July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
2 citations
,
June 2001 in “Medical Electron Microscopy” Trichilemmal cysts may form from hair follicle outer root sheath growth.
Diagnosing and managing monilethrix is harder when it occurs with other hair loss conditions.
Diagnosing and managing monilethrix is harder when it occurs with other hair loss conditions.
62 citations
,
December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
9 citations
,
January 2011 in “American Journal of Dermatopathology” Pilomatrixoma involves abnormal hair keratin production and cell death, causing debris and cysts.
175 citations
,
August 1997 in “Nature Genetics”
6 citations
,
May 2003 in “PubMed” Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
1 citations
,
January 2019 in “Zenodo (CERN European Organization for Nuclear Research)” Eclipta alba has unique stem, leaf, and root features, including air cavities and secretory structures.
March 2021 in “CRC Press eBooks” The document concludes that different patterns of hair thickness and scalp changes can help diagnose types of non-scarring hair loss.
13 citations
,
March 2019 in “PLoS ONE” A new method improves protein analysis in hair, aiding health and disease research.
38 citations
,
July 1993 in “Journal of Investigative Dermatology” 24 citations
,
January 1969 in “Archives of Dermatological Research” Hair malformations may occur due to timing issues in hair development.
July 2026 in “arXiv (Cornell University)” Hair has varying structures and properties along its length.
7 citations
,
March 2020 in “Journal of the American Academy of Dermatology” EGFR inhibitors often cause dry, brittle hair and eyebrow/eyelash changes.
85 citations
,
January 1990
15 citations
,
May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
31 citations
,
December 2002 in “Biochimica et biophysica acta. G, General subjects/Biochimica et biophysica acta. General subjects (Online)” The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
Curly wool has more orthocortex than straight wool.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
14 citations
,
May 1979 in “International Journal of Dermatology” Trichostasis spinulosa mainly affects the nose, with many tiny hairs in one follicle, possibly influenced by hormones and sunlight.
1 citations
,
July 2024 in “International Journal of Cosmetic Science” Infrared techniques reveal glycogen, unsaturated lipids, and calcium compounds in hair.
January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.
3 citations
,
January 2021 in “Veterinary dermatology” A litter of cats had a hair condition similar to a mouse mutation, leading to hair loss and abnormal hair and skin.
May 2010 in “Journal of Investigative Dermatology” 19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
248 citations
,
April 1988 in “Differentiation” Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.
8 citations
,
February 2022 in “International Journal of Dermatology” Lipids are crucial for healthy hair, protecting it from damage and breakage.
February 1990 in “PubMed” Hair follicle cells and skin cells differ in keratinization and other features.