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Advances in sepsis-associated liver dysfunction

机译:败血症相关性肝功能障碍的研究进展

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Recent studies have revealed liver dysfunction as an early event in sepsis. Sepsis-associated liver dysfunction is mainly resulted from systemic or microcirculatory disturbances, spillovers of bacteria and endotoxin (lipopolysaccharide, LPS), and subsequent activation of inflammatory cytokines as well as mediators. Three main cell types of the liver which contribute to the hepatic response in sepsis are Kupffer cells (KCs), hepatocytes and liver sinusoidal endothelial cells (LSECs). In addition, activated neutrophils, which are also recruited to the liver and produce potentially destructive enzymes and oxygen-free radicals, may further enhance acute liver injury. The clinical manifestations of sepsis-associated liver dysfunction can roughly be divided into two categories: Hypoxic hepatitis and jaundice. The latter is much more frequent in the context of sepsis. Hepatic failure is traditionally considered as a late manifestation of sepsis-induced multiple organ dysfunction syndrome. To date, no specific therapeutics for sepsis-associated liver dysfunction are available. Treatment measure is mainly focused on eradication of the underlying infection and management for severe sepsis. A better understanding of the pathophysiology of liver response in sepsis may lead to further increase in survival rates. Keywords Sepsis liver dysfunction inflammation jaundice
机译:最近的研究表明,肝功能障碍是败血症的早期事件。脓毒症相关的肝功能障碍主要是由于全身或微循环障碍,细菌和内毒素(脂多糖,LPS)的溢出,以及随后的炎性细胞因子及介质的激活所致。引起败血症中肝反应的三种主要肝细胞类型是库普弗细胞(KCs),肝细胞和肝窦窦内皮细胞(LSEC)。另外,活化的嗜中性粒细胞也被募集到肝脏并产生潜在的破坏性酶和氧自由基,可能会进一步加剧急性肝损伤。败血症相关的肝功能障碍的临床表现可大致分为两类:缺氧性肝炎和黄疸。在败血症的情况下,后者更为常见。传统上,肝衰竭被认为是败血症诱发的多器官功能障碍综合征的晚期表现。迄今为止,尚无针对与脓毒症相关的肝功能障碍的特异性疗法。治疗措施主要集中在根除潜在感染和严重脓毒症的治疗上。对败血症中肝脏反应的病理生理学的更好理解可能会导致生存率进一步提高。关键词败血症肝功能不全炎症黄疸

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