Research progress on animal models of peritoneal adhesion

Area of Science:

• Surgical Pathology
• Preclinical Research Models
• Gastrointestinal Surgery

Background:

• Peritoneal adhesion is a frequent post-surgical complication following abdominal and pelvic procedures.
• It leads to significant morbidity, including chronic pain, bowel obstruction, and infertility.
• Current animal models inadequately replicate the complexity of human peritoneal adhesion formation.

Purpose of the Study:

• To review existing methodologies for creating animal models of peritoneal adhesion.
• To summarize the principles, characteristics, and applications of various adhesion induction techniques.
• To propose a novel, clinically relevant animal model for peritoneal adhesion research.

Main Methods:

• Comprehensive literature review of established peritoneal adhesion animal models.
• Analysis of methods including physical, chemical, ischemic, infectious, and foreign body stimuli.
• Evaluation of macroscopic and microscopic assessment criteria (gross assessment, histology, molecular markers).

Main Results:

• Existing models have limitations in fully simulating clinical peritoneal adhesion.
• A new model was developed to better mimic factors contributing to adhesion formation in surgical patients.
• The proposed model demonstrates stable and standardized peritoneal adhesion formation.

Conclusions:

• A critical evaluation of current animal models highlights the need for improved simulation.
• The novel proposed model offers a standardized and reproducible platform for studying peritoneal adhesions.
• This advancement provides a stronger foundation for future research into adhesion prevention and treatment.