title: Performance of Verbal Fluency as an Endophenotype in Patients with Familial versus Sporadic Schizophrenia and Their Parents.
abstract: What's the neurocognitive deficit as an endophenotype to familial schizophrenia? Here, we investigate the neurocognitive endophenotype in first-episode patients with familial schizophrenia (FS) and sporadic schizophrenia (SS), and their parents. 98 FS patients and their 105 parents; 190 SS patients and their 207 parents; 195 controls matched with patients, and 190 controls matched with the patients' parents, were assessed with the short version of the Wechsler Adult Intelligence Scale-Revised in China (WAIS-RC), the immediate and delayed logical memory tests from the Wechsler Memory Scale-Revised in China (WMS-RC), the Verbal Fluency Test (VFT), the Trail Making Test Parts A and B-Modified (TMA, TMB-M), and the Modified Wisconsin Card Sorting Test (WCST-M). The results showed that with age, gender, and education as covariates, after controlling for false discovery rates, the FS group and their parent group performed worse than the SS group and their parent group on VFT. No significant differences were found for other neurocognitive tests between the FS and SS patient groups, and their respective parent groups. Our findings suggest the patients with familial and sporadic schizophrenia and their respective parent groups may have a different genetic predisposition in relation to a cognitive endophenotype.
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.|West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Sugai
authors: S
authors: Liang
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.|West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Wei
authors: W
authors: Deng
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Qiang
authors: Q
authors: Wang
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Xiaohong
authors: X
authors: Ma
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Mingli
authors: M
authors: Li
authors: Department of Psychiatry, University of Alberta, Edmonton, AB T6G2B3, Canada.
authors: Matthew R G
authors: MR
authors: Brown
authors: Huaxi Biobank, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Xun
authors: X
authors: Hu
authors: Department of Psychiatry, University of Alberta, Edmonton, AB T6G2B3, Canada.
authors: Xinmin
authors: X
authors: Li
authors: Department of Psychiatry, University of Alberta, Edmonton, AB T6G2B3, Canada.
authors: Andrew J
authors: AJ
authors: Greenshaw
authors: Department of Psychiatry and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.|West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
authors: Tao
authors: T
authors: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D016022:Case-Control Studies; D058068:Endophenotypes; D056344:Executive Function / Q000502:physiology; D005190:Family; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D012559:Schizophrenia / Q000145:classification / Q000175:diagnosis / Q000235:genetics / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D012737:Sex Factors