7 citations
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January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
6 citations
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January 2015 in “Journal of clinical & experimental dermatology research” The combination therapy may be more effective for mild alopecia areata, especially in patients with allergies.
3 citations
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January 1982 in “Australian journal of biological sciences” Ethionine significantly inhibits wool growth in sheep but not hair growth in mice or rats.
January 2013 in “Heilongjiang xumu shouyi” The compound additive improved growth and fur quality in blue foxes.
28 citations
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November 2013 in “The FASEB journal” Mice with CBS deficiency are healthier on a low-methionine diet.
19 citations
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July 2015 in “Journal of inherited metabolic disease” Methionine restriction works better than betaine for treating CBS deficiency symptoms in mice.
32 citations
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November 2020 in “UNC Libraries” A point mutation in the androgen receptor gene causes complete androgen insensitivity.
55 citations
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February 1990 in “Journal of Nutrition” Selenium in hair and nails is higher with L-selenomethionine and low methionine.
14 citations
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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.
5 citations
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May 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
11 citations
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September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
3 citations
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January 2024 in “In Vivo” Methionine is essential for hair maintenance in C57BL/6 mice.
1308 citations
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March 1998 in “Journal of bone and mineral research” The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.
36 citations
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January 2017 in “Journal of Obstetrics and Gynaecology Research” The review found no clear link between vitamin D receptor gene variations and polycystic ovary syndrome.
11 citations
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February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
October 2025 in “HAL (Le Centre pour la Communication Scientifique Directe)” Variegated coat color in cats is linked to the Silver locus.
20 citations
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March 2013 in “Journal of Lipid Research” The research explains how a human enzyme binds and processes its substrate, which could relate to its role in biological functions and hair loss.
4 citations
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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.
50 citations
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September 2009 in “Molecular Genetics and Metabolism” A new gene mutation causes vitamin D resistance and rickets, treatable with calcium therapy.
9 citations
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January 2006 in “Cutaneous and ocular toxicology” L-cystine, D-pantothenat, and miliacin together significantly boost keratinocyte growth and metabolism.
126 citations
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January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
14 citations
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April 2000 in “Animal Science/Animal science” Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.
7 citations
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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.
5 citations
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July 2017 in “International journal of endocrinology and metabolism/International journal of endocrinology and metabolism.” Two siblings with a genetic mutation had a form of rickets that doesn't respond to vitamin D.
2 citations
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June 2016 in “Journal of skin and stem cell” Wet cupping blood has different components than regular venous blood, which might affect skin disorder treatments.
1 citations
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March 2014 in “Senses and Sciences” A supplement with Serenoa repens improved hair loss in a patient.
July 2018 in “International journal of clinical & experimental dermatology” Eat a balanced diet for healthy hair; only use supplements if you have a proven nutrient deficiency.
276 citations
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April 2003 in “Molecular endocrinology” Vitamin D is important for bones, hair, blood pressure, and breast development.
258 citations
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July 2016 in “Reproductive Biology and Endocrinology” The document concludes that insulin resistance is key in PCOS development and early treatment is crucial to prevent complications.
215 citations
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September 2003 in “Journal of Biological Chemistry” Vitamin D receptor and hairless protein are essential for hair growth.