Aversion-resistant fentanyl self-administration in mice
| Autor: | Anna K. Radke, Sean C. Monroe |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Male
Sucrose media_common.quotation_subject Drinking Behavior Self Administration Choice Behavior Article Fentanyl law.invention 03 medical and health sciences Mice 0302 clinical medicine Sucrose solution Operant conditioning chamber Sex Factors law medicine Animals media_common Pharmacology Quinine Dose-Response Relationship Drug business.industry Addiction 030227 psychiatry Analgesics Opioid Behavior Addictive Mice Inbred C57BL Affect Drinking in the dark Opioid Anesthesia Taste Conditioning Operant Female Self-administration business 030217 neurology & neurosurgery medicine.drug |
| Zdroj: | Psychopharmacology (Berl) |
| ISSN: | 1432-2072 |
| Popis: | RATIONALE: Animal models of compulsive drug use that continues despite negative consequences can be used to investigate the neural mechanisms of addiction. However, models of punished or aversion-resistant opioid self-administration are notably lacking. OBJECTIVES: We sought to develop an aversion-resistant, oral fentanyl self-administration paradigm. METHODS: In Experiment 1, C57BL/6J male and female, adult mice consumed fentanyl (10 μg/mL) in a two-bottle, drinking in the dark task and escalating concentrations of quinine were added to the bottles. In Experiment 2, mice were trained to administer oral fentanyl (10 μg/mL) in an operant response task. Quinine was next added to the fentanyl solution in escalating concentrations. In Experiment 3, mice were trained to respond for oral fentanyl or fentanyl adulterated with 500 μM quinine on every session. In Experiment 4, mice were trained to respond for a 1% sucrose solution before introduction of quinine. RESULTS: Quinine reduced two-bottle choice consumption in males but not in females. Both sexes demonstrated the ability to detect the selected concentrations of quinine in fentanyl. In the operant chamber, mice responded robustly for oral fentanyl but introduction of quinine at any stage of training was insufficient to reduce responding. In contrast, quinine reduced responding for sucrose at concentrations above 250 μM. CONCLUSIONS: Mice will respond for and consume oral fentanyl in both a two-bottle choice and an operant-response task. Quinine is detectable in fentanyl but mice will continue to respond for and consume fentanyl with quinine in both paradigms. These data support the use of these models in behavioral studies of compulsive-like opioid use. |
| Databáze: | OpenAIRE |
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