Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
215 citations,
November 2000 in “Journal of Investigative Dermatology” The system allows precise control of gene expression in mouse skin, useful for studying skin biology.
45 citations,
December 2007 in “The FASEB journal” There are two types of stem cells in rodent hair follicles, each with different keratin proteins.
14 citations,
October 2002 in “Journal of cutaneous pathology” MAP-2 is crucial for the structure of hair follicles and nails.
8 citations,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
2 citations,
July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
April 2018 in “Journal of Investigative Dermatology” The human skin's outer layer has more variety in cell types and development paths than previously thought.
1 citations,
August 2020 in “CRC Press eBooks” Hair growth can be influenced by manipulating keratin and growth factor genes.
August 2019 in “Journal of Investigative Dermatology” Frog skin cells need the protein desmoplakin for proper development and cell layer formation.
57 citations,
April 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin D receptor is crucial for starting hair growth after birth.
15 citations,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
2 citations,
October 2022 in “Journal of structural biology” Older thin hair is not just thinner but also has different shape, structure, and stiffness.
1 citations,
May 2023 in “Journal of molecular evolution” Pangolins have lost some skin-related genes, but kept others, leading to their unique scales and skin features.
April 2017 in “Journal of Investigative Dermatology” Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.
March 2022 in “Veterinary dermatology” A one-year-old cat had multiple benign skin tumors similar to those known in humans.
Hair fiber research combines multiple sciences to improve hair care products.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
May 2022 in “Experimental dermatology” Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
33 citations,
August 2013 in “Journal of Investigative Dermatology” Human hair follicle stem cells show signs of low oxygen levels, which may be important for hair growth and preventing baldness.
12 citations,
July 2016 in “Forensic science international” The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.
April 2016 in “Journal of Investigative Dermatology” Lymphoid-specific helicase (Lsh) is crucial for skin growth, change, and healing after injury.
45 citations,
April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
research Hair
1 citations,
April 2023 in “Elsevier eBooks” Hair analysis can detect drug use but is costly and interpretation is complex.
21 citations,
September 2005 in “The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology/Anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology” Caspase-14 is important for skin and hair development in all mammals.
17 citations,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
6 citations,
November 2018 in “Histochemistry and Cell Biology” Mongolian gerbils heal wounds differently than mice, with unique protein levels and gene expression that affect skin repair.
6 citations,
January 2006 in “Journal of dermatological science” Runx1 helps control the KAP5 gene in human hair follicles.
3 citations,
December 2020 in “Scientific reports” Mitochondrial problems in tooth cells lead to bad enamel and dentin development in mice.
3 citations,
August 1980 in “Acs Symposium Series” Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.