July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists created a detailed map of gene activity in different parts of human hair follicles.
32 citations
,
February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
3 citations
,
July 2023 in “Frontiers in Aging” Hair follicle stem cells change states with age, affecting hair growth and aging.
Hair movement can indicate hair quality and health.
A genetic variant in the KRT71 gene may cause loose anagen hair and wooly hair, and symptoms might improve with age.
85 citations
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January 1990 34 citations
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July 1958 in “Biochimica et Biophysica Acta”
43 citations
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August 2008 in “Regenerative Medicine” Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.
1 citations
,
January 2012 in “Journal of The Society of Japanese Women Scientists” Murine hair has specific types of ceramides and glucosylceramides but lacks acylceramides.
January 1957 in “Nihon Chikusan Gakkaiho” Rabbit hair color is influenced by the shape and distribution of pigment granules.
8 citations
,
March 2019 in “Progress in Human Geography” Hair significantly shapes body identity and social interactions, influencing how we perceive and relate to our bodies.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
2 citations
,
January 2019 in “Dermatology Review” Pigmented vellus and upright regrowing hairs predict hair regrowth in severe alopecia.
June 2021 in “International journal of research in dermatology” A boy and his father with hereditary hypotrichosis simplex were treated for hair loss, but the treatment result is unknown.
7 citations
,
April 2000 in “Mammalian Genome” A new mutation in mice causes crooked whiskers and messy hair.
2 citations
,
December 2022 in “International journal of molecular sciences” Plucked hairs can be used instead of skin biopsies to study hair traits because they contain specific cells related to hair.
4 citations
,
December 2017 in “American Journal of Dermatopathology” Naked hair shafts are significantly associated with scarring hair loss and may help diagnose it, especially when multiple are found.
48 citations
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January 2002 in “Journal of Structural Biology” Trichocyte filaments have a low-density core and may include proteins for hair structure.
106 citations
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February 2014 in “eLife” Lanceolate complexes in mouse hair follicles are essential for touch and depend on specific cells for maintenance and regeneration.
1 citations
,
January 2018 in “Open Scholarship Institutional Repository (Washington University in St. Louis)” Medieval authors used hair in literature to challenge identity and societal norms.
21 citations
,
July 2010 in “International Journal of Cosmetic Science” Older people's hair becomes less shiny because it gets more uneven and curved.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
1 citations
,
January 2021 in “Pakistan journal of zoology” Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.
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.
5 citations
,
May 2024 in “BMC Genomics” Different genes affect hair length in yaks.
23 citations
,
December 1977 in “Virchows Archiv B Cell Pathology”
September 2023 in “Cells tissues organs” Mice skin matures by day 200, leading to aging signs like curved hair follicles and white hairs due to changes in skin stem cells.
2 citations
,
May 2022 in “Stem cell research & therapy” Disrupted stem cell signals in hairpoor mice cause hair loss.
2 citations
,
May 2012 in “Acta pharmaceutica sinica B” The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
75 citations
,
April 2000 in “Developmental Dynamics” Whn is essential for hair growth, and its malfunction causes hair loss.