A 3p26-3p25 genetic linkage finding for DSM-IV major depression in heavy smoking families

Michele L. Pergadia, Anne L. Glowinski, Naomi R. Wray, Arpana Agrawal, Scott F. Saccone, Anu Loukola, Ulla Broms, Tellervo Korhonen, Brenda W.J.H. Penninx, Julia D. Grant, Elliot C. Nelson, Anjali K. Henders, Andrew J. Schrage, Yi Ling Chou, Kaisu Keskitalo-Vuokko, Qin Zhu, Scott D. Gordon, Jacqueline M. Vink, Eco J.C. De Geus, Stuart MacGregorJimmy Z. Liu, Gonneke Willemsen, Sarah E. Medland, Dorret I. Boomsma, Grant W. Montgomery, John P. Rice, Alison M. Goate, Andrew C. Heath, Jaakko Kaprio, Nicholas G. Martin, Pamela A.F. Madden

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Objective: The authors tested for genetic linkage of DSM-IV-diagnosed major depressive disorder in families that were ascertained for cigarette smoking. Method: Within a study that targeted families characterized by a history of smoking, analyses derived a subset of 91 Australian families with two or more offspring with a history of DSM-IV major depressive disorder (affected sibling pairs, N=187) and 25 Finnish families (affected sibling pairs, N=33). Within this affected sibling pairs design, the authors conducted nonparametric linkage analysis. Results: In the Australian heavy smoking families, the authors found a genome-wide significant multipoint LOD score of 4.14 for major depressive disorder on chromosome 3 at 24.9 cM (3p26-3p25). Conclusions: Genome-wide significant linkage was detected for major depressive disorder on chromosome 3p in a sample ascertained for smoking. A linkage peak at this location was also observed in an independent study of major depressive disorder.

Original languageEnglish
Pages (from-to)848-852
Number of pages5
JournalAmerican Journal of Psychiatry
Volume168
Issue number8
DOIs
StatePublished - Aug 2011

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