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  • Title: Restricted effect of formycin A and non-glucidic nutrients upon insulin release in islets from rats with hereditary or acquired non-insulin-dependent diabetes.
    Author: Giroix MH, Zhang TM, Leclercq-Meyer V, Sener A, Portha B, Malaisse WJ.
    Journal: Acta Diabetol; 1995 Oct; 32(3):198-202. PubMed ID: 8590791.
    Abstract:
    Pancreatic islets isolated from control rats, Goto-Kakizaki rats and adult rats that were injected with streptozotocin during the neonatal period were incubated for two successive period of 90 min each in the presence of D-glucose (11.1 mM) with or without formycin A (1.0 mM), and in the presence of the dimethyl ester of succinic acid (SAD, 10.0 mM) with or without palmitate (1.0 mM). Although formycin A augmented glucose-stimulated insulin release in both control and diabetic rats, it failed to compensate for the impaired secretory response to D-glucose in the latter animals. Likewise, non-glucidic nutrients such as SAD and/or palmitate failed to display a more efficient insulinotropic action, relative to basal insulin output, in diabetic than control rats. These results indicate that both formycin A and non-glucidic nutrients are unable, through their immediate insulinotropic action, to restore a normal output of insulin in islets of animals with inherited or acquired non-insulin-dependent diabetes.
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