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2015 ; 11
(3
): 167-75
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Pathogenesis and Prevention of Hepatic Steatosis
#MMPMID27099587
Nassir F
; Rector RS
; Hammoud GM
; Ibdah JA
Gastroenterol Hepatol (N Y)
2015[Mar]; 11
(3
): 167-75
PMID27099587
show ga
Hepatic steatosis is defined as intrahepatic fat of at least 5% of liver weight.
Simple accumulation of triacylglycerols in the liver could be hepatoprotective;
however, prolonged hepatic lipid storage may lead to liver metabolic dysfunction,
inflammation, and advanced forms of nonalcoholic fatty liver disease.
Nonalcoholic hepatic steatosis is associated with obesity, type 2 diabetes, and
dyslipidemia. Several mechanisms are involved in the accumulation of intrahepatic
fat, including increased flux of fatty acids to the liver, increased de novo
lipogenesis, and/or reduced clearance through ?-oxidation or very-low-density
lipoprotein secretion. This article summarizes the mechanisms involved in the
accumulation of triacylglycerols in the liver, the clinical implications, and the
prevention of hepatic steatosis, with a focus on the role of mitochondrial
function and lifestyle modifications.