Table 2.
Summary of muscle fiber size and L5 axon and cell body counts. Statistical significance at p<0.05 is denoted by a single asterisk.
| Quadricep Muscle Fiber Diameter (μm) | L5 Motor Axon Number | L5 Motor Soma Number | ||||
|---|---|---|---|---|---|---|
| Age | Normal | Affected | Normal | Affected | Normal | Affected |
| 3 days | -- | -- | 4130 3612 |
3594 3456 |
-- | -- |
| 4.5 weeks | -- | -- | 5023 4598 |
5544 6342 |
-- | -- |
| 6 weeks | 16.0±2.6 12.0±2.5 |
16.6±4.2 14.4±2.8 |
4524±867 (n=3) | 4385±147 (n=3) | -- | -- |
| 8-9 weeks | 18.2±4.6 18.8±3.6 |
18.2±3.6 16.6±4.2 |
4297±151 (n=3) | 4221±481 (n=3) | 1456±277 (n=3) | 1539±143 (n=3) |
| 10 weeks | 17.2±3.8 22.9±4.3 |
14.5±2.6 11.6±1.9 |
4312±747 (n=3) | 4481±194 (n=3) | -- | -- |
| 12 weeks | -- | -- | 4543±396 (n=4) | 3647±269* (n=4) | 1187±101 (n=4) | 1072±259 (n=4) |
| 21 weeks | -- | -- | 4575±648 (n=5) | 2734±472* (n=5) | 967±105 (n=5) | 787±63 (n=5) |