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June 1994 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair stops producing melanin as it transitions from the growth phase to the resting phase.
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September 2009 in “Experimental Dermatology” A reliable system was developed to distinguish hair growth stages, aiding in identifying hair growth promoters or inhibitors.
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle melanocytes die during hair regression.
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August 1994 in “Journal of Investigative Dermatology” Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
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February 2005 in “Endocrinology” Estrogen receptors affect hair growth, with ER beta slowing down the hair cycle changes caused by ER alpha.
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May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.
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March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
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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.
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January 2003 in “Journal of Investigative Dermatology” Thrombospondin-1 is crucial for hair follicle regression and reduced blood vessel growth during the catagen phase.
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January 1998 in “International Journal of Molecular Medicine” Lipid peroxides can cause early hair loss by damaging hair follicles.
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July 1997 in “British Journal of Dermatology” The inner root sheath is crucial for hair follicle stability during the transition from growth to involution.
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December 2006 in “The American journal of pathology” Edar signaling is crucial for controlling hair growth and regression.
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July 2012 in “PLOS ONE” Estrogen can temporarily slow down hair growth but this can be reversed.
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September 2003 in “Journal of Investigative Dermatology” Overexpression of COX-2 causes early hair loss in mice, but can be prevented with a COX-2 inhibitor.
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November 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Different melanocyte types in hair follicles either survive or die during the catagen phase.
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October 2013 in “PLoS ONE” MicroRNAs play a key role in wool growth in Tibetan sheep.
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October 2018 in “PloS one” Key genes regulate hair follicle phase changes in Inner Mongolia cashmere goats.
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April 2015 in “Journal of Investigative Dermatology” GasderminA3 is important for normal hair cycle transitions by controlling Wnt signaling.
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January 2014 in “Annals of Dermatology” Sfrp2 increases during hair follicle catagen phase and slows keratinocyte growth.
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May 2022 in “BMC Veterinary Research” lncRNAs play a key role in hair follicle development, affecting cashmere quality and yield.
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January 2003 in “Journal of Investigative Dermatology” Blocking a specific receptor slows down hair loss in mice.
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July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
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January 2017 in “Experimental Dermatology” Igf1r helps regulate hair growth cycles.
19 citations
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November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.
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July 2015 in “Journal of Ginseng Research” Korean Red Ginseng may protect against hair loss caused by chemotherapy.
17 citations
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November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
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August 2017 in “International Journal of Molecular Medicine” Panax ginseng extract may help prevent hair loss caused by DKK-1.
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September 2008 in “Archives of Dermatological Research” Roxithromycin, an antibiotic, can increase hair growth and might be used as a treatment for hair loss.
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January 2015 in “Genetics and molecular research” The transition from growth to regression in Cashmere goat hair follicles involves changes in expression of genes related to keratin and cell differentiation.