Prevention of Ethanol-Induced Vascular Injury and Gastric Mucosal Lesions by Sucralfate and Its Components: Possible Role of Endogenous Sulfhydryls

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Abstract
We tested the hypothesis that sucralfate, which contains eight sulfate and aluminum molecules on a sucrose and its other components might decrease ethanol-induced vascular injury and hemorrhagic mucosal lesions through a sulfhydryl (SH)-sensitive process. Experiments performed in rats revealed that the entire sucralfate molecule is not a prerequisite for protection against ethanol-induced mucosal vascular injury and erosions. It appears that sulfate and sucrose octasulfate are potent components of sucralfate, although an equimolar amount of sucralfate is at least twice as effective in gastroprotection than its components. The SH alkylator N-ethylmaleimide abolished the gastroprotection by sucralfate, suggesting SH-sensitive process in the mucosal protection which seems to be associated with the prevention of rapidly developing vascular injury in the Stomach Of rats given ethanol.

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