Table 6.
Effects of passive exposure to tobacco smoke on [125I]-epibatidine binding.
| Brain region | Control (n=6) | Tobacco (n=6) |
|---|---|---|
| Stratum oriens | 36.0 ± 2.5 | 38.3 ± 2.4 |
| Olfactory tubercle | 10.8 ± 2.3 | 13.0 ± 2.0 |
| Cortex layers 1–2 | 18.5 ± 4.1 | 25.2 ± 3.1 |
| Cortex layers 3–4 | 51.8 ± 5.9 | 49.1 ± 3.6 |
| Cortex layers 5–6 | 28.8 ± 4.3 | 36.6 ± 3.1 |
| Dentate gyrus | 20.3 ± 2.2 | 30.7 ± 1.7** |
| Medial habenula | 138.9 ± 4.0 | 123.0 ± 8.0 |
| Thalamus | 72.3 ± 2.8 | 58.7 ± 3.7* |
| Subiculum | 31.5 ± 4.2 | 35.4 ± 1.8 |
| Superior Colliculus | 91.4 ± 4.9 | 90.0 ± 2.6 |
| Medial geniculate n. | 62.7 ± 5.8 | 60.8 ± 2.0 |
| Substantia nigra | 55.0 ± 6.2 | 62.6 ± 2.0 |
| Fasciculus retroflexus | 83.7 ± 4.1 | 74.1 ± 1.6 |
Data are expressed as means ± SEM. Asterisks (**P<0.01, *P<0.05) indicate a significant difference compared to the control group.