Ok, this is my first post, but reading this post I just had to join the forum and comment.
I am a medical student, and this theory is EXTREMELY interessting. Here´s why:
The pathogenesis of hair loss is, believe it or not, relatively unknown. Most of the proven treatments that exists today, were originally used to treat other conditions, and it is through "backwards reasoning" from those treatments, that theories on Androgenetic Alopecia develop. E.x: DHT inhibition seem to have an effect, ergo DHT causes hair loss.
Research indicates three proven treatments; the first works by inhibiting DHT, wich is finasteride, the second by stimulating growth (throug EDF-1 and ATP- potassium channels if I remember correctly), wich is minoxidil.
The third kind of treatment are those that have a generally good dermatological effect: zinc, azealic acid, ketoconazole (wich also inhibits DHT), retinol- A etc.
THE INTERESTING PART, is that the dermatological factors have one thing in common, in addition to just be "good for the skin". Most of them are, (to a certain degree) anti- inflammatory.
If we accept this "ex- merck´s" theory; a model for the patogenesis of Androgenetic Alopecia could be something like this (simplyfied):
DHT, leads to an icreasend production on sebum, wich causes an inflammatory process of the follicle, leading to decreased growth. (DHT-INFLAMMATION-FOLLICLE GROWTH REDUCTION)
Thus, we have three "attack points" for pharmaceutical intervention: 1. inhibit DHT altoghether (finasteride, dutasteride, ketoconazole). 2. continously stimulating hair growth (minoxidil), or 3. inhibit inflammation altoghether. Little research has been done on the anti- inflammatory effects.
If, by completely removing the sebum, you will neutralize the inflammatory process of the hair follicle, this will stop hair loss IF THE THEORY IS CORRECT.
On the other hand...
- azelaic acid and ketoconazole does by itself inhibit DHT, and the dermatological benefits may therefor not be relevant for treating Androgenetic Alopecia.
-zinc, although anti- inflammatory, is also a hair growth stimulator, only weaker than minoxidil.
-Of all the proven treatments, the dermatological ones are the ones that shows the least effect.
Just had to share my thoughts with you guys.