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Topical Synthetic Platelets Loaded With Gentamicin Decrease Bacteria in Deep Partial-Thickness Burns.

Franklin A Valdera1, Kristo Nuutila1, David E Varon1

  • 1United States Army Institute of Surgical Research, Fort Sam Houston, Texas.

The Journal of Surgical Research
|July 9, 2023
PubMed
Summary
This summary is machine-generated.

Synthetic platelets (SPs) loaded with gentamicin vesicles showed potential in reducing bacterial load in deep partial-thickness burns, though overall wound healing outcomes were not significantly improved.

Keywords:
Burn infectionBurn wound healingRe-epithelializationSynthetic platelets

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Area of Science:

  • Biomaterials Science
  • Wound Healing Research
  • Regenerative Medicine

Background:

  • Prolonged inflammation and infection impede burn wound healing.
  • Platelet granules possess anti-inflammatory properties beneficial for wound repair.
  • Synthetic platelets (SPs) offer advantages over natural platelets for therapeutic delivery.

Purpose of the Study:

  • To evaluate the efficacy of topical synthetic platelets (SPs) loaded with antibiotics for deep partial-thickness (DPT) burn wound healing.
  • To assess the impact of SPs on re-epithelialization, wound contraction, blood flow, and bacterial load.

Main Methods:

  • Thirty DPT burns were created in pigs and treated with SPs alone, SPs with gentamicin (vesicles or mixture), or control.
  • Wound assessments included re-epithelialization, contraction, superficial blood flow, and bacterial load over 90 days.

Main Results:

  • All SP treatments achieved 100% re-epithelialization by day 28.
  • SPs loaded with gentamicin vesicles or mixture showed increased wound contraction compared to standard care.
  • SPs loaded with gentamicin vesicles significantly reduced bacterial load.

Conclusions:

  • Topical SP treatment did not significantly enhance overall wound healing outcomes in DPT burns.
  • SPs loaded with gentamicin-infused vesicles demonstrated a significant reduction in bacterial load, suggesting potential for infection control.