2026-04-23T16:34:24Z https://www.peertechzpublications.org/oai-pmh

oai:www.peertechzpublications.org:10.17352/2455-5363.000007 2015-11-20 PTZ.GJIDCR:VOL1

PCR-Based Method for Rapid and Minimized Electrochemical Detection of mecA Gene of Methicillin-Resistant Staphylococcus aureus and Methicillin-Resistant Staphylococcus epidermis Tomohiko Ikeuchi Masafumi Seki Yukihiro Akeda Norihisa Yamamoto Shigeto Hamaguchi Tomoya Hirose Keiichiro Yamanaka Masato Saito Kazunori TomonoEiichi Tamiya<p>Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most important pathogens that cause nosocomial infections. However, microbiological culture techniques take a few days to yield results; therefore, a simple, cost-effective, and rapid detection system is required for screening for MRSA and related bacteria: Methicillin-resistant Staphylococcus epidermidis (MRSE) carriers during the hospital admissions process. In this study, we described the simplified method using by one-time use and screen-printed carbon electrodes, relied upon current quantification of Hoechst dyes which bound with DNA amplified via polymerase chain reaction (PCR) targeted for MRSA mecA gene. Amount of DNA-bound Hoechst molecules were measured by the hand-held potentiostat within two minutes. We found that the peak of a Hoechst-mediated current depended upon the number of MRSA isolates, and successfully distinguished between carriers and a non-carrier based on nasal swabs from the patients. This method required only 10 μL for application, and the results could be obtained within total 60 min from sample collection when a minimum of 1×103 MRSA isolates was present. These results suggested that this minimized technique has the potential to become a useful system of active surveillance for MRSA/MRSE carriers.</p> Global Journal of Infectious Diseases and Clinical Research - Peertechz Publications 2015-11-20 Research Article https://doi.org/10.17352/2455-5363.000007 en Copyright © Tomohiko Ikeuchi et al.