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van Ingelgom T, Didone V, Godefroid L, Quertemont É. Effects of social housing conditions on ethanol-induced behavioral sensitization in Swiss mice. Psychopharmacology (Berl) 2024; 241:987-1000. [PMID: 38206359 DOI: 10.1007/s00213-024-06527-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
RATIONALE In previous animal model studies, it was shown that drug sensitization is dependent upon physical environmental conditions. However, the effects of social housing conditions on drug sensitization is much less known. OBJECTIVE The aim of the present study was to investigate the effects of social conditions, through the size of housing groups, on ethanol stimulant effects and ethanol-induced behavioral sensitization in mice. MATERIALS AND METHODS Male and female Swiss mice were housed in groups of different sizes (isolated mice, two mice per cage, four mice per cage and eight mice per cage) during a six-week period. A standard paradigm of ethanol-induced locomotor sensitization was then started with one daily injection of 2.5 g/kg ethanol for 8 consecutive days. RESULTS The results show that social housing conditions affect the acute stimulant effects of ethanol. The highest stimulant effects were observed in socially isolated mice and then gradually decreased as the size of the group increased. Although the rate of ethanol sensitization did not differ between groups, the ultimate sensitized levels of ethanol-induced stimulant effects were significantly reduced in mice housed in groups of eight. CONCLUSIONS These results are consistent with the idea that higher levels of acute and sensitized ethanol stimulant effects are observed in mice housed in stressful housing conditions, such as social isolation.
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Affiliation(s)
- Théo van Ingelgom
- Psychologie et Neuroscience Cognitive (PsyNCog), Psychologie Quantitative, Université de Liège, Place des Orateurs 2 (B32), Liège, B-4000, Belgium
| | - Vincent Didone
- Psychologie et Neuroscience Cognitive (PsyNCog), Psychologie Quantitative, Université de Liège, Place des Orateurs 2 (B32), Liège, B-4000, Belgium
| | - Leeloo Godefroid
- Psychologie et Neuroscience Cognitive (PsyNCog), Psychologie Quantitative, Université de Liège, Place des Orateurs 2 (B32), Liège, B-4000, Belgium
| | - Étienne Quertemont
- Psychologie et Neuroscience Cognitive (PsyNCog), Psychologie Quantitative, Université de Liège, Place des Orateurs 2 (B32), Liège, B-4000, Belgium.
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Perez EC, Gehm KH, Lobo VG, Olvera M, Leasure JL. Adulthood effects of developmental exercise in rats. Dev Psychobiol 2024; 66:e22444. [PMID: 38131238 DOI: 10.1002/dev.22444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 10/11/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
Exercise is known to promote efficient function of stress circuitry. The developing brain is malleable and thus exercise during adolescence could potentially exert lasting beneficial effects on the stress response that would be detectable in adulthood. The current study determined whether adolescent wheel running was associated with reduced stress response in adulthood, 6 weeks after cessation of exercise. Male and female adolescent rats voluntarily ran for 6 weeks and then were sedentary for 6 weeks prior to 10 days of chronic restraint stress in adulthood. Fecal corticosterone levels were measured during stress, and escape from the restraint tube was assessed on the final day as a proxy for depressive-like behavior. Anxiety-like behavior was measured 24 h later with the elevated plus maze and locomotor behaviors with the open field. Brain and body measurements were taken immediately following behavioral testing. Developmental exercise and adulthood stress both exerted independent effects on physiological and behavioral outcomes in adulthood. Exercise history increased the odds ratio of escape from restraint stress in males, but did not influence other stress-induced behaviors. In summary, exercise early in life exerted lasting effects, but did not substantially alter the adulthood response to restraint stress.
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Affiliation(s)
- Emma C Perez
- Department of Psychology, University of Houston, Houston, Texas, USA
| | - Kevin H Gehm
- Department of Psychology, University of Houston, Houston, Texas, USA
| | - Valeria Gaume Lobo
- Department of Biology & Biochemistry, University of Houston, Houston, Texas, USA
| | - Marcelle Olvera
- Department of Psychology, University of Houston, Houston, Texas, USA
| | - J Leigh Leasure
- Department of Psychology, University of Houston, Houston, Texas, USA
- Department of Biology & Biochemistry, University of Houston, Houston, Texas, USA
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Reguilón MD, Ferrer-Pérez C, Manzanedo C, Miñarro J, Rodríguez-Arias M. Voluntary wheel running during adolescence prevents the increase in ethanol intake induced by social defeat in male mice. Psychopharmacology (Berl) 2023:10.1007/s00213-023-06461-0. [PMID: 37736785 DOI: 10.1007/s00213-023-06461-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/29/2023] [Indexed: 09/23/2023]
Abstract
RATIONALE Exposure to social defeat (SD) induces a depressive phenotype, increased ethanol seeking and consumption, accompanied by activation of the neuroinflammatory response. However, a resilient response can be potentiated through physical exercise in the form of voluntary wheel running (VWR) during or after exposure to social stress. Therefore, the aim of this study was to test whether physical exercise during adolescence prior to being exposed to SD can enhance resilience to the increase in ethanol intake. METHODS Male mice had access to VWR during adolescence and the effects of social defeat (4 sessions every 72 h) on oral ethanol self-administration (SA) was evaluated. Based on the social interaction test, mice were classified as resilient or susceptible to depressive-like behavior. Two weeks after the last encounter, mice were subjected to the drinking in the dark and oral ethanol SA paradigms. Mice were then sacrificed to measure brain-derived neurotrophic factor (BDNF) levels in the striatum and hippocampus. RESULTS As expected, susceptible mice increased ethanol intake in the oral SA protocol. However, susceptible mice in the exercise condition did not increase ethanol intake, showing similar consumption and motivation for ethanol than the control and resilient groups. On the other hand, decreased BDNF levels were observed in susceptible mice in both experimental conditions compared to the control groups after ethanol SA. CONCLUSIONS The pre-exposure of VWR prevented the increase in consumption and motivation for ethanol induced by SD in susceptible mice. On the other hand, it appears that VWR did not exhibit any significant long-term effects on BDNF signaling, which is mainly affected in susceptible mice after ethanol intake.
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Affiliation(s)
- Marina D Reguilón
- Unit of Research on Psychobiology of Drug Dependence, Department of Psychobiology, Faculty of Psychology, Universitat de València, Avda. Blasco Ibáñez 21, 46010, Valencia, Spain
| | - Carmen Ferrer-Pérez
- Departmento de Psicología Evolutiva, Facultad de Psicología, Universitat de València, Valencia, Spain
| | - Carmen Manzanedo
- Unit of Research on Psychobiology of Drug Dependence, Department of Psychobiology, Faculty of Psychology, Universitat de València, Avda. Blasco Ibáñez 21, 46010, Valencia, Spain
| | - José Miñarro
- Unit of Research on Psychobiology of Drug Dependence, Department of Psychobiology, Faculty of Psychology, Universitat de València, Avda. Blasco Ibáñez 21, 46010, Valencia, Spain
| | - Marta Rodríguez-Arias
- Unit of Research on Psychobiology of Drug Dependence, Department of Psychobiology, Faculty of Psychology, Universitat de València, Avda. Blasco Ibáñez 21, 46010, Valencia, Spain.
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Ferrer-Pérez C, Reguilón MD, Miñarro J, Rodríguez-Arias M. Effect of Voluntary Wheel-Running Exercise on the Endocrine and Inflammatory Response to Social Stress: Conditioned Rewarding Effects of Cocaine. Biomedicines 2022; 10:biomedicines10102373. [PMID: 36289635 PMCID: PMC9598819 DOI: 10.3390/biomedicines10102373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/08/2022] [Accepted: 09/17/2022] [Indexed: 11/21/2022] Open
Abstract
The present paper evaluates the effect of physical activity on the increase of the conditioned rewarding effects of cocaine induced by intermittent social stress and on the neuroinflammatory response that contributes to the enhancement of drug response. For that purpose, three studies were designed in which social stress was induced in different samples of mice through a social-defeat protocol; the mice underwent an increase of physical activity by different modalities of voluntary wheel running (continuous and intermittent access). The results showed that continuous access to running wheels prior to stress enhanced the establishment of cocaine place preference, whereas an intermittent access exerted a protective effect. Wheel running contingent to cocaine administration prevented the development of conditioned preference, and if applied during the extinction of drug memories, it exerted a dual effect depending on the stress background of the animal. Our biological analysis revealed that increased sensitivity to cocaine may be related to the fact that wheel running promotes inflammation though the increase of IL-6 and BDNF levels. Together, these results highlight that physical exercise deeply impacts the organism’s response to stress and cocaine, and these effects should be taken into consideration in the design of a physical intervention.
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Affiliation(s)
- Carmen Ferrer-Pérez
- Department of Psychology and Sociology, Faculty of Humanities and Social Sciences, University of Zaragoza, 44003 Teruel, Spain
| | - Marina D. Reguilón
- Department of Psychobiology, Faculty of Psychology, Universitat de València, 46010 Valencia, Spain
| | - José Miñarro
- Department of Psychobiology, Faculty of Psychology, Universitat de València, 46010 Valencia, Spain
| | - Marta Rodríguez-Arias
- Department of Psychobiology, Faculty of Psychology, Universitat de València, 46010 Valencia, Spain
- Correspondence:
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Becker G, Lespine LF, Bahri MA, Serrano ME, Lemaire C, Luxen A, Tirelli E, Plenevaux A. Exercise against cocaine sensitization in mice: a [18F]fallypride micro-PET study. Brain Commun 2022; 4:fcab294. [PMID: 35169698 PMCID: PMC8833578 DOI: 10.1093/braincomms/fcab294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/18/2021] [Accepted: 12/12/2021] [Indexed: 11/14/2022] Open
Abstract
Abstract
Wheel-running exercise in laboratory rodents (animal model useful to study the neurobiology of aerobic exercise) decreases behavioural markers of vulnerability to addictive properties of various drugs of abuse including cocaine. However, neurobiological mechanisms underpinning this protective effect are far from fully characterized. Here, 28-day-old female C57BL/6J mice were housed with (n = 48) or without (n = 48) a running wheel for 6 weeks before being tested for acute locomotor responsiveness and initiation of locomotor sensitization to intraperitoneal injections of 8 mg/kg cocaine. The long-term expression of sensitization took place 3 weeks after the last session. On the day after, all mice underwent a micro-PET imaging session with [18F]fallypride radiotracer (dopamine 2/3 receptors antagonist). Exercised mice were less sensitive to acute and sensitized cocaine hyperlocomotor effects, such attenuation being particularly well marked for long-term expression of sensitization (η2P = 0.262). Chronic administration of cocaine was associated with a clear-cut increase of [18F]fallypride binding potential in mouse striatum (η2P = 0.170) while wheel-running exercise was associated with a moderate decrease in dopamine 2/3 receptors density in striatum (η2P = 0.075), a mechanism that might contribute to protective properties of exercise against drugs of abuse vulnerability.
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Affiliation(s)
- Guillaume Becker
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
| | - Louis-Ferdinand Lespine
- Department of Psychology, University of Liège, 4000 Liege, Belgium
- Pôle MOPHA, Pôle Est, Centre Hospitalier Le Vinatier, Bron, France
| | - Mohamed Ali Bahri
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
| | - Maria Elisa Serrano
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
| | - Christian Lemaire
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
| | - André Luxen
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
| | - Ezio Tirelli
- Department of Psychology, University of Liège, 4000 Liege, Belgium
| | - Alain Plenevaux
- GIGA—Cyclotron Research Center—In Vivo Imaging, University of Liège, 4000 Liege, Belgium
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Marrero-Cristobal G, Gelpi-Dominguez U, Morales-Silva R, Alvarado-Torres J, Perez-Torres J, Perez-Perez Y, Sepulveda-Orengo M. Aerobic exercise as a promising nonpharmacological therapy for the treatment of substance use disorders. J Neurosci Res 2021; 100:1602-1642. [PMID: 34850988 PMCID: PMC9156662 DOI: 10.1002/jnr.24990] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 10/06/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022]
Abstract
Despite the prevalence and public health impact of substance use disorders (SUDs), effective long-term treatments remain elusive. Aerobic exercise is a promising, nonpharmacological treatment currently under investigation as a strategy for preventing drug relapse. Aerobic exercise could be incorporated into the comprehensive treatment regimens for people with substance abuse disorders. Preclinical studies of SUD with animal models have shown that aerobic exercise diminishes drug-seeking behavior, which leads to relapse, in both male and female rats. Nevertheless, little is known regarding the effects of substance abuse-induced cellular and physiological adaptations believed to be responsible for drug-seeking behavior. Accordingly, the overall goal of this review is to provide a summary and an assessment of findings to date, highlighting evidence of the molecular and neurological effects of exercise on adaptations associated with SUD.
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Affiliation(s)
| | - Ursula Gelpi-Dominguez
- School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR, USA
| | - Roberto Morales-Silva
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR, USA
| | - John Alvarado-Torres
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR, USA
| | - Joshua Perez-Torres
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR, USA
| | - Yobet Perez-Perez
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR, USA
| | - Marian Sepulveda-Orengo
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, PR, USA
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Investigating the Relationship Between Attention-Deficit Hyperactivity Disorder, Obligatory Exercise and Exercise Addiction. Int J Ment Health Addict 2021. [DOI: 10.1007/s11469-021-00662-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Rauhut AS, Warnick JA. Drug Conditioning and Sensitization in Mice: Importance of Early Voluntary Exercise. Neuroscience 2020; 442:114-123. [PMID: 32652174 DOI: 10.1016/j.neuroscience.2020.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 11/16/2022]
Abstract
The timing of voluntary exercise relative to drug conditioning is important to its "neuroprotective" effects, though it is unclear whether the voluntary exercise needs to occur temporally contiguous with drug conditioning, or occur during an early, developmental period, but non-contiguous with drug conditioning, for its "neuroprotective" effects. To distinguish between these two ideas, the timing of voluntary exercise relative to drug conditioning on the development and extinction of conditioned hyperactivity, and induction of sensitization was manipulated in the present experiment. Specifically, half of the exercise mice were permitted access to home-cage running wheels for 6 continuous weeks (Exercise-Exercise) whereas the other half of the exercise mice were permitted access to home-cage running wheels only for the first 3 weeks and then had the wheels removed (Exercise-Sedentary). Likewise, half of the sedentary mice had no home-cage running wheels for 6 continuous weeks (Sedentary-Sedentary) whereas the other half of the sedentary mice were permitted access to the home-cage running wheels for the last 3 weeks prior to the acquisition phase (Sedentary-Exercise). Mice received vehicle or methamphetamine (Meth; 1.0 mg/kg; acquisition), followed by saline-alone sessions (extinction) and finally challenged with an escalating Meth-regimen (0.25 → 1.0 mg/kg). While all Meth-paired groups, regardless of exercise regimen, showed conditioned hyperactivity, Exercise-Exercise and Exercise-Sedentary mice were less responsive to chronic Meth exposure and showed slower extinction compared to the other Meth-paired groups. These results suggest an early exercise regimen, during a critical developmental window, protects against the stimulant properties of Meth and simultaneously facilitates contextual learning.
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Affiliation(s)
- Anthony S Rauhut
- Psychology Department, Dickinson College, Carlisle, PA 17013, United States; Neuroscience Program, Dickinson College, Carlisle, PA 17013, United States.
| | - Justina A Warnick
- Neuroscience Program, Dickinson College, Carlisle, PA 17013, United States
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Rauhut AS, Warnick JA, Stasior AL. Differential effects of voluntary exercise on development and expression of methamphetamine conditioned hyperactivity and sensitization in mice. Pharmacol Biochem Behav 2020; 193:172934. [PMID: 32333921 DOI: 10.1016/j.pbb.2020.172934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 11/16/2022]
Abstract
The present experiments determined the effects of voluntary home-cage wheel running on the development (Experiments 1 and 2a) and expression (Experiment 2b) of conditioned hyperactivity and long-term sensitization in male, Swiss-Webster mice. Mice experienced 3 weeks of wheel running (exercise) or not (sedentary) either beginning prior to (Experiments 1 and 2a), or immediately following (Experiment 2b), the acquisition phase. During the acquisition phase, mice (n = 12-15/group) received injections (subcutaneous) of either vehicle (saline) or methamphetamine (0.5 or 1.0 mg/kg, Experiment 1; 1.0 mg/kg, Experiments 2a and 2b) immediately prior to 5 locomotor-activity sessions. The extinction phase began 48 hours (h) (Experiment 1) or 3 weeks (Experiments 2a and 2b) after acquisition and all mice received vehicle injections prior to 4 locomotor-activity sessions. Tests of long-term sensitization occurred 72 h after the last extinction session and involved an escalating, methamphetamine-dose regimen (0.25 ➔ 1.0 mg/kg), 1 dose/session for 3 sessions. While pre-acquisition wheel running failed to alter development of conditioned hyperactivity after training with the 0.5 mg/kg methamphetamine dose, it blunted the development of conditioned hyperactivity, and blocked (Experiment 1) or attenuated (Experiment 2a) induction of long-term sensitization after training with the 1.0 mg/kg methamphetamine dose. Furthermore, while post-acquisition wheel running retarded extinction of conditioned hyperactivity, it did not alter expression of conditioned hyperactivity or long-term sensitization (Experiment 2b). Collectively, the results suggest that the impact of voluntary exercise on context-drug associations and long-term sensitization is critically dependent on the timing of exercise relative to drug conditioning.
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Affiliation(s)
- Anthony S Rauhut
- Department of Psychology, Dickinson College, Carlisle, PA, USA; Neuroscience Program, Dickinson College, Carlisle, PA, USA.
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Lespine LF, Tirelli E. No evidence that wheel-running exercise impacts cocaine conditioned place preference in male C57BL/6J mice. Behav Brain Res 2019; 365:110-113. [DOI: 10.1016/j.bbr.2019.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/04/2019] [Accepted: 03/01/2019] [Indexed: 10/27/2022]
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Lespine LF, Plenevaux A, Tirelli E. Wheel-running exercise before and during gestation against acute and sensitized cocaine psychomotor-activation in offspring. Behav Brain Res 2019; 363:53-60. [PMID: 30703395 DOI: 10.1016/j.bbr.2019.01.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 12/15/2022]
Abstract
While animal research has consistently reported preventive effects of exercise against drug abuse vulnerability, little is known about the influence of the developmental stage during which exercise is displayed on addictive drugs responsiveness. This study aimed to determine whether prenatal exercise could attenuate acute cocaine reactivity and psychomotor sensitization in youth offspring. We used a split-plot factorial design where C57BL/6 J females were randomly assigned into sedentary or exercised (wheel-running) conditions before and during gestation, the wheels being removed on gestational day 18. Offspring were weaned, gendered and individually housed on 24-28 days old. At 38-42 days old, they were tested for their acute psychomotor responsiveness to 8 mg/kg cocaine and their initiation of sensitization over 8 additional once-daily administrations, the long-term expression of sensitization occurring 30 days later. Adolescent females born from exercised mothers were much less responsive to the acute psychomotor-stimulating effect of cocaine than those born from sedentary mothers (d = 0.75, p = 0.02), whereas there was no evidence for such a difference in males (d = 0.34, p = 0.17). However, we did not find sizeable attenuating effects of prenatal exercise on the initiation and the long-term expression of the psychomotor-activating effect of cocaine, in either sex (Cohen's ds varying from -0.13 to 0.39). These results suggest that prenatal exercise may induce initial protection against cocaine responsiveness in youth females, a finding that warrants further research.
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Affiliation(s)
- Louis-Ferdinand Lespine
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium.
| | - Alain Plenevaux
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium; Université de Liège, Département de Chimie, Quartier Agora - Allée du 6 Août, 8 (B30), 4000 Liège, Belgium
| | - Ezio Tirelli
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium
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