Desidrocrotonina : atividade antiulcerogenica, toxicidade e metabolização in vivo e in vitro

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

The major diterpene isolated from Cróton cajucar Benth trans-Dehydrocrotonin (DCD), was assayed for antiulcerogenic activity, acute and subcronic and toxicity and citotoxicity. The antiulcerogenic properties of DHC were studied on four induced gastric models in rat. The oral dose of 100 mg/Kg DHC showed a dignificance antiulcerogenic effect on hypothermic restrain stress, ethanol and pylorus ligature ulcers. No significance changes were found after DHC treatment on indomethacin-induced gastric lesions r on some gastric parameters such as wall mucus secretion rate, pH and total acid content. Acute toxilogical effects of DHC were assessed in mice. The ?LD IND.50? values were 876,0 mg/Kg and 47,2 mg/Kg for oral and intraperictoned administrations, respectively.In the subchoronic toxicity experiment rats were orally a significant dose-dependent increase in liver weighth was observed in both male and femele rats. Whereas in felefe rats a significance reduction in plasma alkaline.phospate and cholesterol levels and a increase sof gamma glutamyl trasnspeptasee and cholesterol levls and an icrease aos ggamma glutamyl transpeptidase was found only at high as doses (100 mg;/Kg ). The subcronic admintration of DHC also induc, noted by turgid tume-faction, microvamuete degeneration and cuclear alternatives . Depise the good ant-ucerogenic ou results suggest that the long term use of DHC my induce damage

ASSUNTO(S)

celulas - cultura e meios de cultura toxicidade - testes

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