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- Title
A genome screen for genes predisposing to bipolar affective disorder detects a new susceptibility locus on 8q.
- Authors
Cichon, S; Schumacher, J; Müller, D J; Hürter, M; Windemuth, C; Strauch, K; Hemmer, S; Schulze, T G; Schmidt-Wolf, G; Albus, M; Borrmann-Hassenbach, M; Franzek, E; Lanczik, M; Fritze, J; Kreiner, R; Reuner, U; Weigelt, B; Minges, J; Lichtermann, D; Lerer, B; Kanyas, K; Baur, M P; Wienker, T F; Maier, W; Rietschel, M; Propping, P; Nöthen, M M
- Abstract
Bipolar affective disorder (BPAD), also known as manic depressive illness, is a severe psychiatric disorder characterized by episodes of mania and depression. It has a lifetime prevalence of approximately 1% in all human populations. In order to identify chromosomal regions containing genes that play a role in determining susceptibility to this psychiatric condition, we have conducted a complete genome screen with 382 markers (average marker spacing of 9.3 cM) in a sample of 75 BPAD families which were recruited through an explicit ascertainment scheme. Pedigrees were of German, Israeli and Italian origin, respectively. Parametric and non-parametric linkage analysis was performed. The highest two-point LOD score was obtained on 8q24 (D8S514; LOD score = 3.62), in a region that has not attracted much attention in previous linkage studies of BPAD. The second best finding was seen on 10q25-q26 (D10S217; LOD score = 2.86) and has been reported in independent studies of BPAD. Other regions showing 'suggestive' evidence for linkage localized to 1p33-p36, 2q21-q33, 3p14, 3q26-q27, 6q21-q22, 8p21, 13q11 and 14q12-q13. In addition, we aimed at detecting possible susceptibility loci underlying genomic imprinting by analyzing the autosomal genotype data with the recently developed extension of the GENEHUNTER program, GENEHUNTER-IMPRINTING. Putative paternally imprinted loci were identified in chromosomal regions 2p24-p21 and 2q31-q32. Maternally imprinted susceptibility genes may be located on 14q32 and 16q21-q23.
- Publication
Human molecular genetics, 2001, Vol 10, Issue 25, p2933
- ISSN
0964-6906
- Publication type
Journal Article
- DOI
10.1093/hmg/10.25.2933