乳头肌;
Methods Papillary muscle was excised from the right ventricle and was paced at 1? Hz. Biphasic square wave current pulse was delivered during the ARP ( called CCM).
方法分离兔右心室乳头肌、灌流并给予1HZ刺激使其等长收缩,于该基础刺激的绝对不应期给予双相方波电流刺激(称之CCM)。
Zinc sulfate ( 0.1 mmol) inhibited the guinea pig papillary muscle oscillatory afterpotential induced by ouabain ( 0.4 μ mol). It increased the threshold concentration of ouabain necessary for inducing oscillatory afterpotential.
0.1mmol硫酸锌可对抗0.4μmol哇巴因诱发的豚鼠心室肌振荡后电位,提高引起振荡后电位的哇巴因阈浓度。
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