BACKGROUND Early and rapid detection of dengue virus (DENV) infection during the febrile period is crucial for proper patient management and prevention of disease spread. An easy to perform and highly sensitive method is needed for routine implementation especially in the resource-limited rural healthcare settings where dengue is endemic. METHODS A single-tube reverse transcription-loop-media...

Loop-mediated isothermal amplification (LAMP) combined with enzyme-linked immunosorbent assay (LAMP-ELISA) and with lateral flow dipstick (LAMP-LFD) are rapid, sensitive and specific methods for the visual detection of clinical pathogens. In this study, LAMP-ELISA and LAMP-LFD were developed for the visual detection of canine parvovirus (CPV). For LAMP, a set of four primers (biotin-labeled for...

bovine leukemia virus (blv) is a retrovirus causing a chronic leukemia/lymphoma in cattle in many countries around the world. screening for antibodies by elisa has been the primary means of detecting the presence of this virus. it is not yet known if this assay will detect antibodies in all cattle during a concomitant bovine leukemia virus infection. the polymerase chain reaction (pcr) of the t...

Bovine leukaemia virus (BLV) is a retrovirus that induces a chronic infection in cattle. Once infected, cattle remain virus carriers for life and start to show an antibody response within a few weeks after infection. Eradication and control of the disease are based on early diagnostics and segregation of the carriers. The choice of a diagnostic method depends on the eradication programme, money...

This study aimed to optimize the applicability of an immunoliposome-based immunomagnetic concentration and separation assay to facilitate rapid detection of Cronobacter sakazakii in powdered infant formula (PIF). To determine the detection limit, specificity, and pre-enrichment incubation time (0, 4, 6, and 8 h), assay tests were performed with different cell numbers of C. sakazakii (2 × 100 an...

small standard deviations of 0.11 and 0.39 pg/ml, respectively. Additional studies demonstrated that the recovery of 0.13, 0.35, 0.62, 2.7, 24, and 260 pg/ml VEGF in 10% pooled mouse EDTA plasma was 100– 120%; the average recoveries of 2, 5, and 20 pg/ml VEGF in 10% individual human serum (n 5 4, with 98–130 pg/ml endogenous VEGF) were 83, 94, and 96%, respectively. This immuno-PCR therefore ca...

Purpose: To investigate the effect of miR-493-5p in lipopolysaccharide (LPS) -induced ATDC5 chondrogenic cells.
 Methods: The MTT assay was used to determine viability LPS-induced cells. ENCORI (starbase.sysu.edu.cn/) predict target miR-493-5p. Quantitative reverse-transcription-polymerase chain reaction (qRT-PCR) expression controlled cells and treated with various combinations LPS, negat...

The diagnostic value of a PCR assay that amplifies a 501-bp fragment of the Yersinia pestis caf1 gene has been determined in a reference laboratory with 218 bubo aspirates collected from patients with clinically suspected plague managed in a regional hospital in Madagascar. The culture of Y. pestis and the detection of the F1 antigen (Ag) by enzyme-linked immunosorbent assay (ELISA) were used a...

Development of control measures for the gammaherpesviral disease of cattle known as sheep-associated malignant catarrhal fever (SA-MCF) has been hampered by a lack of accurate diagnostic tests either for the causative virus or for antibody against that virus. A recently developed competitive-inhibition enzyme-linked immunosorbent assay (CI-ELISA) for the detection of antibody to malignant catar...