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Title: Silk sericin ameliorates wound healing and its clinical efficacy in burn wounds
Authors: Pornanong Aramwit
Sirinoot Palapinyo
Teerapol Srichana
Suthat Chottanapund
Pornprom Muangman
Chulalongkorn University
Prince of Songkla University
Bamrasnaradura Infectious Diseases Institute
Mahidol University
Keywords: Medicine
Issue Date: 1-Sep-2013
Citation: Archives of Dermatological Research. Vol.305, No.7 (2013), 585-594
Abstract: The aim of this study was to evaluate the effect of silk sericin, a protein from silkworm cocoon, on scratch wound healing in vitro. For applicable result in clinical use, we also study the efficacy of sericin added to a standard antimicrobial cream, silver zinc sulfadiazine, for open wound care in the treatment of second-degree burn wounds. In vitro scratch assays show that sericin at concentration 100 μg/mL can promote the migration of fibroblast L929 cells similar to epidermal growth factor (positive control) at 100 μg/mL. After 1 day of treatment, the length of scratch in wounds treated with sericin was significantly shorter than the length of negative control wounds (culture medium without sericin). For clinical study, a total of 29 patients with 65 burn wounds which covered no less than 15 % of total body surface area were randomly assigned to either control (wounds treated with silver zinc sulfadiazine cream) or treatment (wounds treated with silver zinc sulfadiazine with added sericin cream) group in this randomized, double-blind, standard-controlled study. The results showed that the average time to reach 70 % re-epithelialization of the burned surface and complete healing in the treatment group was significantly shorter, approximately 5-7 days, than in the control group. Regarding time for complete healing, control wounds took approximately 29.28 ± 9.27 days, while wounds treated with silver zinc sulfadiazine with added sericin cream took approximately 22.42 ± 6.33 days, (p = 0.001). No infection or severe reaction was found in any wounds. This is the first clinical study to show that silk sericin is safe and beneficial for burn wound treatment when it is added to silver sulfadiazine cream. © 2013 Springer-Verlag Berlin Heidelberg.
ISSN: 1432069X
Appears in Collections:Scopus 2011-2015

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