Journal
WORLD JOURNAL OF HEPATOLOGY
Volume 12, Issue 8, Pages -Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.4254/wjh.v12.i8.436
Keywords
Lipidomics; Non-alcoholic fatty liver disease; Non-alcoholic steatohepatitis; Lipotoxicity; Fatty acids; Ceramides
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Non-alcoholic fatty liver disease (NAFLD), the most common chronic liver disorder in Western countries, comprises steatosis to nonalcoholic steatohepatitis (NASH), with the latter having the potential to progress to cirrhosis. The transition from isolated steatosis to NASH is still poorly understood, but lipidomics approach revealed that the hepatic lipidome is extensively altered in the setting of steatosis and steatohepatitis and these alterations correlate with disease progression. Recent data suggest that both quantity and quality of the accumulated lipids are involved in pathogenesis of NAFLD. Changes in glycerophospholipid, sphingolipid, and fatty acid composition have been described in both liver biopsies and plasma of patients with NAFLD, implicating that specific lipid species are involved in oxidative stress, inflammation, and cell death. In this article, we summarize the findings of main human lipidomics studies in NAFLD and delineate the currently available information on the pathogenetic role of each lipid class in lipotoxicity and disease progression.
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