PMID: 6400704Sep 1, 1983Paper

Age-dependent insulin secretion of the endocrine pancreas in vitro from fetuses of diabetic and nondiabetic patients

Diabetes Care
H ReiherH J Hahn

Abstract

Fetal hyperinsulinemia is assumed to play a key role in the pathogenesis of diabetic fetopathy. To investigate the role of enhanced fetal B-cell mass as one cause of fetal hyperinsulinemia during diabetic pregnancy, we studied human fetal pancreatic slices from diabetic women (FDW) with poor metabolic control and nondiabetic women (FNDW) between 11 and 26 wk of pregnancy, morphometrically and by in vitro incubation experiments. Abortions had been performed due to different medical indications. We found a good correlation between the calculated B-cell mass and the gestational age in both FDW and FNDW, but the increase in FDW was much more pronounced. Such a correlation was also found in vitro regarding the insulin response to glucose and IBMX. The FDW had significantly higher values than FNDW of the same age range. In contrast to this, we found in two diabetic patients with tight metabolic control during the whole pregnancy results similar to those in FNDW. Therefore, we assume that it could be possible to prevent fetal hyperinsulinemia and perhaps even diabetic fetopathy in diabetic women by tight metabolic control during the whole pregnancy, but further investigations are necessary.

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