Figure 2From: Multiple P2Y receptors couple to calcium-dependent, chloride channels in smooth muscle cells of the rat pulmonary arteryAmplitude of the first inward current induced by P2Y receptor agonists. The mean ± s.e.mean of the peak amplitude of the initial inward currents evoked by 10-4 M ATP, UTP and UDP in SPA and LPA isolated smooth muscle cells, voltage-clamped at -50 mV, are shown. The number of cells for each is indicated in parentheses. *P < 0.05 for responses to ATP versus UTP and UDP in SPA.Back to article page