Caffeine protects against memory loss induced by high and non-anxiolytic dose of cannabidiol in adult zebrafish (Danio rerio)
Autor: | Régis Junior Antonioli, Antonio Waldo Zuardi, Luiza Reali Nazario, Carla Denise Bonan, Rosane Souza da Silva, Jaime Eduardo Cecílio Hallak, Katiucia Marques Capiotti, José Alexandre de Souza Crippa |
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Rok vydání: | 2015 |
Předmět: |
medicine.medical_treatment
Clinical Biochemistry Adenosine A2A/drug effects Pharmacology Receptor Adenosine A2A/drug effects Toxicology Biochemistry Adenosine A2 Receptor Antagonists/pharmacology Avoidance Learning/drug effects Caffeine/pharmacology cannabidiol Behavioral Neuroscience chemistry.chemical_compound Behavior Animal/drug effects Cannabidiol Zebrafish caffeine Behavior Animal Adenosine A1 Receptor Antagonists/pharmacology Animal/drug effects Adenosine A2 Receptor Antagonists surgical procedures operative Drug Psychology Caffeine Receptor medicine.drug Receptor Adenosine A2A medicine.drug_class Motor Activity/drug effects CANABINOIDES Adenosine A1 Receptor Antagonists Motor Activity Adenosine receptor antagonist digestive system Anxiolytic Dose-Response Relationship Adenosine A1 receptor Memory Disorders/chemically induced medicine Avoidance Learning Animals Biological Psychiatry Behavior Memory Disorders Dose-Response Relationship Drug zebrafish Adenosine Adenosine receptor digestive system diseases Cannabidiol/antagonists & inhibitors chemistry Central Nervous System Stimulants/pharmacology Central Nervous System Stimulants Cannabinoid |
Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Repositório Institucional PUCRS Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUC_RS Pharmacology, Biochemistry and Behavior, 135, 210-6. Elsevier |
ISSN: | 1873-5177 0091-3057 |
Popis: | Cannabidiol (CBD) has been investigated in a wide spectrum of clinical approaches due to its psychopharmacological properties. CBD has low affinity for cannabinoid neuroreceptors and agonistic properties to 5-HT receptors. An interaction between cannabinoid and purinergic receptor systems has been proposed. The purpose of this study is to evaluate CBD properties on memory behavioral and locomotor parameters and the effects of pre-treatment of adenosine receptor blockers on CBD impacts on memory using adult zebrafish. CBD (0.1, 0.5, 5, and 10mg/kg) was tested in the avoidance inhibitory paradigm and anxiety task. We analyzed the effect of a long-term caffeine pre-treatment (~20mg/L - four months). Also, acute block of adenosine receptors was performed in co-administration with CBD exposure in the memory assessment. CBD promoted an inverted U-shaped dose-response curve in the anxiety task; in the memory assessment, CBD in the dose of 5mg/Kg promoted the strongest effects without interfering with social and aggressive behavior. Caffeine treatment was able to prevent CBD (5mg/kg) effects on memory when CBD was given after the training session. CBD effects on memory were partially prevented by co-treatment with a specific A2A adenosine receptor antagonist when given prior to or after the training session, while CBD effects after the training session were fully prevented by adenosine A1 receptor antagonist. These results indicated that zebrafish have responses to CBD anxiolytic properties that are comparable to other animal models, and high doses changed memory retention in a way dependent on adenosine. |
Databáze: | OpenAIRE |
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