Dopamine receptor D2 polymorphism is associated with alleviation of obesity after 8-year follow-up: a retrospective cohort study in obese Chinese children and adolescents

• Published in: Journal of Zhejiang University. B. Science Vol. 19; no. 10; pp. 807 - 814
• Main Authors: Zhu, Jian-fang, Chen, Lian-hui, Yuan, Ke, Liang, Li, Wang, Chun-lin
• Format: Journal Article
• Language: English
• Published: Hangzhou Zhejiang University Press 01.10.2018; Springer Nature B.V
• Subjects: Adolescent; Adolescents; Alleles; Biomedical and Life Sciences; Biomedicine; Body Mass Index; Child; Children; Cohort analysis; Confidence intervals; Dopamine; Dopamine D2 receptors; Female; Health risk assessment; Humans; Male; Medical records; Obesity; Obesity - genetics; Polymorphism; Polymorphism, Single Nucleotide; Receptors, Dopamine D2 - genetics; Retrospective Studies; Single-nucleotide polymorphism; Statistical analysis; Teenagers; Weight; Follow-up study; Obesity; 肥胖; Dopamine receptor D2; 青少年; Adolescent; Children; 儿童; 随访研究; 多巴胺受体D2; Obesity; Follow-up study; Dopamine receptor D2; Children; Adolescent
• ISSN: 1673-1581; 1862-1783
• DOI: 10.1631/jzus.B1800155

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.