用PicoGene PCR1100系统对直接RT-qPCR方法进行临床评估,用于在排泄物中检测猫科冠状病毒,使用PicoGene PCR1100系统
Tomoyoshi Doki1, Yoko Yonezawa1, Masato Katayama2
1Laboratory of Veterinary Infectious Disease, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan.
概括
一种新的直接逆转录定量实时PCR (RT-qPCR) 方法可以快速检测猫科冠状病毒 (FCoV). 这种用户友好的工具在40分钟内提供准确的结果,有助于及时诊断猫感染性腹膜炎 (FIP).
科学领域:
- 兽医诊断 兽医诊断 兽医诊断 兽医诊断
- 分子生物学分子生物学
- 传染性疾病 传染性疾病
背景情况:
- 猫型冠状病毒 (FCoV) 引起猫型传染性腹膜炎 (FIP),这是猫的一种严重疾病.
- 常规RT-qPCR对FCoV的检测是耗时的,因为RNA提取的要求,阻碍了快速的兽医诊断.
- 及时诊断和治疗对于在猫群中管理FIP至关重要.
研究的目的:
- 评估一种用于快速检测FCoVRNA的新型直接RT-qPCR方法.
- 评估PicoGene PCR1100系统用于FCoV诊断的性能.
- 在兽医实践中确定FCoV检测工具的实用性.
主要方法:
- 开发了一个直接的RT-qPCR测定方法,省略了RNA提取步骤.
- 皮科基因PCR1100系统用于在约40分钟内快速检测FCoVRNA.
- 该方法的检测极限,灵敏度和特异性与使用FCoV培养和临床样本 (输出) 的传统RT-qPCR进行了比较.
主要成果:
- 直接RT-qPCR方法显示检测限值为150个副本/反应,与传统方法相比.
- 没有观察到与其他猫类病毒或SARS-CoV-2的交叉反应.
- 在临床样本中,直接RT-qPCR方法实现了FCoV检测95.5%的灵敏度和100%的特异性.
结论:
- 使用PCR1100系统的直接RT-qPCR方法是FCoV检测的敏感和特定工具.
- 这种快速,易于使用的测定方法适合在兽医机构的护理场所使用.
- 该方法有助于及时诊断FIP,可能改善患者的治疗结果.
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