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Hair-loss from alopecia congenita.
J Am Acad Dermatol. 1980;3:623
Analysis of hair from alopecia congenita.
Baden HP, Kubilus J.
Two patients with hair loss due to alopecia congenita had short vellus hairs of the scalp but some apparently normal-sized hairs in other areas. Both fibrous and matrix proteins were detected in the scalp hairs by polyacrylamide gel electrophoresis (PAGE), and x-ray diffraction analysis revealed a normal alpha pattern. Amino acid analysis showed a decreased cystine content suggesting a quantitative or qualitative change in the matrix component. Scanning electron microscopic examination revealed pits and bulges in the cuticle cells which may be related to wearing a wig. The data suggest a defect in the development of the follicle rather than an abnormality in a component of the hair.