Aspects of hepatotoxicity associated with

VPA have been fully unfolded [10]. Type I VPA-mediated hepatic injury is associated with a dose-dependent rise in serum liver enzymes and decline in plasma albumin. Type II VPA-mediated hepatotoxicity is a fatal, irreversible idiosyncratic reaction that is characterized by microvesicular steatosis and necrosis [11]. Although the mechanisms involved are not fully characterized, a large www.selleckchem.com/products/cl-amidine.html body of evidence suggests that reactive VPA metabolites (i.e., 4-ene-VPA and its subsequent metabolite, 2,4-diene-VPA) may mediate the hepatotoxicity by inhibiting mitochondrial β-oxidation of FAs. Further, excessive generation of reactive oxygen species (ROS) (such as peroxides and hydroxyl radical) may follow the toxicity of VPA as a consequence of disrupting the liver antioxidant machinery [10, 24, 25]. Although DHA has demonstrated protection against some drug-induced systemic toxicity [17], its impact on VPA-induced liver injury has never been sought. These views prompted us to evaluate whether, and how, DHA may obliterate VPA hepatotoxicity. Accordingly, when DHA was jointly given with VPA, serum liver marker enzyme levels (ALP, ALT and γ-GT) significantly declined, thereby suggesting the utility of DHA in protecting liver cell integrity and maintaining healthy biliary outflow.

Further, DHA raised serum albumin levels, consonant

with restoration of liver protein synthetic capacity. More such Dasatinib in vivo clues were provided from the present histopathologic studies, which depicted the capacity of DHA to ameliorate VPA-evoked hepatocellular degeneration, infiltration of inflammatory cells, induction of focal pericentral necrosis, and micro/macrovesicular steatosis. Next, it was both worthy and intriguing to unravel the cellular and molecular means whereby DHA abates VPA-evoked liver injury. Thus, DHA markedly replenished hepatic GSH levels to near baseline and blunted lipid peroxide (MDA) levels, thereby alleviating VPA-induced oxidative stress. In support, in animal models of alcohol fatty liver, DHA terminated oxidative stress Carbohydrate and mitochondrial dysfunction [25]. Besides, human nutritional studies in prevention of heart diseases revealed that supplementation with a daily 200–800 mg DHA enhanced its incorporation into LDL, thereby reducing its susceptibility to oxidation and accumulation of lipid peroxides [26, 27]. The possible second molecular trigger for hepatic protection by DHA is an anti-inflammatory and lipotropic effect. Inflammation and hepatic accumulation of triglycerides can foster/exacerbate oxidative stress and liver cell damage. DHA reportedly gets incorporated into liver cells, and can evidently suppress hepatic gene expression of CHIR-99021 concentration proinflammatory cytokines [16, 20, 28].