Comparing Genotype and Haplotype Approaches for Alcohol Dependence
Author Information
Author(s): Dushanthi Pinnaduwage, Laurent Briollais
Primary Institution: Mount Sinai Hospital, Toronto, Ontario, Canada
Hypothesis
Is there a performance advantage of haplotype-based association studies over genotype-based studies in identifying alcohol dependence susceptibility genes?
Conclusion
The study found no advantage of haplotype-based analyses over genotype-based analyses for identifying alcohol dependence susceptibility genes.
Supporting Evidence
- The most significant results were observed with genotype-based analyses on chromosomes 2 and 7.
- Haplotype-based analyses did not show any advantage over genotype-based analyses.
- The study included a large dataset from the Collaborative Study of Genetics of Alcoholism.
Takeaway
The researchers looked at two ways to find genes related to alcohol dependence and found that one method didn't work better than the other.
Methodology
The study used a whole-genome scan and fine-scale mapping with genotype- and haplotype-based association tests on the COGA dataset.
Limitations
Results may not be generalizable to other populations or chromosomal regions.
Participant Demographics
The sample included 143 families with 1,614 individuals from multiple ethnicities.
Statistical Information
P-Value
p = 0.0014
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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