摘要:
Methods and reagents are disclosed for conducting assays. Embodiments of the present methods and reagents are concerned with chemiluminescent reagents for determining the presence and/or amount of an analyte in a sample suspected of containing the analyte. The reagent is non-particulate and comprises a binding partner for the analyte and a chemiluminescent composition comprising an olefinic compound and a metal chelate. In embodiments of an assay, a combination is provided that comprises a sample suspected of containing the analyte, a chemiluminescent reagent as described above and a sensitizer reagent capable of generating singlet oxygen. The combination is subjected to conditions for binding of the analyte to the binding partner for the analyte. The sensitizer is activated and the amount of luminescence generated by the chemiluminescent composition is detected wherein the amount of luminescence is related to the amount of the analyte in the sample.
摘要:
Provided are methods for determining the amount of reverse T3 in a sample using mass spectrometry. The methods generally involve ionizing reverse T3 in a sample and detecting and quantifying the amount of the ion to determine the amount of reverse T3 in the sample.
摘要:
The present disclosure provides a compound having Formula I: or a pharmaceutically acceptable salt of hydrate thereof, wherein R1, A, m, and n are as described herein, for use in conducting immunodiagnostic assays for accurately measuring concentrations of circulating vitamin D, as well as for thyroxine and related analytes, estrogen and related analytes, and testosterone and related analytes.
摘要:
A composition for use as an assay reagent includes a paramagnetic solid support comprising a coating of a synthetic copolymer. The synthetic copolymer comprises two or three of a first copolymerized monomer, a second copolymerized monomer and a third copolymerized monomer and further comprises a polyethylenic backbone.
摘要:
A method and system of deriving a physiological homeostatic operating set point of an individual comprising the steps of: obtaining a dataset of predetermined number of homeostatic measurements of the individual; fitting the dataset of predetermined number of homeostatic measurements according to a negative exponential decay function; identifying and setting the physiological homeostatic operating set point unique to the individual as the point corresponding to the point of maximum curvature on the fitted negative exponential decay function is disclosed. The method is especially suited for determining the [FT4]-[TSH] set point, which is unique for each individual.
摘要:
Some embodiments provide a method for performing a free thyroxin assay. The method may include providing a flow cell that may include a plurality of sensors at least partially coated with a plurality of antibodies that bind to free thyroxin. The method may further provide introducing a sample into the flow cell so that the sample contacts the sensors, and incubating the sample therein for a time. As a result, at least a portion of any free thyroxin within the sample can bind at least some of the antibodies. In addition, the method may include introducing a wash agent into the flow cell to clear the flow cell of any substantial amount of the sample.