PMID- 25183693 OWN - NLM STAT- MEDLINE DCOM- 20150817 LR - 20211021 IS - 1469-994X (Electronic) IS - 1462-2203 (Print) IS - 1462-2203 (Linking) VI - 17 IP - 3 DP - 2015 Mar TI - Association between smoking, nicotine dependence, and BDNF Val66Met polymorphism with BDNF concentrations in serum. PG - 323-9 LID - 10.1093/ntr/ntu151 [doi] AB - INTRODUCTION: Nicotine use is associated with the upregulation of brain-derived neurotrophic factor (BDNF) in serum. An association between smoking and the BDNF Val(66)Met polymorphism has also been found. The aim of this study is to examine the levels of serum BDNF in never-smokers, former smokers, and current smokers-with and without nicotine dependence-and to examine the interaction of the polymorphism and smoking status with serum BDNF. METHODS: We used baseline serum and gene data of BDNF on 2,088 participants from the Netherlands Study of Depression and Anxiety (NESDA) to investigate smoking-BDNF association while controlling for potential confounding variables. Nicotine dependence was assessed with the Fagerstrom Test for Nicotine Dependence (FTND). RESULTS: Smokers with and without nicotine dependence had higher levels of serum BDNF than former and never-smokers. Nicotine dependence and number of cigarettes smoked per day did not add to the prediction of serum BDNF; however, total number of smoking years was a significant predictor of serum BDNF. There was no association of BDNF Val(66)Met, nor an interaction of this polymorphism and smoking status, with serum BDNF. CONCLUSIONS: Current smoking and higher number of smoking years are associated with higher levels of serum BDNF, and this is independent of the BDNF genotype. Nicotine dependence itself is not associated with a further increase or decrease of serum BDNF. Longitudinal investigations that address changes in serum BDNF in incident smokers and/or in quitters may be useful to understand the association of smoking with BDNF. CI - (c) The Author 2014. Published by Oxford University Press on behalf of the Society for Research on Nicotine and Tobacco. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Jamal, Mumtaz AU - Jamal M AD - Institute of Psychology, Leiden University, Leiden, The Netherlands; mjamal@fsw.leidenuniv.nl. FAU - Van der Does, Willem AU - Van der Does W AD - Institute of Psychology, Leiden University, Leiden, The Netherlands; Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands; FAU - Elzinga, Bernet M AU - Elzinga BM AD - Institute of Psychology, Leiden University, Leiden, The Netherlands; FAU - Molendijk, Marc L AU - Molendijk ML AD - Institute of Psychology, Leiden University, Leiden, The Netherlands; FAU - Penninx, Brenda W J H AU - Penninx BW AD - Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands; LA - eng GR - MH081802/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140902 PL - England TA - Nicotine Tob Res JT - Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco JID - 9815751 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Adult MH - Brain-Derived Neurotrophic Factor/*blood/*genetics MH - Cohort Studies MH - Cross-Sectional Studies MH - Female MH - Genotype MH - Humans MH - Male MH - Methionine/genetics MH - Middle Aged MH - Netherlands/epidemiology MH - Polymorphism, Genetic/*genetics MH - Prospective Studies MH - Smoking/epidemiology/*genetics/metabolism MH - Tobacco Use Disorder/*blood/epidemiology/*genetics MH - Valine/genetics PMC - PMC4837993 EDAT- 2014/09/04 06:00 MHDA- 2015/08/19 06:00 PMCR- 2016/03/01 CRDT- 2014/09/04 06:00 PHST- 2014/09/04 06:00 [entrez] PHST- 2014/09/04 06:00 [pubmed] PHST- 2015/08/19 06:00 [medline] PHST- 2016/03/01 00:00 [pmc-release] AID - ntu151 [pii] AID - 10.1093/ntr/ntu151 [doi] PST - ppublish SO - Nicotine Tob Res. 2015 Mar;17(3):323-9. doi: 10.1093/ntr/ntu151. Epub 2014 Sep 2.