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.
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research Imaging prostate cancer (PCa) with [99m Tc(CO)3 ]finasteride dithiocarbamate
A new compound was effective for imaging prostate cancer in rats.
research Structural characterization of cyclosporin A, C and microbial bio-transformed cyclosporin A analog AM6 using HPLC–ESI–ion trap-mass spectrometry
Researchers developed a method to identify and analyze cyclosporin compounds and their structures effectively.
research Stereocontrolled synthesis of all eight stereoisomers of the putative anti-androgen cyoctol
Scientists made all eight versions of a compound called cyoctol, but found it's not an anti-androgen and it fully breaks down in the skin.
research GC-MS determination of steroids related to androgen biosynthesis in human hair with pentafluorophenyldimethylsilyl–trimethylsilyl derivatisation
The method accurately measures certain steroids in human hair, showing different levels in males and females.
![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 Preliminary pharmacokinetics and metabolism of novel non-steroidal antiandrogens in the rat: Relation of their systemic activity to the formation of a common metabolite
Two non-steroidal antiandrogens, RU 58841 and RU 56187, form a common metabolite at different rates, which may influence their effects; RU 56187 could be used for prostate cancer treatment and RU 58841 for acne treatment.
research Characterization of spironolactone and metabolites derivatized using Girard's reagent P using mass spectrometry and ion mobility spectrometry
Girard's reagent P improves detection of spironolactone and its metabolites.
research In Vitroandin VivoStructure-Activity Relationships of Novel Androgen Receptor Ligands with Multiple Substituents in the B-Ring
Certain changes to the B-ring of androgen receptor ligands can increase their effectiveness for potential treatments of muscle and bone conditions.
research Rational Design and Synthesis of 4-((1R,2R)-2-Hydroxycyclohexyl)-2(trifluoromethyl)benzonitrile (PF-998425), a Novel, Nonsteroidal Androgen Receptor Antagonist Devoid of Phototoxicity for Dermatological Indications
PF-998425 is a new, effective, and non-phototoxic treatment for skin conditions related to androgens.
research Synthesis, antiproliferative, acute toxicity and assessment of antiandrogenic activities of some newly synthesized steroidal lactams
research Synthesis of mimics of steroid A ring as potential enzyme inhibitors
Mimicking the steroid A-ring may help create effective enzyme inhibitors for prostate disease treatment.
research DEVELOPMENT AND VALIDATION OF A RP - HPLC METHOD FOR THE SIMULTANEOUS DETERMINATION OF SPIRONOLACTONE AND HYDROCHLOROTHIAZIDE IN PURE AND PHARMACEUTICAL DOSAGE FORM
A new accurate and reliable method was developed to measure Spironolactone and Hydrochlorothiazide together in medicines.
research The Androgen Receptor and Its Use in Biological Assays: Looking Toward Effect-Based Testing and Its Applications
Scientists have developed a new method to detect steroid abuse in athletes using cell-based tests, which could be the future of anti-doping methods.
research Solid-Phase Microextraction and Related Techniques in Bioanalysis
research Chromatographic Methods for the Determination of Aminexil, Pyridoxine, and Niacinamide in a Novel Cosmetic Hair Preparation
Two new methods accurately measure Aminexil, Pyridoxine, and Niacinamide in hair products.
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 RP-HPLC-Based Stability-Indicating Analytical Method for Concurrent Determination of Finasteride and Tadalafil: Development and Validation
A reliable method was developed to measure Finasteride and Tadalafil together, showing they degrade under certain conditions.
research N-Acyl arylsulfonamides as novel, reversible inhibitors of human steroid sulfatase
Scientists found new, better-working inhibitors for a hormone-related enzyme.
research Determination of steroid hormones in human hair as a retrospective biomarker with HPLC-MS/MS
A new method accurately measures long-term hormone levels in hair.
research Crystallization and preliminary X-ray analysis of the human androgen receptor ligand-binding domain with a coactivator-like peptide and selective androgen receptor modulators
Scientists successfully created and analyzed the structure of a part of the human androgen receptor with specific modulators and a peptide to understand how it binds differently in various tissues.
research Determination Method for Steroid 5α-Reductase Activity Using Liquid Chromatography/Atmospheric Pressure Chemical Ionization–Mass Spectrometry
A new method was developed to measure and assess the activity and inhibition of the enzyme steroid 5α-reductase.
research Determination of 13 janus kinase inhibitors in anti-alopecia cosmetics by ultra-high performance liquid chromatography-tandem triple quadrupole composite linear ion trap mass spectrometry
A new method accurately detects illegal JAK inhibitors in hair loss cosmetics.
research Design, synthesis and biological evaluation of novel 3-oxo-4-oxa-5α-androst-17β-amide derivatives as dual 5α-reductase inhibitors and androgen receptor antagonists
New compounds were made that are promising for prostate cancer therapy.
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 Development of Fast Reverse Phase Liquid Chromatographic Method for Simultaneous Analysis of Betamethasone Dipropionate and Calcipotriol in Ointments and Bulk Drug
Researchers developed a quick and reliable method to test for betamethasone dipropionate and calcipotriol in ointments and drugs.
research Indirect clinical markers for the detection of anabolic steroid abuse beyond the conventional doping control in athletes
New signs like changes in blood markers, physical symptoms, and behavioral shifts may help detect hidden steroid use in athletes.
research Screening of synthetic and natural product databases: Identification of novel androgens and antiandrogens
Researchers found new potential treatments for conditions related to the androgen receptor, like male hormonal contraception, by testing thousands of compounds.
research SUN-195 Falsely Elevated Testosterone Levels: Role of LC-MS/MS in Reducing Unnecessary Testing
Using LC-MS/MS for hormone measurement can prevent false high testosterone results and avoid unnecessary tests.
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.