Congenital Atrichia With Papular Lesions Resulting From Novel Mutations in Human Hairless Gene in Four Consanguineous Families
February 2011
in “
The Journal of Dermatology
”
TLDR Mutations in the hairless gene cause a rare form of permanent hair loss.
The study investigated congenital atrichia with papular lesions (APL), a rare form of irreversible alopecia, in four consanguineous families. APL is characterized by hair loss shortly after birth and the development of keratin-filled cysts on the body, following an autosomal recessive inheritance pattern. The research identified that all four families had mutations in the human hairless (HR) gene located on chromosome 8p21.1. Specifically, three novel mutations were discovered: two nonsense mutations (p.Cys690X, p.Arg819X) and one missense mutation (p.Pro1157Arg). These findings contributed to the understanding of the genetic basis of APL.