Is Loose Anagen Hair Syndrome a Keratin Disorder?

The study explored whether Loose Anagen Hair Syndrome (LAHS) was a keratin disorder by examining 17 patients, with molecular analyses on 9 patients and their families. It identified a mutation, E337K, in the K6HF keratin gene in 3 families, suggesting a possible link to LAHS and a dominant inheritance pattern with variable penetrance. However, the study did not conclusively link LAHS to keratin mutations, indicating that other genetic factors might be involved. It also noted associated conditions like hypodontia and atopic dermatitis, and suggested that defects in the inner root sheath or companion layer could affect hair anchorage. The study highlighted the need for further research to fully understand the genetic basis of LAHS.