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Abstract Title:

Methylsulfonylmethane is effective against gastric mucosal injury.

Abstract Source:

Eur J Pharmacol. 2017 Sep 15 ;811:240-248. Epub 2017 Jun 28. PMID: 28666801

Abstract Author(s):

Keyvan Amirshahrokhi, Ali-Reza Khalili

Article Affiliation:

Keyvan Amirshahrokhi

Abstract:

Methylsulfonylmethane (MSM) is a natural organosulfur compound has been widely used as a dietary supplement. MSM has protective effects against various disorders through its anti-inflammatory and antioxidant properties however the effect of MSM on gastric mucosal injury remains unclear. The aim of the present study is to determine whether MSM has beneficial effects on ethanol/HCl-induced gastric ulcer in mice. Macroscopic and histopathological evaluation of gastric mucosa revealed that ethanol/HCl administration produced apparent mucosal injuries, while pretreatment with MSM (200 and 400mg/kg, orally) could effectively protect gastric mucosa against the injuries caused by acidified ethanol. MSM significantly increased the levels of glutathione (GSH), catalase (CAT) and prostaglandin E(PGE), and decreased the levels of malondialdehyde (MDA), myeloperoxidase (MPO), carbonyl protein, and nitric oxide (NO) in gastric tissues compared with those in the ethanol group. MSM suppressed gastric inflammation by reducing the levels of proinflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, monocyte chemoattractant protein (MCP)-1 and matrix metalloproteinase (MMP)-9. Moreover, pretreatment of mice with MSM decreased the expression of nuclear factor kappa B (NF-κB) as a key regulator of inflammation in gastric mucosa. Taken together, these data suggestthat MSM is able to decrease the severity of ethanol/HCl-induced gastric mucosal injury through inhibition of oxidative stress and inflammation.

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