highly significantP < 0.01
8b , the second response was smaller on average on adding Krebs solution (R2/R1 = 0.73 ± 0.10, n = 33) but was consistently increased after adding 10 μM retigabine (R2/R1 = 1.18 ± 0.04, n = 24); the difference between retigabine and Krebs’ solution was highly significant ( P < 0.01).