46 citations
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April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
2 citations
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September 1971 in “Metabolism, clinical and experimental” In this study, patients with testicular feminization syndrome showed limited anabolic responsiveness to dihydrotestosterone, potentially due to reduced affinity of nuclear receptor sites for androgenic steroids rather than defective testosterone conversion.
March 2010 in “The Journal of Urology” This study found that men with early-onset androgenetic alopecia had larger prostate volumes and lower urinary flow rates compared to those without the condition, suggesting a potential link between AGA and urinary symptoms.
3 citations
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May 1990 in “Journal of Steroid Biochemistry” This study found that diagnosing non-classical 3 beta-hydroxysteroid dehydrogenase deficiency solely based on elevated serum or urinary 5-ene-steroids may not be reliable.
2 citations
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December 2020 in “Phytomedicine plus” In this study, researchers found that taking Saw palmetto and Pygeum africana supplements for five days altered the urinary steroid profile in a way that may interfere with the steroidal module of the Athlete Biological Passport.