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一酸化炭素代謝の摂取と胃がんリスクにおけるAHCYポリモルフィズムとの相互作用:韓国における症例対照研究
Ha Thi Mien Nguyen1, Madhawa Gunathilake2, Jeonghee Lee2
1Department of Cancer Control & Population Health, Graduate School of Cancer Science and Policy, Goyang-si, Gyeonggi-do, Korea.
The British journal of nutrition
|August 27, 2025
まとめ
一酸化炭素代謝 (OCM) に関する栄養素の摂取量が増えると,胃がん (GC) のリスクが低下する可能性があります. この保護効果は,AHCY rs819173遺伝子の変異によって影響される可能性があります.
科学分野:
- 栄養学
- ガン 流行 病学
- 遺伝学
背景:
- ガン発症におけるビタミンBとメチオニンの役割は不明である.
- 一酸化炭素代謝 (OCM) の栄養素は,S-アデノシルホモシステインヒドローラゼ (AHCY) と関連しており,OCMには極めて重要です.
- AHCY遺伝子は AHCYを調節し,OCM経路に影響を与える.
研究 の 目的:
- OCMの栄養素摂取と胃がん (GC) のリスクとの関連を調査する.
- OCMの栄養素摂取とAHCY rs819173のポリモルフィズムとの間の相互作用をGCリスクに関連して調べる.
主な方法:
- 症例対照試験は371例のGCと738例の対照群で行われました.
- 食事によるビタミンBとメチオニンの摂取量は,半量的な食物頻度アンケート (SQFFQ) を用いて評価された.
- 無条件のロジスティック回帰モデルは,オッズ比 (OR) と95%信頼区間 (CI) を計算するために使用されました.
主要な成果:
- OCM栄養素の総摂取量が高かったとGCリスクが逆に関連していた (aOR=0. 57).
- AHCY rs819173のポリモルフィズムとGCのリスクとの間に有意な直接的な関連は見つかりませんでした.
- 同位体型TT遺伝子型と高濃度のOCM栄養素を摂取した個人はGCリスクが著しく低かった (aOR=0. 49).
結論:
- ビタミンBとメチオニンの摂取量を増やすと,GCから保護できます.
- OCMの栄養素摂取とAHCY rs819173のポリモルフィズムとの相互作用は,GCのリスクを変化させる可能性があります.
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