Journal
GYNECOLOGIC AND OBSTETRIC INVESTIGATION
Volume 69, Issue 1, Pages 46-50Publisher
KARGER
DOI: 10.1159/000253851
Keywords
Maternal endothelin-1; Cyclic guanosine monophosphate; Gestational diabetes; Pregravid diabetes
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Background/Aims: Pregnancy complicated by diabetes is associated with increased risk of unfavorable obstetric outcomes. A common abnormality in diabetes is endothelial dysfunction resulting in an altered pattern of vasoactive substance production by the endothelial cells. The aim of study was to assess serum endothelin-1 (ET-1) and cyclic guanosine monophosphate (cGMP) in pregnant women with pregravid (PGDM) or gestational diabetes (GDM). Methods: At the time of delivery, serum ET-1, cGMP, glycated hemoglobin (A1c), fructosamine and non-fasting glucose were measured in 19 PGDM, 23 GDM and 18 controls. Results: ET-1 and cGMP were similar in all groups. In GDM there was a positive association between A1c and ET-1 (r = 0.437; p < 0.05) and cGMP (r = 0.542; p < 0.02). In the controls, but not in PGDM and GDM, we found a positive correlation between ET-1 and cGMP (r = 0.634; p < 0.005). In women with diabetes, an optimal (A1c <6%) or inadequate (A1c >6%) metabolic control of diabetes did not influence ET-1 or cGMP levels. Conclusions: In women with PGDM and GDM, serum ET-1 and cGMP were similar to the levels observed in healthy pregnant women. However, the physiological balance between vasoconstrictor and vasodilator substances might be defective in pregnancies complicated by diabetes. Copyright (C) 2009 S. Karger AG, Basel
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