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Article
July 1979

Melanin Pigmentation, Women, and Levodopa

Author Affiliations

Cape Town, South Africa

Arch Dermatol. 1979;115(7):817. doi:10.1001/archderm.1979.04010070003006
Abstract

To the Editor. —  In the November 1977 issue of the Archives (113:1533-1538), C. Anders Hedin, DDS, found that women constituted a high proportion of subjects with gingival melanosis due to tobacco smoking, even though these women had a lower cigarette consumption than the affected men.This female preponderance has been observed in other instances of hyperpigmentation, such as that induced by hydantoin anticonvulsants.1 In a survey of 70 patients with chlorpromazine melanosis, all were female.2 A reflectance spectrophotometry study of subjects under prolonged therapy with phenothiazines and/or hydantoins showed that women (both white and black) had a strikingly greater pigmentary response to these drugs than did their male counterparts.3 A comparison of blue-eyed and brown-eyed whites revealed that only the women tended toward a skin melanin difference in the expected direction.4As levodopa is a precursor of melanin, I recently conducted a small pilot study

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