UNIGE document Scientific Article
previous document  unige:8974  next document
add to browser collection
Title

Genetic heterogeneity in schizophrenia: stratification of genome scan data using co-segregating related phenotypes

Authors
Pulver, A. E.
Mulle, J.
Nestadt, G.
Swartz, K. L.
Dombroski, B.
Liang, K. Y.
Housman, D. E.
show hidden authors show all authors [1 - 14]
Published in Molecular Psychiatry. 2000, vol. 5, no. 6, p. 650-653
Abstract Despite considerable effort to identify susceptibility loci for schizophrenia, none have been localized. Multiple genome scans and collaborative efforts have shown evidence for linkage to regions on chromosomes 1q, 5q, 6q, 8p, 13q, 10p and 22q.(1-9) Heterogeneity is likely. We previously mapped schizophrenia susceptibility loci (SSL) to chromosomes 13q32 (P = 0.00002) and 8p21-22 (P= 0.0001) using 54 multiplex pedigrees and suggested linkage heterogeneity. We have now stratified these families based on co-segregating phenotypes in non-schizophrenic first degree relatives (schizophrenia spectrum personality disorders (SSPD); psychotic affective disorders (PAD)). Genome scans were conducted for these phenotypic subgroups of families and broadened affected phenotypes were tested. The SSPD group provided its strongest genome-wide linkage support for the chromosome 8p21 region (D8S1771) using either narrow (non-parametric lod (NPL) P= 0.000002) or broadened phenotypes (NPL P = 0.0000008) and a new region of interest on 1p was identified (P = 0.006). For PAD families, the peak NPL in the genome scan occurred on chromosome 3p26-p24 (P = 0.008). The identification of multiple susceptibility loci for schizophrenia may be enhanced by stratification of families using psychiatric diagnoses of the non-schizophrenic relatives.
Keywords Family HealthGenetic HeterogeneityGenome, HumanHumansLinkage (Genetics)PhenotypeSchizophrenia/ genetics
Identifiers
PMID: 11126395
Full text
Article - document accessible for UNIGE members only Limited access to UNIGE
Other version: http://www.nature.com/mp/journal/v5/n6/abs/4000814a.html
Structures
Citation
(ISO format)
PULVER, A. E. et al. Genetic heterogeneity in schizophrenia: stratification of genome scan data using co-segregating related phenotypes. In: Molecular Psychiatry, 2000, vol. 5, n° 6, p. 650-653. https://archive-ouverte.unige.ch/unige:8974

212 hits

1 download

Update

Deposited on : 2010-07-12

Export document
Format :
Citation style :