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- W1992034405 abstract "Infected wounds present a major complication in patients with diabetes. Staphylococcus aureus is the most common single isolate in diabetic wounds. Human beta-defensin (hBD)-3 is antimicrobial active and appears to play a key role in the immune response. The present study aimed to analyse the effect of hBD-3 expression in a model of infected diabetic wounds.Excisional wounds were created on the backs of Yorkshire pigs and Ad5-CMV-hBD-3 vectors were microseeded. Wounds were inoculated with S. aureus, covered with a polyurethane chamber and analysed for transgene expression, bacterial infection, re-epithelialization, wound contraction, wound fluid production and blood vessel formation.hBD-3-treated wounds showed a total bacterial load of 2.1 x 10(8) colony-forming units (CFU)/g tissue, versus 1.3 x 10(9) CFU/g tissue for controls (p < 0.001) at day 4. At day 12, no statistical difference could be detected. Re-epithelialization showed 75 +/- 15% wound closure for hBD-3 expressing wounds and 50 +/- 16% for controls (p < 0.01). hBD-3 expression was in the range 15-20 ng/ml of wound fluid during day 1-4. The lower dose of 2 x 10(9) Ad5-CMV-hBD-3 showed no effect, suggesting a dose dependency for hBD-3.In the present study, we show that hBD-3 expression significantly promotes wound closure in S. aureus infected diabetic wounds in a preclinical large-animal model. Furthermore, a ten-fold reduction of bacterial growth on day 4 was detected. These findings indicate that beta-defensin-3 may play a major role in diabetic wound healing and wound infections." @default.
- W1992034405 created "2016-06-24" @default.
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- W1992034405 date "2009-03-01" @default.
- W1992034405 modified "2023-09-30" @default.
- W1992034405 title "Human beta-defensin-3 promotes wound healing in infected diabetic wounds" @default.
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- W1992034405 doi "https://doi.org/10.1002/jgm.1287" @default.
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