Abstract: Biomarkers for detecting cognitive dysfunction diseases and methods for detecting cognitive dysfunction diseases using the biomarkers are provided. A method for detecting cognitive dysfunction diseases comprising measuring one or more biomarkers for detecting cognitive dysfunction diseases selected from the following (a), (b), and (c) in a biological sample simultaneously or separately: (a) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of apolipoprotein A1 comprising the amino acid sequence represented by SEQ ID NO:1 or a partial peptide thereof; (b) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of transthyretin comprising the amino acid sequence represented by SEQ ID NO:2 or a partial peptide thereof; and (c) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of complement C3 comprising the amino acid sequence represented by SEQ ID NO:3 or a partial peptide thereof.

Abstract: Methods are provided that detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence. Novel biomarkers are also provided for cognitive impairment and non-psychiatric disease, as well as methods for detecting cognitive impairment using such biomarkers. Specifically, a biomarker for diagnosis is provided that comprises a protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of an amino acid sequence expressed by SEQ ID NO: 1, 3, 6, 8, 10, 13, 15, 18, or 20 and selected from the group of partial peptide in these proteins consisting of an amino acid sequence expressed by SEQ ID NO: 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, or 21.

Abstract: The present invention is a method for detecting a specific disease based on the result of a measurement in which the amount of a peptide serving as a biomarker contained in a biological sample is determined by using an LC-MS. A pretreatment process performed before the measurement using the LC-MS includes the steps of preparing a mixed sample solution by adding a stable isotope reagent and a trifluoroacetic acid to the biological sample, where the stable isotope reagent is prepared beforehand by labeling the peptide with a stable isotope; boiling the mixed sample solution; injecting the mixed sample solution after boiled into a solid-phase extraction column to make the peptide be retained in the solid-phase extraction column; and passing a water-soluble organic solvent through the solid-phase extraction column to elute the peptide retained in the solid-phase extraction column and collect the eluate.

Abstract: This invention provides a method for detecting cognitive disfunction diseases including mild cognitive impairment and Alzheimer's disease using a protein and a peptide of the protein different in the presence level in subjects having a normal cognitive function and patients suffering from cognitive disfunction diseases and a biomarker for detecting cognitive disfunction diseases including mild cognitive impairment and Alzheimer's disease containing the protein and the peptide.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: The present invention is a method for detecting a specific disease based on the result of a measurement in which the amount of a peptide serving as a biomarker contained in a biological sample is determined by using an LC-MS. A pretreatment process performed before the measurement using the LC-MS includes the steps of preparing a mixed sample solution by adding a stable isotope reagent and a trifluoroacetic acid to the biological sample, where the stable isotope reagent is prepared beforehand by labeling the peptide with a stable isotope; boiling the mixed sample solution; injecting the mixed sample solution after boiled into a solid-phase extraction column to make the peptide be retained in the solid-phase extraction column; and passing a water-soluble organic solvent through the solid-phase extraction column to elute the peptide retained in the solid-phase extraction column and collect the eluate.

Abstract: Biomarkers for detecting cognitive dysfunction diseases and methods for detecting cognitive dysfunction diseases using the biomarkers are provided. A method for detecting cognitive dysfunction diseases comprising measuring one or more biomarkers for detecting cognitive dysfunction diseases selected from the following (a), (b), and (c) in a biological sample simultaneously or separately: (a) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of apolipoprotein A1 comprising the amino acid sequence represented by SEQ ID NO:1 or a partial peptide thereof; (b) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of transthyretin comprising the amino acid sequence represented by SEQ ID NO:2 or a partial peptide thereof; and (c) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of complement C3 comprising the amino acid sequence represented by SEQ ID NO:3 or a partial peptide thereof.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: This invention provides a method for detecting cognitive disfunction diseases including mild cognitive impairment and Alzheimer's disease using a protein and a peptide of the protein different in the presence level in subjects having a normal cognitive function and patients suffering from cognitive disfunction diseases and a biomarker for detecting cognitive disfunction diseases including mild cognitive impairment and Alzheimer's disease containing the protein and the peptide.

Abstract: Methods are provided that detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence. Novel biomarkers are also provided for cognitive impairment and non-psychiatric disease, as well as methods for detecting cognitive impairment using such biomarkers. Specifically, a biomarker for diagnosis is provided that comprises a protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of an amino acid sequence expressed by SEQ ID NO: 1, 3, 6, 8, 10, 13, 15, 18, or 20 and selected from the group of partial peptide in these proteins consisting of an amino acid sequence expressed by SEQ ID NO: 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, or 21.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: Biomarkers for detecting cognitive dysfunction diseases and methods for detecting cognitive dysfunction diseases using the biomarkers are provided. A method for detecting cognitive dysfunction diseases comprising measuring one or more biomarkers for detecting cognitive dysfunction diseases selected from the following (a), (b), and (c) in a biological sample simultaneously or separately: (a) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of apolipoprotein A1 comprising the amino acid sequence represented by SEQ ID NO:1 or a partial peptide thereof; (b) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of transthyretin comprising the amino acid sequence represented by SEQ ID NO:2 or a partial peptide thereof; and (c) a biomarker for detecting cognitive dysfunction diseases consisting of an intact protein of complement C3 comprising the amino acid sequence represented by SEQ ID NO:3 or a partial peptide thereof.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: Methods are provided that detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence. Novel biomarkers are also provided for cognitive impairment and non-psychiatric disease, as well as methods for detecting cognitive impairment using such biomarkers. Specifically, a biomarker for diagnosis is provided that comprises a protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of an amino acid sequence expressed by SEQ ID NO: 1, 3, 6, 8, 10, 13, 15, 18, or 20 and selected from the group of partial peptide in these proteins consisting of an amino acid sequence expressed by SEQ ID NO: 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, or 21.

Abstract: Methods are provided that detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence. Novel biomarkers are also provided for cognitive impairment and non-psychiatric disease, as well as methods for detecting cognitive impairment using such biomarkers. Specifically, a biomarker for diagnosis is provided that comprises a protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of an amino acid sequence expressed by SEQ ID NO: 1, 3, 6, 8, 10, 13, 15, 18, or 20 and selected from the group of partial peptide in these proteins consisting of an amino acid sequence expressed by SEQ ID NO: 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, or 21.

Abstract: The present invention aims to provide methods to detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence, or in quantity between non-cognitive impairment and patients with cognitive impairment and further aims to present biomarkers comprising said protein and said partial peptide to be used to detect cognitive impairment including Alzheimer disease or mild cognitive impairment. Specifically, a biomarker for diagnosis of psychiatry disease or cognitive impairment comprising protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of amino acid sequence expressed by SEQ ID NOS: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 and selected from the group of partial peptide in these proteins consisting of amino acid sequence expressed by SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 27.

Abstract: Methods are provided that detect cognitive impairment including mild cognitive impairment and Alzheimer disease by using a protein or its partial peptide that differs in presence or absence. Novel biomarkers are also provided for cognitive impairment and non-psychiatric disease, as well as methods for detecting cognitive impairment using such biomarkers. Specifically, a biomarker for diagnosis is provided that comprises a protein fragment or peptide of not less than 5 amino acid residues arising from at least one protein or peptide selected from the group of proteins consisting of an amino acid sequence expressed by SEQ ID NO: 1, 3, 6, 8, 10, 13, 15, 18, or 20 and selected from the group of partial peptide in these proteins consisting of an amino acid sequence expressed by SEQ ID NO: 2, 4, 5, 7, 9, 11, 12, 14, 16, 17, 19, or 21.

Abstract: There are provided a mass spectrum analysis device, a mass spectrum analysis method, and a mass spectrum analysis program capable of accurately analyzing a mass spectrum. The mass spectrum device analyzes a mass spectrum measured for a plurality of samples. The mass spectrum device includes peak position detection means 14 for detecting a peak position where the mass spectrum is at its peak, and coincidence degree calculation means 15 for calculating the coincidence degree of peaks according to the number of peak positions detected in a plurality of mass spectra that is contained in a window having a width for a mass number.