1 citations,
July 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
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.
62 citations,
December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
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.
3 citations,
December 2018 in “Routledge eBooks” Hair is made of strong keratin fibers that protect against the environment.
25 citations,
May 1994 in “Journal of Investigative Dermatology” Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.
7 citations,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
Yak hair stretches mainly due to macromolecules slipping past each other.
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.
33 citations,
January 2007 in “Pediatric dermatology” Hair thinning and loss in a girl with a rare metabolic disorder was linked to her condition.
April 2019 in “Journal of the Endocrine Society” A woman with Cushing's syndrome improved after surgery to remove an adrenal tumor.
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.
4 citations,
July 2010 in “International Journal of Cosmetic Science” Curved human hair has different structures on its convex and concave sides.
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.
May 2021 in “Journal of the Endocrine Society” The case shows the importance of quick and thorough evaluation of adrenal tumors to prevent rapid disease progression and poor outcomes.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
13 citations,
September 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
2 citations,
July 2016 in “Pharmacopsychiatry” A person with Turner Syndrome showed severe schizophrenia that didn't respond to treatment and had brain shrinkage.
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.
1 citations,
December 2022 in “Biomolecules & therapeutics” Minoxidil may help reduce aging effects in brain cells.
12 citations,
October 1996 in “Dermatologic clinics” Advances in genetics may lead to targeted treatments for hair disorders.
October 2023 in “IBRO neuroscience reports” Rat hair follicle stem cells have functional oxytocin receptors, useful for studying neuropsychiatric disorders.
8 citations,
August 2007 in “Histopathology” Different growth patterns in thyroid tumors are influenced by where cell growth and death occur.
Oral contraceptives may cause significant hair loss in women.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
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.
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.
Excessive vitamin A intake caused severe health issues that mostly resolved after stopping the intake.