Gastroprotective activity of synthetic coumarins: Role of endogenous prostaglandins, nitric oxide, non-protein sulfhydryls and vanilloid receptors.

Abstract:

:Natural or synthetic coumarins showed gastroprotective and antiulcer activity in animal models. In this study, we have synthetized twenty coumarins using classic methods to evaluate their gastroprotective effects on the ethanol/HCl-induced gastric lesion model in mice at 20mg/kg. Among the coumarins synthetized, compounds 6 and 10 showed the greatest gastroprotective activity being as active as lansoprazole at 20mg/kg and reducing gastric lesions by 75 and 76%, respectively. Then, in a second experiment, compounds 6 and 10 were re-evaluated in order to understand the possible mode of gastroprotective activity. Regarding coumarin 6, the protective effect was reduced by pre-treatment of the mice with N-ethylmaleimide and l-NAME suggesting that sulfhydryl compounds and endogenous nitric oxide are involved in its gastroprotective activity. While for coumarin 10 the effect was reduced by pre-treatment with indomethacin suggesting that prostaglandins are positively involved in its gastroprotective activity.

journal_name

Bioorg Med Chem Lett

authors

Sepulveda B,Quispe C,Simirgiotis M,Torres-Benítez A,Reyes-Ortíz J,Areche C,García-Beltrán O

doi

10.1016/j.bmcl.2016.10.056

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

5732-5735

issue

23

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(16)31094-0

journal_volume

26

pub_type

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