超极化是指神经细胞膜的一种生理状态。膜内电位大于70毫伏,达到80毫伏,甚至90毫伏。其过程可使神经元处于暂时的抑制状态。表现为后超极化电位和抑制性突触后电位两种形式。
...体结合 ↓ 突触后膜对某些小离子(Cl ﹣ 、K + , 尤其是 Cl ﹣ )通透性↑, Cl ﹣ 内流 ↓ 突触后膜产生局部膜的超极化(IPSP) 43 44 2.动作电位在突触后神经元的产生 (Generation of Ap on postsynaptic neuron): 突触后神经元的胞体对EPSP和IPSP进行总 ...
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内皮源性超极化因子 EDHF ; endothelium-derived hyperpolarizing factor
血管内皮超极化因子 EDHF
内皮超极化因子 EDHF ; endothelium-derived hyperpolarizing factor
超极化阻滞 Hyperpolarized blocking
超极化因子 endothelium-derived hyperpolarizing factor ; EDHFs
内皮衍生超极化因子 EDHF
超极化停搏 Hyper-polarized cardiac arrest
内皮依赖性超极化因子 endothelium-derived hyperpolarizing factor ; endothelium-dependent hyperpolarizing factor ; EDHF
The change of excitability is accompanie by the alterations of other membrane properties, such as the hyperpolarization of resting membrane potential, decrease of membrane input resistance and time constant, increase of inward rectification ability et al.
并且兴奋性的降低伴随着神经元其他膜性质的改变,如静息膜电位超极化、膜输入电阻和时间常数减小、膜内向整流性质增强等。
参考来源 - 吗啡戒断大鼠伏核神经元兴奋性的改变The hyperpolarization stimulus can induce rebound hyperpolarization in a few substantia gelatinosa neurons.
4.超极化刺激能引起少数脊髓胶质层神经元产生超极化反跳现象。
参考来源 - 脊髓背角初级传入与放电模式关系及超极化反跳现象的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
采用耦合微扰(CPHF)方法在 HF/6-31G 水平上对巴比妥酸衍生物的第一超极化率进行了计算。
The first hyperpolarizability is studied at HF/6-31G level by coupled perturbed Hartree-Fock (CPHF) method.
大多数神经元在接受去极化刺激时出现明显的慢后超极化电位或电流。
Most of these neurons showed a prominent slow after - hyperpolarization potential or current in response to depolarizing pulse.
在此基础上用TDHF方法计算了分子的线性极化率、一阶和二阶超极化率。
The linear polarizabilities, the first-and second-order hyperpolarizabilities of these squaraines were calculated using TDHF method.
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