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Murine Distal Colostomy, A Novel Model of Diversion Colitis in C57BL/6 Mice

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A possible animal model for critical colonisation.

K Ueda¹, T Akase, G Nakagami

¹Department of Nursing, University of Tokyo Hospital, Tokyo, Japan.

Journal of Wound Care

|July 10, 2010

Summary

This summary is machine-generated.

This study developed a critical colonization rat model using Pseudomonas aeruginosa. The model aids in understanding wound pathophysiology and developing new diagnostic and treatment protocols for critical colonization.

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The Citrobacter rodentium Mouse Model: Studying Pathogen and Host Contributions to Infectious Colitis

The Citrobacter rodentium Mouse Model: Studying Pathogen and Host Contributions to Infectious Colitis

Published on: February 19, 2013

Area of Science:

Wound healing research
Microbiology
Animal models

Background:

Critical colonization is a challenging phase in wound healing.
Understanding its pathophysiology is crucial for effective treatment.
Existing models may not fully capture the nuances of critical colonization.

Purpose of the Study:

To establish a novel rat model for critical colonization.
To investigate the pathophysiology of critical colonization in wounds.
To provide a platform for developing diagnostic and therapeutic strategies.

Main Methods:

Three groups of rats with dorsal wounds were used: control, Pseudomonas aeruginosa inoculated, and diabetic P. aeruginosa inoculated.
Wound assessment included gross and histopathological observations, inflammation quantification, serum C-reactive protein (CRP) levels, and bacterial counts.
Data were collected at days 1, 3, 5, and 7 post-wounding.

Main Results:

Wound healing was delayed in the P. aeruginosa group without significant inflammation.
Bacterial loads were similar between experimental and infection groups.
Polymorphonuclear neutrophil (PMN) infiltration patterns differed, and CRP levels remained low in the experimental group.

Conclusions:

Bacterial inoculation in rats offers a viable model for critical colonization.
This model facilitates further investigation into critical colonization's pathophysiology.
The model supports the development of improved diagnostic and treatment protocols.