摘要
目的 探讨中国北方汉族人群中单胺氧化酶A（MAOA）受体基因、儿茶酚-O-甲基转移酶（COMT）受体基因、多巴胺D3受体（DRD3）基因和5-羟色胺2C（5-HT2c）受体基因与强迫症的关系.方法 采用聚合酶链反应扩增片段长度多态技术测定164例强迫症患者包括103个核心家系的MAOA-T1460C、COMT-Val158Met、DRD3-Ser9Gly、5-HT2c-Cys23Ser四个位点受体基因多态性,并进行关联和连锁不平衡（TDT）分析.结果 病例组与对照组MAOA-T1460C、COMT-Val158Met、DRD3-Ser9Gly、5-HT2c-Cys23Ser受体基因的基因型和等位基因总体分布均差异无统计学意义（P＞0.05）,四个受体基因位点均符合H-W平衡,其中MAOA-T1460C受体基因在女性病例组与对照组、早发组与对照组、既有强迫思维又有强迫行为组与对照组、仅有强迫观念组与对照组的基因型和等位基因总体分布差异有统计学意义（P＜0.05）,且与家系组间存在连锁（P=0.0001）;5-HT2c-Cys23Ser受体基因在男性病例组与对照组、既有强迫思维又有强迫行为组与对照组的基因型和等位基因总体分布差异有统计学意义（P＜0.05）,且与家系组之间存在连锁（P=0.0389）;COMT-Val158Met受体基因在此对照实验中均差异无统计学意义（P＞0.05）,且与家系组间不存在连锁（P=0.0622）;DRD3-Ser9Gly受体基因在此对照实验中均差异无统计学意义（P＞0.05）,且与家系组间不存在连锁（P=0.1101）.结论 MAOA-T1460C受体基因多态性位点和5-HT2c-Cys23Ser受体基因多态性位点可能为强迫症易感受体基因.
Objective To explore the relationship between Monoamine oxidase A （MAOA） receptor gene,catechol-O-methyltransferase （COMT） receptor gene,dopamine D3 receptor（DRD3） gene and 5-HT2C receptor gene（5-HT2c） of Han population in northern China and obsessive compulsive disorder.Methods Polymerase chain reaction amplification determination of MAOA-T1460C,COMT-Val158Met,DRD3-Ser9Gly,5-HT2c-C ys23Ser four loci receptor gene polymorphism in 164 patients with OCD patients including 103 core pedigrees of fragment length polymorphism,and association and linkage disequilibrium （TDT）analysis.Results There was no significant difference of MAOA-T1460C,COMT-Val158Met,DRD3-Ser9Gly,5-HT2c-Cys23Ser four receptor gene in the patient group and the control group of genotype and allele distribution difference（P〉0.05）,four receptor gene loci were in accordance with the balance of the H-W,the MAOA-T1460C receptor gene in female patients group and control group,the early group and control group,which has forced thinking and difference of compulsive behavior group and the control group,only the obsessional group and the control group of genotype and allele distribution was statistically significant（P〈0.05）,and the family group between chain（P=0.0001） ;5-HT2c-Cys23Ser receptor gene in the case group and the control group,male both forced thinking and compulsive behavior group and control group differences in genotype and allele distribution was statistically significant （P〈 0.05）,and between family groups exist chain （P=0.0389） ; COMT-Val158Met receptor gene in the control experiments were no significant difference（P〉0.05）,and with the house group does not exist between the chain （P=0.0622） ;DRD3-Ser9Gly receptor gene in the control experiments were no significant difference（P〉0.05）,and with the family groups there is no chain（P=0.1101）.Conclusion MAOA-T1460C receptor gene polymorphism and 5-HT2c-Cys23Ser receptor gene polymorphisms may be the susceptible gene of obsessive compulsive disorder.
出处
《中华行为医学与脑科学杂志》
CAS
CSCD
北大核心
2014年第12期1090-1094,共5页
Chinese Journal of Behavioral Medicine and Brain Science
