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- W2102917541 abstract "Liver cirrhosis is associated with gastrointestinal haemorrhage and oesophageal variceal bleeding. Altered platelet functions has been reported to be a cause of bleeding complication. We carried out this study to find out the level of oxidative stress in the red blood cells of patients with liver cirrhosis.Fifty patients admitted with the complication of liver cirrhosis (with bleeding complications, n=30 and without bleeding complications, n=20) were included in the study. Age and sex matched normal healthy volunteers (n=45) served as controls. The levels of oxyhaemoglobin and methaemoglobin were assayed in the red blood cells. Oxidative stress markers such as lipid peroxides, lipid hydroperoxides and nitric oxide were determined along with enzymatic antioxidants. Membrane bound adenosine triphosphatases, cytosolic glucose-6-phosphate dehydrogenase and NADHmethaemoglobin reductase were also measured. The levels of cholesterol and total phospholipids were assessed in red blood cell membrane. The osmotic fragility of red blood cells was monitored using different concentrations of sodium chloride.The level of methaemoglobin was significantly higher (P < 0.001) in the red blood cells of liver cirrhotic patients with bleeding complication compared to that of non bleeding patients. The activity level of NADH-methaemoglobin reductase was significantly lower (P<0.001) compared to that of normal subjects. Levels of oxidative stress markers including nitric oxide were found to be higher in patients. The levels of enzymatic antioxidants were low except of glutathione peroxidase. The activity levels of adenosine triphosphatases were also found to be significantly lower (P<0.001) in patients compared to normal subjects. A significant alteration (P<0.05) was found in membrane cholesterol/phospholipid ratio of cirrhotic bleeders. Osmotic fragility of red blood cells was also altered in patients.In cirrhotic condition red blood cells are subjected to severe oxidative stress with significant alterations in the membrane properties." @default.
- W2102917541 created "2016-06-24" @default.
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- W2102917541 date "2007-09-01" @default.
- W2102917541 modified "2023-09-24" @default.
- W2102917541 title "Level of oxidative stress in the red blood cells of patients with liver cirrhosis." @default.
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