Changes in equine intestinal stem/progenitor cell number at resection margins in cases of small intestinal strangulation.
- Journal Article
- Animal Health
- Animal Science
- Animal Study
- Biomarkers
- Cell Proliferation
- Clinical Study
- Colic
- Disease Diagnosis
- Disease Treatment
- Equine Diseases
- Equine Health
- Equine Research
- Histomorphometry
- Immunofluorescence Assay
- Intestinal Pathology
- Intestinal Surgery
- Retrospective Study
- Stem Cells
- Veterinary Medicine
- Veterinary Research
Summary
The research article investigates whether changes in equine intestinal stem cells (ISC) have a direct impact on recovery from small intestinal strangulation (SIS) in horses. After analyzing intestinal resection margins, they found that the reduction in ISC may be linked with decreased chances of successful outcomes post-surgery in SIS cases.
Objective of the Study
The study aims to understand the behavior of intestinal stem cells (ISC) in horses suffering from small intestinal strangulation (SIS), specifically within the zones of resection margins. The main research questions include:
- Is injury identifiable at the resection margins using histomorphometry (a method to study the structure of biologic tissue)?
- Does ISC biomarker expression decrease at the proximal resection margin compared to controls and distal resection margin?
- Is ISC biomarker expression connected to number of preoperative risk factors, post-operative complications, or case outcome?
Methods Employed in the Study
- The study adopts a retrospective cohort study approach.
- Intestinal samples were collected from resection margins of adult horses with SIS and horses euthanized for reasons unrelated to colic.
- Medical records provided data on preoperative risk factors negatively impacting outcome, and post-operative complications.
- Histo-morphometry and immunofluorescence were used to examine tissue architecture and number of ISC and progenitor cells.
- One-way ANOVA was used for group comparisons, and linear regression modelling for identifying associations between biomarker expression and risk factors impacting outcome.
Findings of the Study
The study evaluated 36 instances of SIS. The results indicated that:
- Ki67 cell counts, which indicate cell proliferation, reduced in both proximal and distal resection margins in postoperatively euthanized horses compared to controls.
- An increase in SOX9 Ki67 cells, a specific type of ISC, at the distal resection margin was linked with a decrease in preoperative risk factors negatively related to outcome.
Conclusions of the Study
Even though the study had a small sample size, it concluded that the number of proliferating cells and ISC can potentially influence the outcome of SIS cases.
Cite This Article
Publication
Researcher Affiliations
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
- North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA.
Grant Funding
- K01 OD019911 / NIH HHS
- K01OD0199-01 / NIH HHS
- T35OD011070 / NIH HHS
Conflict of Interest Statement
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