research Simultaneous Determination of 30 Hormones Illegally Added to Anti-Aging Functional Foods Using UPLC-MS/MS Coupled with SPE Clean-Up
New method effectively detects illegal hormones in anti-aging foods.
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research A Rapid, Simple, Specific Liquid Chromatographic–Electrospray Mass Spectrometry Method for the Determination of Finasteride in Human Plasma and Its Application to Pharmacokinetic Study
Method measures finasteride in plasma, suitable for pharmacokinetic studies.
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 Long-Term Detection of Methyltestosterone Use by a Yeast Transactivation System
A yeast-based test can detect the steroid methyltestosterone in urine longer than traditional methods.
research Androgen Profiling by Liquid Chromatography–Tandem Mass Spectrometry in Healthy Normal-Weight Ovulatory and Anovulatory Late Adolescent and Young Women
The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.
research Ex-Vivo Measurement of Scalp Follicular Infundibulum Delivery of Zinc Pyrithione and Climbazole from an Anti-Dandruff Shampoo
The method shows that zinc pyrithione and climbazole from anti-dandruff shampoo effectively reach the scalp.
research Identification of Finasteride Metabolites in Human Bile and Urine by High-Performance Liquid Chromatography/Tandem Mass Spectrometry
Finasteride breakdown products found in bile and urine, helps understand drug safety and effectiveness.
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 Profiling Steroid and Thyroid Hormones with Hair Analysis in a Cohort of Women Aged 25 to 45 Years Old
The method can measure multiple hormones in women's hair and may help identify hormone-related health issues.
research Management of Endocrine Disease: Hyperandrogenic States in Women - Pitfalls in Laboratory Diagnosis
Diagnosing hyperandrogenism in women is complex and requires accurate testing methods and consideration of SHBG levels.
research High-Throughput and Direct Measurement of Androgen Levels Using Turbulent Flow Chromatography Liquid Chromatography-Triple Quadrupole Mass Spectrometry 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 Insights From Liquid Chromatography-Mass Spectrometry-Measured Androgens in Indian Women With Polycystic Ovary Syndrome
Androstenedione is better than testosterone for diagnosing PCOS in Indian women.
research A New Label-Free Screen for Steroid 5α-Reductase Inhibitors Using LC-MS
Researchers developed a new method to find substances in herbs that can block a specific enzyme linked to hair loss.
research Androgen Profile Through Life in Women With Polycystic Ovary Syndrome: A Nordic Multicenter Collaboration Study
Women with PCOS have higher androgen levels that decrease with age but are still higher than in women without PCOS.
research Sex Hormones and Hair Loss in Men From the General Population of Northeastern Germany
Men's hair loss is not linked to their sex hormone levels, except for lower DHEAS in those with hair loss.
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.
research LC/MS Analysis of Stratum Corneum Lipids: Ceramide Profiling and Discovery
A new, quick method was developed to analyze skin lipids, discovering a new ceramide subclass.
research Cheating on Forensic Hair Testing? Detection of Potential Biomarkers for Cosmetically Altered Hair Samples Using Untargeted Hair Metabolomics
Researchers found markers that can tell if hair has been bleached, which could improve hair test accuracy.
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 A Quantitative Ultra-Performance Liquid Chromatography High-Resolution Mass Spectrometry Analysis of Steroids from Human Scalp Hair
The method can measure multiple steroids in human hair to study long-term steroid metabolism, especially in newborns and children.
research Development of a Liquid Chromatography/Mass Spectrometry-Based Inhibition Assay for Screening Steroid 5-Alpha Reductase in Human and Fish Cell Lines
A new method was created to test the effectiveness of Dihydrotestosterone (DHT) inhibitors, like finasteride and dutasteride, in human and fish cells. The results showed fish cells are more sensitive to these treatments, and dutasteride works better than finasteride in all tested cells.
research A Non-Invasive Hair Test to Determine Vitamin D3 Levels
The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.
research Quantification of Biotin in Plasma Samples by Column Switching Liquid Chromatography – Tandem Mass Spectrometry
The document describes a way to measure biotin in blood to prevent wrong test results in hormone level testing.
research Simultaneous Determination of Seven Prohibited Substances in Cosmetic Products by Liquid Chromatography–Tandem Mass Spectrometry
The method effectively identifies and measures seven banned substances in cosmetics.
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 Human Scalp Hair Follicles Express Prostaglandin E2 Lipid Mediator and Receptors for PGE2
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
research Determination of Cantharidin, Nitrogen Mustard, and Minoxidil in Nurturing Hair Products by Liquid Chromatography-Tandem Mass Spectrometry
research Antifungal Activity and Hair Growth Stimulation of Purple Sweet Potato Leaf Fraction (Ipomoea Batatas) and Its Molecular Mechanism Through Androgen Receptor Inhibition
Purple sweet potato leaf extracts can help treat hair loss and fungal infections.
research Untargeted Scanning of Hair for Drugs of Abuse by Direct Analysis in Real Time–High-Resolution Mass Spectrometry
A new method can quickly and accurately detect drugs in hair.
research Transcriptome Sequencing and Mass Spectrometry Reveal Genes Involved in Non-Mendelian Inheritance-Mediated Feather Growth Rate in Chickens
The research found specific genes and proteins that affect how fast chickens' feathers grow, which is not solely determined by traditional inheritance patterns.