134 citations,
September 2008 in “Lasers in surgery and medicine” Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
211 citations,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
156 citations,
October 2012 in “Seminars in Cell & Developmental Biology” Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.
53 citations,
January 2006 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Reduced AR gene methylation may cause early pubic hair growth in girls.
31 citations,
February 2019 in “International Journal of Cosmetic Science” Caffeine applied to the scalp can protect hair follicles from UV damage.
19 citations,
April 2010 in “Journal of Dermatological Treatment” Partial hair follicle extraction can effectively double the number of hair follicles for transplants, with most surviving and growing normally after a year.
8 citations,
October 2008 in “Medical hypotheses” Baldness might be caused by scalp weight pressing on hair follicles.
7 citations,
July 2012 in “Regenerative Medicine” New treatments for diabetes, central nervous system repair, and cartilage injury were found, and a way to create functional hair follicles from stem cells was developed.
4 citations,
January 2015 in “International Journal of Trichology” Transplanted hair follicles can change and adapt to new areas of the body, with the immune system possibly playing a role in this adjustment.
2 citations,
February 2023 in “Transgenic Research” The E2 protein affects gene activity in hair follicles of mice.
1 citations,
January 2020 in “Research Square (Research Square)” Inherited color dilution in Rex rabbits is linked to DNA methylation changes in hair follicles.
759 citations,
February 2009 in “Current Biology” Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.
98 citations,
July 2014 in “Trends in Molecular Medicine” Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.
70 citations,
April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
40 citations,
June 2009 in “Journal of Cutaneous Pathology” AGA patients have fewer hairs and smaller follicles; T:V ratio above 4:1 may indicate AGA.
38 citations,
January 2015 in “Journal of Cosmetic Dermatology” The nutritional supplement improved hair density and reduced hair loss in women with female pattern hair loss.
34 citations,
July 2010 in “Expert Opinion on Drug Delivery” The document concludes that there is no agreed-upon best method for measuring drug delivery within hair follicles and more research is needed to validate current techniques.
18 citations,
September 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” VDUP1 is found in skin and hair follicles, interacts with sciellin, and may help regulate skin cell differentiation.
17 citations,
June 2019 in “The journal of immunology/The Journal of immunology” A specific DNA region is crucial for Foxn1 gene expression in thymus cells but not in hair follicles.
11 citations,
February 2020 in “Dermatology and therapy” Low-Level Light Therapy significantly reduced inflammation and promoted hair regrowth in patients with Lichen planopilaris.
10 citations,
December 2021 in “Frontiers in cell and developmental biology” Glypican-1 is important for blood vessel growth in hair follicles and could help treat hair loss.
9 citations,
January 2005 in “Experimental dermatology” Melatonin receptors in hair follicles help regulate hair growth and could treat hair loss.
4 citations,
January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
2 citations,
April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The skin's basement membrane is specially designed to support different types of connections between skin layers and hair follicles.
August 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Too much β-catenin activity can mess up the development of mammary glands and make them more like hair follicles.
July 2023 in “Research Square (Research Square)” Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.
96 citations,
April 2007 in “Journal of Investigative Dermatology” Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.
28 citations,
July 2008 in “Developmental Biology” Smad4 is important for healthy hair follicles because it helps produce a protein needed for hair to stick together and grow.
27 citations,
February 2017 in “Biomedicine & Pharmacotherapy” White wax and policosanol from white wax effectively reduced hair loss and promoted hair growth in mice better than a known hair growth drug.
14 citations,
November 2005 in “Life sciences” Vitamin D3 may protect rat hair follicles from radiation damage.