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Surgical Scissors - Large Loops

外科剪刀 - 大环

Company: Fine Science Tools
Catalog#: 14101-14
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An ex vivo Perifusion Method for Quantitative Determination of Neuropeptide Release from Mouse Hypothalamic Explants
Author:
Date:
2017-08-20
[Abstract]  The hypothalamus is a primary brain area which, in mammals, regulates several physiological functions that are all related to maintaining general homeostasis, by linking the central nervous system (CNS) and the periphery. The hypothalamus itself can be considered an endocrine brain region of some sort as it hosts in its different nuclei several kinds of neuropeptide-producing and -secreting neurons. These neuropeptides have specific roles and participate in the regulation of homeostasis in general, which includes the regulation of energy metabolism, feeding behavior, water intake and body core temperature for example.

As previously mentioned, in order to exert their effects, these peptides have to be produced but also, and mostly, to be secreted. In this context, it is of ...
[摘要]  下丘脑是一个主要的脑区域,在哺乳动物中,通过连接中枢神经系统(CNS)和周围环境来调节与维持一般体内平衡有关的几种生理功能。下丘脑本身可以被认为是某种类型的内分泌大脑区域,因为它在其不同的核中存在几种神经肽产生和分泌神经元。这些神经肽具有特定的作用并参与一般的体内平衡调节,其中包括调节能量代谢,摄食行为,进水量和身体核心温度。
   如前所述,为了发挥其效果,必须产生这些肽,而且大部分是分泌的。在这种情况下,能够评估某些病症,疾病或治疗如何能够真正影响神经肽的分泌以及不同的神经肽能电路的功能是非常重要的。
   评估这一点的一种方法是下丘脑外植体的渗透,然后定量收集的部分中的肽。
   在这里,我们逐步解释如何在体外渗出下丘脑外植体中收集分数,其中可以从这些活的分离组织定量测定神经肽/神经激素释放。下丘脑渗出与其他现有测定相比有两大优点:(1)允许药理学操作来解剖下丘脑外植体中不同神经肽/神经激素释放的信号传导机制,以及(2)允许在多种下丘脑制剂上同时进行不同条件的实验,(3)据我们所知,这是允许研究神经肽分泌在基础条件下和用同样的下丘脑外植体反复刺激的唯一方法。
【背景】已经经常使用渗透研究胰岛功能。然而,该测定原则上适用于任何内分泌组织和任何肽或蛋白质分泌。
   事实上,过去已经使用了不同的渗透系统,并且仍然是不同研究实验室在各种条件下研究下丘脑神经肽释放的有效程序。例如,Callewaere及其同事在2006年发表了一项研究,分析了趋化因子SDF-1(基质细胞衍生因子-1)对血管舒张素诱导的AVP(精氨酸 ...

Mouse Subependymal Zone Explants Cultured on Primary Astrocytes
Author:
Date:
2016-07-20
[Abstract]  Neuroblast migration is a major component in the process of neuronal circuit assembly. In the rodent postnatal brain, the subependymal zone (SEZ) is the largest neurogenic niche where new neurons are born throughout life. These cells migrate several millimeters following a specific pathway called the rostral migratory stream (RMS) towards the olfactory bulb. Once they reach their final destination, they differentiate mainly as interneurons and integrate into already established neuronal circuits. Along the RMS, neuroblasts use a particular mode of migration known as chain migration. They stay attached to each other while migrating and are intimately associated with adjacent astrocytic processes. To dissect the molecular and cellular signals involved in neuroblast migration, we developed ... [摘要]  神经母细胞迁移是神经元电路组装过程中的主要组成部分。 在啮齿动物出生后的大脑中,子宫颈区(SEZ)是新生神经元生命中最大的神经源性生态位。 这些细胞沿着称为传播流(RMS)的特定途径朝向嗅球迁移几毫米。 一旦达到其最终目的地,它们主要区分为中间神经元并整合到已建立的神经元回路中。 沿着RMS,神经母细胞使用称为链转移的特定迁移模式。 它们在迁移时保持相互依赖,并与相邻的星形细胞过程密切相关。 为了解剖神经母细胞迁移中涉及的分子和细胞信号,我们开发了一种体外系统,其由在星形胶质细胞单层顶部共培养的经SEZ衍生的外植体组成。

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