Gestational diabetes mellitus (GDM) is a common disease during pregnancy that has adverse effects on both the mother and fetus. There are currently rare researches on the effect of vitamin supplementation on GDM pregnant mother and their offspring on animal and cell levels systematically. This work supplemented the GDM pregnant mouse model with vitamin D and found that vitamin D can effectively alleviate the hyperglycemia in GDM pregnant mice, increase blood insulin and adiponectin concentrations, and improve GTT and ITT in pregnant mice. In addition, vitamin D can reduce the incidence of death and high birth weight of offspring caused by GDM. The offspring of GDM pregnant mice had higher blood glucose levels in the first 5 weeks after birth compared to the normal group, and then returned to normal levels. Vitamin D can alleviate abnormal glucose metabolism in newborn mice. The therapeutic effect exhibited by vitamin D may be due to their anti-inflammatory effects, as vitamin D supplementation significantly reduces the levels of TFN-?, MCP-1, IL-1? and IL-8 in the blood. Vitamin D also regulates liver lipid metabolism, resulting in a decrease in liver lipid accumulation and a decrease in blood triglycerides (TG) and cholesterol (CHO). The results of this study demonstrate that vitamin D supplementation can serve as an effective treatment strategy for alleviating GDM symptoms. Keywords: Gestational diabetes mellitus, Vitamin D, Glucose metabolism, Anti-inflammatory.

Department of Gynecology and Obstetrics The 4th Hospital of Shijiazhuang Shijiazhuang Hebei China

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