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Ultrafine, single Deer Hair with handle

“刷子,骆驼头发,红黑貂,超细睫毛,超细鹿头发钢,黄铜,玻璃纤维,防静电刷“

公司名称: Ted Pella
产品编号: 119
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FM1-43 Photoconversion and Electron Microscopy Analysis at the Drosophila Neuromuscular Junction
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Date:
2017-09-05
[Abstract]  We developed a protocol for photoconversion of endocytic marker FM1-43 followed by electron microscopy analysis of synaptic boutons at the Drosophila neuromuscular junction. This protocol allows detection of stained synaptic vesicle even when release rates are very low, such as during the spontaneous release mode. The preparations are loaded with the FM1-43 dye, pre-fixed, treated and illuminated to photoconvert the dye, and then processed for conventional electron microscopy. This procedure enables clear identification of stained synaptic vesicles at electron micrographs. [摘要]  我们开发了内吞标记FM1-43的光转换方案,然后在果蝇神经肌肉接头处进行突触引物的电子显微镜分析。 即使在释放速率非常低时,例如在自发释放模式期间,该方案允许检测染色的突触小泡。 该制剂装载有FM1-43染料,经预先固定,处理和照射,以使染料转变为染料,然后进行常规电子显微镜处理。 该方法能够在电子显微照片下清楚鉴定染色的突触小泡。
【背景】神经元发射体通过突触小泡与神经元质膜的融合而释放。囊泡可以自发融合或响应动作电位。随后,囊泡通过内吞作用获得回收。通过分子生物学,电生理学和显微镜的工具广泛研究了突触小泡回收的分子机制(Slepnev和De Camilli,2000; Sudhof,2004; Rizzoli和Betz,2005; Kavalali,2006)。加载内参标记FM1-43与染料光转换耦合,然后进行电子显微镜分析是一种强大的技术,允许调查和测量回收囊泡池(Harata et al。,2001; Schikorski and Stevens,2001; Rizzoli和Betz, 2004)。果蝇神经肌肉接头(NMJ)是具有明确定义的突触引物的有利制剂,其能够快速产生具有突变突触蛋白的细胞系和严格评估囊泡回收池(Akbergenova和Bykhovskaia,2009; ...

Detection of Reactive Oxygen Species Using MitoSOX and CellROX in Zebrafish
Author:
Date:
2016-10-05
[Abstract]  The production of free radicals is the result of normal cellular metabolism. Free radicals are involved in innumerable different cellular and biological functions such as signaling, proliferation, cell death, aging, inflammation, etc. Under physiological conditions, the levels of reactive oxygen species (ROS) are strictly regulated by the cells. However, during stressful conditions such as oxidative stress, ROS levels increase causing damages to different molecules like DNA, lipids and proteins. Increased levels of ROS have been associated with a growing list of different diseases. ... [摘要]  自由基的产生是正常细胞代谢的结果。 自由基涉及无数不同的细胞和生物学功能,例如信号传导,增殖,细胞死亡,衰老,炎症等。 在生理条件下,活性氧(ROS)的水平被细胞严格调节。 然而,在应激条件例如氧化应激期间,ROS水平增加导致对不同分子如DNA,脂质和蛋白质的损伤。 增加的ROS水平与不断增加的不同疾病列表相关联。 在这个协议中,我们使用MitoSOX和CellROX绿色氧化应激探针标记细胞内ROS和使用细胞分选和共聚焦分析检测荧光。

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