Hedgehog signaling can create new hair follicles but may also cause tumors.
211 citations
,
February 1994 in “Proceedings of the National Academy of Sciences” Too much parathyroid hormone-related protein in skin disrupts hair growth in mice.
92 citations
,
April 2009 in “Journal of Investigative Dermatology” The Celsr1 gene is crucial for normal hair patterning in mice.
January 2011 in “대한피부과학회지” A 7-year-old girl was diagnosed with trichothiodystrophy due to low sulfur levels in her hair.
September 2025 in “Brazilian Journal of Health Review” Early diagnosis and less aggressive hair care improve outcomes for Black women with frontal fibrosing alopecia.
62 citations
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December 1941 in “Experimental biology and medicine” Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.
Beta vulgaris L. fruit extracts, especially ethanolic, effectively promote hair growth.
21 citations
,
June 1992 in “Pediatric Dermatology” Eruptive vellus hair cysts are often underreported and need histologic confirmation for accurate diagnosis.
2 citations
,
January 2010 in “PubMed” Current treatments for postmenopausal frontal fibrosing alopecia stop hair loss but don't regrow hair.
7 citations
,
June 2020 in “Experimental dermatology” Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.
Hairless mammals evolved quickly in both gene and non-gene areas related to skin and hair.
24 citations
,
November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
1 citations
,
January 1963 in “The Anatomical Record” Glyceride levels in mouse skin are higher during hair growth.
1 citations
,
October 2020 in “Research Square (Research Square)” A genetic variant in goats is linked to cashmere growth.
1 citations
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October 2022 in “Annals of Translational Medicine” Cucurbitacin helps mice grow hair by blocking a protein that stops hair growth.
October 2021 in “Research Square (Research Square)” Hair follicle stem cells in hairpoor mice are disrupted, causing hair loss.
2 citations
,
July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
November 2023 in “Indian Journal of Dermatology” The study found that Frontal Fibrosing Alopecia in North-East India mainly affects middle-aged women and is often associated with lichen planus pigmentosus.
7 citations
,
August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
February 2024 in “Frontiers in plant science” Peps help Arabidopsis plants grow more root hairs by affecting specific genes and calcium signaling.
2 citations
,
January 2007 in “Actas Dermo-Sifiliográficas” Two cases of hairy elbows syndrome were described, with normal skin texture and symmetrical hair growth.
February 2013 in “Journal of the American Academy of Dermatology” January 2024 in “Veterinary Science and Medicine Journal” The Pomeranian recovered well after treatment for pneumonia and demodecosis.
January 2018 in “대한미용학회지” White hair is denser and more hydrophobic than black hair.
July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
26 citations
,
September 1990 in “Ophthalmology” The study found no common cause for a girl's crystalline cataract and uncombable hair, suggesting their co-occurrence might be coincidental.
14 citations
,
January 2015 in “Genetics and molecular research” The transition from growth to regression in Cashmere goat hair follicles involves changes in expression of genes related to keratin and cell differentiation.
Knocking out the FGF5 gene in sheep increased wool production and hair-follicle density.
30 citations
,
July 2010 in “Experimental Dermatology” Polyamines are important for hair growth, but more research is needed to understand their functions and treatment potential.
48 citations
,
February 2010 in “Molecular biology reports” KAP7.1 and KAP8.2 genes are crucial for cashmere quality in goats.