運動習慣と骨関連遺伝子多型が中高年者の超音波骨指標に及ぼす影響

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タイトル別名
  • EFFECTS OF HABITUAL EXERCISE AND CANDIDATE GENE POLYMORPHISMS RELATED TO BONE ON CALCANEAL QUANTITATIVE ULTRASOUND IN MIDDLE-AGED AND ELDERLY JAPANESE
  • ウンドウ シュウカン ト ホネ カンレン イデンシ タケイ ガ チュウコウネンシャ ノ チョウオンパコツ シヒョウ ニ オヨボス エイキョウ

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The purpose of this study was to investigate the interaction of habitual exercise and candidate gene polymorphisms related to bone on osteo sono-assessment index (OSI) by quantitative ultrasound (QUS) in middle-aged and elderly Japanese. Participants were classified into exercise group (E; n=172, 62.3 ± 7.7 yr) and sedentary group (S; n=65, 58.6 ± 9.2 yr). The OSI was measured with AOS-100. DNA was extracted from blood, and single nucleotide polymorphism in vitamin D receptor, estrogen receptor α, and transforming growth factor-βI were genotyped by TaqMan assay. Group E had significantly lower body weight and body mass index (BMI) than Group S. In men, although Group E was older than Group S, Group E had significantly higher OSI rather than Group S. There was no significant interaction between habitual exercise and each gene polymorphism on OSI. These results essentially remained unchanged even when analysis of covariance was applied after adjustment for age, body weight, and BMI. These results suggest habitual exercise and genetic factors have no interaction on OSI in middle-aged and elderly Japanese. Further investigations are needed to prove the interaction of other gene polymorphisms and exercise.

収録刊行物

  • 体力科学

    体力科学 58 (4), 421-430, 2009

    一般社団法人日本体力医学会

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