TABLE 1

Number of exocytotic FM1–43 hotspots on the plasma membrane at the equatorial plane of rat pancreatic islet β-cells evoked by different agonists

AgonistsHotspots per equatorial plane per cell
90 mmol/l KCl1.8 ± 0.5
90 mmol/l KCl + 150 μmol/l IBMX2.0 ± 0.3
10 nmol/l GLP-1 + 90 mmol/l KCl + 150 μmol/l IBMX6.0 ± 0.7
  • Data are means ± SE.