February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
1 citations
,
January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
3 citations
,
January 1988
Curly wool has more orthocortex than straight wool.
13 citations
,
August 2020 in “Frontiers in Cell and Developmental Biology” Twist1 helps maintain important features of cells crucial for hair growth by working with Tcf4 and β-catenin.
March 2026 in “Indian Journal of Dermatopathology and Diagnostic Dermatology” Corkscrew hairs can help diagnose trichotillomania.
22 citations
,
January 1985 Water makes hair more flexible, especially the outer layer.
28 citations
,
January 2012 in “Case Reports in Medicine” Hair-thread Tourniquet Syndrome, where hair or thread tightly wraps around a body part, is not rare and requires early detection to prevent serious damage.
9 citations
,
March 2005 in “International Journal of Cosmetic Science” The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
Yak hair stretches mainly due to macromolecules slipping past each other.
37 citations
,
March 2005 in “Journal of Paediatrics and Child Health” A hair strand caused a rare case of limb strangulation in a teenage girl with autism, and the condition is not always linked to child abuse.
January 2013 in “Wool textile journal” 55 citations
,
February 2014 in “Journal of Structural Biology” Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
21 citations
,
July 2005 in “European Journal of Emergency Medicine” Hair-tourniquet syndrome can cause serious toe injuries in infants but can be treated if found early.
8 citations
,
May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
27 citations
,
March 2018 in “Journal of Experimental Biology” Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
55 citations
,
November 2010 in “Development” Hair follicles in mutant mice self-organize into ordered patterns within a week.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
53 citations
,
March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.
65 citations
,
May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
108 citations
,
March 2011 in “Archives of Dermatology” Corkscrew hair may be a new sign for quickly diagnosing scalp fungus in black children.
9 citations
,
July 2014 in “Skin research and technology” Stretching damages Caucasian hair's structure more easily than Asian hair.
22 citations
,
November 2014 in “Proteins Structure Function and Bioinformatics” Cysteines in wool fibers are accessible and form important disulfide bonds.
40 citations
,
July 1981 in “Journal of Neuropathology & Experimental Neurology” Copper injections improved symptoms and prevented brain damage in brindled mice.
March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
22 citations
,
July 2006 in “Annals of The Royal College of Surgeons of England” Hair or fiber wrapped tightly around a toe can lead to serious injury if not treated quickly.
7 citations
,
January 2016 in “Methods in molecular biology” Neurons from hair follicles can help repair damaged nerves.
January 1961 in “The Journal of Anthropological Society of Nippon” Hair form in mixed-blood families varies due to hereditary twist-knots and pigment formation.