37 citations
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February 2023 in “Gut Microbes” This study found that administering the gut bacterium Thauera sp. strain GDN1 to mice significantly reduced their serum androgen levels, indicating gut bacteria may influence androgen metabolism.
22 citations
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January 2019 in “Climacteric” This study reports that oophorectomy significantly reduces serum testosterone levels in postmenopausal women, indicating the postmenopausal ovary's continued production of testosterone.
2 citations
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July 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that oral administration of Thauera sp. strain GDN1 reduced serum androgen levels in male mice by about 50%, suggesting its potential as a probiotic treatment for hyperandrogenism.
14 citations
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October 2022 in “Journal of the American Heart Association” This study found that among older men, lower calculated free testosterone was significantly associated with a higher risk of heart failure, suggesting a possible role of testosterone deficiency in heart failure incidence.
April 2019 in “Journal of Investigative Dermatology” In this study, engineered mice with a mutation similar to that in Olmsted syndrome showed progressive hair loss due to impaired inner root sheath keratinocyte differentiation and stem cell exhaustion.