Comparative Histopathology of Androgenetic Alopecia, Diffuse Alopecia, and Senescent Alopecia

Dihydrotestosterone (DHT) impacts various skin conditions, including Androgenetic alopecia and seborrheic dermatitis, by causing overactivity in sebaceous glands. Topical medications Tacrolimus and Clobetasol can reduce these inflammatory conditions, and treatments like RU58841, Minoxidil, and Finasteride may also be beneficial.

Balding scalps have more androgen receptors, leading to increased TGF-beta, which causes blood vessel loss and hair follicle miniaturization. Blocking androgen signaling and TGF-beta may help prevent hair loss.

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

DHT may inhibit hair growth by affecting mitochondrial function, leading to hair follicle miniaturization. Treatments like minoxidil and PP405 may promote hair growth by altering metabolic pathways, potentially counteracting DHT's effects.

DHT sensitivity at the scalp increases with age, contributing to androgenic alopecia. Treatments like Minoxidil, finasteride, and RU58841 are discussed for managing hair loss.

The review discusses traditional hair loss treatments like minoxidil and finasteride, and newer options like Low-Level Laser Therapy, microneedling, and platelet-rich plasma for androgenetic alopecia. It highlights the need for more high-quality trials to assess these treatments' effectiveness and standardized protocols for emerging therapies.