3 citations,
February 2023 in “ACS omega” Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.
3 citations,
January 2019 in “International Journal of Trichology” The balance of thiol-disulfide in women with hair loss is affected but not damaged.
2 citations,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
2 citations,
February 2023 in “International journal of molecular sciences” Body hairs can be used in forensic science and toxicology like scalp hair.
67 citations,
December 1990 in “The journal of cell biology/The Journal of cell biology” Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.
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.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
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.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
28 citations,
December 2011 in “Biocatalysis and biotransformation” PDI helps restore over-bleached hair's strength and structure by attaching special peptides.
40 citations,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” S100A3 protein is crucial for hair shaft formation in mice.
36 citations,
November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
17 citations,
December 2002 in “Biochemical and biophysical research communications” Scientists found out how a specific protein in human hair cuticles behaves and is structured.
4 citations,
December 2013 in “Acupuncture and related therapies” N-acetyl-cysteine shows promise in treating various diseases and may improve skin and hair conditions, but more research is needed on dosages and long-term effects.
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.
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 1992 in “Sen'i Gakkaishi” The Cell Membrane Complex in hair has both water-attracting and water-repelling layers.
12 citations,
December 2017 in “Journal of biomaterials science. Polymer ed.” Human hair protein extracts can protect skin cells from oxidative stress.
4 citations,
December 2018 in “Macedonian Journal of Chemistry and Chemical Engineering” A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
83 citations,
July 2008 in “Current Opinion in Chemical Biology” The document concludes that understanding sulfation biology is crucial for creating treatments due to its importance in biological functions and disease.
11 citations,
February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
62 citations,
December 2007 in “Journal of biological chemistry/The Journal of biological chemistry” A specific chemical change in the S100A3 protein leads to the formation of a four-part structure important for hair formation.
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.
7 citations,
November 2010 in “Genesis” Mouse Scube3 affects teeth, tongue, vibrissae, and eye development, but not facial structure or limb growth.
7 citations,
January 2003 in “Elsevier eBooks” Testosterone is crucial for development, growth, and various body functions in mammals.
9 citations,
August 2005 in “Experimental Dermatology” Modified pep7, named EPM peptide, effectively promotes hair growth at low concentrations and works well with minoxidil.
47 citations,
January 2017 in “RSC Advances” Keratin peptides can change hair shape gently without harsh chemicals.
22 citations,
December 2016 in “PloS one” A specific protein in chicken embryos links early skin layers to feather development.
3 citations,
November 2014 in “Protein Expression and Purification” Scientists successfully purified a protein called Wnt3a, which is involved in processes like hair growth, but the overall yield was low, suggesting more work is needed to improve this.
1 citations,
June 2023 in “Biomolecules & therapeutics” Nitric oxide is important for skin functions and both helps protect against and contributes to skin inflammation and sensitization.