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ArtikelIsoflavone intake and risk of gastric cancer: a population-based prospective cohort study in Japan  
Oleh: Hara, Azusa ; Sasazuki, Shizuka ; Inoue, Manami ; Iwasaki, Motoki
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The American Journal of Clinical Nutrition vol. 95 no. 01 (Jan. 2012), page 147-154 .
Topik: CANCER; Isoflavones; Dietary Soy
Fulltext: A07 v95 n1 p147 kelik2022.pdf (125.38KB)
  • Perpustakaan FK
    • Nomor Panggil: A07.K.2012.01
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
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Isi artikelBackground: Isoflavones are structurally similar to 17ß-estradiol and may be able to prevent gastric cancer. However, there is contradictory evidence concerning the relation between the intake of soy food, which is rich in isoflavones, and gastric cancer. The association with gastric cancer might differ between isoflavones and soy foods, and research on the effects of isoflavone intake alone on gastric cancer is needed. Objective: We investigated the association between isoflavone intake and the incidence of gastric cancer. Design: We conducted a large, population-based prospective study of 39,569 men and 45,312 women aged 45–74 y. Dietary soy and isoflavone intakes were measured by using a validated food-frequency questionnaire in 1995 and 1998. Results: During 806,550 person-years of follow-up, we identified 1249 new gastric cancer cases. Isoflavone intake was not associated with gastric cancer in either men or women. Compared with the lowest quartile, the HR and 95% CI for developing gastric cancer in the fourth quartile of isoflavone intake was 1.00 (0.81, 1.24) for men and 1.07 (0.77, 1.50) for women. In a stratified analysis by exogenous female hormones (women only), however, we found an increasing trend in risk of gastric cancer associated with higher isoflavone intakes among exogenous female hormone users (P-trend = 0.03) but not for nonusers (P-interaction = 0.04). Conclusion: The current study does not support the hypothesis that higher intakes of isoflavones prevent gastric cancer in either men or women.
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