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In this study, cosyntropin-induced cortisol spikes did not affect hair cortisol concentration in captive grizzly bears, contrasting with stress responses observed in free-ranging bears during capture.

In this study, scalp hair sweating was a significant predictor of hair cortisol levels in healthy adults, while BMI and perceived stress, although associated, did not significantly predict cortisol levels.

This case study reports that low-dose testosterone therapy improved libido and sexual functions in a 36-year-old fragile X carrier female with hypoactive sexual desire disorder when monitored regularly for lab parameters.

This study found that cortisol levels, a biomarker of chronic stress, significantly increased in the post-COVID-19 lockdown period compared to pre-lockdown and during-lockdown periods, especially among females and young adults, reflecting sustained psychological stress from the pandemic.

This study found that women with polycystic ovary syndrome had significantly higher serum lactate dehydrogenase levels and lower levels of cortisol, dopamine, zinc, and vitamin D3 compared to healthy controls.

This study observed that testosterone concentrations in hair segments show some stability over time, but are influenced by factors like sebum integration, hair washing frequency, and individual hair growth rates.

This case report highlights Leydig cell hyperplasia as a rare cause of increased testosterone and postmenopausal hirsutism, resolved after bilateral salpingo-oophorectomy in a 64-year-old woman.

This study described clinical manifestations such as alopecia and hyperpigmentation in male dogs with hypoandrogenism, suggesting a need for further research on these endocrinopathies in animals.

This study found that testosterone concentrations in hair samples were moderately stable over three months, with cosmetic treatments like coloring increasing testosterone levels, while natural hair color in untreated hair did not affect testosterone measurements.

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 found that methanolic extract of Cordia plathytyrsa increased testosterone levels in male rats but did not affect other evaluated metabolic parameters.

This article reviews the role of 5α-reductase in cutaneous hyperandrogenism and the potential of 5α-reductase inhibitors and antiandrogens in treating conditions like hirsutism and male-pattern baldness, reporting no clinical results.

This review discusses the effects of testosterone therapy for transgender men, noting desired outcomes and potential risks, but reports no new research findings; the authors highlight a lack of high-quality data due to various study limitations.

This abstract discusses the unclear role of dihydrotestosterone (DHT) in postembryonic life in marsupials and possibly humans, reporting no new findings.

In this study, DHT and calculated free DHT were linked to higher risks of incident cardiovascular disease and all-cause mortality in elderly men, while total testosterone and calculated free testosterone showed no such associations.

This review discusses the pathways of androgen biosynthesis and reports no new findings, highlighting the need to understand the interplay between the classic and backdoor pathways.

This study observed that hair loss in captive rhesus macaques varies with season, sex, and housing conditions, and is significantly correlated with HPA axis activity as indicated by faecal cortisol metabolites.

This review discusses the negative health impacts of testosterone deficiency and the potential adverse effects of 5α-reductase inhibitors, emphasizing the need for patient-physician discussions regarding these treatments.

This review addresses the effects of testosterone on brain development and examines both the established sex differences in brain functions and the debate surrounding structural dimorphism in neuropsychiatric conditions.

Testosterone may both worsen and protect against COVID-19 effects in men.

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.

This case study describes a 15-year-old girl with a Sertoli–Leydig cell tumor who showed high androgen levels and steroidogenic responses similar to patients with polycystic ovary syndrome before surgery.

This chapter reviews the biosynthesis, mechanism of action, and therapeutic effects of testosterone and related androgens, but reports no new research findings.

This study emphasizes the necessity of confirming elevated testosterone levels detected by immunoassay with liquid chromatography-tandem mass spectroscopy before pursuing more complex diagnostic evaluations.

This study suggests that hair cortisol and cortisone may moderate the relationship between work stress and depressive symptoms in Chinese fishermen, although their mechanisms differ.

In this study, researchers found no significant differences in serum levels of DHEAs, DHT, and testosterone between female patients with oral lichen planus and healthy controls, suggesting no neuroendocrine etiology linked to the condition.

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

In this case study, a woman with congenital adrenal hyperplasia experienced substantial improvement in musculoskeletal and neurobehavioral symptoms after low-dose testosterone therapy, highlighting its potential role in managing chronic glucocorticoid overtreatment effects.

In this animal study, AGO (agomelatine) effectively alleviated testosterone-induced benign prostatic hyperplasia in rats by reducing oxidative stress and inflammation, indicating its potential as a therapeutic option for managing BPH through specific signaling pathways.

In this study, researchers found no significant differences in the serum levels of DHEAs, DHT, and testosterone between female patients with oral lichen planus and healthy controls, suggesting no neuroendocrine etiology is associated with this condition.