research Hair Testing in Forensic Toxicology: Recent Insights From Root to Tip
Hair testing is a useful method for detecting past substance use and recent advancements improve its accuracy and reliability.
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450-480 / 1000+ resultsresearch Determination of 19 Steroid Hormones in Human Serum and Urine Using Liquid Chromatography-Tandem Mass Spectrometry
The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.
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 Hair
Hair can reveal toxic elements and drugs in the body.
research Electron microscopy-image analysis: Quantification of ultrastructural changes in hair fiber cross sections as a
research Human hair follicle transcriptome profiling: a minimally invasive tool to assess molecular adaptations upon low‐volume, high‐intensity interval training
Hair follicle analysis can track body changes from high-intensity interval training.
research Ferreting out stem cells from their niches
New methods have greatly improved our understanding of stem cell behavior and roles in the body.
research Testosterone alters iron metabolism and stimulates red blood cell production independently of dihydrotestosterone
Testosterone boosts red blood cell production and changes iron metabolism without needing dihydrotestosterone.
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 Hair
Hair analysis can detect drug use but is costly and interpretation is complex.
research Presence of iron in segmented heterochromia of the scalp hair without iron-deficiency anaemia
Iron can be present in hair color changes without overall iron deficiency.
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 Steroidomics for highlighting novel serum biomarkers of testosterone doping
Monitoring steroid hormones in blood can better detect testosterone doping.
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 The distribution of Langerhans cells within the human hair follicle, and some observations on its staining properties with gold chloride.
research Flow cytometric analysis of cell cycle kinetics of anagen scalp hair correlated with plasma androgens in hirsutism.
Higher DHEA-S levels in hirsute females affect hair growth phases.
research Quantitative analysis of 34 sex (pro)hormones, conjugates and bioactive oxidation products thereof in human plasma by GC- and LC-MS/MS and systematic investigation of overestimations of analyte concentrations not accounted for by method validation
The method accurately measures sex hormones in human plasma but can have small errors.
research Enzymological studies on processes in cellular differentiation and transformation: the use of the human hair follicle as an easily available human biopsy tissue
Hair follicles are useful for studying human cell changes.
research 1328 HIF1A stabilisation in the human hair follicle promotes glycolysis
Stabilizing HIF1A in hair follicles increases glycolysis, which may help reduce oxidative stress and support hair growth.
research Development of Suspended Droplet Microextraction Method for Spectrophotometric Determination of Serum Iron
A new method accurately measures iron in small samples with high sensitivity and low cost.
research Sulphation catalysed by the human cytosolic sulphotransferases - chemical defence or molecular terrorism?
Human enzymes can detoxify harmful substances but might also increase their cancer risk.
research DAB-labelling for collagen type III and PDGFR as control on equine skin sections.
DAB labeling effectively identifies collagen type III and PDGFR in horse skin, but may show false positives.
research [Anejaculation caused by haemosiderosis: male infertility in hereditary haemochromatosis].
Early diagnosis and treatment of haemochromatosis are crucial for reversing organ damage and improving fertility.
research A stain for plucked anagen hairs
A new staining method helps tell growing from resting hairs to diagnose hair loss.
research 576 A preliminary study of melanogenic markers in the differentiation of the human hair follicle melanin unit
The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
research Serial Hydrolysis for the Simultaneous Analysis of Catecholamines and Steroids in the Urine of Patients with Alopecia Areata
A new method was created to analyze certain chemicals in the urine of alopecia areata patients, revealing they have higher metanephrine content. This method can also be used for other related diseases.
research Intravital longitudinal wide-area imaging of dynamic bone marrow engraftment and multilineage differentiation through nuclear-cytoplasmic labeling
Transplanted bone marrow cells actively move, form clusters, and grow after transplantation.
research Autofluorescence in the Stem Cell Region of the Hair Follicle Bulge
Autofluorescence in hair follicle stem cells can interfere with studies but may help isolate these cells.
research Novel insights into hair structure and the effects of chemical stressors on hair and skin using label-free advanced light microscopy
Chemical stressors damage hair structure but the skin's outer layer protects living cells.
research Laboratory and Experimental Trichology
The document concludes that the trichogram is a useful tool for diagnosing hair loss and suggests semi-organ cultures for practical trichological research.