A Study on CAG Repeat Polymorphisms of the Androgen Receptor in Korean Androgenetic Alopecia: Preliminary Report

January 2009 in “ Journal of Clinical Dermatology ”

Jin Hyang Jung, Jongwook Park, Myung Kyum Kim, Yong Woo Cinn

androgen receptor CAG repeat polymorphisms androgenetic alopecia AR gene AGA

TLDR CAG repeat numbers in the AR gene likely don't affect hair loss in Korean men.

This study investigated the association between CAG repeat numbers in the androgen receptor (AR) gene and androgenetic alopecia (AGA) in 64 male Korean patients compared to 40 normal male controls. The results showed no significant difference in CAG repeat numbers between the AGA patients and controls, nor any significant correlation between CAG repeat numbers and the age of onset or severity of AGA. The study concluded that AR receptor CAG polymorphisms might not play a major role in the susceptibility to AGA in the Korean male population.

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