The level of inflammation and oxidative stress was markedly reduced in the SDAT patients treated with the test formulation when compared to the donepezil-treated group indicating a likely mechanism of action of the test formulation ( homocysteine @ @ vs @ @ nmol/L , P < @ ; C-reactive protein -LSB- CRP -RSB- @ @ vs @ @ mg/L , P < @ ; tumour necrosis factor alpha -LSB- TNF - -RSB- @ @ vs @ @ pg/ml , P < @ ; superoxide dismutase -LSB- SOD -RSB- @ @ vs @ @ U/g Hb , P = @ ; glutathione peroxidase -LSB- GPx -RSB- @ @ vs @ @ U/g Hb , P < @ ; glutathione -LSB- GSH -RSB- @ @ vs @ @ U/g Hb , P < @ ; thiobarbituric acid reactive substances -LSB- TBARS -RSB- @ @ vs @ @ nmol/g Hb , P < @ ) .