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  • Title: Disturbed gastric motility and pancreatic hormone release in diabetes mellitus.
    Author: Fischer H, Heidemann T, Hengst K, Domschke W, Konturek JW.
    Journal: J Physiol Pharmacol; 1998 Dec; 49(4):529-41. PubMed ID: 10069694.
    Abstract:
    BACKGROUND AND AIMS: The influence of glucose metabolism and postprandial release of glucagon on gastric emptying in diabetes mellitus is still unclear. The aim of this study was to assess the relationship between glucose, insulin and glucagon and alterations of gastric motility in symptomatic diabetic subjects with delayed gastric emptying. METHODS: Scintigraphy for solids and liquids, 13C-acetate breath test, electrogastrography and antral manometry were assessed in 20 symptomatic subjects with diabetes mellitus type II and in 20 healthy controls. Simultaneously, serum glucose, glucagon and insulin levels were determined during the functional studies. RESULTS: Postprandial increase in antral motility and myoelectrical activity were seen in controls, but were missing in the group with diabetes mellitus. Moreover, in the fasting state the dominant frequency instability coefficient observed in healthy individuals and in subjects with diabetes of short (<5 years) duration was significantly reduced in subjects with longer duration of diabetes while the postprandial increase in dominant frequency instability coefficient was missing in all diabetics. Following the standard test meal, serum glucose and plasma glucagon in the diabetics increased to a significantly higher degree when compared to controls. CONCLUSIONS: Symptomatic subjects with delayed gastric emptying present abnormal patterns of gastric motor and electrical activity. Higher than normal postprandial plasma levels of glucagon may, at least in part, be responsible for disturbed gastric motility in non-insulin-dependent diabetic subjects.
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