Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model

ABSTRACT Purpose: Diabetic foot ulcers (DFUs) are chronic lesions, and despite extensive research, no standardized treatment exists yet. This study aimed to evaluate the effect of frog skin application as a temporary dressing on the DFUs of diabetic rats. Methods: Diabetes was induced in male Wist...

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Main Authors: Cristina Pires Camargo, Janayna Terlera Paulino, Deborah Luisa de Sousa Santos, Bianca Loula Santos, Ezequiel da Silva Passos Porto, Maria José Ferreira Alves, Miyuki Uno, Tatiane Katsue Furuya, Rolf Gemperli
Format: Article
Language:English
Published: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2025-08-01
Series:Acta Cirúrgica Brasileira
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502025000100240&lng=en&tlng=en
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author Cristina Pires Camargo
Janayna Terlera Paulino
Deborah Luisa de Sousa Santos
Bianca Loula Santos
Ezequiel da Silva Passos Porto
Maria José Ferreira Alves
Miyuki Uno
Tatiane Katsue Furuya
Rolf Gemperli
author_facet Cristina Pires Camargo
Janayna Terlera Paulino
Deborah Luisa de Sousa Santos
Bianca Loula Santos
Ezequiel da Silva Passos Porto
Maria José Ferreira Alves
Miyuki Uno
Tatiane Katsue Furuya
Rolf Gemperli
author_sort Cristina Pires Camargo
collection DOAJ
description ABSTRACT Purpose: Diabetic foot ulcers (DFUs) are chronic lesions, and despite extensive research, no standardized treatment exists yet. This study aimed to evaluate the effect of frog skin application as a temporary dressing on the DFUs of diabetic rats. Methods: Diabetes was induced in male Wistar rats (n = 22) weighing 200–300 g through a streptozotocin injection (55 mg/kg). The animals received sub-doses of long-acting insulin to induce a moderate, chronic diabetic state. A DFU was surgically created on the animal’s paws (1 × 1 cm). The animals were divided into two groups: a control group treated with gauze and 0.9% saline solution (n = 10), and the frog skin group (n = 12). Both groups were further subdivided so it was possible to analyze their healing on postoperative 7 and 14 days (POD7 and POD14). The primary endpoints assessed included DFU contraction area, histological analysis, and gene expression. Results: On POD14, the frog skin group showed six times less contracture when compared to the control group. Histological analysis revealed a 30% increase in neoangiogenesis and 50% reduction in inflammation in the POD14 frog skin group when compared to the control group. Additionally, on POD7, Il10 expression was about five times higher in the frog skin group compared to the respective control (p = 0.011). Conclusion: This study suggests that the use of frog skin as temporary biological dressing can reduce DFU secondary contraction and inflammation, offering potential therapeutic benefits for chronic wound management.
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publishDate 2025-08-01
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spelling doaj-art-58e2f5cede3a475c8f7b6a92c97007772025-08-20T03:07:35ZengSociedade Brasileira para o Desenvolvimento da Pesquisa em CirurgiaActa Cirúrgica Brasileira1678-26742025-08-014010.1590/acb406625Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal modelCristina Pires Camargohttps://orcid.org/0000-0002-3134-0003Janayna Terlera Paulinohttps://orcid.org/0000-0001-5050-2613Deborah Luisa de Sousa Santoshttps://orcid.org/0009-0007-0570-1083Bianca Loula Santoshttps://orcid.org/0009-0009-9541-2369Ezequiel da Silva Passos Portohttps://orcid.org/0009-0003-4565-1587Maria José Ferreira Alveshttps://orcid.org/0000-0001-5403-6242Miyuki Unohttps://orcid.org/0000-0003-2589-6432Tatiane Katsue Furuyahttps://orcid.org/0000-0003-4643-8254Rolf Gemperlihttps://orcid.org/0000-0002-4147-4478ABSTRACT Purpose: Diabetic foot ulcers (DFUs) are chronic lesions, and despite extensive research, no standardized treatment exists yet. This study aimed to evaluate the effect of frog skin application as a temporary dressing on the DFUs of diabetic rats. Methods: Diabetes was induced in male Wistar rats (n = 22) weighing 200–300 g through a streptozotocin injection (55 mg/kg). The animals received sub-doses of long-acting insulin to induce a moderate, chronic diabetic state. A DFU was surgically created on the animal’s paws (1 × 1 cm). The animals were divided into two groups: a control group treated with gauze and 0.9% saline solution (n = 10), and the frog skin group (n = 12). Both groups were further subdivided so it was possible to analyze their healing on postoperative 7 and 14 days (POD7 and POD14). The primary endpoints assessed included DFU contraction area, histological analysis, and gene expression. Results: On POD14, the frog skin group showed six times less contracture when compared to the control group. Histological analysis revealed a 30% increase in neoangiogenesis and 50% reduction in inflammation in the POD14 frog skin group when compared to the control group. Additionally, on POD7, Il10 expression was about five times higher in the frog skin group compared to the respective control (p = 0.011). Conclusion: This study suggests that the use of frog skin as temporary biological dressing can reduce DFU secondary contraction and inflammation, offering potential therapeutic benefits for chronic wound management.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502025000100240&lng=en&tlng=enDiabetic FootUlcerSkin, ArtificialHeterografts
spellingShingle Cristina Pires Camargo
Janayna Terlera Paulino
Deborah Luisa de Sousa Santos
Bianca Loula Santos
Ezequiel da Silva Passos Porto
Maria José Ferreira Alves
Miyuki Uno
Tatiane Katsue Furuya
Rolf Gemperli
Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
Acta Cirúrgica Brasileira
Diabetic Foot
Ulcer
Skin, Artificial
Heterografts
title Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
title_full Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
title_fullStr Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
title_full_unstemmed Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
title_short Frog skin as an alternative temporary dressing for diabetic foot ulcers treatment: animal model
title_sort frog skin as an alternative temporary dressing for diabetic foot ulcers treatment animal model
topic Diabetic Foot
Ulcer
Skin, Artificial
Heterografts
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502025000100240&lng=en&tlng=en
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