PMID- 23869328 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20130722 LR - 20211021 IS - 2234-0645 (Print) IS - 2234-0653 (Electronic) IS - 2234-0645 (Linking) VI - 37 IP - 3 DP - 2013 Jun TI - Effect of the presence of brain-derived neurotrophic factor val(66)met polymorphism on the recovery in patients with acute subcortical stroke. PG - 311-9 LID - 10.5535/arm.2013.37.3.311 [doi] AB - OBJECTIVE: To investigate the effect of brain-derived neurotrophic factor (BDNF) Val(66)Met polymorphism on the recovery after subcortical stroke, using the modified Rankin Scale (mRS). METHODS: Subcortical stroke patients with copies of BDNF Val(66)Met polymorphism (n=7) were compared to their controls (n=7) without a copy of BDNF Val(66)Met polymorphism after matching for initial severity, location and type of stroke. The mRS scores at 1 and 3 months after discharge from the neurorehabilitation unit were compared between the groups. RESULTS: A repeated measures ANOVA for mRS revealed significant interaction between time and group (F(2, 24) =37.2, p<0.001) and a significant effect of time (F(2, 24)=10.8, p<0.001), thereby reflecting significant differences between the Met allele (+) group and the Met allele (-) group. There was a significant difference in mRS scores at 3 months post-discharge between the two groups (p=0.01) although no difference was evident in mRS scores at 1 month post-discharge between the two groups. There were significant improvements between mRS scores on admission and mRS scores at 1 month post-discharge (p=0.02), and between mRS scores at 1 month post-discharge and mRS scores at 3 months post-discharge (p=0.004) in the Met allele (-) group. CONCLUSION: BDNF Val(66)Met polymorphism may be associated with worse functional outcome in Korean patients with subcortical stroke. Therefore, BDNF Val(66)Met polymorphism should be considered as an important prognostic factor for recovery and responses to rehabilitation therapies after stroke in Korean patients. There is a need for developing different rehabilitation strategies for the population with BDNF Val(66)Met polymorphism. Further studies assessing different outcomes for various functional domains of stroke recovery are needed to clarify the role of BDNF Val(66)Met polymorphism. FAU - Kim, Won-Seok AU - Kim WS AD - Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. FAU - Lim, Jong Youb AU - Lim JY FAU - Shin, Joon Ho AU - Shin JH FAU - Park, Hye Kyung AU - Park HK FAU - Tan, Samuel Arnado AU - Tan SA FAU - Park, Kyoung Un AU - Park KU FAU - Paik, Nam-Jong AU - Paik NJ LA - eng PT - Journal Article DEP - 20130630 PL - Korea (South) TA - Ann Rehabil Med JT - Annals of rehabilitation medicine JID - 101573065 PMC - PMC3713287 OTO - NOTNLM OT - Brain plasticity OT - Brain-derived neurotrophic factor OT - Polymorphism OT - Recovery OT - Stroke COIS- No potential conflict of interest relevant to this article was reported. EDAT- 2013/07/23 06:00 MHDA- 2013/07/23 06:01 PMCR- 2013/06/01 CRDT- 2013/07/23 06:00 PHST- 2012/11/01 00:00 [received] PHST- 2012/12/24 00:00 [accepted] PHST- 2013/07/23 06:00 [entrez] PHST- 2013/07/23 06:00 [pubmed] PHST- 2013/07/23 06:01 [medline] PHST- 2013/06/01 00:00 [pmc-release] AID - 10.5535/arm.2013.37.3.311 [doi] PST - ppublish SO - Ann Rehabil Med. 2013 Jun;37(3):311-9. doi: 10.5535/arm.2013.37.3.311. Epub 2013 Jun 30.