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视黄醇结合蛋白多格式ELISA试剂盒 Multi-Format Retinol Binding Protein, RBP ELISA Kit
K062-H5 Arbor Assays
16511.30 / 5x96 well
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产品说明 / Product Overview:

DetectX® Retinol Binding Protein (RBP) Multi-Format Enzyme Immunoassay Kit
DetectX® 多格式视黄醇结合蛋白(RBP)酶免疫测定试剂盒用于定量测量血清、血浆、干血斑(DBS)和尿液样本中的RBP。
该试剂盒提供两个标准曲线范围:对于血清和血浆样品,我们建议使用10 µL的标准品和测定范围为1,000 - 7.813 ng / mL的样品。对于尿液和干血斑样品,我们建议使用100 µL标准液和200 - 1.563 ng / mL的测定范围的样品。
检测快速 --- 90分钟内即可获得结果;
适用于多种样品类型,已验证的样本类型:血清,EDTA和肝素血浆,干血斑和尿液。



• Quick - Results in 90 Minutes
• Convenient - One kit for the measurement of a broad range of RBP concentrations
• Sample - Serum, Plasma, Urine, Dried Blood Spots
• Samples/Kit - 38 or 230 in Duplicate
• Stable - 4˚C Liquid Reagents
       

The DetectX® Retinol Binding Protein (RBP) Multi-Format ELISA Kit is designed to allow for the measurement of both high and low RBP levels in a variety of samples including dried blood spots, serum, EDTA and heparin plasma and urine with the same kit. The kit uses native human RBP as a standard. Standards or diluted samples are added to a coated microtiter plate along with a RBP-peroxidase conjugate and the binding reaction initiated by addition of a RBP-specific sheep antibody. After a 60-minute incubation, the plate is washed and TMB substrate solution added. After 30 minutes, the color development is stopped and the intensity of the generated signal is read at 450nm.

Retinol binding protein (RBP) is from a family of structurally related proteins that bind small hydrophobic molecules such as bile pigments, steroids, odorants, etc. RBP is a 21 kDa highly conserved, single-chain glycoprotein, consisting of 182 amino acids with 3 disulfide bonds, that has a hydrophobic pocket which binds retinol. In urine RBP has been shown to be a useful marker for renal function as it is totally filtered by the glomeruli and reabsorbed by proximal tubules. This has made RBP a tool to study renal function in heart or kidney transplant recipients, type 1 and 2 diabetics, and in people exposed to uranium from mining operations.  Modulating RBP4 levels may lead to new strategies in treating type 2 diabetes

When in serum, the majority of RBP bound with retinol is reversibly complexed with transthyretin. This complex transports retinol to specific receptors of various tissues in the body.  Vitamin A status is reflected by serum concentration as it is homeostatically controlled and does not fall until stores are drastically reduced.  RBP has been shown to be a useful surrogate marker for retinol because of the correlation between retinol and RBP in serum, which implies that RBP may be used to monitor vitamin A deficiency (VAD). The WHO has estimated that 250 million children have moderate to severe VAD due to lack of adequate nutrition, and the rising cost of food staples around the world further exacerbates this problem.  In addition to nutritional deficiencies, infectious stresses have been shown to depress retinol concentrations and individuals with diseases such as cystic fibrosis and HIV-1 also run the risk of VAD due to the infectious stresses that contribute to the disease.  Measurement of RBP levels has also been useful in detection and characterization of diseases including hypertension and certain cancers, among other conditions.

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