Efeito Protetor dos Filtros Solares Contra Patologias da Pele
publicado em 01/07/2020
Martin M. Rieger, PhD
M. & A. Rieger Associates, Inc., Morris Plains, New Jersey, Estados Unidos
Decorreram quase 100 anos entre a primeira alusão de lesão cutânea pela luz UV e a confirmação do efeito protetor de filtros solares. Este artigo descreve alguns dos principais tipos de doenças cutâneas crônicas causadas pela luz UV e a utilidade de protetores solares contra estes efeitos e o envelhecimento actínico.
Relação de Luz UV com Cânceres de Pele
Mecanismo de Oncogênese Induzida por Luz UV
Prevenção dos Cânceres de Pele pelos Filtros Solares
Relação de Luz UV com Lesão de Pele
Prevenção de Lesão Actinica de Pele pelos Filtros Solares
Resumo
A popularidade dos produtos de proteção solar depende de sua eficácia contra dor, eritema e queimadura solar. Um benefício adicional geralmente atribuído ao uso de protetores solares é a crença geral que um bronzeado protege a pele contra uma subsequente lesão causada pela exposição a luz UV. Há alguns anos, Kligman mostrou que esta crença não está cientificamente comprovada(1), porém, sem dúvida, a pele bronzeada queima menos facilmente, mas o fluxo de radiação lesiva ao tecido subcorneano persiste. A formação de eritema durante a insolação está geralmente associada a sensação de calor, mas o fluxo de radiação UV não é sensorialmente detectado pelos seres humanos. Logo, este tipo de lesão não é imediatamente reconhecido e, desta forma, acumulado em várias camadas da pele ao longo do tempo, até que se torne tão grave que resulta a doença manifesta ou lesão cutânea.
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Endereço para correspondência com Dr. Martin A. Rieger. 304 Mountain Way, Morris Plains, NJ 07950, Estados Unidos.
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