This post is to stress out the importance of minoxidil to inducing new hair after wounding:
http://www.ncbi.nlm.nih.gov/pubmed/11371349
beta-Catenin controls hair follicle morphogenesis and stem cell differentiation in the skin.
Now minoxidil has been shown to strongly induce b-catenin
http://www.ncbi.nlm.nih.gov/pubmed/21524889
Minoxidil activates β-catenin pathway in human dermal papilla cells: a possible explanation for its anagen prolongation effect.
Furthermore, studies also show that within the wound itself, b-catenin is not expressed but is only expressed in the hair follicles adjacent to the wound.
http://www.biomedcentral.com/1471-2121/7/4
Furthermore, b-catenin can be activated within the wound and this results in new hair follicle generation (same study above)
Minoxidil has also been shown to induce PGE2.
Here is my theory about introducing minoxidil or not post wounding
1. Using minoxidil post wound:
Stems cells rush into the wounded area, the presence of b-catenin expression from minoxidil initially tells some stem cells to turn into hair, further down the line the PGE2 inducing ability of minoxidil can trigger fgf9 triggering more wnt/bcatenin and thus further guarantees the likelihood of new hair (i guess this guaranteeing part is what cotsarelis was looking for in his fgf9 study, because in 2007 he already had a patent for wound + minoxidil, so he strongly believed it worked way back then, but was looking for more supporting evidence, so introducing fgf9 later on, whether minoxidil induces it or not would definitely make the stem cells tick into hair, so to speak). In any case,
2. Not using minoxidil post wound (and not even a PGE2 agonist)
Unless you barbecue your head, I strongly feel that you will likely get benefit only from the last study posted above. In other words, thicker development of the existing follicles in the normal uninjured skin adjacent to the wounds, but if you do not get new follicle growth, do not blame anyone or bash the indian study. Anyway that's my speculation for tonight, it is only a personal opinion though
. Bon assez parler, la bouteille de vin est presque fini, boulot demain...bonne nuit!!