nervous system
• about a 50% decrease in tetrodotoxin-resistant current density in whole-cell voltage clamp assays of dorsal root ganglia neurons, but no difference in tetrodotoxin-sensitive current density
• decrease in total evoked neuron activity in wide dynamic range (WDR) spinal neurons following noxious pinch stimulation but not after noxious cold or brush stimulation
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behavior/neurological
• increased pain threshold following noxious mechanical stimuli applied to the tail but not to the paw
• no significant difference in response to noxious radiant or in hotplate latency
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