The validation of a commercial enzyme-linked immunosorbent assay and the effect of freeze-thaw cycles of serum on the stability of cortisol and testosterone concentrations in Aceh cattle.
Background: To get an accurate measurement of cortisol (C) and testosterone (T) in cattle Aceh, enzyme-linked immunosorbent assay (ELISA) commercial kits need to be carefully validated. Moreover, repeated freeze-thaw cycles during sample storage may affect the stability of hormones in serum. Here, we test the reliability of the measurement of the concentration of C and T in serum of cattle Aceh, were obtained using a commercial ELISA kit C and T C is designed to measure the concentration of human and T. Furthermore, we evaluated the effect of repeated freeze-thaw cycles on the stability of C and T concentrations in serum. Method: (. Cat no EIA-1887.) Commercial C and T (Cat no EIA-1559 ..) ELISA kit from DRG Instruments GmbH validated through the analysis of the validation test (ie, parallelism, accuracy, and precision) and the biology test validation (for C: effects of transport on the excretion of C, because T: T concentrations between bulls and cows).
To test the effect of freeze-thaw cycles, bovine serum was subjected to the following treatments: (i) remains frozen at -20 OC (control group); (Ii) is exposed to freeze-thaw cycles for two, four, six, and eight times (test group). Results: Parallelism, accuracy, and precision tests showed that both C and T ELISA kit adequately measured C and T in Aceh bovine serum. Post-transport C concentration was significantly higher than the pre-transport (p <0.05). The concentration of T in bulls was significantly higher than in cows (p <0.05). After four to eight cycles of freeze-thaw, their concentrations were significantly lower compared with the control group (all p <0.05).
In contrast, the concentration of T remains stable (all p> 0.05). Conclusion: Commercial C (EIA-1887) and T (EIA-1559) reliable ELISA test kit for measuring serum C and T, respectively, in cattle Aceh. Repeated freeze-thaw cycles significantly affect the stability of serum C, but not for T.
The validation of a commercial enzyme-linked immunosorbent assay and the effect of freeze-thaw cycles of serum on the stability of cortisol and testosterone concentrations in Aceh cattle.
comparative assessment of commercial enzyme-linked immunosorbent assay and rapid diagnostic tests are used for diagnosis of dengue fever in India.
dengue fever diagnosis is routinely done by the detection of dengue virus (DENV) NS1 antigen and / or anti-DENV IgM antibody test using enzyme-linked immunosorbent assay (ELISA) and rapid diagnostic test (RDT). This study aimed to evaluate the quality of diagnostic tests being used in India for the identification of dengue DENV infection.During 2016 season (July to November) in Pune, India, comparative assessment of multiple immunoassay was performed using (i) WHO approved Panbio-Dengue-early – (NS1) -ELISA and Panbio-Dengue-IgM-capture-ELISA as a reference test, and (ii) Bayesian latent class analysis (BLCA) which assumes that no test is perfect.
Assays including J.Mitra-Dengue-NS1-Ag-MICROLISA (JME-NS1), J.Mitra-Dengue-IgM-MICROLISA (JME-IgM), and the two RDTs, ie, J.Mitra-Dengue-Day-1 -test (JM-RDT) and SD BIOLINE-Dengue-Duo (SDB-RDT). serum samples from patients with dengue diagnosis (n = 809) were tested using a diagnostic kit. The presence of NS1 and / or IgM taken as proof positive dengue diagnosis.Panbio-NS1 / IgM-ELISA identified 38.6 per patient per cent positive dengue fever.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: Enzyme-linked immunosorbent assay kit for quantification of Rat Cystatin-C in samples from serum, plasma, tissue homogenates and other biological fluids.
Description: Description of target: As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity. Known to inhibit cathepsin B, H, and L. ;Species reactivity: ;Application: ELISA;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 0.206 ng/ml
Description: Quantitativesandwich ELISA kit for measuring Rat Cystatin C, Cys-C in samples from serum, plasma, cell culture supernates, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativesandwich ELISA kit for measuring Rat Cystatin C, Cys-C in samples from serum, plasma, cell culture supernates, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: For the quantitative determination of human Cystatin C concentrations in cell culture supernates, serum, plasma, saliva, urine, and human milk.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin A in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin A in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rat Cystatin A in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Human Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: Quantitative sandwich ELISA kit for measuring Human Cystatin C, Cys-C in samples from serum, plasma, urine, saliva, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitative sandwich ELISA kit for measuring Human Cystatin C, Cys-C in samples from serum, plasma, urine, saliva, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: Quantitative sandwich ELISA kit for measuring Mouse Cystatin C, Cys-C in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitative sandwich ELISA kit for measuring Mouse Cystatin C, Cys-C in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: Quantitativecompetitive ELISA kit for measuring Pig Cystatin C, Cys-C in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativecompetitive ELISA kit for measuring Pig Cystatin C, Cys-C in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Goat Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Canine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Monkey Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Rabbit Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Porcine Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Mouse Cystatin C,Cys-C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Guinea pig Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Guinea pig Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: A competitive ELISA for quantitative measurement of Guinea pig Cystatin C in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.
Description: Enzyme-linked immunosorbent assay kit for quantification of Human Cystatin-C in samples from serum, plasma, tissue homogenates and other biological fluids.
Description: Enzyme-linked immunosorbent assay kit for quantification of Mouse Cystatin-C in samples from serum, plasma, tissue homogenates and other biological fluids.
Description: Description of target: Cystatin C or cystatin 3 (formerly gamma trace, post-gamma-globulin or neuroendocrine basic polypeptide), a protein encoded by the CST3 gene, was originally described as a constituent of normal cerebrospinal fluid (CSF) and of urine from patients with renal failure. Cystatin 3 has a low molecular weight (approximately 13.3 kilodaltons), and it is removed from the bloodstream by glomerular filtration in the kidneys. In mouses, all cells with a nucleus (cell core containing the DNA) produce cystatin C as a chain of 120 amino acids. It is found in virtually all tissues and bodily fluids. Cystatin C, which belongs to the type II cystatin gene family, is a potent inhibitor of lysosomal proteinases (enzymes from a special subunit of the cell that break down proteins) and probably one of the most important extracellular inhibitors of cysteine proteases (it prevents the breakdown of proteins outside the cell by a specific type of protein degrading enzymes). Moreover, cystatin C is involved in network reorganization in the epileptic dentate gyrus.;Species reactivity: Mouse;Application: ELISA;Assay info: ;Sensitivity: < 10 pg/ml
Description: Description of target: As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity. ;Species reactivity: Mouse;Application: ELISA;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 0.146 ng/ml
Description: Description of target: As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity. ;Species reactivity: Monkey;Application: ELISA;Assay info: Assay Methodology: Quantitative Sandwich ELISA;Sensitivity: 0.330 ng/ml
With Panbio-ELISA as a reference, all the less sensitive tests for the detection of IgM, whereas for NS1, JM-RDT less sensitive. For the combined diagnosis (second marker), all tests have low sensitivity (55.7 to 76.6%). According BLCA, Panbio-ELISA was 84 percent sensitive for NS1, 86 percent for IgM and 87 percent for the combined diagnosis. Thus, another test performance is substantially improved by BLCA; However, the sensitivity of both RDTs for detection of IgM remains unacceptable
