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Research Techniques Made Simple: Using Genome-Wide Association Studies to Understand Complex Cutaneous Disorders.


ABSTRACT: Complex cutaneous disorders result from the combined effect of many different genes and environmental factors, with individual genetic variants often having only a modest effect on disease risk. The ability to examine large numbers of samples is required for correlating genetic variants with diseases/traits. Technological advances in high-throughput genotyping, along with mapping of the human genome and its associated inter-individual variation, have allowed genetic variants to be analyzed at high density in large case-control cohorts for many diseases, including several major skin diseases. These genome-wide association studies focus on showing differences in the frequencies of variants between case and control groups, rather than co-transmission of a variant and disease through a family, as is done in linkage studies. In this review, we provide overall guidance for genome-wide association study analysis and interpreting the results. Additionally, we discuss challenges and future directions for genome-wide association studies, focusing on translation of findings to provide biological and clinical implications for dermatology.

SUBMITTER: Tsoi LC 

PROVIDER: S-EPMC5903459 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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Research Techniques Made Simple: Using Genome-Wide Association Studies to Understand Complex Cutaneous Disorders.

Tsoi Lam C LC   Patrick Matthew T MT   Elder James T JT  

The Journal of investigative dermatology 20180301 3


Complex cutaneous disorders result from the combined effect of many different genes and environmental factors, with individual genetic variants often having only a modest effect on disease risk. The ability to examine large numbers of samples is required for correlating genetic variants with diseases/traits. Technological advances in high-throughput genotyping, along with mapping of the human genome and its associated inter-individual variation, have allowed genetic variants to be analyzed at hi  ...[more]

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