2型糖尿病 (T2DM) の患者における脂質代謝関連炎症指数 (LMI) と外周動脈疾患 (PAD):中国と英国のバイオバンクからの多群研究
Yingying Wang1, Qijing Jiang2, Xiaoyan Li3
1Department of Biostatistics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
Cardiovascular diabetology
|August 23, 2025
まとめ
NHR,MHR,PHR,およびLHRを含む,脂質代謝関連の炎症指数 (LMI) の上昇は,2型糖尿病の高齢患者における外周動脈疾患 (PAD) のリスクの増加と関連しています. これらの関連性は,女性およびHbA1c値が高い女性においてより強く見られます.
科学分野:
- 心血管医学
- 代謝障害
- 炎症に関する研究
背景:
- 脂質代謝に関連する炎症指数 (LMI) は,動脈硬化症と心血管疾患の潜在的なバイオマーカーです.
- 2型糖尿病 (T2DM) の高齢患者における重大な合併症である.
研究 の 目的:
- 高齢T2DM患者におけるLMII (NHR,MHR,PHR,LHR) とPAD発生リスクとの関連を調査する.
- これらの関連における潜在的な集団の異質性と仲介要因を探求する.
主な方法:
- ジンシャンのコホートから2837人の高齢T2DM患者と英国バイオバンクから13,542人の分析.
- ロジスティックモデルとコックスの比例リスクモデル,一般化傾向スコア (GPS) の加重,E値,ネガティブコントロールの暴露 (NCE) の分析が採用された.
- 異質性と肝臓/腎臓機能の役割を評価するために,分層化および媒介分析が行われました.
主要な成果:
- 4つのLMII (NHR,MHR,PHR,LHR) は両方ともPADの発生リスクと正に関連していた.
- 関連性は,混同因子をコントロールした後も強固であり,女性およびHbA1c≥7%の個体ではより強かった.
- 推定グルメルフィルタレーション率 (eGFR) がメディエーターとして特定され,LMIとPADの関連性の10~20%を説明した.
結論:
- 高齢のT2DM患者では,LMIの上昇はPADのリスク増加と関連しています.
- 女性とHbA1cが高くなる集団では,より強い関連性がある.
- eGFRはLMIとPADの関係を媒介し,パーソナライズされた予防戦略のための潜在的なターゲットを示唆します.
関連する概念動画
Coronary Artery Disease I: Introduction
1.8K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.8K
Peripheral Artery Disease I: Introduction
659
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
659
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
764
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
764
Peripheral Artery Disease III: Interprofessional Care
655
Peripheral Artery Disease (PAD) is characterized by narrowed arteries that diminish blood flow to the extremities. Effective management of PAD requires an interprofessional approach involving various healthcare professionals. The critical aspects of interprofessional care for PAD patients focus on risk factor modification, drug therapy, exercise therapy, nutrition therapy, critical limb ischemia care, and interventional radiology and surgical procedures.The primary treatment goal for PAD...
655
Type II Diabetes I: Introduction
17
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
17
Type II Diabetes II: Pathophysiology
28
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
28


