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January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
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January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
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August 2007 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.
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October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
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July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
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January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
January 2016 in “Zurich Open Repository and Archive (University of Zurich)” Dietary L-serine supplementation can reduce symptoms of HSAN1 by lowering harmful 1-deoxySL levels.
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December 1965 in “The Lancet” Argininosuccinic aciduria can cause hair loss.
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October 2011 L-Lysine may help with various health conditions, but results are inconsistent for herpes treatment and its potential in other therapies is still being explored.
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February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
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August 1991 in “American Journal of Medical Genetics” A special diet can fix hair problems in argininosuccinase deficiency.
September 2008 in “Pediatric Rheumatology” Two children with lysinuric protein intolerance showed symptoms similar to lupus.
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October 1970 in “Archives of disease in childhood” Hair amino acid levels can indicate metabolic disorders.
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April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.
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April 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genetic changes in the LSS gene cause a rare skin and hair condition.
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August 2021 in “Journal of Investigative Dermatology” ASLAN004 was safe and well-tolerated, supporting further development for treating certain diseases.
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August 2010 in “The American journal of pathology” Researchers created a new mouse model for studying Citrullinemia Type I and similar conditions, showing symptoms and treatment responses like those in humans.
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January 1959 in “The journal of nutrition/The Journal of nutrition” Higher potassium intake may protect against hair loss and liver fat in lysine-deficient rats.
July 2022 in “Journal of Investigative Dermatology” Arg1+ macrophages may play a role in Alopecia Areata, offering new treatment targets.
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February 2011 in “Journal of dermatology” The 736T>A mutation in the LIPH gene is common in Japanese people with autosomal recessive woolly hair.
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May 1974 in “American journal of diseases of children” The girl had a rare disorder causing mental and physical symptoms, with weak hair and unclear neurological issues.
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January 1996 Cysteine and arginine are essential for hair growth and thickness.
February 2019 in “Neoreviews” The infant with a urea cycle disorder improved with treatment and a liver transplant.
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November 1963 in “Journal of Histochemistry & Cytochemistry” Arginine converts to citrulline in hair follicles as proteins harden.
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April 2016 in “Journal of The American Academy of Dermatology” A patient with advanced kidney cancer and no hepatitis C developed skin inflammation due to a drug called interferon alpha-2a.
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October 2012 in “Journal of child neurology” The same genetic mutation in Sjögren-Larsson syndrome can lead to different levels of severity, suggesting other factors influence the symptoms.
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July 2019 in “PLOS ONE” Certain genetic variations are linked to higher liver enzyme levels in patients treated for chronic hepatitis C with specific drugs.