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This study found that steroid reproductive hormones such as estradiol and testosterone can be preserved and analyzed in archaeological human hair, providing new insights into ancient health and fertility.

This study found that steroid hormone levels in human hair correlate significantly with those in serum, suggesting hair may be a viable medium for assessing hormonal status.

This study suggests that measuring hair DHEA and testosterone can reliably reflect long-term average hormone levels in women, overcoming daily and menstrual fluctuations seen in salivary hormone assessments.

This research developed new in vitro models for high-throughput screening of drugs that could protect or restore immune privilege in hair follicles, finding that Tofacitinib was effective in preventing inflammation-related marker upregulation, while Tacrolimus and αMSH worked specifically in outer root sheath keratinocytes.

This study indicated a correlation between female pattern hair loss and decreased serum levels of Vitamin D3, suggesting that Vitamin D3 evaluation may be important in managing this condition.

This study found that in estrogen receptor-positive breast cancer cells, 17β-estradiol repressed polyamine oxidase transcription by interacting with AP-1 sites on its promoter.

This study found that the prevalence of polycystic ovarian syndrome among women of reproductive age in urban and rural areas of Hyderabad, Telangana, is between 6.5% and 6.8%.

This article reviews methods to enhance epithelial–mesenchymal interactions for hair follicle bioengineering but does not present new experimental results; it emphasizes optimizing combinations for successful regeneration.

This review discusses how neuroendocrine pathways influence keratin regulation in human skin and hair follicles and suggests these pathways as potential targets for new treatments of skin disorders, but reports no clinical results.

This study analyzed screening data from 218 alopecia areata patients before starting Janus kinase inhibitors, revealing the importance of pre-treatment screening due to risks of infections like tuberculosis and hepatitis B, with 74.8% of patients proceeding to treatment in real-world settings.

This review discusses recent research on how sex hormones influence COVID-19 progression by affecting viral receptors, immune responses, and disease complications, and explores potential therapeutic uses based on clinical and assay studies.

This study developed a validated gas chromatography–tandem mass spectrometry assay to assess sex steroid hormones in cerebrospinal fluid, finding substantial levels of DHEA, androstenedione, and testosterone, with strong correlations to serum levels, providing insight into sex steroid dynamics in the human CNS.

This study found that hair products commonly used by Black women exhibited hormonal activity, which could impact health outcomes and contribute to health disparities.

In this study, androgen receptors were found only in the mane follicles of red deer stags during the breeding season, suggesting their expression is induced by seasonal hormone changes.

This study found that measuring reproductive hormone levels in brown bear hair may effectively support non-invasive genetic sampling, though larger samples or more sensitive techniques are needed for broader application.

This study developed a new method using liquid chromatography-tandem mass spectrometry to measure multiple steroid hormones in hair, requiring significantly fewer strands than previous methods, with high accuracy and precision.

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.

This chapter reviews the causes and underlying steroid pathways of hirsutism and virilization in women, detailing relevant conditions and laboratory assays without reporting new clinical results.

This study presents a new LC-MS/MS method that allows for more accurate detection of seven steroid hormones in human hair, enhancing the specificity and reliability of hormone analysis in psychoneuroendocrinological research.

This review discusses the impact of hormones on female sexual function and dysfunction, highlighting the complexity and gaps in basic research, and reports no new clinical findings.

In this case study, biotin supplementation was reported to interfere with free testosterone assay results, leading to falsely low readings in a postmenopausal woman with hyperandrogenism.

This study found that while prolactin and DHEA-S levels were higher in women with hirsutism compared to controls, there was no significant correlation between second to fourth digit ratio and hormonal profiles.

This study found that the methanolic heartwood extract of Avicennia marina significantly inhibits 5α-reductase type 1, reducing 5α-DHT production by 52% in a cell-based assay with human hair dermal papilla cells.

This study found that Avicennia marina extract significantly inhibited 5α-reductase type 1 activity in human hair dermal papilla cells, suggesting its potential use for treating androgenic alopecia.

This study concluded that mixtures of weak endocrine disruptors, such as parabens and azole fungicides, can produce combination effects that should be considered in regulatory risk assessments to avoid underestimating potential risks.

This article reviews emerging opportunities and challenges in male reproductive medicine, including advancements and unmet needs in erectile dysfunction, androgen deficiency, and fertility, but reports no new clinical findings.

This study reported that pulverizing hair samples significantly improves the precision of testosterone measurement, with higher testosterone concentrations observed in men than in women.

This study presents a method using liquid chromatography tandem mass spectrometry to quantify biotin in plasma and serum, and explores how high biotin intake can interfere with diagnostic immunoassays that utilize biotin-streptavidin technology, potentially leading to misdiagnosis of endocrine disorders.

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, researchers observed that fasting-induced molting in laying hens led to increased thyroid hormones, which may regulate feather molting by affecting hair follicle growth through specific signaling pathways, highlighting molecular changes during induced molting.