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Cited by 482

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Mechanisms of Disease Progression in Nonalcoholic Fatty Liver Disease

Jou, Janice, Choi, Steve, Diehl, Anna·2008·Seminars in Liver Disease

Abstract

Nonalcoholic fatty liver disease (NAFLD) encompasses a spectrum of hepatic pathology, ranging from simple steatosis (also called nonalcoholic fatty liver or NAFL) in its most benign form, to cirrhosis in its most advanced form. Nonalcoholic steatohepatitis (NASH) is an intermediate level of hepatic pathology. Hepatocyte accumulation of triglyceride is a hallmark of NAFL and NASH, but this sometimes subsides once cirrhosis has developed. Triglyceride storage per se is not hepatotoxic. Rather, it is a marker of increased exposure of hepatocytes to potentially toxic fatty acids. NAFL progresses to NASH when adaptive mechanisms that protect hepatocytes from fatty acid-mediated lipotoxicity become overwhelmed and rates of hepatocyte death begin to outstrip mechanisms that normally regenerate dead hepatocytes. This triggers repair responses that involve activation of hepatic stellate cells to myofibroblasts. The myofibroblasts generate excessive matrix and produce factors that stimulate expansion of liver progenitor populations. The progenitor cells produce chemokines to attract various kinds of inflammatory cells to the liver. They also differentiate to replace the dead hepatocytes. The intensity of these repair responses generally parallel the degree of hepatocyte death, resulting in variable distortion of the hepatic architecture with fibrosis, infiltrating immune cells, and regenerating epithelial nodules. As in other types of chronic liver injury, cirrhosis ensues in patients with NAFLD when repair is extreme and sustained, but ultimately unsuccessful, at reconstituting healthy hepatic epithelia.

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Crossref · 10.1055/s-0028-1091981

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Metadata

Authors
Jou, J., Choi, S., & Diehl, A.
Venue
Seminars in Liver Disease
Published
2008-10-27
Volume
28
Issue
04
Pages
370-379
ISSN
  • 0272-8087 (ISSN-L)
  • 1098-8971
OpenAlex
W2019048359
Cited by
482
References
12
FWCI
24.75
Type
journal article
Language
en
Open access
closed

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