33 citations,
April 2005 in “British Journal of Dermatology” Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.
14 citations,
December 2020 in “Journal of Investigative Dermatology” Aging causes changes in the scalp that can affect hair growth and lead to older-looking hair in women.
3 citations,
May 2011 in “Practice nursing” As skin ages, it gets thinner, paler, and more wrinkled, and protection and care like sunblock and moisturizers are important.
242 citations,
February 2016 in “Science” Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.
208 citations,
December 2003 in “Journal of Investigative Dermatology” Certain cells from hair follicles can create new hair and contribute to hair growth when implanted in mice.
165 citations,
June 2007 in “European Journal of Cell Biology” Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.
86 citations,
December 2001 in “Experimental dermatology” Mutant mice help researchers understand hair growth and related genetic factors.
77 citations,
March 2021 in “Nature” Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.
77 citations,
July 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
77 citations,
July 2013 in “Best Practice & Research in Clinical Obstetrics & Gynaecology” Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.
76 citations,
August 2018 in “International Journal of Cosmetic Science” Dermal Papilla cells are a promising tool for evaluating hair growth treatments.
71 citations,
January 2019 in “International journal of biological sciences” Exosomes from dermal papilla cells help hair growth by making hair follicle stem cells multiply and change.
66 citations,
July 2015 in “Journal of Molecular Biology” The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.
65 citations,
November 2012 in “Tissue Engineering Part B-reviews” Hair follicle stem cells are a promising source for tissue repair and treating skin or hair diseases.
62 citations,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
59 citations,
March 2020 in “Journal of Biomedical Science” Understanding how hair follicle stem cells work can help find new ways to prevent hair loss and promote hair growth.
56 citations,
November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
54 citations,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Disruptions in hair follicle fibroblast dynamics can cause hair growth problems.
47 citations,
June 2019 in “Nature Communications” Noncoding dsRNA boosts hair growth by activating TLR3 and increasing retinoic acid.
42 citations,
February 2021 in “Signal Transduction and Targeted Therapy” Hair follicle regeneration possible, more research needed.
42 citations,
March 2018 in “PLOS Biology” Autophagy is important for human hair growth and health.
38 citations,
June 2017 in “The Journal of Dermatology” Aging in hair follicle stem cells leads to hair graying, thinning, and loss.
29 citations,
December 2016 in “The EMBO Journal” Gata6 is important for protecting hair growth cells from DNA damage and keeping normal hair growth.
27 citations,
June 2015 in “Journal of photochemistry and photobiology. B, Biology” The new lab-grown skin model is good for testing sunscreen's protection against DNA damage from UV light.
26 citations,
January 2013 in “BioMed Research International” Hormonal changes after childbirth and menopause can lead to women's hair loss and facial hair growth, with a need for better treatments.
19 citations,
December 2018 in “Experimental and Molecular Medicine” Small molecule IM boosts hair growth by changing stem cell metabolism.
19 citations,
January 2018 in “BioMed Research International” miR-195-5p reduces hair growth ability in cells by blocking a specific growth signal.
16 citations,
April 2021 in “International Journal of Molecular Sciences” Micro-current stimulation may promote hair growth more effectively than standard treatments.
16 citations,
December 2019 in “Animals” Overexpressing Tβ4 in goats' hair follicles increases cashmere production and hair follicle growth.
14 citations,
January 2009 in “Experimental Dermatology” Hair sheds gradually from the follicle, with readiness to shed indicated by less attachment material.