摘要:
It is intended to provide a method of preparing sample for matrix-assisted laser desorption/ionization mass spectrometry using a matrix capable of generating preferred crystals that cause effective ionization of a molecule to be measured. A method of preparing a sample for matrix-assisted laser desorption/ionization mass spectrometry comprising the steps of: preparing a solution of 2,5-dihydroxybenzoic acid of 40 mg/mL to saturated concentration as a matrix solution; and dispensing the matrix solution to a sample to be analyzed by using an inkjet mechanism, to crystallize the 2,5-dihydroxybenzoic acid.
摘要:
The present invention provides a method for deparaffinization useful for mass spectrometric imaging from a paraffin-embedded specimen. A method for deparaffinization of paraffin-embedded specimen comprising the steps of: exposing a biological sample by subjecting a specimen in which the biological sample is embedded in paraffin, to an organic solvent that is compatible with the paraffin under heating condition, to make the paraffin be melted and dissolved in the organic solvent; and removing the paraffin from the specimen by separating the organic solvent dissolving the paraffin, from the exposed biological sample.
摘要:
It is intended to provide a method of preparing sample for matrix-assisted laser desorption/ionization mass spectrometry using a matrix capable of generating preferred crystals that cause effective ionization of a molecule to be measured. A method of preparing a sample for matrix-assisted laser desorption/ionization mass spectrometry comprising the steps of: preparing a solution of 2,5-dihydroxybenzoic acid of 40 mg/mL to saturated concentration as a matrix solution; and dispensing the matrix solution to a sample to be analyzed by using an inkjet mechanism, to crystallize the 2,5-dihydroxybenzoic acid.
摘要:
It is provided a method for identification of the morbidity of epithelial ovarian cancer based on a tissue-type in view of molecular typing which is different from a conventional histopathology, and a marker for identification of a tissue-type of epithelial ovarian cancer. A method for identification of the morbidity of epithelial ovarian cancer based on a tissue-type, comprising: subjecting a sample originated from an individual of interest to a treatment for detecting at least one selected from the group consisting of biological molecules specifically showing an upregulation in expression in a specific tissue-type of epithelial ovarian cancer, and/or at least one selected from the group consisting of biological molecules specifically showing a downregulation in expression in a specific tissue-type of epithelial ovarian cancer, and identifying whether or not the significant detection of the protein is achieved, thereby identifying the tissue-type.
摘要:
It is intended to provide an analysis method for a biological sample with clinical significance, which is a system being simple to such an extent that it can be applied to a clinical field, and capable of capping a molecule ionization suppression in mass spectrometry. Mass spectrometry of a biological sample using immunoprecipitation, comprising the steps of: preparing a sample containing an objective biological molecule; concentrating the biological molecule in the sample by immunoprecipitation using an antibody-bound carrier or a carrier to which a molecule capable of specifically binding to an antibody is bound; washing an immunoprecipitate of the biological molecule by using an aqueous solution containing a charge neutralizing agent as a washing liquid; and detecting the biological molecule by subjecting the washed immunoprecipitate to mass spectrometry.
摘要:
It is provided a method for identification of the morbidity of epithelial ovarian cancer based on a tissue-type in view of molecular typing which is different from a conventional histopathology, and a marker for identification of a tissue-type of epithelial ovarian cancer. A method for identification of the morbidity of epithelial ovarian cancer based on a tissue-type, comprising: subjecting a sample originated from an individual of interest to a treatment for detecting at least one selected from the group consisting of biological molecules specifically showing an upregulation in expression in a specific tissue-type of epithelial ovarian cancer, and/or at least one selected from the group consisting of biological molecules specifically showing a downregulation in expression in a specific tissue-type of epithelial ovarian cancer, and identifying whether or not the significant detection of the protein is achieved, thereby identifying the tissue-type.
摘要:
[Problem]To provide a method for detecting early-stage lung cancer, which reduce a burden on a subject and are excellent in specificity and sensitivity. [Solution]A lung cancer marker comprising a complement C3dg molecule. A method for analyzing a lung cancer marker comprising the steps of: measuring a level of a complement C3dg molecule as a lung cancer marker in a biological sample to acquire a measured level of the complement C3dg molecule; and making an evaluation as to whether the measured level is high or low based on a reference level of the complement C3dg molecule. Preferably, the measured level of the complement C3dg molecule is a value relative to a measured level of a complement C3 full-length molecule in the biological sample, and herein the reference level of the complement C3dg molecule is a value relative to a reference level of the complement C3 full-length molecule.
摘要:
A molecular diagnosis system of ovarian cancers encompasses a detection device configured to obtain a detected value of an expression amount of an apolipoprotein A1 gene in ovarian tissue as a diagnosis subject, a storage device configured to store a normal value of the expression amount of the apolipoprotein A1 gene in normal ovarian tissue, and a determination mechanism configured to determine that the ovarian tissue as the diagnosis subject is clear cell adenocarcinoma when the detected value is lower than the normal value.