Boston Combined Residency Program, Boston Children's Hospital & Boston Medical Center, Boston, MA 02115, USA.
College of Medicine and Health, University College Cork, T12 YN60 Cork, Ireland.
Nutrients. 2024 May 29;16(11):1668. doi: 10.3390/nu16111668.
Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most prevalent type of liver disease worldwide. The exact pathophysiology behind MASLD remains unclear; however, it is thought that a combination of factors or "hits" act as precipitants for disease onset and progression. Abundant evidence supports the roles of diet, genes, metabolic dysregulation, and the intestinal microbiome in influencing the accumulation of lipids in hepatocytes and subsequent progression to inflammation and fibrosis. Currently, there is no cure for MASLD, but lifestyle changes have been the prevailing cornerstones of management. Research is now focusing on the intestinal microbiome as a potential therapeutic target for MASLD, with the spotlight shifting to probiotics, antibiotics, and fecal microbiota transplantation. In this review, we provide an overview of how intestinal microbiota interact with the immune system to contribute to the pathogenesis of MASLD and metabolic dysfunction-associated steatohepatitis (MASH). We also summarize key microbial taxa implicated in the disease and discuss evidence supporting microbial-targeted therapies in its management.
代谢相关脂肪性肝病(MASLD)是全球最常见的肝病类型。MASLD 的确切病理生理学机制尚不清楚;然而,人们认为多种因素或“打击”共同作用作为疾病发作和进展的诱因。大量证据支持饮食、基因、代谢失调和肠道微生物组在影响肝细胞内脂质堆积以及随后发展为炎症和纤维化中的作用。目前,MASLD 尚无治愈方法,但生活方式改变一直是管理的主要基石。目前的研究重点是肠道微生物组作为 MASLD 的潜在治疗靶点,研究重点转向益生菌、抗生素和粪便微生物群移植。在这篇综述中,我们概述了肠道微生物组如何与免疫系统相互作用,从而导致 MASLD 和代谢相关脂肪性肝炎(MASH)的发病机制。我们还总结了与疾病相关的关键微生物类群,并讨论了支持其管理中针对微生物的治疗方法的证据。
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