PMID- 23532065 OWN - NLM STAT- MEDLINE DCOM- 20131023 LR - 20220318 IS - 1473-5873 (Electronic) IS - 0955-8829 (Linking) VI - 23 IP - 3 DP - 2013 Jun TI - BDNF Val66Met polymorphism and anxiety/depression symptoms in schizophrenia in a Chinese Han population. PG - 124-9 LID - 10.1097/YPG.0b013e328360c866 [doi] AB - BACKGROUND: Although several lines of evidences suggest that the brain-derived neurotrophic factor (BDNF) Val66Met polymorphism may be involved in the pathophysiology of schizophrenia, this association remains controversial. Here, we aim to investigate the genetic association between the BDNF Val66Met polymorphism and schizophrenia and to explore whether this polymorphism could influence the severity of clinical symptoms in schizophrenic patients in a Chinese Han population. PATIENTS AND METHODS: Genotyping of the BDNF Val66Met polymorphism was carried out in 456 schizophrenic patients and 483 controls using the fluorescence resonance energy transfer method. The patients' psychotic symptoms were assessed using the Positive and Negative Syndrome Scale. The general clinical data of schizophrenic patients were analyzed. RESULTS: There were significant differences in the genotype distribution and allelic frequencies of the BDNF Val66Met polymorphism between the schizophrenia group and the controls. Multiple linear regression analysis showed that the BDNF Val66Met polymorphism explained ~16% of the variance in anxiety/depression symptoms in schizophrenic patients. CONCLUSION: Our data provide evidence that the BDNF Val66Met polymorphism may be involved in the etiology of schizophrenia in a Chinese Han population. Furthermore, the BDNF Val66Met polymorphism is a significant factor influencing the severity of anxiety/depression symptoms in schizophrenic patients. FAU - Sun, Meng-Meng AU - Sun MM AD - Department of Psychiatry, Shandong Mental Health Center, Shandong University, Jinan, Shandong, People's Republic of China. FAU - Yang, Li-Min AU - Yang LM FAU - Wang, Yan AU - Wang Y FAU - Feng, Xuan AU - Feng X FAU - Cui, Kai-Yan AU - Cui KY FAU - Liu, Lan-Fen AU - Liu LF FAU - Chen, Zhe-Yu AU - Chen ZY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Psychiatr Genet JT - Psychiatric genetics JID - 9106748 RN - 0 (Brain-Derived Neurotrophic Factor) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Adult MH - Anxiety/complications/ethnology/*genetics MH - Brain-Derived Neurotrophic Factor/chemistry/*genetics MH - Case-Control Studies MH - China MH - Depression/complications/enzymology/*genetics MH - Ethnicity MH - Female MH - Humans MH - Linear Models MH - Male MH - Methionine/*genetics MH - *Polymorphism, Genetic MH - Schizophrenia/complications/enzymology/*genetics MH - Valine/*genetics EDAT- 2013/03/28 06:00 MHDA- 2013/10/24 06:00 CRDT- 2013/03/28 06:00 PHST- 2013/03/28 06:00 [entrez] PHST- 2013/03/28 06:00 [pubmed] PHST- 2013/10/24 06:00 [medline] AID - 10.1097/YPG.0b013e328360c866 [doi] PST - ppublish SO - Psychiatr Genet. 2013 Jun;23(3):124-9. doi: 10.1097/YPG.0b013e328360c866.