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Study Title:

Protective Effect of Methylsulfonylmethane in Caerulein-Induced Acute Pancreatitis and Associated Lung Injury in Mice

Study Abstract

Objectives: In the present study, we have elaborated the anti-inflammatory mechanism of MSM through homing of CD34+ stem cells towards an inflamed region by regulating hydrogen sulfide (H2 S) in an in vivo model of caerulein-induced acute pancreatitis (AP) and associated lung injury.

Methods: Male Swiss mice were treated with hourly intraperitoneal injections of caerulein (50 μg/kg) for 6 h. MSM (500 mg/kg) was administered intraperitoneally 1 h after the first caerulein injection (therapeutic). The serum amylase activity and myeloperoxidase (MPO) activity in lung and pancreas were measured. The levels of H2 S and interleukin (IL)-1β, cystathionine-γ-lyase (CSE) and CD34+ expressions in pancreas and lungs were determined by RT-PCR and ELISA.

Key findings: Methylsulfonylmethane significantly ameliorated pancreas and lung histopathological changes, decreased serum amylase, MPO activity and inhibited caerulein-induced IL-1β expression. Furthermore, MSM reduced caerulein-induced H2 S levels by alleviating the expression of CSE in pancreas and lungs and increased CD34 expression and inhibited nuclear factor (NF)-κB translocation in caerulein-induced AP and associated lung injury.

Conclusions: These findings indicate that MSM can effectively reduce inflammatory responses and induce the homing of CD34+ cells to the injured tissues.
Keywords: CD34; acute pancreatitis; hydrogen sulfide; lung injury; methylsulfonylmethane.

Study Information

J Pharm Pharmacol . 2018 Sep;70(9):1188-1199. doi: 10.1111/jphp.12946. Epub 2018 Jul 3.

Full Study

https://pubmed.ncbi.nlm.nih.gov/29971769/
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