Table 2.

Population of quantal events measured from AtT-20 cells

N cells% cells released# quanta (n)Events/stim% > 1 msec
TH4918%91  ± 05  (56%)
VMAT2/TH8043%2014.39  ± 0.53*187  (93%)
VMAT2/TH/l-DOPA3650%825.76  ± 0.98*30  (37%)
  • Characteristics of spike size and shapes of these events are reported in Table 1. The number of cells recorded per condition (N cells), the percentage of the cells that showed amperometric events (% cells released), the total number of events per category (# quanta), the mean ± SEM of amperometric events per stimulation for those cells that displayed release (events/stim), and the percentage of events with duration >1 msec (% > 1 msec) are indicated.

  • * Different from control, p < 0.0001,t test.