Development of a Film-Forming Wound Dressing from Periplaneta americana Grease: Formulation, Characterization, and...

Area of Science:

• Biomaterials Science
• Dermatology
• Pharmacology

Background:

• Periplaneta americana grease (PAG) possesses wound repair properties but faces formulation challenges.
• Developing a stable, patient-friendly topical agent from PAG is crucial for wound management.
• This study focused on creating a film-forming agent from PAG for enhanced wound healing.

Purpose of the Study:

• To develop and characterize a novel film-forming agent (PAP) from Periplaneta americana grease (PAG).
• To evaluate the physicochemical properties, antioxidant, antibacterial, and in vivo wound healing efficacy of the PAP formulation.
• To establish PAP as a potential therapeutic strategy for topical wound care.

Main Methods:

• Characterization of PAG using GC-MS and formulation optimization via experimental design.
• In vitro assessment of antioxidant (DPPH/ABTS) and antibacterial activity against Staphylococcus aureus.
• In vivo evaluation of wound healing in a murine model, with histological analysis of healed tissue.

Main Results:

• PAG's complex composition was identified, rich in sterols, terpenoids, and heterocyclic compounds.
• The optimized PAP exhibited desirable film properties, significant antioxidant activity, and selective antibacterial effects.
• PAP significantly accelerated wound closure (98.2% by day 10) in vivo, comparable to positive controls, with improved tissue regeneration.

Conclusions:

• A multifunctional film-forming agent (PAP) was successfully developed from Periplaneta americana grease.
• PAP effectively addresses key wound healing barriers including infection, oxidative stress, and impaired tissue regeneration.
• The study highlights PAP's potential as an innovative therapeutic agent for advanced wound care applications.