Biomarker for mental disorders, including cognitive disorders, and method of using said biomarker for the detection of mental disorders, including cognitive disorders

摘要

Peptide or protein for use as a biomarker for the detection of psychiatric diseases or cognitive impairment, in which the protein is a precursor to neurexin-2-beta consisting of the amino acid sequence expressed by SEQ ID No. 1 or the protein it is a protein consisting of the amino acid sequence obtained from SEQ ID No. 1 by deletion, exchange and / or addition of one to three amino acids, and the peptide is the NRX2B peptide derived from a neurexin-2-beta precursor that It consists of the amino acid sequence expressed by SEQ ID No. 2 or the peptide is a peptide consisting of an amino acid sequence derived from SEQ ID No. 2 by deletion, exchange and / or addition of one to three amino acids.