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Table 1 Predicted Effectiveness of AED Target

From: Designing anti-epileptic drugs using neuronal dynamics

Parameter (Current)

PRC SSE

Parameter (Current)

PRC SSE

Parameter (Current)

PRC SSE

Parameter (Current)

PRC SSE

theta nt (KDR)

10.8

sigma a (KA)

39.2

theta m (Na)

86.9

sigma n (KDR)

106.5

theta b (KA)

21.4

sigma nt (KDR)

41.2

sigma ht (Na)

90.2

theta p (NaP)1

108.4

theta a (KA)

22.4

sigma h (Na)

51.3

gL (Leak)

94.7

theta h (Na)1,3-7

115.9

gKA (KA)

26.1

theta ht (Na)

54.4

sigma p (NaP)

100.0

theta z (Kslow)

134.4

sigma b (KA)

28.4

gKSlow (Kslow)

74.8

sigma m (Na)

101.7

sigma z (Kslow)

138.9

gKDR (KDR)

38.1

gNa (Na)

82.0

gNaP (NaP)

102.7

theta n (KDR)2

156.3

  1. Each parameter studied was ranked according the sum squared error of its measured PRC compared to the measured control PRC. Known convulsant drug, 4-aminopyridine (2), ranks last with the greatest error of the PRC, while known AED phenytoin (1) ranks higher. The top ranking currents are all associated with K+ currents that currently have no associated AEDs, but in recent years K+ channels have been seen as potential targets after the success of the drug retigabine. In this model, the K+ M-current is part of the conglomerate Kslow current making commentary difficult. Other AEDs not examined in this study: valproate (3), topiramate (4), carbamazepine (5), oxcarbazepine (6), lamotrigine (7) also stabilize Na+ inactivation.