Campylobacter jejuni (C. jejuni), a foodborne pathogen, is a major contributor to human bacterial gastroenteritis worldwide and detrimental to public health. It is crucial for initiating appropriate outbreak control strategies to rapidly detect C. jejuni. As a novel isothermal gene amplification technique, recombinase polymerase amplification (RPA) has been developed for the molecular detection of diverse pathogens. In this study, we developed a real-time RPA assay so as to achieve the rapid and efficient detection of C. jejuni by targeting the hipO gene. The specificity and senstivity of real-time RPA was validated and the practical applicability of the method for the detection of C. jejuni in artificially contaminated milk and chicken breast samples was proved by comparing their reaction time, sensitivity, and efficacy with those of real-time PCR and culture-based methods. Based on the real-time RPA assay, analysis time was reduced to approximately 13 mins from 60 mins and the results were as reliable as those of the real-time PCR assay. Taken together, in terms of the detection of C. jejuni, the real-time RPA method was simple, rapid, sensitive, and reliable.
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http://dx.doi.org/10.1016/j.mimet.2018.12.017 | DOI Listing |
Anal Chem
January 2025
State Key Laboratory for Manufacturing Systems Engineering, School of Instrument Science and Techonology, Xi'an Jiaotong University, Xi'an 710054, China.
Infectious diseases, especially respiratory infections, have been significant threats to human health. Therefore, it is essential to develop rapid, portable, and highly sensitive diagnostic methods for their control. Herein, a short-time preamplified, one-pot clustered regularly interspaced short palindromic repeats (CRISPR) nucleic acid detection method (SPOC) is developed by combining the rapid recombinase polymerase amplification (RPA) with CRISPR-Cas12a to reduce the mutual interference and achieve facile and rapid molecular diagnosis.
View Article and Find Full Text PDFFront Artif Intell
December 2024
Universidad Latinoamérica de Ciencia y Tecnología (ULACIT), San José, Costa Rica.
The COVID-19 pandemic marked a before and after in the business world, causing a growing demand for applications that streamline operations, reduce delivery times and costs, and improve the quality of products. In this context, artificial intelligence (AI) has taken a relevant role in improving these processes, since it incorporates mathematical models that allow analyzing the logical structure of the systems to detect and reduce errors or failures in real-time. This study aimed to determine the most relevant aspects to be considered for detecting software defects using AI.
View Article and Find Full Text PDFMethods Mol Biol
December 2024
Department of Biochemistry & Molecular Biophysics, Columbia University, New York, NY, USA.
Homologous recombination (HR) is the principal pathway undertaken by a cell for the error-free repair of DNA double-strand breaks that are frequently encountered by the cell. HR can be initiated at the sites of DNA double-strand breaks by generating long stretches of single-stranded 3' DNA overhang through a process called DNA end resection. In one DNA end resection pathway, this is achieved via the concerted effort of specialized machinery involving the RecQ family helicase BLM, the helicase/endonuclease DNA2, and a single-strand DNA binding protein complex RPA.
View Article and Find Full Text PDFVirol J
December 2024
Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.
Background: Duck circovirus (DuCV) infections commonly induce immunosuppression and secondary infections in ducks, resulting in significant economic losses in the duck breeding industry. Currently, effective vaccines and treatments for DuCV have been lacking. Therefore, rapid, specific, and sensitive detection methods are crucial for preventing and controlling DuCV.
View Article and Find Full Text PDFIEEE Open J Eng Med Biol
October 2024
MEMS, Microfluidics and Nanoelectronics (MMNE) LabBirla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus Hyderabad 500078 India.
This study introduced a proof-of-concept prototype for isothermal recombinase polymerase amplification (RPA) with miniaturized photometric detection, enabling rapid P. aeruginosa detection. The researchers conducted the amplification process within a microchamber with a diameter of 10 mm, utilizing a standalone Thermostat driven thermal management setup.
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