Table 4.
Segmental Distribution of Pre-Motor ECRL Interneurons
| Interneurons | Interneurons | Interneurons | ||
|---|---|---|---|---|
| Group | Side | C1-C3 | C4-C6 | C7-T1 |
| 72 h CTRL | Ipsilateral | 4±1 | 7±2 | 7±1 |
| Contralateral | 3±1 | 5±1 | 4±1 | |
| 72 h C2Hx | Ipsilateral | 3±1 | 1±1 | 2±1 |
| Contralateral | 1±1 | 1±1 | 2±2 | |
| 96 h CTRL | Ipsilateral | 185±63*# | 119±32*# | 252±88* |
| Contralateral | 95±30# | 48±11# | 77± | |
| 96 h C2Hx | Ipsilateral | 146±36*# | 134±27*# | 359±115* |
| Contralateral | 101±23# | 62±10# | 90±22 |
Values are mean number of ECRL interneurons (raw counts) by segment ± 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 C7-T1.
ECRL, extensor carpi radialis longus; CRTL, control; C2Hx, high cervical lateral hemisection.