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Surgical scissors

Hardened Fine Scissors

Company: Fine Science Tools
Catalog#: 14084-09
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Spared Nerve Injury Model of Neuropathic Pain in Mice
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Date:
2018-03-20
[Abstract]  Experimental models of peripheral nerve injury have been developed to study mechanisms of neuropathic pain in living animals. The spared nerve injury (SNI) model in rodents is a partial denervation model, in which the common peroneal and tibial nerves are injured, producing consistent and reproducible tactile hypersensitivity in the skin territory of the spared, intact sural nerve. SNI-operated mice require less force applied to the affected limb to elicit a withdrawal behavior as compared to sham mice. This effect is observed as early as 2 days after surgery and lasts for at least 1 month. We describe detailed surgical procedures to establish the SNI mouse model that has been widely used for investigating mechanisms of neuropathic pain. [摘要]  等人,1990; Kim和Chung,1992 )。部分去神经支配模型使研究人员能够研究不同组的神经元细胞和非神经元细胞的结构和功能变化。研究可以在神经性疼痛的起始,进展(也称为急性)和维持(慢性)阶段以及在沿着疼痛途径的不同解剖部位期间进行,包括远侧与近侧周围神经纤维,背根神经节,脊髓绳索,皮质下和皮层区域。备用神经损伤(SNI)模型包括部分神经损伤,其中腓总神经和胫神经受损,在腓肠神经部位产生一致且可再现的疼痛超敏反应(Decosterd和Woolf,2000; Shields等人, ,2003)。该模型已被证明是有力的,证明了机械敏感性和热响应性的行为测量值的实质和长期变化(Bourquin等人,2006)。这些特征与临床描述的神经性疼痛疾病的主要症状密切相似。

Transplantation of Embryonic Cortical Tissue into Lesioned Adult Brain in Mice
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Date:
2017-06-20
[Abstract]  Transplantation of embryonic cortical tissue for repairing the damaged brain has provided a potential therapy for brain injury and diseases. The grafted tissue can successfully survive and participate in reestablishing the functional neural circuit of the host brain. Transplantation surgery can be combined with fluorescently labeled transgenic mice to evaluate the reconstruction of neuronal network (Falkner et al., 2016) and the repopulation of a subset of cortical cells. By using this approach, we have shown that infiltrating cells from host brain can restore the microglial population in the graft tissue (Wang et al., 2016). This protocol describes the detailed procedure of the transplantation surgery in mice, including establishing a lesion model in the host brain, ... [摘要]  移植胚胎皮质组织修复损伤的大脑已经为脑损伤和疾病提供了潜在的治疗方法。 移植组织可以成功地存活并参与重建宿主大脑的功能性神经回路。 移植手术可以与荧光标记的转基因小鼠结合,以评估神经元网络的重建(Falkner等,2016)和皮质细胞亚群的再次增殖。 通过使用这种方法,我们已经显示来自宿主大脑的浸润细胞可以恢复移植组织中的小胶质细胞群体(Wang等,2016)。 该方案描述了小鼠移植手术的详细步骤,包括在宿主脑中建立病变模型,制备胚胎皮质移植物,并将胚胎皮质移植物移植到成年大脑中。
【背景】成年大脑中的大多数神经元是后有丝分裂细胞,并且不能再生新的子细胞,这导致在患有脑损伤或疾病后自我修复成人脑的能力有限。用胚胎神经移植代替损伤的脑组织是修复成人大脑受损神经通路的潜在有效疗法之一(Tuszynski,2007)。自20世纪70年代以来,这个研究领域引起了很多关注(Das和Altman,1972; Bjorklund和Stenevi,1979年),在过去三十年中取得了显着的成功。这些研究表明,移植组织中的神经元可以成功地在宿主大脑中存活,并开发传播预测以重建宿主和供体神经元之间的突触连接(Gaillard和Roger,2000; Gaillard等,2004; Gaillard,2007; Gaillard et al ,2007; Falkner et ...

Ex vivo Culture of Fetal Mouse Gastric Epithelial Progenitors
Author:
Date:
2017-01-05
[Abstract]  Isolation and tridimensional culture of murine fetal progenitors from the digestive tract represents a new approach to study the nature and the biological characteristics of these epithelial cells that are present before the onset of the cytodifferentiation process during development. In 2013, Mustata et al. described the isolation of intestinal fetal progenitors growing as spheroids in the ex vivo culture system initially implemented by Sato et al. (2009) to grow adult intestinal stem cells. Noteworthy, fetal-derived spheroids have high self-renewal capacity making easy their indefinite maintenance in culture. Here, we report an adapted protocol for isolation and ex vivo culture and maintenance of fetal epithelial progenitors from distal pre-glandular ... [摘要]  来自消化道的鼠胎儿祖细胞的分离和三维培养代表了研究在发育过程中细胞分化过程开始前存在的这些上皮细胞的性质和生物学特征的新方法。在2013年,Mustata等人描述了在最初由佐藤等人实施的离体培养系统中分离作为球体生长的肠胎细胞祖细胞。 >(2009)增长成年肠干细胞。值得注意的是,胎儿衍生的球体具有较高的自我更新能力,使其在文化中的无限期维护变得容易。在这里,我们报告了用于分离和远离前胃腺胃生长为胃球体的胎儿上皮祖细胞的分离和离体培养和维持的修改方案(Fernandez Vallone等人, 2016)。

背景 来自腺体的小鼠成体干细胞可以在3D matrigel中离体生长,作为“迷你腺体”无限期(Barker等人,2010) 。与在EGF,Noggin和R-spondin 1存在下生长的小肠的干细胞相比,成年胃干细胞需要进一步补充Fgf10,胃泌素,Wnt3a和更高浓度的R-spondin 1以获得生产性 - 文化。相比之下,到目前为止,很少知道在发育期间排列前腺上皮细胞的胎儿细胞。到目前为止,它们的性质以及其离体的潜在生长特性未明确。基于以前的研究,确定胎儿小肠(Mustata等人,2013年)中存在的细胞,我们报告了作为球体的小鼠胎儿胃祖细胞的培养(Fernandez Vallone et al。 。,2016)。可以在2009年由佐藤等人先前报道的培养基中重复胃祖细胞以生长小肠成体干细胞,与成人型胃干细胞相反,它们不需要额外的生长因子补充(Fgf10,Wnt3a或胃泌素)。 ...

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