著者

Mineko Tsukamoto Asahi Hishida Takashi Tamura Mako Nagayoshi Rieko Okada Yoko Kubo Yasufumi Kato Nobuyuki Hamajima Yuichiro Nishida Chisato Shimanoe Rie Ibusuki Kenichi Shibuya Naoyuki Takashima Yasuyuki Nakamura Miho Kusakabe Yohko Nakamura Yuriko N. Koyanagi Isao Oze Takeshi Nishiyama Sadao Suzuki Isao Watanabe Daisuke Matsui Jun Otonari Hiroaki Ikezaki Sakurako Katsuura-Kamano Kokichi Arisawa Kiyonori Kuriki Masahiro Nakatochi Yukihide Momozawa Kenji Takeuchi Kenji Wakai Keitaro Matsuo

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20220341, (Released:2023-07-29)

参考文献数

72

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Background: The present genome-wide association study (GWAS) aimed to reveal the genetic loci associated with folate metabolites as well as to detect related gene-environment interactions in Japanese.Methods: We conducted the GWAS of plasma homocysteine (Hcy), folic acid (FA), and vitamin B12 (VB12) levels in the Japan Multi-Institutional Collaborative Cohort (J-MICC) Study participants who joined from 2005 to 2012, and also estimated gene-environment interactions. In the replication phase, we used data from the Yakumo Study conducted in 2009. In the discovery phase, data of 2,263 participants from four independent study sites of the J-MICC Study were analyzed. In the replication phase, data of 573 participants from the Yakumo Study were analyzed.Results: For Hcy, MTHFR locus on chr 1, NOX4 on chr 11, CHMP1A on chr 16, and DPEP1 on chr 16 reached genome-wide significance (P < 5×10-8). MTHFR also associated with FA, and FUT2 on chr 19 associated with VB12. We investigated gene-environment interactions in both studies and found significant interactions between MTHFR C677T and ever drinking, current drinking, and physical activity > 33% on Hcy (β = 0.039, 0.038 and -0.054, P = 0.018, 0.021 and < 0.001, respectively) and the interaction of MTHFR C677T with ever drinking on FA (β = 0.033, P = 0.048).Conclusions: The present GWAS revealed the folate metabolism-associated genetic loci and gene-environment interactions with drinking and physical activity in Japanese, suggesting the possibility of future personalized CVD prevention.

著者

Daisaku Nishimoto Rie Ibusuki Ippei Shimoshikiryo Kenichi Shibuya Shiroh Tanoue Chihaya Koriyama Toshiro Takezaki Isao Oze Hidemi Ito Asahi Hishida Takashi Tamura Yasufumi Kato Yudai Tamada Yuichiro Nishida Chisato Shimanoe Sadao Suzuki Takeshi Nishiyama Etsuko Ozaki Satomi Tomida Kiyonori Kuriki Naoko Miyagawa Keiko Kondo Kokichi Arisawa Takeshi Watanabe Hiroaki Ikezaki Jun Otonari Kenji Wakai Keitaro Matsuo

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20220354, (Released:2023-11-04)

参考文献数

35

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Background: Improving diets requires an awareness of the need to limit foods for which excessive consumption is a health problem. Since there are limited reports on the link between this awareness and mortality risk, we examined the association between awareness of limiting food intake (energy, fat, and sweets) and all-cause mortality in a Japanese cohort study.Methods: Participants comprised 58,772 residents (27,294 men; 31,478 women) aged 35–69 years who completed baseline surveys of the Japan Multi-Institutional Collaborative Cohort Study from 2004 to 2014. Hazard ratios (HRs) for all-cause mortality and 95% confidence intervals (CIs) were estimated by sex using a Cox proportional hazard model, with adjustment for related factors. Mediation analysis with fat intake as a mediator was also conducted.Results: The mean follow-up period was 11 years and 2,516 people died. Estimated energy and fat intakes according to the Food Frequency Questionnaire were lower in those with awareness of limiting food intake than in those without this awareness. Women with awareness of limiting fat intake showed a significant decrease in mortality risk (HR=0.73; 95% CI, 0.55 to 0.94). Mediation analysis revealed that this association was due to the direct effect of the awareness of limiting fat intake and that the total effect was not mediated by actual fat intake. Awareness of limiting energy or sweets intake was not related to mortality risk reduction.Conclusion: Awareness of limiting food intake had a limited effect on reducing all-cause mortality risk.