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. 2004 Oct 20;24(42):9405–9413. doi: 10.1523/JNEUROSCI.0899-04.2004

Table 2.

Fos expression in the spinal cord 5 d after acid injection



Wild type

High-OE myo/NT-3

Wild type NT-3 treated

Contralateral
Ipsilateral
Contralateral
Ipsilateral
Contralateral
Ipsilateral
Lamina I-II
Saline 1.40 ± 0.23 3.60 ± 1.27 3.60 ± 1.60 4.13 ± 2.53
Acid 1.73 ± 0.64 14.87 ± 1.05* 3.07 ± 1.88 3.07 ± 1.20** 1.0 ± 0.32 1.2 ± 0.49
Lamina III-IV
Saline 3.07 ± 0.84 3.60 ± 0.53 9.40 ± 5.20 9.73 ± 5.25
Acid 5.27 ± 0.74 12.93 ± 1.73* 7.87 ± 3.99 8.27 ± 2.97 1.2 ± 0.37 1.4 ± 0.51
Lamina V-VI
Saline 8.07 ± 1.13 7.93 ± 0.88 21.33 ± 12.08 22.60 ± 10.60
Acid
12.53 ± 1.27
23.00 ± 1.21*
15.93 ± 7.53
17.87 ± 5.97
1.0 ± 0.55
0.6 ± 0.24

The number of Fos-positive cells was counted from different spinal laminas from both ipsilateral and contralateral sides of the spinal cord 5 d after acid injection. Comparisons were made between groups using one-way ANOVA and Fisher's PLSD. In regard to NT-3 overexpression, wild-type mice were derived from litters within the myo/NT-3 colony. For exogenous treatments, wild-type CF-1 mice were purchased from Charles River. In wild-type mice, acid injection caused significant increases in the number of Fos-positive neurons compared with saline-injected mice in each lamina (*p < 0.05). In contrast, acid treatment did not increase Fos-positive neurons in high-OE myo/NT-3 as well as in wild-type mice treated with NT-3. Moreover, the number of Fos-positive nuclei was significantly lower in acid-injected high-OE myo/NT-3 mice compared with acid-injected wild-type mice (**p < 0.05). Data are plotted as means ± SEM; n = 3 animals per group.