research Three-dimensional architecture of macrofibrils in the human scalp hair cortex
Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
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research Ultrastructural Localization of Hair Keratins in Human Scalp Hair Shafts as Revealed by Rapid-Freezing Immunocytochemistry.
Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.
research Qualitative investigation of fresh human scalp hair with full-field optical coherence tomography
Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
research The Influence of Surgical Stress on Human Scalp Hair Fiber Dimensions
Surgical stress temporarily changes hair fiber dimensions, returning to normal after four weeks.
research Transmission electron microscopy staining methods for the cortex of human hair: a modified osmium method and comparison with other stains
The modified osmium method improves hair cortex staining for better visualization.
research Ultrastructural Localization of S100A3, a Cysteine-rich, Calcium Binding Protein, in Human Scalp Hair Shafts Revealed by Rapid-freezing Immunocytochemistry
S100A3 protein is mainly found in specific parts of human hair cells.
research Evidence for various calcium sites in human hair shaft revealed by sub-micrometer X-ray fluorescence
The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
research Wetting behavior of human hair fibers
Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
research Influence of Oxidative and/or Reductive Treatment on Human Hair (I): Analysis of Hair-Damage after Oxidative and/or Reductive Treatment
Chemical treatments and daily stresses damage hair, especially the cuticle layer.
research Measuring changes in chemistry, composition, and molecular structure within hair fibers by infrared and Raman spectroscopic imaging
Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
research Unraveling the Strand: A Comprehensive Review on the Forensic Significance of Microscopic Human Scalp Hair Analysis
Microscopic hair analysis is important in forensics but has limitations; new technologies are improving its accuracy.
research The feasibility of quantitative analysis of androgen metabolism by use of single dermal papillae from human hair follicles
Using single dermal papillae is unreliable for analyzing androgen metabolism in hair follicles.
research On Pathways for Small Molecules Into and Out of Human Hair Fibers
Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.
research Evidence for calcium soaps in human hair shaft revealed by sub-micrometer X-ray fluorescence
Calcium soaps are present in human hair and can be removed with acid.
research Chronological ageing of human hair keratin fibres
Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
research Morphology and ultrastructure of antler velvet hair and body hair from red deer (Cervus elaphus)
Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
research A cDNA encoding the human type I hair keratin hHa1
hHb1, hHb3, and hHb6 mRNAs start expressing at the same time in hair follicles.
research Resident human dermal γδT-cells operate as stress-sentinels: Lessons from the hair follicle
Human dermal γδT-cells respond to stress in hair follicles, contributing to hair loss.
research Cultured Cells from the Adult Human Hair Follicle Dermis can be Directed Toward Adipogenic and Osteogenic Differentiation
Human hair follicle cells can become fat and bone cells, useful for therapy.
research 315 Butyrophilin-like 2 (BTNL2) controls auto-aggressive dermal γδT lymphocytes that attack human hair follicles.
BTNL2 helps protect hair follicles from immune attacks.
research The structure of the “amorphous” matrix of keratins
Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
research Human hair morphology: a scanning electron microscopy study on a male Caucasoid and a computerized classification of regional differences.
Hair varies in size and features depending on body region.
research In Vitro Culturing and Harvesting of Human Plucked Hair Follicles
Growing hair cells in the lab from plucked hairs could lead to a new, less invasive, and cheaper baldness treatment.
research The co-expression pattern of VEGFR-2 with indicators related to proliferation, apoptosis, and differentiation of anagen hair follicles
VEGFR-2 activation is likely involved in hair follicle growth, survival, and development.
research Characterization of a Cluster of Human High/Ultrahigh Sulfur Keratin-associated Protein Genes Embedded in the Type I Keratin Gene Domain on Chromosome 17q12-21
A cluster of sulfur-rich hair protein genes was found on chromosome 17.
research Characterization of a First Domain of Human High Glycine-Tyrosine and High Sulfur Keratin-associated Protein (KAP) Genes on Chromosome 21q22.1
Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
research Cortexolone 17α-Propionate (Clascoterone) is an Androgen Receptor Antagonist in Dermal Papilla Cells In Vitro
Clascoterone may be an effective topical treatment for hair loss.
research Faculty Opinions recommendation of Clinical applications of cortisol measurements in hair.
Hair cortisol measurement is a promising, non-invasive tool for monitoring cortisol exposure over time.
research Single-cell transcriptomics reveals lineage trajectory of human scalp hair follicle and informs mechanisms of hair graying
The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
research Human scalp hair: Modulation by various factors and hormones do estrogens inhibit or stimulate—A perplexing perspective
The effects of estrogen on human scalp hair growth are unclear and need more research.