4 citations
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January 1976 in “Archives of Dermatological Research” Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.
8 citations
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July 2015 in “International Journal of Dermatology” A new DSG4 gene mutation causes hair defects in a young girl.
1 citations
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October 2000 in “Journal of Investigative Dermatology” The Thr1022Ala variant in the hairless gene is not a disease-causing mutation.
December 2025 in “Universal library of medical and health sciences.” Amino acids like arginine and cysteine protect hair during chemical treatments, keeping it strong and less brittle.
10 citations
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November 2018 in “Genetics in medicine” Lack of cystatin M/E causes thin hair and dry skin.
1 citations
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July 2022 in “Clinical and Experimental Dermatology” Amino acid supplements may not be necessary for all women with chronic hair loss.
July 2025 in “Frontiers in Medicine” Mutations in the LIPH gene cause woolly hair in a child.
April 2012 in “KSBB Journal” Minoxidil analogs can be improved for hair growth inhibition by modifying specific parts of their structure.
47 citations
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September 2002 in “Journal of Bone and Mineral Research” A mutation in the vitamin D receptor causes severe resistance to vitamin D, affecting bone health but not hair growth.
15 citations
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October 1970 in “Archives of disease in childhood” Hair amino acid levels can indicate metabolic disorders.
100 citations
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March 2006 in “Journal of biological chemistry/The Journal of biological chemistry” Cystatin M/E strongly inhibits cathepsin V and cathepsin L, important for skin formation.
2 citations
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April 2008 in “PubMed” A gene mutation causes monilethrix in a Chinese family.
36 citations
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January 2019 in “Nature communications” High lactate dehydrogenase activity is not necessary for the growth of squamous cell carcinoma.
1 citations
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January 1996 Cysteine and arginine are essential for hair growth and thickness.
4 citations
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January 2017 in “Journal of pediatric endocrinology & metabolism/Journal of pediatric endocrinology and metabolism” Two different mutations in the vitamin D receptor gene cause different symptoms and responses to treatment in Lebanese patients with hereditary rickets.
April 1974 in “Pediatric Research” The Naked (N) trait in mice is linked to lower glycine and tyrosine in hair proteins.
11 citations
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January 2015 in “JOURNAL OF HEALTH SCIENCE” A 12-year-old boy's rare skin condition improved with topical treatments and may resolve by puberty.
July 2024 in “Journal of Investigative Dermatology” A KLK5 inhibitor effectively improved skin symptoms in a mouse model of Netherton Syndrome.
November 2022 in “Gigascience” A specific genetic deletion in goats affects cashmere yield and thickness.
September 2025 in “Indian Journal of Dermatology” A Turkish woman has a hair condition caused by a LIPH gene mutation.
7 citations
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March 2012 in “European Journal of Pediatrics” A boy with a rare skin condition and kidney disease improved with cyclosporine after steroids failed, suggesting a new treatment approach.
33 citations
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September 2017 in “Journal of Investigative Dermatology” A mutation in the KRT25 gene causes woolly hair and hair loss.
56 citations
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October 2007 in “Journal of Biological Chemistry” Cathepsin L is essential for heart health and its absence causes heart problems and hair loss.
1 citations
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July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.
2 citations
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August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
80 citations
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June 2002 in “Molecular Biology of the Cell” Type II keratins are uniquely phosphorylated during stress and mitosis, affecting their structure and function.
10 citations
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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.
November 2025 in “Clinical Cosmetic and Investigational Dermatology” LIPH mutations cause woolly hair in some Chinese people.
37 citations
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June 2000 in “Experimental dermatology” The Lanceolate hair-J mutation in mice mimics human hair disorders like Netherton's syndrome.
March 1990 in “Journal of Dermatological Science”