查询词典 tectal

Here we demonstrate by in vivo time-lapse imaging of optic tectal cells in Xenopus laevis tadpoles that enhanced visual activity driven by a light stimulus promotes dendritic arbor growth.

在此，我们使用视觉非洲爪蟾蝌蚪顶盖细胞活体延时成像证明，轻微刺激下增强的视觉活动促进树突棘生长。

Experiments were performed to study the voltage-dependence of mIPSC frequency and amplitude using patch-clamp technique with whole cell recording in optic tectal slices of Xenopus.

采用全细胞记录膜片钳技术，研究非洲爪蟾脑片视顶盖神经元mIPSC频率和振幅对电压依赖关系。

Key words Voltage-dependence miniature inhibitory postsynaptic current tectal neuron slice depolarization membrane potential Xenopus.

电压依赖性；微突触后电流；视顶盖神经元；脑片；去极化；膜电位；非洲爪蟾

By combining the cre/loxP and Gal4/UAS systems under the control of brn3a-hsp70, the authors zeroed in on the somatic origin and final projection sites of individual tectal neurons.

通过在转录因子brn3a－热休克蛋白70的控制下结合cre/loxP系统（一种对转入基因进行组织特异性、定点操作的基因重组系统）和Gal4/UAS系统，作者在躯体的起点和个体顶盖神经元的最后投射区域调了一个零点。

Neropeptide Y, a 36-amino acid peptide, is abundantly and widely distributed in both the central nervous systemand the peripheral nervous System, especially in telencephalon, preoptic area, optic tectal slices and hypothalamus.

神经肽Y(Neuropeptide Y，NPY)是一种由36个氨基酸组成的多肽，广泛分布于中枢神经系统和外周神经系统中，尤其在端脑、视前区、视项盖以及下丘脑含量丰富。

By combining the cre/loxP and Gal4/UAS systems under the control of brn3a-hsp70, the authors zeroed in on the somatic origin and final projection sites of indiidual tectal neurons.

通过在转录因子brn3a－热休克蛋白70的控制下结合cre/loxP系统（一种对转入基因进行组织特异性、定点操作的基因重组系统）和Gal4/UAS系统，作者在躯体的起点和个体顶盖神经元的最后投射区域调了一个零点。

Results:Three important MRI feat ures of brain stem gliomas were found:①enlargement of brain stem contour.Using different sequences and planes the precise tumor location could be obtained.Sagittal scan could well display the early stage of brain stem glioma,the tectal glioma and cervicomedullary junction glioma.

结果：MRI表现有以下3个特征：①肿瘤使脑干的外形增大，通过不同序列和断面显示肿瘤的精确部位，矢状面对于显示胶质瘤的早期改变、顶盖部位及延髓颈髓联合部位的胶质瘤具有独特作用。

Synaptic inputs activated repetitively within 20 ms before spiking of the tectal neuron become potentiated, whereas subthreshold inputs activated within 20 ms after spiking become depressed.

在四叠体突触尖波20ms前连续被激发的突触输入将造成突触电位化，然而在尖波产生的20ms后的小于临界输入将造成突触抑制。

The results indicated that GABAmay be the important inhibitory neuropeptides; VIP,β-EP, SP also involved in theregulation of the GnRH. Optical information may control the chicken productionperformance by adjusting the distribution of GABA, VIP andβ-EP neuropeptides withinthe nuclei related to the tectal layerⅠ.

结果表明，GABA可能是峡核和GLv核主要的抑制性神经肽，VIP、SP和β-EP也参与GnRH分泌的调控，光信息可能通过调节峡核-顶盖通路和顶盖-GLv通路中的GABA、VIP、SP和β-EP几种神经肽的分布来调控GnRH的分泌，进而调节鸡的生产性能。

We tested whether inhibitory GABAergic synaptic transmission regulates Xenopus optic tectal cell dendritic arbor development in vivo by expressing a peptide corresponding to an intracellular loop ofthe gamma2 subunit of type A GABA receptors GABA(AR, which is required to anchor GABA receptors to the postsynaptic scaffold.

我们想证明如下设想：抑制性GABA能突触传递是否能调节早蟾视顶盖细胞的树突发育。因为GABA受体的gamma2亚基有一段细胞内的跨膜端序列，这段序列对锚定GABAA受体到突触后膜是必须的，所以我们的主要方法是设计了一段特异性的争对细胞内段的序列，这样就特异性的阻断了单个细胞GABA能的突触传递。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

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集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐