Endocrine Journal
Online ISSN : 1348-4540
Print ISSN : 0918-8959
ISSN-L : 0918-8959
ORIGINALS
NUDT3 rs206936 is associated with body mass index in obese Japanese women
Aya Kitamoto, Takuya Kitamoto, Seiho Mizusawa, Hajime Teranishi, Rina So, Tomoaki Matsuo, Yoshio Nakata, Hideyuki Hyogo, Hidenori Ochi, Takahiro Nakamura, Seika Kamohara, Nobuyuki Miyatake, Kazuaki Kotani, Ryoya Komatsu, Naoto Itoh, Ikuo Mineo, Jun Wada, Masato Yoneda, Atsushi Nakajima, Tohru Funahashi, Shigeru Miyazaki, Katsuto Tokunaga, Hiroaki Masuzaki, Takato Ueno, Kazuaki Chayama, Kazuyuki Hamaguchi, Kentaro Yamada, Toshiaki Hanafusa, Shinichi Oikawa, Toshiie Sakata, Kiyoji Tanaka, Yuji Matsuzawa, Kazuwa Nakao, Akihiro Sekine, Kikuko Hotta
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Keywords: NUDT3, Visceral adipose tissue, Subcutaneous fat tissue, Computed tomography, Japanese
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2013 Volume 60 Issue 8 Pages 991-1000

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Abstract

The predominant risk factor of metabolic syndrome is intra-abdominal fat accumulation, which is determined by waist circumference, waist-hip ratio measurements and visceral fat area (VFA); the latter can be accurately measured by performing computed tomography (CT). In addition to environmental factors, genetic factors play an important role in obesity and fat distribution. New genetic loci associated with body mass index (BMI) and adiposity have been identified by genome-wide association studies (GWASs). This study utilized CT to investigate whether single nucleotide polymorphisms (SNPs) that confer susceptibility to higher BMI are associated with VFA, subcutaneous fat area (SFA), and the ratio of VFA to SFA (V/S ratio). We measured the VFA and SFA of 1424 obese Japanese subjects (BMI ≥ 25 kg/m2, 635 men and 789 women) who were genotyped for 13 single nucleotide polymorphisms (SNPs) reported by recent GWASs, namely, TNNI3K rs1514175, PTBP2 rs1555543, ADCY3 rs713586, IRS1 rs2943650, POC5 rs2112347, NUDT3 rs206936, LINGO2 rs10968576, STK33 rs4929949, MTIF3 rs4771122, SPRY2 rs534870, MAP2K5 rs2241423, QPCTL rs2287019, and ZC3H4 rs3810291. The G-allele of NUDT3 rs206936 was significantly associated with increased BMI (P = 5.3 × 10-5) and SFA (P = 0.00039) in the obese Japanese women. After adjustment with BMI, the association between rs206936 and SFA was not observed. This significant association was not observed in the men. The other SNPs analyzed were not significantly associated with BMI, VFA, SFA, or V/S ratio. Our results suggest that NUDT3 rs206936 is associated with BMI in Japanese women.

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