The reverse transcription polymerase chain reaction (RT-PCR) is the most sensitive method for the detection of low-abundance mRNA, often obtained from limited tissue samples. However, it is a complex technique, there are substantial problems associated with its true sensitivity, reproducibility and specificity and, as a quantitative method, it suffers from the problems inherent in PCR. The rece...

Genomic fragments of the HN and L genes from Brazilian bovine parainfluenza 3 virus (bPIV-3) isolated as contaminants from cell cultures and clinical specimens were amplified by reverse transcription-polymerase chain reaction (RT-PCR), sequenced using specific degenerate primers and analyzed by phylogenetic comparison with reference strains of bPI3V. The Brazilian isolates revealed a high degre...

The study was aimed at determining the prevalence of pandemic influenza (H1N1) 2009 among patients with respiratory tract diseases during July-December 2009 using real-time reverse transcription polymerase chain reaction. Haemagglutination inhibition (HI) assay was performed to detect antibody titres against pandemic influenza in 255 medical personnel, 307 members of the general population duri...

Quantitative real-time reverse transcription polymerase chain reaction (RT-qPCR) is the most commonly-used technique to identify gene expression profiles. The selection of stably expressed reference genes is a prerequisite to properly evaluating gene expression. Here, the suitability of commonly-used reference genes in normalizing RT-qPCR assays of mRNA expression in cultured rat cortical neuro...

turnip mosaic virus (tumv) is amember of the potyvirus genus within the potyviridae family and is one the most important viruses infecting brassicaceae plants. in april 2012, suspicious symptoms of a viral disease such as mosaic, stunting and malformation were observed on herschfeldia incana. the collected samples were tested using reverse transcription-polymerase chain reaction (rt-pcr) with s...

embryonic stem cells (escs) are pluripotent, self-renewing cells. these cells can be used in applications such as cell therapy, drug discovery, disease modelling, and the study of cellular differentiation. in this experimental study embryonic stem cells cultured in the laboratory and were amplified. total rna was extracted from cells and converted to cdna by reverse transcription-polymerase cha...