anagen hair

A disruption of the growing phase causes abnormal loss of anagen hairs (anagen effluvium).

BMP4 is an important component of the biological pathways that involved regulating hair shaft differentiation within the anagen hair follicle.

The condition is thought to be a systemic autoimmune disorder in which the body attacks its own anagen hair follicles and suppresses or stops hair growth.

It is needed for the induction of biochemical pathways and signaling for regulating the differentiation of the hair shaft in the anagen hair follicle.

Loose anagen syndrome (also known as "Loose anagen hair syndrome") is primarily described in fair-haired children who have easily dislodgable hair.