: Here we compare the performance of the high-throughput BD COR System (COR) to the Viper LT System (Viper) using the BD Onclarity HPV assay.: Remnant clinical specimens, contrived specimens in SurePath (BD) and PreservCyt (Hologic) media, and prospective clinical specimens in BD Cervical Brush Diluent (CBD) were tested. Outcomes included intra-laboratory agreement of Onclarity results on COR and inter-system agreement between COR and Viper.: Onclarity reproducibility on COR resulted in standard deviation and correlation of variation of Ct values ranging from 0.14 to 1.98 and 0.49% to 2.15%, respectively, for contrived specimens, and 0.9-3.08 and 2.89-9.21%, respectively, for clinical specimens. In the COR and Viper clinical agreement study, OPA for Onclarity ranged from 97.1%-98.9%, depending on the collection media type. PPA values for pooled, HPV(+) specimens at low positive (C), and moderate positive (3XC) target concentrations were ≥95.0% and 100%, respectively; PPA values associated with HPV 16, 18, 31, 45, 33/58, 52, 35/39/68, 51, and 56/59/66, individually, ranged from 93.8%-100%.: Onclarity performance on COR is equivalent to Viper, and is accurate and reproducible for detection of all high-risk HPV genotypes, with a throughput of 330 results from a single 8-hour shift.
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http://dx.doi.org/10.1080/14737159.2021.1894132 | DOI Listing |
Microbiol Spectr
March 2024
Unit of Cancer Epidemiology, Belgian Cancer Centre, Sciensano, Brussels, Belgium.
Unlabelled: This study assessed the accuracy of high-risk human papillomavirus testing of BD Onclarity HPV (Onclarity) assay on vaginal self-collected FLOQSwab versus cervical samples to ensure similar accuracy to detect cervical intraepithelial neoplasia. Testing was performed on two automated platforms, BD Viper LT and BD COR, to evaluate the effect of machine and using two vaginal self-samples to analyze the influence of collection, transport, and freezing-unfreezing on the results. A cervical sample and two self-samples were collected from 300 women.
View Article and Find Full Text PDFExpert Rev Mol Diagn
March 2021
Becton, Dickinson and Company, BD Life Sciences-Integrated Diagnostic Solutions, Sparks, MD, USA.
: Here we compare the performance of the high-throughput BD COR System (COR) to the Viper LT System (Viper) using the BD Onclarity HPV assay.: Remnant clinical specimens, contrived specimens in SurePath (BD) and PreservCyt (Hologic) media, and prospective clinical specimens in BD Cervical Brush Diluent (CBD) were tested. Outcomes included intra-laboratory agreement of Onclarity results on COR and inter-system agreement between COR and Viper.
View Article and Find Full Text PDFThromb Res
April 2002
COR Therapeutics Inc., South San Francisco, CA, USA.
The activation of factor X (fX) to factor Xa (fXa) marks the penultimate step in the coagulation cascade and modulating fXa activity may be effective for antithrombotic therapy. Even though fXa inhibitors are screened using in vitro inhibition of human fXa (HfXa) while subsequent evaluation uses in vivo rabbit models, there is limited knowledge of species differences between the coagulation proteins. When comparing amino acid sequences for the human (HfX) and rabbit (RafX) protein, differences are found in the activation peptide and active site regions.
View Article and Find Full Text PDFJ Biol Chem
January 1993
COR Therapeutics, Inc., South San Francisco, California 94080.
A new series of homologous disintegrins was isolated from the venoms of new world pit viper genus Bothrops, Crotalus, and Lachesis. The relative activities of each disintegrin in blocking adhesive protein binding activities of GPIIb-IIIa, alpha v beta 3, and alpha 5 beta 1 were determined and correlated with their primary amino acid sequences. Four disintegrins contained the RGDW sequence and were found to be approximately twice as effective in blocking the binding of fibrinogen to GPIIb-IIIa than inhibiting the binding of vitronectin to alpha v beta 3 in solid-phase ligand binding assays (IC50 = 7.
View Article and Find Full Text PDFJ Biol Chem
May 1991
COR Therapeutics, Inc., South San Francisco, California 94080.
Sixty-two snake venoms were screened to identify those which specifically inhibit the adhesive protein binding function of the glycoprotein (GP) IIb-IIIa complex, the receptor-mediating platelet aggregation. Although 52 of these venoms inhibited GPIIb-IIIa, only one of these, from the southeastern pigmy rattlesnake, Sistrurus m. barbouri, was specific for GPIIb-IIIa versus other integrins.
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