May 2017 in “Endocrine Abstracts” Testosterone levels are not linked to erectile dysfunction in young and middle-aged men with HIV.
90 citations
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December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
78 citations
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November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
18 citations
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April 2010 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” The vitamin D receptor helps regulate skin and hair health independently of its usual vitamin D ligand.
29 citations
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December 2017 in “International Journal of Dermatology” People with alopecia areata often have lower vitamin D levels, which are linked to more severe and longer-lasting hair loss, but vitamin D receptor levels in the skin don't show the same pattern and don't predict treatment success.
October 2023 in “Acta Medica Nicomedia” Hirsutism greatly lowers the quality of life for Turkish women.
13 citations
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January 2012 in “International Journal of Trichology” Most hirsutism patients had idiopathic hirsutism or PCOS, with hormonal imbalances and signs like acne and irregular periods.
20 citations
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March 1975 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry” The study concludes that a genetic mutation in TFM mice leads to reduced androgen receptor activity, affecting the body's response to male hormones.
36 citations
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June 2014 in “International Journal of Dermatology” Dutasteride helps hair growth in those unresponsive to finasteride, but may cause more sexual dysfunction.