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Table 1 Peak spinal cord injury currents measured on ventral and dorsal portion of guinea pig spinal cords.

From: Large naturally-produced electric currents and voltage traverse damaged mammalian spinal cord

n

Vertical portion of spinal cord (μA/cm2)

Dorsal portion of spinal cord (μA/cm2)

1

231.61

69.03

2

278.79

32.23

3

298.53

44.93

4

184.75

60.29

5

1065.79

72.32

  1. Five samples each of the ventral and dorsal portions were used. The crush injury currents produced in the ventral portion of the spinal cords had a median value of 278.79 μA/cm2, a minimum value of 184.75 μA/cm2and a maximum value of almost 1.06 mA/cm2. Alternately, the crush injury currents produced on the dorsal portion of the spinal cords are almost 3 times lower, with a median value of 60.29 μA/cm2, minimum value of 32.23 μA/cm2 and a maximum value of 72.32 μA/cm2. Comparison of these data using a two-tailed Mann-Whitney non-parametric test revealed the differences between dorsal and ventral ionic current flow to be extremely significant (P = 0.0079).
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Journal of Biological Engineering

ISSN: 1754-1611