15 citations
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October 2011 in “Gynecological Endocrinology” This study found that obesity in PCOS women with biochemical hyperandrogenemia lowers androstenedione levels and increases the testosterone to androstenedione ratio, but this was not observed in women with clinical hyperandrogenemia or in controls.
18 citations
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September 1972 in “British Journal of Pharmacology” In this study on male rats, parachlorophenylalanine treatment induced hypersexual behavior and hair loss linked to increased social interaction but had no effect on brain serotonin when testosterone was used instead.
July 2022 in “World Journal of Advanced Research and Reviews” This study found that methanolic extract of Cordia plathytyrsa increased testosterone levels in male rats but did not affect other evaluated metabolic parameters.
July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” In this animal study, methanolic extract of *Cordia plathytyrsa* increased testosterone synthesis in male rats but had limited effects on metabolic parameters, while *Piptadeniastrum africanum* raised triglycerides and both extracts did not cause oxidative stress.
10 citations
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August 2014 in “Skin research and technology” This study found that variations in sleep patterns, free testosterone, and 5-alpha-reductase type 1 activity are associated with changes in sebum excretion in women, which may contribute to variability in acne studies.