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.
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330-360 / 1000+ results research Metabolomic analysis of amino acids and lipids in human hair altered by dyeing, perming and bleaching
Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
research A chemist's view of the analysis of human hair for trace elements
Analyzing trace elements in human hair is complex and needs a standardized method.
research Hair-Based Assessment of Sex Steroid Hormones in Patients with Anorexia Nervosa
Hair analysis shows low progesterone in anorexia patients, unchanged by short-term weight gain.
research Matrix Effect in Quantitative LC/MS/MS Analyses of Biological Fluids: A Method for Determination of Finasteride in Human Plasma at Picogram Per Milliliter Concentrations
Method detects finasteride in plasma at very low concentrations.
research The determination of endogenous steroids in hair and fur: A systematic review of methodologies
research Proton Affinitive Derivatization for Highly Sensitive Determination of Testosterone and Dihydrotestosterone in Saliva Samples by LC-ESI-MS/MS
Using 5-butylpicolinate esters improves the sensitivity and reliability of detecting testosterone and dihydrotestosterone in saliva.
research Screen steroid 5 alpha-reductase inhibitors in vitro by high performance liquid chromatography
The method is quick and effective for testing steroid 5 alpha-reductase inhibitors.
research Recent Progress and Morphological Distribution of Polydopamine-Based Biomaterials and Their Applications
Polydopamine is promising for personalized medicine and biomedical technology due to its strong adhesion and biocompatibility.
research Rapid high-performance liquid chromatogaphic method for detection of interindividual differences in carcinogen metabolism
Human hair follicles can assess carcinogen metabolism and imidazole compounds might be effective anticarcinogens.
research The diagnosis of nonclassic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, based on serum basal or post-ACTH stimulation 17-hydroxyprogesterone, can lead to false-positive diagnosis
Using 17-hydroxyprogesterone levels to diagnose nonclassic congenital adrenal hyperplasia can result in many incorrect diagnoses.
research Morphologische und biochemische untersuchungen am Haar bei gestörtem Aminosäurestoffwechsel
Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.
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 Highly Sensitive Simultaneous Measurement of Steroid Hormone in Human Serum by Liquid Chromatography-electrospray Ionization Tandem Mass Spectrometry
A new method accurately measures nine steroid hormones in human serum with high sensitivity.
research Innovative Method for the Analysis of Dexpanthenol in Hair Care Products
New method quickly and accurately measures dexpanthenol in hair products.
research Two-dimensional electrophoretic analysis of human hair keratins, especially hair matrix proteins
The method effectively analyzes human hair proteins, especially nonfilamentous ones.
research Electrophoretic variation of hair proteins.
Most people have similar hair protein patterns, but a rare variant was found in two women.
research Minoxidil and finasteride determination by innovative high-performance liquid chromatography-ultraviolet approach for stability-indicating analysis
A new method accurately measures minoxidil and finasteride in medicines.
research Characterization of Soluble Protein Extracts from Keratinized Tissues: identification of Ubiquitin Universally Distributed in Hair, Nail, and Stratum Corneum
Ubiquitin, a protein, is found in hair, nails, and skin.
research The proteomics of wool follicles
Proteomics helps understand protein changes in wool fiber development.
research Serum Metabolomics Study of Polycystic Ovary Syndrome Based on Liquid Chromatography–Mass Spectrometry
Women with PCOS have different levels of certain fats and proteins in their blood, which could help diagnose the condition.
research High-performance liquid chromatographic determination of finasteride in human plasma using direct injection with column switching
New method detects finasteride in plasma quickly and accurately without clean-up.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of dehydroepiandrosterone sulfate in human serum and plasma
A new method accurately measures DHEAS in blood, improving on current tests.
research Determination of finasteride and its metabolite in urine by dispersive liquid–liquid microextraction combined with field-enhanced sample stacking and sweeping
New method accurately measures finasteride and M3 in urine, helping evaluate pharmacokinetics.
research Determination of finasteride, indapamide and tiemonium methyl sulphate using surface plasmon resonance band of silver nanoparticles
research Protein Microarrays
Protein microarrays are highly sensitive tools useful for disease diagnosis and studying proteins.
research Assessing protein sequencing in human single hair shafts of decreasing lengths
Hair keratin proteins can be reliably identified in hair as short as 0.12 cm, with 0.5 to 2 cm being the best length for analysis.
research Three-Dimensional Proteome-Wide Scale Screening for the 5-Alpha Reductase Inhibitor Finasteride: Identification of a Novel Off-Target
Finasteride may affect PNMT, causing side effects.
research Peer Review #1 of "Potential use of human hair shaft keratin peptide signatures to distinguish gender and ethnicity (v0.1)"
Keratin peptides in hair may help identify gender and ethnicity, but more research is needed.
research Steroidomics for highlighting novel serum biomarkers of testosterone doping
Monitoring steroid hormones in blood can better detect testosterone doping.