Jian-Fang Zhu1, Lian-Hui Chen2, Ke Yuan1, Li Liang1, Chun-Lin Wang1. 1. Department of Pediatrics, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China. 2. The Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China.
Abstract
OBJECTIVE: The aim of this study was to explore the association of dopamine receptor D2 (DRD2) polymorphism and alleviation of obesity in children and adolescents after 8-year follow-up. METHODS: This retrospective cohort study included obese children and adolescents with a follow-up period of 8 years. Baseline clinical characteristics and DRD2 polymorphisms (including rs1076562, rs2075654, and rs4586205) were extracted from medical records. A follow-up visit was performed in May 2017 to collect related data including height, weight, diet compliance, and exercise compliance. RESULTS: One hundred and nine obese children and adolescents were included in the current study. Among three DRD2 single nucleotide polymorphisms, only rs2075654 had a statistically significant association with alleviation of obesity, as the alleviation rate for minor allele carriers (68.6% for TC+TT) was higher compared to the major allele homozygote (43.3% for CC). After adjusting for all related factors, the hazard ratio of rs2075654 minor allele carriers for the alleviation of obesity was 3.34 (95% confidence interval (CI): 1.30‒8.58). CONCLUSIONS: The rs2075654 polymorphism of DRD2 is related to long-term obesity alleviation in obese Chinese children and adolescents.
OBJECTIVE: The aim of this study was to explore the association of dopamine receptor D2 (DRD2) polymorphism and alleviation of obesity in children and adolescents after 8-year follow-up. METHODS: This retrospective cohort study included obesechildren and adolescents with a follow-up period of 8 years. Baseline clinical characteristics and DRD2 polymorphisms (including rs1076562, rs2075654, and rs4586205) were extracted from medical records. A follow-up visit was performed in May 2017 to collect related data including height, weight, diet compliance, and exercise compliance. RESULTS: One hundred and nine obesechildren and adolescents were included in the current study. Among three DRD2 single nucleotide polymorphisms, only rs2075654 had a statistically significant association with alleviation of obesity, as the alleviation rate for minor allele carriers (68.6% for TC+TT) was higher compared to the major allele homozygote (43.3% for CC). After adjusting for all related factors, the hazard ratio of rs2075654 minor allele carriers for the alleviation of obesity was 3.34 (95% confidence interval (CI): 1.30‒8.58). CONCLUSIONS: The rs2075654 polymorphism of DRD2 is related to long-term obesity alleviation in obese Chinese children and adolescents.
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