A method for enzyme immunoassay of thyroid-stimulating hormone (TSH) is described. TSH was conjugated with horseradish peroxidase according to periodate oxidation method. Separation of the bound and free was obtained by double-antibody solid-phase technique using Sepharose 4B-anti-rabbit immunoglobu
Microtitre plate enzyme amplified immunoassay for thyroid stimulating hormone
โ Scribed by Robert Wilson
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 485 KB
- Volume
- 269
- Category
- Article
- ISSN
- 0003-2670
No coin nor oath required. For personal study only.
โฆ Synopsis
Methods for removing contammatmg FAD and alkahne phosphatase from apo-ammoaad oxldase are described A method for phosphorylatmg flavm ademne dmucleotlde is also described Its hydrolysis to flavm ademne dmucleotlde catalysed by alkahne phosphatase IS demonstrated by hqmd chromatography Flavm ademne dmucleotlde can reactivate apo-ammoacld oxldase and result m the formatlon of hydrogen peroxlde The hydrogen peroxide can be detected colonmetrlcally These reactlons are used m an enzyme amplified immunoassay for thyroid stlmulatmg hormone m which alkaline phosphatase IS the enzyme label A hmlt of detection of 0 03 pIU ml-' for thyroid stimulating hormone makes the assay suitable for dlagnosmg hyperthyroldlsm Keywords Immunoassay, Enzyme amplified mununoassay, Flavm ademne dmucleotlde phosphate, Mlcrotltre plate, Nitroethane, Suicide substrate, Thyroid stimulatmg hormone
๐ SIMILAR VOLUMES
An immunometric assay is described which allows fast detection of attomole amounts of an antigen. The sensitivity is 100 to 1000 times better than that of classical sandwich immunometric assays. Our system allowed the measurement of human growth hormone in the range of 0.1 amol to 100 fmol in a 4-h
A sensitive sandwich enzyme immunoassay of human thyroid-stimulating hormone (hTSH) in dried blood on filter paper discs is described for mass-screening of hypothyroidism in the neonates. One 3 mm filter paper disc per assay, on which 2.7 PI of neonatal blood had been dried, was incubated in buffer
A noncompetitive enzyme immunoassay (hetero-two-site enzyme immunoassay) for p-melanocyte-stimulating hormone (@-MSH) was developed. p-MSH (1-12) was biotinylated, trapped onto an anti-e-MSH (1-12) IgG-coated polystyrene bead, eluted at pH 1 after washing to eliminate other biotinylated substances,
Despite the importance of Callitrichid primates in both biomedical and conservation research, practical and reliable immunoassays for the measurement of follicle-stimulating hormone (FSH) have not yet been described. A panel of monoclonal antibodies against specific peptide fragments within either t