A sex-adjusted and age-adjusted genome screen for nested alcohol dependence diagnoses.
- Authors
- Corbett, J; Saccone, N L; Foroud, T; Goate, A; Edenberg, H; Nurnberger, J; Porjesz, B; Begleiter, H; Reich, T; Rice, J P
- Year
- 2005
- Journal
- Psychiatric genetics
- PMID
- 15722954
- DOI
- 10.1097/00041444-200503000-00005
Alcohol dependence is a complex disorder with a substantial genetic contribution to susceptibility. The Collaborative Study on the Genetics of Alcoholism is a multi-site study whose purpose is to detect, localize, and characterize genes contributing to this susceptibility. Previous linkage analyses of the trait of alcohol dependence in Collaborative Study on the Genetics of Alcoholism have used affected sib-pair methods with a dichotomous phenotype definition. In contrast, the analysis in this paper uses a sex-adjusted and age-adjusted multiple threshold liability model. The use of such a model, in that it includes unaffected as well as as affected subjects and in that it utilizes the differential severity of a diagnosis scale, should heuristically be more powerful than a straight affected sib-pair analysis. Three regions of interest are found on chromosome 1 (lod 5.17), chromosome 4 (lod 3.46), and chromosome 8 (lod 4.31). The region on chromosome 1 near the marker D1S532 is in the region previously reported as linked to alcohol dependence and correlated phenotypes in this dataset. The region on chromosome 4 near the alcohol dehydrogenase gene cluster has been reported to be linked to alcohol dependence in other studies, as well as to the alcohol consumption phenotype 'Maximum Number of Drinks in a 24-Hour Period' in this dataset. The region on chromosome 8 near the marker D8S1988 is homologous to a section of rat chromosome 5 to which an alcohol consumption phenotype has been linked.
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|---|---|---|---|---|
| A family-based robust multivariate association test using maximum statistic. | Hsieh TJ et al. | — | 2014 | → |
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