| Autor: |
Moura Rocha NF; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Rua Cel Nunes de Melo 1127, CEP 60430-270 Fortaleza, Brazil., Venâncio ET, Moura BA, Gomes Silva MI, Aquino Neto MR, Vasconcelos Rios ER, de Sousa DP, Mendes Vasconcelos SM, de França Fonteles MM, de Sousa FC |
| Jazyk: |
angličtina |
| Zdroj: |
Fundamental & clinical pharmacology [Fundam Clin Pharmacol] 2010 Feb; Vol. 24 (1), pp. 63-71. Date of Electronic Publication: 2009 Jul 03. |
| DOI: |
10.1111/j.1472-8206.2009.00726.x |
| Abstrakt: |
(-)-Alpha-Bisabolol is an unsaturated, optically active sesquiterpene alcohol obtained by the direct distillation essential oil from plants such as Vanillosmopsis erythropappa and Matricaria chamomilla. (-)-Alpha-Bisabolol has generated considerable economic interest, since it possesses a delicate floral odor and has been shown to have anti-septic and anti-inflammatory activity. The aim of this work was to evaluate the gastroprotective action of (-)-alpha-bisabolol on ethanol and indomethacin-induced ulcer models in mice, and further investigate the pharmacological mechanisms involved in this action. The oral administration of (-)-alpha-bisabolol 100 and 200 mg/kg was able to protect the gastric mucosa from ethanol (0.2 mL/animal p.o.) and indomethacin-induced ulcer (20 mg/kg p.o.). Administration of L-NAME (10 mg/kg i.p.), glibenclamide (10 mg/kg i.p.) or indomethacin (10 mg/kg p.o.) was not able to revert the gastroprotection promoted by (-)-alpha-bisabolol 200 mg/kg on the ethanol-induced ulcer. Dosage of gastric reduced glutathione (GSH) levels showed that ethanol and indomethacin reduced the content of non-protein sulfhydryl (NP-SH) groups, while (-)-alpha-bisabolol significantly decreased the reduction of these levels on ulcer-induced mice, but not in mice without ulcer. In conclusion, gastroprotective effect on ethanol and indomethacin-induced ulcer promoted by (-)-alpha-bisabolol may be associated with an increase of gastric sulfydryl groups bioavailability leading to a reduction of gastric oxidative injury induced by ethanol and indomethacin. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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