Code | CSB-E09423h |
Size | 96T,5×96T,10×96T |
Price | Request a Quote |
Trial Size |
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Intra-assay Precision (Precision within an assay): CV%<8% | ||||||
Three samples of known concentration were tested twenty times on one plate to assess. | ||||||
Inter-assay Precision (Precision between assays): CV%<10% | ||||||
Three samples of known concentration were tested in twenty assays to assess. | ||||||
To assess the linearity of the assay, samples were spiked with high concentrations of human RBP-4 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. | ||||||
Sample | Serum(n=4) | |||||
1:100 | Average % | 92 | ||||
Range % | 87-98 | |||||
1:200 | Average % | 98 | ||||
Range % | 93-104 | |||||
1:400 | Average % | 84 | ||||
Range % | 82-88 | |||||
1:800 | Average % | 90 | ||||
Range % | 85-97 |
The recovery of human RBP-4 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. | ||||||
Sample Type | Average % Recovery | Range | ||||
Serum (n=5) | 95 | 89-99 | ||||
EDTA plasma (n=4) | 96 | 90-102 | ||||
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Retinol binding protein 4 (RBP4) is a small plasma protein that serves as the primary carrier for retinol (vitamin A) in the bloodstream. This 21 kDa protein is synthesized primarily in the liver and forms a complex with transthyretin to transport retinol from hepatic stores to peripheral tissues. RBP4 has emerged as an important biomarker in metabolic research. Elevated levels have been linked with insulin resistance, type 2 diabetes, and cardiovascular disease, making it a valuable target for clinical and research studies.
The Human Retinol binding protein 4, RBP-4 ELISA Kit (CSB-E09423h) is designed for quantitative measurement of RBP4 in human samples. This sandwich ELISA works with serum, plasma, and tissue homogenates with a detection range of 15.6 ng/mL to 1000 ng/mL and sensitivity of 3.9 ng/mL. The assay requires 50-100 μL sample volume, operates with detection at 450 nm wavelength, and can be completed within 1-5 hours.
Application Examples
Note: The following application examples are drawn from a selection of publications citing this product. For additional applications, please refer to the full list of references in the "Citations" section.
This ELISA kit has been used in clinical research studies to quantify retinol binding protein 4 levels in human serum samples. The applications span cardiovascular disease research, metabolic studies, and proteomic validation experiments where RBP4 serves as a biomarker of interest.
• Cardiovascular research: Studies of RBP4 as a biomarker linking insulin resistance and coronary artery disease severity in patient populations
• Proteomic validation: Confirmation and quantification of candidate proteins identified through discovery-phase proteomic analyses in clinical samples
• Exercise intervention studies: Measurement of RBP4 levels alongside other metabolic and inflammatory markers in response to physical training protocols
• Biomarker profiling: Multi-analyte panels examining RBP4 in conjunction with adipokines, inflammatory cytokines, and acute-phase proteins in serum samples
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I am interested in 52 of ELISA Kit CSB-E09423h. However, I may not order since the kit has not been tested with Urine samples. Is it possible arrange to have this kit tested with urine?