165 citations
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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.
158 citations
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August 2011 in “Reviews in endocrine and metabolic disorders” Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.
147 citations
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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.
137 citations
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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
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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.
126 citations
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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.
122 citations
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July 2005 in “The FASEB journal” Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.
121 citations
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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
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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.
113 citations
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November 2017 in “Scientific Reports” Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.