Table 1.
Characterization of dye coupling among axotomized motor neurons
| Weeks after axotomya | Number of motor neurons characterized by collision test (cells/animals) | Number of dye-labeled cells per cluster mean ±SEM (n), range | Diameter of dye-labeled cells per cluster mean ± SEM, range | Distribution of dye-labeled cells rostrocaudal/dorsoventral/mediolateral mean (μm), range |
|---|---|---|---|---|
| 0 | 17/4 | 1 (4) | 46 ± 2 | Not applicable |
| Not applicable | 42 − 55 | |||
| 1 | 15/3 | 2.8 ± 0.4(6) | 43 ± 2 | 275/225/150 |
| 2 − 4 | 40 − 53 | 230–325/190–280/120–185 | ||
| 4–6 | 33/5 | 3.8 ± 0.6(8)1-b | 42 ± 3 | 230/205/135 |
| 2 − 6 | 39 − 48 | 190–270/180–230/95–160 |
F1-a
The medial gastrocnemius and lateral gastrocnemius–soleus muscle nerves were cut near their entry into the muscle, and a 2–3 mm piece was resected.
F1-b
Not significantly different from value at 1 week; p < 0.10; Student's t test.