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BD IntramedicTM Polyethylene Tubing (Non-Sterile)

Intramedic TM聚乙烯管

Company: BD
Catalog#: 427401
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Analysis of the Virulence of Uropathogenic Escherichia coli Strain CFT073 in the Murine Urinary Tract
Author:
Date:
2017-02-05
[Abstract]  This urinary tract infection model was used to monitor the efficacy of a new virulence factor of the uropathogenic Escherichia coli strain CFT073 in vivo. The new virulence factor which we designated TIR-containing protein C (TcpC) blocks Toll-like receptor signaling and the NLRP3 inflammasome signaling cascade by interacting with key components of both pattern recognition receptor systems (Cirl et al., 2008; Waldhuber et al., 2016). We infected wild type and knock-out mice with wildtype CFT073 and a mutant CFT073 strain lacking tcpC. This protocol describes how the mice were infected, how CFT073 was prepared and how the infection was monitored. The protocol was derived from our previously published work and allowed us to demonstrate that TcpC ... [摘要]  该尿路感染模型被用于监测新生的致病性大肠杆菌菌株CFT073在体内的功效。我们指定含TIR的蛋白C(TcpC)的新的毒力因子通过与模式识别受体系统的关键组分相互作用来阻断Toll样受体信号传导和NLRP3炎性信号级联反应(Cirl等人)。 ,2008; Waldhuber等人,2016)。我们用野生型CFT073和缺乏tcpC的突变体CFT073菌株感染野生型和敲除小鼠。该协议描述了小鼠如何感染,如何制备CFT073以及如何监测感染。该方案源于我们以前发表的工作,并允许我们证明TcpC是一种强大的毒力因子,通过增加CFT073在尿液和肾脏中的细菌负担。此外,TcpC负责肾脓肿的发展,因为感染具有野生型但不是tcpC的缺乏CFT073突变体的小鼠引起这种并发症。

背景 尿路感染(UTIs)是全世界最常见的细菌感染(Dielubanza和Schaeffer,2011),主要是由欧洲病原大肠杆菌(UPEC)引起的(Zhang和Foxman,2003)。复发性感染率高(Dielubanza和Schaeffer,2011),抗生素抗性E的出现也有所增加。大肠杆菌菌株(Eurosurveillance editorial,2015)。因此,为了开发新的治疗剂,对宿主和细菌因子对尿路感染病理生理学的了解具有很高的相关性。
 鼠类UTI模型系统是主要使用的动物模型系统,用于研究UPEC分离株和细菌 ...

House Dust Mite Extract and Cytokine Instillation of Mouse Airways and Subsequent Cellular Analysis
Author:
Date:
2016-07-20
[Abstract]  Asthma is a complex disease of the airways primarily mediated by T helper 2 cells and innate lymphoid type 2 cells (Licona et al.,2013). Mice do not develop spontaneous asthma and therefore models have been developed for the assessment of key processes that underlie human pathology (Nial et al.,2008). Exposure to House Dust Mite (HDM) extract induces many key features of acute airway inflammation including elevated IgE levels, eosinophilia, goblet cell metaplasia, epithelial hypertrophy and airway hyperresponsiveness (AHR) in response to methacholine (Hammad et al., 2009; Dullaers et al., 2012; Coquet et al., 2015). The exact dose and duration of exposure to HDM can affect the type and extent of inflammation. In our case, we start with a low ... [摘要]  哮喘是主要由T辅助细胞2和先天淋巴2型细胞介导的气道的复杂疾病(Licona等人,2013)。小鼠不发展自发性哮喘,因此已经开发了用于评估作为人类病理学基础的关键过程的模型(Nial等人,2008)。暴露于房尘螨(HDM)提取物诱导急性气道炎症的许多关键特征,包括升高的IgE水平,嗜酸性粒细胞增多,杯状细胞化生,上皮肥大和响应乙酰甲胆碱的气道高反应性(AHR)(Hammad等人, ,2009; Dullaers等人,2012; Coquet等人,2015)。暴露于HDM的确切剂量和持续时间可以影响炎症的类型和程度。在我们的情况下,我们从在攻击时增加的低致敏剂量开始,而其他的在小鼠致敏期间使用不同的方案或更高的抗原浓度(Hondowicz等人,2016; Trompette < et="" al="" 。,2014; ="" zaiss="" et="" al="" 。,2015)。我们认为使用低敏感剂量更准确地分离初级和次级免疫应答,并降低致敏过程中给予的hdm继续刺激攻击期间的免疫应答的可能性(coquet等人,2015;="" plantinga="" et="" al="" 。,2013)。在这里,我们在文本,图片和视频中概述了如何通过鼻内途径施用hdm提取物或细胞因子,并简要地谈谈随后在气道中的炎症的分析[在han&="">

Non-invasive Intratracheal Instillation in Mice
Author:
Date:
2015-06-20
[Abstract]  The intratracheal instillation technique is used to deliver a variety of agents to the lungs ranging from pathogens (bacteria, viruses), toxins, to therapeutic agents. To model lung inflammation and injury, LPS can be administrated via intranasal, intratracheal, or aerosol approaches. Each technique has its limitations. The intratracheal technique can involve the non-invasive instillation method (via the oro-tracheal route) or a direct injection into the trachea. Here, we describe an optimized method for direct visual instillation of LPS via the non-invasive oro-tracheal route. [摘要]  气管内滴注技术用于将各种试剂递送到肺,范围从病原体(细菌,病毒),毒素,到治疗剂。 为了模拟肺炎症和损伤,LPS可以通过鼻内,气管内或气雾剂方法施用。 每种技术都有其局限性。 气管内技术可涉及非侵入性滴注方法(通过经气管途径)或直接注射到气管中。 在这里,我们描述了通过非侵入性气管途径直接视觉滴注LPS的优化方法。

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