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This study found that coadministration of 5α-reductase inhibitors with oral testosterone in oil significantly increases serum testosterone levels in medically castrated men compared to testosterone alone, with food intake minimally affecting these levels.

This study reported the development of a novel and reliable liquid chromatographic method to measure testosterone and epitestosterone in human urine, offering sensitive detection for doping control.

This study observed significant inter- and intra-individual variability in serum testosterone levels among women treated with subcutaneous testosterone implants, suggesting that therapy should be guided by clinical response rather than single serum measurements.

This study found that long-term finasteride therapy in men with BPH worsened erectile dysfunction and reduced testosterone levels, while these effects were not observed with tamsulosin.

This review discusses the limitations of serum androgen measurements in diagnosing and treating women with potential androgen-related disorders and the potential role of androgen replacement therapy for those with sexual interest/arousal disorders, reporting no new results.

In this study, co-administration of finasteride with oral testosterone undecanoate in young men with induced hypogonadism had no significant effect on serum testosterone or dihydrotestosterone levels, likely due to TU's unique absorption route.

This case report describes a 60-year-old postmenopausal woman with virilization and hirsutism caused by hilus-cell hyperplasia, which was confirmed following bilateral salpingo-oophorectomy.

In this study, five-year testosterone replacement therapy improved fasting blood sugar, HbA1c, and triglyceride levels in Japanese hypogonadal men without significantly affecting prostate-specific antigen levels.

This study found that salivary testosterone levels were significantly lower in oligospermic and azoospermic men compared to normal men, suggesting its potential use in assessing male androgen status.

This study established that a human epidermal model can be utilized to assess 5alpha-reductase activity and evaluate enzyme modulators, such as finasteride, for dermatological applications.

Testosterone replacement can help menopausal women with various symptoms, but should be used carefully and is not yet officially licensed in the UK for women.

In this study, researchers observed that a significant number of women in Eket, Nigeria, have low testosterone levels, while a subset with high free testosterone may have polycystic ovary syndrome.

This article reports two cases where ovarian hyperthecosis caused hyperandrogenism in postmenopausal women, confirmed by imaging and resolved after bilateral oophorectomy.

This study found that among men with serum testosterone levels below 3.33 ng/mL, the prevalence of kidney stones was significantly higher, independent of other metabolic factors.

In this study, autologous intratesticular PRP injection was found to be a feasible and well-tolerated procedure with low complication rates and quick recovery, but the authors indicated that current evidence is insufficient to confirm its effectiveness for mTESE.

In this systematic review, researchers observed that Toxoplasma gondii infection is associated with alterations in testosterone levels, generally increasing in humans but showing mixed effects in animals, highlighting a complex relationship that warrants further investigation.

This study systematically reviewed the use of topical testosterone products such as creams, gels, and patches, finding they effectively raise serum testosterone but pose significant systemic risks like acne and gynecomastia, necessitating careful medical oversight.

This review describes the clinical features of testosterone deficiency syndrome in aging men but reports no new experimental findings, highlighting the need for clinical recognition and treatment of TDS.

In this study, elevated serum levels of aldosterone and free testosterone, along with increased androgen and aldosterone receptor levels, were associated with early-onset androgenetic alopecia in female patients.

Low testosterone levels may contribute to female pattern hair loss in men.

This study concluded that albumin-bound testosterone is biologically important and significantly contributes to testosterone bioavailability in women receiving spironolactone.

This review examines age-related changes in androgen levels in women and explores the rationale for testosterone replacement therapy, but it reports no new clinical findings.

This study found that testosterone therapy improved physical performance and strength in older men with low testosterone over 36 months, whether administered alone or with finasteride.

This study used enhanced Raman spectroscopy to successfully detect ultra-low levels of free testosterone in women with PCOS, suggesting a potential low-cost method for early diagnosis.

This review discusses strategies for developing semi-solid topical generic products to match the quality of reference-listed drugs, using concepts like quality by design and reverse-engineering, but reports no new results.

This review discusses the complexities of interpreting thyroid function tests, highlighting the challenges primary care providers face due to patient demand and misinformation, but reports no new results.

This study found that testosterone therapy in trans men increased facial and body hair growth while the prevalence and severity of acne peaked at 6 months but were primarily mild after long-term treatment.

This article discusses the potential effects of exogenous testosterone, highlighting that its impact on prostate cancer progression, cardiovascular health, and behavior remains uncertain and needs further investigation.

This study suggests the existence of a new subtype of alopecia, called 'acute diffuse and total alopecia of the female scalp (ADTAFS)', characterized by acute, diffuse hair loss primarily in women and a rapid recovery.

This review discusses the use of testosterone therapy for low libido in women, noting mixed evidence on breast cancer risk and a lack of long-term safety data.