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Company: Fine Science Tools
Catalog#: 11000-13
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Characterization of Hippocampal Adult-borne Granule Cells in a Transient Cerebral Ischemia Model
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Date:
2021-01-20
[Abstract]  

Long-term consequences of stroke significantly impair the quality of life in a growing population of stroke survivors. Hippocampal adult neurogenesis has been hypothesized to play a role in the pathophysiology of cognitive and neuropsychiatric long-term sequelae of stroke. Reliable animal models of stroke are paramount to understanding their biomechanisms and to advancing therapeutic strategies. We present a detailed protocol of a transient cerebral ischemia model which does not cause direct ischemic damage in the hippocampus, allowing investigations into the pathophysiology of long-term neurocognitive deficits of stroke. Furthermore, we describe a protocol for obtaining acute hippocampal slices for the purpose of electrophysiological and morphological characterization of adult-borne

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[摘要]  [摘要]中风的长期后果严重损害了越来越多的中风幸存者的生活质量。假定海马成年神经发生在中风的认知和神经精神病学长期后遗症的病理生理学中起作用。可靠的中风动物模型对于理解其生物机制和推进治疗策略至关重要。我们提出 暂时性脑缺血模型的详细协议,该模型不会在海马体中引起直接缺血损伤,从而可以研究中风的长期神经认知缺陷的病理生理学。此外,我们描述了一种用于获取成人海马颗粒细胞的电生理学和形态学特征的急性海马切片的协议。还讨论了与从小细胞(例如未成熟的成年颗粒细胞)进行电生理记录有关的特殊性。本协议可以通过多模式研究(行为,形态结构,生化)加以补充,以期有希望促进研究和中风的长期后遗症的发展以及发现新的治疗机会。

[背景]中风是在发达国家发病率和死亡率的重要原因引起急性和延迟赤字。虽然针对缺血性中风恢复血流的干预策略在降低急性发病率和死亡率方面已经变得更加有效,但中风的长期后果(如中风后抑郁和中风后认知功能障碍和痴呆症)目前正在逃避临床治疗(Wang等。,2010; Loubinoux等人,2012; Mijajlovic ...

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 ...

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