查询词典 presynaptic

LTP is though to involve the release of one or more retrograde messengers from the postsynaptic cell that act on the presynaptic terminal to enhance glutamate release. One candidate retrograde messenger is the membrane permeant gas NO.

NO从突触后释放通过扩散作用于突触前膜，起逆向信使的作用，增加突触前谷氨酸的释放，使突触前突触后共同参与形成LTP。

A major challenge in studying the synapse is how to tell what observed effects are due to presynaptic factors and which to postsynaptic ones.

研究突触最大的困难在于如何区辨所观察到的反应是来自突触前或突触后因子所导致。

The identification of protein were performed by searching the mass spectrometry data from the NCBInr database using the software of Sequest Bioworks3. 2. The results indicated that over 25 protein components including acid and basis phospholipase A2, nerve growth factor, presynaptic neurotoxin, hemorrhagic factor, thrombin-like enzyme, serine protease, glycogen synthase, metalloproteinase, maturase, L-amino acid oxidase, plasminogen activator, adhesion, cysteine-rich secretory protein, disintegrin, fibronectin-binding protein, fibrinogen clotting inhibitor A chain, vascular apoptosis-inducing protein 1, pyranose 2-oxidase, carbamoyl-phosphate synthase, as well as the homology proteins of snake venom ablomin, ablomin, catrin, mucrofirase, pallabin, salmosin and triflin homologues were identified from the GSSV.

从GSSV中鉴定出超过25种蛋白组分，主要包括：酸性磷脂酶A1、碱性磷脂酶A2、神经生长因子、突触前神经毒素、出血因子、类凝血酶、丝氨酸蛋白酶、糖原合酶、金属蛋白酶、成熟酶、L-氨基酸氧化酶、纤溶酶源激活物、外源凝集素、富含半胱氨酸分泌酶、去整合素、纤连蛋白结合蛋白、纤维蛋白原凝固抑制因子A、血管凋亡诱导蛋白1、氨甲酰基磷酸合成酶、吡喃糖－2-氧化酶以及ablomin， catrin， mucrofirase， pallabin， salmosin和triflin的同源蛋白。

The results suggest that there is prominent short-term synaptic depression in the rat thalamocortical visual pathway. Presynaptic transmitter depletion and postsynaptic GABAergic inhibition are the main possible mechanisms of this synaptic depression. The short-term synaptic depression is helpful in neuronal correlated firing detection.

以上结果表明：丘脑皮层视觉通路具有显著的短时程突触抑制特性，突触前的递质耗竭和突触后的GABA能抑制系统很可能是产生视通路短时程突触抑制作用的主要机制，突触抑制作用有助于视觉系统对同步发放活动的检测。

Loss of these gradients depolarizes cell membranes, leading to the influx of calcium through voltage-gated calcium channels and triggering the release of neurotransmitters such as glutamate from presynaptic nerve terminals.

GLU与突触后神经元膜上的受体相结合，导致钠离子和钙离子内流，引起一系列的生物化学级联反应。

Notably, depletion of endoplasmic reticulum Ca2+ stores by thapsigargin, or blockade of Ca2+ release from these stores by ryanodine receptor inhibitors, mimics and occludes the effects of presynaptic presenilin inactivation.

值得注意的是，毒胡萝卜素存储内质网Ca2+的缺失或兰尼受体拮抗剂诱导的Ca2+释放阻滞将会模拟并阻止该作用的发生。

These changes, which depend on transcription and translation, include formation of motile presynaptic filopodia, elaboration of undifferentiated varicosities, and potentiation of spontaneous release frequency.

这种依赖转录和翻译的变化包括动力型突触前丝状伪足的形成和未分化神经膨体的修饰，以及自发释放频率的增强等。

Theoretically, through blocking presynaptic serotonin reuptake, meperidine may induce or interact with other serotonergic agents and result in serotonin hyperstimulation.

理论上，透过阻止於突触间隙前的血清素再吸收，meperidine可能诱发或与其他促血清素药物互动导致血清素超量刺激。

Interference with presynaptic vesicle fusion by exposure to tetanus toxin reverted functional to silent transmission, implicating SNARE-mediated fusion as a determinant of the ratio of NMDA:AMPA receptor activation.

以破伤风毒素干扰前突触链胞分泌，影响了无讯号传导，并显示以SNARE造成的分泌，决定NMDA受体与AMPA受体的激发的比率。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。