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Abstract Title:

Amelioration of Ethanol-Induced Gastric Ulcers in Rats Pretreated with Phycobiliproteins of().

Abstract Source:

Nutrients. 2018 Jun 13 ;10(6). Epub 2018 Jun 13. PMID: 29899291

Abstract Author(s):

Oscar Guzmán-Gómez, Rosa Virginia García-Rodríguez, Lucía Quevedo-Corona, Ricardo Pérez-Pastén-Borja, Nora Lilia Rivero-Ramírez, Emmanuel Ríos-Castro, Salud Pérez-Gutiérrez, Julia Pérez-Ramos, Germán Alberto Chamorro-Cevallos

Article Affiliation:

Oscar Guzmán-Gómez

Abstract:

Phycobiliproteins of()have attracted attention because of their potential therapeutic antioxidant properties. The aim of this study was to assess the possible antiulcerogenic activity of these phycobiliproteins (ExPhy) against ethanol-induced gastric ulcers in rats. To explore the possible mechanisms of action, we examined antioxidant defense enzymes (e.g., catalase, superoxide dismutase, and glutathione peroxidase), as well as the level of lipid peroxidation (MDA) and the histopathological changes in the gastric mucosa. Intragastric administration of ExPhy (100, 200, and 400 mg/kg body weight) significantly lowered the ulcer index value compared to the ulcer control group (<0.05). The greatest protection was provided by the concentration of 400 mg/kg. The histological study supported the observed gastroprotective activity of ExPhy, showing a reduced inflammatory response. Moreover, the alcohol-induced decrease in stomach antioxidant enzyme activity found in the ulcer control group was prevented by ExPhy pretreatment. Furthermore, ExPhy reversed the ethanol-induced increase in lipid peroxidation. In summary, the antiulcerogenic potential of ExPhy may be due, at least in part, to its anti-oxidant and anti-inflammatory effects.

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Sayer Ji
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