is a zoonotic nematode which is able to affect animals and humans. Diagnosis in the definitive host and environmental detection are key to prevent its dissemination and achieve control. Herein, a new coprological LAMP method for the detection of (Copro-LAMPAc) DNA was developed. DNA extraction was performed using a low-cost method and a fragment of the -1 gene was used for primer design. The analytical sensitivity, evaluated with serial dilutions of genomic DNA from adult worms, was 100 fg. A specificity of 100% was obtained using genomic DNA from the host and other pathogens. The Copro-LAMPAc was evaluated using environmental canine fecal samples. When compared with gold standard optical microscopy in epidemiological studies, it proved to be more sensitive. This new LAMP assay can provide an alternative protocol for screening and identification of for epidemiological studies in endemic areas.
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http://dx.doi.org/10.3389/fvets.2021.770508 | DOI Listing |
Mikrochim Acta
December 2024
School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 561113, China.
With the global prevalence of the hand-foot-and-mouth disease (HFMD) epidemic, the development of reliable point-of-care testing (POCT) is crucial for the timely identification and prevention of outbreaks. Isothermal nucleic acid amplification techniques (INAATs) have attracted much attention because of their high efficiency for rapid diagnosis. In this work, we systematically summarize the current status of INAATs for HFMD and discuss advantages and drawbacks of various INAATs for HFMD.
View Article and Find Full Text PDFMicrob Pathog
December 2024
School of Animal Science and Technology, Foshan University, Foshan, 528225, Guangdong Province, China; Department of Infectious Diseases, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun, 130122, Jilin Province, China; Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, 510260, Guangdong Province, China. Electronic address:
Beiji nairovirus (BJNV) is a recently discovered tick-borne RNA virus associated with human febrile illness. This study aimed to develop a loop-mediated isothermal amplification (LAMP) assay for the precise detection of BJNV, with a specific focus on assessing its effectiveness with clinical samples. The optimal molecular target was identified as the BJNV small (S) segment gene, and the ideal reaction conditions were established at 65 °C for 50 min.
View Article and Find Full Text PDFFront Microbiol
December 2024
Agro Climate Research Centre (ACRC), Tamil Nadu Agricultural University, Coimbatore, India.
Rice ( L.) is a vital crop feeding more than half of the world's population, with production occurring predominantly in Asian countries. However, rice cultivation faces challenges from various fronts, including biotic stresses intensified by climate change.
View Article and Find Full Text PDFBMC Bioinformatics
December 2024
Noblis, Inc., 2002 Edmund Halley Dr, Reston, VA, 20191, USA.
Background: The bacterium Vibrio cholerae causes diarrheal illness and can acquire genetic material leading to multiple drug resistance (MDR). Rapid detection of resistance-conferring mobile genetic elements helps avoid the prescription of ineffective antibiotics for specific strains. Colorimetric loop-mediated isothermal amplification (LAMP) assays provide a rapid and cost-effective means for detection at point-of-care since they do not require specialized equipment, require limited expertise to perform, and can take less than 30 min to perform in resource limited regions.
View Article and Find Full Text PDFFoods
November 2024
College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
The self-quenching fluorogenic probe facilitates precise identification of LAMP (loop-mediated isothermal amplification) amplicons, unaffected by non-specific products resulting from primer dimers. However, low quenching efficiency by surrounding nucleobases leads to high background signal, posing significant challenges for visual inspection with the naked eye. The present study aims to identify an oligonucleotide sequence that is complementary to the self-quenching fluorogenic probe, and to employ the fluorescence super-quenching mechanism of double-stranded DNA to establish a visualization system for the LAMP assay.
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