INSIG2 gene rs7566605 polymorphism is associated with severe obesity in Japanese

Kikuko Hotta, Michihiro Nakamura, Yoshio Nakata, Tomoaki Matsuo, Seika Kamohara, Kazuaki Kotani, Ryoya Komatsu, Naoto Itoh, Ikuo Mineo, Jun Wada, Hiroaki Masuzaki, Masato Yoneda, Atsushi Nakajima, Shigeru Miyazaki, Katsuto Tokunaga, Manabu Kawamoto, Tohru Funahashi, Kazuyuki Hamaguchi, Kentaro Yamada, Toshiaki HanafusaShinichi Oikawa, Hironobu Yoshimatsu, Kazuwa Nakao, Toshiie Sakata, Yuji Matsuzawa, Kiyoji Tanaka, Naoyuki Kamatani, Yusuke Nakamura

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The single nucleotide polymorphism (SNP) rs7566605 in the upstream region of the insulin-induced gene 2 (INSIG2) is associated with the obesity phenotype in many Caucasian populations. In Japanese, this association with the obesity phenotype is not clear. To investigate the relationship between rs7566605 and obesity in Japanese, we genotyped rs7566605 from severely obese subjects [n = 908, body mass index (BMI) ≥ 30 kg/m2] and normal-weight control subjects (n = 1495, BMI < 25 kg/m2). A case-control association analysis revealed that rs7566605 was significantly associated with obesity in Japanese. The P value in the minor allele recessive mode was 0.00020, and the odds ratio (OR) adjusted for gender and age was 1.61 [95% confidential interval (CI) = 1.24-2.09]. Obesity-associated phenotypes, which included the level of BMI, plasma glucose, hemoglobin A1c, total cholesterol, triglycerides, high-density lipoprotein (HDL) cholesterol, and blood pressure, were not associated with the rs7566605 genotype. Thus, rs7566605 in the upstream region of the INSIG2 gene was found to be associated with obesity, i.e., severe obesity, in Japanese.

Original languageEnglish
Pages (from-to)857-862
Number of pages6
JournalJournal of Human Genetics
Volume53
Issue number9
DOIs
Publication statusPublished - Sep 1 2008

    Fingerprint

Keywords

  • Association
  • Insulin-induced gene 2
  • Japanese population
  • Obesity
  • SNP

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Hotta, K., Nakamura, M., Nakata, Y., Matsuo, T., Kamohara, S., Kotani, K., Komatsu, R., Itoh, N., Mineo, I., Wada, J., Masuzaki, H., Yoneda, M., Nakajima, A., Miyazaki, S., Tokunaga, K., Kawamoto, M., Funahashi, T., Hamaguchi, K., Yamada, K., ... Nakamura, Y. (2008). INSIG2 gene rs7566605 polymorphism is associated with severe obesity in Japanese. Journal of Human Genetics, 53(9), 857-862. https://doi.org/10.1007/s10038-008-0317-8