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Updated: Feb 13, 2026

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TyG指数とMAFLDの重症度は,T2DM患者における亜臨床的LV機能不全と関連している:横断的な研究
Xiangsui Hu1, Hanwei Chen1, Ziying Wang2
1Department of Ultrasound, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China.
Frontiers in endocrinology
|February 12, 2026
まとめ
代謝機能障害に関連した脂肪肝疾患 (MAFLD) と高トリグリセリド・グルコース (TyG) インデックスは,2型糖尿病 (T2DM) のサブクリニック左心室機能障害 (SLVD) を予測します. 組み合わせた評価は,リスクの早期分層化のための簡単なツールを提供します.
科学分野:
- 心臓病学 心臓病学
- 肝臓病理学 肝臓病理学
- エンドクリノロジー エンドクリノロジー
背景:
- 代謝機能障害に関連する脂肪肝疾患 (MAFLD) は,2型糖尿病 (T2DM) で一般的であり,心筋の問題に関連しています.
- 繊維性-4 (Fib-4) インデックスとトリグリセリド・グルコース (TyG) インデックスは,それぞれ肝繊維症とインスリン抵抗性のマーカーであり,心血管疾患 (CVD) と関連しています.
- T2DM患者における下臨床左心室機能不全 (SLVD) にこれらのマーカーの影響は十分に理解されていません.
研究 の 目的:
- T2DM患者における肝繊維症,インスリン抵抗性 (IR),およびSLVDの関連性を調査する.
- Fib-4インデックスとTyGインデックスのSLVDに対する独立した相互作用効果を探求する.
- T2DMにおけるSLVDの発症におけるMAFLDの役割を評価する.
主な方法:
- 270人のT2DM患者が登録され,MAFLDは超音波検査で診断されました.
- 肝繊維症はFib-4指数を使用して評価され,IRはTyG指数を使用して推定されました.
- SLVDは,左心室全長ストレイン (LV GLS) によってエコーカルディオグラフィを介して決定され,SLVDは"LV GLSの値 <18%"と定義されました.
主要な成果:
- MAFLD患者は,MAFLDでない患者と比較して,より悪い脂質プロファイル,より高いTyG値,およびより低いLV GLSを持っていた.
- MAFLD (OR=3.21) とTyG指数 (OR=2.73) は,それぞれ独立して SLVD.を予測した.
- 高いFib-4指数 (≥1.3) と高いTyG指数 (≥9.03) の組み合わせは,最も高いSLVDリスク (OR=7.58) を示した.
結論:
- Fib-4指数とTyG指数は,T2DM患者におけるSLVDの独立した予測指標である.
- 肝繊維症とインスリン抵抗性の共存は,SLVD.に相乗効果を発揮する.
- Fib-4およびTyGインデックスの組み合わせ評価は,T2DMにおける早期のSLVDリスク分層化のための貴重な,非侵襲的なツールを提供します.
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