BACKGROUND Cognitive reserve(CR)and the catechol-O-methyltransferase(COMT)Val/Met polymorphism are reportedly linked to negative symptoms in schizophrenia.However,the regulatory effect of the COMT genotype on the rela...BACKGROUND Cognitive reserve(CR)and the catechol-O-methyltransferase(COMT)Val/Met polymorphism are reportedly linked to negative symptoms in schizophrenia.However,the regulatory effect of the COMT genotype on the relationship between CR and negative symptoms is still unexamined.AIM To investigate whether the relationship between CR and negative symptoms could be regulated by the COMT Val/Met polymorphism.METHODS In a cross-sectional study,54 clinically stable patients with schizophrenia underwent assessments for the COMT genotype,CR,and negative symptoms.CR was estimated using scores in the information and similarities subtests of a short form of the Chinese version of the Wechsler Adult Intelligence Scale.RESULTS COMT Met-carriers exhibited fewer negative symptoms than Val homozygotes.In the total sample,significant negative correlations were found between negative symptoms and information,similarities.Associations between information,similarities and negative symptoms were observed in Val homozygotes only,with information and similarities showing interaction effects with the COMT genotype in relation to negative symptoms(information,β=-0.282,95%CI:-0.552 to-0.011,P=0.042;similarities,β=-0.250,95%CI:-0.495 to-0.004,P=0.046).CONCLUSION This study provides initial evidence that the association between negative symptoms and CR is under the regulation of the COMT genotype in schizophrenia.展开更多
目的:研究海南地区汉族人群、黎族人群、脑梗死患者、冠心病患者FⅧ val 34Leu分布特点。方法:用聚合酶链反应、限制性片段长度多态性分析及核苷酸顺序测定检测205名汉族正常人、236名黎族正常人、196例脑梗死患者、188例冠心病患者(心...目的:研究海南地区汉族人群、黎族人群、脑梗死患者、冠心病患者FⅧ val 34Leu分布特点。方法:用聚合酶链反应、限制性片段长度多态性分析及核苷酸顺序测定检测205名汉族正常人、236名黎族正常人、196例脑梗死患者、188例冠心病患者(心肌梗死/非心肌梗死,55/133)FⅩⅢA链 Val 34 Leu多态性。结果:汉族人群、黎族人群、脑梗死组未发现Val 34 Leu多态性,在冠心病组中发现1例Val 34 Leu杂合子。结论:FⅧ Val 34 Leu变异在中国人群中不是多态性,与缺血性心脑血管疾病没有关联,不是中国人群中防止动脉血栓性疾病的保护性因素。展开更多
基金Supported by the National Natural Science Foundation of China,No.81971250 and No.82171501Beijing Hospitals Authority Clinical Medicine Development of Special Funding Support,No.ZLRK202335Early Psychosis Cohort Program of Beijing Anding Hospital,No.ADDL-03.
文摘BACKGROUND Cognitive reserve(CR)and the catechol-O-methyltransferase(COMT)Val/Met polymorphism are reportedly linked to negative symptoms in schizophrenia.However,the regulatory effect of the COMT genotype on the relationship between CR and negative symptoms is still unexamined.AIM To investigate whether the relationship between CR and negative symptoms could be regulated by the COMT Val/Met polymorphism.METHODS In a cross-sectional study,54 clinically stable patients with schizophrenia underwent assessments for the COMT genotype,CR,and negative symptoms.CR was estimated using scores in the information and similarities subtests of a short form of the Chinese version of the Wechsler Adult Intelligence Scale.RESULTS COMT Met-carriers exhibited fewer negative symptoms than Val homozygotes.In the total sample,significant negative correlations were found between negative symptoms and information,similarities.Associations between information,similarities and negative symptoms were observed in Val homozygotes only,with information and similarities showing interaction effects with the COMT genotype in relation to negative symptoms(information,β=-0.282,95%CI:-0.552 to-0.011,P=0.042;similarities,β=-0.250,95%CI:-0.495 to-0.004,P=0.046).CONCLUSION This study provides initial evidence that the association between negative symptoms and CR is under the regulation of the COMT genotype in schizophrenia.
文摘目的:研究海南地区汉族人群、黎族人群、脑梗死患者、冠心病患者FⅧ val 34Leu分布特点。方法:用聚合酶链反应、限制性片段长度多态性分析及核苷酸顺序测定检测205名汉族正常人、236名黎族正常人、196例脑梗死患者、188例冠心病患者(心肌梗死/非心肌梗死,55/133)FⅩⅢA链 Val 34 Leu多态性。结果:汉族人群、黎族人群、脑梗死组未发现Val 34 Leu多态性,在冠心病组中发现1例Val 34 Leu杂合子。结论:FⅧ Val 34 Leu变异在中国人群中不是多态性,与缺血性心脑血管疾病没有关联,不是中国人群中防止动脉血栓性疾病的保护性因素。
