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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 102 (1980), S. 5697-5699 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 248-249 (May 1997), p. 413-418 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 40 (1984), S. 713-714 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The biosynthetic conversion of a pyrrolizidine alkaloid (heliotrine,IV) to a male moth pheromone (hydroxydanaidal,III) is found to proceed with inversion of configuration at the remaining asymmetric center (C-7).
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0428
    Keywords: Keywords Atherosclerosis ; diabetes ; hyperinsulinaemia ; hypertriglyceridaemia ; plasminogen activator inhibitor-1.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Increased concentrations of plasminogen activator inhibitor type-1 (PAI-1) in blood and attenuated fibrinolytic activity, hypertriglyceridaemia, and insulin resistance are common in subjects with obesity and non-insulin-dependent diabetes mellitus who are at markedly increased risk for coronary artery disease. To clarify potentially causal relationships between these phenomena, we studied JCR:LA-cp rats, animals that are insulin resistant and prone to vasculopathy. Blood and aortas were obtained from lean and corpulent animals at 1, 2, 4, 6, and 9 months of age. The homozygous corpulent rats were hyperinsulinaemic and hypertriglyceridaemic at all ages tested. Increased activity of PAI-1 was present in blood from corpulent animals at 1, 6, and 9 months of age. Positive correlations were observed between blood PAI-1 and both insulin and triglycerides. As judged from results with aortic rings in in vitro culture, the increased PAI-1 in blood was anteceded by increased expression of PAI-1 in arterial walls. Thus, changes indicative of inhibition of the fibrinolytic system capacity precede gross atherosclerosis. [Diabetologia (1998) 41: 141–147]
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 6 (1970), S. 274-278 
    ISSN: 1432-0428
    Keywords: Spontaneous diabetes ; diabetes in mice ; mutation: diabetes ; liver enzymes ; gluconeogenesis ; diet and diabetes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé 7 enzymes hépatiques ont été étudiésin vitro chez les souris diabétiques et contrôles de la souche C 57 BL/Ks, à l'âge de 1, 2, et 4 mois et demi. Avant l'apparition de l'hyperglycémic, une augmentation de la phosphoénolpyruvate carboxykinase et de la glucose-6-phosphatase a été observée chez la sourisdb agée d'un mois. A l'âge de 2 mois, ces souris présentaient une hyper-glycémic, une hyperinsulinémie et une activité accrue de la phosphoénolpyruvate carboxykinase, de la glucose-6-phosphatase, de la fructose-1,6-diphosphatase, de la pyruvate kinase et de la 6-phosphogluconate déhydrogénase. Chez les sourisdb de 4 mois et demi, on a observé des taux normaux d'insulinémie, une hyperglycémic sévère, une activité extrêmement élevée des enzymes de la gluconéogénèse hépatique et extrêmement réduite de ceux de la glycolyse et du cycle des pentoses. Les désordres de ces enzymes ainsi que [ceux du glucose sanguin ont pu être contrôles partielleuent en soumettant les animaux à une restriction alimentaire dès l'âge d'un mois. Des étudesin vivo ont indiqué que l'hyperglycémic résulte, en partie du moins, d'une gluconéogénèse accélérée. L'apparition du diabète chez la souris est discutée à la lumière de ces résultats.
    Abstract: Zusammenfassung Die Bestimmung der Aktivität von 7 Enzymen der glykolytischen und gluconeogenetischen Ketten in Leberextrakten von 1, 2 und 4 1/2 Monate altendb/db Mäusen und normalen Kontrolltieren ergab folgende Resultate: Bei noch normoglykämischendb/db Mäusen im Alter von 1 Monat waren Phosphoenolpyruvat-Carboxikinase und Glucose-6-Phosphatase-Aktivität erhöht. Im Alter von 2 Monaten (manifeste Hyperglykämie und Hyperinsulinämie) waren außer den Schlüsselenzymen der Gluconeogenese auch die Aktivitäten der Pyruvat Kinase und der 6-Phosphogluconat-Dehydrogenase erhöht. Bei 4 1/2 Monate altendb/db Mäusen (schwere Hyperglykämie, zur Norm abgesunkene Plasmainsulinkonzentrationen) waren die Aktivitäten der Schlüsselenzyme der Gluconeogenese stark erhöht und diejenigen der Enzyme der Glykolyse und des Pentose-Shunts erniedrigt. Einschränkung der Nahrungsaufnahme einen Monat nach Geburt verhinderte das Auftreten dieser Veränderungen nur teilweise. Auf Grund vonin vivo Experimenten wird angenommen, daß die Hyperglykämie, zumindestens teilweise, auf verstärkte Gluconeogenese zurückzuführen ist.
    Notes: Summary Seven hepatic enzymes were assayedin vitro in diabetic and control C57BL/Ks mice at 1, 2, and 41/2 month. An elevation in phosphoenolpyruvate carboxykinase and glucose-6-phosphatase was observed before the onset of hyperglycemia in db mice at the age of 1 month. At two months, these mice had hyperglycemia, hyperinsulinemia and high levels of phosphoenolpyruvate carboxykinase, glucose-6-phosphatase, fructose-1,6-diphosphatase, pyruvate kinase and 6-phosphogluconate dehydrogenase. The 4 1/2 month old db mice had normal plasma insulin, severe hyperglycemia, exorbitant amount of hepatic gluconeogenic enzymes and reduced quantity of glycolytic and pentose-phosphate shunt enzymes. The disturbance in enzyme activities and blood sugar was partially controlled by placing the animals on a limited diet beginning at the age of 1 month.In vivo studies indicated that hyperglycemia resulted, at least in part, from an accelerated rate of gluconeogenesis. The development of diabetes in these mice is discussed with reference to these findings.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 50 (1972), S. 1147-1148 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 53 (1975), S. 581-583 
    ISSN: 1432-1440
    Keywords: Aplastic anemia ; acute leukemia ; preleukemia ; cytology ; agar-culture technique ; liquid culture ; reverse transcriptase ; Panmyelopathie ; akute Leukämie ; Präleukämie ; Cytologie ; Agar-Kulturtechnik ; liquid culture ; reverse transcriptase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Unter 44 Patienten mit primärer oder sekundärer Panmyelopathie fanden sich 4 (9%) mit Übergang in eine akute Leukämie. Cytologische Veränderungen, die für eine Präleukämie sprachen, fanden sich im präleukämischen Stadium nicht. Die Möglichkeit, eine Panmyelopathie und eine Präleukämie durch cytologische, cytochemische und cytogenetische Untersuchungen, durch die Agar-Kulturtechnik, die „liquid culture“ und die Bestimmung der „reverse transscriptase“ zu unterscheiden, wird diskutiert.
    Notes: Summary In a group of 44 patients with primary and secondary aplastic anemia, four (9%) developed an acute leukemia. Cytological changes that pointed to a preleukemia were not observed during the preleukemic stage. The possibility is discussed whether a aplastic anemia and a preleukemia can be distinguished by cytological, cytochemical and cytogenetic tests, by agar-culture technique, liquid-culture and determination of reverse transcriptase.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effects of temperature and salinity acclimation on intermediary metabolism in excised gill homogenates from Hemigrapsus nudus were examined. In general, a decrease in salinity was followed by an increase in the oxidation of the substrates glucose-1-14C, acetate-1-14C and glycine-14C to 14CO2. Also, there was an increase in amino acid incorporation into the protein fraction. Both of these metabolic parameters were differentially temperature-sensitive. An enzymic model which may explain the increase in respiration rate observed in several intertidal invertebrates meeting an hypo-osmotic stress is proposed, using data from these experiments and also from the literature.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The oxygen consumption of excised gill tissue from Hemigrapsus nudus was determined in crabs acclimated to two temperatures (5° and 20°C) and two different salinities (30 and 11%). The effects of acute shifts from one acclimation condition to another were also measured. An acute decrease in salinity (30 to 11%) or an acute increase in temperature (5° to 20°C) resulted in an increase in oxygen consumption. Increase in oxygen consumption resulting from an acute decrease in salinity appears to be (1) independent of the crabs' thermal history, and (2) linear, following a 20 min equilibration period. The significance of isolating acute osmotic responses from temperature control is discussed.
    Type of Medium: Electronic Resource
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