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Lightman SL, Conway-Campbell BL. Circadian and ultradian rhythms: Clinical implications. J Intern Med 2024; 296:121-138. [PMID: 38825772 DOI: 10.1111/joim.13795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
The hypothalamic-pituitary-adrenal axis is an extremely dynamic system with a combination of both circadian and ultradian oscillations. This state of 'continuous dynamic equilibration' provides a platform that is able to anticipate events, is sensitive in its response to stressors, remains robust during perturbations of both the internal and external environments and shows plasticity to adapt to a changed environment. In this review, we describe these oscillations of glucocorticoid (GC) hormones and why they are so important for GC-dependent gene activation in the brain and liver, and their consequent effects on the regulation of synaptic and memory function as well as appetite control and metabolic regulation. Abnormalities of mood, appetite and metabolic regulation are well-known consequences of GC therapy, and we suggest that the pattern of GC treatment and hormone replacement should be a much higher priority for endocrinologists and the pharmaceutical industry. One of the major impediments to our research on the importance of these cortisol rhythms in our patients has been our inability to measure repeated levels of hormones across the day in patients in their home or work surroundings. We describe how new wearable methodologies now allow the measurement of 24-h cortisol profiles - including during sleep - and will enable us to define physiological normality and allow us both to develop better diagnostic tests and inform, at an individual patient level, how to improve replacement therapy.
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Affiliation(s)
- Stafford L Lightman
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, UK
| | - Becky L Conway-Campbell
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, UK
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2
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Mitten EH, Souders A, Marron Fernandez de Velasco E, Wickman K. Stress-induced anxiety-related behavior in mice is driven by enhanced excitability of ventral tegmental area GABA neurons. Front Behav Neurosci 2024; 18:1425607. [PMID: 39086371 PMCID: PMC11288924 DOI: 10.3389/fnbeh.2024.1425607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 06/24/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Stress and trauma are significant risk factors for many neuropsychiatric disorders and diseases, including anxiety disorders. Stress-induced anxiety symptoms have been attributed to enhanced excitability in circuits controlling fear, anxiety, and aversion. A growing body of evidence has implicated GABAergic neurons of the ventral tegmental area (VTA) in aversion processing and affective behavior. Methods We used an unpredictable footshock (uFS) model, together with electrophysiological and behavioral approaches, to investigate the role of VTA GABA neurons in anxiety-related behavior in mice. Results One day after a single uFS session, C57BL/6J mice exhibited elevated anxiety-related behavior and VTA GABA neuron excitability. The enhanced excitability of VTA GABA neurons was correlated with increased glutamatergic input and a reduction in postsynaptic signaling mediated via GABAA and GABAB receptors. Chemogenetic activation of VTA GABA neurons was sufficient to increase anxiety-related behavior in stress-naïve mice. In addition, chemogenetic inhibition of VTA GABA neurons suppressed anxiety-related behavior in mice exposed to uFS. Discussion These data show that VTA GABA neurons are an early substrate for stress-induced anxiety-related behavior in mice and suggest that approaches mitigating enhanced excitability of VTA GABA neurons may hold promise for the treatment of anxiety provoked by stress and trauma.
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Affiliation(s)
- Eric H. Mitten
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Anna Souders
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, United States
| | | | - Kevin Wickman
- Department of Pharmacology, University of Minnesota, Minneapolis, MN, United States
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3
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Joëls M, Karst H, Tasker JG. The emerging role of rapid corticosteroid actions on excitatory and inhibitory synaptic signaling in the brain. Front Neuroendocrinol 2024; 74:101146. [PMID: 39004314 DOI: 10.1016/j.yfrne.2024.101146] [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: 04/05/2024] [Revised: 06/26/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
Over the past two decades, there has been increasing evidence for the importance of rapid-onset actions of corticosteroid hormones in the brain. Here, we highlight the distinct rapid corticosteroid actions that regulate excitatory and inhibitory synaptic transmission in the hypothalamus, the hippocampus, basolateral amygdala, and prefrontal cortex. The receptors that mediate rapid corticosteroid actions are located at or close to the plasma membrane, though many of the receptor characteristics remain unresolved. Rapid-onset corticosteroid effects play a role in fast neuroendocrine feedback as well as in higher brain functions, including increased aggression and anxiety, and impaired memory retrieval. The rapid non-genomic corticosteroid actions precede and complement slow-onset, long-lasting transcriptional actions of the steroids. Both rapid and slow corticosteroid actions appear to be indispensable to adapt to a continuously changing environment, and their imbalance can increase an individual's susceptibility to psychopathology.
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Affiliation(s)
- Marian Joëls
- University Medical Center Groningen, University of Groningen, the Netherlands; University Medical Center Utrecht, Utrecht University, the Netherlands.
| | - Henk Karst
- University Medical Center Utrecht, Utrecht University, the Netherlands; SILS-CNS. University of Amsterdam, the Netherlands.
| | - Jeffrey G Tasker
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, and Southeast Louisiana Veterans Affairs Healthcare System, New Orleans, USA.
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4
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Shih CC, Chang CH. Activation of the basolateral or the central amygdala dampened the incentive motivation for food reward on high fixed-ratio schedules. Behav Brain Res 2023; 455:114682. [PMID: 37742807 DOI: 10.1016/j.bbr.2023.114682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/07/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
The amygdala plays crucial roles in emotional processing, motivated behaviors, and stress responses. It receives sensory information and modulates fear- and anxiety-related behaviors. Neuronal activations are induced in the basolateral complex of the amygdala (BLA) and the central nucleus of the amygdala (CeA) when exposing to acute stress, leading to increased alertness and proper behavioral adaptation. Previous studies have shown that animals displayed a decrease in appetitive motivated behaviors under stress conditions. However, whether the hyperactive amygdala is responsible for the decrease in appetitive motivated behaviors remains unknown. In this study, we aimed to examine the role of BLA or CeA activation in effort-based motivated behavior. We pharmacologically activated the BLA or the CeA with N-methyl-D-aspartate (NMDA) before the lever-pressing for food reward test on different fixed-ratio (FR) schedules (FR1, FR16, or FR32) in male Long-Evans rats. Our data showed that activation of either the BLA or the CeA with NMDA (0.05 μg in 0.5 μl per site) decreased the lever-pressing behavior on higher FR schedules of FR16 and FR32, but not on the FR1 test. Importantly, locomotor activity and free-feeding food intake were intact under amygdala activation, suggesting that the decrease in lever-pressing behavior was not due to motor disablement or decreased appetite. These results suggested that activation of the BLA or the CeA negatively impaired the effort-based motivated behavior that the animals were less willing to work for food reward.
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Affiliation(s)
- Cheng-Chia Shih
- Institute of Systems Neuroscience, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chun-Hui Chang
- Institute of Systems Neuroscience, National Tsing Hua University, Hsinchu 30013, Taiwan; Brain Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan.
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5
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Winzenried ET, Everett AC, Saito ER, Miller RM, Johnson T, Neal E, Boyce Z, Smith C, Jensen C, Kimball S, Brantley A, Melendez G, Moffat D, Davis E, Aponik L, Crofts T, Dabney B, Edwards JG. Effects of a True Prophylactic Treatment on Hippocampal and Amygdala Synaptic Plasticity and Gene Expression in a Rodent Chronic Stress Model of Social Defeat. Int J Mol Sci 2023; 24:11193. [PMID: 37446371 PMCID: PMC10342862 DOI: 10.3390/ijms241311193] [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: 03/10/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a complex stress-related disorder induced by exposure to traumatic stress that is characterized by symptoms of re-experiencing, avoidance, and hyper-arousal. While it is widely accepted that brain regions involved in emotional regulation and memory-e.g., the amygdala and hippocampus-are dysregulated in PTSD, the pathophysiology of the disorder is not well defined and therefore, pharmacological interventions are extremely limited. Because stress hormones norepinephrine and cortisol (corticosterone in rats) are heavily implicated in the disorder, we explored whether preemptively and systemically antagonizing β-adrenergic and glucocorticoid receptors with propranolol and mifepristone are sufficient to mitigate pathological changes in synaptic plasticity, gene expression, and anxiety induced by a modified social defeat (SD) stress protocol. Young adult, male Sprague Dawley rats were initially pre-screened for anxiety. The rats were then exposed to SD and chronic light stress to induce anxiety-like symptoms. Drug-treated rats were administered propranolol and mifepristone injections prior to and continuing throughout SD stress. Using competitive ELISAs on plasma, field electrophysiology at CA1 of the ventral hippocampus (VH) and the basolateral amygdala (BLA), quantitative RT-PCR, and behavior assays, we demonstrate that our SD stress increased anxiety-like behavior, elevated long-term potentiation (LTP) in the VH and BLA, and altered the expression of mineralocorticoid, glucocorticoid, and glutamate receptors. These measures largely reverted to control levels with the administration of propranolol and mifepristone. Our findings indicate that SD stress increases LTP in the VH and BLA and that prophylactic treatment with propranolol and mifepristone may have the potential in mitigating these and other stress-induced effects.
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Affiliation(s)
| | - Anna C. Everett
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Erin R. Saito
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Roxanne M. Miller
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Taylor Johnson
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Eliza Neal
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Zachary Boyce
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Calvin Smith
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Chloe Jensen
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Spencer Kimball
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Adam Brantley
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Gabriel Melendez
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Devin Moffat
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Erin Davis
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Lyndsey Aponik
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
| | - Tyler Crofts
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Bryson Dabney
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Jeffrey G. Edwards
- Neuroscience Center, Brigham Young University, Provo, UT 84602, USA
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
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6
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Meftahi GH, Jangravi Z, Taghdir M, Sepandi M, Bahari Z. Micro-injection of propranolol within basolateral amygdala impaired fear and spatial memory and dysregulated evoked responses of CA1 neurons following foot shock stress in rats. Brain Res Bull 2021; 177:12-21. [PMID: 34534638 DOI: 10.1016/j.brainresbull.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 11/18/2022]
Abstract
The basolateral nucleus of the amygdala (BLA) is responsible for memory retrieval after stress. It regulates hippocampal long-term potentiation (LTP) during stress. Although β-adrenoceptors of the BLA have a critical role in memory, few studies have addressed this question in the BLA, and the results still have been contradictory. The present study was designed to investigate the involvement of β-adrenoceptors of the BLA on hippocampus memory, anxiety, and plasticity in intact and stressed rats. Male Wistar rats were submitted to the electrical foot-shock stress for four consecutive days. Over four consecutive days, animals received bilateral micro-injections of either vehicle or propranolol (4 µg in 1 µl/side) into the BLA (5 min before foot-shock stress). Behavioral (memory, as well as anxiety-like behaviors), electrophysiological, and histological (neural arborization in the hippocampal CA1 pyramidal neurons) studies were performed. Results showed that inhibition of β-adrenoceptors of BLA by propranolol significantly further impaired fear and spatial memory in stressed rats. Similarly, propranolol effectively impaired both memories in the intact animals. Propranolol significantly amplified the slope and amplitude of fEPSP in the CA1 area of the hippocampus only in stressed rats. Foot-shock stress significantly increased the number of dendritic branches in the hippocampus, and propranolol suppressed this effect of stress. It is suggested that β-adrenoceptors in the BLA promote memory and reduce anxiety-like behaviors under tonic and stress conditions. Propranolol dysregulated LTP parameters and reduced dendritic branches, resulting in memory impairment. Probably β-adrenoceptors of BLA regulate evoked responses of CA1 neurons only in stress- and not the tonic condition.
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Affiliation(s)
| | - Zohreh Jangravi
- Department of Biochemistry, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Taghdir
- Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mojtaba Sepandi
- Health Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran; Department of Epidemiology and Biostatistics, Faculty of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Zahra Bahari
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran; Department of Physiology and Medical Physics, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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7
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Silkis IG. The Possible Mechanism of the Appearance of Nightmares in Post-Traumatic Stress Disorder and Approaches to Their Prevention. NEUROCHEM J+ 2019. [DOI: 10.1134/s1819712419030127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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8
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Goldfarb EV. Enhancing memory with stress: Progress, challenges, and opportunities. Brain Cogn 2019; 133:94-105. [PMID: 30553573 PMCID: PMC9972486 DOI: 10.1016/j.bandc.2018.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 11/02/2018] [Accepted: 11/19/2018] [Indexed: 02/04/2023]
Abstract
Stress can strongly influence what we learn and remember, including by making memories stronger. Experiments probing stress effects on hippocampus-dependent memory in rodents have revealed modulatory factors and physiological mechanisms by which acute stress can enhance long-term memory. However, extending these findings and mechanisms to understand when stress will enhance declarative memory in humans faces important challenges. This review synthesizes human and rodent studies of stress and memory, examining translational gaps related to measurements of declarative memory and stress responses in humans. Human studies diverge from rodent research by assessing declarative memories that may not depend on the hippocampus and by measuring peripheral rather than central stress responses. This highlights opportunities for future research across species, including assessing stress effects on hippocampal-dependent memory processes in humans and relating peripheral stress responses to stress effects on the function of memory-related brain regions in rodents. Together, these investigations will facilitate the translation of stress effects on memory function from rodents to humans and inform interventions that can harness the positive effects of stress on long-term memory.
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Affiliation(s)
- Elizabeth V Goldfarb
- Yale Stress Center, Department of Psychiatry, Yale University, 2 Church Street South, Suite 209, New Haven, CT 06519, United States.
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9
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Inoue R, Abdou K, Hayashi-Tanaka A, Muramatsu SI, Mino K, Inokuchi K, Mori H. Glucocorticoid receptor-mediated amygdalar metaplasticity underlies adaptive modulation of fear memory by stress. eLife 2018; 7:e34135. [PMID: 29941090 PMCID: PMC6019067 DOI: 10.7554/elife.34135] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 06/05/2018] [Indexed: 12/15/2022] Open
Abstract
Glucocorticoid receptor (GR) is crucial for signaling mediated by stress-induced high levels of glucocorticoids. The lateral nucleus of the amygdala (LA) is a key structure underlying auditory-cued fear conditioning. Here, we demonstrate that genetic disruption of GR in the LA (LAGRKO) resulted in an auditory-cued fear memory deficit for strengthened conditioning. Furthermore, the suppressive effect of a single restraint stress (RS) prior to conditioning on auditory-cued fear memory in floxed GR (control) mice was abolished in LAGRKO mice. Optogenetic induction of long-term depression (LTD) at auditory inputs to the LA reduced auditory-cued fear memory in RS-exposed LAGRKO mice, and in contrast, optogenetic induction of long-term potentiation (LTP) increased auditory-cued fear memory in RS-exposed floxed GR mice. These findings suggest that prior stress suppresses fear conditioning-induced LTP at auditory inputs to the LA in a GR-dependent manner, thereby protecting animals from encoding excessive cued fear memory under stress conditions.
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Affiliation(s)
- Ran Inoue
- Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
| | - Kareem Abdou
- Department of Biochemistry, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
- Department of Biochemistry, Faculty of PharmacyCairo UniversityCairoEgypt
| | - Ayumi Hayashi-Tanaka
- Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
| | - Shin-ichi Muramatsu
- Division of Neurology, Department of MedicineJichi Medical UniversityTochigiJapan
- Center for Gene and Cell Therapy, The Institute of Medical ScienceThe University of TokyoTokyoJapan
| | - Kaori Mino
- Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
| | - Kaoru Inokuchi
- Department of Biochemistry, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
| | - Hisashi Mori
- Department of Molecular Neuroscience, Graduate School of Medicine and Pharmaceutical SciencesUniversity of ToyamaToyamaJapan
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Sachett A, Bevilaqua F, Chitolina R, Garbinato C, Gasparetto H, Dal Magro J, Conterato GM, Siebel AM. Ractopamine hydrochloride induces behavioral alterations and oxidative status imbalance in zebrafish. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2018; 81:194-201. [PMID: 29405861 DOI: 10.1080/15287394.2018.1434848] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The occurrence of ractopamine (RAC) hydrochloride in water bodies is of significant concern due to its ecological impacts and toxicity to humans. RAC hydrochloride is a β-adrenergic agonist drug used as a feed additive to (1) improve feed efficiency, (2) rate of weight gain, and (3) increase carcass leanness in animals raised for their meat. This drug is excreted by animals in urine and introduced into the environment affecting nontarget organisms including fish. In wastewater released from farms, RAC concentrations were detected from 0.124 µg/L to 30.1 µg/L, and in levels ranging from 1.3 × 10-5 to 5.4 × 10-4 μg/L in watersheds. The aim of this study was to examine the effects of exposure to RAC at 0.1, 0.2, 0.85, 8.5, or 85 µg/L dissolved in water on behavior and oxidative status in adult zebrafish. At 0.85 µg/L, RAC treatment increased exploratory behavior of zebrafish; while at 8.5 µg/L, decreased locomotor and exploratory activities were noted. With respect to oxidative stress biomarkers, results showed that RAC at 0.2 µg/L induced lipid peroxidation and elevated total thiol content in zebrafish brain. All drug tested concentrations produced a fall in nonprotein thiol content. Finally, RAC at 0.85, 8.5, or 85 µg/L increased catalase enzyme activity. Our results demonstrated that the exposure to RAC induced behavioral alterations and oxidative stress in zebrafish.
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Affiliation(s)
- Adrieli Sachett
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Fernanda Bevilaqua
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Rafael Chitolina
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Cristiane Garbinato
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Henrique Gasparetto
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Jacir Dal Magro
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
| | - Greicy M Conterato
- b Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais , Universidade Federal de Santa Catarina, Campus de Curitibanos , Curitibanos , SC , Brazil
- c Programa de Pós-Graduação em Farmácia, UFSC , Campus Reitor João David Ferreira Lima , Florianópolis , SC , Brazil
| | - Anna M Siebel
- a Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais , Universidade Comunitária da Região de Chapecó , Chapecó , SC , Brazil
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11
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Stringfield SJ, Higginbotham JA, Wang R, Berger AL, McLaughlin RJ, Fuchs RA. Role of glucocorticoid receptor-mediated mechanisms in cocaine memory enhancement. Neuropharmacology 2017; 123:349-358. [PMID: 28549664 PMCID: PMC5526334 DOI: 10.1016/j.neuropharm.2017.05.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/12/2017] [Accepted: 05/20/2017] [Indexed: 12/18/2022]
Abstract
The basolateral amygdala (BLA) is a critical site for the reconsolidation of labile contextual cocaine memories following retrieval-induced reactivation/destabilization. Here, we examined whether glucocorticoid receptors (GR), which are abundant in the BLA, mediate this phenomenon. Rats were trained to lever press for cocaine reinforcement in a distinct environmental context, followed by extinction training in a different context. Rats were then briefly exposed to the cocaine-paired context (to elicit memory reactivation and reconsolidation) or their home cages (no reactivation control). Exposure to the cocaine-paired context elicited greater serum corticosterone concentrations than home cage stay. Interestingly, the GR antagonist, mifepristone (3-10 ng/hemisphere), administered into the BLA after memory reactivation produced a further, dose-dependent increase in serum corticosterone concentrations during the putative time of cocaine-memory reconsolidation but produced an inverted U-shaped dose-effect curve on subsequent cocaine-seeking behavior 72 h later. This effect was anatomically selective, dependent on memory reactivation (i.e., not observed after home cage exposure), and did not reflect protracted hyperactivity. However, the effect was also observed when mifepristone was administered after novelty stress that mimics drug context-induced hypothalamic-pituitary-adrenal (HPA) axis activation without explicit memory reactivation. Together, these findings suggest that, similar to explicit memory retrieval, a stressful event is sufficient to destabilize cocaine memories and permit their manipulation. Furthermore, BLA GR stimulation exerts inhibitory feedback upon HPA axis activation and thus suppresses cocaine-memory reconsolidation.
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Affiliation(s)
- S J Stringfield
- Neurobiology Curriculum, University of North Carolina, Chapel Hill, NC, USA
| | - J A Higginbotham
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R Wang
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - A L Berger
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R J McLaughlin
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R A Fuchs
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA.
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12
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Hassantash M, Sahraei H, Bahari Z, Meftahi GH, Vesali R. The role of dopamine D2 receptors in the amygdala in metabolic and behavioral responses to stress in male Swiss-Webster mice. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s11515-017-1455-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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13
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Sharp BM. Basolateral amygdala and stress-induced hyperexcitability affect motivated behaviors and addiction. Transl Psychiatry 2017; 7:e1194. [PMID: 28786979 PMCID: PMC5611728 DOI: 10.1038/tp.2017.161] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 05/16/2017] [Accepted: 06/08/2017] [Indexed: 12/11/2022] Open
Abstract
The amygdala integrates and processes incoming information pertinent to reward and to emotions such as fear and anxiety that promote survival by warning of potential danger. Basolateral amygdala (BLA) communicates bi-directionally with brain regions affecting cognition, motivation and stress responses including prefrontal cortex, hippocampus, nucleus accumbens and hindbrain regions that trigger norepinephrine-mediated stress responses. Disruption of intrinsic amygdala and BLA regulatory neurocircuits is often caused by dysfunctional neuroplasticity frequently due to molecular alterations in local GABAergic circuits and principal glutamatergic output neurons. Changes in local regulation of BLA excitability underlie behavioral disturbances characteristic of disorders including post-traumatic stress syndrome (PTSD), autism, attention-deficit hyperactivity disorder (ADHD) and stress-induced relapse to drug use. In this Review, we discuss molecular mechanisms and neural circuits that regulate physiological and stress-induced dysfunction of BLA/amygdala and its principal output neurons. We consider effects of stress on motivated behaviors that depend on BLA; these include drug taking and drug seeking, with emphasis on nicotine-dependent behaviors. Throughout, we take a translational approach by integrating decades of addiction research on animal models and human trials. We show that changes in BLA function identified in animal addiction models illuminate human brain imaging and behavioral studies by more precisely delineating BLA mechanisms. In summary, BLA is required to promote responding for natural reward and respond to second-order drug-conditioned cues; reinstate cue-dependent drug seeking; express stress-enhanced reacquisition of nicotine intake; and drive anxiety and fear. Converging evidence indicates that chronic stress causes BLA principal output neurons to become hyperexcitable.
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Affiliation(s)
- B M Sharp
- Department of Pharmacology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
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Logrip ML, Oleata C, Roberto M. Sex differences in responses of the basolateral-central amygdala circuit to alcohol, corticosterone and their interaction. Neuropharmacology 2017; 114:123-134. [PMID: 27899281 PMCID: PMC5372203 DOI: 10.1016/j.neuropharm.2016.11.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 10/31/2016] [Accepted: 11/23/2016] [Indexed: 02/02/2023]
Abstract
Alcohol use disorders are chronically relapsing conditions that pose significant health challenges for our society. Stress is a prevalent trigger of relapse, particularly for women, yet the mechanisms by which alcohol and stress interact, and how this differs between males and females, remain poorly understood. The glutamatergic circuit connecting the basolateral (BLA) and central (CeA) nuclei of the amygdala is a likely locus for such adaptations, yet the impact of alcohol, corticosterone and their interaction on this circuit has been understudied. In particular, no studies have addressed sex differences in these effects or potential differential responses between the lateral and medial subdivisions of the central nucleus. Thus, we assessed the effects of alcohol and corticosterone treatments on BLA-evoked compound glutamatergic responses in medial and lateral CeA neurons from male and female rats. We observed minimal differences between medial and lateral CeA responses to alcohol and corticosterone in male rats, which were primarily sensitive to alcohol-induced inhibition of glutamatergic postsynaptic potentials. Unlike male neurons, cells from female rats displayed reduced sensitivity to alcohol's inhibitory effects. In addition, female neurons diverged in their sensitivity to corticosterone, with lateral CeA neuronal responses significantly blunted following corticosterone treatment and medial CeA neurons largely unchanged by corticosterone or subsequent co-application of alcohol. Together these data highlight striking differences in how male and female amygdala respond to alcohol and the stress hormone corticosterone, factors which may impact differential susceptibility of the sexes to alcohol- and stress-related disorders.
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Affiliation(s)
- Marian L Logrip
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA.
| | - Christopher Oleata
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Marisa Roberto
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA 92037, USA
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15
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Schayek R, Maroun M. Dissociation in the effects of stress and D1 receptors activation on basolateral amygdalar LTP in juvenile and adult animals. Neuropharmacology 2017; 113:511-518. [DOI: 10.1016/j.neuropharm.2016.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/28/2016] [Accepted: 11/02/2016] [Indexed: 01/08/2023]
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16
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Kalafatakis K, Russell GM, Zarros A, Lightman SL. Temporal control of glucocorticoid neurodynamics and its relevance for brain homeostasis, neuropathology and glucocorticoid-based therapeutics. Neurosci Biobehav Rev 2015; 61:12-25. [PMID: 26656793 DOI: 10.1016/j.neubiorev.2015.11.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 10/09/2015] [Accepted: 11/19/2015] [Indexed: 11/26/2022]
Abstract
Glucocorticoids mediate plethora of actions throughout the human body. Within the brain, they modulate aspects of immune system and neuroinflammatory processes, interfere with cellular metabolism and viability, interact with systems of neurotransmission and regulate neural rhythms. The influence of glucocorticoids on memory and emotional behaviour is well known and there is increasing evidence for their involvement in many neuropsychiatric pathologies. These effects, which at times can be in opposing directions, depend not only on the concentration of glucocorticoids but also the duration of their presence, the temporal relationship between their fluctuations, the co-influence of other stimuli, and the overall state of brain activity. Moreover, they are region- and cell type-specific. The molecular basis of such diversity of effects lies on the orchestration of the spatiotemporal interplay between glucocorticoid- and mineralocorticoid receptors, and is achieved through complex dynamics, mainly mediated via the circadian and ultradian pattern of glucocorticoid secretion. More sophisticated methodologies are therefore required to better approach the study of these hormones and improve the effectiveness of glucocorticoid-based therapeutics.
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Affiliation(s)
- Konstantinos Kalafatakis
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Bristol BS1 3NY, United Kingdom.
| | - Georgina M Russell
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Bristol BS1 3NY, United Kingdom.
| | - Apostolos Zarros
- Research Department of Pharmaceutics, UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, United Kingdom.
| | - Stafford L Lightman
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, School of Clinical Sciences, Faculty of Medicine and Dentistry, University of Bristol, Bristol BS1 3NY, United Kingdom.
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17
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Belujon P, Grace AA. Regulation of dopamine system responsivity and its adaptive and pathological response to stress. Proc Biol Sci 2015; 282:rspb.2014.2516. [PMID: 25788601 DOI: 10.1098/rspb.2014.2516] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Although, historically, the norepinephrine system has attracted the majority of attention in the study of the stress response, the dopamine system has also been consistently implicated. It has long been established that stress plays a crucial role in the pathogenesis of psychiatric disorders. However, the neurobiological mechanisms that mediate the stress response and its effect in psychiatric diseases are not well understood. The dopamine system can play distinct roles in stress and psychiatric disorders. It is hypothesized that, even though the dopamine (DA) system forms the basis for a number of psychiatric disorders, the pathology is likely to originate in the afferent structures that are inducing dysregulation of the DA system. This review explores the current knowledge of afferent modulation of the stress/DA circuitry, and presents recent data focusing on the effect of stress on the DA system and its relevance to psychiatric disorders.
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Affiliation(s)
- Pauline Belujon
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Anthony A Grace
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA
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18
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Beta-adrenergic antagonists during general anesthesia reduced postoperative pain: a systematic review and a meta-analysis of randomized controlled trials. J Anesth 2015; 29:934-43. [DOI: 10.1007/s00540-015-2041-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/21/2015] [Indexed: 12/11/2022]
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19
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The role of glucocorticoid receptor-dependent activity in the amygdala central nucleus and reversibility of early-life stress programmed behavior. Transl Psychiatry 2015; 5:e542. [PMID: 25849981 PMCID: PMC4462600 DOI: 10.1038/tp.2015.35] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 02/10/2015] [Indexed: 12/22/2022] Open
Abstract
Early-life stress (ELS) leads to sustained changes in gene expression and behavior, increasing the likelihood of developing a psychiatric disorder in adulthood. The neurobiological basis for the later-in-life psychopathology is relatively unknown. The current study used a mouse model of ELS, achieved by daily maternal separations during the first 2 weeks of postnatal life, to test the role of amygdalar glucocorticoid receptor (GR) function in mediating the persistent increase in risk-taking behaviors. ELS produced a decrease in GR mRNA in the brain, with a notable reduction in the amygdala that was associated with sustained alterations in anxiety, fear and sociability-like behaviors. Lentiviral-mediated restoration of the GR mRNA deficit, specifically within the adult central nucleus of the amygdala (CeA), reversed the enduring changes in anxiety and social behavior after ELS. These results provide evidence of lasting changes in CeA GR neural circuitry following ELS and suggest a mechanistic role for GR-regulated processes in the CeA in mediating the lifelong maladaptive behaviors of ELS. We demonstrate that the long-lasting behavioral effects of ELS are reversible later in life and implicate the involvement of CeA GR-dependent activity in the sustained dysregulation of emotion following ELS.
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20
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Camp RM, Johnson JD. Repeated stressor exposure enhances contextual fear memory in a beta-adrenergic receptor-dependent process and increases impulsivity in a non-beta receptor-dependent fashion. Physiol Behav 2015; 150:64-8. [PMID: 25747320 DOI: 10.1016/j.physbeh.2015.03.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 02/18/2015] [Accepted: 03/04/2015] [Indexed: 01/05/2023]
Abstract
Memory formation is promoted by stress via the release of norepinephrine and stimulation of beta-adrenergic receptors (β-ARs). Previous data demonstrate that repeated stressor exposure increases norepinephrine turnover and β-AR signaling within the amygdala, which led to the hypothesis that some stress-induced behavioral changes are likely due to facilitated associative learning. To test this, Fischer rats were exposed to chronic mild stress for four days. On day 5, subjects (including non-stressed controls) were injected with the beta-blocker propranolol or vehicle prior to conditioning in an operant box (animals receive two mild foot shocks) or passive avoidance apparatus (animals received a foot shock upon entry into the dark chamber). Twenty-four hours later, subjects were returned to the operant box for measurement of freezing or returned to the passive avoidance apparatus for measurement of latency to enter the dark chamber. Subjects were also tested in an open field to assess context-independent anxiety-like behavior. Animals exposed to chronic stress showed significantly more freezing behavior in the operant box than did controls, and this exaggerated freezing was blocked by propranolol during the conditioning trial. There was no effect of stress on behavior in the open field. Unexpectedly, retention latency was significantly reduced in subjects exposed to chronic stress. These results indicate that chronic exposure to stress results in complex behavioral changes. While repeated stress appears to enhance the formation of fearful memories, it also results in behavioral responses that resemble impulsive behaviors that result in poor decision-making.
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Affiliation(s)
- Robert M Camp
- Kent State University, Biological Sciences Department, Kent, OH 44242, United States
| | - John D Johnson
- Kent State University, Biological Sciences Department, Kent, OH 44242, United States.
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21
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Boitard C, Maroun M, Tantot F, Cavaroc A, Sauvant J, Marchand A, Layé S, Capuron L, Darnaudery M, Castanon N, Coutureau E, Vouimba RM, Ferreira G. Juvenile obesity enhances emotional memory and amygdala plasticity through glucocorticoids. J Neurosci 2015; 35:4092-103. [PMID: 25740536 PMCID: PMC6605580 DOI: 10.1523/jneurosci.3122-14.2015] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 01/23/2015] [Accepted: 01/28/2015] [Indexed: 11/21/2022] Open
Abstract
In addition to metabolic and cardiovascular disorders, obesity is associated with adverse cognitive and emotional outcomes. Its growing prevalence during adolescence is particularly alarming since recent evidence indicates that obesity can affect hippocampal function during this developmental period. Adolescence is a decisive period for maturation of the amygdala and the hypothalamic-pituitary-adrenal (HPA) stress axis, both required for lifelong cognitive and emotional processing. However, little data are available on the impact of obesity during adolescence on amygdala function. Herein, we therefore evaluate in rats whether juvenile high-fat diet (HFD)-induced obesity alters amygdala-dependent emotional memory and whether it depends on HPA axis deregulation. Exposure to HFD from weaning to adulthood, i.e., covering adolescence, enhances long-term emotional memories as assessed by odor-malaise and tone-shock associations. Juvenile HFD also enhances emotion-induced neuronal activation of the basolateral complex of the amygdala (BLA), which correlates with protracted plasma corticosterone release. HFD exposure restricted to adulthood does not modify all these parameters, indicating adolescence is a vulnerable period to the effects of HFD-induced obesity. Finally, exaggerated emotional memory and BLA synaptic plasticity after juvenile HFD are alleviated by a glucocorticoid receptor antagonist. Altogether, our results demonstrate that juvenile HFD alters HPA axis reactivity leading to an enhancement of amygdala-dependent synaptic and memory processes. Adolescence represents a period of increased susceptibility to the effects of diet-induced obesity on amygdala function.
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Affiliation(s)
- Chloé Boitard
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Mouna Maroun
- Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa 31905, Israel
| | - Frédéric Tantot
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Amandine Cavaroc
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Julie Sauvant
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Alain Marchand
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France, and Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France
| | - Sophie Layé
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Lucile Capuron
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Muriel Darnaudery
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Nathalie Castanon
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France
| | - Etienne Coutureau
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France, and Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France
| | - Rose-Marie Vouimba
- CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France, and Université de Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, UMR 5287, 33076 Bordeaux, France
| | - Guillaume Ferreira
- INRA, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France, Université de Bordeaux, Nutrition and Integrative Neurobiology, UMR 1286, 33076 Bordeaux, France,
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22
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Shyti R, Eikermann-Haerter K, van Heiningen SH, Meijer OC, Ayata C, Joëls M, Ferrari MD, van den Maagdenberg AMJM, Tolner EA. Stress hormone corticosterone enhances susceptibility to cortical spreading depression in familial hemiplegic migraine type 1 mutant mice. Exp Neurol 2014; 263:214-20. [PMID: 25447936 DOI: 10.1016/j.expneurol.2014.10.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 09/25/2014] [Accepted: 10/22/2014] [Indexed: 01/10/2023]
Abstract
Stress is a putative migraine trigger, but the pathogenic mechanisms involved are unknown. Stress and stress hormones increase neuronal excitability by enhancing glutamatergic neurotransmission, but inhibitory effects have also been reported. We hypothesise that an acute rise in stress hormones, such as corticosteroids which are released after stress, increase neuronal excitability and thereby may increase susceptibility to cortical spreading depression (CSD), the mechanism underlying the migraine aura. Here we investigated effects of acute restraint stress and of the stress hormone corticosterone on CSD susceptibility as surrogate migraine marker, in a transgenic mouse model of familial hemiplegic migraine type 1 (FHM1), which displays increased glutamatergic cortical neurotransmission and increased propensity for CSD. We found that 20-min and 3-h restraint stress did not influence CSD susceptibility in mutant or wild-type mice, despite elevated levels of plasma corticosterone. By contrast, subcutaneous administration of 20mg/kg corticosterone increased CSD frequency exclusively in mutant mice, while corticosterone plasma levels were similarly elevated in mutants and wild types. The effect of corticosterone on CSD frequency was normalised by pre-administration of the glucocorticoid receptor (GR) antagonist mifepristone. These findings suggest that corticosteroid-induced GR activation can enhance susceptibility to CSD in genetically susceptible individuals, and may predispose to attacks of migraine. Although corticosterone levels rise also during acute stress, the latter likely triggers a spatiotemporally more complex biological response with multiple positive and negative modulators which may not be adequately modeled by exogenous administration of corticosterone alone.
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Affiliation(s)
- Reinald Shyti
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Katharina Eikermann-Haerter
- Stroke Service and Neuroscience Intensive Care Unit, Department of Neurology, MA General Hospital, Harvard Medical School, Charlestown, USA
| | | | - Onno C Meijer
- Department of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands
| | - Cenk Ayata
- Neurovascular Research Laboratory, Department of Radiology, MA General Hospital, Harvard Medical School, Charlestown, USA; Stroke Service and Neuroscience Intensive Care Unit, Department of Neurology, MA General Hospital, Harvard Medical School, Charlestown, USA
| | - Marian Joëls
- Department of Neuroscience and Pharmacology, University Medical Center Utrecht, Rudolf Magnus Institute of Neuroscience, Utrecht, The Netherlands
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands; Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands
| | - Else A Tolner
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands.
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23
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Henckens MJAG, van der Marel K, van der Toorn A, Pillai AG, Fernández G, Dijkhuizen RM, Joëls M. Stress-induced alterations in large-scale functional networks of the rodent brain. Neuroimage 2014; 105:312-22. [PMID: 25462693 DOI: 10.1016/j.neuroimage.2014.10.037] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/20/2014] [Accepted: 10/08/2014] [Indexed: 02/07/2023] Open
Abstract
Stress-related psychopathology is associated with altered functioning of large-scale brain networks. Animal research into chronic stress, one of the most prominent environmental risk factors for development of psychopathology, has revealed molecular and cellular mechanisms potentially contributing to human mental disease. However, so far, these studies have not addressed the system-level changes in extended brain networks, thought to critically contribute to mental disorders. We here tested the effects of chronic stress exposure (10 days immobilization) on the structural integrity and functional connectivity patterns in the brain, using high-resolution structural MRI, diffusion kurtosis imaging, and resting-state functional MRI, while confirming the expected changes in neuronal dendritic morphology using Golgi-staining. Stress effectiveness was confirmed by a significantly lower body weight and increased adrenal weight. In line with previous research, stressed animals displayed neuronal dendritic hypertrophy in the amygdala and hypotrophy in the hippocampal and medial prefrontal cortex. Using independent component analysis of resting-state fMRI data, we identified ten functional connectivity networks in the rodent brain. Chronic stress appeared to increase connectivity within the somatosensory, visual, and default mode networks. Moreover, chronic stress exposure was associated with an increased volume and diffusivity of the lateral ventricles, whereas no other volumetric changes were observed. This study shows that chronic stress exposure in rodents induces alterations in functional network connectivity strength which partly resemble those observed in stress-related psychopathology. Moreover, these functional consequences of stress seem to be more prominent than the effects on gross volumetric change, indicating their significance for future research.
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Affiliation(s)
- Marloes J A G Henckens
- Department of Neuroscience and Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, 6500 HB Nijmegen, The Netherlands.
| | - Kajo van der Marel
- Biomedical MR Imaging and Spectroscopy Group, Image Sciences Institute, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Annette van der Toorn
- Biomedical MR Imaging and Spectroscopy Group, Image Sciences Institute, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Anup G Pillai
- Department of Neuroscience and Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Guillén Fernández
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, 6500 HB Nijmegen, The Netherlands; Department of Cognitive Neuroscience, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Rick M Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Image Sciences Institute, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Marian Joëls
- Department of Neuroscience and Pharmacology, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
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24
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Rapid corticosteroid actions on synaptic plasticity in the mouse basolateral amygdala: Relevance of recent stress history and β-adrenergic signaling. Neurobiol Learn Mem 2014; 112:168-75. [DOI: 10.1016/j.nlm.2013.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 10/17/2013] [Accepted: 10/20/2013] [Indexed: 12/31/2022]
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25
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Modulation of the extinction of fear learning. Brain Res Bull 2014; 105:61-9. [DOI: 10.1016/j.brainresbull.2014.04.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 04/01/2014] [Accepted: 04/02/2014] [Indexed: 11/19/2022]
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26
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Myers B, McKlveen JM, Herman JP. Glucocorticoid actions on synapses, circuits, and behavior: implications for the energetics of stress. Front Neuroendocrinol 2014; 35:180-196. [PMID: 24361584 PMCID: PMC4422101 DOI: 10.1016/j.yfrne.2013.12.003] [Citation(s) in RCA: 207] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 12/02/2013] [Accepted: 12/06/2013] [Indexed: 01/11/2023]
Abstract
Environmental stimuli that signal real or potential threats to homeostasis lead to glucocorticoid secretion by the hypothalamic-pituitary-adrenocortical (HPA) axis. Glucocorticoids promote energy redistribution and are critical for survival and adaptation. This adaptation requires the integration of multiple systems and engages key limbic-neuroendocrine circuits. Consequently, glucocorticoids have profound effects on synaptic physiology, circuit regulation of stress responsiveness, and, ultimately, behavior. While glucocorticoids initiate adaptive processes that generate energy for coping, prolonged or inappropriate glucocorticoid secretion becomes deleterious. Inappropriate processing of stressful information may lead to energetic drive that does not match environmental demand, resulting in risk factors for pathology. Thus, dysregulation of the HPA axis may promote stress-related illnesses (e.g. depression, PTSD). This review summarizes the latest developments in central glucocorticoid actions on synaptic, neuroendocrine, and behavioral regulation. Additionally, these findings will be discussed in terms of the energetic integration of stress and the importance of context-specific regulation of glucocorticoids.
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Affiliation(s)
- Brent Myers
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati, Cincinnati, OH
| | - Jessica M McKlveen
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati, Cincinnati, OH
| | - James P Herman
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati, Cincinnati, OH
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27
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Gill KM, Grace AA. Differential effects of acute and repeated stress on hippocampus and amygdala inputs to the nucleus accumbens shell. Int J Neuropsychopharmacol 2013; 16:2013-25. [PMID: 23745764 PMCID: PMC3758801 DOI: 10.1017/s1461145713000618] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The basolateral amygdala (BLA) and ventral subiculum (vSub) of the hippocampus convey emotion and context information, respectively, to the nucleus accumbens (NAc). Using in vivo extracellular recordings from NAc neurons, we examined how acute and repeated restraint stress alters the plasticity of the vSub and BLA afferent pathways. High-frequency (HFS) and low-frequency (LFS) stimulation was applied to the vSub to assess the impact on NAc responses to vSub and BLA inputs. In addition, iontophoretic application of the dopamine D2-antagonist sulpiride was used to explore the role of dopamine in the NAc in mediating the effects of stress on plasticity. Acute and repeated restraint caused disparate effects on BLA- and vSub-evoked responses in the NAc. Following repeated restraint, but not after acute restraint, HFS of the vSub failed to potentiate the vSub–NAc pathway while instead promoting a long-lasting reduction of the BLA–NAc pathway and these effects were independent of D2-receptor activity. In contrast, LFS to the vSub pathway after acute restraint resulted in potentiation in the vSub–NAc pathway while BLA-evoked responses were unchanged. When sulpiride was applied prior to LFS of the vSub after acute stress, there was a pronounced decrease in vSub-evoked responses similar to control animals. This work provides new insight into the impact of acute and repeated stress on the integration of context and emotion inputs in the NAc. These data support a model of stress whereby the hippocampus is inappropriately activated and dominates the information processing within this circuit via a dopaminergic mechanism after acute bouts of stress.
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Affiliation(s)
- Kathryn M Gill
- Departments of Neuroscience, Psychiatry and Psychology, University of Pittsburgh, PA 15260, USA.
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28
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Joëls M, Pasricha N, Karst H. The interplay between rapid and slow corticosteroid actions in brain. Eur J Pharmacol 2013; 719:44-52. [PMID: 23886619 DOI: 10.1016/j.ejphar.2013.07.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 07/01/2013] [Accepted: 07/04/2013] [Indexed: 11/26/2022]
Abstract
Stress causes the release of many transmitters and hormones, including corticosteroids. These molecules enter the brain and exert their effects through the mineralo- and glucocorticoid receptor. The former receptor plays an important role in neuronal stability. However, it also mediates rapid non-genomic corticosteroid effects that in synergy with other stress mediators activate limbic cells and promote behavioral choices allowing the organism to quickly respond to the imminent danger. Glucocorticoid receptors primarily mediate slow genomic effects, for instance in the hippocampus and prefrontal cortex, which are thought to contribute to contextual and higher cognitive aspects of behavioral performance several hours after stress. Rapid and slow effects interact and collectively contribute to successful behavioral adaptation. Long-term disturbances in the release pattern of corticosteroid hormones and in the responsiveness of their receptors give rise to structural and functional changes in neuronal properties which may contribute to the expression of psychopathology.
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Affiliation(s)
- Marian Joëls
- Department of Neuroscience & Pharmacology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands.
| | - Natasha Pasricha
- Department of Neuroscience & Pharmacology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands
| | - Henk Karst
- Department of Neuroscience & Pharmacology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands
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Giachero M, Bustos SG, Calfa G, Molina VA. A BDNF sensitive mechanism is involved in the fear memory resulting from the interaction between stress and the retrieval of an established trace. Learn Mem 2013; 20:245-55. [PMID: 23589091 DOI: 10.1101/lm.029306.112] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The present study investigates the fear memory resulting from the interaction of a stressful experience and the retrieval of an established fear memory trace. Such a combination enhanced both fear expression and fear retention in adult Wistar rats. Likewise, midazolam intra-basolateral amygdala (BLA) infusion prior to stress attenuated the enhancement of fear memory thus suggesting the involvement of a stress-induced reduction of the GABAergic transmission in BLA in the stress-induced enhancing effect. It has been suggested that, unlike the immediate-early gene Zif268 which is related to the reconsolidation process, the expression of hippocampal brain-derived neurotrophic factor (BDNF) is highly correlated with consolidation. We therefore evaluate the relative contribution of these two neurobiological processes to the fear memory resulting from the above-mentioned interaction. Intra-dorsal hippocampus (DH) infusions of either the antisense Zif268 or the inhibitor of the protein degradation (Clasto-Lactacystin β-Lactone), suggested to be involved in the retrieval-dependent destabilization process, did not affect the resulting contextual memory. In contrast, the knockdown of hippocampal BDNF mitigated the stress-induced facilitating influence on fear retention. In addition, the retrieval experience elevated BDNF level in DH at 60 min after recall exclusively in stressed animals. These findings suggest the involvement of a hippocampal BDNF sensitive mechanism in the stress-promoting influence on the fear memory following retrieval.
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Affiliation(s)
- Marcelo Giachero
- IFEC-CONICET, Departamento de Farmacología, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de Torre y Medina Allende, Ciudad Universitaria, (5000) Córdoba, Argentina
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Valles SL, Benlloch M, Rodriguez ML, Mena S, Pellicer JA, Asensi M, Obrador E, Estrela JM. Stress hormones promote growth of B16-F10 melanoma metastases: an interleukin 6- and glutathione-dependent mechanism. J Transl Med 2013; 11:72. [PMID: 23517603 PMCID: PMC3608962 DOI: 10.1186/1479-5876-11-72] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 03/12/2013] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Interleukin (IL)-6 (mainly of tumor origin) activates glutathione (GSH) release from hepatocytes and its interorgan transport to B16-F10 melanoma metastatic foci. We studied if this capacity to overproduce IL-6 is regulated by cancer cell-independent mechanisms. METHODS Murine B16-F10 melanoma cells were cultured, transfected with red fluorescent protein, injected i.v. into syngenic C57BL/6J mice to generate lung and liver metastases, and isolated from metastatic foci using high-performance cell sorting. Stress hormones and IL-6 levels were measured by ELISA, and CRH expression in the brain by in situ hybridization. DNA binding activity of NF-κB, CREB, AP-1, and NF-IL-6 was measured using specific transcription factor assay kits. IL-6 expression was measured by RT-PCR, and silencing was achieved by transfection of anti-IL-6 small interfering RNA. GSH was determined by HPLC. Cell death analysis was distinguished using fluorescence microscopy, TUNEL labeling, and flow cytometry techniques. Statistical analyses were performed using Student's t test. RESULTS Plasma levels of stress-related hormones (adrenocorticotropin hormone, corticosterone, and noradrenaline) increased, following a circadian pattern and as compared to non-tumor controls, in mice bearing B16-F10 lung or liver metastases. Corticosterone and noradrenaline, at pathophysiological levels, increased expression and secretion of IL-6 in B16-F10 cells in vitro. Corticosterone- and noradrenaline-induced transcriptional up-regulation of IL-6 gene involves changes in the DNA binding activity of nuclear factor-κB, cAMP response element-binding protein, activator protein-1, and nuclear factor for IL-6. In vivo inoculation of B16-F10 cells transfected with anti-IL-6-siRNA, treatment with a glucocorticoid receptor blocker (RU-486) or with a β-adrenoceptor blocker (propranolol), increased hepatic GSH whereas decreased plasma IL-6 levels and metastatic growth. Corticosterone, but not NORA, also induced apoptotic cell death in metastatic cells with low GSH content. CONCLUSIONS Our results describe an interorgan system where stress-related hormones, IL-6, and GSH coordinately regulate metastases growth.
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Affiliation(s)
- Soraya L Valles
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - María Benlloch
- Faculty of Medicine, San Vicente Martir Catholic University, 2 Calle Quevedo, 46001, Valencia, Spain
| | - María L Rodriguez
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - Salvador Mena
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - José A Pellicer
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - Miguel Asensi
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - Elena Obrador
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
| | - José M Estrela
- Department of Physiology, University of Valencia, 15 Av. Blasco Ibañez, 46010, Valencia, Spain
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Srinivasan S, Shariff M, Bartlett SE. The role of the glucocorticoids in developing resilience to stress and addiction. Front Psychiatry 2013; 4:68. [PMID: 23914175 PMCID: PMC3730062 DOI: 10.3389/fpsyt.2013.00068] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Accepted: 06/28/2013] [Indexed: 12/12/2022] Open
Abstract
There is emerging evidence that individuals have the capacity to learn to be resilient by developing protective mechanisms that prevent them from the maladaptive effects of stress that can contribute to addiction. The emerging field of the neuroscience of resilience is beginning to uncover the circuits and molecules that protect against stress-related neuropsychiatric diseases, such as addiction. Glucocorticoids (GCs) are important regulators of basal and stress-related homeostasis in all higher organisms and influence a wide array of genes in almost every organ and tissue. GCs, therefore, are ideally situated to either promote or prevent adaptation to stress. In this review, we will focus on the role of GCs in the hypothalamic-pituitary adrenocortical axis and extra-hypothalamic regions in regulating basal and chronic stress responses. GCs interact with a large number of neurotransmitter and neuropeptide systems that are associated with the development of addiction. Additionally, the review will focus on the orexinergic and cholinergic pathways and highlight their role in stress and addiction. GCs play a key role in promoting the development of resilience or susceptibility and represent important pharmacotherapeutic targets that can reduce the impact of a maladapted stress system for the treatment of stress-induced addiction.
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Affiliation(s)
- Subhashini Srinivasan
- Ernest Gallo Clinic and Research Center at the University of California San Francisco , Emeryville, CA , USA
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