Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
103 citations
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December 1986 in “Journal of Investigative Dermatology”
1 citations
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December 2024 in “Methods in molecular biology” Hair proteins are complex and provide valuable genetic and biological information.
14 citations
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March 2000 in “Journal of Zoo and Wildlife Medicine” A new type of mite caused hair loss in a koala, which was treated successfully with ivermectin.
52 citations
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February 1986 in “Journal of Histochemistry & Cytochemistry” Some hair proteins are specific to hair, while others are also found in skin cells.
2 citations
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March 1989 in “International Journal of Dermatology” 41 citations
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January 2001 in “Journal of Investigative Dermatology”
2 citations
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October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
Hair feels different when touched and rubs together in various ways.
June 2024 in “Annals of Medicine and Surgery” A 23-year-old Syrian woman has two rare hair disorders, and avoiding hair treatments plus using vitamins and minoxidil may help.
6 citations
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July 2021 in “The anatomical record” Different whale and dolphin species have unique whisker follicle structures, suggesting they might use their whiskers in various ways.
10 citations
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September 1994 in “International Journal of Dermatology” Three Iranian men had reddish-brown facial pigmentation with no effective treatment.
28 citations
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September 2013 in “European Journal of Histochemistry” Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
February 1999 in “The anatomical record” Two mouse mutants have defective hair cuticle cross-linking.
5 citations
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January 2006 in “Indian Journal of Dermatology, Venereology and Leprology” Synthetic hairs are not recommended for use.
7 citations
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
33 citations
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March 2006 in “Seminars in cutaneous medicine and surgery” The document explains how to identify different hair problems using a microscope.
5 citations
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November 2012 in “Actas Dermo-Sifiliográficas” Comma hairs are a new sign for identifying scalp fungal infections.
15 citations
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October 1976 in “Biochemical Journal” Naked-mouse hair lacks certain proteins and has less soluble fibril.
29 citations
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March 2012 in “Journal of Experimental Biology” Tarantula feet likely have chemoreceptors, not silk-producing parts.
68 citations
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April 1965 in “General and Comparative Endocrinology” The pituitary gland controls seasonal fur color changes in weasels.
January 2015 in “Chinese Veterinary Science” Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.
6 citations
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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.
2 citations
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April 2008 in “PubMed” A gene mutation causes monilethrix in a Chinese family.
4 citations
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August 2013 in “Pediatric dermatology” Hair casts can be treated with physical removal and special shampoos.
Onychomatricoma is a unique nail tumor, not related to other hair-related tumors.
Polarized microscopy helps identify hair irregularities in genetic disorders.
77 citations
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April 1968 in “Development” Excess vitamin A can cause hair follicles to change into gland-like structures.
January 2006 in “Durham e-Theses (Durham University)” Id proteins, especially Id2 and Id3, are crucial for hair follicle development and stem cell regulation.