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- W2896734013 abstract "Objective Metabolic disorders are often associated with liver steatosis and increased plasma cholesterol levels. However, the link between excessive lipid accumulation and impairments in cholesterol metabolism remains uninvestigated in the liver. Hence, a short treatment with a high-fat diet (HFD) was previously shown to promote excessive lipid accumulation in liver prior to the development of metabolic disorders. The present study intended to characterize how increases in liver fat alter the expression of several key regulators of hepatic cholesterol metabolism in response to a short-term HFD.
 Methods Young Wistar rats were randomly submitted either to HFD (n = 8) or a regular chow diet (RCD; n = 8) for 14 days.Liver tissue and blood were sampled .
 Results Increases in triglycerides were highly significant (P< 0.01) in liver but marginal in plasma of HFD rats. In contrast, the HFD resulted in higher (P< 0.01) cholesterol levels in plasma but not in liver samples. Gene expression of key markers involved in cholesterol uptake (LDL particles) including low density lipoprotein receptor-related protein-1 (LRP-1) and protein convertase subtilisin/kexin type 9 (PCSK9) along with ATP-binding cassette, superfamily G, member 5 (ABCG5) involved in cholesterol exportation viabile ducts were found to be higher (P< 0.05) in response to the HFD. In contrast, expression of 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), involved in cholesterol synthesis was down-regulated in liver
 Conclusions The data support the concept that excessive accumulation of lipids promptly alters the expression of key genes regulating cholesterol metabolism in liver. On a clinical point of view, this indicates that increases in plasma cholesterol occur after a short-term high fat diet." @default.
- W2896734013 created "2018-10-26" @default.
- W2896734013 creator A5017973826 @default.
- W2896734013 date "2018-09-29" @default.
- W2896734013 modified "2023-10-18" @default.
- W2896734013 title "PL-006 Expression of molecular markers of hepatic cholesterol metabolism are altered by a short-term high-fat diet" @default.
- W2896734013 doi "https://doi.org/10.14428/ebr.v1i1.8103" @default.
- W2896734013 hasPublicationYear "2018" @default.
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