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This study suggests that decreased levels of dihydroceramide in hair may serve as a biomarker for the progression of alopecia.

This review examines recent advancements in green and emerging microextraction techniques, such as SPME and DLLME, for more sustainable hormone detection in biological samples, emphasizing environmentally friendly solvents and bioanalytical applications.

This study developed a rapid method using advanced chromatography and mass spectrometry to detect hair-growth enhancing compounds, discovering synthetic drugs in about 21% of tested supplements.

This study identified over 40 phytochemical compounds in the leaves and flowers of Bituminaria bituminosa, predominantly glycosylated flavonoids from apigenin, using advanced chromatographic techniques.

This study found that monitoring endogenous steroid metabolites in serum may improve the detection of testosterone doping by highlighting promising biomarkers.

This study identified a new minoxidil analogue called triaminodil in an illegal hair-growth supplement, but no data on its chemical, toxicological, or pharmacological properties are available yet.

This study developed a stable and reliable HPLC-ESI-MS method for determining finasteride levels in human plasma, suitable for pharmacokinetic studies.

This study reports that hair analysis could potentially monitor metformin use in diabetic patients, suggesting a possible correlation between daily dose and concentration in dark hair but not in light hair.

This study found that the total testosterone/dihydrotestosterone ratio correlates with a negative metabolic profile in both women with PCOS and healthy women.

This study demonstrated that an LC/MS-MS method could effectively detect and quantify the vitamin B3 vitamer nicotinamide in human hair, suggesting its potential use for long-term deficiency examination.

This study found that LC-MS/MS is a more reliable method than immunoassays for measuring serum 17OHP and androgen levels in women with hyperandrogenism.

This paper reviews the diagnostic criteria, etiological factors, and treatment approaches for PCOS, highlighting the importance of considering metabolic issues such as insulin resistance and obesity, but reports no new findings.

This study observed that hair cortisol and cortisone concentrations were higher in older individuals and those with diabetes mellitus, highlighting their potential significance for assessing somatic health.

This study introduced a validated LC-MS/MS-based method for profiling long-term steroid concentrations in human scalp hair, offering potential applications in endocrinology research.

This study found that concentrations of THCCOOH in hair do not correlate well with self-reported cannabis use due to inaccuracies in the self-reported data, but it provides preliminary insights into usage patterns.

This study used micro-segmental hair analysis to identify the day of drug intake and suggested differing uptake mechanisms for co-administered drugs based on their properties.

This study found that the yeast androgen screen (YAS) could detect the activity of methyltestosterone in urine for a longer period than classical GC/MS, potentially identifying long-lasting metabolites.

This study found that untargeted hair metabolomics analysis detected significantly altered endogenous biomolecules, potentially serving as biomarkers for identifying oxidative cosmetic hair treatments like bleaching.

This study found that hair samples from chronic tramadol and cannabis users showed positive drug presence for 3-4 months and 6-7 months, respectively, after discontinuation.

The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.

This study found that after application of a testosterone cream containing 17α-methyltestosterone and testosterone propionate, these compounds could be detected in dried blood spots up to 97 hours post-application, potentially leading to sample contamination during fingertip puncture.

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.

The researchers reported that the novel MBTPS2 variant p.Glu172Asp found in a male proband is likely pathogenic, consistent with osteogenesis imperfecta symptoms and molecular signatures, including disrupted fatty acid metabolism and collagen production.

This study identified 674 differentially expressed proteins in the skin tissues of male and female Chinese merino sheep, suggesting gender-specific molecular mechanisms that may affect wool traits.

This study found that while dutasteride significantly altered pregnane metabolism in mares during late gestation, it did not impact pregnancy outcomes, highlighting the complexity of pregnane metabolism and the necessity of LC-MS/MS for accurate measurement.

In this study, researchers observed a curvilinear relationship between loneliness and hair cortisol concentration among older adults at elevated cardiovascular risk, with cortisol levels higher at low-to-moderate loneliness and lower at higher loneliness, though results were sensitive to some data exclusions.

This study developed and validated a method for measuring stress biomarkers in hair during pregnancy, finding that glucocorticoid levels increased over trimesters while endocannabinoid levels remained constant, suggesting hair analysis as a reliable tool for monitoring stress responses in pregnant women.

This study observed that both finasteride and dutasteride significantly decreased dihydrotestosterone concentrations in hair, with dutasteride showing the greatest reduction.

This study developed a method to quantify hormones in skin secretions and found that hormonal composition varies by sex and anatomical site.

This study established age-adjusted reference intervals for hair cortisol in children from birth to 18 years, finding higher cortisol levels in infants possibly linked to slower hair growth.