Chari Suresh, Gupta Madhur
Department of Biochemistry, Indira Gandhi Medical College, Nagpur 440 018.
Indian J Physiol Pharmacol. 2003 Jul;47(3):343-6.
Chronic alcohol consumption is associated with increased incidence of variety of illnesses including cirrhosis. Studies have shown that ethanol consumption may result in increased oxidative stress with increased formation of lipid peroxides and free radicals. However, very few reports are available on their involvement in the toxicity of alcoholic cirrhosis. The present study was undertaken in 44 male subjects to evaluate the role of oxidative stress in liver injury with special reference to alcoholic or non alcoholic cirrhosis. It was observed that the parameters of liver function like total bilirubin, Alanine Transaminase (ALT), Aspartate Transaminase (AST), Alkaline Phosphatase (ALP), gamma Glutamyl transfarase (gammaGT) were increased in cirrhotic (alcoholic or non alcoholic) patients as compared to normal controls. However antioxidant enzymes like Superoxide dismutase (SOD) and Glutathine peroxidase (GPx) lipid peroxidation marker, Malondialdehyde (MDA) showed significant changes only in alcoholic cirrhosis and not in non alcoholic cirrhosis when compared with normal controls. The possibility of assessment of antioxidant enzymes to differentiate between alcoholic or non alcoholic or non alcoholic cirrhosis is postulated.
长期饮酒与包括肝硬化在内的多种疾病发病率增加有关。研究表明,乙醇摄入可能导致氧化应激增加,脂质过氧化物和自由基的形成增多。然而,关于它们与酒精性肝硬化毒性的关系,报道极少。本研究对44名男性受试者进行,以评估氧化应激在肝损伤中的作用,特别关注酒精性或非酒精性肝硬化。结果发现,与正常对照组相比,肝硬化(酒精性或非酒精性)患者的肝功能参数如总胆红素、丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、碱性磷酸酶(ALP)、γ-谷氨酰转移酶(γGT)均升高。然而,与正常对照组相比,抗氧化酶如超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GPx)以及脂质过氧化标志物丙二醛(MDA)仅在酒精性肝硬化中出现显著变化,而非酒精性肝硬化中未出现。据此推测了评估抗氧化酶以区分酒精性或非酒精性肝硬化的可能性。