TLDR Human hair follicles can regenerate after removal, but with low success rate.
This study from 1996 investigated the ability of human hair follicles to regenerate after amputation and transplantation onto athymic mice. The results showed that human hair follicles have the capacity to regenerate after removal, but the success rate was relatively low. The study emphasizes the importance of specific cellular subpopulations within the follicle and the role of dermal-epidermal interactions in adult follicle activities. The study suggests that the human hair follicle has the potential for regeneration, but further research is needed to improve the success rate.
Cited in this study
2 / 2 results
39 citations
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April 1992 in “Development” Both cell and non-cell parts are important for rat whisker follicle regrowth.
23 citations
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December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
3 citations
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May 2017 in “British journal of dermatology/British journal of dermatology, Supplement” Certain cells around hair follicles help improve skin regeneration for potential use in skin grafts.
3 citations
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July 2012 in “Sokoto Journal of Veterinary Sciences” As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.
3 citations
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May 2010 in “Endocrinology” The mouse model suggests male pattern baldness may be due to an enzyme increasing DHT and higher androgen receptor levels in hair follicles.
August 2000 in “Chinese Journal of Dermatology” 
72 citations
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December 1996 in “Journal of Investigative Dermatology” Human hair follicles can regenerate after removal, but with low success rate.
31 citations
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September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
