Multiplex Assay Kit for Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) 
FRP-4; FRPHE; Frizzled protein, human endometrium
(Note: Up to 8-plex in one testing reaction)
- UOM
- FOB US$ 437.00 US$ 454.00 US$ 479.00 US$ 512.00 US$ 546.00 US$ 596.00 US$ 672.00 US$ 840.00
- Quantity
Overview
Properties
- Product No.LMF878Hu
- Organism SpeciesHomo sapiens (Human) Same name, Different species.
- ApplicationsFLIA Kit for Antigen Detection.
Research use only - DownloadInstruction Manual
- CategorySignal transduction
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Packages (Simulation)
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Packages (Simulation)
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Results demonstration
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Typical Standard Curve
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ISO9001: 2008, ISO13485: 2003 Registered
Recovery
Matrices listed below were spiked with certain level of recombinant Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) and the recovery rates were calculated by comparing the measured value to the expected amount of Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) in samples.
| Matrix | Recovery range (%) | Average(%) |
| serum(n=5) | 78-93 | 89 |
| EDTA plasma(n=5) | 86-101 | 95 |
| heparin plasma(n=5) | 88-102 | 91 |
| sodium citrate plasma(n=5) | 83-103 | 93 |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) 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 Secreted Frizzled Related Protein 4 (SFRP4) ,etc. by FLIA (Flow Luminescence Immunoassay) 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) | 94-102% | 85-93% | 89-102% | 78-99% |
| EDTA plasma(n=5) | 80-95% | 78-96% | 78-98% | 97-105% |
| heparin plasma(n=5) | 87-94% | 99-105% | 83-103% | 80-104% |
| sodium citrate plasma(n=5) | 80-98% | 78-101% | 91-99% | 80-90% |
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#:SFRP4) | 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. Preparation of standards, reagents and samples before the experiment;
2. Add 100μL standard or sample to each well,
add 10μL magnetic beads, and incubate 90min at 37°C on shaker;
3. Remove liquid on magnetic frame, add 100μL prepared Detection Reagent A. Incubate 60min at 37°C on shaker;
4. Wash plate on magnetic frame for three times;
5. Add 100μL prepared Detection Reagent B, and incubate 30 min at 37°C on shaker;
6. Wash plate on magnetic frame for three times;
7. Add 100μL sheath solution, swirl for 2 minutes, read on the machine.
Test principle
Analyte-specific antibodies are pre-coated onto color-coded microparticles. Microparticles, standards, and samples are pipetted into wells and the immobilized antibodies bind the analytes of interest. After washing away any unbound substances, a biotinylated antibody cocktail specific to the analytes of interest is added to each well. Following a wash to remove any unbound biotinylated antibody, Streptavidin-Phycoerythrin conjugate (Streptavidin-PE), which binds to the biotinylated detection antibodies, is added to each well. A final wash removes unbound Streptavidin-PE and the microparticles are resuspended in buffer and read using the Luminex or Bio-Plex analyzer.The MFI developed is proportional to the concentration of analytes of interest in the sample.
Giveaways
Increment services
Citations
- Relationship between serum secreted frizzled-related protein 4 levels and the first-phase of glucose-stimulated insulin secretion in individuals with different glucose tolerancePubMed: 26041556
- Secreted Frizzled-Related Protein 4 (SFRP4) is Elevated in Patients with Diabetes MellitusPubmed:26882051
- Reduced expression of chemerin in visceral adipose tissue associates with hepatic steatosis in patients with obesitypubmed:27768254
- Longitudinal Increases in Adiposity Contribute to Worsening Adipokine Profile over Time in Mexican AmericansPubmed:29427376
- Novel marker for gestational diabetespatent:US20180059122A1
- A diet high in sugar-sweetened beverage and low in fruits and vegetables is associated with adiposity and a pro-inflammatory adipokine profilePubmed: 30375290
- SFRP4 is a prognostic marker and correlated with Treg cell infiltration in pancreatic ductal adenocarcinomaPubmed: 30906634
- Effects of long-term exercise on plasma adipokine levels and inflammation-related gene expression in subcutaneous adipose tissue in sedentary dysglycaemic …Pubmed: 31011777
- First trimester secreted Frizzled-Related Protein 4 and other adipokine serum concentrations in women developing gestational diabetes mellitusPubmed: 33206702
- SFRP4 drives invasion in gastric cancer and is an early predictor of recurrence33277667
- Early Pregnancy Serum Concentration of Secreted Frizzled-Related Protein 4, Secreted Frizzled-Related Protein 5, and Chemerin in Obese Women Who Develop …