Table 1

pKivalues for displacement of [3H]PGE2 by PGE2 and PGE2ethanolamide from cell membranes transfected with EP1, EP2, EP3, and EP4 receptors (n= 3–8)

CompoundhEP1hEP2hEP3hEP4
PGE2 8.31 ± 0.169.03 ± 0.049.34 ± 0.069.10 ± 0.04
PGE2ethanolamide5.61 ± 0.106.33 ± 0.016.70 ± 0.136.29 ± 0.06