METHOD FOR TESTING FOR PSYCHIATRIC DISORDER, TEST KIT FOR PSYCHIATRIC DISORDER, AND METHOD FOR EVALUATING THERAPEUTIC AGENT AND/OR PREVENTION AGENT FOR PSYCHIATRIC DISORDER
Provided are: a method for testing for a psychiatric disorder by means of an objective determination standard based on a biological indicator through a technique that has a single gene as a subject
an test kit for a psychiatric disorder
and a method for evaluating a therapeutic agent and/or prevention agent for a psychiatric disorder. This method for testing for a psychiatric disorder includes: a detection step for detecting the methylation state at a CpG island upstream from an exon I of the BDNF gene in a sample collected from a subject
and an testing step for comparing the methylation state of the sample and the methylation state of the CpG island upstream from the exon I of the BDNF gene in a sample collected from an individual with the psychiatric disorder and an individual without the psychiatric disorder, thus testing whether or not the subject has the psychiatric disorder. Preferably, the psychiatric disorder is depression and/or schizophrenia.