Research Article

The Toxic Effect of Manganese on the Acetylcholinesterase Activity in Rat Brains

Table 2

AChE activity variations in presence of chronic dose (2 mg/kg) of Mn in the different long time intervals. Asterisk symbols indicate significant changes ().

Rat groupsAChE activity (nmol/min/mg protein)

Control
Chronic dose in 15 days
Chronic dose in 30 days
Chronic dose in 45 days
Chronic dose in in 60 days