May 2023 in “IntechOpen eBooks” This review outlines the role of testosterone in male sexual development and its therapeutic use for male hypogonadism, covering its biosynthesis, secretion, metabolism, and various biological actions, but does not report specific study results.
131 citations
,
September 2017 in “Molecular and Cellular Endocrinology” This article discusses the role of androgens in metabolic and reproductive health and reports no new experimental results; the focus is on androgen receptor activation by testosterone and 5α-dihydrotestosterone.
5 citations
,
January 2017 in “Endocrinology” This chapter reviews the biosynthesis, mechanism of action, and therapeutic effects of testosterone and related androgens, but reports no new research findings.
2 citations
,
April 2007 in “Journal of Labelled Compounds and Radiopharmaceuticals” This article discusses the preparation of tritium-labeled testosterone metabolites and reports no new experimental findings.
35 citations
,
May 2022 in “Baillière's best practice and research in clinical endocrinology and metabolism/Baillière's best practice & research. Clinical endocrinology & metabolism” This review discusses the current understanding of androgen biosynthesis, mechanisms of action, and their roles in human biology, as well as related congenital and acquired disorders, but it reports no new research findings.
25 citations
,
June 2014 in “Journal of Endocrinology/Journal of endocrinology” This study found that local androgen biosynthesis and metabolism in human sebaceous glands play a crucial role in sebum synthesis and secretion.
19 citations
,
March 1998 in “Endocrinology” This study found that sex differences in somatostatin biosynthesis in rat hypothalamic neurons develop between postnatal day 1 and 5, influenced by the conversion of testosterone to estrogen.
6 citations
,
June 2006 in “International Journal of Gynecological Pathology” This study reports that in a case of benign Brenner tumor, elevated androgens may originate from luteinized stromal cells, as these cells do not convert androgen to estrogen due to suppressed aromatase biosynthesis.
6 citations
,
January 2003 in “Dermatology” This study reviewed 26 cases of X-linked recessive ichthyosis and observed 11 patients with advanced-stage androgenetic alopecia, suggesting a compensatory role of two steroid biosynthesis pathways.
5 citations
,
August 2018 in “Sexual Medicine Reviews” In this review and meta-analysis, the authors concluded that 5α-reductase inhibitor therapy is not consistently associated with significant increases in serum testosterone levels in men.
35 citations
,
October 2011 in “Medicine and science in sports and exercise” This review discusses the role of skeletal muscle in synthesizing bioactive androgens, highlighting that intramuscular androgens may influence muscle via intracrine action, but their precise function remains unclear.
1 citations
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March 2005 in “Trends in Endocrinology and Metabolism” Androgens affect behavior, hair, bones, muscles, and the heart, and can be used to treat certain conditions.
20 citations
,
June 2007 in “Recent Patents on Endocrine, Metabolic & Immune Drug Discovery” This review summarizes recent research and patents on 17β-HSD3, 17β-HSD5, and 3α-HSD3 inhibitors, suggesting their potential in treating androgen-dependent diseases, but reports no new clinical results.
11 citations
,
February 2016 in “Current Medicinal Chemistry” This review discusses various targets for treating prostate cancer and benign prostatic hyperplasia and reports on recent studies of new compounds and 5α-reductase inhibitors, but provides no new experimental results.
6 citations
,
July 2024 in “Heliyon” This study examined the evolutionary and functional homology of steroid 5α-reductase and DET2 proteins, identifying protists as a common ancestor, and discovered a new subclass DET2-like in plants, potentially involved in polyprenol reduction.
6 citations
,
September 2005 in “Expert Opinion on Pharmacotherapy” This review discusses the role of androgens in women's sexual health and highlights the need for further research on androgen replacement therapy to optimize quality of life, but reports no new clinical results.
11 citations
,
May 2024 in “Reproductive Biology and Endocrinology” In this study, researchers found that human ovaries at different life stages biosynthesize both canonical and non-canonical steroid hormones, with fetal ovaries showing higher enzyme activity related to estradiol and testosterone conversion compared to adult tissues.
February 2024 in “Cosmetics” In this study, researchers developed a novel platform for discovering potential hair loss inhibitors by investigating the testosterone/dihydrotestosterone biosynthetic pathway and its regulation through biochemical mechanisms involving 17β-HSD and 3β-HSD, combined with medicinal plant extracts.
45 citations
,
January 2012 in “The Journal of Steroid Biochemistry and Molecular Biology” This study found that overexpression of AKR1C3 in prostate cancer cells redirected androgen metabolism towards testosterone production, which facilitated cell proliferation, potentially reducing the effectiveness of finasteride treatment.
10 citations
,
February 2008 in “International Journal of Andrology” This study found that a 400-mg dose of oral testosterone with dutasteride increases serum testosterone levels for 8–10 hours in hypogonadal men, with the nanomilled formulation unaffected by food, suggesting a practical twice-daily therapy option.
April 2026 in “Al-Kufa University Journal for Biology” In this animal study, finasteride was found to significantly lower cortisol and increase testosterone levels in female rats, indicating its broader impact on endocrine regulation by altering adrenal and gonadal hormones.
21 citations
,
October 2011 in “British Journal of Dermatology” This study found that subcutaneous testosterone therapy improved scalp hair growth in a majority of androgen-deficient women who previously reported hair thinning and did not report hair loss as a side effect.
10 citations
,
April 2006 in “Seminars in Reproductive Medicine” This article reviews the limited evidence on testosterone therapy for premenopausal women and notes a lack of long-term safety and effectiveness data for this population.
June 2022 in “Journal of Experimental Biology and Agricultural Sciences” This study found that steroid hormones influence the quality indicators of fresh and cryopreserved stallion sperm, with testosterone negatively correlated with motility and estradiol positively correlated with survival rate.
July 2020 in “International Journal of Research” This review examines the development of cardiovascular risk factors related to testosterone levels in PCOS women and reports no new clinical results.
255 citations
,
October 1985 in “The Journal of Clinical Endocrinology & Metabolism” This study concluded that albumin-bound testosterone is biologically important and significantly contributes to testosterone bioavailability in women receiving spironolactone.
71 citations
,
August 2019 in “The journal of sexual medicine” In this study, transgender adolescents treated with testosterone for a median of 12 months experienced effective virilization, including voice deepening and increased hair growth, but also showed decreased HDL cholesterol and BMD z-scores, and increased hematocrit, with no short-term safety issues reported.
47 citations
,
January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
43 citations
,
August 2016 in “Scientific Reports” This animal study found that Cinnamomi cortex water extract reduced prostate weight and improved histological changes in a benign prostatic hyperplasia model, suggesting potential as a treatment.
33 citations
,
January 1997 in “Endocrinology” Testosterone was found to inhibit hair follicle epithelial cell proliferation in adult stumptailed macaques only when dermal papilla cells from bald scalps were present, and this effect was reversed by the antiandrogen RU 58841.