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.
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960-990 / 1000+ results research Simultaneous Determination of Selected Steroids with Neuroactive Effects in Human Serum by Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry
A new method accurately measures nine neuroactive steroids in small blood samples, helping to study brain diseases.
research Determination of illegal adulteration of dietary supplements with synthetic hair-growth compounds by UPLC and LC-Q-TOF/MS Part A Chemistry, analysis, control, exposure & risk assessment
Researchers developed a precise method to detect illegal hair-growth drugs in dietary supplements.
research Rapid determination and quantification of hair-growth compounds in adulterated products by ultra HPLC coupled to quadrupole-orbitrap MS
About 21% of tested hair loss supplements contained illegal synthetic drugs.
research Marketing Experimental Stem Cell Therapies in the UK: Biomedical Lifestyle Products and the Promise of Regenerative Medicine in the Digital Era
Unapproved stem cell therapies are marketed online in the UK, raising safety and regulation concerns.
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 Long-term detection of methyltestosterone (ab-) use by a yeast transactivation system
A yeast-based test can detect the steroid methyltestosterone in urine longer than traditional methods.
research Sensitive bromatometric assay methods for finasteride in pharmaceuticals
Three cost-effective methods accurately measure finasteride in pharmaceuticals, better than current techniques.
research Testosterone-stimulated weanlings as an alternative to castrated male rats in the Hershberger anti-androgen assay
Using testosterone-stimulated weanling rats can effectively replace castrated rats for anti-androgen testing, reducing animal stress.
research Determination of adulteration in hair serums by LC-HRMS §
A new method found unlisted drugs in two popular hair serums, posing a health risk.
research Development and validation of rapid and simultaneous method for determination of 12 hair-growth compounds in adulterated products by UHPLC–MS/MS
Researchers created a reliable method to detect hair-growth substances in products.
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 Sustainable UV approaches supported by greenness and whiteness assessments for estimating a recently FDA-approved combination for managing urologic disorders: Tukey's test
New, eco-friendly methods accurately measure TDF and FNS in a new urologic medication.
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 BIO-ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF FINASTERIDE, TADALAFIL, AND ITS APPLICATION TO PHARMACOKINETIC STUDIES IN RAT PLASMA BY USING LC-MS/MS
A reliable method was developed to measure Finasteride and Tadalafil in rat blood.
research Isolation and structural identification of a novel minoxidil analogue in an illegal dietary supplement: triaminodil
A new minoxidil-like substance, triaminodil, was found in an illegal hair growth supplement.
research High-throughput and direct measurement of androgen levels using turbulent flow chromatography liquid chromatography-triple quadrupole mass spectrometry (TFC-LC-TQMS) to discover chemicals that modulate dihydrotestosterone production in human prostate cancer cells
Researchers found four natural compounds that can change DHT levels in prostate cancer cells.
research Saccharomyces cerevisiae BLYAS, a New Bioluminescent Bioreporter for Detection of Androgenic Compounds
The engineered yeast strain BLYAS can quickly and sensitively detect androgenic chemicals.
research Matrix matching in quantitative bioanalysis by LC–MS/MS a dream or a reality?
Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.
research Broad laboratory testing does not show utility for telogen effluvium: a retrospective analysis of 22-million laboratory results using TriNetX
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 Biology and Detection of Pregnanes During Late Gestation in the Mare
LC-MS/MS is essential for accurately detecting pregnanes in pregnant mares.
research Determination of 19 illegally added chemical ingredients in hair loss prevention cosmetics by ultra-performance liquid chromatography-quadrupole-time of flight mass spectrometry
A new method can quickly and accurately detect illegal chemicals in hair loss products.
research Intricate diagnosis due to falsely elevated testosterone levels by immunoassay
Confirm testosterone levels with advanced tests to avoid unnecessary procedures.
research Green and Emerging Microextraction Strategies for Bioanalytical Determination of Hormones: Trends, Challenges, and Applications
Microextraction techniques improve hormone testing while being environmentally friendly.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of 5-alpha-dihydrotestosterone in human serum and plasma
The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
research Apparent Hyperandrogenemia Due to Immunoassay Interference Resolved by Liquid Chromatography–Tandem Mass Spectrometry
False high testosterone levels were corrected using a more accurate test.
research An Innovative Reverse-Phase High-Performance Liquid Chromatography Technique For Measuring Finasteride And Tadalafil In Raw Materials And Pharmaceutical Products With Stability Indication
research A method for simultaneous analysis of androgens, dutasteride and finasteride in human serum by liquid chromatography tandem mass spectrometry
A new method was developed to analyze certain hormones and drugs in human blood efficiently.
research SAT-560 Real or Not Real? An Elevated TSH
Recognizing macro-TSH is crucial to avoid unnecessary treatments.