March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
1 citations
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March 2022 in “Journal of biological chemistry/The Journal of biological chemistry” Removing a specific gene in certain skin cells causes hair loss in mice by disrupting hair follicle development.
43 citations
,
August 1994 in “Journal of Investigative Dermatology” May 2023 in “Elsevier eBooks”
June 2013 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Wnt ligand secretion by hair follicle cells is essential for hair growth and repair.
February 2018 in “Medical Hypotheses” Male pattern hair loss may have evolved to promote younger fathers for offspring health and survival, encouraging monogamy and paternal nurturing.
12 citations
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December 2003 in “Gene” The ovine Hoxc-13 gene is crucial for hair formation and may have other skin functions.
January 2022 in “The Pan African medical journal” Hypertrichosis causes excessive hair growth and needs psychological support due to its impact on self-esteem.
July 2023 in “Veterinary pathology” White-tailed deer can get a hair loss condition that might make them more vulnerable to environmental threats.
December 2011 in “URMIA MEDICAL JOURNAL” Glycoconjugate sugars are important for hair follicle development.
January 2016 in “Case reports in clinical medicine” A 6-year-old girl was diagnosed with a rare hair disorder called monilethrix.
19 citations
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
3 citations
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May 2007 in “Clinical and Experimental Dermatology” Hair does not prevent acne.
745 citations
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February 1992 in “Trends in genetics” Hair follicles create different cell layers and proteins, controlled by various molecules.
September 2023 in “Cutis” A baby girl has a hair disorder called monilethrix, causing fragile hair that may improve over time.
January 2022 in “Journal of clinical and diagnostic research” A rare skin bump with tiny hairs was successfully removed from a man's face.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” The study concluded that a 'Swiss cheese' pattern in hair follicles is a useful sign for diagnosing alopecia areata.
October 2018 in “Deep Blue (University of Michigan)” Hair follicle development involves specific cells and genes, crucial for understanding severe skin diseases like harlequin ichthyosis.
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.
82 citations
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November 1959 in “Annals of the New York Academy of Sciences” 8 citations
,
September 1975 in “Journal of Animal Science” Moose hair can track past mineral levels, except zinc.
January 2025 in “SSRN Electronic Journal” 1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
November 2013 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Keratin 79 cells help form and regenerate hair canals.
August 2012 in “Nature Cell Biology” Hair grows when stem cell offspring in the follicle base proliferate, influenced by the dermal papilla.
835 citations
,
October 2008 in “Nature Genetics” Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.
September 2020 in “Research Square (Research Square)” Researchers found that certain RNA sequences play a role in yak hair growth and these sequences are somewhat similar to those in cashmere goats.
191 citations
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November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.