administration of monosodium glutamate (MSG) at a dose of 4 g/kg in 5-day-old fowl or 5 daily injections of MSG (total dose 20 g/kg) in 1- to 5-day-old fowl did not affect body growth in either male or female domestic fowl. Neither MSG treatment schedule affected either testis weight or the circulating concentration of luteinizing hormone (LH). A small, but significant decrease in the plasma concentration of growth hormone (GH) was observed in female chicks which had received daily MSG injections.
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    Cellular and molecular life sciences 38 (1982), S. 1256-1258 
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    Notes: Summary Attributes of lefthanders and lefthandedness were examined and 3 etiologies of lefthandedness were proposed.
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    Cellular and molecular life sciences 38 (1982), S. 1163-1168 
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    Notes: Abstract This is the last work to have been completed by Karl Ernst Schaefer, who died on December 26th 1981, in Old Lyme, Connecticut. The physiological changes and problems brought on by an excess of carbon dioxide was, for many years, one of the prime research interests of this eminent respiratory physiologist. In the present work, Schaefer explored the physiological limits of diving with varying N2−O2 mixtures. The paper contains a wealth of information relevant to the many still unanswered questions in the field and invaluable suggestions with respect to the course of future research. This work yielded, moreover, some interesting disease models for such disturbances as arrhythmia and bradycardia.
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    Cellular and molecular life sciences 38 (1982), S. 1334-1335 
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    Notes: Summary Potassium cyanide inhibited the lipoxygenase activity of a human platelet cytosolic fraction in a concentration-dependent manner (ID50=2 mM). The inhibition was monitored by spectrophotometry (conjugation of diene bonds at 236 nm), by chromatography (inhibition of formation of 12-hydroperoxy eicosatetraenoic acid) as well as by measuring suppression of oxygen consumption. The lipoxygenase activity of intact platelets was also inhibited by KCN as evidenced by the reduction in 12-hydroxy-eicosatetraenoic acid formation in response to thrombin.
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    Cellular and molecular life sciences 38 (1982), S. 1487-1489 
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    Notes: Summary The genotype difference (dystrophic vs nondystrophic) in the LDH isozymes is observed in kidney. These differences are evident only at birth and at early developmental stages (before the expression of dystrophic symptoms). The tissue specific genotype differences for PK are limited to the thigh muscle (M form) and heart (L form), after the onset of the condition. These differences may reflect the pleiotropic effect of the dy2J locus during the temporal regulation of these and other enzymes implicated in muscular dystrophy (MD).
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    Notes: Summary A computer-based system for collection and analysis of circadian rest-activity data was developed. The system has the advantage of a minimal amount of interface hardware and uses standard laboratory computer equipment permitting easy collection and automatic visualization and analysis of the data. The flexibility of the programs allows manipulation of the presentation format as needed and further refinements of the data analyses are possible.
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    Cellular and molecular life sciences 38 (1982), S. 1499-1499 
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    Cellular and molecular life sciences 38 (1982), S. 1384-1391 
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    Cellular and molecular life sciences 38 (1982), S. 1443-1444 
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    Notes: Summary Several polyoxygenated steroids (1, 2, 3) have been isolated from the marine gorgonianLeptogorgia sarmentosa. One of these (1) is the known guggulsterol III, previously found in the pharmacologically active resin from the treeCommiphora mukul; the others,2 and3, have not been found before in nature, and are closely related to1. During the structural work apparent anomalies in the CMR-spectra of1 were observed.
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    Cellular and molecular life sciences 38 (1982), S. 230-231 
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    Notes: Summary The free radical oxidation of Δ1 and Δ6-tetrahydrocannabinol has been examined by spin trapping techniques and intermediates that would lead to cannabinol have been trapped. The 1st step in the oxidation of Δ1-THC involves the removal of 3-H, while for Δ6-THC, either 2-H or 5-H. Intermediates were isolated which could be pyrolysed to the diene and cannabinol.
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    Cellular and molecular life sciences 38 (1982), S. 232-233 
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    Notes: Summary The volatile constituents of the rectal gland secretion of maleDacus cucurbitae have been shown to contain 2-methoxy-N-3-methylbutyl acetamide together with 2 other amides, 3 pyrazine derivatives and 2-ethoxybenzoic acid. Excised male rectal glands have been demonstrated to elicit strong responses from female melon flies.
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    Cellular and molecular life sciences 38 (1982), S. 1459-1461 
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    Notes: Summary Spermatogenesis is reported to be completely inhibited by 5-thio-D-glucose in mice. In an investigation of this inhibition, testicular lipid constituents, namely, total lipids, phospholipids, triacylglycerol, free and total cholesterol, 3-hydroxy-3-methylglutaryl-coenzyme A reductase and NADPH generators like glucose-6-phosphate dehydrogenase, intubation for 21 days. Significant increase in cholesteryl ester, glucose-6-phosphate dehydrogenase activity and malic enzyme and a decrease in free cholesterol and phospholipids were observed.
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    Cellular and molecular life sciences 38 (1982), S. 249-250 
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    Notes: Summary When exposed to UV-light in the presence of Hoechst 33258, chromosomes ofAllium cepa were progressively photolyzed with increasing length of exposure; they retained their delineated contours, centromeric spots and sometimes secondary constriction bands.
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    Cellular and molecular life sciences 38 (1982), S. 256-257 
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    Notes: Summary High concentrations of bethanechol (10−4 to 10−3 M) were effective stimulants of amylase secretion from the mouse pancreas if incubations are performed in low [ca2+] (0.1 mM) solutions but not if normal Krebs solution (2.56 mM Ca2+) was used. This inhibitory effect of Ca2+ at high secretagogue concentrations did not appear to be mediated through the microtubules or microfilaments.
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    Cellular and molecular life sciences 38 (1982), S. 261-262 
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    Notes: Summary The thermogenic response to injections of noradrenaline at thermoneutrality was substituted by thermogenesis at low ambient temperatures. This demonstrates that noradrenaline-induced heat production is equivalent to physiologically induced nonshivering thermogenesis during cold exposure.
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    Cellular and molecular life sciences 38 (1982), S. 267-270 
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    Notes: Summary Splenic lymphocytes from BALB/c mice pre-immunized with purified tyrosine hydroxylase (TH) were fused with murine myeloma N/1 cells. Supernatants of only 2 from large number of cloned cell hybrids contained an inhibitor of TH.
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    Cellular and molecular life sciences 38 (1982), S. 1493-1494 
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    Notes: Summary Melatonin, given in the drinking-water, induces gonadal atrophy in the male golden hamster maintained in a light/dark cycle (14∶10 h).
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    Cellular and molecular life sciences 38 (1982), S. 1397-1400 
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    Cellular and molecular life sciences 38 (1982), S. 189-192 
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    Cellular and molecular life sciences 38 (1982), S. 198-201 
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    Cellular and molecular life sciences 38 (1982), S. 223-228 
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    Cellular and molecular life sciences 38 (1982), S. 329-330 
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    Notes: Summary In this tropical social wasp the odor of venom elicits an alarm response, reduces the threshold for attack, and acts as an attractant. Attack is released visually; dark colored objects were shown to be more effective releasers than were moving objects.
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    Cellular and molecular life sciences 38 (1982), S. 337-338 
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    Notes: Summary The antibiotic properties of 2 acidic C24H40O4 nor-sesterterpenoid peroxides, prianicin A (1) and B (2), against gram-positive and gram-negative bacteria, and against fungi are herein described. They are 4–10 times more effective than tetracycline againstbeta hemolytic Streptococcus, but significantly non-effective against a variety of gram-negative bacteria.
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    Cellular and molecular life sciences 38 (1982), S. 270-271 
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    Notes: Summary In adrenaline cells, junctional complexes formed by alternating gap junctions and attachment plaques were identified in close proximity to bilateral clusters of mitochondria. It is suggested that this proximity is related to a role of gap junctions in metabolic coupling.
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    Cellular and molecular life sciences 38 (1982), S. 277-278 
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    Notes: Summary Using an indirect fluorescent antibody technique, we detected an α-chymotrypsin-like immunoreactivity, but no trypsin-like immunoreactivity in bovine mast cells.
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    Cellular and molecular life sciences 38 (1982), S. 143-144 
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    Cellular and molecular life sciences 38 (1982), S. 285-297 
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    Notes: Summary Poxviruses comprise a large group of very complex animal DNA viruses which replicate in the cytoplasm of infected cells. Vaccinia virus, the most studied poxvirus, has a linear, double stranded DNA genome with an approximate molecular weight of 120×106 (180 kilobase pairs). The two strands of the DNA molecule are naturally cross-linked at both termini. In addition, the vaccinia virus genome contains very long inverted terminal repetitions of approximately 10 kilobase pairs which are further characterized by the presence of direct tandem repeats of a 70-base-pair sequence arranged in two blocks of 13 and 17 copies, respectively. A central region of the genome is highly conserved between different orthopoxviruses. In contrast, the ends are hypervariable and may contain extensive deletions and complex, symmetrical sequences rearrangements. Vaccinia virus gene expression is divided into two stages. Early in infection, RNA complementary to one half of one strand-equivalent of the genome is transcribed within subviral particles by the virion-associated RNA polymerase. Later in infection, after DNA replication, RNA complementary to one entire strand-equivalent is transcribed. RNA made late in infection is very heterogeneous in length and a large fraction of it contains self-complementary sequences. Late genes are clustered near the central region of the genome. Vaccinia virus mRNAs do not appear to be synthesized by a splicing mechanism.
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    Cellular and molecular life sciences 38 (1982), S. 354-356 
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    Notes: Summary Mouse blastocysts were cultured in the presence of zinc and/or cupric chloride at various concentrations. Cupric ions were superior to Zn++ at inhibiting hatching of blastocysts from their zona pellucida and formation of trophoblastic outgrowths. Protein in the medium protected embryos from the toxic effects of zinc and copper.
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    Cellular and molecular life sciences 38 (1982), S. 360-361 
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    Notes: Summary The size of motor units in rat laryngeal muscles was determined by correlating the number of neurons labeled by i.m. injections of horseradish peroxidase with the number of motor end plates stained for acetylcholinesterase. The cricothyroid has a motor unit size of 8 muscle fibers per motor neuron and the posterior cricoarytenoid 4–5 muscle fibers per motor neuron.
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    Cellular and molecular life sciences 38 (1982), S. 369-370 
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    Notes: Summary The effect of sodium fluoride on H+ ion secretion was investigated in the isolated distended mouse stomach. It was found that sodium fluoride on its own caused dose-related stimulation of H+ ion secretion. Sodium fluoride did not inhibit H+ ion secretion induced by histamine. The possible mechanisms involved are discussed. It is considered that sodium fluoride might stimulate H+ ion secretion by causing histamine release and by increasing cyclic AMP formation in the intact gastric mucosa.
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    Cellular and molecular life sciences 38 (1982), S. 379-380 
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    Notes: Summary 1% β-alanine and α-L-alanine, when given for 7 days as the only drinking fluid, inhibited the exploratory activity of adult male spontaneously-hypertensive rats (SHR)_but not that of the normotensive Wistar-Kyoto rats (WKR). β-Alanine decreased the taurine level in the liver of both strains and in the platelets of SHR. α-Alanine decreased the taurine level in the liver of WKR and in the platelets of SHR.
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    Cellular and molecular life sciences 38 (1982), S. 323-324 
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    Notes: Summary Based on the sample in this study (members of the Spina Bifida Association of America), there are approximately 2.15 times as many mothers with Rh-blood type than would be expected in a similar sized sample of the general population.
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    Cellular and molecular life sciences 38 (1982), S. 333-335 
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    Notes: Summary The hepatopancreas of the garden snail (Helix aspersa) contains basophil cells which produce intracellular granules of CaMgP2O7. A variety of metals are incorporated into these granules either by direct substitution or by the synthesis of new pyrophosphate material.
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    Cellular and molecular life sciences 38 (1982), S. 299-300 
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    Notes: Summary The rate of development of Ruhemann's purple in the ninhydrin reaction of two deuterated primary amines, αα-d2-p-tyramine and αα-d2-β-phenylethylamine, is significantly reduced It appears to be a primary isotope effect and indicates that the cleavage of the carbon-hydrogen bond at the α-position is involved in the rate-determining step of the color reaction.
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    Cellular and molecular life sciences 38 (1982), S. 344-346 
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    Notes: Summary Salmon, calf and human foldback DNAs all exhibited hypermethylation, reduced adenine plus thymine content and an excess of adenine over thymine when compared with their respective native DNAs. The only unusual feature of the base composition of wheat germ foldback DNA was the excess of thymine over adenine.
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    Cellular and molecular life sciences 38 (1982), S. 363-365 
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    Notes: Summary 139 vestibular neurons were analyzed in 38 guinea-pigs after the stimulation of trigeminal fibers: increase or decrease of discharge rate and also rhythmic modulation of vestibular unitary activity were observed.
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    Cellular and molecular life sciences 38 (1982), S. 371-372 
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    Notes: Summary In photoperiodic adult diapause ofDrosophila testacea, the critical daylength fell between 14 and 16 h at 15°C, but between 13 and 14 h at 18°C. None entered diapause at LD 10∶14 and LL at 23°C. This species quantitatively responded to daylengths around the critical daylength in the process of diapause induction. The length of the sensitive period seems to change with temperature.
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    Cellular and molecular life sciences 38 (1982), S. 356-357 
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    Notes: Summary Sonographic analyses of songs and calls of Bonelli's Warbler (Phylloscopus bonelli) show important structural differences between the geographically isolated western (P.b. bonelli) and eastern (P.b. orientalis) populations. Playback experiments in the field and some morphological differences suggest that these populations may be separating into 2 species.
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    Cellular and molecular life sciences 38 (1982), S. 362-363 
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    Notes: Summary A discrete middle band of tonic fibers in the claw closer muscles of lobsters functions as a sub-unit of the slow motor unit in maintaining dactyl posture at a low frequency of firing due to its synaptic properties and strategic location.
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    Cellular and molecular life sciences 38 (1982), S. 365-367 
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    Notes: Summary During the first egg maturation cycle ofCalliphora vicina changes in the vitellogenin titer and yolk polypeptide pattern of the haemolymph are correlated with the intensity of follicular growth, and the rate of yolk deposition.
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    Cellular and molecular life sciences 38 (1982), S. 383-384 
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    Notes: Summary In neonatal rat brain 6 h after s.c. administration of L-cysteine, an increase was observed in most of the amino acids with the exception of glutamic acid, aspartic acid, phenylalanine, sarcosine, glutamine, hydroxyproline and phosphoethanolamine compared to age-matched saline controls. Cysteine was not present at detectable levels in control brain but was found to be 0.38 to 0.52 μmole/g of fresh brain tissue in 2- and 4-day-old rats respectively after cysteine treatment.
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    Cellular and molecular life sciences 38 (1982), S. 393-394 
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    Notes: Summary Cytomegalovirus-like particles were observed in the acinarcells and in the intralobular ducts, of the submandibular gland of the red-backed vole. The particles were target-shaped, had a glycoprotein-positive, electron-dense central core, and the core was surrounded by a protein-rich layer and glycoprotein-positive outer layer.
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    Cellular and molecular life sciences 38 (1982), S. 399-401 
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    Notes: Summary Captopril in vitro (50–500 μg/ml) increased3H-TdR incorporation in unstimulated and mitogen-stimulated cultures of rat lymphocytes. Unseparated spleen and lymph node cells of rats orally treated with captopril (50 mg/kg/day×4) showed decreased basal and mitogen stimulated3H-TdR incorporation. The removal of macrophages abrogated this inhibitory effect. Leucine aminopeptidase activity of macrophages was reduced — in vivo and in vitro — by captopril.
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    Notes: Summary A method giving a high yield for the isolation and purification of the androgen-binding protein (ABP) from the nutritional medium of cultured Sertoli cells from adult rats is described.
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    Cellular and molecular life sciences 38 (1982), S. 434-435 
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    Notes: Summary About 60% of the prolactin receptors were solubilized from rabbit mammary gland membranes by Zwittergent 3–12. The use of Zwittergent 3–12 resulted in increased sensitivity of the receptor assay and permitted use of ovine prolactin instead of human growth hormone in the receptor assay.
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    Cellular and molecular life sciences 38 (1982), S. 437-439 
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    Notes: Summary A method to remove lipids from human plasma high-density lipoprotein (HDL) was developed. The procedure required column chromatography on Sephacryl-200 in the presence of the bile salt sodium deoxycholate. The lipid free protein obtained retained the immunological properties of the native HDL.
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    Cellular and molecular life sciences 38 (1982), S. 445-448 
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    Notes: Summary Ketoconazole, an antimycotic agent, inhibits calcium binding and accumulation, and induces calcium release in sarcoplasmic reticulum. The Mg2+-ATPase and the (Ca2++Mg2+)-ATPase activities are stimulated at low but inhibited at high concentrations of ketoconazole.
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    Cellular and molecular life sciences 38 (1982), S. 454-457 
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    Notes: Summary Various restriction enzymes digest human highly repeated homogeneous DNA to discrete fragments, some of which are present in the male and absent in the female. The male specific 2.4 kilobase HaeIII fragment corresponds to human male satellite DNA IV.
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    Cellular and molecular life sciences 38 (1982), S. 1077-1078 
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    Notes: Summary PGE1 but not PGF2α at 500–1000 μg/kg induced a slow and sparse flow from the parotid and no flow at all from submaxillary glands. Composition of PGE1-induced parotid saliva was quite different from that evoked by any autonomic agonists. The present study suggests that PGE1 might act directly on parotid acinar cells.
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    Cellular and molecular life sciences 38 (1982), S. 1082-1083 
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    Notes: Summary O,p′-DDT injected into adult castrated male quail (Coturnix coturnix japonica) stimulated growth of the proctodeal (foam) gland, a structure that is androgen but not estrogen responsive, indicating that this pesticide constituent, in addition to its known estrogenic actions, is also androgenic.
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    Notes: Summary Piperonyl butoxide, MGK 264 and DEF acted as synergists when used together with endrin and methomyl against the Egyptian cotton leafwormSpodoptera littoralis. The synergistic effect was higher with resistant strains than with the parental strain. The three substances tested as synergists actually antagonized the action of phospholan and cypermethrin on the parental strain, though they had some activity as synergists with these insecticides on resistant strains. The synergistic effect of DEF was higher than that of piperonyl butoxide or MGK 264, particularly on resistant strains.
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    Cellular and molecular life sciences 38 (1982), S. 610-611 
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    Notes: Summary An antiserum was raised in rabbits against a primary metastasizing lymphosarcoma (ML) of the hamster. This was made tumor-specific by absorption with normal hamster tissue extracts. Immunoglobulin-G was prepared and tested for its cytotoxicity towards cells derived from the primary tumor and its liver metastases. The ML-specific IgG was found to be 2–5 times more cytotoxic for cells derived from the primary tumor compared to cells obtained from liver metastases.
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    Cellular and molecular life sciences 38 (1982), S. 612-614 
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    Notes: Summary Skin patches on hibernating and nonhibernating ground squirrels were treated with multiple topical applications of the carcinogen 7,12-dimethylbenza(a)anthracene. Nonhibernators showed blistering, peeling, drying, hair loss, increased vascularization and hyperpigmentation in proportion to DMBA concentration. The latter was apparently due to a) an increased number of dermal and epidermal melanocytes and b) the appearance of melanocytes with large coarse cytoplasmic granules. Notably, hibernators remained free of gross skin changes and were histologically similar to untreated controls.
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    Cellular and molecular life sciences 38 (1982), S. 1093-1095 
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    Notes: Summary 21-day fetal rat pancreata were stained with the unlabeled antibody peroxidase-antiperoxidase technique using bovine pancreatic polypeptide as the primary antibody. Total counts of pancreatic polypeptide cells were made over the entire pancreas. It was found that the head region contained the greatest number of pancreatic polypeptide cells with the body next and the tail having the smallest number. The pancreatic polypeptide cells of the body were concentrated in the portion closest to the distal duodenum. This distribution pattern seems to support the suggested role of pancreatic polypeptide on the physiological function of the digestive tract.
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    Notes: Summary Monoclonal antibodies against the toxic units ofBacillus thuringiensis delta-endotoxin were raised by the hybridoma technique and detected by an indirect enzyme-linked immunosorbent assay (ELISA). Out of 5 positive clones, I was found to secrete antibodies which inactivate the toxin.
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    Cellular and molecular life sciences 38 (1982), S. 1106-1107 
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    Notes: Summary We describe, in mice, a difference in serum cholesterol and adrenal weight associated with an H-2a/H-2b haplotype difference.
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    Cellular and molecular life sciences 38 (1982), S. 536-536 
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    Notes: Summary Catalase was found in all of the free-living species of platyhelminths studied, but could not be detected in any of the parasitic species (trematodes or cestodes).
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    Cellular and molecular life sciences 38 (1982), S. 567-569 
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    Notes: Summary InSchizodactylus monstrosus the total hemocyte count appeared to be much lower during the day than at night. At night, the percentage of prohemocytes and spherule cells increased substantially over that of granular hemocytes, plasmatocytes and adipohemocytes. The percentage of sessile hemocytes was much higher during the day. Hemogram rhythmicity was much affected in decapitated insects; altered photoperiod had little effect on it.
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    Cellular and molecular life sciences 38 (1982), S. 598-599 
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    Notes: Summary Intracerebroventicular (i.c.v.) administration of des-Tyr1-γ-endorphin (0.1 and 1.0 μg) caused a decrease of the serotonin (5-HT) concentration of the hippocampus. The concentration of 5-HIAA and the pargyline-induced alterations in 5-HT and 5-HIAA were not affected. No effects were noticed in other brain regions.
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    Cellular and molecular life sciences 38 (1982), S. 529-531 
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    Notes: Summary Glycozoline and girinimbine isomers (IV andVII) were synthesized and their activity against 2 bacterial strains, viz.E. coli andS. aureus, and 2 fungal strains, viz.C. albicans andA. niger were studied. The hydroxy synthons (III) were also tested.
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    Notes: Summary 1-β-D-Arabinofuranosyl cytosine-5′-triphosphate (araCTP), an inhibitor of DNA synthesis, paradoxically enhanced unscheduled DNA synthesis (USD) induced by bleomycin in permeable mouse sarcoma cells. A greater enhancing effect of araCTP on bleomycin-induced USD was observed with lower concentrations of dCTP in the assay mixture. USD measured without bleomycin in nuclei isolated from mouse sarcoma cells was not enhanced, but inhibited by araCTP.
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    Cellular and molecular life sciences 38 (1982), S. 661-662 
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    Notes: Summary The integrated rate equations for any number of consecutive pseudo first-order reactions A→B→... are given for the case in which the rate constants are all identical. The general solution coincides with the description of a Poisson process, and therefore may be more widely applicable to the kinetics of morphological alterations or other cellular processes than previously supposed.
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    Cellular and molecular life sciences 38 (1982), S. 662-663 
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    Notes: Summary A naturally-occurring case of terminal translocation resulting into end-to-end association of somatic chromosomes, and mitotic anaphase movement without chromatid separation in a variety ofLathyrus sativus is reported.
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