Silver Oxide Nanoparticles Alleviate Indomethacin-induced Gastric Injury: a Novel Antiulcer Agent

Overview

Journal Inflammopharmacology

Specialty Pharmacology

Date 2017 Dec 6

PMID 29204780

Citations 10

Authors

Neveen A Salem

Mohammed A Wahba

Wael H Eisa

Marwa El-Shamarka

Wagdy Khalil

Affiliations

Soon will be listed here.

Abstract

Silver and silver oxides are gaining interest in medical applications for their prominent antibacterial and antimicrobial potentials. Recent studies suggest that nanosilver oxide has remarkable anti-inflammatory effects and enhances wound healing. Nevertheless, its effect on gastric ulcer has not yet been illustrated. Thus the current study aimed to explore the prospect protective effect of nanosilver oxide against indomethacin-induced gastric ulcer. A new approach has been followed to synthesize nanosilver oxide. X-ray diffraction, UV-Vis spectroscopy and transition electron microscope techniques have been successfully used to characterize the synthesized nanoparticles. Treatment of ulcerated rats with different doses of nanosilver oxide especially (175 and 350 ppm/p.o.) alleviated adverse effects of indomethacin-induced gastric injury as demonstrated by decreasing ulcer index and elevating % of ulcer inhibition. These positive effects excelled those exerted by the reference antiulcer drug omeprazole. Nanosilver oxide suppressed gastric inflammation by reducing myeloperoxidase, tumor necrosis alpha, interleukin 1beta and interferon gamma. Moreover, nanosilver oxide halted gastric oxidative stress via inhibiting lipid peroxidation and enhancing glutathione and paraoxonase-1. Regarding gastric apoptosis, nanosilver oxide down regulated the expression of caspase 9, tumor protein 53, and nuclear factor kappa B and allograft inflammatory factor-1 genes. These findings emphasize the antiulcerogenic potential of nanosilver oxide against indomethacin-induced gastric ulcers which are multi-factorial including anti-inflammatory, antioxidant and antiapoptotic effects.

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