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Abstracts of Presentations at the Association of Clinical Scientists 143 < sup > rd < /sup > Meeting Louisville, KY May 11-14,2022
Conclusion: These assays are suitable for routine diagnostic. The UltraFast NextGenPCR is the fastest with average time (30mins), followed by Agilent (2 hrs) and MassArray (6hrs). Upon completion of this activity, participants should be able to examine, measure and compare results from different assays for SARS detection, evaluate and diagnose accurately, as well as being able to plan, organize and recommend a diagnostic procedure for diagnostic laboratory. Key words: SARS-CoV-2, RNA extraction, RT-PCR, limit of detection, quantification cycle, COVID-19, in vitro diagnostic tests, Agilent, Massarray, Ultrafast. [20] From t...
Source: Annals of Clinical and Laboratory Science - July 1, 2022 Category: Laboratory Medicine Source Type: research

Antibacterial effect of mesenchymal stem cells against Escherichia coli is mediated by secretion of beta‐defensin‐2 via toll like receptor 4 signaling
This study was done to elucidate the mechanism underlying the antibacterial effects of MSCs. The growth of E. coli in vitro was significantly inhibited only by MSCs or their conditioned medium with bacterial preconditioning, but not by fibroblasts or their conditioned medium. Microarray analysis identified significant up‐regulation of toll like receptors (TLR)‐2 and TLR‐4, and β‐defensin 2 (BD2) in MSCs compared with fibroblasts after E. coli exposure. The increased BD2 level and the in vitro antibacterial effects of MSCs were abolished by specific antagonist or by siRNA‐mediated knockdown of TLR‐4, but not TL...
Source: Cellular Microbiology - September 1, 2015 Category: Microbiology Authors: Dong Kyung Sung, Yun Sil Chang, Se In Sung, Hye Soo Yoo, So Yoon Ahn, Won Soon Park Tags: Research article Source Type: research