Hairlessness in mammals is due to complex genetic changes in both genes and regulatory regions.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
2 citations
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July 2019 in “Indian dermatology online journal” A 17-year-old girl and her brothers have a rare hair condition with long eyelashes, thick eyebrows, and easily pluckable hair.
7 citations
,
November 2006 in “Journal of immunological methods” The method can help diagnose and monitor diabetes by analyzing hair.
January 2005 in “Journal of Zhejiang University(Sciences Edition)” Yuyi hairless mice lose hair after birth, develop thick, loose skin with folds, and show disorganized skin structure as they age.
1 citations
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November 2023 in “iScience” A protein called desmoglein 3 is important for keeping hair follicle stem cells inactive and helps in their regeneration.
85 citations
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October 2007 in “International Journal of Dermatology” Curly hair shape is due to uneven growth patterns in the hair follicle.
2 citations
,
September 2017 in “Mehmet Akif Ersoy Üniversitesi Veteriner Fakültesi dergisi” Specific genes influence hair growth and quality in goats and sheep.
6 citations
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January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.
16 citations
,
November 2022 in “eLife” Both gene and non-gene areas of DNA evolved to make some mammals hairless.
January 1994 in “Nihon Chikusan Gakkaiho” Collagen fibrils in mink skin change structure during hair growth, becoming looser and thicker in the active phase.
8 citations
,
October 2024 in “Developmental Cell” Giant axonal neuropathy changes the structure of keratin in human hair, making it stiffer and stronger.
Lack of Fgf21 slows hair growth by affecting gene interactions.
43 citations
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August 2018 in “Cell Stem Cell” Hoxc genes control hair growth through Wnt signaling.
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.
26 citations
,
December 1990 in “Journal of Biological Chemistry” Two specific genes are more active during hair growth in mice.
67 citations
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February 1994 in “Developmental dynamics” Specific proteins and molecules play key roles in the development of human hair follicles.
10 citations
,
May 1986 in “Experientia” Too much zinc in the diet can cause hair loss and color change in young mice by reducing copper in the body.
Chrysanthemum zawadskii extract may help treat hair loss by promoting hair growth and affecting growth factors.
3 citations
,
June 2001 in “Scientific American”
87 citations
,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
January 2010 in “Journal of Yangzhou University” Sulfated fucans promote hair growth in mice by speeding up the growth phase and delaying the rest phase.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
11 citations
,
January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
7 citations
,
January 2017 in “Sub-cellular biochemistry/Subcellular biochemistry” January 2014 in “Международный журнал прикладных и фундаментальных исследований” Zinc affects hair growth and may be linked to hair loss.
14 citations
,
September 2001 in “Archives of Dermatological Research” Blocking hair follicle development stops key gene signals needed for hair growth in mice.
2 citations
,
February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
15 citations
,
April 2002 in “British Journal of Dermatology” Hairless gene not strongly linked to baldness.