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Inverted Basic Microscope

Company: Olympus
Catalog#: IX51
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Dual-sided Voltage-sensitive Dye Imaging of Leech Ganglia
Author:
Date:
2018-03-05
[Abstract]  In this protocol, we introduce an effective method for voltage-sensitive dye (VSD) loading and imaging of leech ganglia as used in Tomina and Wagenaar (2017). Dissection and dye loading procedures are the most critical steps toward successful whole-ganglion VSD imaging. The former entails the removal of the sheath that covers neurons in the segmental ganglion of the leech, which is required for successful dye loading. The latter entails gently flowing a new generation VSD, VF2.1(OMe).H, onto both sides of the ganglion simultaneously using a pair of peristaltic pumps. We expect the described techniques to translate broadly to wide-field VSD imaging in other thin and relatively transparent nervous systems. [摘要]  在这个协议中,我们介绍了一种有效的方法,用于Tomina和Wagenaar(2017)中使用的电压敏感染料(VSD)加载和水蛭神经节成像。 解剖和染料加载程序是成功完成全神经节VSD成像的关键步骤。 前者需要去除覆盖水蛭节段神经节神经元的鞘,这是成功染料加载所需的。 后者需要使用一对蠕动泵同时轻柔地将新一代VSD VF2.1(OMe).H流入神经节的两侧。 我们期望所描述的技术广泛地转化为其他薄且相对透明的神经系统中的宽视场VSD成像。

【背景】双面显微镜是一种宽视野荧光成像系统,由一对精确对准的显微镜组成,用于观察来自对面的神经元制剂并且一次显示不同的焦平面(Tomina and Wagenaar,2017)。通过将该光学系统与新一代电压敏感染料(VSD),VoltageFluor(Miller等人,2012; Woodford等人,2015),荧光可以同时从不同深度的神经元捕获编码具有高保真度膜电压的信号。我们将这种泛神经元记录系统应用于药用水蛭的神经系统,我们利用电生理学方法诱发虚构行为并定量控制可识别神经元的膜电位(Tomina and ...

Human Endometrial Stem Cell Isolation from Endometrium and Menstrual Blood
Author:
Date:
2018-01-20
[Abstract]  Human endometrial stem cell/stromal cells (hEnSCs) are isolated from endometrium or menstrual blood and are recognized as a valuable cell type in tissue engineering and cell therapy. Furthermore, hEnSCs, which have CD90 (a mesenchymal marker), CD105 (endoglin), CD44, CD146 (endometrial stem cell markers) and lack CD31 (Endothelial marker), CD34 (hematopoietic marker) and CD133 on the cell surface, are a new source of mesenchymal stem/stromal cells. Additionally, these cells can be encapsulated into self-assembling peptide nanofibers as a 3D scaffold for applications in the treatment of neurodegenerative diseases. Here, we describe a protocol to isolate hEnSCs from endometrium or menstrual blood. [摘要]  人类子宫内膜干细胞/基质细胞(hEnSCs)是从子宫内膜或经血中分离出来的,在组织工程和细胞治疗中被公认为有价值的细胞类型。 此外,在细胞表面具有CD90(间充质标记),CD105(内皮糖蛋白),CD44,CD146(子宫内膜干细胞标记)和缺乏CD31(内皮标记),CD34(造血标记)和CD133的hEnSCs是新的 间充质干细胞/基质细胞的来源。 此外,这些细胞可以封装成自组装肽纳米纤维作为三维支架应用于治疗神经退行性疾病。 在这里,我们描述了从子宫内膜或经血中分离hEnSC的方案。

【背景】正在研究细胞替代治疗,作为治疗神经退行性疾病(如阿尔茨海默病,中风和脊髓损伤)的新策略(Tavakol等人,2014b; 2015; 2016a和2016c)。子宫内膜干细胞/基质细胞(hEnSCs)可以从经血(Azedi等人,2014和2017)和子宫内膜分离。这些细胞具有脂肪形成(Khanmohammadi等人,2014),成骨(Darzi等人,2012)和软骨形成(Kazemnejad等人, >,2012)分化潜力。此外,这些细胞可以与支架组合用作组织工程应用中智能细胞支架的成分(Tavakol等人,2014a; 2016b和2017)。值得注意的是,诸如外来体,微泡和其他组分的细胞区室被认为比使用全细胞的治疗更安全。 ...

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