research Sample preparation protocol for cross-sectional microscopy of hair fibers v1
The document describes a method for preparing hair for microscopy by embedding it in plastic, cutting it, and storing it cold before imaging.
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180-210 / 1000+ results research Comparaison de différentes méthodes de conservation et d'extraction des composés phénoliques dans l'algue marine Ascophyllum Nodosum applicables dans les régions côtières et éloignées = Comparing the effects of different preservation and extraction methods on phenolic compounds in the sea weed Ascophyllum Nodosum applicable to remote coastal communities
research Examining polyquaternium polymers deposition on human excised hair fibers
Certain polymers can stick to hair and increase volume, working best at a pH of 7 to 9.
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.
research Contrast enhanced phototrichogram pinpoints scalp hair changes in androgen sensitive areas of male androgenetic alopecia
CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.
research Optimal processing for proteomic genotyping of single human hairs
The method improved hair analysis for better forensic identification.
research Staining of human skin with RGB trichrome unveils a proteoglycan-enriched zone in the hair dermal sheath
A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.
research A novel method for visualizing hair lipids at the cell membrane complex: Argon sputter etching/scanning electron microscopy1
The method shows how hair lipids form specific patterns and their roles in hair structure.
research Simultaneous RP-HPLC-DAD determination of dansyl amino acids in chemically treated human hair
A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
research Technique for Processing and Routing Staining of Hair Samples for Histological Study
A new method effectively stains hair samples for study without losing hair sections.
research UHPLC/Q-TOFMS-based plasma metabolomics of polycystic ovary syndrome patients with and without insulin resistance
The research found different metabolism changes in PCOS patients and suggested new potential markers for diagnosing PCOS with or without insulin resistance.
research Measurement of Steroid Hormones in Hair: an Analysis of Hormone Dynamics in Hair Follicles
The method accurately measures steroid hormones in hair to study hormone dynamics related to hair loss.
research Phototrichogram as a tool to assess the effectiveness of minoxidil therapy in patients with androgenetic alopecia
research Design and Validation of a Sensitive Multisteroid LC-MS/MS Assay for the Routine Clinical Use: One-Step Sample Preparation with Phospholipid Removal and Comparison to Immunoassays
The new LC-MS/MS method is more accurate and reliable than traditional immunoassays for measuring steroids in serum.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of 5-alpha-dihydrotestosterone in human serum and plasma
The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
research Pigmentary-Hair-Follicle Unit Under Innovative Pathologic Investigation - Is There a Potential to Improve Outcome of Sensor-Controlled Scalp-Cooling?
research Analysis of keratin films as screening tools for predicting the efficacy of potential hair dyes
Translucent keratin films are better for testing hair dyes.
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 Chemical and photo-oxidative hair damage studied by dye diffusion and electrophoresis.
Chemical treatments and light exposure damage hair proteins.
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 Quantifying variation in human scalp hair fiber shape and pigmentation
African hair is curled, Asian hair is thick, European hair is lighter, and chemical methods help identify hair color differences.
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 Non-invasive skin measurement methods and diagnostics for vitiligo: a systematic review
Reliable, non-invasive tools are needed for better vitiligo diagnosis.
research Hair evaluation methods: Merits and demerits
Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.
research A Reliable Procedure for Measuring Cortisol Levels in Rhesus Macaque Hair Samples
The procedure reliably measures cortisol in rhesus macaque hair.
![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 Modulation of Electroosmotic Flow through Skin: Effect of Poly(Amidoamine) Dendrimers
Polyamidoamine dendrimers can change the strength and direction of electroosmotic flow through the skin, affecting drug delivery.
research How storage post sampling influences the stability of sebum when used for mass spectrometry metabolomics analysis?
Sebum samples remain stable under various storage conditions, making them suitable for remote and at-home testing.
research [Analysis of normal human hair keratins by two-dimensional polyacrylamide gel electrophoresis].
research DETERMINATION OF FINASTERIDE AND RELATED COMPOUNDS BY REVERSED-PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY. I. CHOOSING THE MOBILE PHASE COMPOSITION
Best results found using acetonitrile, water, and trifluoroacetic acid or methanol mixture.