Multiplex Assay Kit for Obestatin (OB) ,etc. by FLIA (Flow Luminescence Immunoassay)
(Note: Up to 8-plex in one testing reaction)
- UOM
- FOB US$ 415.00 US$ 431.00 US$ 455.00 US$ 487.00 US$ 519.00 US$ 567.00 US$ 638.00 US$ 798.00
- Quantity
Overview
Properties
- Product No.LMC039Hu
- Organism SpeciesHomo sapiens (Human) Same name, Different species.
- ApplicationsFLIA Kit for Antigen Detection.
Research use only - DownloadInstruction Manual
- CategoryMetabolic pathwayEndocrinologyHepatologyGastroenterologyNutrition metabolismHormone metabolism
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Recovery
Matrices listed below were spiked with certain level of recombinant Obestatin (OB) and the recovery rates were calculated by comparing the measured value to the expected amount of Obestatin (OB) in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 78-101 | 86 |
| EDTA plasma(n=5) | 78-96 | 87 |
| heparin plasma(n=5) | 95-102 | 99 |
| sodium citrate plasma(n=5) | 82-92 | 89 |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Obestatin (OB) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Obestatin (OB) were tested on 3 different plates, 8 replicates in each plate.
CV(%) = SD/meanX100
Intra-Assay: CV<10%
Inter-Assay: CV<12%
Linearity
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Obestatin (OB) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
| Sample | 1:2 | 1:4 | 1:8 | 1:16 |
| serum(n=5) | 81-101% | 80-92% | 95-105% | 98-105% |
| EDTA plasma(n=5) | 79-89% | 85-101% | 78-89% | 78-95% |
| heparin plasma(n=5) | 80-99% | 78-90% | 84-98% | 79-101% |
| sodium citrate plasma(n=5) | 80-90% | 91-98% | 88-102% | 89-96% |
Stability
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
Reagents and materials provided
| Reagents | Quantity | Reagents | Quantity |
| 96-well plate | 1 | Plate sealer for 96 wells | 4 |
| Pre-Mixed Standard | 2 | Standard Diluent | 1×20mL |
| Pre-Mixed Magnetic beads (22#:OB) | 1 | Analysis buffer | 1×20mL |
| Pre-Mixed Detection Reagent A | 1×120μL | Assay Diluent A | 1×12mL |
| Detection Reagent B (PE-SA) | 1×120μL | Assay Diluent B | 1×12mL |
| Sheath Fluid | 1×10mL | Wash Buffer (30 × concentrate) | 1×20mL |
| Instruction manual | 1 |
Assay procedure summary
1. Add 200μL analysis buffer solution to each well of the plate for pre-wetting;
2. Preparation of standards, reagents and samples before the experiment;
3. Add 50μL standard or sample to each well, add 50μL prepared Detection Reagent A, add 10μL magnetic beads, and incubate 90 minutes protect from light at 25°C on shaker;
4. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent B, and incubate 30 minutes protect from light at 25°C on shaker;
5. Wash plate once on magnetic frame;
6. Add 100μL sheath fluid, swirl for 10 minutes, read on the machine.
Test principle
Anti-Obestatin (OB) antibody was coated on the surface of magnetic beads. A competitive inhibition reaction is launched between biotin labeled Obestatin (OB) and unlabeled Obestatin (OB) (Standards or samples) with the pre-coated antibody specific to Obestatin (OB). PE-labeled avidin was added. The amount of bound PE conjugate is reverse proportional to the concentration of Obestatin (OB) in the sample, the intensity of MFI developed is reverse proportional to the concentration of Obestatin (OB) in the sample.
Giveaways
Increment services
Citations
- Evaluation of effects of diet on serum obestatin levels in over-weight patients with polycystic ovary syndromeOrg:Source
- Significance of appetite hormone ghrelin and obestatin levels in the assessment of the severity of acute pancreatitisPubmed:25141321
- Serum complement factor 5a levels are associated with nonalcoholic fatty liver disease in obese childrenDOI: 10.1111/apa.14106
- The role of the adipocytokines vaspin and visfatin in vascular endothelial function and insulin resistance in obese childrenPubmed: 31771561
