in vivo
Application of ZD7288 0.1 μM at 5 minutes before high-frequency stimulation significantly decreases the amplitude of field excitatory postsynaptic potentials (fEPSPs), and this inhibitory effect is maintained throughout the recording period. Application of 0.1 μM ZD7288 30 minutes after high-frequency stimulation almost completely reverses the established long-term potentiation (LTP). Following application of ZD7288 (0.1 μM) 5 minutes before high-frequency stimulation, glutamate content is reduced to 74.9±8.0% (P<0.05, vs. normal saline group). Furthermore, application of 0.1 μM ZD7288 30 minutes after high-frequency stimulation markedly decreases the glutamate content to 77.0%±9.4% (P<0.05, vs. normal saline group)[1].
References
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[2]. sánchez-alonso jl, halliwell jv, colino a. zd 7288 inhibits t-type calcium current in rat hippocampal pyramidal cells. neurosci lett, 2008, 439(3): 275-280.
[3]. larkman pm, kelly js. modulation of the hyperpolarisation-activated current, ih, in rat facial motoneurones in vitro by zd-7288. neuropharmacology, 2001, 40(8): 1058-1072.
[4]. gasparini s, difrancesco d. action of the hyperpolarization-activated current (ih) blocker zd 7288 in hippocampal ca1 neurons. pflugers arch, 1997, 435(1): 99-106.
