TABLE 1

Pharmacological parameters for 5-HT receptor agonist-induced contraction in endothelium-intact rat jugular vein

AgonistpD2= −log EC50Maximal Effectna
mg
5-HT6.65 ± 0.17729 ± 83.413
α-Methyl-5-HT7.23 ± 0.05777 ± 108.55
DOI7.76 ± 0.12631 ± 59.18
5-Methoxytryptamine7.19 ± 0.04627 ± 35.86
5-CT6.52 ± 0.40502 ± 30.535
BRL54437.32 ± 0.03482 ± 12.44
8-OH-DPAT5.58 ± 0.06329 ± 23.45
BW723C866.17 ± 0.10310 ± 47.88
RU249696.38 ± 0.10229 ± 23.76
LP44N/A155 ± 31.88
SumatriptanN/A10 ± 3.415
ZacoprideN/AN/A4
EMD386088N/AN/A6
  • N/A, could not be obtained.

  • a Number of experiments.