research Acquired curved hair is caused by fusion of multiple hair matrix cells
Curved hair can develop when hair cells merge abnormally during growth.
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research Plica polonica: An overview of the disorder and its homoeopathic therapeutics
Plica Polonica is a rare hair disorder causing severe matting, managed by detangling or cutting, and prevented with regular hair care.
research Bubble hair
Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.
research Hair cross-sectioning in uncombable hair syndrome: An easy tool for complex diagnosis
The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.
research Human Hair Keratins.
research Pili annulati with fragility: Electron microscopic findings of a case
The study found that hair fragility in Pili annulati may be caused by cavities and damage within the hair shafts.
research Keratin formation in the hair follicle
Keratin fibrils in hair form and stop growing at specific points in the follicle.
research A case of localized uncombable hair syndrome
A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
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 Curl secret in cells
Hair curliness is caused by the arrangement and length of two different cell types.
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 New aspects of the structure of human hair on the basis of optical microscopic observations of disassembled hair parts.
Human hair's strength comes from a honeycomb-like structure and macrofibrils.
research Hair structure anatomy and comparative anatomy1 1Dedicated to the memory of the late Dr. R. E. Rivett whose untimely death prevented his role in co-authorship.
Human hair is complex and grows in cycles starting from embryonic life.
research Banded Scalp Hair with an Unusual Glistening Appearance in a Teenager: A Quiz
A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
research Structural analysis of human hair single fibres by scanning microbeam SAXS
Hair curliness is due to uneven distribution of different cortices within the hair fiber.
research Some electron microscope observations on hardening in the human hair follicle
The hair follicle structure is more complex than thought, with new findings on protein formation.
research Loose anagen hair of childhood: The phenomenon of easily pluckable hair
Children with loose anagen hair have easily pluckable hair due to root sheath problems, and it might improve without treatment.
research Pathogenesis of pili annulati
Pili annulati is caused by a protein metabolism disorder affecting hair structure.
research Case report: Exploring autosomal recessive woolly hair: genetic and scanning electron microscopic perspectives on a Japanese patient
A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
research [Wooly hair syndrome. Clinical and microscopic study].
Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.
research Coexisting trichorrhexis nodosa and pili annulati: a case report of hair shaft abnormalities in a syrian family
A 23-year-old Syrian woman has two rare hair disorders, and avoiding hair treatments plus using vitamins and minoxidil may help.
research Ugreelig hår
A young boy's uncombable hair is due to a rare genetic condition that usually improves over time.
research Local structure of human hair spatially resolved by sub-micron X-ray beam
Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
research Activation of the Notch pathway in the hair cortex leads to aberrant differentiation of the adjacent hair-shaft layers
Notch pathway activation causes abnormal hair layer development.
research Extractable substances from human hair: a discussion about the origin of the holes
Holes in mature hair are likely caused by the removal of substances during hair care.
research Location of keratin-associated proteins in developing fiber cuticle cells using immunoelectron microscopy
Keratin-associated proteins are part of the developing hair fiber cuticle.
research Human hair follicle cells of outer root sheath maintain their genuine keratin expression in vitro
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 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 Removal of Intact Hair Papilla and Connective Tissue Sheath by Plucking Anagen Hairs**From the Department of Dermatology of the University of Hamburg, Germany.
Plucking hairs in a certain way can result in intact hair roots, not related to baldness.