research Deficiency of Crif1 in hair follicle stem cells retards hair growth cycle in adult mice
Lack of Crif1 in hair follicle stem cells slows down hair growth in mice.
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research Sparse Hair on the Scalp
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
research Pili Annulati with Multiple Fragile Hairs
Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
research Bubble hair and other acquired hair shaft anomalies due to hot ironing on wet hair
Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
research Characterization of curved hair of Japanese women with reference to internal structures and amino acid composition.
Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
research Acquired progressive kinking of the hair following COVID‐19 disease
COVID-19 can cause hair to become progressively kinked.
research Understanding breakage in curly hair
Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.
research 855 Targeted deletion of crif1 in mouse skin epidermis impairs skin homeostasis
Removing the Crif1 gene in mouse skin disrupts skin balance and hair growth.
research The twisting tale of woolly hair: a trait with many causes
New genes linked to woolly hair have been found, which could help treat it and change hair texture.
research Microscopic Hair Changes Associated with Hair Coloring, Hair Waving and Hair Ironing in Iranian Women
Hair coloring, waving, and ironing cause more hair damage than not using these treatments.
research Woolly hair nevus
A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
research Pseudopili Annulati in a Dark‐Haired Individual: A Light and Electron Microscopic Study
A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
research Quasi-Static Torsional Deformation of Single Hair Fibers: Application of a Modeling Approach and Results from Cosmetic Treatments.
The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
research Hair Weathering
Avoid chemical and physical damage to protect hair.
research Curly Hair Follicle is Sculpted by a Contracted Arrector Pili Muscle. A Hypothesis with Treatment Implications
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
research Reimagining Hair Science: A New Approach to Classify Curly Hair Phenotypes via New Quantitative Geometrical & Structural Mechanical Parameters
New methods to classify curly hair types were developed based on shape and strength.
research The Secrets of Beautiful Hair: Why is it Flexible and Elastic?
Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
research Effect of Disulfide Bonds in Human Hair Fibers on the Melting Behavior of Their Crystalline Structure
Changing disulfide bonds in human hair affects its melting behavior and thermal stability.
research Acquired curved hair is caused by fusion of multiple hair matrix cells
Curved hair can develop when hair cells merge abnormally during growth.
research Hair curvature: a natural dialectic and review
The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
research A reciprocal lattice approach to assessing the luster of hair fibers, based on scattering by periodically deformed cylinders
A new method helps understand hair shine and various products improve hair care.
research X-ray diffraction study of the nanostructural dynamics of fibrillar systems of hair tissue
Hair tissue can help monitor environmental and public health risks.
research Characteristic Microstructure of Curved Human Hair
Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
research Effect of disulfide bonds in human hair fibers on the melting behavior of their crystalline structure
Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
research Woolly Hair in Two Siblings
Two siblings have a rare genetic condition causing curly, coarse hair.
research Autosomal-Dominant Woolly Hair Resulting from Disruption of Keratin 74 (KRT74), a Potential Determinant of Human Hair Texture
A mutation in the KRT74 gene causes tightly curled hair.
research In-Situ Tensile Testing of Hair Fibers in An Environmental Scanning Electron Microscope (ESEM)
Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.
research ‘Plica neuropathica’: Matting of Hair
A girl's severely tangled hair couldn't be fixed and had to be cut due to a rare condition called plica neuropathica.
research Worldwide diversity of hair curliness: a new method of assessment
A new method accurately classifies hair types, showing global hair diversity.
research Pili torti in association with citrullinemia
A girl with citrullinemia developed pili torti, suggesting a link between the hair condition and the metabolic disorder.