8 citations,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
April 2024 in “Advances in Redox Research” Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.
2 citations,
October 2021 in “JID innovations” Uterine leiomyomas don't significantly change gene expression in the scalp of people with Central Centrifugal Cicatricial Alopecia.
38 citations,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
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.
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.
40 citations,
July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
28 citations,
October 2011 in “International Journal of Molecular Medicine” Adenosine helps hair grow longer and stronger by boosting certain growth factors and signaling pathways.
3 citations,
October 2022 in “PloS one” Scientists have developed a method to keep chicken feather follicles alive and structurally intact in a lab for up to a week.
January 2025 in “International Journal of Advanced Research in Science Communication and Technology” Polyherbal hair dyes are safer and more eco-friendly than chemical dyes.
517 citations,
February 2010 in “Materials” Keratin from hair and wool is used in medical materials for healing and drug delivery.
91 citations,
December 2000 in “The journal of cell biology/The Journal of cell biology” Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
8 citations,
January 2023 in “International journal of molecular sciences” Transglutaminase activity is important for skin and is found in both mammals and birds.
375 citations,
June 2013 in “Biochimica et biophysica acta. Molecular cell research” Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
76 citations,
December 2011 in “Journal of Cell Science” Different keratin types have unique amino acid patterns that are evolutionarily conserved.
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.
January 2014 in “International Journal of Trichology” Hair is culturally and economically valuable, and its weight is now used to measure the effectiveness of hair growth treatments.
11 citations,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
The research developed a human hair keratin and silver ion hydrogel that could help heal wounds.
4 citations,
January 2014 in “Indian dermatology online journal” Monilethrix is a genetic hair disorder causing fragile, beaded hair with no effective treatment.
January 2024 in “Molecules (Basel. Online)” Juglone from walnut extracts may help repair damaged hair.
9 citations,
January 2006 in “Cutaneous and ocular toxicology” L-cystine, D-pantothenat, and miliacin together significantly boost keratinocyte growth and metabolism.
54 citations,
November 2015 in “Methods in enzymology on CD-ROM/Methods in enzymology” Keratins are important for skin cell health and their problems can cause diseases.
28 citations,
April 1996 in “Cell biology international” Changes in keratin affect skin health and can lead to skin disorders like blistering diseases and psoriasis.
19 citations,
January 2012 in “International Journal of Trichology” Propionibacterium acnes might be linked to hair casts and possibly alopecia.
17 citations,
August 2018 in “BMC Genomics” The HOXC13 gene affects different hair proteins in cashmere goats in varied ways and is controlled by a feedback loop and other factors.
16 citations,
July 2013 in “The American Journal of Dermatopathology” Pigmented casts are common in several hair loss conditions and can help diagnose specific types of alopecia.
7 citations,
December 2020 in “ACS biomaterials science & engineering” Human hair keratins can form stable nanofiber networks that might help in tissue regeneration.