“…Methionine deficiency in methionine-marginal animals with prolonged (dietary) ACAP administration is indicated by decreased growth , McLean and Beales 1987, Reicks et al 1988, McLean et al 1989); inhi-S16 J. N. Hathcock bited protein synthesis, with decreases in plasma free cysteine; decreased excretion of creatinine and A'-methyl-nicotinamide ; and prolonged decreases in tissue GSH levels (Reicks etal. 1988, Reicks and Hathcock 1988b, 1989, Reicks etal. 1989.…”