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Updated: Jun 23, 2025
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Intestinal Stem Cell Isolation and Culture in a Porcine Model of Segmental Small Intestinal Ischemia
Published on: May 18, 2018
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Intraluminal oxygen can keep small bowel mucosa intact in a segmental ischemia model
Guido Trentadue1, Peter B F Mensink2, Claudius Kruse3,4
1Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ, Groningen, The Netherlands. g.trentadue@umcg.nl.
Scientific Reports
|June 14, 2024
Summary
Intraluminal oxygen delivery preserves intestinal tissue during ischemia. This simple method improves viability and mucosal integrity, offering potential for better organ preservation in transplantation.
Area of Science:
- Transplantation research
- Gastroenterology
- Surgical innovation
Background:
- Intestinal preservation for transplantation often involves ischemia, leading to organ damage.
- Current intraluminal oxygen methods are not clinically applicable in large animal models.
Purpose of the Study:
- To evaluate a simple, clinically approachable intraluminal oxygen system for preventing ischemic damage in a large animal model.
- To assess the efficacy of intraluminal oxygen during warm ischemia in pigs.
Main Methods:
- A no-flow ischemia model of the small intestine was used in pigs.
- A low-flow, high-pressure intraluminal oxygen system was applied to 6 pigs; 6 served as controls.
- Mucosal histopathology, hypoxia, and barrier markers were assessed after 2 hours of ischemia.
Main Results:
- The intraluminal oxygen group showed preserved small bowel appearance, viability, and mucosal integrity.
- Histopathology, barrier markers, and hypoxia-inducible factor 1-α expression showed gradual deterioration away from the oxygen delivery site.
- Intraluminal oxygen delivery mitigated ischemic damage in the treated group compared to controls.
Conclusions:
- Low-flow, high-pressure intraluminal oxygen delivery effectively preserves intestinal mucosa during total small intestine ischemia.
- This technique offers a promising strategy to improve intestinal preservation for transplantation and overcome ischemia-related damage.
