316 citations,
June 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
57 citations,
March 2019 in “Immunity” The document concludes that the skin's immune system is complex, involving interactions with hair follicles, nerves, and microbes, and can protect or cause disease, offering targets for new treatments.
14 citations,
April 2016 in “Cell Transplantation” Neural stem cell extract can safely promote hair growth in mice.
75 citations,
March 2014 in “Journal of Investigative Dermatology” Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.
66 citations,
June 2010 in “Experimental Dermatology” The hair follicle is a great model for research to improve hair growth treatments.
98 citations,
December 2003 in “The FASEB Journal” Thymosin β4 promotes hair growth by activating stem cells in hair follicles.
1 citations,
November 2023 in “iScience” A protein called desmoglein 3 is important for keeping hair follicle stem cells inactive and helps in their regeneration.
18 citations,
October 2017 in “PLOS ONE” The study concluded that similar pathways regulate hair growth in dogs and mice, and these pathways are disrupted in dogs with Alopecia X, affecting stem cells and hormone metabolism.
4 citations,
July 2014 in “Journal of Investigative Dermatology” Old people have less hair because their hair follicles don't regenerate as well, not because of fewer stem cells, and a protein called follistatin might help reactivate hair growth.
3 citations,
August 2013 in “Stem cells” Certain inhibitors applied to the skin can promote hair growth by maintaining a key hair growth signal.
68 citations,
April 2012 in “Journal of Investigative Dermatology” The conclusion is that Fgf18 and Tgf-ß signaling could be targeted for hair loss treatments.
April 2024 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Retinoic acid helps activate hair growth in people with common hair loss by working on a specific cell growth pathway.
January 2022 in “Stem cell biology and regenerative medicine” New biofabrication technologies could lead to treatments for hair loss.
14 citations,
February 2021 in “Experimental Dermatology” Cannabinoid receptor-1 signaling is essential for the survival and growth of human hair follicle stem cells.
9 citations,
March 2019 in “Scientific reports” Temporary ROS production in cultured human hair follicles promotes growth and stem cell activation.
3 citations,
June 2006 in “Expert Review of Dermatology” The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.
2 citations,
August 2023 in “Autophagy” Autophagy helps control skin inflammation and cancer responses and regulates hair growth by affecting stem cell activity.
4 citations,
January 2015 in “Hair therapy & transplantation” Hair follicle stem cells could be used to treat the skin condition vitiligo.
72 citations,
July 2012 in “Journal of Investigative Dermatology” Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.
April 2018 in “Journal of Investigative Dermatology” Activating Nrf2 helps wounds heal faster by increasing hair follicle stem cells.
42 citations,
January 2017 in “Stem cells international” Adding hyaluronic acid helps create larger artificial hair follicles in the lab.
January 2022 in “Stem cell biology and regenerative medicine” Stem cell therapies show promise for hair regrowth but need more research to confirm effectiveness.
April 2018 in “Journal of Investigative Dermatology” Both Th1 and Th2 immune responses are increased in alopecia areata, with Th2 response more strongly linked to how severe the disease is.
130 citations,
January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
96 citations,
April 2007 in “Journal of Investigative Dermatology” Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.
170 citations,
November 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin can heal wounds without hair follicle stem cells, but it takes a bit longer.
101 citations,
March 2019 in “Cell Stem Cell” Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.
35 citations,
July 2018 in “Cell Reports” The study found that a specific area of the hair follicle helps start hair growth by reducing the blocking effects on certain cells and controlling growth signals.
February 2024 in “Plastic and Reconstructive Surgery – Global Open” Stem cell therapies show promise for hair regrowth in androgenetic alopecia.
23 citations,
October 2021 in “Cell Stem Cell” Hair thinning causes stem cell loss through a process involving Piezo1, calcium, and TNF-α.