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Agarose

认证TM分子生物学琼脂糖

Company: Bio-Rad Laboratories
Catalog#: 1613100
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In vitro assessment of ivermectin resistance and gene expression profiles of P-glycoprotein genes from Haemonchus contortus (L3)
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Date:
2020-12-20
[Abstract]  The aim of the present protocol is to improve the methodology to identify resistance to ivermectin (IVM), one of the main anthelmintic drugs against parasitic nematodes of ruminants, using the blood-feeding nematode Haemonchus contortus as biological model. The infective larvae (L3) of H. contortus are frequently selected to perform in vitro and molecular assays to analyze problems with drug resistance. This protocol describes the procedures to conserve the integrity and quality of H. contortus larvae in different experimental assays. Two nematode isolates, resistant and susceptible to IVM, are compared to estimate the lethal effect using IVM at 1.43, 2.85, 5.71 and 11.42 mM dilutions in the non-ionic detergent Triton X-100 to conserve the ... [摘要]  [摘要]本协议的目的是使用血液喂养的线虫Haemonchus contortus作为生物学模型,改进鉴定对伊维菌素(IVM)的抗药性的方法,伊维菌素是针对反刍动物寄生线虫的主要驱虫药之一。的感染性幼虫(L 3 )的捻转血矛线虫,经常选择为PE rform体外和分子测定来分析与药物抗性的问题。该协议描述了保存捻转血吸虫完整性和质量的程序幼虫在不同的实验分析中。比较了两种对IVM具有抗药性和易感性的线虫分离物,以在非离子型清洁剂Triton X-100中以1.43、2.85、5.71和11.42 mM的IVM稀释度评估IVM的致死作用,以保留实验期间对照幼虫的活性。 (从24小时到72小时)。在过去的几十年中,使用IVM和其他驱虫药诊断的重要性要求确认易感菌株以评估最佳控制策略。中号矿石诊断的灵敏的方法是亲通过PCR技术和其他分子工具,如测序vided。在该方案中,使用10个主要的P-糖蛋白基因(1、2、3、4、9、10 ,11、12、14和16),使用逆转录和实时PCR(RT-qPCR),在与易受IVM侵害的线虫分离株相比,确认了捻转嗜血杆菌对IVM的抵抗力。

[背景] d ...

Protocol for the Preparation of Arabidopsis Meiotic Chromosome Spreads and Fluorescent in situ Hybridization
Author:
Date:
2014-04-20
[Abstract]  This protocol is a more detailed version of previous protocols (Yang et al., 2011; Bolaños-Villegas et al., 2013) developed for the examination of meiotic chromosome spreads. Meiotic chromosome spreads are useful to determine the presence of defects in chromosome pairing and segregation. The protocol also describes how to perform fluorescent in situ hybridization experiments with a centromere probe used to label chromosomes. [摘要]  该方案是为研究减数分裂染色体扩散而开发的以前方案的更详细的版本(Yang等人,2011;Bolaños-Villegas等人,2013)。 减数分裂染色体扩散可用于确定染色体配对和分离中缺陷的存在。 该方案还描述了如何使用用于标记染色体的着丝粒探针进行荧光原位杂交实验。

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