查询词典 neurons

However, a growing number of studies suggest that excessive extracellular glutamate and resultant overstimulation of its receptors cause excitotoxic roles and lead to neuronal damage in several pathological conditions such as cerebral ischemia. Normally, the excitatory postsynaptic roles of glutamate are terminated by the activities of high-affinity sodium dependent glutamate transporters that locate on neuroglial cells and neurons near the synaptic cleft, which are thought to play important roles in inactivating released glutamate and keep it below toxic levels in the extracellular space.

在生理状态下，突触间隙中谷氨酸的清除取决于邻近神经胶质细胞及神经元上高亲和力、钠依赖性谷氨酸载体的活动，通过该载体的再摄取机制保持细胞外谷氨酸浓度于正常范围，这在预防谷氨酸的神经毒中起着重要的作用。

Ultimately, vulnerable groups of neurons atrophy and die in a process that may involve excitotoxicity (overstimulation of neurotransmitter receptors on neuronal surface membranes), collapse of calcium homeostasis, inflammation, and depletion of energy and growth factors. A form of apolipoprotein E, apoE4, contributes to the abnormal accumulation of A and tau, but probably also damages mitochondria and the cellular cytoskeleton. A , tau, apoE and -synuclein interact with many other molecules and modulate diverse signalling cascades that regulate neuronal activity and survival.

最后，易感神经元会萎缩直至死亡，原因可能有兴奋性中毒（神经递质对神经元表面受体的过度刺激引起），钙稳态失衡，炎症反应，能量和生长因子的耗尽。apoE4的产生可导致A肽和tau蛋白的异常聚合，可能也损害线粒体和细胞骨架。A肽、tau蛋白、apoE和突触核蛋白可与很多分子反应，也可调节不同信号级联反应，这些级联反应对于维持神经元活动性和生存性意义重大。

The synchronous activation of the few thousand oxytocin producing neurons is an example of "emergent" process.

数千的催产素生产神经元的同步激活是"突然发生"过程的一个例子。

STN neurons have pacemaking activitiy and their firing pattern can switch from spike mode to bursting mode when membrane potential becomes hyperpolarized.

具有节律性及自发放电特性的STN，有著独特的电气生理特性，在较负的膜电位状况，STN会由棘波式放电转换成丛集式放电。

Compared with danshensu, after the mice were injected with salvianolic acid, more positive neurons of nestin were detected in pallium and striatum corpora.

丹酚酸组侧脑室周围的阳性细胞数量多，而且在皮质和尾壳核检测到大量的阳性细胞。

Winklhofer and her colleagues have shown earlier that Parkin can protect neurons under various stress conditions.

Winklhofer和他的同事早在之前就证实二乙嗪可以保护神经细胞免受各种压力条件。

Networks with too many input variables or ton many hidden neurons,providing a good accuracy for typical conditions, are more prone to such behavior than the parsimoniously designed networks.

网络以许多输入变数或吨许多暗藏的神经元，提供好准确性为典型的情况，比节俭被设计的网络是易受这样行为。

Over supply and high partial pressure of oxygen can bring about toxicity effect on neurons.

在过高的氧压下，高压氧作为一种神经毒性因子发挥作用，可导致惊厥。

Correspondingly, the strong expression of hsp70 protein in neurons of the penumbra at 24 hour s allows it to serve as a reliable anatomic marker of that zone.

相应地，在24小时内半暗带神经元内的hsp70蛋白质的强烈表达使得它可以被作为那个区域的可靠的解剖学标记。

POMC neurons are medium and large sizes, displaying a quadrangular or multipolar perikaryon with a variable number of primary dendrites, well-ramified dendrites.

POMC神经元细胞体较大，成四边形或多极核周体，一级树突数量不定，且分支较多。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新