Harnessing Expression Data to Identify Novel Candidate Genes in Polycystic Ovary Syndrome DKK1 and DNAJB1 Genes in Polycystic Ovary Syndrome
2011

Identifying Genes Linked to Polycystic Ovary Syndrome

Sample size: 929 publication Evidence: moderate

Author Information

Author(s): Michelle R. Jones, Angela Chua, Yii-Der I. Chen, Xiaohui Li, Ronald M. Krauss, Jerome I. Rotter, Richard S. Legro, Ricardo Azziz, Mark O. Goodarzi

Primary Institution: Cedars-Sinai Medical Center

Hypothesis

Can gene expression studies help identify novel candidate genes for polycystic ovary syndrome (PCOS)?

Conclusion

The study suggests that genetic variation in the DKK1 and DNAJB1 genes may influence the metabolic and androgenic dysfunctions associated with PCOS.

Supporting Evidence

  • The study genotyped 335 PCOS cases and 198 controls in a discovery cohort.
  • A replication cohort included 396 PCOS cases and 306 controls.
  • No single nucleotide polymorphisms were associated with PCOS risk, but certain SNPs were linked to increased testosterone and insulin levels.

Takeaway

Researchers looked at genes to find out why some women have polycystic ovary syndrome, a condition that can cause problems like high testosterone and insulin resistance.

Methodology

The study involved genotyping SNPs in two cohorts of PCOS patients and healthy controls to assess associations with PCOS and related traits.

Potential Biases

Potential bias in candidate gene selection due to reliance on previous expression studies.

Limitations

The study's findings may not be generalizable due to the specific ethnic background of the cohorts.

Participant Demographics

The study included unrelated White women with PCOS and healthy controls.

Statistical Information

P-Value

0.0035 for DKK1 SNP rs1569198 and 0.003 for DNAJB1 SNP rs3962158

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0020120

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