Serour Mohamed H, Egaimi Musab, Khan Zahid
Cardiology, Sheikh Khalifa Specialty Hospital, Ras al Khaimah, ARE.
Medicine, Royal College of Physicians of Edinburgh, Edinburgh, GBR.
Cureus. 2024 Jun 3;16(6):e61572. doi: 10.7759/cureus.61572. eCollection 2024 Jun.
Atherosclerosis, a multifaceted pathogenic process affecting the arteries and aorta, poses a significant threat because of its potential to impede or entirely obstruct blood flow by narrowing blood vessels. This intricate progression involves various factors such as dyslipidemia, immunological responses, inflammation, and endothelial dysfunction. The initial phase manifests as the formation of fatty streaks, considered a pivotal hallmark in the inception of atherosclerotic plaques, a process that can commence as early as childhood. Over time, this process evolves, characterized by the thickening of the arterial inner layer (intima) and accumulation of lipid-laden macrophages, commonly known as foam cells, along with the buildup of the extracellular matrix. Subsequent stages witness the proliferation and aggregation of smooth muscle cells, culminating in the formation of atheroma plaques. As these lesions progress, apoptosis can occur in the deeper layers, further recruiting macrophages, which may undergo calcification and transform into atherosclerotic plaques. Notably, mechanisms such as arterial remodeling and intraplaque hemorrhage also contribute significantly to the progression of atherosclerotic cardiovascular disease, although these facets fall beyond the scope of this article. This study aimed to systematically review and conduct a meta-analysis of randomized controlled trials investigating the efficacy and safety of bempedoic acid in statin-intolerant patients with hyperlipidemia and to provide conclusions and recommendations accordingly. A systematic search of databases, such as PubMed, Web of Science, and Embase, will be performed. Only randomized trials will be included comparing bempedoic acid with placebo in statin-intolerant patients. This study aimed to provide a comprehensive understanding of the role of bempedoic acid in managing hyperlipidemia in statin-intolerant patients. In primary prevention, for patients unable to tolerate recommended statins, bempedoic acid was associated with a significant reduction in major adverse cardiovascular events (MACE) as the primary endpoint.
动脉粥样硬化是一种影响动脉和主动脉的多方面致病过程,由于其有可能通过使血管变窄来阻碍或完全阻塞血流,因而构成重大威胁。这一复杂进程涉及多种因素,如血脂异常、免疫反应、炎症和内皮功能障碍。初始阶段表现为脂肪条纹的形成,这被认为是动脉粥样硬化斑块形成初期的一个关键标志,该过程最早可在儿童期开始。随着时间的推移,这个过程不断演变,其特征是动脉内层(内膜)增厚,充满脂质的巨噬细胞(通常称为泡沫细胞)积聚,同时细胞外基质也在积累。随后的阶段会出现平滑肌细胞的增殖和聚集,最终形成动脉粥样斑块。随着这些病变的进展,更深层可能会发生细胞凋亡,进一步招募巨噬细胞,这些巨噬细胞可能会发生钙化并转化为动脉粥样硬化斑块。值得注意的是,动脉重塑和斑块内出血等机制也对动脉粥样硬化性心血管疾病的进展有显著影响,不过这些方面超出了本文的范围。本研究旨在系统回顾并对随机对照试验进行荟萃分析,以调查贝派地酸在他汀类药物不耐受的高脂血症患者中的疗效和安全性,并据此得出结论和提出建议。将对诸如PubMed、科学网和Embase等数据库进行系统检索。仅纳入在他汀类药物不耐受的患者中将贝派地酸与安慰剂进行比较的随机试验。本研究旨在全面了解贝派地酸在管理他汀类药物不耐受患者的高脂血症中的作用。在一级预防中,对于无法耐受推荐他汀类药物的患者,以主要不良心血管事件(MACE)作为主要终点,贝派地酸与该事件的显著减少相关。
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