PMID- 23303061 OWN - NLM STAT- MEDLINE DCOM- 20140121 LR - 20211021 IS - 1740-634X (Electronic) IS - 0893-133X (Print) IS - 0893-133X (Linking) VI - 38 IP - 6 DP - 2013 May TI - Brain-derived neurotrophic factor serum levels and genotype: association with depression during interferon-alpha treatment. PG - 985-95 LID - 10.1038/npp.2012.263 [doi] AB - Depression has been associated with inflammation, and inflammation may both influence and interact with growth factors such as brain-derived neurotrophic factor (BDNF). Both the functional Val66Met BDNF polymorphism (rs6265) and BDNF levels have been associated with depression. It is thus plausible that decreased BDNF could mediate and/or moderate cytokine-induced depression. We therefore prospectively employed the Beck Depression Inventory-II (BDI-II), the Hospital Anxiety and Depression Scale (HADS), and the Montgomery-Asberg Depression Rating Scale (MADRS) in 124 initially euthymic patients during treatment with interferon-alpha (IFN-alpha), assessing serum BDNF and rs6265. Using mixed-effect repeated measures, lower pretreatment BDNF was associated with higher depression symptoms during IFN-alpha treatment (F144,17.2=6.8; P<0.0001). However, although the Met allele was associated with lower BDNF levels (F1,83.0=5.0; P=0.03), it was only associated with increased MADRS scores (F4,8.9=20.3; P<0.001), and not the BDI-II or HADS. An exploratory comparison of individual BDI-II items indicated that the Met allele was associated with suicidal ideation, sadness, and worthlessness, but not neurovegetative symptoms. Conversely, the serotonin transporter promoter polymorphism (5-HTTLPR) short allele was associated with neurovegetative symptoms such as insomnia, poor appetite and fatigue, but not sadness, worthlessness, or suicidal ideation. IFN-alpha therapy further lowered BDNF serum levels (F4,37.7=5.0; P=0.003), but this decrease occurred regardless of depression development. The findings thus do not support the hypothesis that decreasing BDNF is the primary pathway by which IFN-alpha worsens depression. Nonetheless, the results support the hypothesis that BDNF levels influence resiliency against developing inflammatory cytokine-associated depression, and specifically to a subset of symptoms distinct from those influenced by 5-HTTLPR. FAU - Lotrich, Francis E AU - Lotrich FE AD - Western Psychiatric Institute and Clinics, Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA. lotrichfe@upmc.edu FAU - Albusaysi, Salwa AU - Albusaysi S FAU - Ferrell, Robert E AU - Ferrell RE LA - eng GR - UL1 TR000005/TR/NCATS NIH HHS/United States GR - P30 MH090333/MH/NIMH NIH HHS/United States GR - R01MH090250/MH/NIMH NIH HHS/United States GR - P30MH090333/MH/NIMH NIH HHS/United States GR - R01 MH090250/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20121218 PL - England TA - Neuropsychopharmacology JT - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology JID - 8904907 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Interferon-alpha) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Biomarkers/blood MH - Brain-Derived Neurotrophic Factor/*blood MH - Cohort Studies MH - Depression/*blood/chemically induced/*genetics MH - Female MH - *Genotype MH - Hepatitis C, Chronic/blood/drug therapy/genetics MH - Humans MH - Interferon-alpha/*adverse effects/physiology MH - Male MH - Middle Aged MH - Neural Pathways/physiology MH - Polymorphism, Genetic/genetics MH - Treatment Outcome MH - Young Adult PMC - PMC3629388 EDAT- 2013/01/11 06:00 MHDA- 2014/01/22 06:00 PMCR- 2014/05/01 CRDT- 2013/01/11 06:00 PHST- 2013/01/11 06:00 [entrez] PHST- 2013/01/11 06:00 [pubmed] PHST- 2014/01/22 06:00 [medline] PHST- 2014/05/01 00:00 [pmc-release] AID - npp2012263 [pii] AID - 10.1038/npp.2012.263 [doi] PST - ppublish SO - Neuropsychopharmacology. 2013 May;38(6):985-95. doi: 10.1038/npp.2012.263. Epub 2012 Dec 18.