https://scholars.lib.ntu.edu.tw/handle/123456789/515615
標題: | Rapid antibiotic susceptibility testing of bacteria from patients’ blood via assaying bacterial metabolic response with surface-enhanced Raman spectroscopy | 作者: | YIN-YI HAN Lin, Yi-Chun Cheng, Wei-Chih Lin, Yu-Tzu LEE-JENE TENG Wang, Juen-Kai JUEN-KAI WANG |
公開日期: | 2020 | 卷: | 10 | 期: | 1 | 來源出版物: | Scientific Reports | 摘要: | Blood stream infection is one of the major public health issues characterized with high cost and high mortality. Timely effective antibiotics usage to control infection is crucial for patients’ survival. The standard microbiological diagnosis of infection however can last days. The delay in accurate antibiotic therapy would lead to not only poor clinical outcomes, but also to a rise in antibiotic resistance due to widespread use of empirical broad-spectrum antibiotics. An important measure to tackle this problem is fast determination of bacterial antibiotic susceptibility to optimize antibiotic treatment. We show that a protocol based on surface-enhanced Raman spectroscopy can obtain consistent antibiotic susceptibility test results from clinical blood-culture samples within four hours. The characteristic spectral signatures of the obtained spectra of Staphylococcus aureus and Escherichia coli—prototypic Gram-positive and Gram-negative bacteria—became prominent after an effective pretreatment procedure removed strong interferences from blood constituents. Using them as the biomarkers of bacterial metabolic responses to antibiotics, the protocol reported the susceptibility profiles of tested drugs against these two bacteria acquired from patients’ blood with high specificity, sensitivity and speed. ? 2020, The Author(s). |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/515615 | ISSN: | 2045-2322 | DOI: | 10.1038/s41598-020-68855-w | SDG/關鍵字: | antiinfective agent; biological marker; animal; bacterium; drug effect; Escherichia coli; goat; human; metabolism; microbial sensitivity test; Raman spectrometry; receiver operating characteristic; signal processing; Staphylococcus aureus; Animals; Anti-Bacterial Agents; Bacteria; Biomarkers; Escherichia coli; Goats; Humans; Microbial Sensitivity Tests; ROC Curve; Signal Processing, Computer-Assisted; Spectrum Analysis, Raman; Staphylococcus aureus |
顯示於: | 醫學院附設醫院 (臺大醫院) |
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