103 citations,
January 2009 in “Carbon” Pure carbon nanotubes are safe for mice, but impure ones cause immune issues and hair loss.
48 citations,
November 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Genetic variations in hair keratin proteins exist but don't significantly affect hair structure.
13 citations,
April 2022 in “Frontiers in oncology” Melanoma development can be linked to the breakdown of skin's melanin-producing units.
90 citations,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
56 citations,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
30 citations,
August 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” TGase 3 helps build hair structure by forming strong bonds between proteins.
22 citations,
April 2020 in “Scientific reports” Changthangi goats have specific genes that help produce Pashmina wool.
170 citations,
November 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin can heal wounds without hair follicle stem cells, but it takes a bit longer.
94 citations,
July 2003 in “Journal of biological chemistry/The Journal of biological chemistry” EGF controls hair growth by regulating hair follicles' growth phases.
40 citations,
June 2011 in “Journal of biological chemistry/The Journal of biological chemistry” FA2H is essential for normal fur and sebum production in mice.
34 citations,
June 2005 in “Developmental dynamics” Runx3 helps determine hair shape.
34 citations,
January 1997 in “Skin Pharmacology and Physiology” Minoxidil affects cell growth in two ways: low doses increase growth, while high doses slow it down and can be toxic.
130 citations,
December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle melanocytes die during hair regression.
113 citations,
March 2018 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.
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May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
67 citations,
December 1990 in “The journal of cell biology/The Journal of cell biology” Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.
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April 2020 in “Cells” Special cell particles from macrophages can help hair grow.
33 citations,
February 1999 in “The journal of investigative dermatology/Journal of investigative dermatology” IGF-1 increases whisker growth in transgenic mice.
26 citations,
January 2018 in “Annals of dermatology/Annals of Dermatology” Hair graying may be caused by stem cell depletion from stress or melanocyte damage.
25 citations,
May 2019 in “Cosmetics” 18-MEA and cationic surfactants can restore and maintain hair's hydrophobic nature, improving its beauty and feel.
25 citations,
December 1992 in “Seminars in cell biology” Skin stem cells are maintained by signals from nearby cells and vary in their ability to renew and mature.
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May 2020 in “Archiv für Tierzucht” Researchers identified genes that may affect hair growth in Cashmere goats.
8 citations,
March 2022 in “Journal of The Taiwan Institute of Chemical Engineers” Extracts from a type of brown seaweed can help promote hair growth.
8 citations,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
3 citations,
November 2021 in “Applied Microscopy” Hair microscopy is a simple and cost-effective method to help diagnose systemic diseases in children.
October 2024 in “Cosmetics” Afro-textured hair needs personalized care due to its unique genetic traits.
March 2024 in “Journal of functional foods” Collagen peptides from marine and bovine sources may help prevent hair loss by affecting hair follicle stem cells differently.
August 2023 in “International Journal of Molecular Sciences” The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.
October 2022 in “BMC genomics” RNA editing significantly affects hair growth and follicle cycling in the Tianzhu white yak.
235 citations,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.