Cholinergic antagonist 3-quinuclidinyl benzilate - Impact on learning and memory in Wistar rats. 2014

Jan Misik, and Jan Vanek, and Kamil Musilek, and Jiri Kassa
Department of Toxicology, Faculty of Military Health Sciences, University of Defence, Trebesska 1575, 500 01 Hradec Kralove, Czech Republic. Electronic address: misik@pmfhk.cz.

3-Quinuclidinyl benzilate (QNB) represents a non-selective, competitive antagonist of cholinergic receptors, which has been previously used to generate cognitive deficits in animal models of neurodegenerative disorders. The aim of this study was evaluation of QNB potency for creation of cognitive impairment during the acquisition, consolidation and retrieval stages of learning and memory in rats. Male Wistar rats were subjected to a water maze task with hidden platform and a step-through passive avoidance task. The water maze test was carried out in two separate experiments focused on spatial learning (acquisition test) and long-term spatial memory (retrieval test). QNB doses (0.5, 1.0, 2.0 and 5.0 mg kg(-1)) were administered to rats intraperitoneally before training sessions (acquisition test) or before probe trial (retrieval test). A QNB dose of 2.0 mg kg(-1) was administered to rats in the passive avoidance task before training (acquisition test), immediately post-training (consolidation test) or 24h pre-retention (retrieval test). QNB significantly impaired the acquisition in the water maze at doses 0.5-5.0 mg kg(-1) as well as the acquisition of passive avoidance task. In contrast, consolidation and retrieval were not affected by QNB, indicating that QNB specifically affects the stage of acquisition.

UI MeSH Term Description Entries
D007859 Learning Disabilities Conditions characterized by a significant discrepancy between an individual's perceived level of intellect and their ability to acquire new language and other cognitive skills. These may result from organic or psychological conditions. Relatively common subtypes include DYSLEXIA, DYSCALCULIA, and DYSGRAPHIA. Adolescent Learning Disabilities,Adult Learning Disabilities,Child Learning Disabilities,Developmental Academic Disability,Developmental Academic Disorder,Developmental Disabilities of Scholastic Skills,Learning Disabilities, Adolescent,Learning Disabilities, Child,Learning Disorders,Academic Disorder, Developmental,Adult Learning Disorders,Developmental Disorders of Scholastic Skills,Learning Disorders, Adult,Learning Disturbance,Scholastic Skills Development Disorders,Academic Disabilities, Developmental,Academic Disability, Developmental,Academic Disorders, Developmental,Adolescent Learning Disability,Adult Learning Disability,Adult Learning Disorder,Child Learning Disability,Developmental Academic Disabilities,Developmental Academic Disorders,Disabilities, Adolescent Learning,Disabilities, Adult Learning,Disabilities, Child Learning,Disabilities, Developmental Academic,Disabilities, Learning,Disability, Adolescent Learning,Disability, Adult Learning,Disability, Child Learning,Disability, Developmental Academic,Disability, Learning,Disorder, Learning,Disorders, Adult Learning,Disorders, Learning,Disturbance, Learning,Disturbances, Learning,Learning Disabilities, Adult,Learning Disability,Learning Disability, Adolescent,Learning Disability, Adult,Learning Disability, Child,Learning Disorder,Learning Disorder, Adult,Learning Disturbances
D008297 Male Males
D009043 Motor Activity Body movements of a human or an animal as a behavioral phenomenon. Activities, Motor,Activity, Motor,Motor Activities
D011813 Quinuclidinyl Benzilate A high-affinity muscarinic antagonist commonly used as a tool in animal and tissue studies. Benzilate, Quinuclidinyl
D011939 Mental Recall The process whereby a representation of past experience is elicited. Recall, Mental
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001362 Avoidance Learning A response to a cue that is instrumental in avoiding a noxious experience. Aversion Behavior,Aversion Learning,Aversive Behavior,Aversive Learning,Avoidance Behavior,Aversion Behaviors,Aversive Behaviors,Avoidance Behaviors,Behavior, Aversion,Behavior, Aversive,Behavior, Avoidance,Behaviors, Aversion,Behaviors, Aversive,Behaviors, Avoidance,Learning, Aversion,Learning, Aversive,Learning, Avoidance

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