Table 8.

Effects of 5-HT receptor activation on Shox2 in propertiesa

UninjuredSCIUninjured vs SCI
mean ± SDtestpmean ± SDtestptestp
5-HT7 receptor activationEm, Δ from antagonist3.6 ± 3t(7) = 3.20.01*3.5 ± 4t(11) = 2.90.01*t(18) = 0.020.9
Rheobase current (% of antagonist)87.0 ± 25t(7) = 1.40.177.8 ± 20t(12) = 3.90.001*t(19) = 0.90.3
Firing frequency at 1.5× rheobase (% of antagonist)119.2 ± 44W = 90.4101.1 ± 39W = −50.9U = 240.3
5-HT2A receptor activationEm, Δ from antagonist0.6 ± 3W = −20.90.4 ± 2t(9) = 0.50.6U = 330.5
Rheobase current (% of antagonist)98.4 ± 29t(7) = 0.10.891.4 ± 26W = −140.2U = 33.50.5
Firing frequency at 1.5× rheobase (% of antagonist)125.6 ± 57W = −140.491.0 ± 24t(9) = 1.10.2U = 16.50.3
5-HT2B/2C receptor activationEm, Δ from antagonist−0.1 ± 1t(6) = 0.20.83.1 ± 3t(8) = 2.60.02*t(14) = 2.30.03*
Rheobase current (% of antagonist)92.1 ± 19t(6) = 1.00.373.2 ± 17t(8) = 4.10.003*t(14) = 1.70.1
Firing frequency at 1.5× rheobase (% of antagonist)99.3 ± 9W = −10.9106.9 ± 22t(7) = 0.80.4U = 200.6
  • aUninjured and SCI, one-sample t test or Wilcoxon signed rank test (W); Uninjured versus SCI, unpaired t test or Mann–Whitney U test.

  • *Statistical significance: p < 0.05.