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- In the hypoxic muscle, it caused anincrease in resting potential, action potential amplitude, maximum upstroke velocity of 0 phase depolarization and prolongation of APD. 在缺氧心肌,肌苷使细胞静息电位增大,动作电位去极化幅度增高,零期最大去极化速度加快和动作电位时间延长。
- E_(2) or P slowed down the maximal rate of rise of phase 0 (Vmax)of AP, decreased the action potential amplitude(APA), prolonged APduration(APD9o and APD) and ERP ,decreased the maximal isometrictension. (1)E_2与P单独作用可使动作电位时程(APD(90)、APD)延长,APD_(20)缩短,心肌收缩力降低,APA、Vmax降低,ERP延长。 (2)不同浓度E_2与P联合应用,P可加强E_2的效应,这种作用可能呈现浓度依赖性,其具体作用机制如何,有待进一步研究。
- Results: 1) E2 or P prolonded AP duration (APD20, APD50, APD90 and APD), RPT and DPT, slowed down the maximal rate of rise of phase 0(Vmax), decreased the action potential amplitude(APA). 结果:1)E_2与P单独作用均可使家兔窦房结细胞动作电位时程(APD_(20)、APD_(50)、APD_(90)、APD)延长,动作电位幅度(APA)及0期最大除极速率(V_(max))明显降低,0期除极时间(DPT)延长。
- Results: Sensory symptoms or signs were present in 32% of patients, sural sensory nerve action potential amplitudes were abnormal in 27%, and pathologic abnormalities were present in 91% of patients. 结果:32%25的患者存在感觉症状或体征,27%25的患者腓肠神经动作电位波幅异常,91%25的患者病理异常。
- Comparison of compound muscle action potential amplitude the between pateints with motor neuron disease and those with lower motor neuron disease 运动神经元病与下运动神经元综合征患者肌肉复合动作电位波幅变化比较
- action potential amplitude 动作电位振幅
- Hodgkin-Huxley Model of the Action Potential. 12动作电位之霍奇金-赫胥黎模型。
- The peroneal motor conductionvelocity (MCV), distal potential latency(DPL), amplitude and duration of the compound muscle action potential(CMAP) were determined in the be groups. 在三组中测定腓总神经运动神经传导速度(MCV),远端潜伏期(DPL),复合肌肉动作电位(CMAP)的波幅、时限,检测数据进行t检验。
- Such results indicated the compound nerve action potential (CNAP) amplitude drop was dependent on the strain level and independent of strain rate. 其结果显示,在两个不同应变速率下,神经的电传导性并没有显著的差异,且神经电位减少的程度取决于应变的大小而跟应变速率 无关。
- MethodsThe influence of Radix Aconiti Kusnezoffiion amplitude and conduction velocity of compound action potential of sciatic nerve of toad was observed in vitro. 方法观察草乌水煎液对蟾蜍离体坐骨神经复合动作电位的振幅和传导速度的影响。
- Action potential (AP) parameters were recorded in the NZ and AZ. 记录两区的动作电位(AP)参数。
- Objective To explore the change pattern of fibrillation potential amplitude in human denervated skeletal muscle and its relationship with denervated muscles. 目的研究失神经支配肱二头肌纤颤电位波幅的变化规律,并探索其与肌肉萎缩程度的关系。
- It was shown that EBP could prolong APD_(20) and APD_(90) (at 20% and 90% of repolarization in action potential duration)markedly, while over shoot(OS), resting potential(RP), amplitude of the action Potential(APA)and V_(max) were not affected. 结果表明EBP能明显延长APD_(20)和APD_(90)。 但对动作电位幅度(APA)静息电位(RP),超射(OS)和零期最大上升速率(V_(max))无显著影响。
- Coronary occlusion resulted in significant diminution in amplitude of action potential (APA) and maximal depolarization rate of phase O (dv/dt), and decrease in action potential duration at 50% repolarization (APD_(50)) and 90% repolarization (APD_(90)). 阻断冠脉引起动作电位振幅(APA)和零期最大除极速度(dv/dt)明显降低以及复极50%25时程(APD_(50))和复极90%25时程(APD_(90))明显缩短。
- Computer Simulation Studies of Motor Unit Action Potentials. 本文是由中国工程院院士王威琪教授审查、推荐的。
- It is well established that the cardial contraction is initiated when an action potential depolarizes the sarcolemma. 已经确证,心肌收缩始于动作电位使肌膜去极化。
- Class III anti-arrhythmic drugs (such as amiodarone) act ia prolongation of the action potential. III类抗心律失常药物(例如胺碘酮)是通过延长动作电位来发挥作用的。
- Fibrillation Potential Amplitude After Denervation 神经切除术后神经纤维震颤可能的振幅
- Stimulating a nerve fiber causes an action potential to spread across the nerve cell, making it contract. 刺激神经纤维导致动作电位传遍神经细胞,从而使之收缩