コーヒーと肝細胞癌のリスク:メンデルのランダム化研究の体系的レビューとメタ解析
Hyun Bin Choi1, Hyuk Kim1, Jeong-Ju Yoo1
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
Gut and liver
|August 25, 2025
まとめ
コーヒーの摂取は肝細胞癌 (HCC) のリスクを因果的に低下させるようには見えません. メンデルのランダム化研究は,以前の観察結果がコーヒーを過大評価していることを示唆しています.
科学分野:
- 胃腸科と肝臓科
- 遺伝的流行病学
- 癌 研究
背景:
- 観察研究では,コーヒーの摂取が肝細胞癌 (HCC) のリスクを低下させる可能性があることが示唆されています.
- しかし,これらの研究は,因果関係を疑い,混乱やバイアスを引き起こす可能性があります.
研究 の 目的:
- メンデルのランダム化 (MR) を用いて,コーヒー消費とHCCリスクの因果関係を調査する.
- 遺伝的に予測されたコーヒーの摂取が HCC の発症に影響するかどうかを評価する.
主な方法:
- メンデルのランダム化 (MR) による5つの研究の体系的レビューとメタ解析.
- インバース・バリエンス・ウェイト (IVW),MR-Egger,ウェイト・メディアンを含む分析方法を使用した.
- 評価された異質性と出版バイアス
主要な成果:
- MR分析では,コーヒーの摂取とHCCのリスクとの間に統計的に有意な関連性は示されなかった.
- 逆相差加重 (IVW) 分析では,確率比率は0. 92 (95%CI,0. 58から1. 47) であった.
- 中等から実質的な異質性は認められたが,出版バイアスは検出されなかった.
結論:
- 遺伝学的根拠に基づいた分析によると,コーヒーの摂取は肝細胞癌 (HCC) のリスクを因果的に低下させない.
- 以前の観察研究で報告された関連は,方法論的な限界のために過大評価される可能性があります.
- 栄養学的疫学における因果関係を確立するためのMR研究の重要性を強調する.
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