Analysis of glycan-related gene manipulated mice as new animal models of mental disease

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In this study, we focused on the functions of glycosyltransferases that acts as key factors in behavioral regulators. To reveal the relationships between those glycosyltransferases and human mental / neurological disease, we employed several strains of gene mamipulated mice and behavioral, histological and biochemical strategies were used. As result, 1) the knockout mouse related to the glycoprotein formation showed enhanced anxiety and disturbance of attention / sensory gating. 2) the knockout mouse related to the glycolipid formation showed severe motor disfunction and developmental retardation that could be explained by axonal disorganization. Therefore these behavioral phenotypes observed in several gene manipulated mice have similarities in human mental / neurological disease, we could confirm that these model mice are useful for the understanding of human disease.