February 2023 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ/Tikrit journal of pure science” Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.
January 2023 in “Methods in molecular biology” ROP GTPase helps control the growth of pollen tubes and root hairs by managing cell structure and movement.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
Yak hair stretches mainly due to macromolecules slipping past each other.
January 2006 in “Seibutsu Butsuri” Curly and straight hair differ in how their internal fibers are arranged.
January 1963 in “Stain technology” Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
33 citations,
January 2007 in “Pediatric dermatology” Hair thinning and loss in a girl with a rare metabolic disorder was linked to her condition.
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.
28 citations,
March 2014 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
7 citations,
January 1982 in “Australian Journal of Biological Sciences” Epithelial cells from young rat hair follicles grow and form aggregates in culture, but don't produce hair keratin proteins.
4 citations,
July 2010 in “International Journal of Cosmetic Science” Curved human hair has different structures on its convex and concave sides.
April 2019 in “Journal of the Endocrine Society” A woman with Cushing's syndrome improved after surgery to remove an adrenal tumor.
1 citations,
December 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Sox9 levels in brain stem cells affect whether they stay as stem cells or become neurons.
October 2023 in “IBRO neuroscience reports” Rat hair follicle stem cells have functional oxytocin receptors, useful for studying neuropsychiatric disorders.
50 citations,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
4 citations,
February 2020 in “Cell & tissue research/Cell and tissue research” Hair follicle stem cells might help treat traumatic brain injury.
3 citations,
December 2021 in “Proteins” Wool fiber curliness is linked to the presence of certain proteins and K38.
April 2023 in “Journal of Investigative Dermatology” Psoriasis patients did not show more brain atrophy or small vessel disease than controls, but longer psoriasis duration was linked to more brain atrophy.
201 citations,
November 1964 in “Journal of neurophysiology” The cuneate nucleus has two main neuron types: relay neurons and interneurons.
142 citations,
September 2020 in “Journal of neurophysiology” Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
17 citations,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
16 citations,
October 2014 in “Cell death and disease” FoxN1 overexpression in young mice harms immune cell and skin development.
11 citations,
July 2010 in “Journal of the American Academy of Orthopaedic Surgeons” PRP treatments have shown mixed results for healing, and future research should focus on how PRP is used and which type is used.
9 citations,
January 1981 in “Australian journal of biological sciences” Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.
8 citations,
January 2016 in “Journal of fiber science and technology” Bleaching hair increases cysteic acid levels in a predictable way.
Excessive vitamin A intake caused severe health issues that mostly resolved after stopping the intake.
March 2005 in “Journal of the American Academy of Dermatology” Adding amino acids to damaged hair can improve its strength and appearance.
13 citations,
September 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.