147 citations,
September 2006 in “Developmental Cell” Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.
142 citations,
September 2020 in “Journal of neurophysiology” Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
139 citations,
July 1991 in “Journal of The American Academy of Dermatology” Understanding hair follicle anatomy helps diagnose hair disorders.
138 citations,
June 2019 in “Stem Cells and Development” Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.
137 citations,
September 2005 in “Proceedings of the National Academy of Sciences of the United States of America” The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.
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.
129 citations,
January 2009 in “International Journal of Trichology” Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.
126 citations,
April 2006 in “International Journal of Dermatology” The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.
126 citations,
January 1987 in “Journal of The American Academy of Dermatology” The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.
125 citations,
December 2016 in “Molecules” Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.
122 citations,
July 2005 in “The FASEB journal” Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.
121 citations,
March 1989 in “Journal of Investigative Dermatology” Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.
118 citations,
September 2004 in “Clinics in Dermatology” Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.
118 citations,
April 1998 in “Dermatologic Clinics” Finasteride and minoxidil are effective for hair regrowth, while treatments for alopecia areata have varying success and continuous treatment is necessary.
113 citations,
November 2017 in “Scientific Reports” Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.
111 citations,
January 2007 in “Seminars in cell & developmental biology” Hair, teeth, and mammary glands develop similarly at first but use different genes later.
109 citations,
December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
108 citations,
July 2004 in “American Journal of Pathology” Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.
107 citations,
September 2002 in “Journal of Investigative Dermatology” Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.
106 citations,
March 2014 in “BioEssays” We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.
105 citations,
February 1996 in “Journal of biological chemistry/The Journal of biological chemistry” The TGM3 gene's promoter region is key for skin and hair cell function and may aid gene therapy.
103 citations,
November 2014 in “Journal of Cell Biology” MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.
103 citations,
December 2011 in “Journal of the American Academy of Dermatology” Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.
103 citations,
January 2006 in “Journal of Cell Science” The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
100 citations,
November 1996 in “Molecular Medicine Today” Growth factors and cytokines are important for hair growth and could potentially treat hair loss, but more research is needed to overcome challenges before they can be used in treatments.
98 citations,
May 2008 in “British Journal of Dermatology” There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.
97 citations,
September 2011 in “British Journal of Dermatology” The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
96 citations,
April 2007 in “Journal of Investigative Dermatology” Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.
92 citations,
June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
92 citations,
October 2002 in “Journal of The American Academy of Dermatology” Finasteride improves hair loss in women with hyperandrogenism.