AI Article Synopsis
- The study aimed to explore how pre-treatment with Cromolyn Sodium (CS) affects intestinal mucosal mast cells and the small intestine during ischemia-reperfusion injury in rats.
- Thirty-two rats were divided into four groups, with one being a control group, while others received different doses of CS before inducing ischemia-reperfusion injury.
- Results showed that CS treatment significantly reduced damage indicators in the small intestine and helped maintain mast cell stability, suggesting it may protect against such injuries by preventing mast cell degranulation.
Article Abstract
Aim: To investigate the effects of Cromolyn Sodium (CS) pretreated prior to reperfusion on the activity of intestinal mucosal mast cells (IMMC) and mucous membrane of the small intestine in ischemia-reperfusion (IR) injury of rats.
Methods: Thirty-two Sprague-Dawley (SD) rats were randomly divided into four groups: sham group (group S), model group (group M), high and low dosage of CS groups, (treated with CS 50 mg/kg or 25 mg/kg, group C1 and C2). Intestinal IR damage was induced by clamping the superior mesenteric artery for 45 min followed by reperfusion for 60 min. CS was intravenouly administrated 15 min before reperfusion. Ultrastructure and counts of IMMC, intestinal structure, the expression of tryptase, levels of malondisldehyde (MDA), TNF-alpha, histamine and superoxide dismutase (SOD) activity of the small intestine were detected at the end of experiment.
Results: The degranulation of IMMC was seen in group M and was attenuated by CS treatment. Chiu's score of group M was higher than the other groups. CS could attenuate the up-regulation of the Chiu's score, the levels of MDA, TNF-alpha, and expression of tryptase and the down-regulation of SOD activity and histamine concentration. The Chiu's score and MDA content were negatively correlated, while SOD activity was positively correlated to the histamine concentration respectively in the IR groups.
Conclusion: Pretreated of CS prior to reperfusion protects the small intestine mucous from ischemia-reperfusion damage, the mechanism is inhibited IMMC from degranulation.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4434646 | PMC |
| http://dx.doi.org/10.3748/wjg.v13.i38.5139 | DOI Listing |
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