NDLI: Bioassay-Guided Isolation of an Anti-Ulcer Compound, Tagitinin C, from Tithonia diversifolia: Role of Nitric Oxide, Prostaglandins and Sulfhydryls

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Bioassay-Guided Isolation of an Anti-Ulcer Compound, Tagitinin C, from Tithonia diversifolia: Role of Nitric Oxide, Prostaglandins and Sulfhydryls

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Bioassay-Guided Isolation of an Anti-Ulcer Compound, Tagitinin C, from Tithonia diversifolia: Role of Nitric Oxide, Prostaglandins and Sulfhydryls

Content Provider	MDPI
Author	Sánchez-Mendoza, María Elena Reyes-Ramírez, Adelfo Cruz Antonio, Leticia Martínez Jiménez, Luis Rodríguez-Silverio, Juan Arrieta, Jesús
Abstract	Tithonia diversifolia is a medicinal plant from the Municipality of Suchiapa, Chiapas, Mexico, that according to local folk medicine is considered useful in the treatment of gastric ulcers. The aim of the present study was to investigate the gastroprotective activity of T. diversifolia by using an ethanol-induced gastric ulcer experimental model in male Wistar rats. The results showed that T. diversifolia had gastroprotective activity, and that the dichloromethane extract had the highest protective activity (close to 90% when using doses between 10 to 100 mg/kg), and that further the compound tagitinin C isolated from this extract was the main active gastroprotective agent. Rats treated with tagitinin C suspended in Tween 80 at 1, 3, 10 and 30 mg/kg showed 37.7, 70.1, 100, and 100% gastroprotection, respectively. The effect elicited by tagitinin C (30 mg/kg) was not attenuated by pretreatment with either NG-nitro-L-arginine methyl ester (70 mg/kg, i.p.), a nitric oxide (NO) synthase inhibitor, N-ethylmaleimide (10 mg/kg, s.c.), a blocker of sulfhydryl groups, or indomethacin (10 mg/kg, s.c.), a blocker of prostaglandin synthesis, which suggests that the gastroprotective mechanism of action of this sesquiterpene lactone does not involve NO, sulfhydryl groups or prostaglandins.
File Size	70656
Ending Page	674
Page Count	10
Starting Page	665
File Format	PDF
e-ISSN	14203049
DOI	10.3390/molecules16010665
Journal	Molecules
Issue Number	1
Volume Number	16
Language	English
Publisher Date	2011-01-17
Access Restriction	Open
Subject Keyword	Tithonia diversifolia Asteraceae tagitinin C gastroprotection medicinal plants
Content Type	Text
Resource Type	Article

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