Table 2.

Biochemical parameters of enzyme activities

Group	SOD (U/mL)	GSH (ng/L)	ALT (U/mL)	AST (U/mL)
AD	11.252±4.361	12.223±1.973	89.791±6.485	212.247±19.698
Controls	27.144±3.082	26.258±2.567	47.228±10.83	112.554±24.077
t-value	5.482	6.948	7.125	5.916
P-value	0.002	0.001	0.001	0.002

Notes: All data presented as mean ± SD (n=147 for AD patients and n=160 for healthy controls). Student’s t-test used to evaluate statistically significant differences (P<0.05).

Abbreviations: GSH, glutathione; AD, Alzheimer’s disease; SD, standard deviation; SOD, superoxide dismutase; ALT, alamine aminotransferase; AST, asparate aminotransferase.