title: Lack of evidence for a major locus for bipolar disorder in the pericentromeric region of chromosome 18 in Irish pedigrees.
abstract: Seven families, multiply affected by bipolar mood disorder, have been collected from the Irish population and have been genotyped with microsatellite markers from the pericentromeric region of chromosome 18, a region that has been implicated as a site for a susceptibility gene for this relative common psychiatric disorder. The families significantly excluded linkage of bipolar disorder to this region under various models. Although the data provided no evidence of linkage heterogeneity among families, the number of families investigated may be too small to exclude completely the possibility of linkage in a small number of families.
authors.affiliation: Department of Genetics, Trinity College Dublin, Ireland.
authors.forename: L A
authors.initials: LA
authors.lastname: Mynett-Johnson
authors.forename: V E
authors.initials: VE
authors.lastname: Murphy
authors.forename: P
authors.initials: P
authors.lastname: Manley
authors.forename: D C
authors.initials: DC
authors.lastname: Shields
authors.forename: P
authors.initials: P
authors.lastname: McKeon
mesh_terms: D000328:Adult; D001714:Bipolar Disorder / Q000235:genetics* / Q000523:psychology; D002887:Chromosomes, Human, Pair 18 / Q000502:physiology*; D005260:Female; D008040:Genetic Linkage; D005838:Genotype; D006801:Humans; D007494:Ireland; D008297:Male; D018895:Microsatellite Repeats; D008957:Models, Genetic; D010375:Pedigree