March 2020 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The dermal sheath's contraction is crucial for hair follicle regression and stem cell relocation.
52 citations
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October 2005 in “Journal of Investigative Dermatology” Hair follicle stem cells have greater longevity and adhesion, while transit-amplifying cells are more mobile.
23 citations
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July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
1 citations
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January 2009 in “Journal of Dermatology and Venereology” Cells from the upper hair follicle grow more actively, suggesting stem cells may be located there.
6 citations
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October 1988 in “Clinics in Dermatology” The molecular details of hair growth are not well understood.
September 2020 in “Research Square (Research Square)” Multi-walled carbon nanotubes can enhance plant root hair growth by affecting nitric oxide and ethylene production.
9 citations
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January 2008 in “Acta histochemica et cytochemica” COX-2 levels change during the hair cycle and affect skin and hair growth.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
81 citations
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September 2013 in “PLoS ONE” Primary and secondary hair follicle cells in Cashmere goats have different gene expressions affecting hair growth and size.
4 citations
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January 2020 53 citations
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October 2003 in “Developmental Biology” Too much Sonic Hedgehog protein stops hair growth in embryos.
2 citations
,
July 2021 in “Biochemical and Biophysical Research Communications” CTHRC1 helps hair grow back, and plantar dermis mixture boosts it.
16 citations
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May 2015 in “Tissue Engineering Part C-methods” A two-step method was created in 2015 to make more cells that help with hair growth, but they need to be combined with other cells for 4 days to actually form new hair.
115 citations
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December 2019 in “The Plant Journal” Nitrate helps plants manage phosphate uptake and starvation responses through NIGT1 proteins.
January 2016 in “프로그램북(구 초록집)” LED light promotes hair growth by stimulating cell proliferation and reducing cell death.
21 citations
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April 2004 in “Australasian Journal of Dermatology” A 3-year-old girl has a rare condition causing sparse hair and nail issues, with minimal improvement from treatment.
April 2026 in “Journal of Ethnopharmacology” ocu-miR-205 affects hair density in Rex rabbits by altering hair follicle growth and signaling pathways.
29 citations
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January 2021 in “G3 Genes Genomes Genetics” A 195 bp duplication in the HOXC10 gene causes crests in domestic chickens.
29 citations
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December 2004 in “Developmental biology” cDermo-1 causes dense skin, feathers, and scales in chickens.
201 citations
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May 2001 in “Proceedings of the National Academy of Sciences” Overexpression of COX-2 in mice skin causes abnormal skin and hair development.
6 citations
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March 2022 in “PLoS ONE” Centipedegrass extract may promote hair growth by activating certain cell pathways.
February 2024 in “Scientific Reports” Cinnamic acid may help hair grow by activating oxytocin receptors.
January 2026 in “Digilib Repository Unila (Lampung University)” Celery essential oil at 2% can effectively promote hair growth.
7 citations
,
August 2017 in “European journal of endocrinology” Mutations in the POC1A gene can cause a unique form of extreme insulin resistance and short stature.
30 citations
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January 2013 in “Human Mutation” A mutation in the HOXC13 gene causes hair and nail problems in a Syrian family.
January 2024 in “Figshare” Activating autophagy in hair follicle stem cells can lead to hair growth and repair by affecting sugar metabolism.
56 citations
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February 2012 in “Developmental biology” Sostdc1 controls the size and number of hair and mammary gland structures.
80 citations
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April 2011 in “Plant physiology” White lupin uses specific genes to grow root hairs and access phosphorus when it's scarce.
September 2016 in “Journal of dermatological science” The OVOL1-OVOL2 axis is important for hair follicle differentiation and can help diagnose certain hair-related tumors.