Growth Factors and Microneedling in Alopecia Areata: A Narrative Review
Malak M. Almutlq,
Abrar E. Bukhari
Abstract:Alopecia areata (AA) is an autoimmune condition that causes non-scarring hair loss on the scalp or other hair-bearing surfaces. Various signalling molecules regulate the hair cycle and hair follicle regeneration. These include genes, growth factors, nuclear receptors, cytokines, and subcellular signalling pathways. Growth factors can cause the vascular endothelium and dermal fibroblasts to proliferate, extend the anagen phase, and delay the initiation of catagen in the hair follicle, thereby promoting hair gro… Show more
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