A linkage study of schizophrenia with DNA markers from chromosome 8p21-p22 in 25 multiplex families

Schizophr Res. 1996 Oct 18;22(1):61-8. doi: 10.1016/0920-9964(96)00048-5.

Abstract

Two recent genome-wide searches for linkage (Lasseter et al., 1994; Moises et al., 1995) suggested that a susceptibility gene for schizophrenia might be located at chromosome 8p21-p22. We attempted to replicate these findings by performing a linkage study of schizophrenia with four DNA markers from this region using 25 multiply affected families. Neither the lod score method nor non-prametric extended sib-pair analysis yielded any evidence for linkage, even under the assumption of locus heterogeneity. We conclude that there is unlikely to be a major gene in the 8p21-p22 region which confers susceptibility to schizophrenia in our set of families. However we cannot exclude the possibility of a major gene present in other families, or of a susceptibility gene with a moderate but widespread effect which we cannot detect.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Autoradiography
  • Chromosomes, Human, Pair 22*
  • Chromosomes, Human, Pair 8*
  • Genetic Linkage*
  • Genotype
  • Humans
  • Pedigree*
  • Phenotype
  • Polymerase Chain Reaction
  • Polymorphism, Genetic
  • Schizophrenia / genetics*