Experimental

Groups

Amplitude (mg)

Frequency (Hz)

Before Oxy

After Oxy

%Decrease

Before Oxy

After Oxy

Saline (Control)

3654.88 ± 291.53

1257.53 ± 110.17*

63.79 ± 4.24

1.83 ± 0.27

2.22 ± 0.28

6-OHDA + Saline

6218.78 ± 887.57^a

1011.87 ± 70.32*

82.16 ± 1.84^a

1.76 ± 0.30

2.81 ± 0.27*

6-OHDA + Varenicline

3029.62 ± 392.11^b

873.7 ± 129.69*

65.29 ± 8.27

1.86 ± 0.27

2.24 ± 0.35