TLDR The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.
The study analyzed hair follicles from 29 individuals to provide measurements useful for hair transplantation and regeneration research. It found that the average length of a scalp hair follicle is 4.16 mm, with the bulge stem cell region extending from 1 mm to 1.8 mm in depth. For hair transplant procedures, it is recommended to cut at a depth of less than 1 mm to preserve the bulge zone. The study also noted that the infundibulum can be removed without impacting hair regrowth, and that the permanent portion of the hair follicle (infundibulum plus isthmus) constitutes 40% of the total length. The findings suggest that the level of transection significantly affects the follicle's regenerative capacity, highlighting the need for precise measurement in hair follicle research.
16 citations
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January 2007 in “Dermatology” Scientists have made progress in understanding hair follicle stem cells, identifying specific genes and markers, and suggesting their use in treating hair and skin conditions.
550 citations
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December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” Researchers successfully isolated and identified key markers of stem cell-enriched human hair follicle bulge cells.
October 2021 in “Indian Journal of Plastic Surgery” You can use hair from other parts of the body for scalp hair restoration.
2 citations
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September 2017 Hair and scalp diseases can affect hair transplant success in Asians, and managing them is crucial.
12 citations
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May 2017 in “Journal of pharmaceutical and biomedical analysis” The method shows that zinc pyrithione and climbazole from anti-dandruff shampoo effectively reach the scalp.
17 citations
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December 2010 in “Journal of Investigative Dermatology” Flightless I protein affects hair growth, with low levels delaying it and high levels increasing hair length in rodents.
October 1987 in “Clinics in Dermatology” Scalp reduction can improve hair distribution in certain baldness cases but requires careful patient selection and understanding of facial structure.
8 citations
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February 1982 in “Plastic & Reconstructive Surgery” Scalp reduction can effectively treat male pattern baldness, especially when combined with hair transplants.
