Ethanol has both direct and indirect toxic results about the liver as well as effects on numerous other organ systems from the body. Its direct effects may result from growing the fluidity of biologic membranes and thereby disrupting cellular functions. Its indirect effects about the liver are in component a consequence of its metabolism.
Ethanol is sequentially oxidized to acetaldehyde and then to acetate, with the generation of NADH and adenosine triphosphate (ATP). As a outcome of the high ratio of decreased to oxidized NAD that is generated, the pathways of fatty acid oxidation and gluconeogenesis are inhibited, whereas fatty acid synthesis is promoted.
Ethanol can also quantitatively and qualitatively alter the pattern of gene expression in various tissues but particularly in the liver, resulting in impaired homeostasis and greater sensitivity to other toxins. These along with other biochemical mechanisms may contribute towards the typical observation of fat accumulation in the liver of alcoholics and the tendency of hypoglycemia to produce in alcoholics whose liver glycogen has been depleted by fasting.
Ethanol metabolism also impacts the liver by generating acetaldehyde, which reacts with primary amino groups to inactivate enzymes, resulting in direct toxicity to the hepatocyte in which it's generated. Furthermore, proteins so modified might activate the immune program against antigens that had been previously tolerated as "self."
There may be substantial variation among people within the quantity of ethanol required to trigger acute liver injury. Regardless of whether nutritional, genetic, or other factors are responsible for these differences has not been determined. The specific pathologic features of alcoholic hepatitis include accumulation of Mallory's hyalin and infiltration of polymorphonuclear leukocytes.
It has been proven that adipocytes involved in fibrogenesis are active after chronic consumption of alcohol. vodka abuse
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