March 2023 in “International Journal of Dermatology” COVID-19 can cause hair to become progressively kinked.
4 citations
,
August 2014 in “Journal of molecular structure” Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
30 citations
,
February 2015 in “Anais Brasileiros de Dermatologia” Trichoscopy is useful for diagnosing Netherton syndrome in children with skin issues.
2 citations
,
July 2021 in “Genes” A specific genetic change in the KRT71 gene causes a hair loss condition in Hereford cattle.
18 citations
,
September 1994 in “Clinical and Experimental Dermatology” Localized trichorrhexis nodosa is a hair condition where hair becomes fragile and breaks easily due to damage.
September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
35 citations
,
January 2000 in “Journal of comparative neurology” Rat vibrissae have sensory terminals with specific structures that help detect hair movements.
15 citations
,
October 1976 in “Biochemical Journal” Naked-mouse hair lacks certain proteins and has less soluble fibril.
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.
2 citations
,
October 2022 in “Journal of structural biology” Older thin hair is not just thinner but also has different shape, structure, and stiffness.
46 citations
,
August 2006 in “Mechanisms of Development” Runx1 is crucial for proper hair structure and development.
8 citations
,
January 2014 in “Indian Dermatology Online Journal” Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.
72 citations
,
July 1984 in “Journal of Investigative Dermatology” 10 citations
,
January 1997 in “Dermatology” Two siblings were diagnosed with Trichothiodystrophy, identified by brittle hair and low sulfur content.
1 citations
,
January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
April 2026 in “Chinese Chemical Letters” 49 citations
,
April 2007 in “Pediatric Dermatology” Biotin improved hair appearance in uncombable hair syndrome but didn't change hair structure.
Polarized microscopy helps identify hair irregularities in genetic disorders.
17 citations
,
March 2011 in “Pediatric Dermatology” Two Sikh brothers developed permanent hair loss from wearing turbans tightly, a condition that became apparent after they moved to Austria.
6 citations
,
March 2017 in “Journal of the European Academy of Dermatology and Venereology” Identical twins with a rare KRT 86 gene mutation both have the hair disorder monilethrix.
October 2012 in “Zhongguo shengwu gongcheng zazhi” Effective DNA extraction from hair shafts is crucial for genetic studies.
February 2023 in “Cosmoderma” Loose anagen hair syndrome causes easily shed hair but usually improves with time.
12 citations
,
January 2014 in “Cell structure and function” Different combinations of human hair keratins affect how hair fibers form.
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.
7 citations
,
September 2006 in “Molecular Carcinogenesis” Homozygous K5Cre transgenic mice have wavy hair and faster cancer progression.
3 citations
,
July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
4 citations
,
January 2009 in “PubMed” A mutation in the KRT86 gene causes hair fragility in a Turkish family.
December 2025 in “British Journal of Dermatology” 38 citations
,
February 1989 in “Journal of Investigative Dermatology” 108 citations
,
October 2003 in “Journal of biological chemistry/The Journal of biological chemistry” Trichohyalin makes hair follicles stronger.