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název v anglickém jazyce není uveden
Bubeníková, Věra ; Šťastný, František (advisor) ; Mareš, Pavel (referee) ; Rokyta, Richard (referee)
The aim of the study was to create a new animal model of schizophrenia based on a neurodevelopmental hypothesis. The central idea of the project has been that a transient insult at early postnatal age will reveal itself in the form of delayed distinct behavioral changes that can be related to schizophrenia. The experimental design used intracerebroventricular (icv) infusion of N-acetyl-L-aspartyl-L-glutamate (NAAG) to rats at postnatal day 12, followed by combination of histology and quantitative morphology in brain tissue obtained within 24 and 96 hours of the NAAG administration and used to investigate possible neurodegeneration. Finally, a battery of behavioural tests was performed several weeks later (late adolescence/early adulthood). NAAG is the most abundant neuropeptide and interacts with the active site of metabotropic glutamate receptors (mGluR II), however, it is also an agonist at NMDA receptors. Neonatal icv infusion of NAAG resulted in detectable damaged neurones in gyrus dentatus. The damage appeared greater at 24 hours, as compared to 96 hours, after the infusion. The presence of damaged neurons was easily demonstrated by Nissl stain, Fluoro Jade В staining combined with Hoechst 33342 and by TUNEL technique. Neonatal administration of NAAG resulted in the appearance of specific, potentially...
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