March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
June 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzymes Tet1, Tet2, and Tet3 are important for the development of hair follicles and determining hair shape by controlling hair keratin genes.
19 citations
,
July 2009 in “Clinical and Experimental Dermatology” The study found that long-term sun exposure does not significantly affect follicular plugs on the scalp, and the scalp's appearance is unique compared to other body parts.
8 citations
,
May 2008 in “Applied surface science” Mummy hair from the Taklamakan desert has calcium and phosphorus inside.
9 citations
,
January 1980 in “Dermatology” Hair casts may be caused by repetitive hair pulling or styling and are often misdiagnosed.
38 citations
,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
8 citations
,
October 2024 in “Developmental Cell” 13 citations
,
May 2017 in “Current Protocols in Stem Cell Biology” A method was developed to isolate and study hair follicle stem cells from mouse skin.
April 2018 in “Journal of Investigative Dermatology” The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
7 citations
,
March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
16 citations
,
September 2019 in “Journal of biological chemistry/The Journal of biological chemistry” Mice without certain skin enzymes have faster hair growth and bigger eye glands.
7 citations
,
September 1980 in “Zoological Journal of the Linnean Society” Dendritic cells help regulate skin development and hair growth in mice.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
158 citations
,
December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
July 2025 in “Journal of Investigative Dermatology” Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.
January 2024 in “Revista del Centro Dermatológico Pascua” Avoiding damage and using specific shampoo and supplements improved the hair condition.
1 citations
,
January 2009 in “Journal of Dermatology and Venereology” Cells from the upper hair follicle grow more actively, suggesting stem cells may be located there.
Different treatments change the strength and flexibility of human hair.
1 citations
,
July 1935 in “Nature” Animal hair can curl tightly on its own, especially in foxes, due to changes in keratin.
September 2016 in “Journal of Dermatological Science” The protein aPKCλ is crucial for keeping hair follicle stem cells inactive and for hair growth and regeneration.
142 citations
,
February 2016 in “Science” Foxc1 helps keep hair follicle stem cells inactive, preventing hair loss.
3 citations
,
January 2014 in “Indian dermatology online journal” Hair casts can be mistaken for lice, so correct identification is important.
24 citations
,
December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
36 citations
,
July 1988 in “Archives of Dermatological Research” Pili annulati is caused by a protein metabolism disorder affecting hair structure.
28 citations
,
December 2010 in “Langmuir” Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.
14 citations
,
February 2020 in “Scientific reports” Telocytes in the scalp may help with skin regeneration and maintenance.
1 citations
,
October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
August 2013 in “International Wound Journal” Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
24 citations
,
January 1969 in “Archives of Dermatological Research” Hair malformations may occur due to timing issues in hair development.
3 citations
,
January 2015 in “Sen i Gakkaishi” The new keratin film without KAPs stains better and could help study keratin functions.