PMID- 20951386 OWN - NLM STAT- MEDLINE DCOM- 20110815 LR - 20221207 IS - 1879-1379 (Electronic) IS - 0022-3956 (Linking) VI - 45 IP - 5 DP - 2011 May TI - Dysbindin (DTNBP1)--a role in psychotic depression? PG - 588-95 LID - 10.1016/j.jpsychires.2010.09.014 [doi] AB - Previous studies yielded evidence for dysbindin (DTNBP1) to impact the pathogenesis of schizophrenia on the one hand and affective disorders such as bipolar or major depressive disorder (MDD) on the other. Thus, in the present study we investigated whether DTNBP1 variation was associated with psychotic depression as a severe clinical manifestation of MDD possibly constituting an overlapping phenotype between affective disorders and schizophrenia. A sample of 243 Caucasian inpatients with MDD (SCID-I) was genotyped for 12 SNPs spanning 92% of the DTNBP1 gene region. Differences in DTNBP1 genotype distributions across diagnostic subgroups of psychotic (N = 131) vs. non-psychotic depression were estimated by Pearson Chi(2) test and logistic regression analyses adjusted for age, gender, Beck Depression Inventory (BDI) and the Global Assessment of Functioning Scale (GAF). Overall, patients with psychotic depression presented with higher BDI and lower GAF scores expressing a higher severity of the illness as compared to depressed patients without psychotic features. Four DTNBP1 SNPs, particularly rs1997679 and rs9370822, and the corresponding haplotypes, respectively, were found to be significantly associated with the risk of psychotic depression in an allele-dose fashion. In summary, the present results provide preliminary support for dysbindin (DTNBP1) gene variation, particularly SNPs rs1997679 and rs9370822, to be associated with the clinical phenotype of psychotic depression suggesting a possible neurobiological mechanism for an intermediate trait on the continuum between affective disorders and schizophrenia. CI - Copyright (c) 2010 Elsevier Ltd. All rights reserved. FAU - Domschke, Katharina AU - Domschke K AD - Department of Psychiatry, University of Muenster, Albert-Schweitzer-Strasse 11, D-48143 Muenster, Germany. katharina.domschke@ukmuenster.de FAU - Lawford, Bruce AU - Lawford B FAU - Young, Ross AU - Young R FAU - Voisey, Joanne AU - Voisey J FAU - Morris, C Phillip AU - Morris CP FAU - Roehrs, Tilmann AU - Roehrs T FAU - Hohoff, Christa AU - Hohoff C FAU - Birosova, Eva AU - Birosova E FAU - Arolt, Volker AU - Arolt V FAU - Baune, Bernhard T AU - Baune BT LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101015 PL - England TA - J Psychiatr Res JT - Journal of psychiatric research JID - 0376331 RN - 0 (Carrier Proteins) RN - 0 (DTNBP1 protein, human) RN - 0 (Dysbindin) RN - 0 (Dystrophin-Associated Proteins) SB - IM MH - Adult MH - Carrier Proteins/*genetics MH - Chi-Square Distribution MH - Chromosomes, Human, Pair 6/genetics MH - Depressive Disorder, Major/complications/*genetics MH - Dysbindin MH - Dystrophin-Associated Proteins MH - Female MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Male MH - Middle Aged MH - Polymorphism, Single Nucleotide/*genetics MH - Psychiatric Status Rating Scales MH - Psychotic Disorders/complications/*genetics MH - White People EDAT- 2010/10/19 06:00 MHDA- 2011/08/16 06:00 CRDT- 2010/10/19 06:00 PHST- 2010/06/08 00:00 [received] PHST- 2010/08/10 00:00 [revised] PHST- 2010/09/22 00:00 [accepted] PHST- 2010/10/19 06:00 [entrez] PHST- 2010/10/19 06:00 [pubmed] PHST- 2011/08/16 06:00 [medline] AID - S0022-3956(10)00281-5 [pii] AID - 10.1016/j.jpsychires.2010.09.014 [doi] PST - ppublish SO - J Psychiatr Res. 2011 May;45(5):588-95. doi: 10.1016/j.jpsychires.2010.09.014. Epub 2010 Oct 15.