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Updated: Feb 4, 2026
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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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Expanding intestinal segment using osmotic hydrogel: An in vivo study
Riccardo Coletta1,2,3, Claudio Olivieri4, Giorgio Persano3
1Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK.
Summary
An endoluminal osmotic hydrogel expander (EOHE) safely expanded rabbit intestines, increasing length by over 160%. This novel approach shows promise for treating short bowel syndrome by enabling bowel lengthening procedures.
Area of Science:
- Biomedical Engineering
- Gastroenterology
- Regenerative Medicine
Background:
- Short Bowel Syndrome (SBS) necessitates bowel lengthening procedures.
- Current methods for intestinal expansion are limited.
- Novel strategies for inducing intestinal growth are needed.
Purpose of the Study:
- To evaluate the efficacy and safety of an endoluminal osmotic hydrogel expander (EOHE) for intestinal expansion.
- To assess the potential of EOHE as a method for bowel lengthening in SBS patients.
Main Methods:
- An EOHE was inserted into isolated intestinal segments of New Zealand rabbits.
- Control segments were used for comparison.
- Segments were analyzed after 4 weeks for changes in length, weight, and histology.
Main Results:
- EOHE significantly increased intestinal segment length by 167.8% compared to 23.03% in controls (p < 0.01).
- Intestinal dilatation increased by 214.4% with EOHE versus 34.59% in controls (p < 0.01).
- Histology showed muscle hypertrophy and epithelial flattening without significant inflammation or weight loss.
Conclusions:
- EOHE facilitates safe and effective intestinal expansion, including significant lengthening and dilatation.
- This technique holds potential for developing new bowel lengthening strategies for short bowel syndrome patients.
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