摘要:
The invention provides populations of isolated peptides useful for the detection of antibodies that bind to Anaplasma antigens. The peptide populations comprise peptides derived from immunogenic fragments of the Anaplasma Outer Membrane Protein proteins. The invention also provides devices, methods, and kits comprising the populations of isolated peptides useful for the detection of antibodies that bind to Anaplasma antigens and the diagnosis of anaplasmosis. Methods of identifying the particular Anaplasma species infecting a subject using the peptide populations of the invention are also disclosed.
摘要:
The invention provides compositions (e.g., peptide compositions) useful for the detection of antibodies that bind to Borrelia antigens. The peptide compositions comprise polypeptide sequences comprising variants in the IR6 domain of the Borrelia VlsE protein. The invention also provides devices, methods, and kits comprising such peptide compositions and useful for the detection of antibodies that bind to Borrelia antigens and the diagnosis of Lyme disease.
摘要:
The invention provides peptide compositions and mixtures useful for the detection of antibodies that bind to Ehrlichia antigens. The peptide compositions and mixtures comprise polypeptide sequences based on an immunogenic fragment of the Ehrlichia Outer Membrane Protein 1 (OMP-1) protein. The invention also provides devices, methods, and kits comprising such peptide compositions and mixtures useful for the detection of antibodies that bind to Ehrlichia antigens and the diagnosis of monocytic and/or granulocytic ehrlichiosis.
摘要:
The invention provides compositions (e.g., peptide compositions) useful for the detection of antibodies that bind to Ehrlichia antigens. The peptide compositions comprise polypeptide sequences based on an immunogenic fragment of the Ehrlichia Outer Membrane Protein 1 (OMP-1) protein. The invention also provides devices, methods, and kits comprising such peptide compositions and useful for the detection of antibodies that bind to Ehrlichia antigens and the diagnosis of monocytic ehrlichiosis.
摘要:
The invention provides compositions (e.g., peptide compositions) useful for the detection of antibodies that bind to Borrelia antigens. The peptide compositions comprise polypeptide sequences comprising variants in the IR6 domain of the Borrelia VlsE protein. The invention also provides devices, methods, and kits comprising such peptide compositions and useful for the detection of antibodies that bind to Borrelia antigens and the diagnosis of Lyme disease.
摘要:
The invention provides peptide compositions and mixtures useful for the detection of antibodies that bind to Ehrlichia antigens. The peptide compositions and mixtures comprise polypeptide sequences based on an immunogenic fragment of the Ehrlichia Outer Membrane Protein 1 (OMP-1) protein. The invention also provides devices, methods, and kits comprising such peptide compositions and mixtures useful for the detection of antibodies that bind to Ehrlichia antigens and the diagnosis of monocytic and/or granulocytic ehrlichiosis.
摘要:
Methods for determining the validity or accuracy of a clinical test result are provided. The methods entail obtaining patient analyte concentration data for two or more analytes with a concentration relationship; calculating a likelihood distribution for the concentration relationship between the two or more analytes; obtaining a clinical test result comprising measured concentration values for the two or more analytes; and determining the validity or accuracy of the clinical test result based on whether the clinical test result falls within the boundaries of the likelihood distribution. Analyte pairs that can be analyzed by the methods of the invention include albumin/calcium, sodium/chloride, BUN/creatinine, AST/ALT, total protein/albumin, potassium/total CO2, calcium/phosphorus, calcium/magnesium, potassium/creatinine, magnesium/potassium, Anion gap/potassium, sodium/potassium, chloride/potassium, magnesium/phosphate, ALT/GGT, ALT/ALP, CK/LDH and chloride/total CO2.
摘要:
The present invention provides various methods for detecting errors in a blood analysis system. The system includes a blood analyzer and a molded plastic rotor with a series of chambers and capillary channels through which blood is processed and distributed to cuvettes which contain lyophilized reagents. The rotor is placed in the analyzer which spins the rotor, and an optical system reads the cuvettes as light is flashed through the cuvettes. The invention provides checks for: confirming the presence of a reagent in the cuvettes before a sample is applied to the cuvettes; determining whether a fluid sample has been properly distributed to the cuvettes of the rotor; determining whether an adequate amount of fluid sample was applied to the analytical rotor; determining whether a fluid sample has been properly distributed to a cuvette of an analytical rotor; determining whether a reaction chemistry in a cuvette has reached an end point; checking the noise level and non-linearity of a reaction rate in a cuvette; determining whether an adequate amount of diluent was delivered to the cuvettes of an analytical rotor; determining dilution systematic failure when measuring different reaction chemistries in the cuvettes of the rotor; determining whether a blood sample in a cuvette is hemolyzed, lipemic, or icteric; determining the degradation of a reagent in a cuvette; determining proper light source and light detector operation; and determining proper motor function and cuvette mark detection.
摘要:
The present invention provides centrifugal rotors for delivering a liquid, typically a biological sample such as diluted plasma, to a plurality of cuvettes in the rotor. The cuvettes are positioned radially inward of an annulate manifold and are connected to the manifold through a plurality of inlet channels. The liquid is introduced in one end of the manifold and, as the rotor spins, the liquid fills the manifold from the radially outward edge inward. After, the manifold fills, the liquid flows radially inward through the inlet channels into the chambers. The design allows the simultaneous filling of the cuvettes. The inlet channels may also be sized such that as liquid enters the cuvettes, gas escapes through the inlet channel.
摘要:
The present invention discloses analyte detection devices for detecting one or more analytes present in test samples, especially biological samples. In particular, the devices of the invention are lateral flow assay devices comprising immobilized metal nanoparticle conjugates as the detection means. Methods of using the devices and kits comprising the devices are also described.