Jun 2, 2020

Clozapine Improves Behavioral and Biochemical Outcomes in a MK-801-Induced Mouse Model of Schizophrenia

Journal of Environmental Pathology, Toxicology and Oncology : Official Organ of the International Society for Environmental Toxicology and Cancer
Syed Suhail AndrabiSuhel Parvez


Glutamatergic N-methyl-D-aspartate (NMDA) receptors have critical roles in several neurological and psychiatric diseases. Dizocilpine (MK-801) is a ligand at phencyclidine recognition sites that is associated with NMDA receptor-coupled cation channels, where it acts as a potent noncompetitive antagonist of central glutamate receptors. In this study, we investigate the effect of clozapine on MK-801-induced neurochemical and neurobehavioral alterations in the prefrontal cortex of mice. Acute administration of NMDA noncompetitive antagonist MK-801 impairs motor coordination, grip strength, and locomotor activity. Clozapine is the only medication that is indicated for treating refractory schizophrenia, due to its superior efficacy among all antipsychotic agents; however, its mechanism is not well understood. To understand its mechanism, we investigated the effects of clozapine on motor coordination, locomotor activity, and grip strength in mice against the NMDA receptor antagonist MK-801. MK-801 induced elevations in acetylcholinesterase (AChE) activity, monoamine oxidase (MAO) activity, and c-fos expression. The administration of clozapine inhibited the effects caused by MK-801 (0.2 mg/kg body weight). Motor coordination and grip ...Continue Reading

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Mentioned in this Paper

Mouse Model
Cation Channel Blocker
Mental Disorders
Protein Overexpression
c-fos Genes
DNA Methylation

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