TLDR Partial hair follicle extraction can effectively double the number of hair follicles for transplants, with most surviving and growing normally after a year.
In 2010, a study on partial longitudinal follicular unit extraction (FUE) was conducted with five male patients aged 36-61 with androgenetic alopecia to assess whether this method could preserve donor hair follicles and optimize hair transplantation. The study found that after 3 months, 92.1% to 104.1% (mean 97.7%) of the donor site partial units survived, and after 1 year, 91.1% to 101.5% (mean 96.1%) of the implanted partial units in the recipient area showed hair growth with characteristics similar to the donor area. The multiplication rate of hairs was between 83.2% and 102.1%, with a mean of 93.3%. The study concluded that partial FUE can generate two hair follicles from one original follicle, with a high rate of hair multiplication and preservation in both donor and recipient areas. However, the study had limitations, including a small sample size and the inclusion of patients with previous hair transplants, and suggested that further research with more patients is needed to confirm the clinical relevance of the technique.
103 citations
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June 2007 in “Endocrinology and Metabolism Clinics of North America” Male pattern hair loss is genetic and influenced by hormones, with treatments like minoxidil and surgery available.
193 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Hair loss common in Australia; men affected earlier, more often than Asians; women less concerned.
82 citations
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May 2004 in “British Journal of Dermatology” Stem cells are present in plucked hair follicles and can be maintained in culture.
253 citations
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March 1994 in “Developmental dynamics” Apoptosis is essential for human skin development and forming a functional epidermis.
8 citations
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February 2016 in “The American Journal of Dermatopathology” Hair transplants can make hair follicles larger and hair shafts thicker.
4 citations
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January 2015 in “International Journal of Trichology” Transplanted hair follicles can change and adapt to new areas of the body, with the immune system possibly playing a role in this adjustment.
20 citations
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December 2010 in “Burns” PL-FUT is an effective hair restoration method for burn victims with minimal scarring and high patient satisfaction.
14 citations
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September 2010 in “Annals of Plastic Surgery” Hair restoration has evolved from surgery to drugs to potential gene therapy, with improved results and ongoing research driven by high demand.
17 citations
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June 2002 in “Dermatologic Surgery” Chinese patients have fewer hair follicles than Caucasians, and transplanting hair at 40% of normal density works for natural-looking hairlines.
83 citations
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April 1999 in “Dermatologic Surgery” The research found that for a typical hair density, about 11 square centimeters of donor scalp is needed to get 800 hair grafts for transplantation.
