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Gastric emptying in Type II (non-insulin-dependent) diabetes mellitus before and after therapy readjustment: no influence of actual blood glucose concentration

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Abstract

Aims/hypothesis. Hyperglycaemia that is induced short-term slows gastric emptying in healthy subjects and patients with diabetes mellitus. Little information is available on the impact of longer-lasting, naturally occurring blood glucose increases and their reduction to euglycaemic values. We studied the relation between gastric emptying and pre-prandial and postprandial blood glucose concentrations in patients with Type II (non-insulin-dependent) diabetes mellitus and secondary failure to respond to oral hypoglycaemic treatment (a) before readjusting hypoglycaemic therapy and (b) 1 week thereafter.¶Methods. We studied 9 female and 1 male patient (age 60–78 years, BMI 21.9–32.5 kg/m2, diabetes duration 3–33 years, HbA1 c 8.8–13.2 %). Gastric emptying of a radiolabelled semisolid 1168 kJ meal was recorded scintigraphically.¶Results. Blood glucose concentration pre-prandial and postprandial was considerably lower subsequent to than before therapy readjustment in all patients (fasting, 7.9 mmol/l ± 1.5 SD vs 11.7 ± 1.7 mmol/l; 60 min postprandial, 11.7 ± 2.0 vs 15.4 ± 2.2 mmol/l). By contrast, gastric emptying was unchanged (residual radioactivity in stomach 50 min postprandial 65.7 ± 14.1 % vs 66.5 ± 12.9 %). There was no relation between emptying and either fasting blood glucose concentration or its postprandial increase.¶Conclusion/interpretation. The data do not support a major impact of actual, longer-lasting, naturally occurring blood glucose concentrations upon the rate of gastric emptying in patients with Type II diabetes. [Diabetologia (1999) 42: 1410–1412]

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Received: 28 April 1999 and in revised form: 23 July 1999

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Holzäpfel, A., Festa, A., Stacher-Janotta, G. et al. Gastric emptying in Type II (non-insulin-dependent) diabetes mellitus before and after therapy readjustment: no influence of actual blood glucose concentration. Diabetologia 42, 1410–1412 (1999). https://doi.org/10.1007/s001250051311

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  • Keywords Non-insulin-dependent diabetes mellitus, gastric emptying, blood glucose concentration, hyperglycaemia, hypoglycaemic therapy.