2020 Fiscal Year Final Research Report
SNP in the MTHFR and plasma Hcy level are involved in the prevention of stress fracture in female athletes
Project/Area Number |
19K19993
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 59020:Sports sciences-related
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Research Institution | Kinjo Gakuin University |
Principal Investigator |
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Project Period (FY) |
2019-04-01 – 2021-03-31
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Keywords | 疲労骨折 / Homocysteine / メチレンテトラヒドロ葉酸還元酵素(MTHFR) / 一塩基多型 / 女性長距離陸上選手 |
Outline of Final Research Achievements |
Genetic mutation in the enzyme MTHFR suggested that it has a different effect on bone strength than on bone mineral density. In addition, there was a significant tendency for those with the genetic mutation to have higher plasma pentosidine levels and to have experienced stress fractures. And, plasma pentosidine levels showed a significantly strong positive correlation with plasma homocysteine levels. Pentosidine and homocysteine have been reported as risk factors for fracture independent of bone mineral density. It was suggested that not only bone mineral density measurement but also determination of genetic mutation of MTHFR may be important for prevention and risk assessment in female long-distance runner athletes are at very high risk of stress fracture.
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Free Research Field |
骨質劣化(特に、MTHFRのSNPおよびホモシステイン)に着目した疲労骨折、脆弱性骨折の判定と予防
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Academic Significance and Societal Importance of the Research Achievements |
疲労骨折の予測手段として、従来はDEXA法による骨密度測定が主である。しかし、骨密度において骨折リスクを判別する閾値は存在しない。また、骨強度は、骨密度とそれ以外の因子である骨質によっても規定されることが報告されている。そのため、骨密度測定のみでのリスク判定は困難である。 本研究は、女性アスリートだけでなく「やせ」意識が高まる若年女性、また、脆弱性骨折のリスクが高まる高齢者の予防スクリーニングにも活用できる可能性がある。また、遺伝子変異の判定には唾液の採取のみで実施でき、侵襲性が低いことも利点である。
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