45 citations
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April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
December 2025 in “British Journal of Dermatology” 4 citations
,
January 2011 in “International Journal of Trichology” Treating scalp issues in hair-pulling disorder helps hair regrow and reduces itch.
62 citations
,
January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
8 citations
,
August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.
55 citations
,
November 2010 in “Development” Hair follicles in mutant mice self-organize into ordered patterns within a week.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
6 citations
,
February 2019 in “Scientific reports” A brain-produced steroid causes increased scratching in mice with a skin condition similar to eczema.
61 citations
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February 1982 in “Cell and Tissue Research” 16 citations
,
June 2015 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme DHHC13 is essential for healthy hair and skin, and its deficiency leads to hair loss and skin problems.
5 citations
,
March 1943 in “Archives of Dermatology and Syphilology” A rare case of severe scalp hair loss and nail issues in keratosis follicularis was observed.
95 citations
,
January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
January 2025 in “SSRN Electronic Journal” March 2004 in “Journal of Investigative Dermatology” Razor bumps are linked to a genetic variant, misoprostol helps erythromelalgia pain, steroid ointments don't affect skin rhythms, and certain antibodies are common in localized scleroderma.
April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” HSD11b1 affects skin nerves and increases non-histaminergic itch.
January 2021 in “Nasza Dermatologia Online” Plica polonica is a rare condition where hair becomes irreversibly tangled, and the treatment is to cut the matted hair.
November 2024 in “Journal of Investigative Dermatology” Scalp hair follicle cells help protect and heal skin in certain skin conditions.
50 citations
,
October 1918 in “The journal of experimental zoology” Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.
1 citations
,
January 2019 in “Pan African Medical Journal” Keratosis pilaris causes small skin bumps, mainly in women, and treatments offer only temporary relief.
13 citations
,
January 2012 in “International journal of trichology” The study found that hair fragility in Pili annulati may be caused by cavities and damage within the hair shafts.
15 citations
,
December 1972 in “Journal of Investigative Dermatology” 2 citations
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January 2007 in “Actas Dermo-Sifiliográficas” Two cases of hairy elbows syndrome were described, with normal skin texture and symmetrical hair growth.
13 citations
,
June 2012 in “Journal of Dermatological Case Reports” An 8-year-old boy with hair-pulling disorder had a bald patch that was confirmed not to be a fungal infection and was treated with therapy.
6 citations
,
January 2016 in “Journal of Biomedical Photonics & Engineering” Clipping hair is gentler on the skin and reduces bacteria better than shaving with a razor.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
1 citations
,
January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
Researchers made a mouse model with curly hair and hair loss by editing a gene.
17 citations
,
July 1984 in “British journal of dermatology/British journal of dermatology, Supplement” The four patients have a unique type of ichthyosis affecting hair follicles.
85 citations
,
October 2007 in “International Journal of Dermatology” Curly hair shape is due to uneven growth patterns in the hair follicle.