Exome‐based genome‐wide screening of rare variants associated with the risk of polycystic ovary syndrome

Autor: Satoshi Tamaoka, Kazuki Saito, Tomoko Yoshida, Kazuhiko Nakabayashi, Kenichi Tatsumi, Toshihiro Kawamura, Toshiya Matsuzaki, Keiko Matsubara, Hiroko Ogata‐Kawata, Kenichiro Hata, Yuko Kato‐Fukui, Maki Fukami
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Reproductive Medicine and Biology, Vol 22, Iss 1, Pp n/a-n/a (2023)
Druh dokumentu: article
ISSN: 1447-0578
1445-5781
DOI: 10.1002/rmb2.12504
Popis: Abstract Purpose Genetic factors associated with the risk of polycystic ovary syndrome (PCOS) remain largely unknown. Here, we conducted an optimal sequence kernel association test (SKAT‐O), an exome‐based rare variant association study, to clarify whether rare variants in specific genes contribute to the development of PCOS. Methods SKAT‐O was performed using exome data of 44 Japanese patients with PCOS and 301 control women. We analyzed frequencies of rare probably damaging variants in the genome. Results Rare variants of GSTO2 were more commonly identified in the patient group than in the control group (6/44 vs. 1/301; Bonferroni‐corrected p‐value, 0.028), while the frequencies of variants in other genes were comparable between the two groups. The identified GSTO2 variants were predicted to affect the function, structure, stability, hydrophobicity, and/or the formation of intrinsically disordered regions of the protein. GSTO2 encodes a glutathione transferase that mediates the oxidative stress response and arsenic metabolism. Previously, common variants in GSTO2 and its paralog GSTO1 were associated with the risk of PCOS. Conclusions The results indicate that there are no genes whose rare variants account for a large fraction of the etiology of PCOS, although rare damaging variants in GSTO2 may constitute a risk factor in some cases.
Databáze: Directory of Open Access Journals
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