How strong is donor dominance? Proof

michael barry

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Here is a study in which dark hairs from the back of the head are moved into areas affected by greying. The dark hairs have stayed dark in one patient TEN YEARS after implantation...............................showing the hair retains its characteristics, its resistance to Male Pattern Baldness INDIVDIUALLY based on the area of the head that it came from.



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Donor Site Dominance in Action:

Transplanted Hairs Retain Their Original

Hair Pigmentation Long-Term

Dinh, Hope V.;1 Sinclair, Rodney;1 Martinick, Jennifer;2

1. Department of Dermatology, St Vincent’s Hospital,

Melbourne, VIC, Australia; 2. New Hair Clinic, Nedlands,

Perth, WA, Australia

The concept of ‘donor dominance’ in hair transplantation

refers to autografts which continue to maintain their

integrity and characteristics after transplantation to a new

site. Such hairs may retain their original texture and rate of

growth. Hair transplantation for patients with androgenetic

alopecia rely on this concept of donor dominance for a

successful and long-lasting result. Recently, the concept

of ‘recipient dominance’ in hair transplantation has been

debated. In a study of patterns after hair transplantation to

the scalp and eyebrows in patients affected by madarosis,

Lee et al found that the greying rate of hairs approximated

the recipient site rather than the donor site.

We report on the long-term maintenance of follicular

pigmentation in transplanted hairs. We describe two

patients affected by both androgenetic alopecia and hair

greying in the transplant recipient area. They were given

autografts of normally pigmented hair follicles harvested

from the occipital area. More than one year posttransplantation,

their donor hairs have remained pigmented

long-term, despite being implanted in scalp affected by

greying. In one patient the pigmented hairs have remained

stable for 10 years.
As the process of greying usually affects

the temporal scalp .rst, then progresses onto the vertex
 
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