Evaluation of a loop-mediated isothermal amplification assay for rapid diagnosis of soft-shelled turtle iridovirus. 2011

Zongxiao Liu, and Hong Liu, and Xiayang Xie, and Junqiang He, and Tingrong Luo, and Yong Teng
College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, China.

Softshelled turtle iridovirus (STIV) is the first Asian iridovirus isolated from reptiles, which infects soft-shelled turtles severely and leads to "Red neck disease" associated with high mortality. A set of four specific primers was designed by targeting the STIV Thymidine kinase (TK) gene and amplified STIV DNA specifically under optimized amplification conditions at 63°C for 60 min. The sensitivity of the loop-mediated isothermal amplification (LAMP) assay was found to be 20 copies/μl of STIV DNA. To evaluate the application of the LAMP assay for detection of STIV in clinical samples, 223 samples suspected of STIV infection from turtle tissues were tested by the LAMP assay and by cell-based virus isolation. A 78.5% concordance was observed between the results of the two methods. In this study, a robust and simple LAMP assay for rapid detection of STIV was developed and evaluated, which is the first suitable for potential diagnosis and helping to monitor STIV infections in the aquaculture industry.

UI MeSH Term Description Entries
D004279 DNA, Viral Deoxyribonucleic acid that makes up the genetic material of viruses. Viral DNA
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D013937 Thymidine Kinase An enzyme that catalyzes the conversion of ATP and thymidine to ADP and thymidine 5'-phosphate. Deoxyuridine can also act as an acceptor and dGTP as a donor. (From Enzyme Nomenclature, 1992) EC 2.7.1.21. Deoxythymidine Kinase,Deoxypyrimidine Kinase,Kinase, Deoxypyrimidine,Kinase, Deoxythymidine,Kinase, Thymidine
D014426 Turtles Any reptile including tortoises, fresh water, and marine species of the order Testudines with a body encased in a bony or cartilaginous shell consisting of a top (carapace) and a bottom (plastron) derived from the ribs. Sea Turtles,Terrapins,Tortoises,Sea Turtle,Terrapin,Tortoise,Turtle,Turtle, Sea,Turtles, Sea
D014773 Virology The study of the structure, growth, function, genetics, and reproduction of viruses, and VIRUS DISEASES.
D017931 DNA Primers Short sequences (generally about 10 base pairs) of DNA that are complementary to sequences of messenger RNA and allow reverse transcriptases to start copying the adjacent sequences of mRNA. Primers are used extensively in genetic and molecular biology techniques. DNA Primer,Oligodeoxyribonucleotide Primer,Oligodeoxyribonucleotide Primers,Oligonucleotide Primer,Oligonucleotide Primers,Primer, DNA,Primer, Oligodeoxyribonucleotide,Primer, Oligonucleotide,Primers, DNA,Primers, Oligodeoxyribonucleotide,Primers, Oligonucleotide
D017994 Iridovirus A genus of IRIDOVIRIDAE comprising small iridescent insect viruses. The infected larvae and purified virus pellets exhibit a blue to purple iridescence. Iridoviruses
D021141 Nucleic Acid Amplification Techniques Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template. DNA Amplification Technic,DNA Amplification Technique,DNA Amplification Techniques,Nucleic Acid Amplification Technic,Nucleic Acid Amplification Technique,RNA Amplification Technic,RNA Amplification Technique,RNA Amplification Techniques,Amplification Technics, Nucleic Acid,Amplification Techniques, Nucleic Acid,DNA Amplification Technics,Nucleic Acid Amplification Technics,Nucleic Acid Amplification Test,Nucleic Acid Amplification Tests,RNA Amplification Technics,Technics, Nucleic Acid Amplification,Techniques, Nucleic Acid Amplification,Amplification Technic, DNA,Amplification Technic, RNA,Amplification Technics, DNA,Amplification Technics, RNA,Amplification Technique, DNA,Amplification Technique, RNA,Amplification Techniques, DNA,Amplification Techniques, RNA,Technic, DNA Amplification,Technic, RNA Amplification,Technics, DNA Amplification,Technics, RNA Amplification,Technique, DNA Amplification,Technique, RNA Amplification,Techniques, DNA Amplification,Techniques, RNA Amplification

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