Abstract
The aim of this study was to determine whether sirtuin-1 (SIRT1), which has a regulatory role in glucose and lipid metabolism with its deacetylase activity, has a decisive role in predicting gestational diabetes (GDM). This study was performed at the antenatal outpatient clinic of Ankara City Hospital between January 2021 and May 2021. A total of 525 women with low-risk pregnancy underwent the 75 g oral glucose tolerance test (OGTT) between 24th-28th weeks of pregnancy during the study period. Fasting serum SIRT1 levels of patients diagnosed with GDM according to OGTT results were compared some of those without GDM. Of the 525 pregnant women who underwent 75 g OGTT, 50 (9.6%) were diagnosed with GDM. The data of pregnant women with GDM were compared with age and Body Mass Index matched 122 controls. While serum SIRT1 levels were 22.0 (19.9-24.3) ng/mL in the GDM group, it was 34.7 (28.8-54.6) ng/mL in the control group (P<0.001). ROC curve analysis showed that a threshold level for serum SIRT1 equal to or greater than 27.3 ng/mL may predict GDM with a sensitivity of 86% and specificity of 80%. Second-trimester low serum SIRT1 levels are associated with GDM. It may be a diagnostic marker for GDM.
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