“ Glucosamine administration significantly increased intraerythrocyte total glutathione levels (from 212.…/L, P = 0.006), intraerythrocyte reduced form of glutathione (GSH) levels (from 124.7 ± 42.6 to 155.2 ± 47.7 μmol/L; P = … (GSSG) ratios (from 3.18 ± 1.64 to 3.88 ± 1.61, P = 0.04).”