Abstract Title:

Antinociceptive effect and gastroprotective mechanisms of 3,5-diprenyl-4-hydroxyacetophenone from Ageratina pichinchensis.

Abstract Source:

Fitoterapia. 2013 Jun ;87:11-9. Epub 2013 Mar 22. PMID: 23529015

Abstract Author(s):

María Elena Sánchez-Mendoza, Juan Rodríguez-Silverio, José Fausto Rivero-Cruz, Héctor Isaac Rocha-González, Jorge Baruch Pineda-Farías, Jesús Arrieta

Article Affiliation:

María Elena Sánchez-Mendoza


The present study aimed to evaluate the antinociceptive activity (in inflammatory and neuropathic pain models) and gastroprotective effect of the 3,5-diprenyl-4-hydroxyacetophenone (HYDP), isolated from Ageratina pichinchensis. The gastroprotective activity of this plant was previously reported by our workgroup, finding encesanescin to be one active compound. The present results show that HYDP reduced nociception in a dose-dependent manner in carrageenan and L5/L6 spinal nerve ligation, with efficacies of 72.6 and 57.1%, respectively, at doses of 100 and 562 mg/kg. HYDP also showed gastroprotective activity in the model of ethanol-induced gastric lesion, with a 75.59% maximum inhibition of ulcers at a dose of 100mg/kg. This gastroprotective effect was attenuated by N(G)-nitro-L-arginine methyl ester, indomethacin and N-ethylmaleimide, indicating that NO, prostaglandins and sulfhydryl groups are involved in the mechanisms of action. This is the first evidence, to our knowledge, of the antinociceptive and gastroprotective activities of HYDP.

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