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Company: Fine Science Tools
Catalog#: 91003-12
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Long-term Devocalization of Zebra Finches
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Date:
2020-09-20
[Abstract]  Songbirds, such as the zebra finch, are a popular animal model for studying the neural basis of vocal and complex skill learning. Adult male zebra finches produce courtship song toward females (referred to as ‘directed song’) and recording and analyzing sounds of directed song along with underlying neural activity is important for investigating behavioral and neural mechanisms of song production and learning. However, recording of directed song is easily contaminated by calls that are often as loud as directed songs and frequently produced by a female bird is presented in the same sound-recording chamber to elicit directed song. We developed a new surgical procedure to relatively easily and almost completely devocalize female zebra finches semi-permanently, without affecting other ... [摘要]  [摘要 ] 鸣禽(例如斑马雀科)是一种流行的动物模型,用于研究声音和复杂技能学习的神经基础。成年男性斑马雀对女性产生求爱歌曲(被称为“定向歌曲”),记录和分析定向歌曲的声音以及潜在的神经活动对于调查歌曲产生和学习的行为和神经机制很重要。然而,定向歌曲的记录容易被通常与定向歌曲一样响亮并且通常由雌鸟产生的呼叫污染在同一录音室中以引起定向歌曲。我们开发了一个新的 外科手术程序可以相对轻松地,几乎完全消除半永久性地消除雌性斑马雀,而不会影响其他行为。此程序使研究人员可以录制定向歌曲,几乎不会受到女性呼叫的污染。该程序也可以用来消除雄鸟的声音,因此,对于各种实验目的,例如长期消除雄鸟唱歌过程中的听觉反馈,具有很大的潜力。

[背景 ] 正如人类婴儿学习与成人产生复杂的语音声音,年轻的鸣禽学习产生复杂发声(即在发展的关键时期,从成年导师,歌曲)。由于生命科学研究中的普通动物模型(例如小鼠和猴子)不表现出声音学习,因此鸣禽为研究声音学习的神经基础(人类语言获取的重要要素)提供了绝佳的机会(Doupe和Kuhl,1999; Bolhuis 等)等人,2010)。此外,鸟类的鸣叫学习严重依赖于神经节- 丘脑- ...

D-serine Measurements in Brain Slices or Other Tissue Explants
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Date:
2018-01-20
[Abstract]  D-serine is an atypical amino acid present in the mammalian body (most amino acids in the mammalian body are L-isomers) that is mostly known in neuroscience for its role as a co-agonist controlling the N-methyl D-aspartate receptor (NMDAR). D-serine levels are decreased in patients with schizophrenia and this is thought to mediate, at least in part, the hypofunction of NMDARs that is central to the glutamate hypothesis for the etiology of this neuropsychiatric disorder. D-serine detection was first established using high performance liquid chromatography, a costly and complex technique that requires high levels of expertise. But with the increasing interest in this unconventional amino acid, there is an increasing need for easier, cheaper and more accessible detection methods. Here we ... [摘要]  D-丝氨酸是存在于哺乳动物体内的非典型氨基酸(哺乳动物体内的大部分氨基酸是L-异构体),其在神经科学中主要是作为控制N-甲基D-天冬氨酸受体的共激动剂的作用而已知的NMDA受体)。精神分裂症患者的D-丝氨酸水平降低,这被认为至少部分地介导了NMDARs功能减退,这种谷氨酸假说对于这种神经精神障碍的病因至关重要。 D-丝氨酸检测首先使用高效液相色谱法建立,这是一种昂贵且复杂的技术,需要高水平的专业知识。但随着对这种非常规氨基酸的兴趣日益增加,人们越来越需要更容易,更便宜和更容易获得的检测方法。在这里,我们描述了我们在最近的出版物(Papouin等人,2017b)中采用的安培法,基于生物传感器的方法。它可以对新鲜组织的D-丝氨酸水平进行可靠的测量,如急性脑切片,浓度高于100 nM,技术要求最低。

【背景】N-甲基D-天冬氨酸受体(NMDAR)是脑,脊髓和周围神经系统如肠神经元中神经递质谷氨酸的受体。在肾小管细胞和软骨细胞中也有发现。除谷氨酸外,NMDAR的激活需要在专用结合位点上结合共激动剂(Johnson和Ascher,1987; Kleckner和Dingledine,1988)。非常规氨基酸D-丝氨酸是神经系统众多区域中NMDAR的内源性共激动剂(参见Papouin等人,2017a)。在肝脏和肾脏中也可以发现其丰富的降解和排泄(Montesinos ...

Obtaining Acute Brain Slices
Author:
Date:
2018-01-20
[Abstract]   Obtaining acute brain slices for electrophysiology or amperometric recordings has become a routine procedure in most labs in the field of neuroscience. Yet, protocols describing the step by step process are scarce, in particular for routine acute preparations such as from the mouse hippocampus. Here we provide a detailed protocol for the dissection, extraction and acute slicing of the mouse brain, including tips and list of material required. [摘要]  在神经科学领域的大多数实验室中,获得用于电生理学或电流记录的急性脑切片已经成为常规手术。 然而,描述逐步过程的方案是稀缺的,特别是对于例如来自小鼠海马的常规急性制剂。 在这里,我们提供了一个详细的协议,解剖,提取和急性切片的小鼠大脑,包括技巧和所需材料清单。

【背景】随着体外电生理和电流记录技术的民主化,从啮齿动物大脑获取急性切片已经成为神经科学研究中经典和关键的步骤。然而,实现这一程序所需的技术诀窍通常是口头传递的,大多数实验室已经开发了自制的食谱,并根据自己的需要或感兴趣的区域调整了最重要的步骤,从而缺乏描述如何逐步获得高质量的急性脑切片。虽然可以发现一些方案描述特别具有挑战性的准备,例如成年小鼠脊髓的急性切片(Garre等人,Bioprotocol 2017: https://doi.org/10.21769/BioProtoc.2102 ),描述了更多日常准备的基本程序( ...

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