14 citations,
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.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
7 citations,
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.
1 citations,
August 2021 in “Frontiers in Genetics” Certain genes related to sulfur metabolism are more active during the growth phase of Cashmere goat wool, and melatonin might help this process.
4 citations,
January 2020 in “Frontiers in Physiology” Good feather growth in poultry needs the right balance of proteins, amino acids, minerals, and vitamins.
38 citations,
May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
15 citations,
January 2016 in “Przeglad Menopauzalny” Eating a balanced diet with specific nutrients is important for menopausal women to manage hair loss.
January 2017 in “Springer eBooks” Eating a balanced diet with specific nutrients can help manage menopause symptoms and prevent related health issues.
29 citations,
December 2017 in “Molecular therapy” Enzyme replacement therapy improved multiple symptoms of homocystinuria in mice.
3 citations,
September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
5 citations,
January 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
November 2022 in “Arab Gulf Journal of Scientific Research” Taurine is important for many body functions and its deficiency can cause health problems.
100 citations,
December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
35 citations,
April 2014 in “Journal of proteomics” Feed restriction in sheep leads to finer wool fibers but may reduce wool quality.
18 citations,
January 1978 in “Advances in experimental medicine and biology” Hair cystine levels may indicate protein malnutrition, but more research is needed.
11 citations,
June 2012 in “Archives of Dermatological Research” L-cystine and vitamin B6 at high doses prevented hair loss in mice treated with a chemotherapy drug.
4 citations,
March 2021 in “International Journal of Dermatology” COVID-19 and related stress may increase hair loss known as Telogen effluvium.
Blocking the Mitochondrial Pyruvate Carrier causes stress in hair follicles, which can be reduced by an ISR inhibitor.
374 citations,
May 2016 in “The Lancet. Diabetes & endocrinology” Cushing's syndrome can cause serious health problems, and early treatment is crucial, but some issues may remain after treatment.
63 citations,
May 2017 in “American Journal of Clinical Dermatology” People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.
41 citations,
March 2007 in “Journal of dermatological science” Taking L-cystine and vitamin B6 can prevent hair loss caused by smoke in mice.
38 citations,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
28 citations,
November 2013 in “The FASEB journal” Mice with CBS deficiency are healthier on a low-methionine diet.
20 citations,
January 2003 in “Journal of oleo science” Chemical treatments and daily stresses damage hair, especially the cuticle layer.
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 2022 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” Uncombable hair syndrome causes frizzy hair and can affect the nervous system, eyes, and ears, often co-occurring with other hair, skin, nail, and teeth conditions, and is linked to three specific gene mutations.
75 citations,
March 2018 in “Molecules/Molecules online/Molecules annual” L-Cysteine may have health benefits, but its effectiveness is still debated due to limited clinical trial data.
16 citations,
March 2015 in “Dermatologic therapy” Zinc supplementation may be an important part of treating severe hair loss.
84 citations,
April 2015 in “Cosmetics” Hair dyes vary in how long they last and how deeply they penetrate hair.
2 citations,
July 2023 in “Life” COVID-19 can cause temporary hair loss, which is commonly reversible with treatment.