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- W2009511618 abstract "The role of the increased hepatocellular redox-state [( NADH]/[NAD+] ratio) as a mechanism underlying hepatic triglyceride deposition after acute ethanol dosing has been investigated in the rat. Following a single dose of ethanol (2 g/kg i.p.) in fasted rats, increases were observed at 1.5 hr in the hepatic [lactate]/[pyruvate] (133%), [3-hydroxybutyrate]/[acetoacetate] (69%) ratios, and the liver triglyceride concentration (129%). At the same time point, ethanol increased radioactivity incorporated into hepatic total lipid and triglyceride, after an injection of [U-14C] palmitic acid, by 76% and 158% respectively. Treatment of animals with Naloxone hydrochloride (2 mg/kg i.p.) at 1.0 hr and 2.5 hr after ethanol abolished these ethanol-mediated redox-state changes, without inhibiting ethanol oxidation or affecting hepatic acetaldehyde levels. This, however, did not prevent completely the triglyceride accumulation in the liver or reverse the enhanced uptake of radio-labelled palmitate caused by ethanol. Administration of sorbitol (3.5 g/kg i.p.) caused 109%, 57% and 200% increases in the hepatic [lactate]/[pyruvate], [3-hydroxybutyrate]/[acetoacetate] ratios and glycerol-3-phosphate concentrations respectively. However, the hepatic triglyceride concentration and the incorporation of [U-14C] palmitic acid into hepatic lipids were not influenced by this treatment. In vitro studies in which rat liver slices were incubated with [1-14C] palmitic acid also indicated that the altered [NADH]/[NAD+] ratio was not responsible for the decreased rate of fatty acid oxidation seen after ethanol administration or after the addition of ethanol to the incubation medium. In conclusion, these experiments indicate that increases in the hepatic [NADH]/[NAD+] ratio resulting from ethanol oxidation may not be directly implicated in the altered hepatic fatty acid utilisation and triglyceride deposition observed after acute ethanol administration in rats." @default.
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- W2009511618 title "The role of the hepatocellular redox state in the hepatic triglyceride accumulation following acute ethanol administration" @default.
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- W2009511618 doi "https://doi.org/10.1016/0006-2952(86)90402-8" @default.
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