While I think that all of the galea stuff is complete bullsh*t (and I never saw anything supporting this theory), a tight scalp due to fibrosis, or rather fibrosis itself, is not the endgame here, but one of the major issues.
Someone (I think squeegee) posted some crosssections of fibrotic scalp of some male pattern baldness patients a long time ago in this thread. These cross sections show perfectly how the shafts are squeezed and crushed by the surrounding hard fibrotic tissue.
I reckon there are two modes of action here, which are maybe even two subsequent steps in the death of a follicle:
1. Fibrotic tissue crushing and squeezing the DP shafts and follicles, thus they can no longer push helathy hair out to the surface.
2. Miniaturization of follicles as a result of a) being crushed by fibrotic tissue and/or b) local overexpression of PGD2.
The first point is one of the reasons why I think that chemical peels may be promising, by the way.
Someone (I think squeegee) posted some crosssections of fibrotic scalp of some male pattern baldness patients a long time ago in this thread. These cross sections show perfectly how the shafts are squeezed and crushed by the surrounding hard fibrotic tissue.
I reckon there are two modes of action here, which are maybe even two subsequent steps in the death of a follicle:
1. Fibrotic tissue crushing and squeezing the DP shafts and follicles, thus they can no longer push helathy hair out to the surface.
2. Miniaturization of follicles as a result of a) being crushed by fibrotic tissue and/or b) local overexpression of PGD2.
The first point is one of the reasons why I think that chemical peels may be promising, by the way.