TABLE 2.
Effect of treatment with Phα1β or Morphine on formalin-induced brain activation: comparison between brain regions according to the cerebral hemisphere. Values represent mean ± S. E. M. of18F-FDG uptake normalised by uptake in the intrathecal PBS group.
| Region | Ipsilateral | Contralateral | ||
|---|---|---|---|---|
| Phα1β | Morphine | Phα1β | Morphine | |
| AcbCore/Shell | 93.78 + 3.52 | 94.46 + 3.32 | 94.47 + 3.40 | 91.18 + 3.16 |
| Amygdala | 100.87 + 8.63 | 93.22 + 5.60 | 100.39 + 8.88 | 89.11 + 4.59 |
| CaudatePutamen | 95.56 + 5.67 | 92.77 + 3.11 | 96.43 + 5.49 | 94.32 + 3.51 |
| CortexAuditory | 102.03 + 5.14 | 98.01 + 4.74 | 98.51 + 4.29 | 96.16 + 4.16 |
| CortexCingulate | 97.42 + 3.74 | 96.73 + 4.05 | 89.04 + 3.04 | 91.16 + 4.58 |
| CortexEntorhinal | 95.16 + 4.69 | 90.73 + 4.86 | 99.55 + 4.69 | 89.46 + 4.60 |
| CortexFrontalAssociation a | 98.87 + 6.36 | 98.20 + 6.21 | ||
| CortexFrontal a | 101.43 + 4.23 | 99.61 + 5.05 | ||
| CortexInsular | 100.70 + 7.86 | 94.36 + 3.51 | 98.31 + 5.02 | 94.36 + 3.51 |
| CortexMedialPrefrontal | 96.40 + 3.57 | 97.60 + 5.23 | 94.27 + 4.26 | 97.64 + 6.09 |
| CortexMotor | 100.39 + 4.15 | 96.91 + 2.99 | 91.49 + 3.19 | 92.07 + 3.98 |
| CortexOrbitofrontal | 98.62 + 5.59 | 97.39 + 3.21 | 100.79 + 3.71 | 98.90 + 3.39 |
| CortexParA | 100.71 + 510 | 99.16 + 4.89 | 98.72 + 4.57 | 101.93 + 4.14 |
| CortexRetrosplenial | 98.42 + 5.05 | 97.55 + 5.10 | 96.89 + 4.94 | 96.25 + 3.98 |
| CortexSomatosensory | 98.13 + 4.50 | 94.74 + 3.96 | 94.73 + 3.38 | 94.50 + 4.51 |
| CortexVisual | 100.01 + 5.18 | 100.63 + 4.86 | 98.52 + 4.17 | 100.60 + 3.96 |
| HippocampusAnteroDorsal | 98.35 + 3.79 | 98.23 + 4.20 | 100.72 + 3.81 | 101.34 + 3.87 |
| HippocampusPosterior | 96.48 + 6.13 | 96.83 + 5.47 | 97.66 + 5.01 | 94.61 + 3.00 |
| Hypothalamus | 95.01 + 4.20 | 95.38 + 4.18 | 97.06 + 4.44 | 95.29 + 5.31 |
| Olfactory | 93.92 + 5.09 | 90.52 + 4.72 | 98.94 + 4.44 | 93.69 + 2.76 |
| SuperiorColliculus | 96.63 + 4.23 | 97.53 + 4.88 | 96.48 + 4.14 | 98.49 + 4.16 |
| Midbrain | 99.29 + 3.92 | 98.42 + 4.33 | 99.66 + 5.70 | 98.19 + 4.49 |
| VTA | 97.03 + 4.89 | 104.24 + 6.14 | 95.44 + 4.60 | 97.71 + 5.66 |
| CB-grey | 95.91 + 4.70 | 101.00 + 5.40 | 98.23 + 5.53 | 103.29 + 6.00 |
| CB-white | 96.14 + 4.34 | 100.97 + 4.32 | 96.74 + 4.71 | 100.57 + 5.23 |
| InferiorColliculus | 97.53 + 5.04 | 96.22 + 3.90 | 96.10 + 3.63 | 99.96 + 5.33 |
| ThalamusWhole | 95.79 + 3.22 | 96.28 + 4.38 | 97.26 + 3.97 | 96.28 + 4.38 |
| Pituitary a | 98.44 + 6.32 | 97.90 + 9.98 | ||
| CB-bloodflow a | 98.52 + 4.93 | 98.78 + 4.34 | ||
| CentralCanal-PAG a | 95.70 + 3.90 | 97.40 + 4.95 | ||
| Pons a | 97.3 + 5.28 | 100.92 + 5.93 | ||
| Septum a | 97.32 + 4.24 | 95.54 + 3.84 | ||
| Medulla a | 97.86 + 6.43 | 99.87 + 4.94 | ||
Regions located in a central plane between the two cerebral hemispheres. They are not categorised as right or left by the analysis software, although they are presented as ipsilateral in the table. The definition of contra or ipsilateral was made in reference to the right paw where formalin or PBS, was administered.