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Shelf Life: 12 months
Background: Vaspin, designated as visceral adipose tissue-derived serpin, is a serpin whose expression is restricted to visceral adipose tissue. Vaspin seems to retain the serpin signature conformation fold consisting of three beta-sheets and nine alpha-helices as well as a reactive loop site that interacts with its cognate serine protease unidentified hitherto. Vaspin is remarkably upregulated at high-fat high-sucrose (HFHS) diet and at multiple metabolic dysfunctions like obesity or insulin resistance. Administration of thiazolidinedione (TZD) caused a significant induction of serum vaspin in mice. These facts imply that upregulation of vaspin may be a compensatory response to antagonize the action of other unknown proteases upregulated in obesity or insulin resistance. Indeed, administration of recombinant vaspin to obese mice fed with HFHS chow improved glucose tolerance and insulin sensitivity. Vaspin seems to directly act on white adipose tissue. This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of human vaspin in biological fluids. A monoclonal antibody specific for vaspin has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, vaspin is recognized by the addition of a purified polyclonal antibody specific for vaspin (Detection Antibody). After removal of excess polyclonal antibody, HRP conjugated anti-rabbit IgG (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3',5,5'-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of vaspin in the samples. The assay range is 0.016 - 1 ng/ml Vaspin/ml. The lowest level of vaspin that can be detected by this assay is 12 pg/ml.
Summary: Detection method- Absorbance (450 nm)
Species reactivity- Mammalian
Applications- This assay detects human Vaspin in the range of 0.016 - 1 ng/ml Vaspin/ml. The lowest level of vaspin that can be detected by this assay is 12 pg/ml.
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Product Notes
The Vaspin (Catalog #AAA843465) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "Vaspin, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
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