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Enhancement of cellular activity in hyperglycemic mice dermal wounds dressed with chitosan-alginate membranes BJMBR
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..
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: C57BL/6J mice; Wound healing; Wound dressing; Polysaccharides; Diabetes.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000100602
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The insulin receptor substrate 1 associates with phosphotyrosine phosphatase SHPTP2 in liver and muscle of rats BJMBR
Lima,M.H.M.; Zambelli,J.E.; Carvalho,C.R.O.; Saad,M.J.A..
Insulin stimulates the tyrosine kinase activity of its receptor resulting in the phosphorylation of its cytosolic substrate, insulin receptor substrate-1 (IRS-1) which, in turn, associates with proteins containing SH2 domains. It has been shown that IRS-1 associates with the tyrosine phosphatase SHPTP2 in cell cultures. While the effect of the IRS-1/SHPTP2 association on insulin signal transduction is not completely known, this association may dephosphorylate IRS-1 and may play a critical role in the mitogenic actions of insulin. However, there is no physiological demonstration of this pathway of insulin action in animal tissues. In the present study we investigated the ability of insulin to induce association between IRS-1 and SHPTP2 in liver and muscle...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Insulin action; Insulin receptor substrate; Phosphotyrosine phosphatase; SHPTP2.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001100007
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