128 citations,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
127 citations,
June 2008 in “British Journal of Clinical Pharmacology” Low doses of some substances can be beneficial, while high doses can be harmful or toxic.
113 citations,
September 2005 in “Journal of Investigative Dermatology” Applying a special compound can promote hair growth without harmful side effects.
112 citations,
January 2014 in “Molecular and cellular therapies” Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.
109 citations,
October 2007 in “Journal of pineal research” Melatonin helps regulate hair growth and protects the hair follicle from stress.
103 citations,
November 2014 in “Journal of Cell Biology” MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.
98 citations,
May 2008 in “British Journal of Dermatology” There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.
98 citations,
December 2003 in “The FASEB Journal” Thymosin β4 promotes hair growth by activating stem cells in hair follicles.
98 citations,
June 2001 in “Journal of biological chemistry/The Journal of biological chemistry” A cluster of sulfur-rich hair protein genes was found on chromosome 17.
97 citations,
March 2002 in “Molecular and cellular biology” Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.
96 citations,
September 2017 in “Analytica Chimica Acta” Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.
92 citations,
June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
91 citations,
August 2015 in “Anais Brasileiros De Dermatologia” Female Pattern Hair Loss affects women's self-esteem and needs more research for better treatment.
91 citations,
July 2004 in “BMJ. British medical journal” The document concludes that molluscum contagiosum is a common, benign skin infection in children, often healing without scarring.
90 citations,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
87 citations,
March 2005 in “Journal of Dermatological Science” Asiasari radix extract promotes hair growth and increases protein synthesis and cell proliferation.
83 citations,
December 2001 in “Journal of Investigative Dermatology” Minoxidil boosts hair growth by targeting adenosine and possibly sulfonylurea receptor 2B.
82 citations,
January 2000 in “Hormone Research in Paediatrics” DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.
81 citations,
May 2007 in “Fertility and Sterility” Testosterone therapy seems safe for postmenopausal women for a few years, but more research is needed for long-term effects.
81 citations,
January 2006 in “Journal of cellular physiology” Mice without the vitamin D receptor gene lose hair due to disrupted hair follicle cycles.
81 citations,
January 2003 in “The FASEB Journal” Follistatin helps hair growth and cycling, while activin prevents it.
77 citations,
July 2020 in “Cell” Muscles and nerves that cause goosebumps also help control hair growth.
77 citations,
April 2016 in “Science Advances” Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.
76 citations,
May 2011 in “Cell death and differentiation” A20 protein is crucial for normal skin and hair development.
75 citations,
October 2010 in “Mammalian genome” Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.
75 citations,
November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
74 citations,
January 2006 in “The journal of investigative dermatology/Journal of investigative dermatology” Mutations in the DSG4 gene can cause a rare hair disorder similar to monilethrix.
74 citations,
October 1998 in “Journal of biological chemistry/The Journal of biological chemistry” The 190-kbp domain contains all human type I hair keratin genes, showing their organization and evolution.
72 citations,
July 2012 in “Journal of Investigative Dermatology” Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.
72 citations,
June 2001 in “Journal of Investigative Dermatology” S100A4 and S100A6 proteins may activate stem cells for hair follicle regeneration and could be potential targets for hair loss treatments.