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.
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research Simultaneous Determination of Multi-Class Active Pharmaceutical Ingredients by UHPLC-HRMS
A new method was developed to accurately detect and measure 47 different drug ingredients in various products.
research Caffeine in Hair Care and Anticellulite Cosmetics: Sample Preparation, Solid-Phase Extraction, and HPLC Determination
The caffeine content in anticellulite gels is 0.7-1.7% and in hair-care products is about 1.0%.
research Neurosteroids Are Endogenous Neuroprotectants in an Ex Vivo Glaucoma Model
A natural steroid in the body may protect against eye damage in glaucoma.
research Human Hair as a Testing Substrate in the Era of Precision Medicine: Potential Role of Omics-Based Approaches
Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
research Application of Different Analytical Techniques and Microbiological Assays for the Analysis of Macrolide Antibiotics from Pharmaceutical Dosage Forms and Biological Matrices
Future work on macrolide antibiotic analysis will aim to enhance selectivity, sensitivity, and efficiency using advanced chromatographic methods.
research The Human Gut Chemical Landscape Predicts Microbe-Mediated Biotransformation of Foods and Drugs
The study developed a tool to predict how gut microbes process foods and drugs, showing that similar compounds often share metabolic pathways and effects.
research Neurosteroids in Adult Hippocampus of Male and Female Rodents: Biosynthesis and Actions of Sex Steroids
Sex steroids produced in the hippocampus are crucial for brain functions like memory and learning in rodents.
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 Human Pollution Exposure Correlates With Accelerated Ultrastructural Degradation of Hair Fibers
Pollution exposure speeds up hair damage.
research 5α-Reductase Inhibitors: Evaluation of Their Potential Confounding Effect on GC-C-IRMS Doping Analysis
5α-reductase inhibitors can interfere with doping tests by masking banned substances.
research Congenital Adrenal Hyperplasia: A Detailed Review of 21-Hydroxylase Deficiency
CAH is a genetic disorder affecting cortisol production and causing hormonal imbalances, with treatment and diagnosis varying by form and symptoms.
research Abstracts from the ASA 40th Annual Meeting
HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.
research Non-Invasive Biomonitoring of Infant Exposure to Environmental Organic Pollutants in North-Western Spain Based on Hair Analysis: Identification of Potential Sources
Hair analysis shows infants and mothers in north-western Spain are exposed to environmental pollutants, with factors like diet and residence affecting pollutant levels.
research Finasteride Quantification in Human Plasma by High-Performance Liquid Chromatography Coupled to Electrospray Ionization Tandem Mass Spectrometry: Application to a Comparative Pharmacokinetics Study
New method measures finasteride in plasma, finds two formulations bioequivalent.
research Ultra-Performance Liquid Chromatography with Electrospray Ionization Tandem Mass Spectrometry for the Determination of Ketoconazole in Anti-Dandruff Shampoo
The method accurately measures the amount of ketoconazole in anti-dandruff shampoo and cream, and can also be used to monitor the drug in human plasma.
research Determination of Finasteride in Human Plasma by Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry with Flow Rate Gradient
Researchers developed a quick and sensitive way to measure finasteride in blood using a small sample size.
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 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.
![Synthesis of 5,6,6-[2H3]Finasteride and Quantitative Determination of Finasteride in Human Plasma at Picogram Level by an Isotope-Dilution Mass Spectrometric Method](/images/research/0026b639-99a8-455a-a986-c39aa65abfa9/small/2087.jpg)
research Synthesis of 5,6,6-[2H3]Finasteride and Quantitative Determination of Finasteride in Human Plasma at Picogram Level by an Isotope-Dilution Mass Spectrometric Method
Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.
research The Polycystic Ovary Syndrome: A Position Statement from the European Society of Endocrinology
The European Society of Endocrinology advises individualized long-term management for PCOS, focusing on lifestyle changes, accurate diagnosis, and treatments for associated health risks and symptoms.
research Determination of Vitamin B3 Vitamer (Nicotinamide) and Vitamin B6 Vitamers in Human Hair Using LC-MS/MS
The method can measure vitamin B3 levels in human hair accurately.
research Comparative Studies on Polyamine Levels in Plasma and Urine of Androgenic Alopecia Patients Treated with Finasteride for a Period of Three Years
Finasteride treatment for three years changes certain polyamine levels in the blood but not in urine.
research Diagnosis and Treatment of Methylmalonic Acidemia in 14 Cases
Early diagnosis and proper treatment improve outcomes for methylmalonic acidemia.
research Simultaneous Quantitative Analysis of Tamsulosin and Finasteride in Pharmaceutical Dosage Form by U-HPLC Tandem Mass Spectrometry
Method measures tamsulosin and finasteride in medicine accurately.
research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
research Analytical Chemistry Studying Historical Pharmaceuticals and Health Care Formulations
Analytical chemistry helps understand the makeup and use of ancient medicines, but it's complex and challenging.
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 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 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.