100
0 60 80
40
20
W it h d ra w a l re sp o n se f re q u e n cy (% )
ns ns
Before!
i.t.
During!
i.t.
After!
i.t.
Befor After!
i.t. IFN i.t. Saline
* *
†
(6) (6)
Figure 1
Attenuation of mechanical allodynia by intrathecal IFN
!
!
!
!
!
!
0 60 80
40
20
W it h d ra w a l re sp o n se f re q u e n cy (% )
i.t . I F N + i.p . Sa lin e
i.t . I F N + i.p . N T L
i.t . I F N + i.p . N AL
ns
*
*
(5) (5) (5)
Figure 2
Reversal of the analgesic effect of intrathecal IFN by intraperitoneal
administration of NTL (blue bar) and NAL (green bar)
†
ns ns
*
*
Before!
i.t.
During!
i.t.
After!
i.t.
i.t. Saline i.t. CTX
W it h d ra w a l re sp o n se f re q u e n cy (%
) 100 80 60 40 20 0
(6) (6)
Figure 3
i.t . C
T X + i.p . Sa lin e
i.t . C
T X + i.p . N T L
i.t . C
T X + i.p . N AL
!
!
!
!
!
!
100
0 60 80
40
20
W it h d ra w a l re sp o n se f re q u e n cy (% )
0 60 80
40
20
W it h d ra w a l re sp o n se f re q u e n cy (% )
ns
*
*
(5) (5) (5)
Figure 4
Reversal of the analgesic effect of intrathecal CTX by intraperitoneal
administration of NTL (blue bar) and NAL (green bar)
i.t. CTX
i.t . I F N + i.t . C T X i.t. IFN
i.t . Sa lin e
!
!
!
!
!
!
100
0 60 80
40
20
W it h d ra w a l re sp o n se f re q u e n cy (% )
ns
ns ns
*
*
*
(5) (5) (5) (5)