research Exploring a biological tissue from atomic to macroscopic scale using synchrotron radiation: example of hair.
Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
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570-600 / 1000+ resultsresearch Hair Analysis as an Indicator of Mineral Status of Livestock
Hair analysis is not a precise way to measure livestock's mineral status but can help when used with other methods.
research Development of an improved method to estimate the days of continuous drug ingestion, based on the micro‐segmental hair analysis
Researchers improved a method to more accurately estimate when and how long a drug was taken using hair analysis.
research Peer Review #2 of "Human hair shaft proteomic profiling: individual differences, site specificity and cuticle analysis (v0.1)"
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.
research Daily Circle of Calcium Concentration in Hair Observed by X-ray Fluorescence Analysis
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
research Serum and hair steroid profiles and their associations with body composition in adolescence
Hair steroid profiling is a feasible, non-invasive alternative to serum analysis for assessing hormone levels and metabolism.
research Cyproterone Acetate Quantification in Human Plasma by High-performance Liquid Chromatography Coupled to Atmospheric Pressure Photoionization Tandem Mass Spectrometry
The method accurately measures cyproterone acetate in plasma, showing no significant difference between two formulations.
research Protein extraction from human anagen head hairs 1-millimeter or less in total length
A new method was developed to extract and analyze proteins from very short human hairs.
research Structural analysis of the outermost hair surface using TOF-SIMS with gas cluster ion beam sputtering
The hair's outermost surface has multiple layers of lipids and proteins.
research What is the best sampling region for endocrine hair analysis? A comparison between the posterior vertex and occipital region and recommendation for standardization
The occipital region is best for measuring cortisol and cortisone, while the posterior vertex is better for OEA, SEA, and PEA.
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 Determination of Exemestane in Human Plasma by LC-MS-MS
The method effectively showed that the two exemestane preparations are bioequivalent.
research Testosterone-like immunoreactivity in hair measured in minute sample amounts - a competitive radioimmunoassay with an adequate limit of detection
The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
research The determination of endogenous steroids in hair and fur: A systematic review of methodologies
research Comparative GC-MS Based In vitro Assays of 5α-Reductase Activity Using Rat Liver S9 Fraction
The S9 fraction with GC-IDMS is effective for measuring 5α-reductase activity.
research Human hair shaft proteomic profiling: individual differences, site specificity and cuticle analysis
Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
research Metabolomic biomarkers in women with polycystic ovary syndrome: a pilot study
Certain metabolites are lower in women with PCOS and could be potential markers for the condition.
research Quantitation of human mitochondrial DNA and whole mtGenomes sequencing of fingernail/hair shaft samples
Mitochondrial DNA from nails and hair can be effectively analyzed for forensic use.
research The site of uptake of iodine by hair
Iodine is absorbed by hair just below the skin surface.
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 A Rapid Extraction Procedure of Human Hair Proteins and Identification of Phosphorylated Species.
A new method quickly extracts and identifies proteins from hair and other keratin sources.
research A genetic electrophoretic variant of high-sulfur hair proteins for forensic hair comparisons. I. Characterization of variant high-sulfur proteins of human hair.
A genetic hair protein variant is more common in Japanese people and is inherited.
research Archeological hair in paleobiological research
Ancient South American mummies' hair shows high sulfur, calcium, and potassium levels.
research Testosterone Analysis in Hair
The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
research Examining the Utility of LA-ICP-MS for Detection of Time-resolved Zinc Exposures and Determination of Hair Growth Rate
LA-ICP-MS effectively measures zinc, lead, and mercury in hair.
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 O1: Contribution of in-utero drug exposure when interpreting hair results in young children
Hair analysis alone can't confirm long-term drug exposure in children under 1 year old.
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 Proteomic analysis of hair shaft and nail plate.
Hair and nail proteins, mainly keratins, are crucial for structure and can indicate health issues.
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.