Frontal cortex homocysteine, cysteine and glutathione concentrations (nmol/mg protein) after 2, 4 and 6 months of hyperhomocysteinemia induced by methionine treatment.

<p>CT = control; M05 = Methionine 0.5%; M1 = Methionine 1%; Hcy = Homocysteine; Cys = Cysteine; GSH = Glutathione. Values presented as the mean ± SEM. * = Different from CT group in respective time of treatment (Tukey's <i>post hoc</i> test, p = 0.02). ^# = Different from M05 at 2 months (p<0.05)