Figure 3.

Comparison of the effects of [Arg¹⁴,Lys¹⁵]N/OFQ (0.3–3 μg kg⁻¹), an agonist of NOP receptor, and of nociceptin (30 μg kg⁻¹) on the airway plasma extravasation in guinea-pigs pretreated with atropine (3 mg kg⁻¹), propranolol (1 mg kg⁻¹) and phosphoramidon (1 mg kg⁻¹). Data are expressed as mean±s.e.m., n=3–4 per group. ^#P<0.01 vs −HCl, ^*P<0.05 vs +HCl, ^**P<0.01 vs +HCl.