5 citations,
January 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
258 citations,
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.
305 citations,
March 2008 in “AJP Endocrinology and Metabolism” SSAT is a key enzyme affecting cell growth and metabolism, with potential but risky use in disease treatment.
30 citations,
January 2023 in “EFSA journal” Adults should not consume more than 255 micrograms of selenium per day to avoid risk of hair loss and other side effects.
11 citations,
July 2021 in “Genetics selection evolution” Researchers found genes and genetic variants linked to sheep wool and skin wrinkles.
July 2023 in “Developmental medicine and child neurology/Developmental medicine & child neurology” DFMO treatment improves hair growth, muscle tone, and development in Bachmann-Bupp syndrome patients.
30 citations,
July 2010 in “Experimental Dermatology” Polyamines are important for hair growth, but more research is needed to understand their functions and treatment potential.
1 citations,
July 2017 in “Microbial Cell Factories” Adding soybean oil to Nonomuraea dietziae increases production of a beneficial compound by improving metabolism and enzyme systems.
28 citations,
November 2013 in “The FASEB journal” Mice with CBS deficiency are healthier on a low-methionine diet.
19 citations,
July 2015 in “Journal of inherited metabolic disease” Methionine restriction works better than betaine for treating CBS deficiency symptoms in mice.
11 citations,
February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
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.
3 citations,
January 1982 in “Australian journal of biological sciences” Ethionine significantly inhibits wool growth in sheep but not hair growth in mice or rats.
November 2022 in “Animal Bioscience” Adding methionine to a low-protein diet helps Angora rabbits grow better fur.
Higher methionine in pregnant rabbits' diets improves baby rabbits' hair growth.
Higher methionine levels in pregnant rabbits' diets improve hair follicle development and hair fiber diameter in their babies.
11 citations,
September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
17 citations,
August 2015 in “Journal of Animal Science” The MTR gene affects wool quality and production in Chinese Merino sheep.
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.
9 citations,
October 1946 in “Experimental biology and medicine” Rats fed soybean oil meal lost hair, but adding inositol, biotin, cystine, or methionine to their diet prevented this and improved growth.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
13 citations,
July 1951 in “Industrial & Engineering Chemistry” Yeast grown on wood sugar with added methionine could be a cheap alternative to animal protein for feed.
17 citations,
October 2010 in “Pigment cell & melanoma research” Human hair color is influenced by complex biochemical processes involving enzymes and reactive oxygen species.
15 citations,
January 2016 in “Przeglad Menopauzalny” Eating a balanced diet with specific nutrients is important for menopausal women to manage hair loss.
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.
7 citations,
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,
January 2016 in “Genetics and Molecular Research” Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.
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.
2 citations,
June 2016 in “PubMed” An 11-year-old girl with compulsive hair pulling was successfully treated with therapy and medication.
2 citations,
November 1995 in “American Journal of Obstetrics and Gynecology” Taking vitamin B6 corrected a pregnant woman's metabolic disorder, which changed her hair color.