Autor(es)

Pelegrino, Milena T. ; Weller, Richard B. ; Paganotti, Andre ; Seabra, Amedea B.

• Tipo de documento: Artigo Científico
• Fonte: NITRIC OXIDE-BIOLOGY AND CHEMISTRY; v. 94, p. 6-pg., 2020-01-01.

Resumo

Nitric oxide (NO) is a crucial molecule in the human body. The encapsulation of exogenous NO donors into chitosan nanoparticles (CS NPs) has been widely used to overcome NO drawbacks in pharmacological applications, such as, its short half-life. The NO donor, S-nitrosoglutathione (GSNO), was encapsulated into CS NPs (GSNO-CS NPs) and characterized by AFM and DLS measurements. The nanoparticles presented a hydrodynamic size of 123.3 +/- 1.5 nm and a polydispersity of 0.25 +/- 0.01. The ability of GSNO-CS NPs, combined with UV irradiation, to deliver NO was evaluated using ex vivo human skin. The human skin was pre-treated with GSNO-CS NPs, in the presence and absence of UV irradiation. The results showed that the combined treatment significantly increased the NO and S-nitrosothiol levels in human skin. This effect can emulate the cardiovascular benefits related to NO without negative side effects of skin exposure to UV light. (AU)

• Processo FAPESP: 17/05029-8 - Preparação, caracterização e ensaios biológicos de biomateriais poliméricos doadores de óxido nítrico
• Beneficiário: Milena Trevisan Pelegrino
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/08194-2 - Óleo essencial contendo nanopartículas metálicas funcionalizadas com óxido nítrico como estratégia para o controle de patógenos vegetais na agricultura
• Beneficiário: Amedea Barozzi Seabra
• Modalidade de apoio: Auxílio à Pesquisa - Regular