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This study developed and validated a method for extracting cortisol from human and animal hair, suggesting its potential as a biomarker for assessing chronic stress exposure.

This study validated a method for measuring cortisol levels in hair, which may serve as a biomarker for chronic stress in both humans and various animals.

In this study, the synthesis of C-4 and C-6 bridged haptens of 11 alpha-hydroxyprogesterone revealed an unexpected formation of a C-4 substituted product using a 6-bromo derivative, contrary to prior reports.

This review summarizes the use of fecal glucocorticoid metabolite analysis to monitor stress across various bear species and reports no new clinical results.

This study found that stress is likely the main cause of symmetrical alopecia in Formosan macaques, with higher stress hormone levels observed in affected individuals.

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 found that a commonly-used DHT enzyme immunoassay shows significant cross-reactivity with testosterone, leading to inaccurate DHT measurements compared to a gold-standard LC–MS/MS method.

This study measured estradiol and progesterone in the scalp hair of pre- and postmenopausal women using immunoassay, but found no statistical significance in hormone concentration differences between the groups.

This study reported the development of two highly sensitive ELISA assays to detect banned substances finasteride and dutasteride in human urine, offering better sensitivity than existing HPLC/MS/MS methods.

This study developed a sensitive and precise scFv-based ELISA for miroestrol quantification, aiding quality control in P. candollei plant materials and health supplements.

This study found that serum myo-inositol oxygenase levels do not differ between women with polycystic ovary syndrome and healthy controls, suggesting that MI deficiency in PCOS is not due to MIOX levels.

This study found that hair testosterone concentrations show some consistency over time, but factors like hair washing and individual growth rates influence these levels, suggesting the need for careful sampling and analysis adjustments.

This report details a case of feline degenerative mucinotic mural folliculitis associated with feline immunodeficiency virus, identified using immunohistochemistry and immunoassay techniques.

In this study, T3 and T4 were found to directly influence human hair follicles in vitro, enhancing keratinocyte proliferation, prolonging the hair growth phase, and affecting pigmentation.

This review discusses the importance of androgen production and metabolism in hyperandrogenism, the use of specific serum markers for diagnosis, and the need for improved assays for clinical testing, but reports no new results.

This study found that angiogenin is expressed in human dermal papilla cells, where it might stimulate hair growth by promoting cell proliferation and local skin angiogenesis.

This study used a newly validated method to find that one-year finasteride treatment resulted in no significant differences in urinary androgen and prostaglandin levels between male pattern baldness patients and normal controls.

This study found that conditioned media from epidermal progenitor cells improved skin aging signs in a clinical trial and protected fibroblasts from oxidative stress in vitro.

This study found that storing hair follicle micrografts in HEPES-buffered DMEM with ACD inhibitors like aminoguanidine significantly increased hair shaft elongation compared to phosphate-buffered salt solution, suggesting improved viability for transplantation.

In this study on rats, valproic acid was associated with reduced biotinidase enzyme activity and higher alopecia rates, but biotin supplementation did not significantly affect alopecia occurrence.

This review discusses diagnostic criteria for polycystic ovary syndrome and highlights the challenges and risks of misdiagnosing women with other hyperandrogenism causes; it reports no clinical results.

This review discusses the challenges in measuring testosterone for assessing androgen excess in women and emphasizes the importance of quality control in laboratory methods, but it reports no new clinical results.

This study determined that the upper normal cut-off levels for free testosterone, dehydroepiandrosterone sulfate, and total testosterone among reproductive-age women in China are 26 pmol/L, 4.92 μmol/L, and 2.39 nmol/L, respectively.

The authors concluded that administering biotin may help prevent alopecia caused by reduced biotinidase activity during valproic acid therapy in rats.

This study found that LC-MS/MS assays provided more reliable and precise steroid measurements in human serum compared to traditional immunoassays, particularly at lower concentrations.

In this retrospective study, cyproterone acetate treatment in late-pubertal trans-girls was found to be generally safe and led to mild feminizing effects, with more rapid feminization occurring when combined with estrogens.

This case report describes a girl with Denys-Drash syndrome misdiagnosed with hyperandrogenism due to biotin interference in immunoassays, highlighting the need for awareness of laboratory result discrepancies.

This study suggests that combining finasteride with traditional herbal formulas Yongdamsagan-tang or Paljung-san may not interfere with drug metabolism while potentially enhancing anti-inflammatory effects for treating benign prostatic hyperplasia.

This study found that women with PCOS had significantly higher angiotensin converting enzyme activity and insulin resistance compared to controls, suggesting a correlation between these factors.

This study found that overexpression of sPLA2-X in mice was associated with alopecia and hair follicle abnormalities, highlighting its potential role in hair follicle homeostasis.