Abstract：
:The present study was designed to verify whether frutalin (FTL) affords gastroprotection against the ethanol-induced gastric damage and to examine the underlying mechanism(s). Gastric damage was induced by intragastric administration of 0.2 ml of ethanol (96%). Mice in groups were pretreated with FTL (0.25, 0.5 and 1 mg/kg; i.p.), cimetidine (100 mg/kg; p.o.), or vehicle (0.9% of NaCl, 10 mL/kg; p.o.), 30 min before ethanol administration. They were sacrificed 30 min later, the stomachs excised, and the mucosal lesion area (mm²) measured by planimetry. Gastroprotection was assessed in relation to inhibition of gastric lesion area. To study the gastroprotective mechanism(s), its relations to capsaicin-sensitive fibers, endogenous prostaglandins, nitric oxide, sulphydryls, ATP-sensitive potassium channels, adrenoceptors, opioid receptors and calcium channels were analyzed. Treatments effects on ethanol-associated oxidative stress markers GSH and MDA were measured in gastric tissue. FTL afforded a dose-unrelated gastroprotection against the ethanol damage. However, it failed to prevent the ethanol-induced changes in the levels of GSH and MDA. It was observed that the gastroprotection by FTL was greatly reduced in animals pretreated with capsazepine, indomethacin, L-NAME or glibenclamide. Considering the results, it is suggested that the FTL could probably be a good therapeutic agent for the development of new medicine for the treatment of gastric ulcer.
journal_name
Fitoterapiajournal_title
Fitoterapiaauthors
de Vasconcellos Abdon AP,Coelho de Souza G,Noronha Coelho de Souza L,Prado Vasconcelos R,Araújo Castro C,Moreira Guedes M,Pereira Lima RC Jr,de Azevedo Moreira R,de Oliveira Monteiro-Moreira AC,Rolim Campos Adoi
10.1016/j.fitote.2012.01.005subject
Has Abstractpub_date
2012-04-01 00:00:00pages
604-8issue
3eissn
0367-326Xissn
1873-6971pii
S0367-326X(12)00032-9journal_volume
83pub_type
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