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Does parity increase insulin resistance during pregnancy?

April 26, 2017biotechnology center increase insulin National parity pregnancy PubMed resistance

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Does parity increase insulin resistance during pregnancy?

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AIMS: To study the effect of parity on impairment of insulin sensitivity during pregnancy and on the risk of gestational diabetes (GDM). METHODS: We studied the relationship between parity and peripheral insulin sensitivity index (ISI(OGTT)) or GDM in 1880 caucasian women, who underwent a 100-g, 3-h oral glucose tolerance test (OGTT) between the 24th and 28th gestational week and in 75 women who underwent an OGTT in two consecutive pregnancies. A proxy for beta-cell function (basal plasma C peptide/fasting plasma glucose; CP/FPG) was also measured. RESULTS: By univariate analysis parity was related to decreased ISI(OGTT) and to increased CP/FPG in those with parity > 3 and likewise GDM, diagnosed in 124 women (6.58%), was linearly related to parity (P = 0.0034) and strongly age dependent. The relationships between parity and ISI(OGTT), CP/FPG and GDM were no longer significant after adjustment for age, pregestational body mass index (BMI), and weight gain. GDM was significantly related