October 2023 in “Animal production science” Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
Hairlessness in mammals is caused by combined changes in genes and regulatory regions.
January 2015 in “Indian Dermatology Online Journal” The patient's hair loss is most likely due to diffuse alopecia areata.
September 2014 in “Springer eBooks” Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.
27 citations
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February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
13 citations
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September 2018 in “Scientific Reports” The research found that a complex gene network, controlled by microRNAs, is important for hair growth in cashmere goats.
3 citations
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January 1998 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.
4 citations
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October 2012 in “Archives of Dermatology” Hair diameter diversity is a key sign for diagnosing and managing male pattern baldness.
June 2023 in “The Journal of Family Practice” The hair loss is likely due to a fade haircut.
11 citations
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January 2018 in “Royal Society Open Science” Scientists found genes linked to the growth of high-quality brush hair in Chinese Haimen goats.
3 citations
,
July 2003 in “PubMed” The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
14 citations
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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.
March 2024 in “International journal of molecular sciences” The research identified key proteins that affect wool fiber thickness in Angora rabbits.
1 citations
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May 2024 in “Preprints.org” Rex rabbit fur is best harvested at 120 days for optimal hair density and quality.
2 citations
,
July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
1 citations
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January 2007 in “中国科学通报:英文版” Women's hair has more sulfur, and black hair has more calcium than white hair.
1 citations
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January 2020 in “Indian Dermatology Online Journal” Pigtail hair is a sign of new hair growth and should be recognized in hair loss conditions like acute telogen effluvium.
6 citations
,
January 2016 in “International Journal of Trichology” Taking 1 mg of finasteride daily could potentially treat rare hair conditions like Acquired Progressive Kinking of the Hair and whisker hair.
81 citations
,
December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
46 citations
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August 1977 in “Journal of Morphology” The big-clawed shrew's sinus hair follicles are highly specialized for sensing vibrations.
7 citations
,
January 2017 in “International Journal of Trichology” Chemotherapy and certain hair care practices can cause severe hair matting.
August 2011 in “SpringerReference”
61 citations
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April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
5 citations
,
December 2011 in “Springer eBooks” January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
3 citations
,
December 2021 in “Proteins” Wool fiber curliness is linked to the presence of certain proteins and K38.
38 citations
,
July 1998 in “Journal of surgical oncology” A woman with breast cancer developed a rare condition causing excessive fine hair growth on her face and body.
1 citations
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January 2020 in “Veterinariya Zootekhniya i Biotekhnologiya” Long-haired cats have thinner skin where hair is thicker, and all have unique collagen patterns.
5 citations
,
February 1981 in “Experientia” A new gene causes hairlessness and skin cysts in rats.