25 citations
,
January 2013 in “Colloids and surfaces. B, Biointerfaces” Hair dye colors mainly target melanin granules in black hair.
33 citations
,
August 2013 in “British Journal of Dermatology” Lack of small, fine hair on the front hairline is a key sign of frontal fibrosing alopecia.
25 citations
,
November 2014 in “British Journal of Dermatology” Certain transporters are found in human hair follicles and may affect hair growth and loss.
June 2023 in “JAAD case reports” The document concludes that "hot comb alopecia" is now called "central cicatricial centrifugal alopecia" and its causes are complex.
16 citations
,
November 2017 in “British Journal of Dermatology” Cells in hair die by breaking down their DNA and mitochondria as they form keratin.
18 citations
,
June 1992 in “Acta Histochemica” Human hair follicles have a unique cell distribution and differentiation pattern during growth.
39 citations
,
March 2009 in “Dermatology Online Journal” Erlotinib can cause persistent excessive hair growth.
43 citations
,
August 2008 in “Regenerative Medicine” Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.
5 citations
,
November 2015 in “International Journal of Radiation Biology” Gamma-ray exposure can cause long-lasting damage to hair follicles, affecting hair structure and color.
31 citations
,
March 2017 in “Journal of The American Academy of Dermatology” Some breast cancer patients developed permanent hair loss after chemotherapy and hormonal therapy, showing patterns similar to common baldness and alopecia areata.
39 citations
,
November 2007 in “Experimental dermatology” Human hair follicles contain a complex network of prostanoid receptors that may influence hair growth.
1 citations
,
January 2007 in “AIP conference proceedings” High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
45 citations
,
December 2004 in “Forensic Science International” Laser microdissection helps get DNA from single hair follicles for better forensic analysis.
Hair shaft characteristics can affect mitochondrial DNA metrics, but more research is needed.
71 citations
,
June 1993 in “Journal of Investigative Dermatology” 6 citations
,
February 2013 in “British Journal of Dermatology” Androgens significantly regulate hair keratin K37 expression.
January 2005 in “Chinese Journal of Veterinary” Hairless mice lose hair by 3-4 weeks, develop thicker, folded skin, and show pigmentation differences.
5 citations
,
January 2005 in “PubMed” Apoptosis is important in the hair cycle of dogs.
7 citations
,
January 2013 in “Indian Journal of Plastic Surgery” Body and beard hair can be used for hair transplants in baldness treatment but keep their original color and curl.
4 citations
,
January 2014 in “Indian dermatology online journal” Monilethrix is a genetic hair disorder causing fragile, beaded hair with no effective treatment.
18 citations
,
November 2005 in “Archives of Dermatological Research” November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Apoptotic cells may trigger cell death in hair follicles during their regression cycle.
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.
April 2023 in “Journal of Investigative Dermatology” Hair growth is driven by cells that move and change like a conveyor belt.
4 citations
,
April 2013 in “Actas Dermo-Sifiliográficas” Most Spanish Caucasian women have a widow's peak, and their hormone levels suggest they process certain hormones faster.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Tet2 and Tet3 enzymes are important for controlling hair growth and shape by affecting gene activity and DNA structure in hair follicles.
22 citations
,
July 2012 in “International Journal of Trichology” Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.
10 citations
,
January 2019 in “Skin Research and Technology” Southern Chinese women with female pattern hair loss have less, thinner hair and smaller hair follicles.