The 50 Graft Test Procedure

[didi]

Originally Posted by Arashi
Anyway, I'm sure we'll get an answer from her tomorrow regarding the bulb-less hairs 'mystery'. Like said my guess is that she'll say that ALL bulb-less hairs will regrow and 80% of the hairs with bulb will regrow too. I'd be highly surprised if she doesn't say that.




Look at the pic of HST grafts, has bulb, means HST graft needs bulb to take - in recipient
bulbless hairs are expected to regrow in donor(80%)

Those with bulbs will regrow in recipient...almost total regrowth as Ghos says it in the pic

[c5000]

Here's my take on everything up to this point:

- I haven't counted the number of hairs in the '1' subsection yet. For this post, I'll assume that there's around 400-450 total hairs in the petri dish like Arashi said. I'll verify this later though to make sure.

- According to HASCI, they extracted 150 usable singles and 50 usable doubles. If we accept this as true, this implies that there are 250 usable hairs in total. To confirm this, perhaps we can count the number of hairs with intact bulbs in the petri.

- If there are 400-450 total hairs and 250 of those hairs are usable, this implies that the other 150-200 hairs are either transections or in telogen. Based on the numbers, it's clear that the majority of these must be transections. These transections should hopefully regenerate in the donor but are unlikely to yield in the recipient. For the telogen hairs, these are unlikely to regenerate in the donor. It's unsure if they will yield in the recipient either.

- When calculating the donor regeneration, we should reference this with the 400-450 extracted. When calculating the recipient yield, we should reference this with the 250 usable grafts.

- The most important thing we should look at is the net gain in hairs. We started out with 400-450 in the petri, let's see how many we end up with when we count the hairs in the donor and recipient later. This is the simplest proof of concept.

Will they even put these unusable grafts/hairs in the recipient though?

[Arashi]

Ok, great news guys, got mail back from Kristel and confirmed what I've said before !!

So basically, the cut-off hairs you see are just that: Cut-off hairs. Dead material. The graft stayed in the donor for these hairs and thus these are expected to regrow 100%.

The hairs WITH bulb will get transplanted and these are expected to regrow 80%.

So, in our example: let's say we find 400 hairs in the petridish. 250 hairs are usuable according to HASCI (we still have to verify but I'm pretty damn sure we'll find 250 hairs with bulbs in the petridish). Hence in donor we should expect this amount of hair growing from the extraction sites: 150+ 0.8*250= 350 hairs. So 350 out of the 400 hairs should regrow. Hence James should have lost about 50 hairs in donor and gained about 250 new hairs in recipient.

[Arashi]

Will they even put these unusable grafts/hairs in the recipient though?

There are no 'unsuable' grafts. Only grafts + transected hairs (dead material). Anyway I think everybody understands it now, right ?

[didi]

JJJJrS
" When calculating the donor regeneration, we should reference this with the 400-450 extracted. When calculating the recipient yield, we should reference this with the 250 usable grafts."


if 450 hairs got extracted why would you expect 450 in donor and 250 in recipient?
SAme amount should be expected on boths sides...
HST promisses to double whatever amount is extracted from donor....

450 or whatever number of hairs was extracted should grow in donor and recipient..900 all up...


HASCI will say no way, 250 was extracted...whcih translates to 250 will grow in recipient and 200 in donor.

[Arashi]

And she also sent me this picture regarding the 3 hair graft issue. Everybody has different hair, some have thin, some have thick and James is lucky to have very thick hair. Downside is of course that thick hair like that is difficult to extract with a small drill when it comes to a cluster of 3 hairs. She mailed me this photo to show how small the extraction sites are compared to 3 hair clusters:

http://picturepush.com/public/12656042

[didi]

arashi

hst says 80% regeneration in DONOR
100% or close to it in RECIPIENT

[Arashi]

arashi

hst says 80% regeneration in DONOR
100% or close to it in RECIPIENT

Exactly. And this is what Kristel expects to happen. What part of my previous posts didn't you understand exactly ?

[didi]

"let's say we find 400 hairs in the petridish. 250 hairs are usuable according to HASCI"

How did we end up with 400 hairs if there is suppossed to be only 250 in petri...
where did they come from?

Were these hairs originaly singles or?

[Arashi]

let's say we find 400 hairs in the petridish. 250 hairs are usuable according to HASCI

How did we end up with 400 hairs if there is suppossed to be only 250 in petri...
where did they come from?

Were these hairs originaly singles or?

At this point I'm really not sure if you're just trolling here or just as stupid IM says you are ...

Where did the hairs come from ? 200 grafts got extracted. 150 singles, 50 doubles, so 250 hairs ready for transplant. During this extraction some skin plus transected hairs come along. You can just forget about those: since the whole graft for these hairs stays UNTOUCHED in the donor, these hairs will grow 100% back. Out of the 250 hairs, 200 will grow back. So James will lose about 50 hairs in donor and will gain 250 in recipient.

[Arashi]

Again, in other words, 350 out of 400 hairs should grow back. Thus James will lose about 50 hairs in donor. However he's expected to get 250 new hairs in recipient. This is what they've always claimed and Kristel is confident this is going to happen here too.

[gc83uk]

I think everything is ok here.

The only problem now is getting good pictures.

I wonder how much faster the transected hair grows than the actual regrowth hair? That's a dam good question if I don't mind saying so myself.

We may have 150 transected hairs coming through the extraction zones within a couple of days and the other Genuine regrowth hairs over the coming 14 days. Any thoughts on that?

[Arashi]

I think everything is ok here.

The only problem now is getting good pictures.

I wonder how much faster the transected hair grows than the actual regrowth hair? That's a dam good question if I don't mind saying so myself.

We may have 150 transected hairs coming through the extraction zones within a couple of days and the other Genuine regrowth hairs over the coming 14 days. Any thoughts on that?

Yeah, this is certainly a good question. No thoughts on that, we're going to witness that in the next few weeks

[didi]

"During this extraction some skin plus transected hairs come along'

that is very interesting, 150 extra hairs isnt really 'some'.

as i predicted...total wont exceed what we see in petri...

Out of the 250 hairs, 200 will grow back. So James will lose about 50 hairs in donor and will gain 250 in recipient.

How is this different than FUE?...if you saw 450 hairs in petri extracted by fue..
you would expect 450 in recipient right? and 0 in donor area....total 450....same as HST

[Arashi]

"During this extraction some skin plus transected hairs come along'

that is very interesting, 150 extra hairs isnt really 'some'.

as i predicted...total wont exceed what we see in petri...

Out of the 250 hairs, 200 will grow back. So James will lose about 50 hairs in donor and will gain 250 in recipient.

How is this different than FUE?...if you saw 450 hairs in petri extracted by fue..
you would expect 450 in recipient right? and 0 in donor area....total 450....same as HST

Didi, please. Stop trolling. You are not serious here, right ? If James would have undergone FUE, only 150 hairs would grow back in Donor (because the follicle never got extracted) and he would have lost 250 hairs: the 250 that got transplanted. However with HST, 200 out of those 250 transplanted hairs will grow back and James will have 200 more hairs now than he would have if he had done FUE.