Xiao Yichun, Zhong Xiaomei, Yuan Hexiu
Objective To explore the influencing factors in the development of simple obesity by investigating the correlation between serum 25-hydroxyvitamin D3 (25-OH-D3) and various metabolic indicators in children with simple obesity. Methods A total of 250 children who visited the Department of Child Health Care of Ganzhou People′s Hospital from June 2023 to June 2024 were selected.They were divided into the obese group and the healthy control group based on whether they were obese or not.The obesity group included 125 children with simple obesity (without significant endocrine or metabolic diseases and with relatively even fat distribution),while 125 normal-weight children from routine health examinations during the same period were included as controls.Physical measurement data [(height,weight,and (body mass index,BMI)] were collected from all the children ultimately included in the study,and serum levels of 25-OH-D3 and metabolic indicators,including triglycerides (TG),total cholesterol (TC),low-density lipoprotein cholesterol (LDL-C),high-density lipoprotein cholesterol (HDL-C),fasting plasma glucose (FPG),fasting insulin (FINS),2-hour postprandial blood glucose (2h BG),2-hour postprandial insulin (2h INS),and osteocalcin (OC) were measured. Results Univariate analysis showed that the obesity group had significantly higher levels of weight,BMI,FINS,2h BG,2h INS,TC,TG,and LDL-C compared to the healthy control group (all P<0.05),while serum levels of 25-OH-D3,HDL-C,and OC were significantly lower than the healthy control group (all P<0.05).Correlation analysis revealed that serum 25-OH-D3 was negatively correlated with weight,BMI,TG,and FINS (all P<0.05),but showed no significant correlation with TC,HDL-C,LDL-C,2h BG,2h INS,or OC (all P>0.05).Stepwise analysis indicated that BMI had a significant negative predictive effect on 25-OH-D3 levels (P<0.05). Conclusion Compared to children with normal BMI,those with simple obesity have significantly lower serum 25-OH-D3 levels,which are notably associated with BMI and TG.This suggests that serum 25-hydroxyvitamin D3 levels may play a role in lipid metabolism in children with simple obesity.