Schizophrenia is a serious psychiatric disorder with several symptoms including cognitive dysfunction. Although the causes of schizophrenia are still unclear, there is a strong suspicion that the abnormality in N- methyl-D-aspartate (NMDA) receptor may contribute to schizophrenia symptoms. In the present study, the effect of treadmill exercise on the NMDA receptor expression was evaluated using MK-801-induced schizophrenia mice. Immunohistochemistry for expressions of NMDA receptor tyrosine hydroxylase (TH) was conducted. Western blot for brain-derived neurotrophic factor (BDNF) was also performed. In the present results, the mice in the MK-801-treated group displayed re-duced NMDA receptor expression. Enhanced TH expression and sup-pressed BDNF expression were also observed in the MK-801-treated mice. Treadmill exercise improved NMDA receptor expression in the MK-801-induced schizophrenia mice. Treadmill exercise also suppressed TH expression and enhanced BDNF expression in the MK-801-in-duced schizophrenia mice. The present study showed that down-regu-lation of NMDA receptor demonstrated schizophrenia-like parameters, meanwhile treadmill running improved schizophrenia-related parame-ters through enhancing NMDA receptor expression.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Materialsimmunohistochemistrydescribed Experimental animals and design Exercise protocol Tissue preparation NMDA receptors immunohistochemistry Tyrosine hydroxylase immunohistochemistry Western blot for BDNF expression RESULTS Effect of treadmill exercise on the number of NMDA receptor-positive cells in the dentate gyrus. Effect of treadmill exercise on the number of NMDA receptor-positive cells in the prefrontal cortex Effect of treadmill exercise on the TH expression in the striatum Effects of treadmill exercise on the BDNF expression in the hippocampus DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES