506 citations
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March 2005 in “The Journal of Clinical Endocrinology and Metabolism” Testosterone therapy improves physical function, strength, and body composition in older men with low testosterone levels.
349 citations
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January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
249 citations
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April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
195 citations
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February 2007 in “The Journal of Clinical Endocrinology and Metabolism” Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
192 citations
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January 1976 in “The Journal of Clinical Endocrinology & Metabolism” Androgen levels increase with puberty and are linked to sexual hair development.
186 citations
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February 1980 in “Clinical Endocrinology” During puberty, hormone levels rise, with early increases in some steroids and most menstrual cycles becoming regular by six years after menarche.
163 citations
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November 2003 in “Journal of Investigative Dermatology” Low iron levels may be linked to some types of hair loss in women.
142 citations
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February 1985 in “Fertility and sterility” Spironolactone reduced hair thickness and some testosterone levels in women with excessive hair growth.
120 citations
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October 2007 in “Clinical Interventions in Aging” Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.
117 citations
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September 2003 in “Molecular & cellular proteomics” The technology can help diagnose and subtype autoimmune diseases by identifying specific autoantibodies.
89 citations
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December 2006 in “Lancet Oncology” Taking 1 mg/day finasteride for hair loss significantly lowers PSA levels in men, which may affect prostate cancer screening.
84 citations
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January 2018 in “Biomaterials Science” Sericin hydrogels heal skin wounds well, regrowing hair and glands with less scarring.
84 citations
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July 2003 in “European journal of biochemistry” Mouse skin can produce and process serotonin, with variations depending on hair cycle, body location, and mouse strain.
83 citations
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November 2002 in “British Journal of Dermatology” Low iron levels are not directly linked to chronic hair loss and iron supplements may not help.
83 citations
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April 1992 in “Clinical Endocrinology” Having enough iron improves the effectiveness of a specific hair loss treatment in women.
78 citations
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August 2012 in “Human molecular genetics online/Human molecular genetics” A new gene, JMJD1C, may affect testosterone levels in men.
77 citations
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September 1983 in “Acta Paediatrica” Dexamethasone effectively normalizes elevated steroid levels in girls with premature adrenarche.
73 citations
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January 2013 in “Annals of Dermatology” People with hair loss, especially those with certain types, have lower zinc levels, and zinc supplements might help.
72 citations
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April 2008 in “The Journal of urology/The journal of urology” Dutasteride and finasteride do not significantly affect bone density, blood fats, or blood production, but slightly lower PSA levels and minimally impact sexual function in healthy young men.
71 citations
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January 2014 in “Journal of Proteome Research” Women with PCOS have different levels of certain fats and proteins in their blood, which could help diagnose the condition.
71 citations
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January 2016 in “International Journal of Trichology” Biotin deficiency is not a major cause of hair loss in women, so biotin supplements are not likely to be an effective hair loss treatment.
70 citations
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February 2018 in “Seminars in Arthritis and Rheumatism” Belimumab reduces disease activity, steroid use, and flares in lupus patients.
65 citations
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January 2009 in “Annals of Dermatology” Zinc supplements increased zinc levels in some hair loss patients but didn't significantly improve hair growth.
65 citations
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October 1999 in “Journal of The American Academy of Dermatology” Finasteride effectively reduces hair loss by decreasing androgen levels.
62 citations
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January 2013 in “Skin Pharmacology and Physiology” Low iron and vitamin D levels are linked to hair loss in women.
60 citations
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February 1992 in “British Journal of Dermatology” Serum from alopecia patients does not stop hair growth in grafted skin on mice.
56 citations
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January 2008 in “Dermatology” Higher iron levels in the blood are not linked to increased hair loss in women.
52 citations
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July 2015 in “International Journal of Dermatology” Patients with alopecia areata have lower zinc levels, and zinc supplements might help.
52 citations
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March 1987 in “Journal of the American Academy of Dermatology” High DHEA-S levels may cause hair loss in young men.
52 citations
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December 1984 in “Journal of the American Geriatrics Society” Mineral levels in hair and serum don't help diagnose Alzheimer's.