40 citations,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
40 citations,
July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
40 citations,
June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
36 citations,
January 2004 in “European journal of cell biology” Without keratin 10, there's more growth and development of oil-producing skin cells.
35 citations,
June 2012 in “PloS one” Keratin 15 expression in skin cells is regulated by two mechanisms involving PKC/AP-1 and FOXM1.
34 citations,
August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
32 citations,
April 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Loss of keratin K2 causes skin problems and inflammation.
30 citations,
December 2011 in “Journal of biological chemistry/The Journal of biological chemistry” Keratin 17 is modified by RSK1 in response to growth and stress, affecting skin growth and stress response.
29 citations,
November 2011 in “Veterinary pathology” The study found that mouse sweat glands develop before birth, mature after birth, and have specific keratin patterns.
29 citations,
August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
27 citations,
November 2007 in “Genomics” Mutations in specific keratin genes cause improper hair structure in mice due to faulty keratin protein assembly.
27 citations,
June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.
27 citations,
September 2017 in “Journal of Medicinal Food” Annurca apple supplement safely increases hair growth and keratin in humans.
25 citations,
November 2020 in “Experimental eye research/Experimental Eye Research” Different types of cells in the eye express specific keratins at various stages of development.
24 citations,
April 2017 in “Oncology Reports” The hair keratin gene KRT81 is found in both normal and breast cancer cells and helps them invade surrounding tissues.
24 citations,
February 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Two new proteins, hKAP1.6 and hKAP1.7, are found in the hair follicle cortex.
23 citations,
January 2015 in “Stem cells international” Coating surfaces with human hair keratin improves the growth and consistency of important stem cells for medical use.
20 citations,
September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
20 citations,
December 2012 in “Journal of molecular structure” The study found that thioglycolic acid breaks down hair bonds more consistently than l-cysteine, which is less damaging to hair.
20 citations,
January 1995 in “Cells tissues organs” Changing light periods synchronized wool growth cycles in sheep.
19 citations,
December 2015 in “Journal of Investigative Dermatology” The protein p53 directly reduces the production of Keratin 17, a skin and hair protein, in rats with radiation dermatitis.
18 citations,
December 2010 in “Journal of analytical atomic spectrometry” A new method accurately measures lead levels in hair to assess exposure.
18 citations,
October 2018 in “Nutrients” Annurca apple extract promotes hair growth by changing hair follicle metabolism to boost keratin production.
17 citations,
July 2018 in “International Journal of Cosmetic Science” Keratin-based particles safely improve hair strength, smoothness, and heat protection.
17 citations,
November 2017 in “Asian-Australasian journal of animal sciences” Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.
17 citations,
June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Mutations in hKAP1 genes may cause hereditary hair disorders.
16 citations,
January 2018 in “Advances in experimental medicine and biology” Hair and wool have diverse keratins and keratin-associated proteins.
16 citations,
January 2017 in “Physical chemistry chemical physics/PCCP. Physical chemistry chemical physics” The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.
16 citations,
October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.
15 citations,
January 2018 in “Advances in experimental medicine and biology” Keratin proteins are crucial for hair growth and structure.