» I agree with everything you say, but it kinda misses the point I was trying
» to make. The point is this: Before I started losing my hair I had a full
» head of hair. In other words: If they can make all that hair regrow then I
» don’t NEED an unlimited number of new follicles. I would be quite happy
» just to re-grow all the hair I once had, and if they could do that by
» injecting some cells into my scalp I think it would probably look more
» natural than if they grew the follicles “in vitro” and then put it on my
» head.
News, if your view of TRC is that it’s a simple, wham-bam procedure where cells are injected and they just revive or rejuvenate all your old, miniaturized follicles, and it’s that simple, I think you have to revise your thinking.
The truth is that it’s more complicated than that, and Interctyex people like Dr. Kemp have said already that they do not yet understand fully how TRC works (at the cellular level) – in other words, they’re not sure if the “new” hairs are brand new follicles (i.e., follicular neogenesis), or existing miniaturized follicles that have been re-enlarged (“rejuvenation”.) They think that most likely, it’s a combination of both methods.
That’s right, I said it… they think it’s a COMBINATION OF BOTH METHODS. And this is a very reasonable assumption, in my view.
The truth is that if you had to rely just upon “rejuvenation”, I think the current generation of HM (like TRC) wouldn’t be very good, because the “batting average” or success rate of any given injection resulting in significant regrowth of existing, miniaturized follicles, wouldn’t be that great in many people.
I think it’s impossible to assume that, with current HM technology, you can have a situation where all you have to do is inject a bunch of cells and that’ll regrow all your existing, miniaturized follicles.
To grossly simplify this as an illustration, I think for most people, it will probably be a much more complicated situation like this:
You inject the cell suspension, and the donor cells interact with both the existing, miniaturized follicles, and the surrounding epidermis and underlying dermis.
SOME of your existing miniaturized follicles might respond favorably to the new cells, and regrow into big follicles with visible, terminal hairs. Other existing miniaturized follicles in or around the same areas, or in other areas, might not respond favorably, or might not respond at all. In any random sample of patients, you might get, say, a success rate (on a per-follicle basis) of perhaps 30%, o4 40%, or 50%. It might range from a success rate of 0% to near 100%, in fact, depending on the person, the area of the scalp, the duration of baldness, and a host of other factors. But I think that in most patients, the success rate of this “rejuvenation” process will be very far short of 100%. I think it will average nowhere near 100%.
However, combined with potential follicular neogenesis, plus repeat procedures, it may definitely be enough to result in a cosmetically acceptable head of hair.
On the follicular neogenesis (FN) side, you might get similar success rates, or “yields” , per injection. So, for instance, for every 10 injections, maybe 3 or 4 of them might result in BRAND NEW HAIR FOLLICLES (i.e., follicles which didn’t exist before).
My numbers and figures here are PURE SPECULATION. I am only presenting them to illustrate my point, i.e., that HM is likely to shake out as far more complicated than just a simple “one-to-one” process of rejuvenating all your old, miniaturized MPB follicles.
Instead, it’s likely to be a very complex combination of some rejuvenation of old follicles, with an average success rate of far less than 100% per injection, plus creation of brand new follicles (FN), also with an average success rate of far less than 100%.
These two simulaneous, or concurrent, processes, combined, plus the ability to do repeat treatments and thereby “up” the eventual yield, will, in my opinion, account for the success of this generation of HM, i.e., injection-based HM like TRC.