Abstract: We used hierarchical clustering to examine gene expression profiles generated by serial analysis of gene expression (SAGE) in a total of nine normal lung epithelial cells and non-small cell lung cancers (NSCLC). Separation of normal and tumor samples, as well as histopathological subtypes, was evident using the 3,921 most abundant transcript tags. This distinction remained when just 115 highly differentially expressed transcript tags were used. Furthermore, these 115 transcript tags clustered into groups that were suggestive of the unique biological and pathological features of the different tissues examined. Adenocarcinomas were characterized by high-level expression of small airway-associated or immunologically related proteins, while squamous cell carcinomas overexpressed genes involved in cellular detoxification or antioxidation.

Abstract: A method for identifying inhibitors of a lipoxygenase enzyme, the assay comprising: contacting a lipoxygenase enzyme with a test Compound, a lipoxygenase enzyme Substrate and oxygen; adding a fluorometric reagent and a peroxidase; measuring the fluorescent signal; determining the amount of enzyme inhibition by the test Compound.

Abstract: The present invention relates to a method for determining the risk whether an individual showing at least one symptom of an evolving acute coronary syndrome (ACS) is suffering from an acute coronary syndrome comprising the steps of (a) measuring, preferably in vitro, the level of MRP 8/14, wherein (b) if the level of MRP 8/14 is at least increased, then the individual is at risk of suffering from an acute coronary syndrome. The invention further relates to methods for ruling out whether an individual showing at least one symptom of an evolving ACS is suffering from an ACS, for assessing whether an individual showing at least one symptom of an evolving ACS is not at risk of suffering from an ACS and to discriminate if an individual showing at least one symptom of an evolving ACS is at risk to suffer from an ACS and or has no ACS.

Abstract: Methods for generating chemiluminescence rapidly by reaction of at least one compound comprising a C—C double bond substituted at one carbon with two sulfur atom-containing groups with a peroxidase enzyme and a peroxide are disclosed. The chemiluminescence thus produced can be used as a detectable signal in assays for peroxidase enzymes or peroxide-producing enzymes and in assays employing enzyme-labeled specific binding pairs. Use of the methods provides rapid signal generation, achieving a plateau intensity in under one minute. The substrate can be provided in a composition which demonstrates unexpectedly long storage stability.

Abstract: The present invention discloses methods for the detection and monitoring of a condition in a subject using highly sensitive detection of molecules. The invention provides a method for detecting or monitoring a condition in a subject, comprising detecting a first marker in a first sample from the subject and detecting a second marker, wherein the first marker comprises a biomarker, e.g., Cardiac Troponin-I (cTnI) or Vascular Endothelial Growth Factor (VEGF), and wherein the limit of detection of the first marker is less than about 10 pg/ml. The second marker can be a biomarker, physiological marker, a molecular marker or a genetic marker.

Abstract: The invention is directed to a variety of multiplexing methods used to amplify and/or genotype a variety of samples simultaneously.

Abstract: The present invention relates to a test piece having a simple structure, by which HDL cholesterol can be measured easily using a small amount of specimen. A reagent layer (2) is formed on a support (1), and an enzyme reagent for measuring cholesterol, a first surfactant that makes a solubility of a high-density lipoprotein (HDL) higher than that of a lipoprotein other than the HDL, and a second surfactant that inhibits the lipoprotein other than the HDL from dissolving are contained in the reagent layer (2).

Abstract: The present invention relates to novel chemiluminescent compounds, to a method for synthesizing these compounds, to derivatives and conjugates comprising these compounds, to the use of these compounds or conjugates thereof in chemiluminescence based assays, especially in immunoassays.

Abstract: The invention relates to stannous halide stabilized and/or enhanced alkaline solutions to be used in combination with calorimetric, luminescent and fluorescent assays. The buffered solutions stabilize hydrogen peroxide at a pH greater than 7.0 and preferably greater than 9.0. By stabilizing and/or enhancing hydrogen peroxide in the buffer system, the compositions used in such assays may have a higher shelf-life and provide enhanced detection of the subject analyte.

Abstract: This invention provides a method for differentially and simultaneously quantifying two target analytes via a single assay operation with the use of a single type of reagent in each of the two steps, i.e., the first step and the second step. In this method, the reaction product associated with the first target analyte is detected at an early stage of the second step and the reaction product associated with the second target analyte is then detected.

Abstract: Provided are diagnostic and therapeutic methods of treating sarcoidosis comprising the use of microbial catalase-peroxidase protein, its peptide fragments, or derivatives thereof.

Abstract: The present invention relates to methods and kits for determining autoantibodies to myeloperoxidase or a myeloperoxidase fragment and myeloperoxidase or a myeloperoxidase fragment in a test sample.

Abstract: Methods of activating an apo-peroxidase are provided. The methods include the steps of providing a solution comprising an apo-peroxidase and a heme choline ester, hydrolyzing the heme choline ester with a choline esterase, and converting the apo-peroxidase to active peroxidase. The methods disclosed herein also provide for detecting the presence of an analyte in a sample. The methods include providing a binder capable of specifically binding the analyte wherein the binder is attached to a solid surface, applying the sample to the solid surface under conditions that permit binder-analyte binding, adding a choline esterase-conjugated binder that binds to the analyte, adding an apo-peroxidase, a heme choline ester, a peroxide, and a peroxide-activated signal generator, and detecting the signal produced by the peroxide-activated signal generator. An associated kit and components are also provided.

Abstract: The present invention relates to stabilizing compositions, methods and kits for chemiluminescent assays.

Abstract: The present disclosure relates to isolated antibodies that can be used in an assay to determine the concentration levels of myeloperoxidase (MPO) in a test sample. Additionally, the present disclosure also relates to the use of improved test sample handling methods in assays in order to preserve the original MPO levels in the test sample.

Abstract: Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters.

Abstract: The present invention relates to interdependent assays and kits for detecting and at least two analytes of interest in a single test sample.

Abstract: The present invention provides systems for isolating, characterizing, and modulating brain dendritic cells. The invention may allow a better understanding of and opportunities to modulate neurodevelopmental processes (such as, for example, neurogenesis) and neurological diseases (such as, for example, Alzheimer's Disease).

Abstract: Luminescence-based compositions for measurement of aspartate aminotranserase, alanine aminotransferase, total-bilirubin, creatinine phosphokinase, or lactate dehydrogenase, wherein the chemiluminescence-based composition comprises 0.01-100 mM of luminol, 0.001-1000 U/mL of horseradish peroxidase (HRP), 0-10% of Triton X-100, 0-100 mM PIP, and 5˜500 mM of buffer at pH 6˜9, and the luminescence-base composition measures Aspartate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin, or lactate dehydrogenase (LDH).

Abstract: The present invention provides a highly specific anti-Caveolin-1 polyclonal antibody, which is prepared by the following steps: (1) providing an antigen comprising a fragment of Caveolin-1 peptide sequence SEQ ID NO: 1; and (2) subcutaneously injecting said antigen into a rabbit to produce the anti-Caveolin-1 polyclonal antibody. The present invention also provides an antigen and a method used for preparing the anti-Caveolin-1 polyclonal antibody, and a kit used for detecting Caveolin-1 in a specimen.

Abstract: In the serum, PSP94 occurs as a free form or is associated with a carrier protein. PSP94 in its bound form has been quantified in the blood of prostate cancer patients and these measurements have shown utility as evaluation or prognosis of prostate cancer. Diagnostic assays, methods, and kits for detecting a free form of PSP94, and reagents such as antibodies able to bind to a free form of PSP94 are disclosed herein.

Abstract: A method for detecting an aqueous ink composition contained in an ink container, the aqueous ink composition containing at least one reducing sugar, includes measuring the type or concentration of the reducing sugar contained in the aqueous ink composition, and determining the type or remaining amount of the aqueous ink composition on the basis of the result.

Abstract: A specific and sensitive in vitro ELISA assay and diagnostic test kit is disclosed for determining levels of NT-proBNP protein in a variety of bodily fluids, non-limiting examples of which are blood, serum, plasma, urine and the like. The NT-proBNP ELISA assay test employs the sandwich ELISA technique to measure circulating NT-proBNP in human plasma. In order to obtain antibodies with specific binding properties for targeted amino acid sequences within human proBNP, recombinant human proBNP (or rhproBNP) was expressed and purified for use as an immunogen. Polyclonal antibodies (PAb) to specific amino acid sequences were subsequently purified from goat serum by sequential affinity purification. Monoclonal antibodies were raised against specific polypeptides. Recombinant human NT-proBNP (or rhNT-proBNP) was expressed and purified in order to obtain material for use in calibration of a quantitative method for measurement of human NT-proBNP.

Abstract: Provided are methods and compositions for assaying for ubiquitin agents that are enzymatic components of ubiquitin-mediated proteolysis and, more particularly, methods and compositions for assaying for agents that modulate the activity of such ubiquitin agents.

Abstract: Disclosed herein is a dry fluorescence biosensor strip for rapid detection of a target analyte present in bodily fluids. The dry fluorescence biosensor strip comprises a sample receptacle and a dry detection membrane. The sample receptacle receives a sample of one of the bodily fluids. The dry detection membrane detects presence of the target analyte in the received sample based on fluorescence induced on the dry detection membrane. Fluorescent signals are emitted from the dry detection membrane on induction of fluorescence. A fluorometer quantifies measurable properties of the target analyte based on the emitted fluorescent signals. The dry fluorescence biosensor strip may further comprise a filtration membrane for filtering the received sample. The filtered sample migrates from the filtration membrane to the dry detection membrane. The dry detection membrane may then detect presence of the target analyte in the filtered sample.

Abstract: An assay test kit is used in a mouth rinse sample collection procedure involving collecting a mouth rinse sample from a patient. A neutrophil reactant diagnostic reagent is delivered to the rinse sample immediately after collection. Diagnostic reagents containing diammonium salts that are reactive with neutrophil enzymes are added to the sample to produce visually discernable color change in the solution after a selected period of time. Most preferably, the reagents are selected to produce a color change after a period of time. The reaction is then measured by comparing the resulting sample color change by eye or mechanically to a standardized color chart/swatch that correlates with predetermined neutrophil concentrations and/or periodontal disease levels.

Abstract: The present invention encompasses compositions and methods useful for diagnosing subjects with abdominal aortic aneurysms. The invention relates to the use of protein biomarkers whose levels are different in subjects with abdominal aortic aneurysms relative to normal subjects.

Abstract: Methods and compositions for identifying ovarian cancer in a patient sample are provided. The methods of the invention comprise detecting overexpression of at least one biomarker in a body sample, wherein the biomarker is selectively overexpressed in ovarian cancer. In preferred embodiments, the body sample is a serum sample. The biomarkers of the invention include any genes or proteins that are selectively overexpressed in ovarian cancer, including, for example, acute phase reactants, lipoproteins, proteins involved in the regulation of the complement system, regulators of apoptosis, proteins that bind hemoglobin, heme, or iron, cytostructural proteins, enzymes that detoxify metabolic byproducts, growth factors, and hormone transporters. In some aspects of the invention, overexpression of a biomarker of interest is detected at the protein level using biomarker-specific antibodies or at the nucleic acid level using nucleic acid hybridization techniques.

Abstract: The present invention provides assays for detecting ADP, GDP and inorganic phosphate. These assays can be used directly to detect the presence of ADP, GDP and inorganic phosphate or can be used as part of a number of methods for identifying candidate agents that bind to a target protein or serve as modulators of the biological activity of a target protein.

Abstract: Methods for characterizing the near term risk of experiencing a major adverse cardiac event in a patient presenting with chest pain are provided. In one embodiment the method comprises determining the level of myeloperoxidase (MPO) activity in a bodily sample obtained from the patient. In another embodiment, the method comprises determining the level of MPO mass in a bodily sample obtained from the patient. In another embodiment, the method comprises determining the level of one or more select MPO-generated oxidation products in a bodily sample obtained from the patient. The select MPO-generated oxidation products are dityrosine, nitrotyrosine, chlorotyrosine, methionine sulphoxide or an MPO-generated lipid peroxidation product.

Abstract: The present invention relates to assays and kits for detecting haloperoxidase activity in test samples.

Abstract: The present invention relates to a method for the treatment of depression comprising administering a therapeutically effective amount of gaboxadol to a patient, wherein the level of one or more inflammatory markers in said patient is increased or abnormal. The present invention also relates to a method for the treatment of stress-mediated depression comprising administering a therapeutically effective amount of gaboxadol to a patient, wherein the level of one or more inflammatory markers is increased or abnormal in said patient. The present invention also relates to a method for the treatment of depression or the amelioration of one or more depressive symptoms comprising administering a therapeutically effective amount of gaboxadol to a patient, wherein the clinical presentation of one or more symptoms of depression are the physiological effect of a general medical condition.

Abstract: The present invention relates to cytokine receptor-binding compounds, such as non-competitive VEGF receptor, IL-1 receptor, IL-4 receptor, or IGF-1 receptor-binding peptides and petidomimetic antagonists, and therapeutic uses of such compounds. The compounds of the present invention may be used in the treatment of cytokine-associated diseases such as proliferative disorders (for example, colon, breast, prostate, and lung cancer), abnormal neovascularization and angiogenesis, age-related macular degeneration, and proliferative and/or inflammatory skin disorders such as psoriasis.

Abstract: The present invention relates to the treatment of CJD and other spongiform encephalopathies by increasing the level and/or activity of hydrogen peroxide degrading enzymes, such as catalase and glutathione peroxidase, in order to deplete hydrogen peroxide and prevent the build up of gaseous oxygen in the brains of patients. Various aspects are provided, including screening methods for agents for the treatment of spongiform encephalopathy.

Abstract: A method for detecting biofuel producing microbes in a colorimetric assay by providing a microbe, a feedstock, and an assay solution. The assay solution contains an alcohol oxidase, a peroxidase, and a peroxidase co-substrate. The microbe is cultured with the feedstock as part of a culture medium that produces a detectable amount of bioalcohol. The culture medium is contacted with the assay solution to produce a colorimetric reaction to screen for a biofuel producing microbe.

Abstract: A method to detect the presence or amount of at least one molecule for an enzyme-mediated reaction in a multiplex luminogenic/nonluminogenic assay is provided.

Abstract: The invention provides previously uncharacterized variants of PDE11A that are correlated with a newly discovered form of Cushing Syndrome that presents at a young age. The invention also provides methods useful to research, screen for, treat, or prevent diagnose the disease using the PDE11A variants, as well as other methods relating thereto.

Abstract: The invention relates to proteins associated with age-related macular degeneration (AMD). These proteins, which are present in blood, are expressed in individuals with AMD at either elevated or reduced levels compared to healthy individuals. The invention provides methods for diagnosing AMD. The invention provides methods for assessing the efficacy of treatment of AMD. The invention provides methods for monitoring the progression of AMD.

Abstract: Methods for assessing patient risk for platelet-affected disease states are disclosed. Also disclosed are methods for predicting the appropriateness of platelet antagonist therapy, and for monitoring patients during therapeutic intervention or during a combined regimen of therapy and angioplasty.

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: This invention relates to magnetic nanoparticle conjugates and related compositions and methods of use.

Abstract: The invention concerns the identification of proteomes of biological fluids and their use in determining the state of maternal/fetal conditions, including maternal conditions of fetal origin, chromosomal aneuploidies, and fetal diseases associated with fetal growth and maturation. In particular, the invention concerns the identification of the proteome of amniotic fluid (multiple proteins representing the composition of amniotic fluid) and the correlation of characteristic changes in the normal proteome with various pathologic maternal/fetal conditions, such as intra-amniotic infection, or chromosomal defects.

Abstract: The present invention provides compositions, kits, assembles of articles and methodology for detecting multiple target molecules in a sample, such as in a tissue sample. In particular, site-specific deposition of elemental metal is used in conjunction with other means of detection, such as other chromogenic, radioactive, chemiluminescent and fluorescent labeling, to simultaneously detect multiple targets, such a gene, a protein, and a chromosome, in a biological sample. More particularly the multiple targets may be labeled with the specifically deposited metal and other chromogenic labels to allow chromogenic immunohistochemical (IHC) detection in situ by using bright field light microscope.

Abstract: Methods for characterizing the near term risk of experiencing a major adverse cardiac event in a patient presenting with chest pain are provided. In one embodiment the method comprises determining the level of myeloperoxidase (MPO) activity in a bodily sample obtained from the patient. In another embodiment, the method comprises determining the level of MPO mass in a bodily sample obtained from the patient. In another embodiment, the method comprises determining the level of one or more select MPO-generated oxidation products in a bodily sample obtained from the patient. The select MPO-generated oxidation products are dityrosine, nitrotyrosine, chlorotyrosine, methionine sulphoxide or an MPO-generated lipid peroxidation product.

Abstract: A method based is provided for determining the toxicity of engineered nanomaterials (NM). The method comprises in vitro assays for oxidative stress associated with exposure to engineered NM, which comprise assays for: reactive oxygen species production; phase II and glutathione antioxidant molecule expression; activation of MAP and NF-kappa B kinase signaling cascades; production of cytokines, chemokines and adhesion molecules; mitochondrial perturbation and apoptosis; and cellular uptake and subcellular localization of the NM. The method further comprises in vivo assays for oxidative stress in subjects exposed to NM.

Abstract: The invention provides a method for determining concentration of myeloperoxidase (MPO) in a human blood sample comprising: (a) providing a human peripheral blood sample stored under MPO preservation conditions; and (b) determining concentration of MPO in a plasma sample derived from the human peripheral blood sample. In a preferred embodiment, the MPO preservation conditions used in the invention comprise storage of the human peripheral blood sample in a plasma collection tube containing a leukocyte MPO secretion inhibitor. In this embodiment, the leukocyte MPO secretion inhibitor is preferably ethylene diamine tetraacetic acid (EDTA). The assays used in the inventive methods can comprise any clinically useful assay for determining MPO plasma concentration, including sandwich and competitive immunoassays, clinical chemistry assays and enzymatic assays.

Abstract: The present invention provides immunoassays which are highly specific for detection in biological samples of methamphetamine and other drugs of abuse of the methamphetamine group such as ecstasy and other ecstasy class drugs. More particularly, competitive assays are provided comprising: (a) contacting said sample with (i) a pseudoephedrine/carrier conjugate in which pseudoephedrine is linked via its hydroxyl group to the carrier and (ii) an antibody which is capable of binding both one or more drugs of the methamphetamine group and said conjugate; and (b) determining whether the binding of said antibody to said conjugate is reduced by the presence of said sample, a reduction in binding being indicative that the sample contains a methamphetamine group drug.

Abstract: The present disclosure provides systems for the rapid and sensitive detection of organisms and molecules in samples. Reactants that produce Raman-active products are used in combination with Raman light scattering. The present disclosure can also be used to measure enzyme-kinetics.

Abstract: The present invention relates to a method capable of detecting proliferative bacteria in food and beverage, particularly acid or neutral beverage at low cost within a short time, a detection kit which enables simple measurement, and a technology for examination of harmful bacteria in food and beverage with respect to a method for rapid determination of proliferation properties of bacteria capable of producing guaiacol in food and beverage. There is disclosed a method for detecting bacteria capable of producing guaiacol, which comprises culturing or incubating a culture solution containing a specimen for a predetermined time in the presence of vanillic acid, and measuring the produced guaiacol by qualitative or quantitative analysis. Also there is disclosed a kit for detection of bacteria capable of producing guaiacol, comprising a container, and an acid or neutral culture medium containing a vanillic acid substrate for production of guaiacol, which is contained in the container and also sterilized and sealed.

Abstract: Method for increasing the emission of light from a chemiluminescent reaction including luminol, a peroxidase enzyme, an oxidant and a mediator of electrons through the use of a hypernucleophilic acylation catalyst belonging to the class of 4-aminopyridines. It is also described the use in diagnostic assays of chemiluminescent substrates containing said catalysts.