PMID- 23140671 OWN - NLM STAT- MEDLINE DCOM- 20130607 LR - 20211021 IS - 1879-1379 (Electronic) IS - 0022-3956 (Print) IS - 0022-3956 (Linking) VI - 47 IP - 2 DP - 2013 Feb TI - Brain-derived neurotrophic factor (BDNF) Val66Met and adulthood chronic stress interact to affect depressive symptoms. PG - 233-9 LID - S0022-3956(12)00322-6 [pii] LID - 10.1016/j.jpsychires.2012.10.009 [doi] AB - BACKGROUND: BDNF Val66Met by chronic stress interaction has been studied using childhood stress as a moderator, but has not been widely studied using chronic stress in adulthood. METHODS: Two independent samples were used: Duke-CG (238 Caucasians) and MESA (5524 Caucasians, African Americans and Hispanics). Chronic stress in Duke-CG was operationalized as having primary caregiving responsibility for a spouse or relative with diagnosed Alzheimer's disease or other major dementia; chronic stress in MESA was defined using chronic burden score constructed from self-reported problems of health (self and someone close), job, finance and relationships. CES-D scale was the measure of depression in both samples. The BDNF Val66Met by adulthood chronic stress interaction predicting CES-D was examined using linear regression, adjusted for covariates. RESULTS: The main effect of BDNF Val66Met genotype on CES-D scores was non-significant (ps > 0.607) but the adulthood chronic stress indicator was significant (ps < 0.001) in both samples. The BDNF Val66Met genotype by adulthood chronic stress interaction was also significant (ps < 0.039) in both samples. The impact of chronic stress in adulthood on CES-D scores was significantly larger in Val/Val genotype individuals than Met carriers. CONCLUSION: We found in two independent samples that depression levels increased significantly more as a function of adulthood chronic stress Val/Val genotype carriers than Met carriers. Individuals with the Val/Val genotype and chronic stress exposure could be targeted for interventions designed to reduce risk of depression if this finding is confirmed in future studies. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Jiang, Rong AU - Jiang R AD - Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC 27705, USA. rong.jiang@duke.edu FAU - Brummett, Beverly H AU - Brummett BH FAU - Babyak, Michael A AU - Babyak MA FAU - Siegler, Ilene C AU - Siegler IC FAU - Williams, Redford B AU - Williams RB LA - eng GR - N02-HL-6-4278/HL/NHLBI NIH HHS/United States GR - R01 AG019605/AG/NIA NIH HHS/United States GR - UL1 RR024156/RR/NCRR NIH HHS/United States GR - N01-HC-95159/HC/NHLBI NIH HHS/United States GR - N01-HC-95169/HC/NHLBI NIH HHS/United States GR - N01HC95159/HL/NHLBI NIH HHS/United States GR - N01HC65226/HL/NHLBI NIH HHS/United States GR - N01-HC-65226/HC/NHLBI NIH HHS/United States GR - N01HC95169/HL/NHLBI NIH HHS/United States GR - P01 HL036587/HL/NHLBI NIH HHS/United States GR - R01AG19605/AG/NIA NIH HHS/United States GR - M01 RR000030/RR/NCRR NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Research Support, N.I.H., Extramural DEP - 20121108 PL - England TA - J Psychiatr Res JT - Journal of psychiatric research JID - 0376331 RN - 0 (Brain-Derived Neurotrophic Factor) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Adolescent MH - Aged MH - Brain-Derived Neurotrophic Factor/*genetics MH - Cohort Studies MH - Depression/complications/*genetics MH - Female MH - Genotype MH - Humans MH - Linear Models MH - Male MH - Methionine/*genetics MH - Middle Aged MH - Psychiatric Status Rating Scales MH - Stress, Psychological/complications/*genetics MH - Surveys and Questionnaires MH - Valine/*genetics PMC - PMC3605893 MID - NIHMS417481 COIS- Conflict of interest: Redford B. Williams is a founder and major stockholder in Williams LifeSkills, Inc. EDAT- 2012/11/13 06:00 MHDA- 2013/06/08 06:00 PMCR- 2014/02/01 CRDT- 2012/11/13 06:00 PHST- 2012/06/18 00:00 [received] PHST- 2012/09/27 00:00 [revised] PHST- 2012/10/17 00:00 [accepted] PHST- 2012/11/13 06:00 [entrez] PHST- 2012/11/13 06:00 [pubmed] PHST- 2013/06/08 06:00 [medline] PHST- 2014/02/01 00:00 [pmc-release] AID - S0022-3956(12)00322-6 [pii] AID - 10.1016/j.jpsychires.2012.10.009 [doi] PST - ppublish SO - J Psychiatr Res. 2013 Feb;47(2):233-9. doi: 10.1016/j.jpsychires.2012.10.009. Epub 2012 Nov 8.