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Enhancement of cellular activity in hyperglycemic mice dermal wounds dressed with chitosan-alginate membranes
Breder, J S C; Pires, A L R; Azevedo, F F; Apolinário, P P; Cantaruti, T; Jiwani, S I; Moraes, Â M; Consonni, S R; Araújo, E P; Adams, G G; Saad, M J A; Lima, M H M.
  • Breder, J S C; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
  • Pires, A L R; Universidade Estadual de Campinas. Departamento de Engenharia de Materiais e Bioprocessos. Campinas. BR
  • Azevedo, F F; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
  • Apolinário, P P; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
  • Cantaruti, T; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
  • Jiwani, S I; University of Nottingham. Faculty of Medicine and Health Sciences. GB
  • Moraes, Â M; Universidade Estadual de Campinas. Departamento de Engenharia de Materiais e Bioprocessos. Campinas. BR
  • Consonni, S R; Universidade Estadual de Campinas. Departamento de Bioquímica e Biologia Tecidual. Campinas. BR
  • Araújo, E P; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
  • Adams, G G; University of Nottingham. Faculty of Medicine and Health Sciences. GB
  • Saad, M J A; Universidade Estadual de Campinas. Faculdade de Ciências Médicas. Campinas. BR
  • Lima, M H M; Universidade Estadual de Campinas. Faculdade de Enfermagem. Campinas. BR
Braz. j. med. biol. res ; 53(1): e8621, Jan. 2020. tab, graf
Article in English | LILACS | ID: biblio-1055482
ABSTRACT
The use of specially designed wound dressings could be an important alternative to facilitate the healing process of wounds in the hyperglycemic state. Biocompatible dressings combining chitosan and alginate can speed up wound healing by modulating the inflammatory phase, stimulating fibroblast proliferation, and aiding in remodeling phases. However, this biomaterial has not yet been explored in chronic and acute lesions of diabetic patients. The aim of this study was to evaluate the effect of topical treatment with a chitosan-alginate membrane on acute skin wounds of hyperglycemic mice. Diabetes mellitus was induced by streptozotocin (60 mg · kg-1 · day-1 for 5 days, intraperitoneally) and the cutaneous wound was performed by removing the epidermis using a surgical punch. The results showed that after 10 days of treatment the chitosan and alginate membrane (CAM) group exhibited better organization of collagen fibers. High concentrations of interleukin (IL)-1α, IL-1β, granulocyte colony-stimulating factor (G-CSF), and tumor necrosis factor-alpha (TNF-α) were detected in the first and second days of treatment. G-CSF and TNF-α level decreased after 5 days, as well as the concentrations of TNF-α and IL-10 compared with the control group (CG). In this study, the inflammatory phase of cutaneous lesions of hyperglycemic mice was modulated by the use of CAM, mostly regarding the cytokines IL-1α, IL-1β, TNF-α, G-CSF, and IL-10, resulting in better collagen III deposition. However, further studies are needed to better understand the healing stages associated with CAM use.
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Full text: Available Index: LILACS (Americas) Main subject: Bandages / Wound Healing / Chitosan / Cell Proliferation / Diabetes Mellitus, Experimental / Alginates Limits: Animals Language: English Journal: Braz. j. med. biol. res Journal subject: Biology / Medicine Year: 2020 Type: Article Affiliation country: Brazil / United kingdom Institution/Affiliation country: Universidade Estadual de Campinas/BR / University of Nottingham/GB

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Full text: Available Index: LILACS (Americas) Main subject: Bandages / Wound Healing / Chitosan / Cell Proliferation / Diabetes Mellitus, Experimental / Alginates Limits: Animals Language: English Journal: Braz. j. med. biol. res Journal subject: Biology / Medicine Year: 2020 Type: Article Affiliation country: Brazil / United kingdom Institution/Affiliation country: Universidade Estadual de Campinas/BR / University of Nottingham/GB