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• W2017356901 abstract "We have studied the effect of paracetamol and its pro-drug propacetamol on gastric mucosal damage induced by acetylsalicylic acid (ASA) and its possible relation to changes in gastric lipid peroxidation status in rats. Paracetamol or propacetamol were administered intragastrically 1h before ASA (300 mg kg(-1)) in the following equivalent doses: 62.5, 125.0 and 250.0 mg kg(-1) or 125.0, 250.0 and 500.0 mg kg(-1), respectively. The effects of the tested agents were compared to that of prostaglandin E2 (PGE2) 15, 30 and 60 mg kg(-1). Gastric ulcer formation was estimated morphometrically 4h after ASA administration. Malondialdehyde (MDA), glutathione (reduced, GSH, and oxidized, GSSG) and uric acid (UA) were determined in gastric mucosa and blood plasma and used as biochemical markers of the oxidative status. The results showed that paracetamol (250, 125, 62.5 mg kg(-1)) and propacetamol (500, 250, 125 mg kg(-1)) diminished the area of ASA-induced gastric lesions. The effect of propacetamol was more pronounced than that of paracetamol and similar to that of PGE2. Gastric MDA increased 3-fold in the ASA-group. The tested agents reduced it by a range of 30-70%. In all pretreated groups gastric glutathione and UA levels were found higher than that of control group and lower than that of ASA-group. Paracetamol and propacetamol, as well as PGE2, diminished the lipid peroxidation in plasma to a lesser extent than in gastric mucosa, but maintained elevated levels of the selective plasma antioxidant UA. These results show that the ASA-induced gastric mucosal damage is accompanied by the development of oxidative stress, evidenced by the accumulation of MDA, and concomitant initial activation of cell antioxidant defences. As paracetamol and propacetamol tend to decrease gastric lesions caused by ASA and alter gastric mucosal MDA, glutathione and UA values in a favorable manner, it could be suggested that their effects on the gastric mucosa could be related to interference with oxidative stress development." @default.
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• W2017356901 date "2002-08-01" @default.
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• W2017356901 title "EFFECTS OF PARACETAMOL AND PROPACETAMOL ON GASTRIC MUCOSAL DAMAGE AND GASTRIC LIPID PEROXIDATION CAUSED BY ACETYLSALICYLIC ACID (ASA) IN RATS" @default.
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• W2017356901 doi "https://doi.org/10.1016/s1043-6618(02)00083-x" @default.
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