摘要:
A method or platform for monoclonal antibody based biomarker discovery is disclosed. The method according to the invention provides for the integration of analyte collection, hybridoma screening and nanovolume integrated mass spectrometry (NVIMS) to achieve a robust screening system that is capable, for example, of cutting 4-6 years off of the classical biomarker discovery and development process. The invention provides a platform for the rapid, high-throughput production, isolation and characterization of, e.g., disease specific biomarkers together with highly specific monoclonal antibodies. The method of the invention has a variety of applications such as, but not limited to, drug testing, biohazard applications, ecological applications, physiological applications and/or pathology screening applications. The method of the invention is also capable of being performed or used as or with a high-throughput screening process or system of the invention.
摘要:
The invention relates to methods for detecting and identifying potential biomarkers of high-grade cervical dysplasia in an individual human subject. The invention also relates to newly discovered biomarkers, as set forth in Tables 1-4 herein, which are associated with the dysplastic state of cervical cells. It has been discovered that a differential level of expression of any of these markers or combination of these markers correlates with a dysplastic condition in a human subject, e.g., a patient.
摘要:
A combination of “bottom up” and “top down” MS analysis of posttranslational modifications in complex proteins is described. The method comprises digestion of the protein with an enzyme that forms larger peptide fragments than trypsin (>3000 D), performing HPLC with the fragments and applying a new data acquisition strategy using on-line coupling with e.g. LTQ-FTMS, a hybrid mass spectrometer that couples a linear ion trap with a Fourier transform ion cyclotron resonance (FTICR) cell. The method is applied to analysis of posttranslational modifications of protein isoforms.
摘要:
Methods of identifying subjects having, or at risk of developing, diabetes, obesity, and/or hypertension are disclosed, as well as methods of identifying biomarkers for diabetes, obesity, and/or hypertension, and biomarkers identified by such methods.
摘要:
Methods, compositions, and kits related to the use of multi-ligand affinity chromatography are described. The methods include those related to identification of glycoprotein panels for analyzing and diagnosing disease.
摘要:
An electrophoretic technique is provided for moving a plurality of chemicals into distinct zones for immobilization on a solid surface. The technique includes introducing a first electrolyte and a second electrolyte into a channel, and interposing between the first and second electrolytes at least one solution containing a plurality of chemicals. Under a given electric field, the first electrolyte has anions with higher effective mobility than the chemicals and the second electrolyte has anions with lower effective mobility than the chemicals. When an electrical potential is applied across the length of the channel the plurality of chemicals in the solution are moved into spatial zones. The chemicals in the zones can then be bound to the interior surface of the channel. Chemicals so bound to the wall surface can be used to build very small structures such as arrays and electrical conducting structures.
摘要:
A process is described for removing low density and very low density lipoproteins from blood plasma or serum and recovering the plasma or serum in a physiologically acceptable form. The method involves in a preferred embodiment passing plasma or serum through a cationic ion exchanger equilibrated with a physiologically acceptable saline solution. The ion exchanger is a water insoluble hydrophilic, water swellable cross-linked regenerated or microgranular cellulose matrix substituted with hydroxy C.sub.2 -C.sub.4 alkyl group. The ion exchanger capacity is provided by sulphate groups substituted with from 2 to 6 meq/g. The take up of low density lipoproteins is enhanced by recycling the plasma through the column.
摘要:
An integrated nucleic acid sample analysis system for matrix-assisted laser-desorption/ionization time-of-flight mass spectroscopy (MALDI-TOF MS) is described. The integrated system comprises a miniaturized sample preparation compartment interfaced directly with a MALDI-TOF ionization surface for amplifying and/or otherwise chemically manipulating an oligonucleotide analyte and presenting the analyte to a MALDI ionization surface for mass spectrometry analysis. The miniaturized integrated sample handling system disclosed herein finds application in the amplification and analysis of DNA samples for genetic diagnosis and other uses.
摘要:
Container systems for stable storage of pharmaceutical compounds are disclosed. The container systems prevent the formation of adducts between pharmaceutical compounds and aldehydes during storage of these compounds in containers sealed with elastomeric stoppers that leach aldehydes. Methods for determining the presence of these adducts are also disclosed.
摘要:
The invention relates to the carbonylation of cross linked substituted and unsubstituted polysaccharides, their copolymers with macroporous synthetic polymers, macroporous synthetic polymers and rigid supports with pendant hydroxyalkyl groups. The carbonylated product can be used to prepare an affinity chromatography matrix which remains an uncharged species at varying pH's. The carbonylated product is also useful for the preparation of other compounds: Typical polysaccharides are agarose, starch, dextran, cellulose and regenerated cellulose, typical macroporous synthetic polymers are acrylamides, acrylates and methacrylates, typical rigid supports are silica beads coated with hydroxy alkyl groups and typical cabonylating agents are N,N'-carbonyl diimidazole; N,N'carbonyl di-1,2,3-benzotriazole; and N,N'-carbonyl di-1,2,4-triazole.