Gastric Cytoprotective Activity of Dehydroleucidine in Rats. Role of Prostaglandins

Previously, we reported that dehydroleucodine (DhL), a sesquiterpene lactone, protected the gastric mucosa of rats from absolute ethanol-induced lesions in a dose-dependent fashion. The mechanism is not mediated by an antiacid secretory action and DhL stimulated mucous production. In the present stu...

Full description

Saved in:
Bibliographic Details
Published in:Biological & pharmaceutical bulletin 1998/04/15, Vol.21(4), pp.335-338
Main Authors: MARIA, Alejandra O. M., FRANCHI, Ana M., WENDEL, Graciela H., GIMENO, Martha, GUZMAN, Jorge A., GIORDANO, Oscar S., GUERREIRO, Eduardo
Format: Article
Language:English
Subjects:
dehydroleucodine
gastric cytoprotection
prostaglandin E
prostaglandin E2
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Previously, we reported that dehydroleucodine (DhL), a sesquiterpene lactone, protected the gastric mucosa of rats from absolute ethanol-induced lesions in a dose-dependent fashion. The mechanism is not mediated by an antiacid secretory action and DhL stimulated mucous production. In the present study, we report the effect of DhL on the mucosal production of prostaglandin E (PGE) and the mucosal release of PGE2 in rats stomach. DhL in acute treatment does not modify these values decreased by previous treatment with indomethacin or absolute ethanol. However, DhL in subchronic treatment significantly enhanced the mucosal production of PGE and the mucosal release of PGE2. Also, indomethacin pretreatment resulted in a significant reduction of the cytoprotective action of DhL. These results indicate the participation of endogenous prostaglandins in DhL protection against ethanol damage. Moreover, we suggest that the gastric protective activity of DhL against ethanol induced gastric mucosal damage is mediated, at least in part, through PGE and PGE2 in subchronic treatment.
ISSN:0918-6158
1347-5215
DOI:10.1248/bpb.21.335