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.
9 citations,
October 2008 in “Mutation research” N-acetyl-L-cysteine (NAC) can prevent DNA damage and protect cells from harm.
3 citations,
April 2011 in “Neuropsychiatry” Behavioral therapy, N-acetyl cysteine, and olanzapine may help treat trichotillomania.
71 citations,
August 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Hair keratin-associated proteins are essential for strong hair, with over 80 genes showing specific patterns and variations among people.
65 citations,
September 2014 in “BMC genomics” Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.
62 citations,
January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
51 citations,
January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
38 citations,
May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
36 citations,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
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.
25 citations,
September 2014 in “SpringerPlus” Sheep have a unique gene, KAP8-2, that humans don't have, which may affect wool properties.
25 citations,
December 2011 in “Surface and interface analysis” Bleaching hair causes significant damage by breaking down proteins and fatty acids.
22 citations,
November 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Cystatin M/E helps in the final stages of hair and nail formation by controlling certain enzymes.
20 citations,
July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
18 citations,
January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
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.
15 citations,
January 2016 in “Przeglad Menopauzalny” Eating a balanced diet with specific nutrients is important for menopausal women to manage hair loss.
14 citations,
November 2015 in “Annals of the New York Academy of Sciences” Changing the diet of mice lacking the enzyme CBS can affect symptoms related to the genetic condition.
12 citations,
December 2017 in “Journal of biomaterials science. Polymer ed.” Human hair protein extracts can protect skin cells from oxidative stress.
12 citations,
February 1998 in “Gene” The B2 genes are crucial for hair growth in rats.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
11 citations,
January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
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.
7 citations,
January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
6 citations,
February 2021 in “Proteins” Researchers found that the most reachable bonds in wool fibers are near the ends of certain proteins, which help stabilize the fiber's structure.
6 citations,
October 2016 Understanding how keratin structures in hair are arranged and interact is key for creating methods to extract and purify them.
5 citations,
January 2017 in “Elsevier eBooks” The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.
5 citations,
January 2022 in “Scientific reports” The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.
5 citations,
January 2016 in “Genetics and Molecular Research” Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.
4 citations,
November 2022 in “Journal of biomedical materials research. Part B, Applied biomaterials” Human hair proteins, especially keratins, can protect cells from oxidative stress in lab settings.