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Ramkumar R, Edge-Partington M, Terstege DJ, Adigun K, Ren Y, Khan NS, Rouhi N, Jamani NF, Tsutsui M, Epp JR, Sargin D. Long-Term Impact of Early-Life Stress on Serotonin Connectivity. Biol Psychiatry 2024; 96:287-299. [PMID: 38316332 DOI: 10.1016/j.biopsych.2024.01.024] [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: 08/10/2023] [Revised: 01/04/2024] [Accepted: 01/19/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Chronic childhood stress is a prominent risk factor for developing affective disorders, yet mechanisms underlying this association remain unclear. Maintenance of optimal serotonin (5-HT) levels during early postnatal development is critical for the maturation of brain circuits. Understanding the long-lasting effects of early-life stress (ELS) on serotonin-modulated brain connectivity is crucial to develop treatments for affective disorders arising from childhood stress. METHODS Using a mouse model of chronic developmental stress, we determined the long-lasting consequences of ELS on 5-HT circuits and behavior in females and males. Using FosTRAP mice, we cross-correlated regional c-Fos density to determine brain-wide functional connectivity of the raphe nucleus. We next performed in vivo fiber photometry to establish ELS-induced deficits in 5-HT dynamics and optogenetics to stimulate 5-HT release to improve behavior. RESULTS Adult female and male mice exposed to ELS showed heightened anxiety-like behavior. ELS further enhanced susceptibility to acute stress by disrupting the brain-wide functional connectivity of the raphe nucleus and the activity of 5-HT neuron population, in conjunction with increased orbitofrontal cortex (OFC) activity and disrupted 5-HT release in medial OFC. Optogenetic stimulation of 5-HT terminals in the medial OFC elicited an anxiolytic effect in ELS mice in a sex-dependent manner. CONCLUSIONS These findings suggest a significant disruption in 5-HT-modulated brain connectivity in response to ELS, with implications for sex-dependent vulnerability. The anxiolytic effect of the raphe-medial OFC circuit stimulation has potential implications for developing targeted stimulation-based treatments for affective disorders that arise from early life adversities.
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Affiliation(s)
- Raksha Ramkumar
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Moriah Edge-Partington
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Dylan J Terstege
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kabirat Adigun
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Yi Ren
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Nazmus S Khan
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Nahid Rouhi
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Naila F Jamani
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Mio Tsutsui
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Jonathan R Epp
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Derya Sargin
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada.
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2
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Khan N, Uribe Isaza J, Rouhi N, Jamani NF, Jabeen S, Gill AK, Tsutsui M, Visser F, Sargin D. Behavioral and Neurophysiological Implications of Pathological Human Tau Expression in Serotonin Neurons. ACS Chem Neurosci 2024; 15:932-943. [PMID: 38377680 PMCID: PMC10921395 DOI: 10.1021/acschemneuro.3c00626] [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: 09/28/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/22/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive degenerative disorder that results in a severe loss of brain cells and irreversible cognitive decline. Memory problems are the most recognized symptoms of AD. However, approximately 90% of patients diagnosed with AD suffer from behavioral symptoms, including mood changes and social impairment years before cognitive dysfunction. Recent evidence indicates that the dorsal raphe nucleus (DRN) is among the initial regions that show tau pathology, which is a hallmark feature of AD. The DRN harbors serotonin (5-HT) neurons, which are critically involved in mood, social, and cognitive regulation. Serotonergic impairment early in the disease process may contribute to behavioral symptoms in AD. However, the mechanisms underlying vulnerability and contribution of the 5-HT system to AD progression remain unknown. Here, we performed behavioral and electrophysiological characterizations in mice expressing a phosphorylation-prone form of human tau (hTauP301L) in 5-HT neurons. We found that pathological tau expression in 5-HT neurons induces anxiety-like behavior and alterations in stress-coping strategies in female and male mice. Female mice also exhibited social disinhibition and mild cognitive impairment in response to 5-HT neuron-specific hTauP301L expression. Behavioral alterations were accompanied by disrupted 5-HT neuron physiology in female and male hTauP301L expressing mice with exacerbated excitability disruption in females only. These data provide mechanistic insights into the brain systems and symptoms impaired early in AD progression, which is critical for disease intervention.
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Affiliation(s)
- Nazmus
S. Khan
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Juan Uribe Isaza
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Nahid Rouhi
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Naila F. Jamani
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Shaista Jabeen
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Amisha K. Gill
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Mio Tsutsui
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Frank Visser
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Derya Sargin
- Department
of Psychology, Department of Physiology and Pharmacology, Cumming School of
Medicine, Hotchkiss Brain Institute, Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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3
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Song JG, Lee B, Kim DE, Seo BK, Oh NS, Kim SH, Kim HW. Fermented mixed grain ameliorates chronic stress-induced depression-like behavior and memory deficit. Food Sci Biotechnol 2024; 33:969-979. [PMID: 38371678 PMCID: PMC10866851 DOI: 10.1007/s10068-023-01387-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/06/2023] [Accepted: 07/13/2023] [Indexed: 02/20/2024] Open
Abstract
Fermented mixed grain (FG) has beneficial anti-cancer, antioxidant, and anti-inflammatory effects. In this study, we investigated the effects of FG on gut inflammation, brain dysfunction, and anxiety/depression-like behavior induced by unpredictable chronic mild stress (UCMS) in mice. Mice were administered mixed grain or FG for 3 weeks and were then exposed to UCMS for 4 weeks. FG administration ameliorated stress-induced anxiety/despair-like behavior. FG administration also prevented UCMS-induced memory impairment. Additionally, the mRNA levels of 5-HTR1A and IL-6 were restored to normal levels in the brains of FG-administered mice. FG administration also inhibited intestinal damage in stressed mice compared with that in the UCMS (without FG) group. These results suggest that FG can alleviate stress-induced intestinal damage, brain dysfunction, and cognitive impairment.
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Affiliation(s)
- Jae Gwang Song
- Department of Bio-integrated Science and Technology, College of Life Sciences, Sejong University, Seoul, 05006 Republic of Korea
| | - Bomi Lee
- Department of Bio-integrated Science and Technology, College of Life Sciences, Sejong University, Seoul, 05006 Republic of Korea
| | - Do Eon Kim
- Department of Bio-integrated Science and Technology, College of Life Sciences, Sejong University, Seoul, 05006 Republic of Korea
| | - Bong Kyeong Seo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
| | - Nam Su Oh
- Department of Food and Biotechnology, Korea University, Sejong, 30019 Republic of Korea
| | - Sae Hun Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841 Republic of Korea
| | - Hyung Wook Kim
- Department of Bio-integrated Science and Technology, College of Life Sciences, Sejong University, Seoul, 05006 Republic of Korea
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4
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Zivi P, Sdoia S, Alfonsi V, Gorgoni M, Mari E, Quaglieri A, De Gennaro L, Giannini AM, Ferlazzo F. Decision-Making and Risk-Propensity Changes during and after the COVID-19 Pandemic Lockdown. Brain Sci 2023; 13:brainsci13050793. [PMID: 37239265 DOI: 10.3390/brainsci13050793] [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: 04/03/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
The imposition of lockdowns during the COVID-19 pandemic placed individuals under conditions of environmental stress, threatening individual and collective wellbeing. This study aimed to investigate the temporal effects of isolation and confinement during and after the Italian lockdown on decision-making, risk propensity, and cognitive control processes. The present study covered almost the entire Italian lockdown period (each week from the end of March to mid-May 2020), plus a follow-up measure (September 2020). At each time-point, respondents completed online behavioral tasks, which involved measuring risk-propensity (Balloon Analogue Risk Task), decision-making (Iowa Gambling Task), and cognitive flexibility (Category Switch Task). They also filled in questionnaires regarding subjective stress and anxiety. The main findings showed that the decision-making abilities of the respondents were affected as the confinement progressed. Furthermore, individuals who were more subjectively impacted by the lockdown/isolation experience exhibited impaired decision-making, especially during the lockdown. The results of the study highlight that prolonged confinement may affect human decision making, and help understand individuals' misbehaviors during emergencies and develop effective countermeasures aimed at reducing the burden of the healthcare system.
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Affiliation(s)
- Pierpaolo Zivi
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Stefano Sdoia
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Valentina Alfonsi
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Maurizio Gorgoni
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Emanuela Mari
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Alessandro Quaglieri
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Luigi De Gennaro
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Anna Maria Giannini
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
| | - Fabio Ferlazzo
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy
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5
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Kang JWM, Keay KA, Kendig MD, Corbit LH, Mor D. Serotonin and Dopamine Show Different Response Profiles to Acute Stress in the Nucleus Accumbens and Medial Prefrontal Cortex of Rats with Neuropathic Pain. Neurochem Res 2023; 48:2265-2280. [PMID: 36941432 PMCID: PMC10182167 DOI: 10.1007/s11064-023-03906-y] [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: 06/18/2022] [Revised: 02/23/2023] [Accepted: 03/03/2023] [Indexed: 03/23/2023]
Abstract
The ability to adaptively guide behaviour requires the integration of external information with internal motivational factors. Decision-making capabilities can be impaired by acute stress and is often exacerbated by chronic pain. Chronic neuropathic pain patients often present with cognitive dysfunction, including impaired decision-making. The mechanisms underlying these changes are not well understood but may include altered monoaminergic transmission in the brain. In this study we investigated the relationships between dopamine, serotonin, and their metabolites in key brain regions that regulate motivated behaviour and decision-making. The neurochemical profiles of the medial prefrontal cortex, orbital prefrontal cortex, and nucleus accumbens were analysed using HPLC in rats that received a chronic constriction injury (CCI) of the right sciatic nerve and an acute stress (15-min restraint), prior to an outcome devaluation task. CCI alone significantly decreased dopamine but not serotonin concentrations in the medial prefrontal cortex. By contrast, restraint stress acutely increased dopamine in the medial prefrontal cortex, and the nucleus accumbens; and increased serotonin in the medial prefrontal cortex 2 h later. The sustained dopaminergic and serotonergic responses to acute stress highlight the importance of an animal's ability to mount an effective coping response. In addition, these data suggest that the impact of nerve injury and acute stress on outcome-devaluation occurs independently of dopaminergic and serotonergic transmission in the medial prefrontal cortex, orbital prefrontal cortex and nucleus accumbens of rats.
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Affiliation(s)
- James W M Kang
- School of Medical Sciences [Neuroscience], The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Kevin A Keay
- School of Medical Sciences [Neuroscience], The University of Sydney, Sydney, NSW, 2006, Australia
| | - Michael D Kendig
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Laura H Corbit
- Department of Psychology, The University of Toronto, Toronto, ON, M5S 3G3, Canada
| | - David Mor
- School of Medical Sciences [Neuroscience], The University of Sydney, Sydney, NSW, 2006, Australia
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6
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Solberg MA, Peters RM, Resko SM, Templin TN. Does Coping Mediate the Relationship Between Adverse Childhood Experiences and Health Outcomes in Young Adults? JOURNAL OF CHILD & ADOLESCENT TRAUMA 2023; 16:1-13. [PMID: 36844997 PMCID: PMC9944421 DOI: 10.1007/s40653-023-00527-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Adverse childhood experiences (ACEs) affect 22-75% of American young adults. ACEs are associated with adverse health outcomes that begin in young adulthood. Yet, scant research has examined if coping can mediate the relationship between ACEs and adverse outcomes. The current study determined if coping mediates the relationship between ACEs and body mass index (BMI), substance use, and mental health outcomes in young adults. A community sample of 100 White and 100 Black young adults 18-34 years of age participated in a cross-sectional study conducted via Zoom conferencing. Participants provided demographic data, height/weight, and completed measures of ACEs, coping, substance use, and mental health outcomes. Coping was measured using an established three-factor model consisting of adaptive, support, and disengaged coping. Structural equation modeling (SEM) examined the relationships of ACEs to outcomes as mediated by coping. Participants were predominantly female (n = 117; 58.5%) and mid-young adult (M = 25.5 years; SD = 4.1). SEM results indicated good model fit: (CMIN/df = 1.52, CFI = 0.94, RMSEA = 0.05 [90% CI = 0.03-0.07], SRMR = 0.06). Only disengaged coping mediated the ACE and substance use (β = 0.36, p = .008), smoking (β = 0.13, p = .004), and mental health (β=-0.26, p = .008) relationships. Disengaged coping styles may be a critical mechanism in developing adverse mental health and substance use outcomes among ACE-exposed individuals. Future ACE and health outcomes research should examine the role of coping. Interventions focusing on adaptive coping may improve the health of individuals exposed to ACEs.
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Affiliation(s)
- Marvin A. Solberg
- College of Nursing, Wayne State University, 5557 Cass Avenue, 48202 Detroit, MI USA
| | - Rosalind M. Peters
- College of Nursing, Wayne State University, 5557 Cass Avenue, 48202 Detroit, MI USA
| | - Stella M. Resko
- School of Social Work, Wayne State University, 5447 Woodward Avenue, 48202 Detroit, MI USA
- Merrill Palmer Skillman Institute, Wayne State University, 71 E Ferry Street, 48202 Detroit, MI USA
| | - Thomas N. Templin
- College of Nursing, Wayne State University, 5557 Cass Avenue, 48202 Detroit, MI USA
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7
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Ventura R, Cabib S, Babicola L, Andolina D, Di Segni M, Orsini C. Interactions Between Experience, Genotype and Sex in the Development of Individual Coping Strategies. Front Behav Neurosci 2022; 15:785739. [PMID: 34987364 PMCID: PMC8721137 DOI: 10.3389/fnbeh.2021.785739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/29/2021] [Indexed: 02/01/2023] Open
Abstract
Coping strategies, the first line of defense against adversities, develop through experience. There is consistent evidence that both genotype and sex contribute to the development of dysfunctional coping, leading to maladaptive outcomes of adverse experiences or to adaptive coping that fosters rapid recovery even from severe stress. However, how these factors interact to influence the development of individual coping strategies is just starting to be investigated. In the following review, we will consider evidence that experience, sex, and genotype influence the brain circuits and neurobiological processes involved in coping with adversities and discuss recent results pointing to the specific effects of the interaction between early experiences, genotype, and stress in the development of functional and dysfunctional coping styles.
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Affiliation(s)
- Rossella Ventura
- Department of Psychology and Centre for Research in Neurobiology D. Bovet, Sapienza University of Rome, Rome, Italy.,Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Simona Cabib
- Department of Psychology and Centre for Research in Neurobiology D. Bovet, Sapienza University of Rome, Rome, Italy.,Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Lucy Babicola
- Department of Psychology and Centre for Research in Neurobiology D. Bovet, Sapienza University of Rome, Rome, Italy.,Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Diego Andolina
- Department of Psychology and Centre for Research in Neurobiology D. Bovet, Sapienza University of Rome, Rome, Italy.,Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Matteo Di Segni
- Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Cristina Orsini
- Department of Psychology and Centre for Research in Neurobiology D. Bovet, Sapienza University of Rome, Rome, Italy
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8
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Causse M, Lepron E, Mandrick K, Peysakhovich V, Berry I, Callan D, Rémy F. Facing successfully high mental workload and stressors: An fMRI study. Hum Brain Mapp 2021; 43:1011-1031. [PMID: 34738280 PMCID: PMC8764488 DOI: 10.1002/hbm.25703] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022] Open
Abstract
The present fMRI study aimed at highlighting patterns of brain activations and autonomic activity when confronted with high mental workload and the threat of auditory stressors. Twenty participants performed a complex cognitive task in either safe or aversive conditions. Our results showed that increased mental workload induced recruitment of the lateral frontoparietal executive control network (ECN), along with disengagement of medial prefrontal and posterior cingulate regions of the default mode network (DMN). Mental workload also elicited an increase in heart rate and pupil diameter. Task performance did not decrease under the threat of stressors, most likely due to efficient inhibition of auditory regions, as reflected by a large decrement of activity in the superior temporal gyri. The threat of stressors was also accompanied with deactivations of limbic regions of the salience network (SN), possibly reflecting emotional regulation mechanisms through control from dorsal medial prefrontal and parietal regions, as indicated by functional connectivity analyses. Meanwhile, the threat of stressors induced enhanced ECN activity, likely for improved attentional and cognitive processes toward the task, as suggested by increased lateral prefrontal and parietal activations. These fMRI results suggest that measuring the balance between ECN, SN, and DMN recruitment could be used for objective mental state assessment. In this sense, an extra recruitment of task‐related regions and a high ratio of lateral versus medial prefrontal activity may represent a relevant marker of increased but efficient mental effort, while the opposite may indicate a disengagement from the task due to mental overload and/or stressors.
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Affiliation(s)
| | - Evelyne Lepron
- Centre de Recherche Cerveau et CognitionUniversité de Toulouse UPS and CNRSToulouseFrance
| | | | | | - Isabelle Berry
- Centre de Recherche Cerveau et CognitionUniversité de Toulouse UPS and CNRSToulouseFrance
| | - Daniel Callan
- ATR Neural Information Analysis LaboratoriesKyotoJapan
| | - Florence Rémy
- Centre de Recherche Cerveau et CognitionUniversité de Toulouse UPS and CNRSToulouseFrance
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9
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Geng X, Wu H, Li Z, Li C, Chen D, Zong J, Liu Z, Wei S, Peng W. Jie-Yu-He-Huan Capsule Ameliorates Anxiety-Like Behaviours in Rats Exposed to Chronic Restraint Stress via the cAMP/PKA/CREB/BDNF Signalling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:1703981. [PMID: 34646421 PMCID: PMC8505060 DOI: 10.1155/2021/1703981] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/18/2021] [Indexed: 12/13/2022]
Abstract
Chronic stress is a critical factor in the aetiology of anxiety disorders; however, in the clinic, enduring and preventive measures are not available, and therapeutic drugs are associated with inevitable side effects. Our study established an anxiety rat model using chronic restraint stress (CRS) and assessed these animals using the open-field test, elevated plus-maze test, and light-dark box test. Jie-Yu-He-Huan capsule (JYHH), a Chinese medicine formula, was used as a preventative drug. The HPA axis-mediated release of corticotropin-releasing hormone, adrenocorticotropic hormone, and corticosterone from the hypothalamus was tested. In the hippocampus and prefrontal cortex, concentrations of 5-HT and its metabolite 5-hydroxyindoleacetic acid, as well as monoamine oxidase A, glucocorticoid receptor, and 5-HT1A receptor expression levels, were measured. Furthermore, we examined protein and mRNA expression of cAMP-PKA-CREB-BDNF pathway components. The results showed that JYHH had a significant preventative effect on the anxiety-like behaviour induced by CRS and prevented abnormal changes in the HPA axis and 5-HT system. Furthermore, CRS inhibited the cAMP-PKA-CREB-BDNF pathway, which returned to normal levels following JYHH treatment. This might be the underlying molecular mechanism of the antianxiety effect of JYHH, which could provide a new clinical target for preventative anxiolytic drugs for chronic stress.
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Affiliation(s)
- Xiwen Geng
- Experimental Centre, Shandong University of Traditional Chinese Medicine, Ji'nan, 250355 Shandong, China
| | - Hongyun Wu
- No. 3 Department of Encephalopathy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji'nan, 250011 Shandong, China
| | - Zifa Li
- Experimental Centre, Shandong University of Traditional Chinese Medicine, Ji'nan, 250355 Shandong, China
| | - Chuanfen Li
- College of Physical Education, Shandong Normal University, Ji'nan, 250014 Shandong, China
| | - Dan Chen
- Experimental Centre, Shandong University of Traditional Chinese Medicine, Ji'nan, 250355 Shandong, China
| | | | - Zimin Liu
- Chenland Nutritionals, Inc., Irvine, 92614 CA, USA
| | - Sheng Wei
- Experimental Centre, Shandong University of Traditional Chinese Medicine, Ji'nan, 250355 Shandong, China
| | - Wei Peng
- No. 3 Department of Encephalopathy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji'nan, 250011 Shandong, China
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10
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Nardell MF, Lee YS, Rousseau E, Julies R, Klaas P, Vundhla P, Butler L, Bassett IV, Mellins CA, Bekker LG, Katz IT. "You are not alone": a qualitative study to explore barriers to ART initiation and implications for a proposed community-based youth treatment club among young adults newly diagnosed with HIV in South Africa. AIDS Care 2021; 33:952-961. [PMID: 33345593 PMCID: PMC8215080 DOI: 10.1080/09540121.2020.1861179] [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: 03/25/2020] [Accepted: 12/03/2020] [Indexed: 10/22/2022]
Abstract
In South Africa, despite universal antiretroviral therapy (ART) availability, 60% of persons living with HIV (PLWH) ages 15-24 are not on treatment. This qualitative study aimed to identify barriers to ART initiation and the implications for a proposed community-based Youth Treatment Club to improve ART initiation for young PLWH in limited-resource, high HIV-prevalence communities in Cape Town, South Africa. Recruiting participants at community testing sites from 2018 to 2019, we conducted semi-structured interviews, informed by Social Action Theory (SAT), with 20 young adults, ages 18- to 24-years-old, newly diagnosed with HIV, along with 10 healthcare providers. Through systematic qualitative analysis, we found that young PLWH face barriers to treatment initiation in three SAT domains: (1) stigmatizing social norms (social regulation processes); (2) challenges coping with a new diagnosis (self-regulation processes); and (3) anticipated stigma in the clinic environment (contextual factors). Participants shared that a proposed community-based Youth Treatment Club for newly diagnosed youth would be an acceptable strategy to promote ART initiation. They emphasized that it should include supportive peers, trained facilitator support for counseling and education, and a youth-friendly environment.
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Affiliation(s)
- Maria F. Nardell
- Connors Center for Women’s Health and Gender Biology, Brigham and Women’s Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Medicine, Brigham and Women’s Hospital, Boston, MA, USA
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Yeonsoo Sara Lee
- Division of Women’s Health, Brigham and Women’s Hospital, Boston, MA, USA
| | - Elzette Rousseau
- The Desmond Tutu Health Foundation, University of Cape Town, Cape Town, Republic of South Africa
| | - Robin Julies
- The Desmond Tutu Health Foundation, University of Cape Town, Cape Town, Republic of South Africa
| | - Portia Klaas
- The Desmond Tutu Health Foundation, University of Cape Town, Cape Town, Republic of South Africa
| | - Prisca Vundhla
- The Desmond Tutu Health Foundation, University of Cape Town, Cape Town, Republic of South Africa
| | - Lisa Butler
- Institute for Collaboration on Health, Intervention and Policy, University of Connecticut, Storrs, CT, USA
| | - Ingrid V. Bassett
- Harvard Medical School, Boston, MA, USA
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - Claude A. Mellins
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University, New York, NY, USA
| | - Linda-Gail Bekker
- The Desmond Tutu Health Foundation, University of Cape Town, Cape Town, Republic of South Africa
- Institute of Infectious Disease and Molecular Medicine, Department of Medicine, University of Cape Town, Cape Town, Republic of South Africa
- Governing Council, International AIDS Society, Geneva, Switzerland
| | - Ingrid T. Katz
- Harvard Medical School, Boston, MA, USA
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Division of Women’s Health, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
- Harvard Global Health Institute, Harvard University, Cambridge, MA, USA
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11
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Kislinger L, Kotrschal K. Hunters and Gatherers of Pictures: Why Photography Has Become a Human Universal. Front Psychol 2021; 12:654474. [PMID: 34168589 PMCID: PMC8217823 DOI: 10.3389/fpsyg.2021.654474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/11/2021] [Indexed: 11/13/2022] Open
Abstract
Photography is ubiquitous worldwide. We analyzed why people take, share, and use personal photographs, independent of their specific cultural background. These behaviors are still poorly understood. Experimental research on them is scarce. Smartphone technology and social media have pushed the success of photography, but cannot explain it, as not all smartphone features are widely used just because they are available. We analyzed properties of human nature that have made taking and using photographs functional behaviors. We did this based on the four levels, which Nikolaas Tinbergen suggested for analyzing why animals behave in a particular way. Including findings from multiple disciplines, we developed a novel conceptual framework-the "Mental Utilization Hypothesis of Photography." It suggests that people adopt photography because it matches with core human mental mechanisms mainly from the social domain, and people use photography as a cognitive, primarily social coping strategy. Our framework comprises a range of testable predictions, provides a new theoretical basis for future empirical investigations into photography, and has practical implications. We conclude that photography has become a human universal, which is based on context-sensitive mental predispositions and differentiates itself in the social and societal environment.
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Affiliation(s)
| | - Kurt Kotrschal
- Department of Behavioral Biology and Konrad Lorenz Forschungsstelle, University of Vienna, Vienna, Austria
- Domestication Lab at the Konrad-Lorenz Institute of Ethology, Wolf Science Center, University of Veterinary Medicine, Ernstbrunn, Austria
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12
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Glover ME, Cohen JL, Singer JR, Sabbagh MN, Rainville JR, Hyland MT, Morrow CD, Weaver CT, Hodes GE, Kerman IA, Clinton SM. Examining the Role of Microbiota in Emotional Behavior: Antibiotic Treatment Exacerbates Anxiety in High Anxiety-Prone Male Rats. Neuroscience 2021; 459:179-197. [PMID: 33540050 PMCID: PMC7965353 DOI: 10.1016/j.neuroscience.2021.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 02/06/2023]
Abstract
Intestinal microbiota are essential for healthy gastrointestinal function and also broadly influence brain function and behavior, in part, through changes in immune function. Gastrointestinal disorders are highly comorbid with psychiatric disorders, although biological mechanisms linking these disorders are poorly understood. The present study utilized rats bred for distinct emotional behavior phenotypes to examine relationships between emotionality, the microbiome, and immune markers. Prior work showed that Low Novelty Responder (LR) rats exhibit high levels of anxiety- and depression-related behaviors as well as myriad neurobiological differences compared to High Novelty Responders (HRs). Here, we hypothesized that the divergent HR/LR phenotypes are accompanied by changes in fecal microbiome composition. We used next-generation sequencing to assess the HR/LR microbiomes and then treated adult HR/LR males with an antibiotic cocktail to test whether it altered behavior. Given known connections between the microbiome and immune system, we also analyzed circulating cytokines and metabolic factors to determine relationships between peripheral immune markers, gut microbiome components, and behavioral measures. There were no baseline HR/LR microbiome differences, and antibiotic treatment disrupted the microbiome in both HR and LR rats. Antibiotic treatment exacerbated aspects of HR/LR behavior, increasing LRs' already high levels of anxiety-like behavior while reducing passive stress coping in both strains. Our results highlight the importance of an individual's phenotype to their response to antibiotics, contributing to the understanding of the complex interplay between gut microbes, immune function, and an individual's emotional phenotype.
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Affiliation(s)
- M E Glover
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
| | - J L Cohen
- Department of Psychiatry, University of California, San Francisco, CA, USA
| | - J R Singer
- MD/PhD Medical Scientist Training Program, University of Alabama-Birmingham, Birmingham, AL, USA
| | - M N Sabbagh
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - J R Rainville
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M T Hyland
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - C D Morrow
- Department of Cell, Developmental, and Integrative Biology, University of Alabama-Birmingham, Birmingham, AL, USA
| | - C T Weaver
- Department of Pathology, University of Alabama-Birmingham, Birmingham, AL, USA
| | - G E Hodes
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Ilan A Kerman
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Behavioral Health Service Line, Veterans Affairs Pittsburgh Health System, Pittsburgh, PA, USA
| | - S M Clinton
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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13
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Fujita S, Yoshida S, Matsuki T, Jaiswal MK, Seki K. The α1-adrenergic receptors in the amygdala regulate the induction of learned despair through protein kinase C-beta signaling. Behav Pharmacol 2021; 32:73-85. [PMID: 33164996 DOI: 10.1097/fbp.0000000000000605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Hyperactivity of amygdala is observed in patients with major depressive disorder. Although the role of α1-adrenoceptor in amygdala on fear memory has been well studied, the role of α1-adrenoceptor in amygdala on depression-like behaviors remains unclear. Therefore, we investigated the effect of α1A-adrenoreceptor in amygdala on despair behavior, evaluated by the immobility time during tail suspension test (TST), pharmacological intervention, and immunohistological methods. C57BL6/J mice given a bilateral intra-amygdala injection of artificial cerebrospinal fluid exhibited an increased duration of immobility in the latter half of both trials of TST with a 24-h interval, a phenomenon known as learned despair. Intra-amygdala injection of WB4101 (1.7 nmol/0.1 µl), an α1 adrenoreceptor antagonist, but not propranolol (250 pmol/0.1 µl), a β-adrenoreceptor antagonist, blocked the induction of learned despair during TST. Immunostaining experiments revealed that ~61-75% of α1A-adrenoreceptor-positive neurons were colocalized with GAD65/67 in amygdala, implying that the α1-adrenoceptors in amygdala may enormously regulate the GABA release. Protein kinase C-beta (PKCβ) was predominantly expressed in the α1A-adrenoreceptor-positive neurons in the BLA, whereas protein kinase C-epsilon (PKCε) was highly expressed with the α1A-adrenoreceptor in the Central nucleus of amygdala. Intra-amygdala injection of ruboxistaurin (10 pmol/0.1 µl), a PKCβ inhibitor, blocked the induction of learned despair during TST, whereas neither TAT-εV1-2 (500 ng/0.1 μl), a cell-permeant PKCε inhibitory peptide, nor HBDDE (50 pmol/0.1 µl), an inhibitor of PKCα and -γ, affected the duration of immobility during TST. These data suggest that the α1-adrenoreceptor in amygdala regulates the induction of learned despair via PKCβ.
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Affiliation(s)
- Shisui Fujita
- Department of Pharmacology, School of Pharmaceutical Science, Ohu University, Koriyama, Fukushima
| | - Satomi Yoshida
- Department of Pharmacology, School of Pharmaceutical Science, Ohu University, Koriyama, Fukushima
| | - Tohru Matsuki
- Department of Cellular Pathology, Institute for Developmental Research, Aichi Developmental Disability Center, Kasugai, Aichi, Japan
| | - Manoj Kumar Jaiswal
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kenjiro Seki
- Department of Pharmacology, School of Pharmaceutical Science, Ohu University, Koriyama, Fukushima
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14
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Park JC, Jeon YJ, Kim JJ, Cho J, Choi DH, Han JS. Brief stress impairs recognition memory through amygdalar activation in animals with medial prefrontal cortex lesions. Neurosci Lett 2020; 735:135245. [PMID: 32652210 DOI: 10.1016/j.neulet.2020.135245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/21/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
The medial prefrontal cortex (mPFC) is thought to exert inhibitory control over stress-induced activation of the amygdala and neurocognitive effects. As evidence to support this, we examined how exposure to either a brief or prolonged stress affected on amygdalar c-Fos levels and recognition memory of animals with mPFC chemical lesions. mPFC-lesioned and sham-operated animals were subjected to either a brief 20-min restraint+20 tailshocks or a prolonged 60-min restraint+60 tailshocks. Post-stress performances in the object recognition memory and c-Fos immunoreactivity in the amygdala were then assessed. In sham-operated animals, the object recognition memory was reliably impaired following the prolonged, but not following the brief stress exposure. On the other hand, in mPFC-lesioned animals, the brief stress significantly impaired recognition memory and enhanced c-Fos expression in the amygdala. Present findings of loss of mPFC activity exacerbating stress effects provide causal evidence that the mPFC exerts inhibitory control on stress.
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Affiliation(s)
- Jung-Cheol Park
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea
| | - Yong-Jae Jeon
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea
| | - Jeansok J Kim
- Department of Psychology, Program in Neuroscience, University of Washington, Seattle, Washington, 98195-1525, USA
| | - Jeiwon Cho
- Department of Brain and Cognitive Sciences, Scranton College, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Dong-Hee Choi
- Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University, Seoul, 05029, Republic of Korea; Department of Medical Science, Konkuk University School of Medicine, Konkuk University, Seoul, 05029, Republic of Korea.
| | - Jung-Soo Han
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea.
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15
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Babicola L, Pietrosanto M, Ielpo D, D'Addario SL, Cabib S, Ventura R, Ferlazzo F, Helmer-Citterich M, Andolina D, Lo Iacono L. RISC RNA sequencing in the Dorsal Raphè reveals microRNAs regulatory activities associated with behavioral and functional adaptations to chronic stress. Brain Res 2020; 1736:146763. [DOI: 10.1016/j.brainres.2020.146763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/03/2020] [Accepted: 03/08/2020] [Indexed: 01/06/2023]
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16
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Neuroprotective Role of Dietary Supplementation with Omega-3 Fatty Acids in the Presence of Basal Forebrain Cholinergic Neurons Degeneration in Aged Mice. Int J Mol Sci 2020; 21:ijms21051741. [PMID: 32143275 PMCID: PMC7084583 DOI: 10.3390/ijms21051741] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 01/05/2023] Open
Abstract
As major components of neuronal membranes, omega-3 polyunsaturated fatty acids (n-3 PUFA) exhibit a wide range of regulatory functions. Recent human and animal studies indicate that n-3 PUFA may exert beneficial effects on aging processes. Here we analyzed the neuroprotective influence of n-3 PUFA supplementation on behavioral deficits, hippocampal neurogenesis, volume loss, and astrogliosis in aged mice that underwent a selective depletion of basal forebrain cholinergic neurons. Such a lesion represents a valid model to mimic a key component of the cognitive deficits associated with dementia. Aged mice were supplemented with n-3 PUFA or olive oil (as isocaloric control) for 8 weeks and then cholinergically depleted with mu-p75-saporin immunotoxin. Two weeks after lesioning, mice were behaviorally tested to assess anxious, motivational, social, mnesic, and depressive-like behaviors. Subsequently, morphological and biochemical analyses were performed. In lesioned aged mice the n-3 PUFA pre-treatment preserved explorative skills and associative retention memory, enhanced neurogenesis in the dentate gyrus, and reduced volume and VAChT levels loss as well as astrogliosis in hippocampus. The present findings demonstrating that n-3 PUFA supplementation before cholinergic depletion can counteract behavioral deficits and hippocampal neurodegeneration in aged mice advance a low-cost, non-invasive preventive tool to enhance life quality during aging.
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17
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Cabib S, Campus P, Conversi D, Orsini C, Puglisi-Allegra S. Functional and Dysfunctional Neuroplasticity in Learning to Cope with Stress. Brain Sci 2020; 10:E127. [PMID: 32102272 PMCID: PMC7071431 DOI: 10.3390/brainsci10020127] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/15/2020] [Accepted: 02/20/2020] [Indexed: 12/20/2022] Open
Abstract
In this brief review, we present evidence of the primary role of learning-associated plasticity in the development of either adaptive or maladaptive coping strategies. Successful interactions with novel stressors foster plasticity within the neural circuits supporting acquisition, consolidation, retrieval, and extinction of instrumental learning leading to development of a rich repertoire of flexible and context-specific adaptive coping responses, whereas prolonged or repeated exposure to inescapable/uncontrollable stressors fosters dysfunctional plasticity within the learning circuits leading to perseverant and inflexible maladaptive coping strategies. Finally, the results collected using an animal model of genotype-specific coping styles indicate the engagement of different molecular networks and the opposite direction of stress effects (reduced vs. enhanced gene expression) in stressed animals, as well as different behavioral alterations, in line with differences in the symptoms profile associated with post-traumatic stress disorder.
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Affiliation(s)
- Simona Cabib
- Department of Psychology, University of Rome ‘La Sapienza’, 00185 Rome, Italy; (D.C.); (C.O.); (S.P.-A.)
- Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, 00143 Rome, Italy
| | - Paolo Campus
- Department of Psychiatry and Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI 48109, USA;
| | - David Conversi
- Department of Psychology, University of Rome ‘La Sapienza’, 00185 Rome, Italy; (D.C.); (C.O.); (S.P.-A.)
| | - Cristina Orsini
- Department of Psychology, University of Rome ‘La Sapienza’, 00185 Rome, Italy; (D.C.); (C.O.); (S.P.-A.)
- Department of Experimental Neurosciences, IRCCS Fondazione Santa Lucia, 00143 Rome, Italy
| | - Stefano Puglisi-Allegra
- Department of Psychology, University of Rome ‘La Sapienza’, 00185 Rome, Italy; (D.C.); (C.O.); (S.P.-A.)
- IRCCS Neuromed, via Atinense 18, 86077 Pozzilli (IS), Italy
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18
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Lo Iacono L, Ielpo D, Accoto A, Di Segni M, Babicola L, D’Addario SL, Ferlazzo F, Pascucci T, Ventura R, Andolina D. MicroRNA-34a Regulates the Depression-like Behavior in Mice by Modulating the Expression of Target Genes in the Dorsal Raphè. Mol Neurobiol 2019; 57:823-836. [DOI: 10.1007/s12035-019-01750-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 08/26/2019] [Indexed: 01/06/2023]
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19
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Matsushita H, Latt HM, Koga Y, Nishiki T, Matsui H. Oxytocin and Stress: Neural Mechanisms, Stress-Related Disorders, and Therapeutic Approaches. Neuroscience 2019; 417:1-10. [PMID: 31400490 DOI: 10.1016/j.neuroscience.2019.07.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 12/24/2022]
Abstract
Clinical reports show that oxytocin (OT) is related to stress-related disorders such as depression, anxiety disorder, and post-traumatic stress disorder. Two key structures in the brain should be paid special attention with regard to stress regulation, namely, the hypothalamus and the hippocampus. The former is the region for central command for most, if not all, of the major endocrine systems, and the latter takes a key position in the regulation of mood and anxiety. There are extensive neural projections between the two structures, and both are functionally intertwined. The hypothalamus projects OTergic neurons to the hippocampus, and the latter possesses high levels of OT receptors. The hippocampus also regulates the secretion of glucocorticoids, a major group of stress hormones. Excessive levels of glucocorticoids in chronic stress cause atrophy of the hippocampus, whereas OT has been shown to protect hippocampal neurons from the toxic effects of glucocorticoids. In this article, we discuss how neural and endocrine mechanisms interplay in stress regulation, with an emphasis on the role of OT, as well as its therapeutic potential in the treatment of stress-related disorders.
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Affiliation(s)
- Hiroaki Matsushita
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Hein Min Latt
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Yuuri Koga
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Teiichi Nishiki
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hideki Matsui
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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20
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Hale MW, Lukkes JL, Dady KF, Kelly KJ, Paul ED, Smith DG, Heinze JD, Raison CL, Lowry CA. Interactions between whole-body heating and citalopram on body temperature, antidepressant-like behaviour, and neurochemistry in adolescent male rats. Behav Brain Res 2019; 359:428-439. [DOI: 10.1016/j.bbr.2018.11.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/26/2018] [Accepted: 11/19/2018] [Indexed: 10/27/2022]
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21
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Lacal I, Ventura R. Epigenetic Inheritance: Concepts, Mechanisms and Perspectives. Front Mol Neurosci 2018; 11:292. [PMID: 30323739 PMCID: PMC6172332 DOI: 10.3389/fnmol.2018.00292] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/02/2018] [Indexed: 01/07/2023] Open
Abstract
Parents’ stressful experiences can influence an offspring’s vulnerability to many pathological conditions, including psychopathologies, and their effects may even endure for several generations. Nevertheless, the cause of this phenomenon has not been determined, and only recently have scientists turned to epigenetics to answer this question. There is extensive literature on epigenetics, but no consensus exists with regard to how and what can (and must) be considered to study and define epigenetics processes and their inheritance. In this work, we aimed to clarify and systematize these concepts. To this end, we analyzed the dynamics of epigenetic changes over time in detail and defined three types of epigenetics: a direct form of epigenetics (DE) and two indirect epigenetic processes—within (WIE) and across (AIE). DE refers to changes that occur in the lifespan of an individual, due to direct experiences with his environment. WIE concerns changes that occur inside of the womb, due to events during gestation. Finally, AIE defines changes that affect the individual’s predecessors (parents, grandparents, etc.), due to events that occur even long before conception and that are somehow (e.g., through gametes, the intrauterine environment setting) transmitted across generations. This distinction allows us to organize the main body of epigenetic evidence according to these categories and then focus on the latter (AIE), referring to it as a faster route of informational transmission across generations—compared with genetic inheritance—that guides human evolution in a Lamarckian (i.e., experience-dependent) manner. Of the molecular processes that are implicated in this phenomenon, well-known (methylation) and novel (non-coding RNA, ncRNA) regulatory mechanisms are converging. Our discussion of the chief methods that are used to study epigenetic inheritance highlights the most compelling technical and theoretical problems of this discipline. Experimental suggestions to expand this field are provided, and their practical and ethical implications are discussed extensively.
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Affiliation(s)
- Irene Lacal
- Department of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy
| | - Rossella Ventura
- Department of Psychology and "Daniel Bovet" Center, Sapienza University of Rome, Rome, Italy.,Fondazione Santa Lucia, IRCCS, Rome, Italy
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22
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Xiao T, Zhang S, Lee LE, Chao HH, van Dyck C, Li CSR. Exploring Age-Related Changes in Resting State Functional Connectivity of the Amygdala: From Young to Middle Adulthood. Front Aging Neurosci 2018; 10:209. [PMID: 30061823 PMCID: PMC6055042 DOI: 10.3389/fnagi.2018.00209] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 06/22/2018] [Indexed: 11/13/2022] Open
Abstract
Functional connectivities of the amygdala support emotional and cognitive processing. Life-span development of resting-state functional connectivities (rsFC) of the amygdala may underlie age-related differences in emotion regulatory mechanisms. To date, age-related changes in amygdala rsFC have been reported through adolescence but not as thoroughly for adulthood. This study investigated age-related differences in amygdala rsFC in 132 young and middle-aged adults (19–55 years). Data processing followed published routines. Overall, amygdala showed positive rsFC with the temporal, sensorimotor and ventromedial prefrontal cortex (vmPFC), insula and lentiform nucleus, and negative rsFC with visual, frontoparietal, and posterior cingulate cortex and caudate head. Amygdala rsFC with the cerebellum was positively correlated with age, and rsFCs with the dorsal medial prefrontal cortex (dmPFC) and somatomotor cortex were negatively correlated with age, at voxel p < 0.001 in combination with cluster p < 0.05 FWE. These age-dependent changes in connectivity appeared to manifest to a greater extent in men than in women, although the sex difference was only evident for the cerebellum in a slope test of age regressions (p = 0.0053). Previous studies showed amygdala interaction with the anterior cingulate cortex (ACC) and vmPFC during emotion regulation. In region of interest analysis, amygdala rsFC with the ACC and vmPFC did not show age-related changes. These findings suggest that intrinsic connectivity of the amygdala evolved from young to middle adulthood in selective brain regions, and may inform future studies of age-related emotion regulation and maladaptive development of the amygdala circuits as an etiological marker of emotional disorders.
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Affiliation(s)
- Ting Xiao
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.,Xiangya School of Medicine, Central South University, Changsha, China
| | - Sheng Zhang
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Lue-En Lee
- Department of Psychiatry, National Taiwan University, Taipei, Taiwan
| | - Herta H Chao
- Department of Medicine, Yale University School of Medicine, New Haven, CT, United States.,VA Connecticut Healthcare System, West Haven, CT, United States
| | - Christopher van Dyck
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.,Department of Neuroscience, Yale University School of Medicine, New Haven, CT, United States.,Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT, United States
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.,Department of Neuroscience, Yale University School of Medicine, New Haven, CT, United States.,Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT, United States.,Beijing Huilongguan Hospital, Peking University, Beijing, China
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23
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Zhang X, Ge TT, Yin G, Cui R, Zhao G, Yang W. Stress-Induced Functional Alterations in Amygdala: Implications for Neuropsychiatric Diseases. Front Neurosci 2018; 12:367. [PMID: 29896088 PMCID: PMC5987037 DOI: 10.3389/fnins.2018.00367] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/11/2018] [Indexed: 12/20/2022] Open
Abstract
The amygdala plays a major role in the processing of physiologic and behavioral responses to stress and is characterized by gamma-aminobutyric acid (GABA)-mediated high inhibitory tone under resting state. Human and animal studies showed that stress lead to a hyperactivity of amygdala, which was accompanied by the removal of inhibitory control. However, the contribution of hyperactivity of amygdala to stress-induced neuropsychiatric diseases, such as anxiety and mood disorders, is still dubious. In this review, we will summarize stress-induced various structural and functional alterations in amygdala, including the GABA receptors expression, GABAergic transmission and synaptic plasticity. It may provide new insight on the neuropathologic and neurophysiological mechanisms of neuropsychiatric diseases.
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Affiliation(s)
- Xin Zhang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China.,Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, China.,Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Tong Tong Ge
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China
| | - Guanghao Yin
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China
| | - Ranji Cui
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China
| | - Guoqing Zhao
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China.,Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, China
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24
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Meckes JK, Lim PH, Wert SL, Luo W, Gacek SA, Platt D, Jankord R, Saar K, Redei EE. Brain region-specific expression of genes mapped within quantitative trait loci for behavioral responsiveness to acute stress in Fisher 344 and Wistar Kyoto male rats. PLoS One 2018; 13:e0194293. [PMID: 29529077 PMCID: PMC5847310 DOI: 10.1371/journal.pone.0194293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/28/2018] [Indexed: 12/27/2022] Open
Abstract
Acute stress responsiveness is a quantitative trait that varies in severity from one individual to another; however, the genetic component underlying the individual variation is largely unknown. Fischer 344 (F344) and Wistar Kyoto (WKY) rat strains show large differences in behavioral responsiveness to acute stress, such as freezing behavior in response to footshock during the conditioning phase of contextual fear conditioning (CFC). Quantitative trait loci (QTL) have been identified for behavioral responsiveness to acute stress in the defensive burying (DB) and open field test (OFT) from a reciprocal F2 cross of F344 and WKY rat strains. These included a significant QTL on chromosome 6 (Stresp10). Here, we hypothesized that the Stresp10 region harbors genes with sequence variation(s) that contribute to differences in multiple behavioral response phenotypes between the F344 and WKY rat strains. To test this hypothesis, first we identified differentially expressed genes within the Stresp10 QTL in the hippocampus, amygdala, and frontal cortex of F344 and WKY male rats using genome-wide microarray analyses. Genes with both expression differences and non-synonymous sequence variations in their coding regions were considered candidate quantitative trait genes (QTGs). As a proof-of-concept, the F344.WKY-Stresp10 congenic strain was generated with the Stresp10 WKY donor region into the F344 recipient strain. This congenic strain showed behavioral phenotypes similar to those of WKYs. Expression patterns of Gpatch11 (G-patch domain containing 11), Cdkl4 (Cyclin dependent kinase like 4), and Drc1 (Dynein regulatory complex subunit 1) paralleled that of WKY in the F344.WKY-Stresp10 strain matching the behavioral profiles of WKY as opposed to F344 parental strains. We propose that these genes are candidate QTGs for behavioral responsiveness to acute stress.
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Affiliation(s)
- Jeanie K. Meckes
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Patrick H. Lim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Stephanie L. Wert
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Wendy Luo
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Stephanie A. Gacek
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Dana Platt
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
| | - Ryan Jankord
- Applied Neuroscience, Warfighter Interface Division, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, United States of America
| | - Kathrin Saar
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin-Buch, Germany
| | - Eva E. Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America
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MicroRNA-34 Contributes to the Stress-related Behavior and Affects 5-HT Prefrontal/GABA Amygdalar System through Regulation of Corticotropin-releasing Factor Receptor 1. Mol Neurobiol 2018; 55:7401-7412. [PMID: 29417477 DOI: 10.1007/s12035-018-0925-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 01/24/2018] [Indexed: 12/31/2022]
Abstract
Recent studies show that microRNA-34 (miR-34) family is critical in the regulation of stress response also suggesting that it may contribute to the individual responsiveness to stress. We have recently demonstrated that mice carrying a genetic deletion of all miR-34 isoforms (triple knockout, TKO) lack the stress-induced serotonin (5-HT) and GABA release in the medial prefrontal cortex (mpFC) and basolateral amygdala (BLA), respectively. Here, we evaluated if the absence of miR-34 was also able to modify the stress-coping strategy in the forced swimming test. We found that the blunted neurochemical response to stress was associated with lower levels of immobility (index of active coping behavior) in TKO compared to WT mice. Interestingly, among the brain regions mostly involved in the stress-related behaviors, the miR-34 displayed the strongest expression in the dorsal raphe nuclei (DRN) of wild-type (WT) mice. In the DRN, the corticotropin-releasing factor receptors (CRFR) 1 and 2, contribute to determine the stress-coping style and the CRFR1 is a target of miR-34. Thus, we hypothesized that the miR-34-dependent modulation of CRFR1 expression may be involved in the DRN regulation of stress-coping strategies. In line with this hypothesis, we found increased CRFR1 levels in the DNR of TKO compared to WT mice. Moreover, infusion of CRFR1 antagonist in the DRN of TKO mice reverted their behavioral and neurochemical phenotype. We propose that miR-34 modulate the mpFC 5-HT/BLA GABA response to stress acting on CRFR1 in the DRN and that this mechanism could contribute to determine individual stress-coping strategy.
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Loss of Intercalated Cells (ITCs) in the Mouse Amygdala of Tshz1 Mutants Correlates with Fear, Depression, and Social Interaction Phenotypes. J Neurosci 2017; 38:1160-1177. [PMID: 29255003 DOI: 10.1523/jneurosci.1412-17.2017] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 11/10/2017] [Accepted: 12/10/2017] [Indexed: 01/17/2023] Open
Abstract
The intercalated cells (ITCs) of the amygdala have been shown to be critical regulatory components of amygdalar circuits, which control appropriate fear responses. Despite this, the molecular processes guiding ITC development remain poorly understood. Here we establish the zinc finger transcription factor Tshz1 as a marker of ITCs during their migration from the dorsal lateral ganglionic eminence through maturity. Using germline and conditional knock-out (cKO) mouse models, we show that Tshz1 is required for the proper migration and differentiation of ITCs. In the absence of Tshz1, migrating ITC precursors fail to settle in their stereotypical locations encapsulating the lateral amygdala and BLA. Furthermore, they display reductions in the ITC marker Foxp2 and ectopic persistence of the dorsal lateral ganglionic eminence marker Sp8. Tshz1 mutant ITCs show increased cell death at postnatal time points, leading to a dramatic reduction by 3 weeks of age. In line with this, Foxp2-null mutants also show a loss of ITCs at postnatal time points, suggesting that Foxp2 may function downstream of Tshz1 in the maintenance of ITCs. Behavioral analysis of male Tshz1 cKOs revealed defects in fear extinction as well as an increase in floating during the forced swim test, indicative of a depression-like phenotype. Moreover, Tshz1 cKOs display significantly impaired social interaction (i.e., increased passivity) regardless of partner genetics. Together, these results suggest that Tshz1 plays a critical role in the development of ITCs and that fear, depression-like and social behavioral deficits arise in their absence.SIGNIFICANCE STATEMENT We show here that the zinc finger transcription factor Tshz1 is expressed during development of the intercalated cells (ITCs) within the mouse amygdala. These neurons have previously been shown to play a crucial role in fear extinction. Tshz1 mouse mutants exhibit severely reduced numbers of ITCs as a result of abnormal migration, differentiation, and survival of these neurons. Furthermore, the loss of ITCs in mouse Tshz1 mutants correlates well with defects in fear extinction as well as the appearance of depression-like and abnormal social interaction behaviors reminiscent of depressive disorders observed in human patients with distal 18q deletions, including the Tshz1 locus.
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27
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Campus P, Canterini S, Orsini C, Fiorenza MT, Puglisi-Allegra S, Cabib S. Stress-Induced Reduction of Dorsal Striatal D2 Dopamine Receptors Prevents Retention of a Newly Acquired Adaptive Coping Strategy. Front Pharmacol 2017; 8:621. [PMID: 28955227 PMCID: PMC5601053 DOI: 10.3389/fphar.2017.00621] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 08/24/2017] [Indexed: 11/14/2022] Open
Abstract
The inability to learn an adaptive coping strategy in a novel stressful condition leads to dysfunctional stress coping, a marker of mental disturbances. This study tested the involvement of dorsal striatal dopamine receptors in the dysfunctional coping with the Forced Swim test fostered by a previous experience of reduced food availability. Adult male mice were submitted to a temporary (12 days) reduction of food availability [food-restricted (FR)] or continuously free-fed (FF). Different groups of FF and FR mice were used to evaluate: (1) dorsal striatal mRNA levels of the two isoforms of the dopamine D2 receptor (D2S, D2L). (2) Forced Swim-induced c-fos expression in the dorsal striatum; (3) acquisition and 24 h retention of passive coping with Forced Swim. Additional groups of FF mice were tested for 24 h retention of passive coping acquired during a first experience with Forced Swim immediately followed by intra-striatal infusion of vehicle or two doses of the dopamine D2/D3 receptors antagonist sulpiride or the D1/D5 receptors antagonist SCH23390. Previous restricted feeding selectively reduced mRNA levels of both D2 isoforms and abolished Forced Swim-induced c-fos expression in the left Dorsolateral Striatum and selectively prevented 24 h retention of the coping strategy acquired in a first experience of Forced Swim. Finally, temporary blockade of left Dorsolateral Striatum D2/D3 receptors immediately following the first Forced Swim experience selectively reproduced the behavioral effect of restricted feeding in FF mice. In conclusion, the present results demonstrate that mice previously exposed to a temporary reduction of food availability show low striatal D2 receptors, a known marker of addiction-associated aberrant neuroplasticity, as well as liability to relapse into maladaptive stress coping strategies. Moreover, they offer strong support to a causal relationship between reduction of D2 receptors in the left Dorsolateral Striatum and impaired consolidation of newly acquired adaptive coping.
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Affiliation(s)
- Paolo Campus
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy.,Department of Psychiatry, University of Michigan, Ann ArborMI, United States
| | - Sonia Canterini
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy
| | - Cristina Orsini
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy.,Fondazione Santa Lucia (IRCCS)Rome, Italy
| | - Maria Teresa Fiorenza
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy.,Fondazione Santa Lucia (IRCCS)Rome, Italy
| | - Stefano Puglisi-Allegra
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy.,Fondazione Santa Lucia (IRCCS)Rome, Italy
| | - Simona Cabib
- Department of Psychology, Center 'Daniel Bovet', Sapienza Università di RomaRome, Italy.,Fondazione Santa Lucia (IRCCS)Rome, Italy
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28
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Liu R, Ahmed F, Cayer C, Mullally M, Carballo AF, Rojas MO, Garcia M, Baker J, Masic A, Sanchez PE, Poveda L, Merali Z, Durst T, Arnason JT. New Botanical Anxiolytics for Use in Companion Animals and Humans. AAPS JOURNAL 2017; 19:1626-1631. [DOI: 10.1208/s12248-017-0144-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/28/2017] [Indexed: 11/30/2022]
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29
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Tekieh E, Riahi E, Kazemi M, Sahraei H, Tavakoli H, Aliyary H, Hajinasrollah M, Salehi M, Meftahi G, Saberi M. Role of basal stress hormones and amygdala dimensions in stress coping strategies of male rhesus monkeys in response to a hazard-reward conflict. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2017; 20:951-957. [PMID: 29085588 PMCID: PMC5651482 DOI: 10.22038/ijbms.2017.9120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/25/2017] [Indexed: 11/11/2022]
Abstract
OBJECTIVES In the present study the effect of stress on monkeys that had learned to retrieve food from a five-chamber receptacle, as well as the relationship between their behavior and the serum cortisol and epinephrine levels and relative size of the amygdala was evaluated. MATERIALS AND METHODS Six male rhesus monkeys were individually given access to the food reward orderly. They could easily retrieve the rewards from all chambers except for the chamber 4, which a brief, mild electric shock (3 V) was delivered to them upon touching the chamber's interior. The coping behaviors were video-recorded and analyzed offline. Baseline serum cortisol and epinephrine levels were measured before the experiments using monkey enzyme-linked immunosorbent assay kit. One week after the behavioral experiment, the monkeys' brains were scanned using magnetic resonance imaging under general anesthesia. The cross-sectional area of the left amygdala in sagittal plane relative to the area of the whole brain in the same slice was evaluated by the planimetric method using ImageJ software. RESULTS Exposure to the distressing condition caused different behavioral responses. Monkeys with higher baseline levels of serum cortisol and epinephrine and larger amygdala behaved more violently in the face of stress, indicating adopting emotion-focused stress-coping strategies. Conversely, those with low plasma epinephrine, moderate cortisol, and smaller amygdala showed perseverative behavior, indicating a problem-focused coping style. CONCLUSION In dealing with the same stress, different responses might be observed from nonhuman primates according to their cortisol and epinephrine levels as well as their amygdala dimensions.
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Affiliation(s)
- Elaheh Tekieh
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Esmail Riahi
- Department of Physiology, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Kazemi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hedayat Sahraei
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hassan Tavakoli
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamed Aliyary
- Department of Electrical, Biomedical and Mechatronics Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
| | - Mostafa Hajinasrollah
- Animal Core Facility, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Tehran, Iran
| | - Maryam Salehi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Gholamhossein Meftahi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mehdi Saberi
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran
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30
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Wade NE, Padula CB, Anthenelli RM, Nelson E, Eliassen J, Lisdahl KM. Blunted amygdala functional connectivity during a stress task in alcohol dependent individuals: A pilot study. Neurobiol Stress 2017; 7:74-79. [PMID: 28626785 PMCID: PMC5466595 DOI: 10.1016/j.ynstr.2017.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 05/23/2017] [Accepted: 05/30/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Scant research has been conducted on neural mechanisms underlying stress processing in individuals with alcohol dependence (AD). We examined neural substrates of stress in AD individuals compared with controls using an fMRI task previously shown to induce stress, assessing amygdala functional connectivity to medial prefrontal cortex (mPFC). MATERIALS AND METHODS For this novel pilot study, 10 abstinent AD individuals and 11 controls completed a modified Trier stress task while undergoing fMRI acquisition. The amygdala was used as a seed region for whole-brain seed-based functional connectivity analysis. RESULTS After controlling for family-wise error (p = 0.05), there was significantly decreased left and right amygdala connectivity with frontal (specifically mPFC), temporal, parietal, and cerebellar regions. Subjective stress, but not craving, increased from pre-to post-task. CONCLUSIONS This study demonstrated decreased connectivity between the amygdala and regions important for stress and emotional processing in long-term abstinent individuals with AD. These results suggest aberrant stress processing in individuals with AD even after lengthy periods of abstinence.
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Affiliation(s)
- Natasha E. Wade
- Department of Psychology, University of Wisconsin-Milwaukee, 2441 E. Hartford Ave, Milwaukee, WI 53211, USA
| | - Claudia B. Padula
- Sierra Pacific Mental Illness Research, Education, and Clinical Center, VA, Palo Alto, USA
- Health Care System and Department of Psychiatry and Behavioral Sciences, Stanford University, 3801 Miranda Ave, Palo Alto, CA 93403, USA
| | - Robert M. Anthenelli
- Department of Psychiatry, University of California, San Diego, Health Sciences, 9500 Gilman Drive, La Jolla, CA 92093-0603, USA
| | - Erik Nelson
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, PO Box 670559, Cincinnati, OH, USA
| | - James Eliassen
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati, PO Box 670559, Cincinnati, OH, USA
| | - Krista M. Lisdahl
- Department of Psychology, University of Wisconsin-Milwaukee, 2441 E. Hartford Ave, Milwaukee, WI 53211, USA
- Corresponding author.
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31
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Miller CWT. Epigenetic and Neural Circuitry Landscape of Psychotherapeutic Interventions. PSYCHIATRY JOURNAL 2017; 2017:5491812. [PMID: 29226124 PMCID: PMC5684598 DOI: 10.1155/2017/5491812] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 04/11/2017] [Indexed: 11/21/2022]
Abstract
The science behind psychotherapy has garnered considerable interest, as objective measures are being developed to map the patient's subjective change over the course of treatment. Prenatal and early life influences have a lasting impact on how genes are expressed and the manner in which neural circuits are consolidated. Transgenerationally transmitted epigenetic markers as well as templates of enhanced thought flexibility versus evasion can be passed down from parent to child. This influences gene expression/repression (impacting neuroplasticity) and kindling of neurocircuitry which can perpetuate maladaptive cognitive processing seen in a number of psychiatric conditions. Importantly, genetic factors and the compounding effects of early life adversity do not inexorably lead to certain fated outcomes. The concepts of vulnerability and resilience are becoming more integrated into the framework of "differential susceptibility," speaking to how corrective environmental factors may promote epigenetic change and reconfigure neural templates, allowing for symptomatic improvement. Psychotherapy is one such factor, and this review will focus on our current knowledge of its epigenetic and neurocircuitry impact.
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Affiliation(s)
- Christopher W. T. Miller
- University of Maryland School of Medicine, 701 W. Pratt St., 4th Floor, Baltimore, MD 21201, USA
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32
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Cutuli D, Berretta E, Pasqualini G, De Bartolo P, Caporali P, Laricchiuta D, Sampedro-Piquero P, Gelfo F, Pesoli M, Foti F, Begega A, Petrosini L. Influence of Pre-reproductive Maternal Enrichment on Coping Response to Stress and Expression of c-Fos and Glucocorticoid Receptors in Adolescent Offspring. Front Behav Neurosci 2017; 11:73. [PMID: 28536510 PMCID: PMC5422443 DOI: 10.3389/fnbeh.2017.00073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/07/2017] [Indexed: 12/24/2022] Open
Abstract
Environmental enrichment (EE) is an experimental setting broadly used for investigating the effects of complex social, cognitive, and sensorimotor stimulations on brain structure and function. Recent studies point out that parental EE experience, even occurring in the pre-reproductive phase, affects neural development and behavioral trajectories of the offspring. In the present study we investigated the influences of pre-reproductive EE of female rats on maternal behavior and adolescent male offspring's coping response to an inescapable stressful situation after chronic social isolation. For this purpose female Wistar rats were housed from weaning to breeding age in enriched or standard environments. Subsequently, all females were mated and housed in standard conditions until offspring weaning. On the first post partum day (ppd 1), mother-pup interactions in undisturbed conditions were recorded. Further, after weaning the male pups were reared for 2 weeks under social isolation or in standard conditions, and then submitted or not to a single-session Forced Swim Test (FST). Offspring's neuronal activation and plastic changes were identified by immunohistochemistry for c-Fos and glucocorticoid receptors (GRs), and assessed by using stereological analysis. The biochemical correlates were measured in the hippocampus, amygdala and cingulate cortex, structures involved in hypothalamic-pituitary-adrenocortical axis regulation. Enriched dams exhibited increased Crouching levels in comparison to standard reared dams. In the offspring of both kinds of dams, social isolation reduced body weight, decreased Immobility, and increased Swimming during FST. Moreover, isolated offspring of enriched dams exhibited higher levels of Climbing in comparison to controls. Interestingly, in the amygdala of both isolated and control offspring of enriched dams we found a lower number of c-Fos immunopositive cells in response to FST and a higher number of GRs in comparison to the offspring of standard dams. These results highlight the profound influence of a stressful condition, such as the social isolation, on the brain of adolescent rats, and underline intergenerational effects of maternal experiences in regulating the offspring response to stress.
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Affiliation(s)
- Debora Cutuli
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
| | - Erica Berretta
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
| | - Greta Pasqualini
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
| | - Paola De Bartolo
- Santa Lucia FoundationRome, Italy.,Department of TeCoS, Marconi UniversityRome, Italy
| | - Paola Caporali
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy
| | - Daniela Laricchiuta
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
| | - Patricia Sampedro-Piquero
- Department of Biological and Health Psychology, Psychology Faculty, Autonomous University of MadridMadrid, Spain
| | - Francesca Gelfo
- Santa Lucia FoundationRome, Italy.,Department of Systemic Medicine, University of Rome Tor VergataRome, Italy
| | - Matteo Pesoli
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
| | - Francesca Foti
- Santa Lucia FoundationRome, Italy.,Department of Medical and Surgical Sciences, Magna Graecia UniversityCatanzaro, Italy
| | - Azucena Begega
- Neuroscience Laboratory, Psychology Department, University of OviedoOviedo, Spain
| | - Laura Petrosini
- Department of Psychology, Faculty of Medicine and Psychology, Sapienza University of RomeRome, Italy.,Santa Lucia FoundationRome, Italy
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33
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Affiliation(s)
- Diego Andolina
- Department of Psychology and Research Center in Neurobiology "Daniel Bovet" Sapienza University, Rome, Italy.,Santa Lucia Foundation, Rome, Italy
| | - Matteo Di Segni
- Santa Lucia Foundation, Rome, Italy.,Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Rossella Ventura
- Department of Psychology and Research Center in Neurobiology "Daniel Bovet" Sapienza University, Rome, Italy.,Santa Lucia Foundation, Rome, Italy
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34
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Capgras syndrome in Parkinson’s disease: two new cases and literature review. Neurol Sci 2016; 38:225-231. [DOI: 10.1007/s10072-016-2765-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
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35
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Scheinost D, Kwon SH, Lacadie C, Sze G, Sinha R, Constable RT, Ment LR. Prenatal stress alters amygdala functional connectivity in preterm neonates. Neuroimage Clin 2016; 12:381-8. [PMID: 27622134 PMCID: PMC5009231 DOI: 10.1016/j.nicl.2016.08.010] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/07/2016] [Accepted: 08/09/2016] [Indexed: 12/29/2022]
Abstract
Exposure to prenatal and early-life stress results in alterations in neural connectivity and an increased risk for neuropsychiatric disorders. In particular, alterations in amygdala connectivity have emerged as a common effect across several recent studies. However, the impact of prenatal stress exposure on the functional organization of the amygdala has yet to be explored in the prematurely-born, a population at high risk for neuropsychiatric disorders. We test the hypothesis that preterm birth and prenatal exposure to maternal stress alter functional connectivity of the amygdala using two independent cohorts. The first cohort is used to establish the effects of preterm birth and consists of 12 very preterm neonates and 25 term controls, all without prenatal stress exposure. The second is analyzed to establish the effects of prenatal stress exposure and consists of 16 extremely preterm neonates with prenatal stress exposure and 10 extremely preterm neonates with no known prenatal stress exposure. Standard resting-state functional magnetic resonance imaging and seed connectivity methods are used. When compared to term controls, very preterm neonates show significantly reduced connectivity between the amygdala and the thalamus, the hypothalamus, the brainstem, and the insula (p < 0.05). Similarly, when compared to extremely preterm neonates without exposure to prenatal stress, extremely preterm neonates with exposure to prenatal stress show significantly less connectivity between the left amygdala and the thalamus, the hypothalamus, and the peristriate cortex (p < 0.05). Exploratory analysis of the combined cohorts suggests additive effects of prenatal stress on alterations in amygdala connectivity associated with preterm birth. Functional connectivity from the amygdala to other subcortical regions is decreased in preterm neonates compared to term controls. In addition, these data, for the first time, suggest that prenatal stress exposure amplifies these decreases.
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Affiliation(s)
- Dustin Scheinost
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, United States
| | - Soo Hyun Kwon
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, United States
| | - Cheryl Lacadie
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, United States
| | - Gordon Sze
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, United States
| | - Rajita Sinha
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, United States
- Department of Child Study, Yale School of Medicine, New Haven, CT, United States
- Department of Neuroscience, Yale School of Medicine, New Haven, CT, United States
| | - R. Todd Constable
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, United States
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT, United States
| | - Laura R. Ment
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, United States
- Department of Neurology, Yale School of Medicine, New Haven, CT, United States
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36
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Campus P, Maiolati M, Orsini C, Cabib S. Altered consolidation of extinction-like inhibitory learning in genotype-specific dysfunctional coping fostered by chronic stress in mice. Behav Brain Res 2016; 315:23-35. [PMID: 27506654 DOI: 10.1016/j.bbr.2016.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 08/02/2016] [Accepted: 08/06/2016] [Indexed: 01/02/2023]
Abstract
Genetic and stress-related factors interact to foster mental disorders, possibly through dysfunctional learning. In a previous study we reported that a temporary experience of reduced food availability increases forced swim (FS)-induced helplessness tested 14days after a first experience in mice of the standard inbred C57BL/6(B6) strain but reduces it in mice of the genetically unrelated DBA/2J (D2) strain. Because persistence of FS-induced helplessness influences adaptive coping with stress challenge and involve learning processes the present study tested whether the behavioral effects of restricted feeding involved altered consolidation of FS-related learning. First, we demonstrated that restricted feeding does not influence behavior expressed on the first FS experience, supporting a specific effect on persistence rather then development of helplessness. Second, we found that FS-induced c-fos expression in the infralimbic cortex (IL) was selectively enhanced in food-restricted (FR) B6 mice and reduced in FR D2 mice, supporting opposite alterations of consolidation processes involving this brain area. Third, we demonstrated that immediate post-FS inactivation of IL prevents 24h retention of acquired helplessness by continuously free-fed mice of both strains, indicating the requirement of a functioning IL for consolidation of FS-related learning in either mouse strain. Finally, in line with the known role of IL in consolidation of extinction memories, we found that restricted feeding selectively facilitated 24h retention of an acquired extinction in B6 mice whereas impairing it in D2 mice. These findings support the conclusion that an experience of reduced food availability strain-specifically affects persistence of newly acquired passive coping strategies by altering consolidation of extinction-like inhibitory learning.
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MESH Headings
- Adaptation, Psychological/drug effects
- Adaptation, Psychological/physiology
- Analysis of Variance
- Animals
- Brain/drug effects
- Brain/metabolism
- Conditioning, Operant/drug effects
- Disease Models, Animal
- Escape Reaction/physiology
- Extinction, Psychological/drug effects
- Extinction, Psychological/physiology
- GABA-A Receptor Agonists/pharmacology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Inbred DBA
- Muscimol/pharmacology
- Proto-Oncogene Proteins c-fos/metabolism
- Species Specificity
- Stress, Psychological/complications
- Stress, Psychological/pathology
- Swimming
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Affiliation(s)
- P Campus
- Department of Psychology, Center D. Bovet, Sapienza University of Rome, Rome, Italy; Fondazione Santa Lucia, IRCCS, Rome, Italy
| | - M Maiolati
- Department of Psychology, Center D. Bovet, Sapienza University of Rome, Rome, Italy
| | - C Orsini
- Department of Psychology, Center D. Bovet, Sapienza University of Rome, Rome, Italy; Fondazione Santa Lucia, IRCCS, Rome, Italy
| | - S Cabib
- Department of Psychology, Center D. Bovet, Sapienza University of Rome, Rome, Italy; Fondazione Santa Lucia, IRCCS, Rome, Italy.
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Campus P, Accoto A, Maiolati M, Latagliata C, Orsini C. Role of prefrontal 5-HT in the strain-dependent variation in sign-tracking behavior of C57BL/6 and DBA/2 mice. Psychopharmacology (Berl) 2016; 233:1157-69. [PMID: 26728892 DOI: 10.1007/s00213-015-4192-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 12/18/2015] [Indexed: 01/28/2023]
Abstract
RATIONALE The expression of sign-tracking (ST) phenotype over goal-tracking (GT) phenotype has been associated to different aspects of impulsive behavior, and depletions of brain serotonin (5-HT) have been shown to selectively increase impulsive action as well as ST. OBJECTIVES The present study aimed at testing the relationship between reduced brain 5-HT availability and expression of ST phenotype in a genetic model of individual variation in brain 5-HT functionality. Inbred DBA/2J (DBA) mice are homozygous for the allelic variant of the TPH-2 gene causing lower brain 5-HT function in comparison with C57BL/6J (C57) inbred mice. MATERIALS Young adult (10 weeks) and adult (14 weeks) C57 and DBA mice were trained in a Pavlovian conditioned approach (PCA) paradigm. Lever-directed (ST) and magazine-directed (GT) responses were measured in 12 daily conditioning sessions. In a second experiment, effect of the medial prefrontal cortex (mPFC) 5-HT depletion by the neurotoxin 5,7-dihydroxytryptamine (5,7-DHT) was assessed on acquisition of ST phenotype in adult C57 mice, according to their higher 5-HT functionality compared to DBA mice. RESULTS Young adult mice of both strains developed ST phenotype, but only adult DBA mice developed ST phenotype. 5-HT depletion in the mPFC of adult C57 mice completely changed their phenotype, as shown by their increased ST. CONCLUSIONS These findings indicate that ST phenotype can be the expression of a transitory late developmental stage and that genetic factors determine persistence of this phenotype in adulthood. These findings also support a role of 5-HT transmission in PFC in constraining development of ST phenotype.
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Affiliation(s)
- P Campus
- Department of Psychology, University of Rome "Sapienza", Roma, Italy
| | - A Accoto
- Department of Psychology, University of Rome "Sapienza", Roma, Italy
| | - M Maiolati
- Department of Psychology, University of Rome "Sapienza", Roma, Italy
| | - C Latagliata
- Fondazione Santa Lucia IRCSS, European Center for Brain Research, Rome, Italy
| | - C Orsini
- Department of Psychology, University of Rome "Sapienza", Roma, Italy. .,Center for Research in Neurobiology "Daniel Bovet", University of Rome "Sapienza", Roma, Italy. .,Fondazione Santa Lucia IRCSS, European Center for Brain Research, Rome, Italy.
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Effects of lack of microRNA-34 on the neural circuitry underlying the stress response and anxiety. Neuropharmacology 2016; 107:305-316. [PMID: 27026110 PMCID: PMC5573597 DOI: 10.1016/j.neuropharm.2016.03.044] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 03/11/2016] [Accepted: 03/25/2016] [Indexed: 01/03/2023]
Abstract
Stress-related psychiatric disorders, including anxiety, are complex diseases that have genetic, and environmental causes. Stressful experiences increase the release of prefrontal amygdala neurotransmitters, a response that is relevant to cognitive, emotional, and behavioral coping. Moreover, exposure to stress elicits anxiety-like behavior and dendritic remodeling in the amygdala. Members of the miR-34 family have been suggested to regulate synaptic plasticity and neurotransmission processes, which mediate stress-related disorders. Using mice that harbored targeted deletions of all 3 members of the miR-34-family (miR-34-TKO), we evaluated acute stress-induced basolateral amygdala (BLA)-GABAergic and medial prefrontal cortex (mpFC) aminergic outflow by intracerebral in vivo microdialysis. Moreover, we also examined fear conditioning/extinction, stress-induced anxiety, and dendritic remodeling in the BLA of stress-exposed TKO mice. We found that TKO mice showed resilience to stress-induced anxiety and facilitation in fear extinction. Accordingly, no significant increase was evident in aminergic prefrontal or amygdala GABA release, and no significant acute stress-induced amygdalar dendritic remodeling was observed in TKO mice. Differential GRM7, 5-HT2C, and CRFR1 mRNA expression was noted in the mpFC and BLA between TKO and WT mice. Our data demonstrate that the miR-34 has a critical function in regulating the behavioral and neurochemical response to acute stress and in inducing stress-related amygdala neuroplasticity.
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Gross M, Pinhasov A. Chronic mild stress in submissive mice: Marked polydipsia and social avoidance without hedonic deficit in the sucrose preference test. Behav Brain Res 2016; 298:25-34. [DOI: 10.1016/j.bbr.2015.10.049] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 10/20/2015] [Accepted: 10/25/2015] [Indexed: 12/15/2022]
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Schipper P, Lopresto D, Reintjes RJ, Joosten J, Henckens MJAG, Kozicz T, Homberg JR. Improved Stress Control in Serotonin Transporter Knockout Rats: Involvement of the Prefrontal Cortex and Dorsal Raphe Nucleus. ACS Chem Neurosci 2015; 6:1143-50. [PMID: 26132384 DOI: 10.1021/acschemneuro.5b00126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Variations in serotonin transporter (5-HTT) expression have been associated with altered sensitivity to stress. Since controllability is known to alter the impact of a stressor through differential activation of the medial prefrontal cortex (mPFC) and dorsal raphe nucleus (DRN), and that these regions are functionally affected by genetic 5-HTT down-regulation, we hypothesized that 5-HTT expression modulates the effect of controllability on stressor impact and coping. Here, we investigated the effects of a signaled stress controllability task or a yoked uncontrollable stressor on behavioral responding and mPFC and DRN activation. 5-HTT(-/-) rats proved better capable of acquiring the active avoidance task than 5-HTT(+/+) animals. Controllability determined DRN activation in 5-HTT(+/+), but not 5-HTT(-/-), rats, whereas controllability-related activation of the mPFC was independent of genotype. These findings suggest that serotonergic activation in the DRN is involved in stress coping in a 5-HTT expression dependent manner, whereas mPFC activation seems to be implicated in control over stress independently of 5-HTT expression. We speculate that alterations in serotonergic feedback in the DRN might be a potential mechanism driving this differential stress coping.
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Affiliation(s)
- Pieter Schipper
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Dora Lopresto
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Roy J. Reintjes
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Joep Joosten
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Marloes J. A. G. Henckens
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Tamas Kozicz
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
| | - Judith R. Homberg
- Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience, Department of Cognitive Neuroscience, and ‡Donders
Institute for Brain, Cognition and Behaviour, Centre for Neuroscience,
Department of Anatomy, Radboud University Medical Centre, Geert
Grooteplein 21, 6525 EZ Nijmegen, The Netherlands
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Del Arco A, Ronzoni G, Mora F. Hypofunction of prefrontal cortex NMDA receptors does not change stress-induced release of dopamine and noradrenaline in amygdala but disrupts aversive memory. Psychopharmacology (Berl) 2015; 232:2577-86. [PMID: 25743757 DOI: 10.1007/s00213-015-3894-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 02/12/2015] [Indexed: 01/22/2023]
Abstract
RATIONALE A dysfunction of prefrontal cortex has been associated with the exacerbated response to stress observed in schizophrenic patients and high-risk individuals to develop psychosis. The hypofunction of NMDA glutamatergic receptors induced by NMDA antagonists produces cortico-limbic hyperactivity, and this is used as an experimental model to resemble behavioural abnormalities observed in schizophrenia. OBJECTIVES The aim of the present study was to investigate whether injections of NMDA antagonists into the medial prefrontal cortex of the rat change (1) the increases of dopamine, noradrenaline and corticosterone concentrations produced by acute stress in amygdala, and (2) the acquisition of aversive memory related to a stressful event. METHODS Male Wistar rats were implanted with guide cannulae to perform microdialysis and bilateral microinjections (0.5 μl/side) of the NMDA antagonist 3-[(R)-2-carboxypiperazin-4-yl]-propyl-1-phophonic acid (CPP) (25 and 100 ng). Prefrontal injections were performed 60 min before restraint stress in microdialysis experiments, or training (footshock; 0.6 mA, 2 s) in inhibitory avoidance test. Retention latency was evaluated 24 h after training as an index of aversive memory. RESULTS Acute stress increased amygdala dialysate concentrations of dopamine (160% of baseline), noradrenaline (145% of baseline) and corticosterone (170% of baseline). Prefrontal injections of CPP did not change the increases of dopamine, noradrenaline or corticosterone produced by stress. In contrast, CPP significantly reduced the retention latency in the inhibitory avoidance test. CONCLUSIONS These results suggest that the hypofunction of prefrontal NMDA receptors does not change the sensitivity to acute stress of dopamine and noradrenaline projections to amygdala but impairs the acquisition of aversive memory.
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Affiliation(s)
- Alberto Del Arco
- Department of Physiology, Faculty of Medicine, Universidad Complutense, Avda. Complutense s/n, 28040, Madrid, Spain,
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Andolina D, Puglisi-Allegra S, Ventura R. Strain-dependent differences in corticolimbic processing of aversive or rewarding stimuli. Front Syst Neurosci 2015; 8:207. [PMID: 25698940 PMCID: PMC4316691 DOI: 10.3389/fnsys.2014.00207] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 10/02/2014] [Indexed: 11/13/2022] Open
Abstract
Aberrations in the elaboration of both aversive and rewarding stimuli characterize several psychopathologies including anxiety, depression and addiction. Several studies suggest that different neurotrasmitters, within the corticolimbic system, are critically involved in the processing of positive and negative stimuli. Individual differences in this system, depending on genotype, have been shown to act as a liability factor for different psychopathologies. Inbred mouse strains are commonly used in preclinical studies of normal and pathological behaviors. In particular, C57BL/6J (C57) and DBA/2J (DBA) strains have permitted to disclose the impact of different genetic backgrounds over the corticolimbic system functions. Here, we summarize the main findings collected over the years in our laboratory, showing how the genetic background plays a critical role in modulating amminergic and GABAergic neurotransmission in prefrontal-accumbal-amygdala system response to different rewarding and aversive experiences, as well as to stress response. Finally, we propose a top-down model for the response to rewarding and aversive stimuli in which amminergic transmission in prefrontal cortex (PFC) controls accumbal and amygdala neurotransmitter response.
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Affiliation(s)
- Diego Andolina
- Dipartimento di Scienze Cliniche Applicate e Biotecnologie, Università degli Studi dell'Aquila L'Aquila, Italy ; Santa Lucia Foundation Rome, Italy
| | - Stefano Puglisi-Allegra
- Santa Lucia Foundation Rome, Italy ; Dipartimento di Psicologia and Centro 'Daniel Bovet', Sapienza Università di Roma Rome, Italy
| | - Rossella Ventura
- Santa Lucia Foundation Rome, Italy ; Dipartimento di Psicologia and Centro 'Daniel Bovet', Sapienza Università di Roma Rome, Italy
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43
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Campus P, Colelli V, Orsini C, Sarra D, Cabib S. Evidence for the involvement of extinction-associated inhibitory learning in the forced swimming test. Behav Brain Res 2015; 278:348-55. [DOI: 10.1016/j.bbr.2014.10.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/02/2014] [Accepted: 10/08/2014] [Indexed: 01/22/2023]
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Andolina D, Maran D, Viscomi MT, Puglisi-Allegra S. Strain-dependent variations in stress coping behavior are mediated by a 5-HT/GABA interaction within the prefrontal corticolimbic system. Int J Neuropsychopharmacol 2015; 18:pyu074. [PMID: 25522413 PMCID: PMC4360254 DOI: 10.1093/ijnp/pyu074] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Serotonin and γ-aminobutyric acid (GABA) transmission is crucial in coping strategies. METHODS Here, using mice from 2 inbred strains widely exploited in behavioral neurochemistry, we investigated whether serotonin transmission in medial prefrontal cortex and GABA in basolateral amygdala determine strain-dependent liability to stress response and differences in coping. RESULTS C57BL/6J mice displayed greater immobility in the forced swimming test, higher serotonin outflow in medial prefrontal cortex, higher GABA outflow in basolateral amygdala induced by stress, and higher serotonin 1A receptor levels in medial prefrontal cortex accompanied by lower GABAb receptor levels in basolateral amygdala than DBA/2J mice. In assessing whether serotonin in medial prefrontal cortex determines GABA functioning in response to stress and passive coping behavior in C57BL/6J and DBA/2J mice, we observed that selective prefrontal serotonin depletion in C57BL/6J and DBA/2J reduced stress-induced GABA outflow in basolateral amygdala and immobility in the forced swimming test. CONCLUSIONS These results show that strain-dependent prefrontal corticolimbic serotonin/GABA regulation determines the strain differences in stress-coping behavior in the forced swimming test and point to a role of a specific neuronal system in genetic susceptibility to stress that opens up new prospects for innovative therapies for stress disorders.
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Affiliation(s)
- Diego Andolina
- Santa Lucia Foundation, Rome, Italy (Drs Andolina, Viscomi, and Puglisi-Allegra); Dipartimento di Scienze Cliniche Applicate e Biotecnologie, Universita` degli Studi dell'Aquila, Via Vetoio, L'Aquila, Italy (Dr Andolina); Dipartimento di Psicologia and Centro 'Daniel Bovet,' Sapienza Università di Roma, Rome, Italy (Drs Maran and Puglisi-Allegra).
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Shirazi SN, Friedman AR, Kaufer D, Sakhai SA. Glucocorticoids and the Brain: Neural Mechanisms Regulating the Stress Response. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015. [DOI: 10.1007/978-1-4939-2895-8_10] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Medial prefrontal cortex serotonergic and GABAergic mechanisms modulate the expression of contextual fear: Intratelencephalic pathways and differential involvement of cortical subregions. Neuroscience 2015; 284:988-997. [DOI: 10.1016/j.neuroscience.2014.11.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/02/2014] [Accepted: 11/02/2014] [Indexed: 11/22/2022]
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47
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Borsoi M, Antonio CB, Müller LG, Viana AF, Hertzfeldt V, Lunardi PS, Zanotto C, Nardin P, Ravazzolo AP, Rates SMK, Gonçalves CA. Repeated forced swimming impairs prepulse inhibition and alters brain-derived neurotrophic factor and astroglial parameters in rats. Pharmacol Biochem Behav 2015; 128:50-61. [DOI: 10.1016/j.pbb.2014.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 11/12/2014] [Accepted: 11/15/2014] [Indexed: 11/26/2022]
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Demenescu LR, Stan A, Kortekaas R, van der Wee NJA, Veltman DJ, Aleman A. On the connection between level of education and the neural circuitry of emotion perception. Front Hum Neurosci 2014; 8:866. [PMID: 25386133 PMCID: PMC4209829 DOI: 10.3389/fnhum.2014.00866] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 10/07/2014] [Indexed: 11/13/2022] Open
Abstract
Through education, a social group transmits accumulated knowledge, skills, customs, and values to its members. So far, to the best of our knowledge, the association between educational attainment and neural correlates of emotion processing has been left unexplored. In a retrospective analysis of The Netherlands Study of Depression and Anxiety (NESDA) functional magnetic resonance imaging (fMRI) study, we compared two groups of fourteen healthy volunteers with intermediate and high educational attainment, matched for age and gender. The data concerned event-related fMRI of brain activation during perception of facial emotional expressions. The region of interest (ROI) analysis showed stronger right amygdala activation to facial expressions in participants with lower relative to higher educational attainment (HE). The psychophysiological interaction analysis revealed that participants with HE exhibited stronger right amygdala—right insula connectivity during perception of emotional and neutral facial expressions. This exploratory study suggests the relevance of educational attainment on the neural mechanism of facial expressions processing.
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Affiliation(s)
- Liliana R Demenescu
- Department of Psychiatry and Psychotherapy, University Hospital Aachen, RWTH Aachen Aachen, Germany ; Department of Neuroscience, University Medical Center Groningen, University of Groningen Groningen, Netherlands ; Clinical Affective Neuroimaging Laboratory (CANLAB), Leibniz-Institute for Neurobiology and Otto-von-Guericke-University Magdeburg, Germany
| | - Adrian Stan
- Laboratoire des Solides Irradiés, École Polytechnique, Palaiseau France
| | - Rudie Kortekaas
- Department of Neuroscience, University Medical Center Groningen, University of Groningen Groningen, Netherlands
| | - Nic J A van der Wee
- Department of Psychiatry, University Medical Center Leiden Leiden, Netherlands
| | - Dick J Veltman
- Department of Psychiatry, VU University Medical Center Amsterdam, Netherlands
| | - André Aleman
- Department of Neuroscience, University Medical Center Groningen, University of Groningen Groningen, Netherlands ; Faculty of Psychology, University of Groningen Groningen, Netherlands
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Puglisi-Allegra S, Andolina D. Serotonin and stress coping. Behav Brain Res 2014; 277:58-67. [PMID: 25108244 DOI: 10.1016/j.bbr.2014.07.052] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 07/28/2014] [Accepted: 07/29/2014] [Indexed: 12/25/2022]
Abstract
Coping is the necessary outcome of any stressful situation and the major determinant of stress resilience. Coping strategies can be divided into two broad categories, based on the presence (active) or absence (passive) of attempts to act upon the stressor. The role of brain serotonin (5-hydroxytryptamine, 5-HT) in coping behavior that is emerging from studies in animals and humans is the subject of this article. We have focused attention on studies that consider the coping behavior exhibited when the individual is faced with a new stressful experience. Coping styles characterize different species with different evolutionary histories, from fishes to mammals, and evidence shows that serotonin transmission in the central nervous system, with differences in transporter, receptor types and hormone or neurotransmitter influences is critical in determining coping behavior. Moreover, a major role of environmental challenges throughout the lifespan affects brain systems that control coping outcomes through 5-HT transmission. In particular early experiences, for their long-term effects in adulthood, and social experiences throughout the life span, for the effects on serotonin functioning, received attention in preclinical research because of their parallelism in humans and animals. Based on growing evidence pointing to a medial prefrontal cortex-amygdala system in mediating adaptive and maladaptive stress responses, we propose a brain circuit in which serotonin neurons in the dorsal raphe depending on the CRF (corticotropin releasing factor) regulatory action engage a prefrontal cortical-amygdala pathway through 5-HT1A receptors, GABA and Glutamate to moderate coping behavior.
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Affiliation(s)
- Stefano Puglisi-Allegra
- Dipartimento di Psicologia and Centro "Daniel Bovet," Sapienza Università di Roma, via dei Marsi 78, 00185 Rome, Italy; Fondazione Santa Lucia, IRCCS, via del Fosso di Fiorano 65, 00143 Rome, Italy.
| | - Diego Andolina
- Fondazione Santa Lucia, IRCCS, via del Fosso di Fiorano 65, 00143 Rome, Italy; Dipartimento di scienze cliniche applicate e biotecnologie Università degli Studi dell'Aquila, via Vetoio, 67010 Coppito, L'Aquila, Italy
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Vanneste S, Joos K, Langguth B, To WT, De Ridder D. Neuronal correlates of maladaptive coping: an EEG-study in tinnitus patients. PLoS One 2014; 9:e88253. [PMID: 24558383 PMCID: PMC3928191 DOI: 10.1371/journal.pone.0088253] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 01/07/2014] [Indexed: 02/05/2023] Open
Abstract
Here we aimed to investigate the neuronal correlates of different coping styles in patients suffering from chronic tinnitus. Adaptive and maladaptive coping styles were determined in 85 tinnitus patients. Based on resting state EEG recordings, coping related differences in brain activity and connectivity were found. Maladaptive coping behavior was related to increases in subjective tinnitus loudness and distress, higher tinnitus severity and higher depression scores. EEG recordings demonstrated increased alpha activity over the left dorsolateral prefrontal cortex (DLPFC) and subgenual anterior cingulate cortex (sgACC) as well as increased connectivity in the default (i.e. resting state) network in tinnitus patients with a maladaptive coping style. Correlation analysis revealed that the changes in the DLPFC correlate primarily with maladaptive coping behavior, whereas the changes in the sgACC correlate with tinnitus severity and depression. Our findings are in line with previous research in the field of depression that during resting state a alpha band hyperconnectivity exists within the default network for patients who use a maladaptive coping style, with the sgACC as the dysfunctional node and that the strength of the connectivity is related to focusing on negative mood and catastrophizing about the consequences of tinnitus.
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Affiliation(s)
- Sven Vanneste
- Department of Translational Neuroscience, Faculty of Medicine, University of Antwerp, Antwerp, Belgium
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas, United States of America
| | - Kathleen Joos
- Department of Translational Neuroscience, Faculty of Medicine, University of Antwerp, Antwerp, Belgium
| | - Berthold Langguth
- Department of Psychiatry and Psychotherapy, University Regensburg, Regensburg, Germany
| | - Wing Ting To
- Faculty of Social Work and Welfare Studies, University College Ghent, Ghent, Belgium
| | - Dirk De Ridder
- Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
- BRAIN, Sint Augustinus Hospital, Antwerp, Belgium
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