1型糖尿病患者におけるメタボリック機能不全に関連した脂肪性肝疾患の特徴
Adeyinka Taiwo1,2, Himani Thakkar3, J Alan Maschek4
1Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Iowa, 200 Hawkins Dr., E400 GH, Iowa City, 52242, IA, USA. adeyinka-taiwo@uiowa.edu.
Scientific reports
|August 23, 2025
まとめ
1型糖尿病と代謝機能障害に関連した脂肪性肝疾患 (MASLD) の個人は,より高いBMIとインスリン抵抗性を示しています. 循環するセラミド,ダイアシルグリセロール,トライアシルグリセロールの上昇は,この集団におけるMASLDの発症と関連しています.
科学分野:
- 内分泌学
- ヘパトロジー
- メタボリックシンドローム
背景:
- メタボリック機能不全に関連した脂肪酸性肝疾患 (MASLD) は,メタボリックシンドロームの肝臓発現である.
- MASLDが脂肪肝炎 (MASH) に進行すると,肝硬変,HCC,その他の悪性腫瘍のリスクが増加します.
- 2型糖尿病と比較して1型糖尿病におけるMASLDと脂質プロファイルに関するデータは限られている.
研究 の 目的:
- 1型糖尿病患者における主要な脂質種とMASLDとの関連を調査する.
- この患者群でMASLDに関連する特定の脂質バイオマーカーを特定する.
主な方法:
- 1型糖尿病の30人の参加者の横断的な研究.
- 標的型脂質の採血を断食で行う
- 制御された衰弱パラメータ (CAP) を使用したステアトーシスに対するFibroScan評価.
- CAPスコア ≥248で定義されたケース,CAPスコア <248で定義されたコントロール
主要な成果:
- MASLD患者は対照群よりも著しく高いBMIと24時間インスリン投与量を持っていた.
- 症例では,全セラミド,ダイアシルグリセロール,トライアシルグリセロールの循環レベルが上昇した.
- 循環中のジヒドロセラミド,セラミド,ダイアシルグリセロール,トライアシルグリセロールは,ステアトーシススコアと有意に相関していた.
- 脂質の種類が繊維症のスコアと相関していない.
結論:
- 1型糖尿病のMASLD患者はBMIが高く,インスリン抵抗性がある可能性が高い.
- 循環中のダイヒドロセラミド,セラミド,ダイアシルグリセロール,トライアシルグリセロールが増加することは,タイプ1糖尿病におけるMASLDの病原性に関連しています.
- これらの脂質は1型糖尿病におけるMASLDの潜在的バイオマーカーとして機能する.
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