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Dumont forceps #5

Dumont#5SF镊子

Company: Fine Science Tools
Catalog#: 11252-00
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Preparation of Teased Nerve Fibers from Rat Sciatic Nerve
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Date:
2017-10-05
[Abstract]  Compared to tissue sectioning techniques, the technique of teasing single nerve fibers provides a better way to understand the structures of myelin sheaths and axons of the peripheral myelinated nerves. This protocol describes a method for preparation of teased single nerve fibers from rat sciatic nerve. In this protocol, fixed nerves are teased into single individual fibers and arranged onto adhesion microscope slides for further immuno-staining. [摘要]  与组织切片技术相比,单神经纤维的技术提供了更好的方法来了解髓鞘和外周髓鞘神经的轴突的结构。 该方案描述了一种从大鼠坐骨神经制备调节的单神经纤维的方法。 在该方案中,将固定的神经梳理成单个单独的纤维并排列在粘附显微镜载玻片上用于进一步的免疫染色。
【背景】外周神经系统中的雪旺氏细胞围绕轴突包裹以形成绝缘髓鞘,其允许动作电位的快速传导。 显着的多层髓鞘由精细的结构组成,包括紧密的鞘,施密特 - 兰特曼切口,Cajal带,内外侧mesaxons,以及在paranodal区域的结构。 为了阐明外周神经有髓纤维的正常和异常结构,需要使用切割的神经纤维。 拔牙纤维的方法已被广泛应用于人类和啮齿类动物周围神经的研究。 在这个协议中,我们描述了一种将周围神经分为单纤维的方法,用于对周围神经的轴突或髓鞘进行进一步的形态学研究。

Craniotomy for Cortical Voltage-sensitive Dye Imaging in Mice
Author:
Date:
2016-02-05
[Abstract]  Cortico-cortical interactions play crucial roles in various brain functions. Here, we present a detailed surgical procedure for cortical voltage-sensitive dye (VSD) imaging that allows monitoring of spatiotemporal dynamics in cortical activity in living mice. Cortical neurons in the upper layers (layer 1-3) are stained with a VSD, and an image sensor with a fast sampling rate (500 Hz) detects fluorescent changes in corrective activity. The procedure includes fixing a mouse brain to a stereotaxic apparatus, craniotomy on a large cortical area, VSD staining, and wide-field imaging of cortical activity. The entire procedure can be completed in 5 h (from the administration of anesthesia to the start of cortical VSD imaging). [摘要]  皮层皮层相互作用在各种大脑功能中起关键作用。 在这里,我们提供皮质电压敏感染料(VSD)成像允许监测活体小鼠皮质活动的时空动力学的详细的外科手术。 上层(层1-3)中的皮层神经元用VSD染色,并且具有快速采样率(500Hz)的图像传感器检测校正活性中的荧光变化。 该程序包括将小鼠脑固定到立体定位装置,在大皮质区域上的颅骨切开术,VSD染色和皮层活动的宽视野成像。 整个过程可以在5小时内完成(从麻醉的施用到皮质VSD成像的开始)。

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