1 citations
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January 2021 in “Processes” Researchers successfully grew horse skin cells that produce pigment from hair follicle samples.
The inner root sheath in hair follicles plays a key role in hair growth and health.
March 2024 in “Tissue and cell/Tissue & cell” Telomerase-positive cells are mainly in the bulb matrix and outer root sheath of hair follicles.
November 2012 in “International Journal of Data Science and Artificial Intelligence” Glycyrrhiza glabra root extract promotes faster and longer hair growth in female rats.
135 citations
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November 1987 in “Differentiation” Outer root sheath cells consistently express certain keratins influenced by their environment.
93 citations
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July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
61 citations
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August 1993 in “PubMed” Basal cell epithelioma likely starts from the hair follicle's outer root sheath.
59 citations
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August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
44 citations
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August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
37 citations
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July 1999 in “The EMBO Journal” Overexpression of certain genes can shorten hair by disrupting the hair-growth cycle.
31 citations
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December 1991 in “Annals of the New York Academy of Sciences” ORS and hair matrix cells balance growth and differentiation better than normal keratinocytes, with human dermal fibroblasts crucial for proper differentiation.
23 citations
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February 2004 in “British Journal of Dermatology” Keratin in mouse hair follicles is complex and plays specific roles.
22 citations
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March 2017 in “Scientific reports” Double-stranded RNA causes inflammation in hair follicle cells, which may help understand and treat alopecia areata.
22 citations
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June 2008 in “Experimental Dermatology” Heparanase is essential for hair follicle health and inner root sheath differentiation.
20 citations
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September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
19 citations
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September 2019 in “British Journal of Dermatology” FOL-005 peptide can reduce human hair growth by lowering FGF7 levels.
17 citations
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March 2012 in “Journal of biological chemistry/The Journal of biological chemistry” Hairless protein affects hair follicle structure by regulating the Dlx3 gene.
13 citations
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January 2002 in “Biochemical and biophysical research communications” Interferon β from hair cells stops the growth of other hair cells.
12 citations
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January 2013 in “Acta Histochemica” Junctional proteins stabilize the inner root sheath and connect the companion layer in human hair.
9 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Sex hormones and antiandrogens can either stimulate or inhibit human hair follicle cell growth depending on the dose.
6 citations
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June 2017 in “Asian journal of beauty & cosmetology” Rosa multiflora root extracts may help promote hair growth and have anti-aging benefits.
5 citations
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August 2012 in “Journal of Dermatology” Tamoxifen may cause female hair loss by increasing androgen receptor expression.
4 citations
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April 1989 in “The Journal of Dermatology” Trichohyalin granules help inner root sheath cells in hair follicles harden by integrating with keratin filaments.
3 citations
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November 2019 in “Journal of Investigative Dermatology” Adenosine helps human hair grow and prevents hair loss by targeting specific cells.
2 citations
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October 2023 in “Science advances” Touching hair can activate nearby nerve cells through signals from the hair's outer layer.
March 2026 in “Journal of Bioscience and Bioengineering” Oxytocin from hair cells helps hair growth and stem cell increase.
Ashwagandha root extract improves skin and hair health without side effects.
Non-drug treatments like saw palmetto, horsetail, pumpkin seed oil, curcumin, and addressing nutritional deficiencies may help female hair loss.
July 2024 in “Biological and Pharmaceutical Bulletin” Licorice extract helps hair growth and may treat hair loss.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific mutation in the TRPV3 gene causes hair follicle cells to develop improperly, leading to hair loss.