May 2021 in “Journal of the Endocrine Society” A woman's hair loss and other symptoms were due to a rare hormone deficiency treatable with steroids.
November 2022 in “Journal of Investigative Dermatology” Blocking mTORC1 activity could increase hair pigmentation and potentially reverse greying.
53 citations
,
June 1993 in “Proceedings of the National Academy of Sciences of the United States of America” LY191704 is a compound that effectively blocks a specific enzyme involved in hormone conversion and could help treat enlarged prostate and hair loss.
September 2025 in “Science Advances” PADI4 enzyme slows down cell growth in developing hair follicles.
June 2026 in “Frontiers in Cell and Developmental Biology” LHX2 is crucial for development, tissue repair, and preventing diseases.
26 citations
,
October 1998 in “Experimental Dermatology” A keratin hHb6 mutation causes a hair disorder with varying severity, influenced by other factors.
46 citations
,
December 1992 in “The Journal of Steroid Biochemistry and Molecular Biology” Affected males are born with ambiguous genitalia, raised as females, but develop male traits at puberty due to enzyme deficiency.
December 2022 in “Biochemical and Biophysical Research Communications” HtrA2 activity is crucial for normal hair growth by regulating fat cell development.
Thymosin β4 helps with healing, inflammation, and organ protection.
August 2023 in “Dermatology Reports” Acne not improved by usual treatments may indicate a genetic disorder.
7 citations
,
February 2011 in “Journal of dermatology” The 736T>A mutation in the LIPH gene is common in Japanese people with autosomal recessive woolly hair.
115 citations
,
March 2001 in “Baillière's best practice and research in clinical endocrinology and metabolism/Baillière's best practice & research. Clinical endocrinology & metabolism” Key enzymes control androgen levels, affecting hormone activity and potential treatments.
18 citations
,
November 2005 in “Archives of Dermatological Research”
49 citations
,
August 2018 in “International Journal of Dermatology” Topical JAK inhibitors may help treat alopecia universalis by promoting hair regrowth.
32 citations
,
February 2019 in “Journal of neurochemistry” Sex hormones affect brain injury differently in males and females.
14 citations
,
April 2005 in “Experimental Dermatology” Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
3 citations
,
November 1998 in “PubMed” January 2026 in “Journal of Materials Chemistry B” A special solvent helps hydroxytyrosol penetrate skin better, promoting hair growth.
42 citations
,
July 2010 in “European Journal of Cell Biology” Thyroid hormones affect hair follicle stem cells by promoting differentiation and reducing growth.
1 citations
,
April 2016 in “Journal of Investigative Dermatology” Prostaglandin D2 increases testosterone levels in skin cells through reactive oxygen species, not enzymes, which could lead to new hair loss treatments.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Hemoglobin α acts as an antioxidant in skin cells, especially protecting hair follicle stem cells from UV damage.
41 citations
,
March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
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.
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Tet1/2/3 enzymes affect hair follicle cell development by influencing BMP signaling.
1 citations
,
April 2018 in “Journal of Investigative Dermatology” Fzd2 is important for skin and hair development through various signaling ways.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a new way UVB light increases skin pigmentation through the ATP-P2X7 pathway.
10 citations
,
May 1974 in “American journal of diseases of children” The girl had a rare disorder causing mental and physical symptoms, with weak hair and unclear neurological issues.
111 citations
,
April 2000 in “British journal of dermatology/British journal of dermatology, Supplement” Thyroid hormone receptor β1 is found in human hair follicles and helps them survive.
72 citations
,
May 1993 in “The Journal of Cell Biology” Trichohyalin in sheep hair follicles may help with structure and calcium binding.
56 citations
,
December 2002 in “The Journal of Clinical Endocrinology & Metabolism” Human bone cells mainly produce a type 1 enzyme that may help regulate bone health.