Table 5.
Regional Distribution of Pre-Motor ECRL Interneurons
| Group | Side | Dorsal horn | Intermediate gray |
|---|---|---|---|
| 72 h CTRL | Ipsilateral | 3±1 | 16±2 |
| Contralateral | 3±1 | 8±2 | |
| 72 h C2Hx | Ipsilateral | 2±1 | 4±2 |
| Contralateral | 1±1 | 3±2 | |
| 96 h CTRL | Ipsilateral | 203±62* | 352±119*# |
| Contralateral | 44±17 | 176±60# | |
| 96 h C2Hx | Ipsilateral | 270±66* | 368±100*# |
| Contralateral | 51±10 | 202±43# |
Values are mean number of ECRL interneurons (raw counts) by region ± standard error of the mean (SEM). Statistical analyses of interneuron counts were limited to the 96 h time point using a two way ANOVA. No differences in labeling were observed between CTRL and C2Hx groups.
*
p<0.05 difference from contralateral. #p<0.05 difference from dorsal horn.
ECRL, extensor carpi radialis longus; CRTL, control; C2Hx, high cervical lateral hemisection.