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Prism RTM Refrigerated MicroCentrifuge

Company: Labnet International
Catalog#: C2500-R
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Extraction of RNA from Recalcitrant Tree Species Paulownia elongata
Author:
Date:
2018-07-20
[Abstract]  Isolation of pure RNA is the basic requisite for most molecular biology work. Plants contain polyphenols and polysaccharides, which can interfere with isolation of pure RNA from them. Especially hardwood tree species like Paulownia elongata have surplus amount of RNA-binding alkaloids, proteins and secondary metabolites that can further complicate the process of RNA extraction. Paulownia elongata is a fast-growing tree species which is known for its role in environmental adaptability and biofuel research. Here we describe an economical, efficient and time-saving method (2 h) to extract RNA from leaf tissues of the tree Paulownia elongata. Lack of DNA contamination and good RNA integrity were confirmed using RNA Gel electrophoresis. The purity of RNA was ... [摘要]  纯RNA的分离是大多数分子生物学工作的基本要求。植物含有多酚和多糖,它们可以干扰从它们中分离纯RNA。特别是像泡桐(Paulownia elongata)这样的硬木树种具有过量的RNA结合生物碱,蛋白质和次级代谢物,这些可以进一步使RNA提取过程复杂化。 泡桐(Paulownia elongata)是一种快速生长的树种,以其在环境适应性和生物燃料研究中的作用而闻名。在这里,我们描述了一种经济,有效和省时的方法(2小时)从树的叶组织中提取RNA 泡桐(Paulownia elongata)。使用RNA凝胶电泳证实缺乏DNA污染和良好的RNA完整性。使用Nanodrop分光光度计确认RNA的纯度,其显示A 260 :A 280 比率为约2.0。纯化的RNA成功用于下游应用,例如RT-PCR(逆转录PCR)和qPCR(定量PCR)。该方法可用于从其他几种顽拗型树种中提取RNA。

【背景】泡桐是一种广泛分布的树,属于泡桐科(Zhu et al。,1986)。它以其高适应性和快速增长率而闻名(Chaires et al。,2017)。由于其高稳定性,低导热性,腐烂和腐烂抗性等,泡桐木材正在受到来自世界各地的需求。(Ayrilmis和Kaymakci,2013)。除此之外, P.还已知细菌对各种生物和非生物胁迫具有耐受性(Chaires et ...

Qualitative and Quantitative Assay for Detection of Circulating Autoantibodies against Human Aortic Antigen
Author:
Date:
2017-07-05
[Abstract]  Increased amount of autoantibodies in human sera are the hallmark of autoimmune diseases (Wang et al., 2015). In case of known antigen, detection of autoantibodies is done using laboratory based methods. However, in most autoimmune diseases, knowledge of self-antigen is still vague. We have developed an ELISA-based quantitative assay to detect the presence of autoantibodies as well as to measure the circulating autoantibodies in the sera of patients suffering from large vessel vasculitis (LVV), an autoimmune disease (Chakravarti et al., 2015). Using this assay, we detected the increase in anti-aortic antibodies in LVV patient’s sera. We have further verified the results by independent biochemical techniques and found the specificity to be > 94% (Chakravarti et al. ... [摘要]  人血清中自身抗体量的增加是自身免疫性疾病的标志(Wang等人,2015)。 在已知抗原的情况下,使用基于实验室的方法检测自身抗体。 然而,在大多数自身免疫性疾病中,自身抗原的知识仍然是模糊的。 我们已经开发了基于ELISA的定量测定法来检测自身抗体的存在以及测量患有大血管血管炎(LVV),自身免疫疾病(Chakravarti等人)的患者的血清中的循环自身抗体, ,2015)。 使用该测定,我们检测到LVV患者血清中抗主动脉抗体的增加。 我们通过独立生物化学技术进一步验证了结果,发现特异度 94%(Chakravarti等人,2015)。 该方法可以被独特地修改以适应任何自身免疫,特别是器官特异性疾病,因此在自身抗体的检测和定量中具有更广泛的应用。
【背景】约有80-100种自身免疫性疾病,其中免疫细胞将自身蛋白识别为外源抗原,并被激活以产生体液应答。尽管大多数自​​身免疫性疾病的触发因素仍然是一个谜,患者血清中存在较高水平的抗体是非常普遍的(Wang等人,2015)。一些实例包括抗小血管血管炎中的嗜中性粒细胞胞浆抗原,多发性硬化中的髓磷脂碱性蛋白,1型糖尿病中的谷氨酸脱羧酶等。(Wang等人, ...

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