53 citations
,
May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
2 citations
,
March 2016 in “Serbian Journal of Dermatology and Venerology” A six-year-old boy with excessive hair growth and other symptoms may have a genetic link on chromosome 17q, requiring regular medical follow-ups.
30 citations
,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
2 citations
,
October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
March 2012 in “Journal of The American Academy of Dermatology” Dermoscopy helps diagnose different hair loss conditions, and characteristics vary among ethnicities and individual cases.
3 citations
,
June 2017 in “Medical lasers” A treatment combining laser energy and injections improved hair loss and unexpectedly also reduced hair graying.
95 citations
,
January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
22 citations
,
July 2003 in “Military medicine” New treatments are available for managing ingrown hair inflammation.
13 citations
,
December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
September 1973 in “Primates” 1 citations
,
January 2018 in “Jornal Brasileiro de Patologia e Medicina Laboratorial” Monilethrix causes brittle hair and hair loss, and it runs in families.
6 citations
,
March 2015 in “Journal of The American Academy of Dermatology” Hair dye can make it hard to diagnose scalp conditions correctly.
6 citations
,
July 2018 in “Advances in Clinical and Experimental Medicine” Different body parts have varying levels of certain hair follicle markers.
9 citations
,
July 1982 in “International Journal of Dermatology” A 31-year-old man's hair turned white suddenly, likely due to alopecia areata.
September 2021 in “Mağallaẗ al-Muẖtar li-l-ʿulūm” Two sisters have rare hair disorders causing short, fragile, kinky hair.
3 citations
,
January 1966 in “PubMed” December 2020 in “Dermatology practical & conceptual” Trichoscopy helped diagnose a teenage girl's hair loss as monilethrix.
1 citations
,
January 1971 Hormones, especially androgens, affect hair growth and can cause hair loss or excess hair in both men and women.
January 2016 in “프로그램북(구 초록집)” Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.
72 citations
,
December 1996 in “Journal of Investigative Dermatology” Human hair follicles can regenerate after removal, but with low success rate.
152 citations
,
December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
27 citations
,
September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.
82 citations
,
May 2005 in “Dermatologic therapy” Laser hair removal has advanced to effectively reduce hair for various skin types and hair colors.
July 2015 in “Cambridge University Press eBooks” The document concludes that treatments for female hair loss and excess body hair are available, but managing expectations is important.
7 citations
,
March 2005 in “Journal of dermatological science” Apoptosis helps shape hair growth and prepares the skin for hair to emerge.
19 citations
,
October 1985 in “British Journal of Dermatology” The document concludes that unruly hair can be congenital or acquired, often lacks specific treatments, and can be managed with oils and short hairstyles.
15 citations
,
December 2021 in “Nature Communications” Androgens in female meerkats influence aggression and dominance, affecting social dynamics and offspring behavior.
14 citations
,
January 2016 in “Experimental Dermatology” Hair regrowth doesn't convert thin hairs to thick hairs, but increases overall hair density.
59 citations
,
August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
264 citations
,
October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.