Abstract:
The invention provides among other things methods and kits based on assaying for cardiac troponin autoantibodies, either in conjunction with an assay for cardiac troponin and/or as an independent indicator of cardiac pathology, such as myocarditis, cardiomyopathy, and/or ischemic heart disease. Assay methods of the invention can be employed among other things to identify cardiac pathology, or risk thereof, in subjects who have an autoimmune disease or who are related to an individual with an autoimmune disease. In particular embodiments, the invention also provides a method of determining whether a subject having, or at risk for, a cardiac pathology is a candidate for immunosuppressive therapy or immunoabsorption therapy. The invention also provides kits and kit components that are useful for performing the methods of the invention.
Abstract:
Immunoassay methods and reagents for measuring the levels of lead in a test sample via the quantification of porphobilinogen use antibodies prepared with compounds of Formulas (II) and (III), wherein X and Y are linking groups consisting of 0 to 2 heteroatoms and 0 to 8 carbon atoms linked to an immunogenic carrier material P wherein P is preferably bovine serum albumin. Also described are the synthesis of fluorescein tracers of the structure of Formulas (V) and (VII), wherein A and C are linking groups consisting of 0 to 2 heteroatoms and 0 to 8 carbon atoms linked to a detectable moiety Q, and wherein Q is a detectable moiety, preferably fluorescein or a fluorescein derivative.
Abstract:
A method for synthesizing novel N-protected aminoalkylaldehydes having aldehyde and amino termini and which are useful as crosslinking reagents for preparing conjugates with biologically active compounds is described. N-benzyloxy-carbonylaminoalkylalcohols and N-butyloxy-carbonylaminoalkylalcohols are oxidized with a Dess-Martin periodinane reagent to provide N-protected aminoaldehydes for use as heterobifunctional crosslinking reagents.
Abstract:
The present disclosure relates to assays and kits for detecting and quantifying damage caused by a parasite in a subject and monitoring the progression of parasitic disease in a subject.
Abstract:
The present invention relates to assays and kits for detecting haloperoxidase activity in test samples, involving acridinium-9-carboxamide. In the presence of a source of hydrogen peroxide and a basic solution chemi luminescence is generated.
Abstract:
Immunoassay methods and reagents for the specific quantification of thyroxine in a test sample are disclosed employing antibodies prepared with thyroxine derivatives of formula (2) wherein P is an immunogenic carrier material and X is a linking moiety. The present invention also describes the synthesis of unique labelled reagent of formula (4) wherein Q is a detectable moiety and W is a linking moiety, preferably fluorescein or a fluorescein derivative.
Abstract:
Method and reagents for determining a compound of interest present in a test sample also containing one or more interfering compounds having substantially similar chemical structures, and otherwise analytically indistinguishable from each other, employing a pretreatment reagent capable of selectively modifying the chemical structure of one of the compounds without significantly modifying or altering the chemical structure of the other one of the compounds. The selective modification results in the modified compound having a chemical structure which is substantially dissimilar to the chemical structure of the other one of said compounds wherein the compounds are substantially distinguishable from each other to permit the analytical determination of one or the other of such compounds by immunoassay, high pressure liquid chromatography, and thin layer chromatography techniques, especially for the fluorescent polarization immunoassay determination of tricyclic antidepressant drugs in the presence of phenothiazines.
Abstract:
Immunoassay methods and reagents for the quantification of total doxepins (i.e., E-doxepin, Z-doxepin, E-desmethyldoxepin, and Z-desmethyldoxepin) in a test sample are disclosed. The quantification of total doxepins is accomplished in an immunoassay employing antibodies and labeled reagents prepared with doxepin derivatives of formula (II), wherein Y-Z can be C=CH or N-CH2, R1 is a linking group, R2 can be H or CH3 and Q can be a detectable moiety or an immunogenic carrier material. The antibody reagent comprises antibodies which are capable of binding to total doxepins and which are produced with one or more immunogens prepared from the doxepin derivative of formula (II), and the labeled reagent is also prepared from the doxepin derivative of formula (II).