Antioxidantes na manutenção do equilíbrio redox cutâneo: uso e avaliação de sua eficácia

AUTOR(ES)

Guaratini, Thais, Medeiros, Marisa H. G., Colepicolo, Pio

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2007-02

RESUMO

The skin is a very complex organ, continuously exposed to physical, chemical and microbiological agents. Enzymes as well as low-molecular weight antioxidants are present in the cutaneous tissue to counterbalance the deleterious effect caused by an oxidative stress and thus maintain homeostasis. Antioxidants such as vitamins C and E, carotenoids, and extracts with these properties have been extensively used for treatment of pathologies and skin aging prevention. We review here different mechanisms that can interfere in the redox equilibrium of the skin, as well as the chemical reactions involved in these processes. Moreover, we discuss the importance of endogenous or exogenous antioxidants that can be acquired from the diet or from oral or topical administration, and methodologies that have been developed to evaluate their efficacy.

Documentos Relacionados

• Critérios anatomopatológicos para melanoma maligno cutâneo: análise qualitativa de sua eficácia e revisão da literatura
• Lúpus eritematoso cutâneo: aspectos clínicos e laboratoriais
• Melanoma cutâneo: estudo epidemiológico descritivo
• Campo de cancerizacao cutaneo: implicacoes clinicas, histopatologicas e terapeuticas
• Bronzeamento e risco de melanoma cutâneo: revisão da literatura