The present invention provides a method for diagnosing schizophrenia, and a schizophrenia diagnostic reagent or device for use in the method. The present invention further provides a therapeutic or ameliorating agent for schizophrenia, which is effective for the treatment or amelioration of schizophrenia. The therapeutic or ameliorating agent for schizophrenia contains a carbonyl scavenger or a carbonyl-modified protein formation inhibitor as an active ingredient. The method for diagnosing schizophrenia according to the present invention includes measuring at least one parameter in a subject, the parameter being selected from the group consisting of: (1) a genetic abnormality of glyoxalase I gene; (2) the expression level or activity of glyoxalase I in a biological sample; (3) the amount of a carbonyl compound or a carbonyl-modified protein that is a protein modified with the carbonyl compound; and (4) the amount of pyridoxal in a biological sample.
本发明提供了一种用于诊断精神分裂症的方法,以及用于该方法的精神分裂症诊断试剂或设备。本发明进一步提供了一种治疗或改善精神分裂症的药剂,该药剂对于治疗或改善精神分裂症有效。用于治疗或改善精神分裂症的药剂包含醛固定剂或醛修饰蛋白形成
抑制剂作为活性成分。根据本发明的诊断精神分裂症的方法包括在受试者中测量至少一个参数,所述参数选自以下组合:(1)甘
氧化酶I
基因的遗传异常;(2)
生物样本中甘
氧化酶I的表达
水平或活性;(3)蛋白质中醛化合物或经醛化合物修饰的蛋白质的量;以及(4)
生物样本中
吡哆醛的量。