scholarly journals Rapid and Highly Sensitive Detection by a Real-time Polymerase Chain Reaction Using a Chip Coated with Its Reagents

2014 ◽  
Vol 30 (5) ◽  
pp. 569-574 ◽  
Author(s):  
Shunsuke FURUTANI ◽  
Nahoko NARUISHI ◽  
Masato SAITO ◽  
Eiichi TAMIYA ◽  
Yusuke FUCHIWAKI ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Real Time ◽  
Sensitive Detection ◽  
Chain Reaction ◽  
Highly Sensitive ◽  
Polymerase Chain ◽  
Highly Sensitive Detection

Highly sensitive detection of viral RNA genomes in blood specimens by an optimized reverse transcription-polymerase chain reaction

1994 ◽  
Vol 43 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Shigeki Murakami ◽  
Yoshiyuki Takahashi ◽  
Shigeru Yoshida ◽  
Isao Fuke ◽  
Kozo Ohmae ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Reverse Transcription ◽  
Viral Rna ◽  
Sensitive Detection ◽  
Chain Reaction ◽  
Highly Sensitive ◽  
Polymerase Chain ◽  
Blood Specimens ◽  
Highly Sensitive Detection

scholarly journals Analysis and validation of a highly sensitive one-step nested quantitative real-time polymerase chain reaction assay for specific detection of severe acute respiratory syndrome coronavirus 2

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Yang Zhang ◽  
Chunyang Dai ◽  
Huiyan Wang ◽  
Yong Gao ◽  
Tuantuan Li ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Real Time ◽  
Quantitative Polymerase Chain Reaction ◽  
Clinical Samples ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Qrt Pcr ◽  
Highly Sensitive ◽  
One Step ◽  
Polymerase Chain

Abstract Background Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, is posing a serious threat to global public health. Reverse transcriptase real-time quantitative polymerase chain reaction (qRT-PCR) is widely used as the gold standard for clinical detection of SARS-CoV-2. Due to technical limitations, the reported positive rates of qRT-PCR assay of throat swab samples vary from 30 to 60%. Therefore, the evaluation of alternative strategies to overcome the limitations of qRT-PCR is required. A previous study reported that one-step nested (OSN)-qRT-PCR revealed better suitability for detecting SARS-CoV-2. However, information on the analytical performance of OSN-qRT-PCR is insufficient. Method In this study, we aimed to analyze OSN-qRT-PCR by comparing it with droplet digital PCR (ddPCR) and qRT-PCR by using a dilution series of SARS-CoV-2 pseudoviral RNA and a quality assessment panel. The clinical performance of OSN-qRT-PCR was also validated and compared with ddPCR and qRT-PCR using specimens from COVID-19 patients. Result The limit of detection (copies/ml) of qRT-PCR, ddPCR, and OSN-qRT-PCR were 520.1 (95% CI: 363.23–1145.69) for ORF1ab and 528.1 (95% CI: 347.7–1248.7) for N, 401.8 (95% CI: 284.8–938.3) for ORF1ab and 336.8 (95% CI: 244.6–792.5) for N, and 194.74 (95% CI: 139.7–430.9) for ORF1ab and 189.1 (95% CI: 130.9–433.9) for N, respectively. Of the 34 clinical samples from COVID-19 patients, the positive rates of OSN-qRT-PCR, ddPCR, and qRT-PCR were 82.35% (28/34), 67.65% (23/34), and 58.82% (20/34), respectively. Conclusion In conclusion, the highly sensitive and specific OSN-qRT-PCR assay is superior to ddPCR and qRT-PCR assays, showing great potential as a technique for detection of SARS-CoV-2 in patients with low viral loads.

scholarly journals Noncompetitive Phage Anti-Immunocomplex Real-Time Polymerase Chain Reaction for Sensitive Detection of Small Molecules

2011 ◽  
Vol 83 (1) ◽  
pp. 246-253 ◽  
Author(s):  
Hee-Joo Kim ◽  
Mark McCoy ◽  
Shirley J. Gee ◽  
Gualberto G. González-Sapienza ◽  
Bruce D. Hammock
Keyword(s):  
Polymerase Chain Reaction ◽  
Small Molecules ◽  
Real Time ◽  
Sensitive Detection ◽  
Chain Reaction ◽  
Polymerase Chain
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