Rats were randomly divided into 4 groups of 6 rats each.
Group 1 served as the control and received normal saline (3
ml/kg). Groups 2, 3 and 4 were treated with 5, 10 and 15
mg/kg of MSG respectively for 28 days. All drugs were
administered orally. After the 28-day treatment, rats were
anesthetized with diethyl ether and blood was collected by
cervical decapitation into clean lithium heparin bottles.
Blood sample was centrifuged for 5 min and the plasma
obtained was subsequently used for biochemical assays.
Whole blood was used for hematological study.