氟离子与四价硒在不同浓度比例下混合作用，其拮抗作用程度不同，并呈一定规律性变化。
The combined action degree of fluoride and selenite varied with their different mixture ratios and changed in a regular way.
钙离子拮抗剂—尼莫地平有重要的脑保护作用。
Nimodipine, a calcium-channel antagonist has importment brain protection role.
结论：IL具有拮抗牵张性心律失常作用，这种作用可能是通过阻断牵张活化的离子通道实现。
CONCLUSION IL possesses the antagonistic effects on stretch-induced arrhythmia, which may be related to blockade of stretch-activated ion channels.
目的利用氟桂利嗪(FNZ)研究钙离子拮抗剂对体外培养海马神经元缺血缺氧损伤的作用及其作用机制。
Objective To study the dual effects of calcium antagonists on ischemic hypoxic injury of hippocampal neurons cultured in vitro by using flunarizine (FNZ) and the mechanism of its action.
方法：用荧光倒置显微镜来测定癫痫状态下海马CA1、CA3区钙超载的情况，并用钙离子拮抗剂尼莫地平作用于海马脑片看钙超载的变化。
Methods: calcium overloading in hippocampal CA1, CA3 region of epileptic rats was measured using a fluorescent inverted microscope, and the inhibition by the nimodipine was observed, too.
结果表明，氟离子与两种价态硒的联合毒性都为拮抗作用；
The results showed that the combined toxicities were antagonism in both fluoride and selenite and fluoride and selenate tests.
结果表明，氟离子与两种价态硒的联合毒性都为拮抗作用；
The results showed that the combined toxicities were antagonism in both fluoride and selenite and fluoride and selenate tests.
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