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Doyle MA, Salimando GJ, Altemus ME, Badt JK, Bedenbaugh MN, Vardy AS, Adank DN, Park AS, Winder DG. BNST GluN2D-containing NMDARs contribute to ethanol intake but not negative affective behaviors in female mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.19.590258. [PMID: 38659775 PMCID: PMC11042366 DOI: 10.1101/2024.04.19.590258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Alcohol use disorder (AUD) is a chronic, relapsing disease, highly comorbid with anxiety and depression. The bed nucleus of the stria terminalis (BNST), and Crh + neurons in this region are thought to play a key role in chronic ethanol-induced increases in volitional ethanol intake. This role has been hypothesized to be driven by emergent BNST-dependent negative affective behaviors. Indeed, we report here that in female mice undergoing a home cage chronic drinking forced abstinence model (CDFA), excitatory transmission undergoes time-dependent upregulation in BNST Crh + cells. Excitatory NMDA receptors (NMDARs) are a major target of ethanol, and chronic ethanol exposure has been shown to regulate NMDAR function and expression. GluN2D subunit-containing NMDARs have emerged as a target of interest due to their limited distribution and potential roles in affective behavior. We find that knockdown of dorsal BNST (dBNST) GluN2D expression significantly decreases ethanol intake in female, but not male, mice. While BNST Grin2b expression was significantly increased in protracted abstinence following CDFA, no differences in Grin2d expression were observed in dBNST or specifically in dBNST Crh + neurons. Finally, to determine the impact of GluN2D expression on negative affective behaviors, open field, elevated zero maze, and forced swim tasks were used to measure anxiety- and depressive-like behaviors in constitutive and conditional BNST GluN2D knockout mice. Surprisingly, we find that deletion of GluN2D fails to alter negative affect in ethanol-naïve female mice. Together, these data suggest a role for BNST GluN2D-containing NMDARs in ethanol drinking behaviors but not abstinence from ethanol, highlighting potential sex differences and behavioral specificity in the context of AUD behaviors. Overall, these data further suggest roles for BNST synaptic signaling in volitional ethanol intake that are partially independent of actions on affective behavior.
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Doyle MA, Brown JA, Winder DG. GluN2D expression is regulated by restraint stress and supports active stress coping bouts. Neuropharmacology 2023; 225:109377. [PMID: 36528117 PMCID: PMC9839594 DOI: 10.1016/j.neuropharm.2022.109377] [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: 09/27/2022] [Revised: 11/22/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022]
Abstract
Stress coping strategies represent critical responses to environmental challenges, and active coping has been linked to stress resilience in humans. Understanding the neuroadaptations that support these strategies may provide insights into adaptive and maladaptive stress responses. NMDA receptors (NMDARs) play key roles in neuroadaptation, and NMDARs have been specifically implicated in stress responsiveness. Constitutive knockout mice have been used to implicate the GluN2D NMDAR subunit in regulation of stress-sensitive and affective behavior, but the brain regions in which GluN2D expression changes drive these effects remain unknown. Here we report that following an acute restraint stressor, GluN2D subunit expression is specifically decreased in the bed nucleus of the stria terminalis (BNST), a key region involved in stress processing, in male but not female mice, with no differences found in the thalamus or ventral hippocampus in either sex. Rodents engage in active struggling events during restraint stress that may represent active coping strategies to stress. Thus, we assessed active coping bouts during acute and chronic restraint stress sessions in GluN2D knockout mice. During the first restraint session, GluN2D knockout mice exhibited a pronounced decrease in struggling bouts during restraint stress relative to wild-type littermates, consistent with a role of GluN2D in active coping responses to stress. Repeated, daily restraint sessions revealed a sex-specific role of GluN2D expression on certain aspects of active coping behaviors, with male GluN2D KO mice exhibiting a decrease in total coping bouts measured across five sessions. However, BNST-specific knockdown of GluN2D in male mice did not alter active coping bouts, suggesting either a multi-synaptic role of GluN2D and/or a developmental role of GluN2D in this behavior. Altogether, these data are consistent with a growing literature suggesting that exploration of GluN2D control of stress circuit actions may lead to a novel therapeutic target to consider for stress-related mood disorders.
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Affiliation(s)
- Marie A Doyle
- Department of Molecular Physiology and Biophysics, Vanderbilt University, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, USA
| | - Jordan A Brown
- Vanderbilt Center for Addiction Research, Vanderbilt University, USA; Department of Pharmacology, Vanderbilt University, USA
| | - Danny G Winder
- Department of Molecular Physiology and Biophysics, Vanderbilt University, USA; Vanderbilt Center for Addiction Research, Vanderbilt University, USA; Department of Pharmacology, Vanderbilt University, USA; Department of Psychiatry, Vanderbilt University Medical Center, USA.
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Bonifacino T, Mingardi J, Facchinetti R, Sala N, Frumento G, Ndoj E, Valenza M, Paoli C, Ieraci A, Torazza C, Balbi M, Guerinoni M, Muhammad N, Russo I, Milanese M, Scuderi C, Barbon A, Steardo L, Bonanno G, Popoli M, Musazzi L. Changes at glutamate tripartite synapses in the prefrontal cortex of a new animal model of resilience/vulnerability to acute stress. Transl Psychiatry 2023; 13:62. [PMID: 36806044 PMCID: PMC9938874 DOI: 10.1038/s41398-023-02366-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/20/2023] Open
Abstract
Stress represents a main risk factor for psychiatric disorders. Whereas it is known that even a single trauma may induce psychiatric disorders in humans, the mechanisms of vulnerability to acute stressors have been little investigated. In this study, we generated a new animal model of resilience/vulnerability to acute footshock (FS) stress in rats and analyzed early functional, molecular, and morphological determinants of stress vulnerability at tripartite glutamate synapses in the prefrontal cortex (PFC). We found that adult male rats subjected to FS can be deemed resilient (FS-R) or vulnerable (FS-V), based on their anhedonic phenotype 24 h after stress exposure, and that these two populations are phenotypically distinguishable up to two weeks afterwards. Basal presynaptic glutamate release was increased in the PFC of FS-V rats, while depolarization-evoked glutamate release and synapsin I phosphorylation at Ser9 were increased in both FS-R and FS-V. In FS-R and FS-V rats the synaptic expression of GluN2A and apical dendritic length of prelimbic PFC layers II-III pyramidal neurons were decreased, while BDNF expression was selectively reduced in FS-V. Depolarization-evoked (carrier-mediated) glutamate release from astroglia perisynaptic processes (gliosomes) was selectively increased in the PFC of FS-V rats, while GLT1 and xCt levels were higher and GS expression reduced in purified PFC gliosomes from FS-R. Overall, we show for the first time that the application of the sucrose intake test to rats exposed to acute FS led to the generation of a novel animal model of resilience/vulnerability to acute stress, which we used to identify early determinants of maladaptive response related to behavioral vulnerability to stress.
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Affiliation(s)
- Tiziana Bonifacino
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy
| | - Jessica Mingardi
- grid.7563.70000 0001 2174 1754School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy ,grid.7637.50000000417571846Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Roberta Facchinetti
- grid.7841.aDepartment of Physiology and Pharmacology “Vittorio Erspamer”, SAPIENZA University of Rome, Rome, Italy
| | - Nathalie Sala
- grid.4708.b0000 0004 1757 2822Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy
| | - Giulia Frumento
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy
| | - Elona Ndoj
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Marta Valenza
- grid.7841.aDepartment of Physiology and Pharmacology “Vittorio Erspamer”, SAPIENZA University of Rome, Rome, Italy
| | - Caterina Paoli
- grid.7563.70000 0001 2174 1754School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy ,grid.5602.10000 0000 9745 6549Pharmacology Unit, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Alessandro Ieraci
- grid.4708.b0000 0004 1757 2822Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy ,grid.449889.00000 0004 5945 6678Department of Theoretical and Applied Sciences, eCampus University, Novedrate, Como, Italy
| | - Carola Torazza
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy
| | - Matilde Balbi
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy
| | - Michele Guerinoni
- grid.4708.b0000 0004 1757 2822Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy
| | - Nadeem Muhammad
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy
| | - Isabella Russo
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy ,Genetics Unit, IRCCS Istituto Centro S. Giovanni di Dio, Fatebenefratelli, 25125 Brescia, Italy
| | - Marco Milanese
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy ,grid.410345.70000 0004 1756 7871IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Caterina Scuderi
- grid.7841.aDepartment of Physiology and Pharmacology “Vittorio Erspamer”, SAPIENZA University of Rome, Rome, Italy
| | - Alessandro Barbon
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Luca Steardo
- grid.7841.aDepartment of Physiology and Pharmacology “Vittorio Erspamer”, SAPIENZA University of Rome, Rome, Italy
| | - Giambattista Bonanno
- grid.5606.50000 0001 2151 3065Department of Pharmacy, Unit of Pharmacology and Toxicology, University of Genoa, Genoa, Italy ,grid.410345.70000 0004 1756 7871IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Maurizio Popoli
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, Milano, Italy.
| | - Laura Musazzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
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Batelaan NM, Seldenrijk A, van den Heuvel OA, van Balkom AJLM, Kaiser A, Reneman L, Tan HL. Anxiety, Mental Stress, and Sudden Cardiac Arrest: Epidemiology, Possible Mechanisms and Future Research. Front Psychiatry 2021; 12:813518. [PMID: 35185641 PMCID: PMC8850954 DOI: 10.3389/fpsyt.2021.813518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/29/2021] [Indexed: 12/26/2022] Open
Abstract
Sudden cardiac arrest (SCA) is a leading cause of mortality and morbidity in affluent societies, which underscores the need to identify persons at risk. The etiology of SCA is however complex, with predisposing and precipitating factors interacting. Although anxiety and mental stress have been linked to SCA for decades, their precise role and impact remain unclear and the biological underpinnings are insufficiently understood. In this paper, we systematically reviewed various types of observational studies (total n = 20) examining the association between anxiety or mental stress and SCA. Multiple methodological considerations challenged the summarizing and interpretation of the findings. For anxiety, the overall picture suggests that it predisposes for SCA in physically healthy populations (unadjusted OR = 2.44; 95% CI: 1.06-5.59; n = 3). However, in populations at risk for SCA (n = 4), associations were heterogeneous but not significant. Anxiety may partly predispose to SCA by contributing to other risk factors such as cardiovascular disease and diabetes mellitus via mechanisms such as unhealthy lifestyle and metabolic abnormalities. Mental stress appears to precipitate SCA, presumably by more directly impacting on the cardiac ion channels that control the heart's electrical properties. This may lead to ventricular fibrillation, the arrhythmia that underlies SCA. To advance this field of research, experimental studies that unravel the underlying biological mechanisms are deemed important, and most easily designed for mental stress as a precipitating factor because of the short timeframe. These proof-of-concept studies should examine the whole pathway from the brain to the autonomic nervous system, and eventually to cardiac ion channels. Ultimately, such studies may facilitate the identification of persons at risk and the development of novel preventive strategies.
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Affiliation(s)
- Neeltje M Batelaan
- Department of Psychiatry, Amsterdam University Medical Center (UMC), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Adrie Seldenrijk
- Department of Psychiatry, Amsterdam University Medical Center (UMC), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Odile A van den Heuvel
- Department of Psychiatry, Amsterdam University Medical Center (UMC), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Neuroscience Research Institute, Amsterdam, Netherlands.,Department of Anatomy and Neuroscience, Amsterdam University Medical Center (UMC), Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Anton J L M van Balkom
- Department of Psychiatry, Amsterdam University Medical Center (UMC), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Antonia Kaiser
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Liesbeth Reneman
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Hanno L Tan
- Department of Clinical and Experimental Cardiology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands.,Netherlands Heart Institute, Utrecht, Netherlands
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