机构地区:[1]北京大学北京回龙观医院教学医院,100096
出 处:《中华精神科杂志》2015年第6期355-359,共5页Chinese Journal of Psychiatry
基 金:国家自然科学基金(81071086,81461130016)
摘 要:目的探讨精神分裂症患者儿茶酚-O-甲基转移酶(catechol—O—methyltransferase,COMT)第158位密码子从缬氨酸到蛋氨酸的多态性(Val108/158Met)与P50感觉门控的关系。方法共纳人精神分裂症患者139例(患者组),健康对照165名(对照组),对所有研究对象进行事件相关电位(event.relatedpotential,ERP)检测,以S1、S2、S1-S2、S2/S1为指标评价P,。感觉门控;应用聚合酶链反应.限制性片段长度多态性(polymerase chain reaction—restriction fragment length polymorphism,PCR—RFLP)方法,分析患者组与对照组COMTVal108/158Met基因型与等位基因分布频率,比较2组不同基因型问P,。各指标的差异。结果(1)患者组s1(2.84±1.53)、s1.s2(1.03±1.61)较对照组(3.63±1.94、2.10±1.77)低(t=-3.96、-5.45,均P〈0.05),s2/S1(0.83±0.96)较对照组(0.48±0.52)高(t=3.95,P〈0.05),2组s2差异无统计学意义(1.81±1.15与1.53±1.39,t=1.876,P〉0.05);(2)患者组Val/Val、Val/Met、Met/Met基因型间S1(2.87±0.22、2.85±0.19、2.72±0.38)、S2(1.88±0.16、1.82±0.14、1.53±0.28)、S1-S2(0.98±0.23、1.03±0.20、1.19±0.40)、S2/S1(0.83±0.13、0.89±0.12、0.63±0.24)的差异均无统计学意义(F=0.06、0.59、0.11、0.51,均P〉0.05),男性患者Val/Val、Val/Met、Met/Met基因型间S1(12.59±0.24、2.77±0.19、2.62±0.39)、S2(1.78±0.18、1.77±0.14、1.21±0.30)、S1.S2(0.81±0.27、1.00±0.21、1.41±0.43)、S2/S1(0.87±0.19、0.94±0.15、0.49±0.32)的差异均无统计学意义(F=0.20、1.61、0.71、0.86,均P〉0.05);(3)2组间COMT基因型与等位基因分布差异有统计学意义(χ2=7.74、5.87,均P〈0.05),未发现诊断和COMT基因型的交Objecttive To investigate the association between catechol O-methyl transferase (COMT) Val108/158Met polymorphism and Ps0 sensory gating in patients with schizophrenia. Methods In this study, event-related potentials (ERP) was determined in 139 stable patients with schizophrenia and 165 healthy controls. P50 sensory gating was evaluated by S1, S2, S1-S2, and S2/S1. COMT Va1108/158 Met polymorphism was genotyped by polymerase chain reaction-restrict/on fragment length polymorphism (PCR- RFLP). The differences of Ps0 gating among COMT genotypes were compared. Results Compared with control group, schizophrenic patients exhibited smaller S1, S1-S2, and a higher S2/S1 ratio (2.84±1.53, 1.03±1.61, 0.83±0.96 vs. 3.63±1.94, 2.10±1.77, 0.48±0.52, t=-3.96,-5.45, 3.95, all P〈0.05). There was no difference in S2 between schizophrenic patients (1.81 ±1.15) and control group (1.53± 1.39, t=1.876, P〉 0.05). The significant differences in COMT allelic and genotypic distributions were observed between schizophrenic patients and control group (χ2=7.74, 5.87, all P〈0.05). There were no differences in S1 (2.87± 0.22, 2.85±0.19, 2.72±0.38), S2 (1.88±0.16, 1.82±0.14, 1.53±0.28), S1-S2 (0.98±0.23, 1.03±0.20, 1.19± 0.40), and S2/S1 (0.83±0.13, 0.89±0.12, 0.63±0.24) among COMT genotypes for schizophrenic patients (F= 0.06, 0.59, 0.11, 0.51, all P〉0.05). No differences were also observed in S1 (2.59±0.24, 2.77±0.19, 2.62± 0.39), S2 (1.78±0.18, 1.77±0.14, 1.21±0.30), S1-S2 (0.81±0.27, 1.00±0.21, 1.41±0.43), and S2/S1 (0.87± 0.19, 0.94±0.15, 0.49±0.32) among COMT genotypes for men patients (F=0.20, 1.61, 0.71, 0.86, all P〉 0.05). The significant differences in COMT allele and genotype distributions were observed between schizophrenic patients and control group (χ2=7.74, 5.87, all P〈0.05). The interaction between diagnosis and COMT genotype did not seem to associate with S1, S2, S1-S2 and S2/S1 (F=0.20, 0.10, 0.40, 0.33, al
关 键 词:精神分裂症 感觉门控 儿茶酚O-甲基转移酶 多态性
分 类 号:R749.3[医药卫生—神经病学与精神病学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...