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Research Article: Expression of Endothelin-, Endothelin Receptor-A, and Endothelin Receptor-B in facial melasma compared to adjacent skin

Date Published: 2023-10-12

Introduction:
Melasma is a chronic, acquired hypermelanosis with a multifactorial aetiology that mainly affects the faces of women during their childbearing years. Although melasma is highly prevalent, its pathogenesis is not yet fully understood. Sunlight exposure is the most relevant environmental trigger in its pathogenesis. However, the exact role of different wavelengths of solar radiation and the combined effects of these wavelengths are not acknowledged.

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