Possible Cytoprotective Mechanism in Rats of D-002, an Anti-ulcerogenic Product Isolated from Beeswax

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Abstract
D−002 is an anti-ulcerogenic product, isolated from beeswax, which consists of a well-defined mixture of higher primary aliphatic alcohols. It is highly effective against ethanol-induced ulcers. This study was designed to determine if D-002 shows cytoprotective properties on gastric mucosa in ethanol-induced ulcers. The involvement of endogenous prostaglandins in the protective effect of D−002 was also investigated. When a subulcerogenic dose of indomethacin (10 mg kg−1) was injected simultaneously with oral administration of ethanol, oral pre-treatment with D-002 (5−100 mg kg−1) partially inhibited the gastric protection. D-002 (5 and 25 mg kg−1) administered to normal rats significantly increased the soluble mucus content and also prevented its reduction in rats with ethanol-induced ulcers. In addition, D-002 administered at 5 and 25 mg kg−1 prevented the increase of vascular permeability induced by ethanol (60%) and reduced the concentration of thromboxane B2 (TXB2) in gastric mucosa of rats with ethanol-induced ulcers. These results support the hypothesis that the anti-ulcerogenic properties of D-002 could be related to a cytoprotective mechanism.