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Martín-Llorente A, Serrano M, Bonilla-Del Río I, Lekunberri L, Ocerin G, Puente N, Ramos A, Rico-Barrio I, Gerrikagoitia I, Grandes P. Omega-3 Recovers Cannabinoid 1 Receptor Expression in the Adult Mouse Brain after Adolescent Binge Drinking. Int J Mol Sci 2023; 24:17316. [PMID: 38139145 PMCID: PMC10744058 DOI: 10.3390/ijms242417316] [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: 10/31/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Adolescent binge drinking is a social problem with a long-lasting impact on cognitive functions. The cannabinoid type-1 (CB1) receptor of the endocannabinoid system (ECS) is involved in brain synaptic plasticity, cognition and behavior via receptor localization at specific subcellular compartments of the cortical, limbic and motor regions. Alcohol (EtOH) intake affects the ECS, CB1 and their functions. Evidence indicates that binge drinking during adolescence impairs memory via the abrogation of CB1-dependent synaptic plasticity in the hippocampus. However, the impact of EtOH consumption on global CB1 receptor expression in the adult brain is unknown. We studied this using optical density analysis throughout brain regions processed for light microscopy (LM) immunohistotochemistry. CB1 staining decreased significantly in the secondary motor cortex, cerebellum, cingulate cortex, amygdala and nucleus accumbens. Next, as omega-3 (n-3) polyunsaturated fatty acids (PUFAs) rescue synaptic plasticity and improve EtOH-impaired cognition, we investigated whether docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) had any effect on CB1 receptors. N-3 intake during EtOH abstinence restored CB1 immunostaining in the secondary motor cortex, cerebellum and amygdala, and ameliorated receptor density in the cingulate cortex. These results show that n-3 supplementation recovers CB1 receptor expression disrupted by EtOH in distinct brain regions involved in motor functions and cognition.
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Affiliation(s)
- Ane Martín-Llorente
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
| | - Maitane Serrano
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Itziar Bonilla-Del Río
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Leire Lekunberri
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Garazi Ocerin
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Nagore Puente
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Almudena Ramos
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Irantzu Rico-Barrio
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Inmaculada Gerrikagoitia
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Pedro Grandes
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
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Salmani N, Darvishzadeh Mahani F, Parvan M, Nozari M. Effects of Nicotine Administration in an Enriched Environment on the Behavior of Male MK-801-Exposed Rats. ADDICTION & HEALTH 2023; 15:260-265. [PMID: 38322486 PMCID: PMC10843354 DOI: 10.34172/ahj.2023.1433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/26/2023] [Indexed: 02/08/2024]
Abstract
Background Smoking is more common in patients with schizophrenia than in healthy populations. Some controversial hypotheses connect the disease with the high prevalence of smoking. Moreover, environmental factors affect the severity of the positive and negative symptoms of schizophrenia. The current study aimed to assess the effect of enriched environment (EE) and nicotine on the MK-801 animal model of schizophrenia. Methods Male Wistar rat pups randomly received saline or MK-801 (dose:1 mg/kg) for five days from the sixth postnatal day (P) until the tenth. The pups were placed in EE or standard cages (SCs) after weaning (P21). Morris water maze (MWM) was used to assess spatial learning and memory. The rats received 0.6 mg/kg nicotine twice for three days at the end of the second month and were examined in an open-field box and three-chamber social interaction test. Findings MK-801 rats' behaviors were the same as those of the saline rats when they were exposed to nicotine. No positive effects of EE were observed when the animals were exposed to nicotine. Conclusion The results suggested that nicotine decreased schizophrenia-like symptoms and covered the positive effects of EE.
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Affiliation(s)
- Neda Salmani
- Department of Psychology, Zarand Branch, Islamic Azad University, Kerman, Iran
| | - Fatemeh Darvishzadeh Mahani
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahdieh Parvan
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoumeh Nozari
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Serrano M, Rico-Barrio I, Grandes P. The effect of omega-3 fatty acids on alcohol-induced damage. Front Nutr 2023; 10:1068343. [PMID: 37090780 PMCID: PMC10113533 DOI: 10.3389/fnut.2023.1068343] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 03/21/2023] [Indexed: 04/08/2023] Open
Abstract
Alcohol is the most widely consumed psychoactive substance in the world that has a severe impact on many organs and bodily systems, particularly the liver and nervous system. Alcohol use during pregnancy roots long-lasting changes in the newborns and during adolescence has long-term detrimental effects especially on the brain. The brain contains docosahexaenoic acid (DHA), a major omega-3 (n-3) fatty acid (FA) that makes up cell membranes and influences membrane-associated protein function, cell signaling, gene expression and lipid production. N-3 is beneficial in several brain conditions like neurodegenerative diseases, ameliorating cognitive impairment, oxidative stress, neuronal death and inflammation. Because alcohol decreases the levels of n-3, it is timely to know whether n-3 supplementation positively modifies alcohol-induced injuries. The aim of this review is to summarize the state-of-the-art of the n-3 effects on certain conditions caused by alcohol intake, focusing primarily on brain damage and alcoholic liver disease.
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Affiliation(s)
- Maitane Serrano
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, Leioa, Spain
| | - Irantzu Rico-Barrio
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, Leioa, Spain
| | - Pedro Grandes
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, Leioa, Spain
- *Correspondence: Pedro Grandes,
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Towner TT, Applegate DT, Varlinskaya EI, Werner DF. Impact of Adolescent Intermittent Ethanol Exposure on Social Investigation, Social Preference, and Neuronal Activation in cFos-LacZ Male and Female Rats. Front Pharmacol 2022; 13:841657. [PMID: 35401161 PMCID: PMC8984146 DOI: 10.3389/fphar.2022.841657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/28/2022] [Indexed: 12/03/2022] Open
Abstract
Adolescence is a sensitive developmental period during which alcohol use is often initiated and consumed in high quantities, often at binge or even high-intensity drinking levels. Our lab has repeatedly found that adolescent intermittent ethanol (AIE) exposure in rats results in long-lasting social impairments, specifically in males, however our knowledge of the neuronal underpinnings to this sex-specific effect of AIE is limited. The present study was designed to test whether social anxiety-like alterations in AIE-exposed males would be accompanied by alterations of neuronal activation across brain regions associated with social behavior, with AIE females demonstrating no social impairments and alterations in neuronal activation. Adolescent male and female cFos-LacZ transgenic rats on a Sprague-Dawley background were exposed to ethanol (4 g/kg, 25% v/v) or water via intragastric gavage every other day during postnatal days (P) 25–45 for a total of 11 exposures (n = 13 per group). Social behavior of adult rats was assessed on P70 using a modified social interaction test, and neuronal activation in brain regions implicated in social responding was assessed via β-galactosidase (β-gal) expression. We found that AIE exposure in males resulted in a significantly lower social preference coefficient relative to water-exposed controls, with no effect evident in females. Exposure-specific relationships between social behavior and neuronal activation were identified, with AIE eliminating correlations found in water controls related to social interaction, and eliciting negative correlations mainly in limbic regions in a sex-specific manner. AIE exposure in the absence of social testing was also found to differentially affect neural activity in the orbitofrontal cortex and central amygdala in males and females. These data suggest that AIE produces sex-specific social impairments that are potentially driven by differential neuronal activation states in regions important for social behavior, including the medial prefrontal and orbitofrontal cortices, nucleus accumbens, lateral septum, and central amygdala. Future studies should be focused on identification of specific neuronal phenotypes activated by interaction with a social partner in AIE-exposed subjects and their control counterparts.
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Charlton AJ, Perry CJ. The Effect of Chronic Alcohol on Cognitive Decline: Do Variations in Methodology Impact Study Outcome? An Overview of Research From the Past 5 Years. Front Neurosci 2022; 16:836827. [PMID: 35360176 PMCID: PMC8960615 DOI: 10.3389/fnins.2022.836827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/27/2022] [Indexed: 11/24/2022] Open
Abstract
Excessive alcohol use is often associated with accelerated cognitive decline, and extensive research using animal models of human alcohol consumption has been conducted into potential mechanisms for this relationship. Within this literature there is considerable variability in the types of models used. For example, alcohol administration style (voluntary/forced), length and schedule of exposure and abstinence period are often substantially different between studies. In this review, we evaluate recent research into alcohol-induced cognitive decline according to methodology of alcohol access, as well as cognitive behavioral task employed. Our aim was to query whether the nature and severity of deficits observed may be impacted by the schedule and type of alcohol administration. We furthermore examined whether there is any apparent relationship between the amount of alcohol consumed and the severity of the deficit, as well as the potential impact of abstinence length, and other factors such as age of administration, and sex of subject. Over the past five years, researchers have overwhelmingly used non-voluntary methods of intake, however deficits are still found where intake is voluntary. Magnitude of intake and type of task seem most closely related to the likelihood of producing a deficit, however even this did not follow a consistent pattern. We highlight the importance of using systematic and clear reporting styles to facilitate consistency across the literature in this regard. We hope that this analysis will provide important insights into how experimental protocols might influence findings, and how different patterns of consumption are more or less likely to produce an addiction-vulnerable cognitive phenotype in animal models.
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Affiliation(s)
- Annai J. Charlton
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Florey Department of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Christina J. Perry
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- School of Psychological Sciences, Centre for Emotional Health, Macquarie University, North Ryde, NSW, Australia
- *Correspondence: Christina J. Perry,
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Jiang S, Wang YQ, Tang Y, Lu X, Guo D. Environmental Enrichment Protects Against Sepsis-Associated Encephalopathy-Induced Learning and Memory Deficits by Enhancing the Synthesis and Release of Vasopressin in the Supraoptic Nucleus. J Inflamm Res 2022; 15:363-379. [PMID: 35079222 PMCID: PMC8776728 DOI: 10.2147/jir.s345108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/07/2022] [Indexed: 12/28/2022] Open
Abstract
Background As a severe complication of sepsis, sepsis-associated encephalopathy (SAE) usually manifests as impaired learning and memory ability in survivors. Previous studies have reported that environmental enrichment (EE) can increase the learning and memory ability in different brain injury models. However, there has been no research on the possible positive effect of EE on SAE. Aim The present study aimed to test the effect of EE on SAE-induced impairment of learning and memory and its related mechanisms. Methods A Morris water maze test (MWM) was used to evaluate the learning and memory ability of SAE rats that received EE housing or not. The expression of vasopressin (VP) was assessed using immunofluorescence microscopy and enzyme-linked immunosorbent assays (ELISAs). The synthesis of VP in the supraoptic nucleus (SON) was determined using quantitative real-time reverse transcription-PCR analysis. Moreover, inflammatory markers and brain-derived neurotrophic factor (BDNF) were detected using ELISA. Results The results showed that SAE induced a decreased learning and memory ability, while EE reversed this impairment. EE also enhanced the synthesis and secretion of VP in the SON. Blocking the action of VP in the hippocampus interrupted the EE-induced amelioration of learning and memory impairment. Moreover, EE induced changes to the levels of BDNF and cytokines in the hippocampus and these effects were mediated by VP binding to the VP receptor 1a. Conclusion Our findings demonstrated that the enhanced synthesis and secretion of VP in the SON are a key determinant responsible for EE-induced alleviation of learning and memory deficits caused by SAE.
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Affiliation(s)
- Shan Jiang
- Department of Rehabilitation Medicine, the China-Japan Friendship Hospital, Beijing, 100029, People’s Republic of China
- Correspondence: Shan Jiang, Department of Rehabilitation Medicine, the China-Japan Friendship Hospital, No. 2 Ying Hua Yuan East Street, Beijing, 100029, People’s Republic of China, Tel +86 10 84205288, Fax +86 10 64217749, Email
| | - Yong-Qiang Wang
- Department of Ophthalmology, the Sunshine Union Hospital, Weifang, Shandong, 261071, People’s Republic of China
| | - Yifei Tang
- Department of Rehabilitation Medicine, the China-Japan Friendship Hospital, Beijing, 100029, People’s Republic of China
| | - Xi Lu
- Department of Rehabilitation Medicine, the China-Japan Friendship Hospital, Beijing, 100029, People’s Republic of China
| | - Dan Guo
- Department of Rehabilitation Medicine, the China-Japan Friendship Hospital, Beijing, 100029, People’s Republic of China
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Rico-Barrio I, Peñasco S, Lekunberri L, Serrano M, Egaña-Huguet J, Mimenza A, Soria-Gomez E, Ramos A, Buceta I, Gerrikagoitia I, Mendizabal-Zubiaga J, Elezgarai I, Puente N, Grandes P. Environmental Enrichment Rescues Endocannabinoid-Dependent Synaptic Plasticity Lost in Young Adult Male Mice after Ethanol Exposure during Adolescence. Biomedicines 2021; 9:biomedicines9070825. [PMID: 34356889 PMCID: PMC8301393 DOI: 10.3390/biomedicines9070825] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/03/2021] [Accepted: 07/12/2021] [Indexed: 11/16/2022] Open
Abstract
Binge drinking (BD) is a serious health concern in adolescents as high ethanol (EtOH) consumption can have cognitive sequelae later in life. Remarkably, an enriched environment (EE) in adulthood significantly recovers memory in mice after adolescent BD, and the endocannabinoid, 2-arachydonoyl-glycerol (2-AG), rescues synaptic plasticity and memory impaired in adult rodents upon adolescent EtOH intake. However, the mechanisms by which EE improves memory are unknown. We investigated this in adolescent male C57BL/6J mice exposed to a drinking in the dark (DID) procedure four days per week for a duration of 4 weeks. After DID, the mice were nurtured under an EE for 2 weeks and were subjected to the Barnes Maze Test performed the last 5 days of withdrawal. The EE rescued memory and restored the EtOH-disrupted endocannabinoid (eCB)-dependent excitatory long-term depression at the dentate medial perforant path synapses (MPP-LTD). This recovery was dependent on both the cannabinoid CB1 receptor and group I metabotropic glutamate receptors (mGluRs) and required 2-AG. Also, the EE had a positive effect on mice exposed to water through the transient receptor potential vanilloid 1 (TRPV1) and anandamide (AEA)-dependent MPP long-term potentiation (MPP-LTP). Taken together, EE positively impacts different forms of excitatory synaptic plasticity in water- and EtOH-exposed brains.
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Affiliation(s)
- Irantzu Rico-Barrio
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Sara Peñasco
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, 29010 Málaga, Spain;
| | - Leire Lekunberri
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Maitane Serrano
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Jon Egaña-Huguet
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Amaia Mimenza
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Edgar Soria-Gomez
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Almudena Ramos
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Ianire Buceta
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Inmaculada Gerrikagoitia
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Juan Mendizabal-Zubiaga
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Izaskun Elezgarai
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Nagore Puente
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Pedro Grandes
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.R.-B.); (L.L.); (M.S.); (J.E.-H.); (A.M.); (E.S.-G.); (A.R.); (I.B.); (I.G.); (J.M.-Z.); (I.E.); (N.P.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
- Division of Medical Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada
- Correspondence: ; Tel.: +34-946012875
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Robledo-Menendez A, Vella M, Grandes P, Soria-Gomez E. Cannabinoid control of hippocampal functions: the where matters. FEBS J 2021; 289:2162-2175. [PMID: 33977665 DOI: 10.1111/febs.15907] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/23/2021] [Accepted: 04/30/2021] [Indexed: 12/15/2022]
Abstract
In the brain, hippocampal circuits are crucial for cognitive performance (e.g., memory) and deeply affected in pathological conditions (e.g., epilepsy, Alzheimer). Specialized molecular mechanisms regulate different cell types underlying hippocampal circuitries functions. Among them, cannabinoid receptors exhibit various roles depending on the cell type (e.g., neuron, glial cell) or subcellular organelle (e.g., mitochondria). Determining the site of action and precise mechanisms triggered by cannabinoid receptor activation at a local cellular and subcellular level helps us understand hippocampal pathophysiological states. In doing so, past and current research have advanced our knowledge of cannabinoid functions and proposed novel routes for potential therapeutics. By outlining these data in this work, we aim to showcase current findings and highlight the pathophysiological impact of the cannabinoid receptor type 1 (CB1) localization/activation in hippocampal circuits.
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Affiliation(s)
- Almudena Robledo-Menendez
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Maria Vella
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Pedro Grandes
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Edgar Soria-Gomez
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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9
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Kasten CR, Holmgren EB, Lerner MR, Wills TA. BNST specific mGlu5 receptor knockdown regulates sex-dependent expression of negative affect produced by adolescent ethanol exposure and adult stress. Transl Psychiatry 2021; 11:178. [PMID: 33731684 PMCID: PMC7969933 DOI: 10.1038/s41398-021-01285-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 01/21/2021] [Accepted: 02/18/2021] [Indexed: 12/11/2022] Open
Abstract
Adolescent alcohol use is one of the strongest predictors for the development of an alcohol use disorder (AUD). Notably, this period of risk coincides with the development of affective disorders, which disproportionately impact and drive problematic drinking behavior in women. Stress is a particularly salient factor that drives relapse during periods of abstinence. Previous work in our lab has shown that adolescent intermittent ethanol vapor (AIE) produces sex-dependent changes in glutamatergic activity in the bed nucleus of the stria terminalis (BNST) and behavioral outcomes following acute restraint stress in adulthood. In females, AIE disrupts group 1 metabotropic glutamate (mGlu1/5) receptor activity and enhances anhedonia-like behavior. The current study site-specifically knocked down mGlu5 receptors in the BNST of male and female Grm5loxp mice, exposed them to AIE, and observed the interaction of AIE and stress on negative affect-like behaviors in adulthood. These negative affect-like behaviors included the novelty-induced hypophagia task following acute restraint stress, open field activity, and contextual fear conditioning. Overall, we replicated our previous findings that AIE enhanced anhedonia-like activity in the novelty-induced hypophagia task in females and fear acquisition in males. The primary effect of BNST-mGlu5 receptor knockdown was that it independently enhanced anhedonia-like activity in females. Correlation analyses revealed that behavior in these paradigms showed poor interdependence. These results indicate that preclinical models of negative affective-like states encompass distinct features that may have independent, clinically relevant mechanisms. Further, modulating mGlu5 receptors is a prospective treatment target for females experiencing anhedonic-like states that make them susceptible to alcohol relapse.
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Affiliation(s)
- Chelsea R Kasten
- Department of Cell Biology and Anatomy, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Eleanor B Holmgren
- Department of Cell Biology and Anatomy, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Mollie R Lerner
- Department of Cell Biology and Anatomy, LSU Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Tiffany A Wills
- Department of Cell Biology and Anatomy, LSU Health Sciences Center New Orleans, New Orleans, LA, USA.
- Neuroscience Center of Excellence, LSU Health Sciences Center New Orleans, New Orleans, LA, USA.
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10
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Ledesma JC, Rodríguez‐Arias M, Gavito AL, Sánchez‐Pérez AM, Viña J, Medina Vera D, Rodríguez de Fonseca F, Miñarro J. Adolescent binge-ethanol accelerates cognitive impairment and β-amyloid production and dysregulates endocannabinoid signaling in the hippocampus of APP/PSE mice. Addict Biol 2021; 26:e12883. [PMID: 32043730 DOI: 10.1111/adb.12883] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/11/2020] [Accepted: 01/23/2020] [Indexed: 11/29/2022]
Abstract
Previous research in rodents suggests that the long-term neurobehavioral disturbances induced by chronic ethanol (EtOH) exposure could be due to endocannabinoid system (ECS) alterations. Moreover, ECS failure has been proposed to mediate the cognitive impairment and β-amyloid production in Alzheimer disease (AD). Thus, in the present study, we evaluated the effects of adolescent EtOH binge drinking on the cognitive disturbances, hippocampal β-amyloid levels, and in the ECS expression on a transgenic mouse model (APP/PSEN, AZ) of AD. We exposed AZ and wild-type mice to a binge-drinking treatment during adolescence. At 6 and 12 months of age, we evaluated hippocampal-dependent learning and memory: β-amyloid concentrations and RNA and protein levels of cannabinoid type-2 receptors (CB2), diacylglycerol lipase-α (DAGLα), and monoacylglycerol lipase (MAGL) in the hippocampus. The results showed that binge-EtOH treatment worsens cognitive function and increases β-amyloid levels in AZ. At 6 months, EtOH heightens CB2 (RNA and protein) and DAGLα (RNA) expression in wild type but not in AZ. On the contrary, EtOH enhances MAGL RNA expression only in AZ. At 12 months, AZ displays increased levels of CB2 (RNA and protein) and DAGLα (protein) compared with control. Similar to what happens at 6 months, EtOH induces an increase in CB2 gene expression in wild type but not in AZ; however, it augments CB2 and DAGLα protein levels in both genotypes. Therefore, we propose that adolescent binge drinking accelerates cognitive deficits associated with aging and AD. It also accelerates hippocampal β-amyloid accumulation in AZ and affects differently the ECS response in wild type and AZ.
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Affiliation(s)
| | - Marta Rodríguez‐Arias
- Departament de Psicobiologia Universitat de València Valencia Spain
- Red Temática de Investigación Cooperativa en Salud (RETICS‐Trastornos Adictivos), Instituto de Salud Carlos III, MICINN and FEDER Madrid Spain
| | - Ana L. Gavito
- Instituto IBIMA, Hospital Regional Universitario de Málaga Unidad de Gestión de Salud Mental Málaga Spain
| | | | - José Viña
- Freshage Research Group, Department of Physiology, Faculty of Medicine University of Valencia, CIBERFES Valencia Spain
| | - Dina Medina Vera
- Instituto IBIMA, Hospital Regional Universitario de Málaga Unidad de Gestión de Salud Mental Málaga Spain
| | - Fernando Rodríguez de Fonseca
- Red Temática de Investigación Cooperativa en Salud (RETICS‐Trastornos Adictivos), Instituto de Salud Carlos III, MICINN and FEDER Madrid Spain
- Instituto IBIMA, Hospital Regional Universitario de Málaga Unidad de Gestión de Salud Mental Málaga Spain
| | - José Miñarro
- Departament de Psicobiologia Universitat de València Valencia Spain
- Red Temática de Investigación Cooperativa en Salud (RETICS‐Trastornos Adictivos), Instituto de Salud Carlos III, MICINN and FEDER Madrid Spain
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11
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Brancato A, Castelli V, Lavanco G, Cannizzaro C. Environmental Enrichment During Adolescence Mitigates Cognitive Deficits and Alcohol Vulnerability due to Continuous and Intermittent Perinatal Alcohol Exposure in Adult Rats. Front Behav Neurosci 2020; 14:583122. [PMID: 33100982 PMCID: PMC7546794 DOI: 10.3389/fnbeh.2020.583122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/25/2020] [Indexed: 12/27/2022] Open
Abstract
Perinatal alcohol exposure affects ontogenic neurodevelopment, causing physical and functional long-term abnormalities with limited treatment options. This study investigated long-term consequences of continuous and intermittent maternal alcohol drinking on behavioral readouts of cognitive function and alcohol vulnerability in the offspring. The effects of environmental enrichment (EE) during adolescence were also evaluated. Female rats underwent continuous alcohol drinking (CAD)—or intermittent alcohol drinking paradigm (IAD), along pregestation, gestation, and lactation periods—equivalent to the whole gestational period in humans. Male offspring were reared in standard conditions or EE until adulthood and were then assessed for declarative memory in the novel object recognition test; spatial learning, cognitive flexibility, and reference memory in the Morris water maze (MWM); alcohol consumption and relapse by a two-bottle choice paradigm. Our data show that perinatal CAD decreased locomotor activity, exploratory behavior, and declarative memory with respect to controls, whereas perinatal IAD displayed impaired declarative memory and spatial learning and memory. Moreover, both perinatal alcohol-exposed offspring showed higher vulnerability to alcohol consummatory behavior than controls, albeit perinatal IAD rats showed a greater alcohol consumption and relapse behavior with respect to perinatal-CAD progeny. EE ameliorated declarative memory in perinatal CAD, while it mitigated spatial learning and reference memory impairment in perinatal-IAD progeny. In addition, EE decreased vulnerability to alcohol in both control and perinatal alcohol-exposed rats. Maternal alcohol consumption produces drinking pattern-related long-term consequences on cognition and vulnerability to alcohol in the offspring. However, increased positive environmental stimuli during adolescence may curtail the detrimental effects of developmental alcohol exposure.
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Affiliation(s)
- Anna Brancato
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties of Excellence "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Valentina Castelli
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Gianluca Lavanco
- INSERM U1215, NeuroCentre Magendie, Bordeaux, France.,University of Bordeaux, Bordeaux, France.,Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania, Italy
| | - Carla Cannizzaro
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties of Excellence "G. D'Alessandro", University of Palermo, Palermo, Italy
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12
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Treadmill Exercise Buffers Behavioral Alterations Related to Ethanol Binge-Drinking in Adolescent Mice. Brain Sci 2020; 10:brainsci10090576. [PMID: 32825478 PMCID: PMC7563508 DOI: 10.3390/brainsci10090576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/11/2020] [Accepted: 08/19/2020] [Indexed: 01/07/2023] Open
Abstract
The binge-drinking pattern of EtOH consumption, which is frequently observed in adolescents, is known to induce several neurobehavioral alterations, but protection strategies against these impairments remain scarcely explored. We aimed to study the protective role of treadmill physical exercise on the deficits caused after repeated cycles of binge-like EtOH exposure in the cognition, motivation, exploration, and emotion of C57BL/6J mice from adolescence to adulthood. Animals were divided into four groups: control group, exercised group, EtOH group, and exercised + EtOH group (20% in tap water). The exercise was performed for 20 min, 5 days/week at 20 cm/s. Then, animals were submitted to several behavioral tasks. Compared to binge-drinking mice, the exercised + EtOH group exhibited diminished anxiolytic-related behaviors in the elevated plus-maze, enhanced exploratory activity in the open field, reduced preference for alcohol odor when another rewarding stimulus was present (social stimulus) and lower latency to start self-cleaning behaviors in the sucrose splash test. In contrast, other measurements such as habituation learning and working memory were not improved by exercise. Besides, exercise was not able to reduce alcohol consumption across the weeks. In conclusion, physical activity during adolescence and early adulthood could buffer certain neurobehavioral alterations associated with binge-drinking, despite not reducing the quantity of consumed alcohol.
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13
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Giménez-Gómez P, Pérez-Hernández M, O'Shea E, Caso JR, Martín-Hernandez D, Cervera LA, Centelles MLGL, Gutiérrez-Lopez MD, Colado MI. Changes in brain kynurenine levels via gut microbiota and gut-barrier disruption induced by chronic ethanol exposure in mice. FASEB J 2019; 33:12900-12914. [PMID: 31509716 DOI: 10.1096/fj.201900491rr] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammatory processes have been shown to modify tryptophan (Trp) metabolism. Gut microbiota appears to play a significant role in the induction of peripheral and central inflammation. Ethanol (EtOH) exposure alters gut permeability, but its effects on Trp metabolism and the involvement of gut microbiota have not been studied. We analyzed several parameters of gut-barrier and of peripheral and central Trp metabolism following 2 different EtOH consumption patterns in mice, the binge model, drinking in the dark (DID), and the chronic intermittent (CI) consumption paradigm. Antibiotic treatment was used to evaluate gut microbiota involvement in the CI model. Mice exposed to CI EtOH intake, but not DID, show bacterial translocation and increased plasma LPS immediately after EtOH removal. Gut-barrier permeability to FITC-dextran is increased by CI, and, furthermore, intestinal epithelial tight-junction (TJ) disruption is observed (decreased expression of zonula occludens 1 and occludin) associated with increased matrix metalloproteinase (MMP)-9 activity and iNOS expression. CI EtOH, but not DID, increases kynurenine (Kyn) levels in plasma and limbic forebrain. Intestinal bacterial decontamination prevents the LPS increase but not the permeability to FITC-dextran, TJ disruption, or the increase in MMP-9 activity and iNOS expression. Although plasma Kyn levels are not affected by antibiotic treatment, the elevation of Kyn in brain is prevented, pointing to an involvement of microbiota in CI EtOH-induced changes in brain Trp metabolism. Additionally, CI EtOH produces depressive-like symptoms of anhedonia, which are prevented by the antibiotic treatment thus pointing to an association between anhedonia and the increase in brain Kyn and to the involvement of gut microbiota.-Giménez-Gómez, P., Pérez-Hernández, M., O'Shea, E., Caso, J. R., Martín-Hernández, D., Cervera, L. A., Centelles. M. L. G.-L., Gutiérrez-Lopez, M. D., Colado, M. I. Changes in brain kynurenine levels via gut microbiota and gut-barrier disruption induced by chronic ethanol exposure in mice.
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Affiliation(s)
- Pablo Giménez-Gómez
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Red de Trastornos Adictivos del Instituto de Salud Carlos III, Madrid, Spain.,Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Mercedes Pérez-Hernández
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Red de Trastornos Adictivos del Instituto de Salud Carlos III, Madrid, Spain.,Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Esther O'Shea
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Red de Trastornos Adictivos del Instituto de Salud Carlos III, Madrid, Spain.,Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Javier R Caso
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Salud Mental (CIBERSAM), Madrid, Spain
| | - David Martín-Hernandez
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Centro de Investigación Biomédica en Salud Mental (CIBERSAM), Madrid, Spain
| | - Luis Alou Cervera
- Área de Microbiología, Departamento de Medicina, Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | | | - María Dolores Gutiérrez-Lopez
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Red de Trastornos Adictivos del Instituto de Salud Carlos III, Madrid, Spain.,Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Maria Isabel Colado
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre, Madrid, Spain.,Red de Trastornos Adictivos del Instituto de Salud Carlos III, Madrid, Spain.,Instituto Universitario de Investigación Neuroquímica (IUIN), Facultad de Medicina, Universidad Complutense, Madrid, Spain
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14
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Kasten CR, Holmgren EB, Wills TA. Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect. Brain Sci 2019; 9:E183. [PMID: 31366097 PMCID: PMC6721373 DOI: 10.3390/brainsci9080183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/26/2019] [Accepted: 07/28/2019] [Indexed: 02/07/2023] Open
Abstract
Allosteric modulators of metabotropic glutamate 5 receptors (mGlu5 receptors) have been identified as a promising treatment to independently alleviate both negative affective states and ethanol-seeking and intake. However, these conditions are often comorbid and might precipitate one another. Acute and protracted ethanol withdrawal can lead to negative affective states. In turn, these states are primary drivers of alcohol relapse, particularly among women. The current review synthesizes preclinical studies that have observed the role of mGlu5 receptor modulation in negative affective states following ethanol exposure. The primary behavioral assays discussed are ethanol-seeking and intake, development and extinction of ethanol-associated cues and contexts, behavioral despair, and anxiety-like activity. The work done to-date supports mGlu5 receptor modulation as a promising target for mediating negative affective states to reduce ethanol intake or prevent relapse. Limitations in interpreting these data include the lack of models that use alcohol-dependent animals, limited use of adolescent and female subjects, and a lack of comprehensive evaluations of negative affective-like behavior.
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Affiliation(s)
- Chelsea R Kasten
- LSU Health Sciences Center-New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USA
| | - Eleanor B Holmgren
- LSU Health Sciences Center-New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USA
| | - Tiffany A Wills
- LSU Health Sciences Center-New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USA.
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15
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Peñasco S, Rico-Barrio I, Puente N, Gómez-Urquijo SM, Fontaine CJ, Egaña-Huguet J, Achicallende S, Ramos A, Reguero L, Elezgarai I, Nahirney PC, Christie BR, Grandes P. Endocannabinoid long-term depression revealed at medial perforant path excitatory synapses in the dentate gyrus. Neuropharmacology 2019; 153:32-40. [PMID: 31022405 DOI: 10.1016/j.neuropharm.2019.04.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/28/2019] [Accepted: 04/18/2019] [Indexed: 12/22/2022]
Abstract
The endocannabinoid system modulates synaptic plasticity in the hippocampus, but a link between long-term synaptic plasticity and the type 1 cannabinoid (CB1) receptor at medial perforant path (MPP) synapses remains elusive. Here, immuno-electron microscopy in adult mice showed that ∼26% of the excitatory synaptic terminals in the middle 1/3 of the dentate molecular layer (DML) contained CB1 receptors, and field excitatory postsynaptic potentials evoked by MPP stimulation were inhibited by CB1 receptor activation. In addition, MPP stimulation at 10 Hz for 10 min triggered CB1 receptor-dependent excitatory long-term depression (eCB-eLTD) at MPP synapses of wild-type mice but not on CB1-knockout mice. This eCB-eLTD was group I mGluR-dependent, required intracellular calcium influx and 2-arachydonoyl-glycerol (2-AG) synthesis but did not depend on N-methyl-d-aspartate (NMDA) receptors. Overall, these results point to a functional role for CB1 receptors with eCB-eLTD at DML MPP synapses and further involve these receptors in memory processing within the adult brain.
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Affiliation(s)
- Sara Peñasco
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Irantzu Rico-Barrio
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Nagore Puente
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Sonia María Gómez-Urquijo
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Christine J Fontaine
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada
| | - Jon Egaña-Huguet
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Svein Achicallende
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Almudena Ramos
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Leire Reguero
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Izaskun Elezgarai
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain
| | - Patrick C Nahirney
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada
| | - Brian R Christie
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada
| | - Pedro Grandes
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Achucarro Basque Center for Neuroscience, Science Park of the University of the Basque Country UPV/EHU, E-48940, Leioa, Spain; Division of Medical Sciences, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada.
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