Gestational diabetes mellitus (GDM) occurs due to the inability to adapt to physiologically observed changes in carbohydrate metabolism during pregnancy. Neudesin is a multi-functional secreted protein suggested to have a crucial regulator role in energy and carbohydrate metabolism. This study aimed to evaluate maternal serum and umbilical cord neudesin levels in pregnancies with GDM. Twenty-four singleton pregnancies with GDM were compared with gestational age-matched 23 uncomplicated pregnancies in this cross-sectional study. In comparison to the control group, significantly higher maternal serum and umbilical cord neudesin levels were observed in pregnancies with GDM ( < .001). Maternal serum and umbilical cord neudesin levels were also significantly positively correlated with maternal serum insulin levels and HOMA-IR values in the study group ( < .001). Neudesin, with its regulator role in carbohydrate metabolism, may be a contributing factor in the pathophysiology of GDM and may be a target of strategies for the prevention and treatment of GDM.Impact statement Progressive changes in carbohydrate metabolism occur in normal pregnancy to provide continuous nutritional supply to the developing foetus and pregnant woman. When these progressive metabolic changes cannot be compensated, gestational diabetes mellitus (GDM) occurs. This is the first study to provide information about maternal serum and umbilical cord neudesin levels in pregnancies with GDM. This study observed that the serum levels of neudesin, which is suggested to have a regulator role in carbohydrate metabolism, were increased in pregnant women with GDM. Neudesin may contribute to impaired carbohydrate metabolism in pregnancies with GDM and can be the subject of further studies on the prevention and treatment of GDM.
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