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Table 1 Visceromotor response (VMR) to phasic ascending colorectal distention (CRD) over time following exposure to single-prolonged stress

From: PKCγ receptor mediates visceral nociception and hyperalgesia following exposure to PTSD-like stress in the spinal cord of rats

Group

10 mm Hg

20 mm Hg

40 mm Hg

60 mm Hg

Control (n = 8)

0.055 ± 0.006

0.259 ± 0.013

0.380 ± 0.014

0.535 ± 0.020

Post-1 day (n = 7)

0.053 ± 0.007

0.230 ± 0.012

0.301 ± 0.012*

0.417 ± 0.018*

Post-6 days (n = 8)

0.047 ± 0.006

0.263 ± 0.019

0.359 ± 0.012

0.536 ± 0.022

Post-7 days (n = 10)

0.056 ± 0.006

0.284 ± 0.020

0.617 ± 0.022

0.759 ± 0.022

Post-9 days (n = 7)

0.059 ± 0.007

0.329 ± 0.015

0.670 ± 0.028

0.896 ± 0.008

Post-14 days (n = 8)

0.048 ± 0.005

0.254 ± 0.037

0.653 ± 0.020

0.818 ± 0.020

Post-21 days (n = 10)

0.053 ± 0.006

0.291 ± 0.017

0.648 ± 0.021

0.823 ± 0.017

Post-28 days ( n = 9)

0.050 ± 0.005

0.312 ± 0.016

0.623 ± 0.024

0.839 ± 0.026

Post-29 days (n = 9)

0.042 ± 0.003

0.291 ± 0.021

0.450 ± 0.022

0.594 ± 0.025

  1. All data are expressed as the mean ± S.E.M.
  2. VMR was represented by the mean value of the area under the curve of the electromyographic activity during CRD.
  3. * P < 0.05 compared with Control.
  4. P < 0.001 compared with Control.
  5. P < 0.05 compared with post-29 days.