家族性高コレステロール血症におけるリポタンパク質(a)
Ali K Jaafar1, Steeve Bourane2, Gilles C Lambert2
1EMBL Australia Node for Single Molecule Sciences and School of Biomedical Sciences, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia.
Current opinion in lipidology
|February 28, 2026
まとめ
家族性高コレステロール血症(FH)患者は、主要な心血管リスク因子であるリポタンパク質(a) [Lp(a)]の高値を有することが多い。LDLコレステロールを標的とする現在の治療法ではLp(a)リスクに完全に対処できないため、新しい治療法が必要である。
科学分野:
- 心血管医学
- 脂質代謝
- 遺伝学
背景:
- 家族性高コレステロール血症(FH)は、低密度リポタンパク質(LDL)コレステロールの高値が特徴である。
- リポタンパク質(a) [Lp(a)]の高値は、心血管疾患(CVD)の重要かつ独立したリスク因子である。
- 高LDLコレステロールと高Lp(a)の脂質プロファイルは、心血管の健康にとって特に有害である。
研究 の 目的:
- 2026年1月以前に出版されたLp(a)代謝に関する文献をレビューする。
- FH患者におけるLp(a)とCVDリスクの関連を調べる。
- FHの脂質プロファイルにおけるLp(a)の役割を理解する。
主な方法:
- 系統的文献レビュー。
- Lp(a)の代謝とクリアランスに関する研究の分析。
- Lp(a)高値を有するFHにおけるCVDリスクに関する臨床的証拠の評価。
主要な成果:
- Lp(a)はFHコホートで一貫して上昇しており、診断基準にも一部起因する。
- Lp(a)の肝臓への取り込みにおけるLDL受容体の役割は、以前考えられていたよりも重要ではない。
- 薬理学的なLDLコレステロール低下は、FHにおけるLp(a)高値がもたらす特異的なCVDリスクを軽減しない。
結論:
- FH患者における系統的なLp(a)測定が推奨される。
- 高用量スタチンおよびPCSK9阻害薬は、FHにおけるLDL-C目標達成に不可欠である。
- Lp(a)低下療法は、Lp(a)高値のFH患者の治療に有望である。
関連する概念動画
Lipid-Lowering Drugs: Statins and Miscellaneous Agents
1.6K
Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
1.6K
Cholesterol: Significance and Regulation
1.8K
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
1.8K
Blood Studies for Cardiovascular System III: Serum Lipid Profile
711
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
711
Lipids: Dietary Sources and Requirements
2.4K
Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
2.4K
Lipid-derived Compounds in the Human Body
7.2K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
7.2K
Atherosclerosis I: Introduction
1.6K
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
1.6K


