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Hemoadhican-Based Bioabsorbable Hydrogel for Preventing Postoperative Adhesions.

Weiling Lu1,2, Xianjin Wang1,2, Changchang Kong1,2

  • 1Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing 210094, China.

ACS Applied Materials & Interfaces
|April 1, 2024
PubMed
Summary

This study introduces a novel polysaccharide hydrogel for preventing postoperative adhesions. The hemoadhican-based hydrogel shows promise as an effective and safe anti-adhesion barrier in preclinical models.

Keywords:
antiadhesionantifoulingcross-linkinghydrogelspolysaccharide

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Surgical Innovation

Background:

  • Postoperative peritoneal adhesions are a significant clinical problem after abdominal surgery, leading to patient morbidity and healthcare costs.
  • Current anti-adhesion barriers have limitations, including poor efficacy, challenges in application (especially laparoscopically), and potential complications.
  • Hydrogel-based materials are being explored as advanced solutions, but existing options require further improvement.

Purpose of the Study:

  • To develop and evaluate a novel polysaccharide-based hydrogel for preventing postoperative peritoneal adhesions.
  • To assess the physical, biological, and anti-adhesion properties of the developed hydrogel in vitro and in vivo.

Main Methods:

  • A novel hydrogel was synthesized using hemoadhican (HD) as the base polysaccharide and polyethylene glycol diglycidyl ether (PEGDE) as the cross-linker.
  • The hydrogel's mechanical properties, injectability, and cytocompatibility were evaluated.
  • Resistance to protein adsorption and fibroblast cell adhesion was tested in vitro.
  • Biodegradability and in vivo efficacy against peritoneal adhesions were assessed in a mouse model (C57BL/6).

Main Results:

  • The synthesized HD hydrogel demonstrated suitable mechanical properties, injectability, and excellent cytocompatibility.
  • The hydrogel effectively resisted protein adsorption and L929 fibroblast cell adhesion.
  • In vivo studies in mice confirmed the hydrogel's biodegradability and significant efficacy in preventing peritoneal adhesions.

Conclusions:

  • The novel hemoadhican-based hydrogel presents a promising new biomaterial for anti-adhesion barrier applications.
  • This hydrogel offers a potential solution to overcome the limitations of current strategies for preventing postoperative tissue adhesion.
  • Further development could lead to improved clinical outcomes for patients undergoing abdominal and pelvic surgery.