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Murine Model of Intestinal Ischemia-reperfusion Injury
Published on: May 11, 2016
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Remote ischemic conditioning modulates the healing process after intestinal anastomosis.
Masahiro Shimizu1,2, George Biouss2, Jielin Yang2
1Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, Tokyo, Japan.
Pediatric Surgery International
|November 20, 2025
Summary
Remote ischemic conditioning (RIC) reduces early inflammation and improves intestinal anastomotic healing. This non-invasive method enhances mechanical strength and wound healing pathways, offering better surgical outcomes.
Area of Science:
- Gastroenterology
- Surgical Innovation
- Regenerative Medicine
Background:
- Intestinal anastomosis healing is crucial for surgical success.
- Early inflammation can impair anastomotic integrity.
- Modulating inflammatory responses may enhance healing.
Purpose of the Study:
- To determine if remote ischemic conditioning (RIC) improves intestinal anastomotic healing.
- To investigate RIC's effects on different phases of healing.
- To evaluate RIC's impact on inflammatory markers and functional outcomes.
Main Methods:
- Juvenile mice underwent distal ileal anastomosis.
- RIC involved cycles of hindlimb ischemia/reperfusion post-surgery.
- Analysis included cytokine expression (TNF-α, IL-6), bursting pressure, adhesion scores, and bulk RNA sequencing.
Main Results:
- RIC significantly reduced early pro-inflammatory cytokine (TNF-α, IL-6) expression.
- The RIC group showed higher bursting pressure and lower adhesion scores on POD 5.
- RNA sequencing revealed RIC upregulated wound healing pathways and downregulated inflammatory/apoptotic pathways.
Conclusions:
- RIC attenuates early inflammation and enhances mechanical strength in intestinal anastomoses.
- RIC demonstrates phase-specific effects on anastomotic healing.
- RIC presents a simple, non-invasive strategy to improve surgical outcomes.
