The 50 Graft Test Procedure

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  • Arashi
    Senior Member
    • Aug 2012
    • 3888

    Originally posted by gc83uk
    I'm sorry but if there is 400 hairs in the petri then we should be expecting 400 hairs
    Well, in a way you're right of course. It just depends on what you're expecting. Are you expecting to see 80% regrowth ? Or are you expecting to see 40-45% regrowth ?

    Comment

    • gc83uk
      Senior Member
      • Nov 2011
      • 1339

      Originally posted by Arashi
      This I agree with, it doesn't matter how we call the graftless hairs. Let's forget about it.



      Go and count them ! If several people count, we can compare results.


      No. 150 grafts can be used a single, 50 as double, hence we're expecting 250 hairs in recipient.


      No. 80% of GRAFTS regenerate. You keep confusing stuff. According to JJJJRS's research, 65% of HAIRS regenerate. Hence we'd expect 260 hairs in donor, IF 400 grafts were in the petridish. In this case, James would have sacrificed 140 hairs in donor to get 250 in recipient = 44% true hair regrowth.

      80% of grafts regenerate? So are you saying the graft doesn't have to return to it's original state to be considered regenerating? e.g Start with a 2 FU, a 2 FU regenerates in the donor and this is 100% regrowth, however if only a single hair regrows from a 2 hair FU are you saying this is 50% or 100% regrowth?

      BTW I'm only asking this so I know we're all on the same page so to speak, not to try to catch you out or anything.

      Comment

      • Arashi
        Senior Member
        • Aug 2012
        • 3888

        Originally posted by gc83uk
        80% of grafts regenerate? So are you saying the graft doesn't have to return to it's original state to be considered regenerating? e.g Start with a 2 FU, a 2 FU regenerates in the donor and this is 100% regrowth, however if only a single hair regrows from a 2 hair FU are you saying this is 50% or 100% regrowth?

        BTW I'm only asking this so I know we're all on the same page so to speak, not to try to catch you out or anything.
        Hehe. This is just a terminology discussion and to me it's rather pointless but ok. What I'm saying: when we analysed your scalp, we saw 80% of grafts regenerate. However, quite a few 2 hair graft regenerated as 1 hair grafts. Hence JJJJRS found out that if we were looking at haircount, not 80% but 65% of hairs regenerated. So yeah, if you count a 2 hair graft regenerating as 1, you'd see 80%. But if you'd look at the HAIRS you'd see 65% regenerate.

        Comment

        • Arashi
          Senior Member
          • Aug 2012
          • 3888

          I've started counting though and I'd say we're going to end even closer to 500 than 400.

          But yeah, I'll email Kristel and ask her take on all of this. But to me it's obvious that HASCI is expecting to see 250 hairs in recipient. Cause they labled 150 hairs as single (usable) grafts and 50 hairs as double (usable) grafts.

          Comment

          • didi
            Senior Member
            • Nov 2011
            • 1360

            if you go by hasci theres 250 HAIRS in petri...those in singles partition are expected to grow s singles, theya re ones in Jameses hairline...OK..150 of them

            doubles will grow as doubles..

            real problem is that we have much more than 250 hairs....we cans see that in petri...

            My theory is simple, they transected 2 hair grafts, one follicle left behind will grow and the other part in recipient will also grow...

            Comment

            • Arashi
              Senior Member
              • Aug 2012
              • 3888

              Originally posted by didi
              My theory is simple, they transected 2 hair grafts, one follicle left behind will grow and the other part in recipient will also grow...
              Totally agreed. Well there are also some (10%) telogen hairs and we won't know what happen with these, but I think it's fair to suggest what you're saying is right.

              Comment

              • Arashi
                Senior Member
                • Aug 2012
                • 3888

                But I think our implications are different. You're going to suggest that 1 hair grows in donor, 1 hair in recipient. That's really not necessarily true of course

                Comment

                • didi
                  Senior Member
                  • Nov 2011
                  • 1360

                  'But to me it's obvious that HASCI is expecting to see 250 hairs in recipient. Cause they labled 150 hairs as single (usable) grafts and 50 hairs as double (usable) grafts. '

                  exactly....we have 500 hairs in petri and expectation will be 250....

                  Comment

                  • Arashi
                    Senior Member
                    • Aug 2012
                    • 3888

                    Originally posted by didi
                    'But to me it's obvious that HASCI is expecting to see 250 hairs in recipient. Cause they labled 150 hairs as single (usable) grafts and 50 hairs as double (usable) grafts. '

                    exactly....we have 500 hairs and expectation will be 250....
                    It seems about 60% of the singles are 2 hairs. 10% is 1 hair and 30% 3. Which would total

                    180
                    15
                    135

                    Plus 110 in the 2's section, total 440 hairs in the petridish. This is just a preliminary guess, going to count them all and I suggest you start doing too.

                    Comment

                    • didi
                      Senior Member
                      • Nov 2011
                      • 1360

                      how is it fair to expect 250 when its clear that these are just transected grafts, ex 2 hair grafts converted to 1s.....

                      JJJR was the first to point that out...

                      Comment

                      • didi
                        Senior Member
                        • Nov 2011
                        • 1360

                        "It seems about 60% of the singles are 2 hairs'

                        Now im just waiting IM to say that they are all telogen hairs......feel sorry for James having so many hairs in non-growing phase...

                        Comment

                        • Arashi
                          Senior Member
                          • Aug 2012
                          • 3888

                          Originally posted by didi
                          how is it fair to expect 250 when its clear that these are just transected grafts, ex 2 hair grafts converted to 1s.....

                          JJJR was the first to point that out...
                          JJJRS thinks 65% hairs regrow. That would mean James lost 154 in donor IF there are indeed 440 in petridish. If all hair in donor grows, we'll see 250 hairs there. 154 hairs sacrificied in donor, to achieve 250 in recipient. Hence 40% regrowth. That's been my point all along.

                          Comment

                          • gc83uk
                            Senior Member
                            • Nov 2011
                            • 1339

                            Originally posted by Arashi
                            Hehe. This is just a terminology discussion and to me it's rather pointless but ok. What I'm saying: when we analysed your scalp, we saw 80% of grafts regenerate. However, quite a few 2 hair graft regenerated as 1 hair grafts. Hence JJJJRS found out that if we were looking at haircount, not 80% but 65% of hairs regenerated. So yeah, if you count a 2 hair graft regenerating as 1, you'd see 80%. But if you'd look at the HAIRS you'd see 65% regenerate.
                            OK, so a 2 hair FU regrowing as a single is 50% regrowth, which we are agreed on.

                            If we're going on James petri dish of 200 grafts equating to e.g 500 extracted hairs, then you could also argue hypothetically that one of my procedures of 700 extracted grafts had 1750 hairs in the petri dish extracted. With 1000 hairs in my recipient from 700 grafts which I believe is fairly accurate, 750 hairs have gone missing.

                            So if your using the 65% figure of 'Hairs', then of the 1750 hairs extracted about 1100 regrow in the donor, but of these 1100, 750 never even grown in the recipient area (1750 - 1000), so perhaps only 350 hairs regrown from the actual 1000 hairs which are growing in the recipient.

                            So in effect your getting net gain on the head of 350 hairs from a 700 graft (1000 hair) procedure. So not doubling, but in my case, you start with 100 hairs and end up with 135ish.

                            There is nothing wrong with the above, still better than FUE.

                            I won't mention this again, honest!

                            I'll get on with counting.

                            Comment

                            • Arashi
                              Senior Member
                              • Aug 2012
                              • 3888

                              Originally posted by gc83uk
                              If we're going on James petri dish of 200 grafts equating to e.g 500 extracted hair
                              HASCI labled 250 hairs as usuable. Of course maybe they won't grow all, but I'm still expecting to see 250 hairs in recipient. And I think there will be less than 500 hairs in the petridish, expecting about 450, maybe a bit less.

                              Comment

                              • Arashi
                                Senior Member
                                • Aug 2012
                                • 3888

                                Anyway, going to mail Kristel and see what she says about all this

                                Comment

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