3 结果
We studied a strain of exon replacement mice ("L9'S knock-in") whose alpha4 nicotinic receptor subunits have a leucine to serine mutation in the M2 region, 9' position (Labarca et al., 2001); this mutation renders alpha4-containing receptors hypersensitive to agonists. Nicotine induced seizures at
The kindling phenomenon was produced after chronic electrostimulation of the cat amygdala. The duration and intensity of petit mal and grand mal were recorded. The M-cholinomimetic arecoline (0.3 mg/kg), the acetylcholinesterase inhibitor galanthamine (1-3 mg/kg) and the N-cholinergic blockers
The nitrous oxide withdrawal syndrome in mice was used as an experimental model to examine some of the factors which may play a role in postanesthetic excitation. Predisposition to nitrous oxide withdrawal convulsions as judged by duration of susceptibility was decreased significantly after