The major goal of the proposed project is to identify the gene (or genes) predisposing to schizophrenia in the geographically isolated population of Palau, Micronesia. Four large extended pedigrees containing 22, 16, 20, and 20 ascertained cases of schizophrenia will be genotyped with the latest, high density Cooperative Human Linkage Center (CHLC) genome-wide screening set of DNA markers. Linkage analyses will be subjected to linkage disequilibrium analyses using all available pedigrees, including simplex families. Candidate genes mapping to a region of linkage or linkage disequilibrium may be analyzed using mutation scanning techniques. The applicant claims that identification of a disease-predisposing mutation will have implications for the etiology, diagnosis, pathogenesis, and treatment of schizophrenia.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Project (R01)
Project #
5R01MH056098-06
Application #
6186164
Study Section
Epidemiology and Genetics Review Committee (EPI)
Program Officer
Moldin, Steven Owen
Project Start
1996-08-01
Project End
2001-04-30
Budget Start
2000-05-01
Budget End
2001-04-30
Support Year
6
Fiscal Year
2000
Total Cost
$253,368
Indirect Cost
Name
University of California Irvine
Department
Psychiatry
Type
Schools of Medicine
DUNS #
046705849
City
Irvine
State
CA
Country
United States
Zip Code
92697
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Devlin, B; Bacanu, S-A; Roeder, K et al. (2002) Genome-wide multipoint linkage analyses of multiplex schizophrenia pedigrees from the oceanic nation of Palau. Mol Psychiatry 7:689-94
Devlin, B; Roeder, K; Otto, C et al. (2001) Genome-wide distribution of linkage disequilibrium in the population of Palau and its implications for gene flow in Remote Oceania. Hum Genet 108:521-8
Bennett, P J; Hoff, M; Rosenthal, J et al. (2000) Mutation screening of a neutral amino acid transporter, ASCT1, and its potential role in schizophrenia. Psychiatr Genet 10:79-82
Myles-Worsley, M; Coon, H; Tiobech, J et al. (1999) Genetic epidemiological study of schizophrenia in Palau, Micronesia: prevalence and familiality. Am J Med Genet 88:4-10
Lind, B; Hoff, M; Rosenthal, J et al. (1998) Analysis of chromosome 6 markers in eight Utah schizophrenia pedigrees. Psychiatr Genet 8:171-3
Coon, H; Myles-Worsley, M; Tiobech, J et al. (1998) Evidence for a chromosome 2p13-14 schizophrenia susceptibility locus in families from Palau, Micronesia. Mol Psychiatry 3:521-7