Curly wool has more orthocortex than straight wool.
15 citations
,
May 2010 in “International Journal of Cosmetic Science” The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
13 citations
,
January 2002 in “Biological chemistry” Different conditions affect how hair proteins assemble, and certain mutations can change their structure.
7 citations
,
January 1988 3 citations
,
January 1994
191 citations
,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
7 citations
,
December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure” 51 citations
,
January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
January 2022 in “Mammalian Genome” The wavy coat in NCT mice is caused by multiple genes, including a mutation in the Prss53 gene.
27 citations
,
May 2019 in “Cosmetics” The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.
28 citations
,
October 1985 in “The Journal of Cell Biology” Researchers isolated and identified structural components of human hair follicles, providing a model for studying hair formation.
15 citations
,
June 2012 in “British Journal of Dermatology” A new mutation in the KRT86 gene causes a hair disorder with variable expression.
72 citations
,
May 1993 in “The Journal of Cell Biology” Trichohyalin in sheep hair follicles may help with structure and calcium binding.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
53 citations
,
September 1999 in “Journal of Synchrotron Radiation” Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.
1 citations
,
January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
35 citations
,
January 2000 in “Journal of comparative neurology” Rat vibrissae have sensory terminals with specific structures that help detect hair movements.
1 citations
,
April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
55 citations
,
November 2010 in “Development” Hair follicles in mutant mice self-organize into ordered patterns within a week.
34 citations
,
July 1958 in “Biochimica et Biophysica Acta” 3 citations
,
December 2021 in “Proteins” Wool fiber curliness is linked to the presence of certain proteins and K38.
15 citations
,
December 1972 in “Journal of Investigative Dermatology” 50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
76 citations
,
December 2011 in “Journal of Cell Science” Different keratin types have unique amino acid patterns that are evolutionarily conserved.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.