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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Molecular Cell Research 1177 (1993), S. 54-60 
    ISSN: 0167-4889
    Keywords: Pancreatic islet ; Parotid cell ; d-Glucose
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    FEBS Letters 255 (1989), S. 175-178 
    ISSN: 0014-5793
    Keywords: (Ketohexokinase, Tumoral islet cell) ; Fructokinase ; Pancreatic islet
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0428
    Keywords: Spontaneous diabetes ; Chinese hamster ; Cricetulus griseus ; Pancreas in vitro ; Insulin secretion in vitro ; Insulin secretion in diabetes ; Prediabetes ; Preclinical diabetes ; Antibodies to insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Nous avons mesuré la sécrétion d'insuline du tissu pancréatiquein vitro en présence de glucose chez 22 hamsters chinois normaux, 6 diabétiques et 8 ayant montré une glucosurie intermittente. Les valeurs obtenues ont été comparées avec l'hyperglycémie et l'insulinémie de ces mêmes animaux avant leur mort. Nous avons observé que la sécrétion insuliniquein vitro était proportionnelle au contenu en insuline du pancréas et au quotient de l'insulinémie divisée par le glucose plasmatique indépendamment de l'état métabolique de l'animal. Pourtant, la sécrétion insuliniquein vitro la plus basse a été observée chez les animaux diabétiques, et la plus élevée chez ceux qui avaient présenté une glucosurie intermittente. La relation possible de ces observations avec les théories actuelles du »pré-diabète« est discutée.
    Abstract: Zusammenfassung Die durch Glucose stimulierte Insulinsekretion wurdein vitro am Pankreasgewebe chinesischer Hamster gemessen und mit den Glucose- und Insulin-Plasmaspiegeln derselben Tierein vivo, sowie mit der Granulierung derer Inselzellen (22 normale, 6 diabetische und 8 zeitweise glykosurischer chinesischer Hamster) verglichen. Es bestand eine direkte Korrelation zwischen Insulinsekretion und Insulingehalt des Pankreas, sowie mit dem Verhältnis Insulin/Glucose im Plasma, ohne Rücksicht auf den Stoffwechsel-Zustand der Tiere. Die niedrigsten Werte wurden allerdings bei den diabetischen Tieren, und die höchstens bei denjenigen mit zeitweiser Glykosurie beobachtet. Die Bedeutung dieser Resultate in bezug auf bestehende Theorien des „Pre Diabetes“ wird diskutiert.
    Notes: Summary Insulin secretion by pancreatic tissuein vitro in response to glucose was related to plasma glucose and plasma insulin levels during life, and to the degree of granulation of the islets of Langerhans in 22 normal, 6 diabetic and 8 intermittently glycosuric Chinese Hamsters. Secretion was directly related to the insulin content of the pancreas and to the ratio of insulin to glucose in plasma, irrespective of the metabolic state of the animal, but was lowest in diabetic animals and highest in those with intermittent glycosuria. The relevance of these findings to current theories concerning “prediabetes” is discussed.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0428
    Keywords: Chinese hamster ; Cricetulus griseus ; endocrine pancreas ; islet of Langerhans ; A-cells ; B-cells ; D-cells ; spontaneous diabetes ; nuclear pores ; plasma membrane ; membrane-associated particles ; glycogen ; ultrastructure ; electron microscopy ; freeze-etching
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The nuclear and plasma membranes of islet cells from non-glycosuric and diabetic Chinese hamsters were examined by freeze-etching. The B-cells of diabetic animals presented a slight increase in the number of nuclear pores and marked alterations in the number, size and distribution of membrane-associated particles in the plasma membrane. In A-cells, identified by the presence of characteristic bundles of coarse filaments in the perinuclear region, a definite increase in the number of nuclear pores was found in the most severely diabetic animals. These preliminary findings point to alterations in the membrane systems as possible determinants for the abnormalities of islet function in diabetes mellitus.
    Type of Medium: Electronic Resource
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