阈值循环数 Threshold cycle (Ct) 也写作Cq值，荧光信号大于荧光阈值时PCR循环数。仪器软件通常将第3-15个循环的荧光值设为基线（baseline），是由于测量 ...

Analyzing results from qPCR centers on an amplification plot, which charts the cycle number against the fluorescent signal. Initial qPCR cycles with minimal amplification and relatively low ...

The paper, by D.K. Harshman at the University of Arizona in Tuscon, AZ, and colleagues was titled, "Innovative qPCR using interfacial effects to enable low threshold cycle detection and inhibition ...

The paper, by D.K. Harshman at the University of Arizona in Tuscon, AZ, and colleagues was titled, "Innovative qPCR using interfacial effects to enable low threshold cycle detection and inhibition ...

A post on Instagram claims that the World Health Organisation (WHO) has pronounced PCR tests for Covid-19 as flawed, and all positive tests in the past 14 months ‘invalid’ if a cycle threshold of 35 ...

With these type of tests, it's critical to use an agreed-upon cycle threshold value such as 33 or 35 rather than setting it at a potentially misleading 40 or 45. Many of the current ...

RT-PCR: Cycle threshold value does not hold clinical relevance A survey of 700 labs in the U.S. found that the Ct values could vary by up to 12 cycles for the same target gene across labs ...

The UltraMarathonRT ® RT-qPCR Kit dramatically improves data reliability in quantitative PCR by maintaining consistent cycle threshold (Ct) values, regardless of RT primer type, RNA complexity or ...

The mean cycle threshold value for symptomatic patients was 19.9, whereas those who were asymptomatic had a mean value of 23.5 (95% CI, 2.6-4.6).

Any test with a cycle threshold above 35 is too sensitive, agreed Juliet Morrison, a virologist at the University of California, Riverside. “I’m shocked that people would think that 40 could ...