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.
3 citations
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January 1982 in “Australian journal of biological sciences” This study found that ethionine significantly inhibited wool growth in sheep, with L- and D-isomers being equally effective, but did not cause hair loss in sucking mice or rats.
January 2013 in “Heilongjiang xumu shouyi” This study found that a compound additive improved the growth and fur quality of blue foxes, with a 28.7% increase in weight gain and longer pelt lengths compared to the control group.
28 citations
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November 2013 in “The FASEB journal” In this study, a low-methionine diet significantly improved the health and physical traits of cystathionine β-synthase-deficient mice, contrasting with negative effects on mice with partial deficiency.
19 citations
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July 2015 in “Journal of inherited metabolic disease” This study observed that while betaine supplementation decreases total homocysteine and increases methionine levels in a mouse model of CBS deficiency, it is not as effective as methionine restriction in reversing associated phenotypes.