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J Clin Endocrinol Metab. 2013 Sep;98(9):3793-801. doi: 10.1210/jc.2013-1536. Epub 2013 Jun 24.

Insulin resistance and impaired pancreatic β-cell function in adult offspring of women with diabetes in pregnancy.

Author information

1
Center for Pregnant Women with Diabetes, Department of Obstetrics, Research Unit 7821, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark. louisekelstrup@dadlnet.dk

Abstract

CONTEXT:

Offspring of women with diabetes during pregnancy have an increased risk of glucose intolerance in adulthood, but the underlying mechanisms are unknown.

OBJECTIVE:

We aimed to investigate the effects of intrauterine hyperglycemia on insulin secretion and action in adult offspring of mothers with diabetes.

DESIGN, SETTING, AND PARTICIPANTS:

A cohort of 587 Caucasian offspring, without known diabetes, was followed up at the age of 18-27 years. We included 2 groups exposed to maternal diabetes in utero: offspring of women with gestational diabetes mellitus (n = 167) or type 1 diabetes (n = 153). Two reference groups were included: offspring of women with risk factors for gestational diabetes mellitus but normoglycemia during pregnancy (n = 139) and offspring from the background population (n = 128).

MAIN OUTCOME MEASURES:

Indices of insulin sensitivity and insulin release were calculated using insulin and glucose values from a standard oral glucose tolerance test (120 minutes, 75 g glucose). Pancreatic β-cell function taking the prevailing insulin sensitivity into account was estimated by disposition indices.

RESULTS:

Both groups of offspring exposed during pregnancy to either maternal gestational diabetes or type 1 diabetes had reduced insulin sensitivity compared with offspring from the background population (both P < .005). We did not find any significant difference in absolute measures of insulin release. However, the disposition index was significantly reduced in both the diabetes-exposed groups (both P < .005).

CONCLUSION:

Reduced insulin sensitivity as well as impaired pancreatic β-cell function may contribute to the increased risk of glucose intolerance among adult offspring born to women with diabetes during pregnancy.

PMID:
23796568
PMCID:
PMC3763979
DOI:
10.1210/jc.2013-1536
[Indexed for MEDLINE]
Free PMC Article
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