research ANALÝZA KORTIZOLU VO VLASOCH – BIOMARKER AKTIVÁCIE HPA OSI
Hair cortisol levels can effectively indicate long-term hormone activity.
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research Analysis of hormone antagonists in clinical and municipal wastewater by isotopic dilution liquid chromatography tandem mass spectrometry
Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.
research Simultaneous determination of 30 hormones illegally added to anti-ageing functional foods using UPLC-MS/MS coupled with SPE clean-up
New method effectively detects illegal hormones in anti-aging foods.
research The impact of COVID-19 pandemic and lockdown on chronic stress assessed by hair cortisol analysis via LC-MS/MS
Chronic stress increased after lockdown, especially in young adults and females.
research Design and Validation of a Sensitive Multisteroid LC-MS/MS Assay for the Routine Clinical Use: One-Step Sample Preparation with Phospholipid Removal and Comparison to Immunoassays
The new LC-MS/MS method is more accurate and reliable than traditional immunoassays for measuring steroids in serum.
research Simultaneous LC-MS/MS quantification of glucocorticoids, melatonin and its metabolites in hair
The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.
research Optimization of LC method for the determination of testosterone and epitestosterone in urine samples in view of biomedical studies and anti-doping research studies
Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.
research LC-APCI+-MS/MS method for the analysis of ten hormones and two endocannabinoids in plasma and hair from the mice with different gut microbiota
The method accurately measures hormones and endocannabinoids in mice, showing gut microbiota diversity affects these levels and may influence stress and reproductive systems.
research O15: Determination of EtG in body hair samples for monitoring of teetotalism: A suitable alternative to scalp hair locks?
Body hair can be used to test for alcohol intake, especially in men.
research Congenital Adrenal Hyperplasia—Current Insights in Pathophysiology, Diagnostics, and Management
Early diagnosis and individualized treatment improve outcomes for Congenital Adrenal Hyperplasia.
research Revisiting hyper- and hypo-androgenism by tandem mass spectrometry
The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
research Comparative Proteomic Analysis in Scar-Free Skin Regeneration in Acomys cahirinus and Scarring Mus musculus
The African spiny mouse heals skin without scarring due to different protein activity compared to the common house mouse, which heals with scarring.
research Measurement of steroid hormones by liquid chromatography-tandem mass spectrometry with small amounts of hair
A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
research Separation of finasteride and analogues
Finasteride and analogues separated using LC-MS-MS technique.
research A Comprehensive Approach in Diagnosing the Polycystic Ovary Syndrome
The document concludes that diagnosing PCOS requires a thorough approach, considering various symptoms and risks, and calls for improved methods to identify PCOS types and prevent diabetes.
research Measurement of Steroid Hormones in Hair: an Analysis of Hormone Dynamics in Hair Follicles
The method accurately measures steroid hormones in hair to study hormone dynamics related to hair loss.
research Determination of some sex hormones in health supplements by liquid chromatography with tandem mass spectrometry
The method detected sex hormones in some health supplements, with one containing banned testosterone.
research Liquid Chromatography-Mass Spectrometry-Based In Vitro Metabolic Profiling Reveals Altered Enzyme Expressions in Eicosanoid Metabolism
The method reliably profiles eicosanoids and shows epitestosterone reduces their levels, similar to common anti-inflammatory drugs.
research Study on dissolution mechanism of cortisol and cortisone from hair matrix with liquid chromatography–tandem mass spectrometry
Cortisol and cortisone release from hair increases in steps over time during incubation.
research The profile of steroid hormones in human fetal and adult ovaries
Fetal ovaries produce different hormones than adult ovaries, and endocrine-disrupting chemicals may affect this process.
research Determination of 19 Steroid Hormones in Human Serum and Urine Using Liquid Chromatography-Tandem Mass Spectrometry
The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.
research Establishing and Verifying a Robust Liquid Chromatography-Tandem Mass Spectrometry Method to Simultaneously Measure Seven Androgens Present in Plasma Samples
The method accurately measures seven androgens in plasma and shows different hormone levels in females with acne and obesity.
research Measuring steroids in hair opens up possibilities to identify congenital adrenal hyperplasia in developing countries
Hair steroid measurement is an effective method to diagnose and monitor CAH in developing countries.
research Matrix effects and application of matrix effect factor
Matrix effects in LC-MS can be managed but not completely avoided.
research High resolution full scan liquid chromatography mass spectrometry comprehensive screening in sports antidoping urine analysis
The method effectively detects banned substances in urine for sports antidoping.
research Expression and tissue distribution analysis of vimentin and transthyretin proteins associated with coat colors in sheep (Ovis aries)
Vimentin and transthyretin proteins are linked to black coat color in sheep.
research Simultaneous quantitation of nine hydroxy-androgens and their conjugates in human serum by stable isotope dilution liquid chromatography electrospray ionization tandem mass spectrometry
A new method accurately measures nine specific hormones in human blood.
research Selective and rapid determination of tadalafil and finasteride using solid phase extraction by high performance liquid chromatography and tandem mass spectrometry
Quick, selective detection of tadalafil and finasteride in human plasma developed.
research Improved forensic hair evidence for drugs of abuse by mass spectrometry
Forensic hair analysis for drugs is now more reliable and accurate.
research Metabolic study of androsta-1,4,6-triene-3,17-dione in horses using liquid chromatography/high resolution mass spectrometry
The study found that urine metabolites M1b or M4 are the best indicators of ATD use in horses, with detection possible up to 77 hours in urine and 28 hours in blood.