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Rosero-Pahi M, Andoh J, Shields GS, Acosta-Ortiz A, Serrano-Gomez S, Slavich GM. Cumulative lifetime stressor exposure impairs stimulus-response but not contextual learning. Sci Rep 2024; 14:13080. [PMID: 38844465 PMCID: PMC11156921 DOI: 10.1038/s41598-024-62595-x] [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: 11/28/2023] [Accepted: 05/20/2024] [Indexed: 06/09/2024] Open
Abstract
Greater exposure to stressors over the life course is believed to promote striatum-dependent over hippocampus-dependent learning and memory processes under stressful conditions. However, little research in this context has actually assessed lifetime stressor exposure and, moreover, it remains unknown whether greater cumulative lifetime stressor exposure exerts comparable effects on striatum-dependent learning and hippocampus-dependent learning in non-stressful contexts. To investigate this issue, we used the Stress and Adversity Inventory for Adults (Adult STRAIN) and Multicued Search Task to investigate the relation between cumulative lifetime stressor exposure and striatum-dependent stimulus-response learning and hippocampus-dependent contextual learning under non-stressful conditions among healthcare professionals (N = 205; 157 females, 48 males; Age: M = 34.23, SD 9.3, range 20-59 years). Individuals with moderate, but not low, cumulative lifetime stressor exposure exhibited impaired learning for stimulus-response associations. In contrast, learning for context associations was unrelated to participants' lifetime stressor exposure profiles. These results thus provide first evidence that cumulative lifetime stressor exposure may have negative consequences on human striatum-dependent stimulus-response learning under non-stressful environmental conditions.
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Affiliation(s)
- Mario Rosero-Pahi
- Cognitive and Translational Neuroscience Lab, Faculty of Health Sciences, Universidad Autónoma de Bucaramanga, Bucaramanga, Santander, Colombia.
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
| | - Jamila Andoh
- Department of Psychiatry and Psychotherapy, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Grant S Shields
- Department of Psychological Science, University of Arkansas, Fayetteville, AR, USA
| | - Alida Acosta-Ortiz
- Cognitive and Translational Neuroscience Lab, Faculty of Health Sciences, Universidad Autónoma de Bucaramanga, Bucaramanga, Santander, Colombia
| | - Sergio Serrano-Gomez
- Cognitive and Translational Neuroscience Lab, Faculty of Health Sciences, Universidad Autónoma de Bucaramanga, Bucaramanga, Santander, Colombia
| | - George M Slavich
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
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2
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Lai NHY, Mohd Zahir IA, Liew AKY, Ogawa S, Parhar I, Soga T. Teleosts as behaviour test models for social stress. Front Behav Neurosci 2023; 17:1205175. [PMID: 37744951 PMCID: PMC10512554 DOI: 10.3389/fnbeh.2023.1205175] [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: 04/26/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Stress is an important aspect of our everyday life and exposure to it is an unavoidable occurrence. In humans, this can come in the form of social stress or physical stress from an injury. Studies in animal models have helped researchers to understand the body's adaptive response to stress in human. Notably, the use of behavioural tests in animal models plays a pivotal role in understanding the neural, endocrine and behavioural changes induced by social stress. Under socially stressed conditions, behavioural parameters are often measured physiological and molecular parameters as changes in behaviour are direct responses to stress and are easily assessed by behavioural tests. Throughout the past few decades, the rodent model has been used as a well-established animal model for stress and behavioural changes. Recently, more attention has been drawn towards using fish as an animal model. Common fish models such as zebrafish, medaka, and African cichlids have the advantage of a higher rate of reproduction, easier handling techniques, sociability and most importantly, share evolutionary conserved genetic make-up, neural circuitry, neuropeptide molecular structure and function with mammalian species. In fact, some fish species exhibit a clear diurnal or seasonal rhythmicity in their stress response, similar to humans, as opposed to rodents. Various social stress models have been established in fish including but not limited to chronic social defeat stress, social stress avoidance, and social stress-related decision-making. The huge variety of behavioural patterns in teleost also aids in the study of more behavioural phenotypes than the mammalian species. In this review, we focus on the use of fish models as alternative models to study the effects of stress on different types of behaviours. Finally, fish behavioural tests against the typical mammalian model-based behavioural test are compared and discussed for their viability.
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Affiliation(s)
| | | | | | | | | | - Tomoko Soga
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
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3
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Kim EJ, Kim JJ. Neurocognitive effects of stress: a metaparadigm perspective. Mol Psychiatry 2023; 28:2750-2763. [PMID: 36759545 PMCID: PMC9909677 DOI: 10.1038/s41380-023-01986-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/11/2023]
Abstract
Stressful experiences, both physical and psychological, that are overwhelming (i.e., inescapable and unpredictable), can measurably affect subsequent neuronal properties and cognitive functioning of the hippocampus. At the cellular level, stress has been shown to alter hippocampal synaptic plasticity, spike and local field potential activity, dendritic morphology, neurogenesis, and neurodegeneration. At the behavioral level, stress has been found to impair learning and memory for declarative (or explicit) tasks that are based on cognition, such as verbal recall memory in humans and spatial memory in rodents, while facilitating those that are based on emotion, such as differential fear conditioning in humans and contextual fear conditioning in rodents. These vertically related alterations in the hippocampus, procedurally observed after subjects have undergone stress, are generally believed to be mediated by recurrently elevated circulating hypothalamic-pituitary-adrenal (HPA) axis effector hormones, glucocorticoids, directly acting on hippocampal neurons densely populated with corticosteroid receptors. The main purposes of this review are to (i) provide a synopsis of the neurocognitive effects of stress in a historical context that led to the contemporary HPA axis dogma of basic and translational stress research, (ii) critically reappraise the necessity and sufficiency of the glucocorticoid hypothesis of stress, and (iii) suggest an alternative metaparadigm approach to monitor and manipulate the progression of stress effects at the neural coding level. Real-time analyses can reveal neural activity markers of stress in the hippocampus that can be used to extrapolate neurocognitive effects across a range of stress paradigms (i.e., resolve scaling and dichotomous memory effects issues) and understand individual differences, thereby providing a novel neurophysiological scaffold for advancing future stress research.
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Affiliation(s)
- Eun Joo Kim
- Department of Psychology, University of Washington, Seattle, WA, 98195, USA
- School of Psychology, Korea University, Seoul, 02841, Republic of Korea
| | - Jeansok J Kim
- Department of Psychology, University of Washington, Seattle, WA, 98195, USA.
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García-Gómez L, Castillo-Fernández I, Perez-Villalba A. In the pursuit of new social neurons. Neurogenesis and social behavior in mice: A systematic review. Front Cell Dev Biol 2022; 10:1011657. [PMID: 36407114 PMCID: PMC9672322 DOI: 10.3389/fcell.2022.1011657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Social behaviors have become more relevant to our understanding of the human nervous system because relationships with our peers may require and modulate adult neurogenesis. Here, we review the pieces of evidence we have to date for the divergence of social behaviors in mice by modulation of adult neurogenesis or if social behaviors and the social environment can drive a change in neurogenic processes. Social recognition and memory are deeply affected by antimitotic drugs and irradiation, while NSC transgenic mice may run with lower levels of social discrimination. Interestingly, social living conditions can create a big impact on neurogenesis. Social isolation and social defeat reduce the number of new neurons, while social dominance and enrichment of the social environment increase their number. These new “social neurons” trigger functional modifications with amazing transgenerational effects. All of these suggest that we are facing two bidirectional intertwined variables, and the great challenge now is to understand the cellular and genetic mechanisms that allow this relationship to be used therapeutically.
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5
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Picard K, Bisht K, Poggini S, Garofalo S, Golia MT, Basilico B, Abdallah F, Ciano Albanese N, Amrein I, Vernoux N, Sharma K, Hui CW, C Savage J, Limatola C, Ragozzino D, Maggi L, Branchi I, Tremblay MÈ. Microglial-glucocorticoid receptor depletion alters the response of hippocampal microglia and neurons in a chronic unpredictable mild stress paradigm in female mice. Brain Behav Immun 2021; 97:423-439. [PMID: 34343616 DOI: 10.1016/j.bbi.2021.07.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 07/23/2021] [Accepted: 07/28/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic psychological stress is one of the most important triggers and environmental risk factors for neuropsychiatric disorders. Chronic stress can influence all organs via the secretion of stress hormones, including glucocorticoids by the adrenal glands, which coordinate the stress response across the body. In the brain, glucocorticoid receptors (GR) are expressed by various cell types including microglia, which are its resident immune cells regulating stress-induced inflammatory processes. To study the roles of microglial GR under normal homeostatic conditions and following chronic stress, we generated a mouse model in which the GR gene is depleted in microglia specifically at adulthood to prevent developmental confounds. We first confirmed that microglia were depleted in GR in our model in males and females among the cingulate cortex and the hippocampus, both stress-sensitive brain regions. Then, cohorts of microglial-GR depleted and wild-type (WT) adult female mice were housed for 3 weeks in a standard or stressful condition, using a chronic unpredictable mild stress (CUMS) paradigm. CUMS induced stress-related behavior in both microglial-GR depleted and WT animals as demonstrated by a decrease of both saccharine preference and progressive ratio breakpoint. Nevertheless, the hippocampal microglial and neural mechanisms underlying the adaptation to stress occurred differently between the two genotypes. Upon CUMS exposure, microglial morphology was altered in the WT controls, without any apparent effect in microglial-GR depleted mice. Furthermore, in the standard environment condition, GR depleted-microglia showed increased expression of pro-inflammatory genes, and genes involved in microglial homeostatic functions (such as Trem2, Cx3cr1 and Mertk). On the contrary, in CUMS condition, GR depleted-microglia showed reduced expression levels of pro-inflammatory genes and increased neuroprotective as well as anti-inflammatory genes compared to WT-microglia. Moreover, in microglial-GR depleted mice, but not in WT mice, CUMS led to a significant reduction of CA1 long-term potentiation and paired-pulse ratio. Lastly, differences in adult hippocampal neurogenesis were observed between the genotypes during normal homeostatic conditions, with microglial-GR deficiency increasing the formation of newborn neurons in the dentate gyrus subgranular zone independently from stress exposure. Together, these findings indicate that, although the deletion of microglial GR did not prevent the animal's ability to respond to stress, it contributed to modulating hippocampal functions in both standard and stressful conditions, notably by shaping the microglial response to chronic stress.
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Affiliation(s)
- Katherine Picard
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Molecular Medicine Department, Université Laval, Québec City, QC, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC, Canada
| | - Kanchan Bisht
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Silvia Poggini
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Rome, Italy
| | - Stefano Garofalo
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy
| | - Maria Teresa Golia
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy
| | - Bernadette Basilico
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy; Institute of Science and Technology (IST) Austria, Klosterneuburg, Austria
| | - Fatima Abdallah
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Rome, Italy
| | - Naomi Ciano Albanese
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Rome, Italy; Institute of Science and Technology (IST) Austria, Klosterneuburg, Austria
| | - Irmgard Amrein
- Functional Neuroanatomy, Institute of Anatomy, University of Zürich, Zurich, Switzerland
| | - Nathalie Vernoux
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Kaushik Sharma
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Chin Wai Hui
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Julie C Savage
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Cristina Limatola
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy; IRCCS Neuromed, Pozzilli, Italy
| | - Davide Ragozzino
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy
| | - Laura Maggi
- Department of Physiology and Pharmacology, Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza University of Rome, Italy
| | - Igor Branchi
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Rome, Italy
| | - Marie-Ève Tremblay
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Molecular Medicine Department, Université Laval, Québec City, QC, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC, Canada; The Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, BC, Canada.
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6
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Tzu-Feng Wang TF, Tsai SF, Zhao ZW, Shih MMC, Wang CY, Yang TT, Kuo YM. Exercise-induced increases of corticosterone contribute to exercise-enhanced adult hippocampal neurogenesis in mice. CHINESE J PHYSIOL 2021; 64:186-193. [PMID: 34472449 DOI: 10.4103/cjp.cjp_39_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Adult hippocampal neurogenesis (AHN) is suppressed by chronic stress. The negative effect of stress is mainly attributed to increased levels of stress hormones (e.g. glucocorticoids, GCs). Exercise enhances AHN, yet it also stimulates GC secretion. To delineate the paradoxical role of GCs, we took the advantage of a unique mouse strain (L/L) which exhibits an inert response to stress-induced secretion of GCs to study the role of GCs in exercise-induced AHN. Our results showed that basal corticosterone (CORT), the main GCs in rodents, levels were similar between the L/L mice and wild-type (WT) mice. However, levels of CORT in the L/L mice were barely altered and significantly lower than those of the WT mice during treadmill running (TR). AHN was enhanced by 4 weeks of TR in the WT mice, but not L/L mice. WT mice that received daily injection of CORT to evoke serum CORT levels similar to those during exercise for 4 weeks did not affect AHN, whereas injection with large amount of CORT inhibited AHN. Taken together, our results indicated that exercise-related elevation of CORT participates in exercise-enhanced AHN. CORT alone is not sufficient to elicit AHN and may inhibit AHN if the levels are high.
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Affiliation(s)
- Tzu-Feng Tzu-Feng Wang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei; Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sheng-Feng Tsai
- Department of Cell Biology and Anatomy, College of Medicine; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Zi-Wei Zhao
- Department of Cell Biology and Anatomy, College of Medicine; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | - Chia-Yih Wang
- Department of Cell Biology and Anatomy, College of Medicine; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ting-Ting Yang
- Department of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan
| | - Yu-Min Kuo
- Department of Cell Biology and Anatomy, College of Medicine; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Packard MG, Gadberry T, Goodman J. Neural systems and the emotion-memory link. Neurobiol Learn Mem 2021; 185:107503. [PMID: 34418544 DOI: 10.1016/j.nlm.2021.107503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 10/20/2022]
Abstract
The present brief review for this Special Issue summarizes some of the original research on the emotional modulation of memory. The review begins by highlighting the pioneering research from James L. McGaugh and colleagues demonstrating modulatory effects of post-training drug administration on memory consolidation, in particular the stress hormone epinephrine. The subsequent discovery of a critical role for the basolateral amygdala in emotional modulation of memory is described. Within the context of a multiple systems approach to memory focusing on selective roles for the hippocampus and dorsolateral striatum in cognitive and habit memory, the original studies indicating that robust emotional arousal can bias animals and humans toward the predominant use of habit memory are reviewed. This effect of emotional arousal on the relative use of multiple memory systems depends on a modulatory role of the basolateral amygdala. Finally, we briefly consider how an emotion-induced enhancement of dorsolateral striatal-dependent memory may be relevant to understanding maladaptive habitual behaviors in certain human psychopathologies.
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Affiliation(s)
- Mark G Packard
- Department of Psychological and Brain Sciences, Texas A&M University, United States.
| | - Ty Gadberry
- Department of Psychological and Brain Sciences, Texas A&M University, United States
| | - Jarid Goodman
- Department of Psychology, Delaware State University, United States
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Xiao Z, Cao Z, Yang J, Jia Z, Du Y, Sun G, Lu Y, Pei L. Baicalin promotes hippocampal neurogenesis via the Wnt/β-catenin pathway in a chronic unpredictable mild stress-induced mouse model of depression. Biochem Pharmacol 2021; 190:114594. [PMID: 33964281 DOI: 10.1016/j.bcp.2021.114594] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/03/2021] [Accepted: 05/03/2021] [Indexed: 11/29/2022]
Abstract
Hippocampal neurogenesis is known to be related to depressive symptoms. Increasing evidence indicates that Wnt/β-catenin signaling regulates multiple aspects of adult hippocampal neurogenesis. Baicalin is a major flavonoid compound with multiple pharmacological effects such as anti-inflammatory, anti-apoptotic, and neuroprotective effects. The current study aimed to explore the antidepressant effects of baicalin and its possible molecular mechanisms affecting hippocampal neurogenesis via the regulation of the Wnt/β-catenin signaling pathway. A chronic mild unpredictable stress (CUMS) model of depression was used in the study. The CUMS-induced mice were treated with baicalin (50 and 100 mg/kg) for 21 days, orally, and the fluoxetine was used as positive control drug. The results indicated that baicalin alleviated CUMS-induced depression-like behaviour, and improved the nerve cells' survival of the hippocampal dentate gyrus (DG) in CUMS-induced depression of model mice and increased Ki-67- and doublecortin (DCX)-positive cells to restore CUMS-induced suppression of hippocampal neurogenesis. The related proteins in the Wnt/β-catenin signaling pathway, which declined in the CUMS-induced depression model of mice, were upregulated after baicalin treatment, including Wingless3a (Wnt3a), dishevelled2 (DVL2), and β-catenin. Further study found that the phosphorylation rate of glycogen synthase kinase-3β (GSK3β) and β-catenin nuclear translocation increased, as the levels of the β-catenin target genes cyclinD1, c-myc, NeuroD1, and Ngn2 upregulated after baicalin treatment. In conclusion, these findings suggest that baicalin may promote hippocampal neurogenesis, thereby exerting the antidepressant effect via regulation of the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Zhigang Xiao
- Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China
| | - Zhuoqing Cao
- Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China
| | - Jiali Yang
- Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China
| | - Zhixia Jia
- Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China
| | - Yuru Du
- Neuroscience Research Center, Hebei Medical University, Shijiazhuang 050017, China
| | - Guoqiang Sun
- Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China
| | - Ye Lu
- Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China.
| | - Lin Pei
- Hebei University of Chinese Medicine, Shijiazhuang 050200, China; Hebei Province Academy of Chinese Medicine Sciences, Shijiazhuang 050031, China.
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Jung SH, Meckes JK, Schipma MJ, Lim PH, Jenz ST, Przybyl K, Wert SL, Kim S, Luo W, Gacek SA, Jankord R, Hatcher-Solis C, Redei EE. Strain Differences in Responsiveness to Repeated Restraint Stress Affect Remote Contextual Fear Memory and Blood Transcriptomics. Neuroscience 2020; 444:76-91. [PMID: 32768618 DOI: 10.1016/j.neuroscience.2020.07.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/15/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022]
Abstract
The role of stress in altering fear memory is not well understood. Since individual variations in stress reactivity exist, and stress alters fear memory, exposing individuals with differing stress-reactivity to repeated stress would affect their fear memory to various degrees. We explored this question using the average stress-reactive Fisher 344 (F344) rat strain and the Wistar-Kyoto (WKY) strain with its heightened stress-reactivity. Male F344 and WKY rats were exposed to the contextual fear conditioning (CFC) paradigm and then chronic restraint stress (CRS) or no stress (NS) was administered for two weeks before a second CFC. Both recent and reinstated fear memory were greater in F344s than WKYs, regardless of the stress status. In contrast, remote memory was attenuated only in F344s after CRS. In determining whether this strain-specific response to CRS was mirrored by transcriptomic changes in the blood, RNA sequencing was carried out. Overlapping differentially expressed genes (DEGs) between NS and CRS in the blood of F344 and WKY suggest a convergence of stress-related molecular mechanisms, independent of stress-reactivity. In contrast, DEGs unique to the F344 and the WKY stress responses are divergent in their functionality and networks, beyond that of strain differences in their non-stressed state. These results suggest that in some individuals chronic or repeated stress, different from the original fear memory-provoking stress, can attenuate prior fear memory. Furthermore, the novel blood DEGs can report on the general state of stress of the individual, or can be associated with individual variation in stress-responsiveness.
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Affiliation(s)
- Seung H Jung
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Jeanie K Meckes
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Matthew J Schipma
- NUSeq Core, Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Patrick H Lim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Sophia T Jenz
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Katherine Przybyl
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stephanie L Wert
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Sarah Kim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Wendy Luo
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stephanie A Gacek
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Ryan Jankord
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Candice Hatcher-Solis
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Eva E Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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Ferragud A, Velázquez-Sánchez C, Abdullatif AA, Sabino V, Cottone P. Withdrawal from Extended, Intermittent Access to A Highly Palatable Diet Impairs Hippocampal Memory Function and Neurogenesis: Effects of Memantine. Nutrients 2020; 12:nu12051520. [PMID: 32456193 PMCID: PMC7284648 DOI: 10.3390/nu12051520] [Citation(s) in RCA: 5] [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: 04/18/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Compulsive eating can be promoted by intermittent access to palatable food and is often accompanied by cognitive deficits and reduction in hippocampal plasticity. Here, we investigated the effects of intermittent access to palatable food on hippocampal function and neurogenesis. Methods: Male Wistar rats were either fed chow for 7 days/week (Chow/Chow group), or fed chow intermittently for 5 days/week followed by a palatable diet for 2 days/week (Chow/Palatable group). Hippocampal function and neurogenesis were assessed either during withdrawal or following renewed access to palatable food. Furthermore, the ability of the uncompetitive N-methyl-d-aspartate receptor (NMDAR) antagonist memantine to prevent the diet-induced memory deficits and block the maladaptive feeding was tested. Results: Palatable food withdrawn Chow/Palatable rats showed both a weakened ability for contextual spatial processing and a bias in their preference for a “novel cue” over a “novel place,” compared to controls. They also showed reduced expression of immature neurons in the dentate gyrus of the hippocampus as well as a withdrawal-dependent decrease of proliferating cells. Memantine treatment was able both to reverse the memory deficits and to reduce the excessive intake of palatable diet and the withdrawal-induced hypophagia in food cycling rats. Conclusions: In summary, our results provide evidence that withdrawal from highly palatable food produces NMDAR-dependent deficits in hippocampal function and a reduction in hippocampal neurogenesis.
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Krontira AC, Cruceanu C, Binder EB. Glucocorticoids as Mediators of Adverse Outcomes of Prenatal Stress. Trends Neurosci 2020; 43:394-405. [PMID: 32459992 DOI: 10.1016/j.tins.2020.03.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/10/2020] [Accepted: 03/15/2020] [Indexed: 02/06/2023]
Abstract
A number of prenatal experiences are associated with adverse outcomes after birth, ranging from cardiovascular problems to psychiatric disease. Prenatal stress is associated with neurodevelopmental alterations that persist after birth and manifest at the behavioral level, for example, increased fearfulness, and at the physiological one, that is, brain structural and functional changes. Understanding the mechanisms that drive these lasting effects may help in preventing long-term negative outcomes of prenatal stress. Elevated glucocorticoid signaling in utero may be one of the key mediators of prenatal stress effects on the offspring. In this review, we summarize how prenatal glucocorticoids may impact the activity of the fetal hypothalamic-pituitary-adrenal (HPA) axis, disrupt neurodevelopmental processes and alter the epigenetic landscape of the fetus. We also discuss the need to take into consideration the interaction of these processes with the offspring's genetic landscape.
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Affiliation(s)
- Anthi C Krontira
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany; International Max Planck Research School for Translational Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Cristiana Cruceanu
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Elisabeth B Binder
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany.
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12
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McAllister BB, Pochakom A, Fu S, Dyck RH. Effects of social defeat stress and fluoxetine treatment on neurogenesis and behavior in mice that lack zinc transporter 3 (ZnT3) and vesicular zinc. Hippocampus 2019; 30:623-637. [DOI: 10.1002/hipo.23185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/13/2019] [Accepted: 11/29/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Brendan B. McAllister
- Department of PsychologyUniversity of Calgary Calgary Alberta Canada
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
| | - Angela Pochakom
- Department of PsychologyUniversity of Calgary Calgary Alberta Canada
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
| | - Selena Fu
- Department of PsychologyUniversity of Calgary Calgary Alberta Canada
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
| | - Richard H. Dyck
- Department of PsychologyUniversity of Calgary Calgary Alberta Canada
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
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13
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Hillerer KM, Slattery DA, Pletzer B. Neurobiological mechanisms underlying sex-related differences in stress-related disorders: Effects of neuroactive steroids on the hippocampus. Front Neuroendocrinol 2019; 55:100796. [PMID: 31580837 PMCID: PMC7115954 DOI: 10.1016/j.yfrne.2019.100796] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/19/2022]
Abstract
Men and women differ in their vulnerability to a variety of stress-related illnesses, but the underlying neurobiological mechanisms are not well understood. This is likely due to a comparative dearth of neurobiological studies that assess male and female rodents at the same time, while human neuroimaging studies often don't model sex as a variable of interest. These sex differences are often attributed to the actions of sex hormones, i.e. estrogens, progestogens and androgens. In this review, we summarize the results on sex hormone actions in the hippocampus and seek to bridge the gap between animal models and findings in humans. However, while effects of sex hormones on the hippocampus are largely consistent in animals and humans, methodological differences challenge the comparability of animal and human studies on stress effects. We summarise our current understanding of the neurobiological mechanisms that underlie sex-related differences in behavior and discuss implications for stress-related illnesses.
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Affiliation(s)
- Katharina M Hillerer
- Department of Obstetrics and Gynaecology, Salzburger Landeskrankenhaus (SALK), Paracelsus Medical University (PMU), Clinical Research Center Salzburg (CRCS), Salzburg, Austria.
| | - David A Slattery
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany
| | - Belinda Pletzer
- Department of Psychology, University of Salzburg, Salzburg, Austria; Centre for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria
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14
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Aberrant Expression of Collagen Gene Family in the Brain Regions of Male Mice with Behavioral Psychopathologies Induced by Chronic Agonistic Interactions. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7276389. [PMID: 31183373 PMCID: PMC6512038 DOI: 10.1155/2019/7276389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 03/04/2019] [Accepted: 03/27/2019] [Indexed: 11/17/2022]
Abstract
Chronic agonistic interactions promote the development of experimental psychopathologies in animals: a depression-like state in chronically defeated mice and the pathology of aggressive behavior in the mice with repeated wins. The abundant research data indicate that such psychopathological states are associated with significant molecular and cellular changes in the brain. This paper aims to study the influence of a 20-day period of agonistic interactions on the expression patterns of collagen family genes encoding the proteins which are basic components of extracellular matrix (ECM) in different brain regions of mice using the RNA-Seq database. Most of differentially expressed collagen genes were shown to be upregulated in the hypothalamus and striatum of chronically aggressive and defeated mice and in the hippocampus of defeated mice, whereas downregulation of collagen genes was demonstrated in the ventral tegmental areas in both experimental groups. Aberrant expression of collagen genes induced by chronic agonistic interactions may be indicative of specific ECM defects in the brain regions of mice with alternative social experience. This is the first study demonstrating remodeling of ECM under the development of experimental disorders.
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15
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Puri D, Subramanyam D. Stress - (self) eating: Epigenetic regulation of autophagy in response to psychological stress. FEBS J 2019; 286:2447-2460. [PMID: 30927484 DOI: 10.1111/febs.14826] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/19/2019] [Accepted: 03/27/2019] [Indexed: 12/16/2022]
Abstract
Autophagy is a constitutive and cytoprotective catabolic process. Aberrations in autophagy lead to a multitude of degenerative disorders, with neurodegeneration being one of the most widely studied autophagy-related disorders. While the field has largely been focusing on the cytosolic constituents and processes of autophagy, recent studies are increasingly appreciating the role of chromatin modifications and epigenetic regulation in autophagy maintenance. Autophagy has been implicated in the regulation of neurogenesis, and disruption of neurogenesis in response to psychological stress is a proximal risk factor for development of neuropsychiatric disorders such as major depressive disorder (MDD). In this review, we will discuss the regulation of autophagy in normal neurogenesis as well as during chronic psychological stress, focusing on the epigenetic control of autophagy in these contexts, and also highlight the lacunae in our understanding of this process. The systematic study of these regulatory mechanisms will provide a novel therapeutic strategy, based on the use epigenetic regulators of autophagy to enhance neurogenesis and potentially alleviate stress-related behavioral disorders.
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Affiliation(s)
- Deepika Puri
- National Centre for Cell Science, Savitribai Phule Pune University, Pune, India
| | - Deepa Subramanyam
- National Centre for Cell Science, Savitribai Phule Pune University, Pune, India
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16
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Abstract
Adult neurogenesis continues to captivate the curiosity of the scientific community; and researchers seem to have a particular interest in identifying the functional implications of such plasticity. While the majority of research focuses on the association between adult neurogenesis and learning and memory (including spatial learning associated with hippocampal neurogenesis and olfactory discrimination associated with neurogenesis in the olfactory system), the following review will explore the link to motivated behaviors. In particular, goal-directed behaviors such as sociosexual, parental, aggressive, as well as depression- and anxiety-like behaviors and their reciprocal association to adult neurogenesis will be evaluated. The review will detail research in humans and other mammalian species. Furthermore, the potential mechanisms underlying these neurogenic alterations will be highlighted. Lastly, the review will conclude with a discussion on the functional significance of these newly generated cells in mediating goal-directed behaviors.
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Affiliation(s)
- Claudia Jorgensen
- Behavioral Science Department, Utah Valley University, Orem, Utah, USA
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17
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Babenko VN, Smagin DA, Galyamina AG, Kovalenko IL, Kudryavtseva NN. Altered Slc25 family gene expression as markers of mitochondrial dysfunction in brain regions under experimental mixed anxiety/depression-like disorder. BMC Neurosci 2018; 19:79. [PMID: 30537945 PMCID: PMC6288882 DOI: 10.1186/s12868-018-0480-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 12/04/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Development of anxiety- and depression-like states under chronic social defeat stress in mice has been shown by many experimental studies. In this article, the differentially expressed Slc25* family genes encoding mitochondrial carrier proteins were analyzed in the brain of depressive (defeated) mice versus aggressive mice winning in everyday social confrontations. The collected samples of brain regions were sequenced at JSC Genoanalytica ( http://genoanalytica.ru/ , Moscow, Russia). RESULTS Changes in the expression of the 20 Slc25* genes in the male mice were brain region- and social experience (positive or negative)-specific. In particular, most Slc25* genes were up-regulated in the hypothalamus of defeated and aggressive mice and in the hippocampus of defeated mice. In the striatum of defeated mice and in the ventral tegmental area of aggressive mice expression of mitochondrial transporter genes changed specifically. Significant correlations between expression of most Slc25* genes and mitochondrial Mrps and Mrpl genes were found in the brain regions. CONCLUSION Altered expression of the Slc25* genes may serve as a marker of mitochondrial dysfunction in brain, which accompanies the development of many neurological and psychoemotional disorders.
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Affiliation(s)
- Vladimir N Babenko
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Laboratory of Human Molecular Genetics, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
| | - Dmitry A Smagin
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Anna G Galyamina
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Irina L Kovalenko
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Natalia N Kudryavtseva
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
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18
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Jafari Z, Kolb BE, Mohajerani MH. Chronic traffic noise stress accelerates brain impairment and cognitive decline in mice. Exp Neurol 2018; 308:1-12. [PMID: 29936225 DOI: 10.1016/j.expneurol.2018.06.011] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/08/2018] [Accepted: 06/21/2018] [Indexed: 11/26/2022]
Abstract
Although traffic noise exposure is a well-known environmental pollutant whose negative health effect has been discussed in different aspects of the human life, only a few animal studies have tackled this issue as a cohort study, which is not feasible to be addressed in human studies. In addition to the deleterious impact of the daytime noise on well-being, chronic nocturnal noise can also disturb sleep and affects physical and mental health, but to date, little research has examined the neurobiological effects of light/dark cycles of traffic noise exposure. We investigated the effects of light/dark cycles and sex on the impact of chronic traffic noise exposure on mouse brain structure-function. The mice were randomly assigned to either one of two stress conditions or a control condition. Animals were exposed to traffic noise on either the light-cycle (LC) or dark-cycle (DC) for 30 days. Traffic noise exposure caused the hypothalamic-pituitary-adrenal (HPA) axis hyperactivity, anxiety-like behavior, impairments in learning and memory, dysfunction in balance and motor coordination, and a reduction in variety of brain measures including a brain volume, medial prefrontal cortex (mPFC) area, cortical thickness, hippocampal volume, amygdala area, and the neural density in mPFC and dentate gyrus. All behavioral and brain measures revealed adverse effects of the chronic noise stress irrespective of the LC/DC exposure or sex. Our findings were a re-emphasis on the significance of noise prevention and mitigation strategies for public health.
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Affiliation(s)
- Zahra Jafari
- Department of Neuroscience, Canadian Center for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Bryan E Kolb
- Department of Neuroscience, Canadian Center for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada.
| | - Majid H Mohajerani
- Department of Neuroscience, Canadian Center for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada.
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19
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Mouri A, Ukai M, Uchida M, Hasegawa S, Taniguchi M, Ito T, Hida H, Yoshimi A, Yamada K, Kunimoto S, Ozaki N, Nabeshima T, Noda Y. Juvenile social defeat stress exposure persistently impairs social behaviors and neurogenesis. Neuropharmacology 2018; 133:23-37. [DOI: 10.1016/j.neuropharm.2018.01.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 12/23/2017] [Accepted: 01/10/2018] [Indexed: 10/18/2022]
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20
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Packard MG, Goodman J, Ressler RL. Emotional modulation of habit memory: neural mechanisms and implications for psychopathology. Curr Opin Behav Sci 2018. [DOI: 10.1016/j.cobeha.2017.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Adams TG, Kelmendi B, Brake CA, Gruner P, Badour CL, Pittenger C. The role of stress in the pathogenesis and maintenance of obsessive-compulsive disorder. ACTA ACUST UNITED AC 2018. [PMID: 29527593 PMCID: PMC5841259 DOI: 10.1177/2470547018758043] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Individuals with obsessive-compulsive disorder often identify psychosocial stress
as a factor that exacerbates their symptoms, and many trace the onset of
symptoms to a stressful period of life or a discrete traumatic incident.
However, the pathophysiological relationship between stress and
obsessive-compulsive disorder remains poorly characterized: it is unclear
whether trauma or stress is an independent cause of obsessive-compulsive
disorder symptoms, a triggering factor that interacts with a preexisting
diathesis, or simply a nonspecific factor that can exacerbate
obsessive-compulsive disorder along with other aspects of psychiatric
symptomatology. Nonetheless, preclinical research has demonstrated that stress
has conspicuous effects on corticostriatal and limbic circuitry. Specifically,
stress can lead to neuronal atrophy in frontal cortices (particularly the medial
prefrontal cortex), the dorsomedial striatum (caudate), and the hippocampus.
Stress can also result in neuronal hypertrophy in the dorsolateral striatum
(putamen) and amygdala. These neurobiological effects mirror reported neural
abnormalities in obsessive-compulsive disorder and may contribute to an
imbalance between goal-directed and habitual behavior, an imbalance that is
implicated in the pathogenesis and expression of obsessive-compulsive disorder
symptomatology. The modulation of corticostriatal and limbic circuits by stress
and the resultant imbalance between habit and goal-directed learning and
behavior offers a framework for investigating how stress may exacerbate or
trigger obsessive-compulsive disorder symptomatology.
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Affiliation(s)
- T G Adams
- School of Medicine - Department of Psychiatry, Yale University.,Clinical Neuroscience Division of the VA National Center for PTSD
| | - B Kelmendi
- School of Medicine - Department of Psychiatry, Yale University.,Clinical Neuroscience Division of the VA National Center for PTSD
| | - C A Brake
- University of Kentucky, Department of Psychology
| | - P Gruner
- School of Medicine - Department of Psychiatry, Yale University
| | - C L Badour
- University of Kentucky, Department of Psychology
| | - C Pittenger
- School of Medicine - Department of Psychiatry, Yale University.,Clinical Neuroscience Division of the VA National Center for PTSD.,Child Study Center, Yale University.,Department of Psychology, Yale University
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22
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Kan JM, Richardson R. Ghosts of mother's past: Previous maternal stress leads to altered maternal behavior following a subsequent pregnancy in rats. Dev Psychobiol 2018; 60:278-291. [DOI: 10.1002/dev.21609] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 11/08/2017] [Accepted: 11/18/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Janice M. Kan
- School of Women's and Children's HealthThe University of New South WalesSydneyNew South WalesAustralia
| | - Rick Richardson
- School of PsychologyThe University of New South WalesSydneyNew South WalesAustralia
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23
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McHugh Power J, Tang J, Lawlor B, Kenny RA, Kee F. Mediators of the relationship between social activities and cognitive function among older Irish adults: results from the Irish longitudinal study on ageing. Aging Ment Health 2018; 22:129-134. [PMID: 27676290 DOI: 10.1080/13607863.2016.1233935] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Evidence points to an association between social and leisure activity (SLA) engagement and cognitive outcomes, but the mechanisms underlying this link remain unknown. We aimed to investigate three potential mechanisms: Vascular function, Perceived Stress, and Cognitive Reserve. METHODS With data from 8163 adults aged over 50 in the Irish Longitudinal Study of Ageing, we used a structural equation model to evaluate Vascular Function and Perceived Stress as potential mediators, and Cognitive Reserve as a potential antecedent in the relationship between SLA at baseline (2009), and cognitive outcomes collected at a two-year follow-up point (2011). RESULTS Cognitive Reserve was strongly associated both with cognitive outcomes (β = 0.306; p < 0.001) and with SLA (β = 0.694; p < 0.001). Perceived stress (β = 0.018) acted as a significant mediator in the relationships between SLA and cognitive outcomes (p < 0.001), although Vascular Function did not (β = 0.000). CONCLUSION These results indicate that SLA may protect cognitive function partly because of its association with cognitive reserve, and partly through its impact on perceived stress. Results have policy implications for those interested in facilitating SLA to protect cognitive outcomes among older adults.
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Affiliation(s)
- Joanna McHugh Power
- a UKCRC Centre of Excellence for Public Health (Northern Ireland), Institute of Clinical Sciences, Grosvenor Rd , Queen's University Belfast , Belfast , United Kingdom
| | - Jianjun Tang
- a UKCRC Centre of Excellence for Public Health (Northern Ireland), Institute of Clinical Sciences, Grosvenor Rd , Queen's University Belfast , Belfast , United Kingdom
| | - Brian Lawlor
- b Institute of Neuroscience & Centre for Medical Gerontology , Trinity College Dublin , Dublin 2 , Republic of Ireland
| | - Rose Ann Kenny
- b Institute of Neuroscience & Centre for Medical Gerontology , Trinity College Dublin , Dublin 2 , Republic of Ireland
| | - Frank Kee
- a UKCRC Centre of Excellence for Public Health (Northern Ireland), Institute of Clinical Sciences, Grosvenor Rd , Queen's University Belfast , Belfast , United Kingdom
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24
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Zwamborn RA, Snijders C, An N, Thomson A, Rutten BP, de Nijs L. Wnt Signaling in the Hippocampus in Relation to Neurogenesis, Neuroplasticity, Stress and Epigenetics. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 158:129-157. [DOI: 10.1016/bs.pmbts.2018.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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25
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Park H, Lee D, Chey J. Stress enhances model-free reinforcement learning only after negative outcome. PLoS One 2017; 12:e0180588. [PMID: 28723943 PMCID: PMC5516979 DOI: 10.1371/journal.pone.0180588] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 06/16/2017] [Indexed: 11/18/2022] Open
Abstract
Previous studies found that stress shifts behavioral control by promoting habits while decreasing goal-directed behaviors during reward-based decision-making. It is, however, unclear how stress disrupts the relative contribution of the two systems controlling reward-seeking behavior, i.e. model-free (or habit) and model-based (or goal-directed). Here, we investigated whether stress biases the contribution of model-free and model-based reinforcement learning processes differently depending on the valence of outcome, and whether stress alters the learning rate, i.e., how quickly information from the new environment is incorporated into choices. Participants were randomly assigned to either a stress or a control condition, and performed a two-stage Markov decision-making task in which the reward probabilities underwent periodic reversals without notice. We found that stress increased the contribution of model-free reinforcement learning only after negative outcome. Furthermore, stress decreased the learning rate. The results suggest that stress diminishes one's ability to make adaptive choices in multiple aspects of reinforcement learning. This finding has implications for understanding how stress facilitates maladaptive habits, such as addictive behavior, and other dysfunctional behaviors associated with stress in clinical and educational contexts.
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Affiliation(s)
- Heyeon Park
- Department of Psychology, Seoul National University, Seoul, Korea
| | - Daeyeol Lee
- Department of Neuroscience, Department of Psychiatry, Yale School of Medicine, New Haven, United States of America
- Department of Psychology, Yale University, New Haven, United States of America
| | - Jeanyung Chey
- Department of Psychology, Seoul National University, Seoul, Korea
- * E-mail:
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26
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27
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Goldfarb EV, Shields GS, Daw ND, Slavich GM, Phelps EA. Low lifetime stress exposure is associated with reduced stimulus-response memory. ACTA ACUST UNITED AC 2017; 24:162-168. [PMID: 28298555 PMCID: PMC5362698 DOI: 10.1101/lm.045179.117] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 02/21/2017] [Indexed: 01/19/2023]
Abstract
Exposure to stress throughout life can cumulatively influence later health, even among young adults. The negative effects of high cumulative stress exposure are well-known, and a shift from episodic to stimulus–response memory has been proposed to underlie forms of psychopathology that are related to high lifetime stress. At the other extreme, effects of very low stress exposure are mixed, with some studies reporting that low stress leads to better outcomes, while others demonstrate that low stress is associated with diminished resilience and negative outcomes. However, the influence of very low lifetime stress exposure on episodic and stimulus–response memory is unknown. Here we use a lifetime stress assessment system (STRAIN) to assess cumulative lifetime stress exposure and measure memory performance in young adults reporting very low and moderate levels of lifetime stress exposure. Relative to moderate levels of stress, very low levels of lifetime stress were associated with reduced use and retention (24 h later) of stimulus–response (SR) associations, and a higher likelihood of using context memory. Further, computational modeling revealed that participants with low levels of stress exhibited worse expression of memory for SR associations than those with moderate stress. These results demonstrate that very low levels of stress exposure can have negative effects on cognition.
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Affiliation(s)
| | - Grant S Shields
- Department of Psychology, University of California, Davis, Davis, California 95616, USA
| | - Nathaniel D Daw
- Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA.,Department of Psychology, Princeton University, Princeton, New Jersey 08544, USA
| | - George M Slavich
- Cousins Center for Psychoneuroimmunology, University of California, Los Angeles, Los Angeles, California 90095, USA.,Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Elizabeth A Phelps
- Department of Psychology, New York University, New York, New York 10003, USA.,Center for Neural Science, New York University, New York, New York 10003, USA.,Nathan Kline Institute, Orangeburg, New York 10962, USA
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28
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Loxton D, Canales JJ. Long-term cognitive, emotional and neurogenic alterations induced by alcohol and methamphetamine exposure in adolescent rats. Prog Neuropsychopharmacol Biol Psychiatry 2017; 74:1-8. [PMID: 27865801 DOI: 10.1016/j.pnpbp.2016.11.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/15/2016] [Accepted: 11/14/2016] [Indexed: 10/20/2022]
Abstract
A high proportion of young methamphetamine (MA) users simultaneously consume alcohol. However, the potential neurological and behavioural alterations induced by such a drug combination have not been systematically examined. We studied in adolescent rats the long-term effects of alcohol, MA, and alcohol and MA combined on anxiety-like behaviour, memory, and neurogenesis in the adult hippocampus. Rats received saline, ethanol (ETOH, 1.5g/kg), MA (MA, 2mg/kg), or ethanol and MA combined (ETHOH-MA, 1.5g/kg ethanol plus 2mg/kg MA) via oral gavage, once daily for 5 consecutive days. Open field (OF), elevated plus maze (EPM) and radial arm maze (RAM) tests were conducted following a 15-day withdrawal period. The results showed alterations in exploratory behaviour in the OF in the MA and ETOH-MA groups, and anxiety-like effects in the EPM in all three drug treatment groups. All three drug groups exhibited reference memory deficits in the RAM, but only the combination treatment group displayed alterations in working memory. Both MA and ETOH-MA treatments increased the length of doublecortin (DCX)-void gaps in the dentate gyrus but only ETOH-MA treatment increased the number of such gaps. An increased number and length of DCX-void gaps correlated with decreased exploratory activity in the OF, and impaired working memory in the RAM was associated with an augmented number of gaps. These findings suggest that alterations in adult hippocampal neurogenesis are linked to the persistent cognitive and behavioural deficits produced by alcohol and MA exposure.
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Affiliation(s)
- David Loxton
- Department of Psychology, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - Juan J Canales
- Department of Neuroscience, Psychology and Behaviour, Medical Science Building, University of Leicester, University Road, Leicester LE1 9HN, United Kingdom.
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29
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Fournier M, d'Arripe-Longueville F, Radel R. Effects of psychosocial stress on the goal-directed and habit memory systems during learning and later execution. Psychoneuroendocrinology 2017; 77:275-283. [PMID: 28131067 DOI: 10.1016/j.psyneuen.2016.12.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 12/15/2016] [Accepted: 12/15/2016] [Indexed: 02/03/2023]
Abstract
Instrumental learning occurs through both goal-directed and habit memory systems, which are supported by anatomically distinct brain systems. Interestingly, stress may promote habits at the expense of goal-directed performance, since stress before training in an instrumental task was found to cause individuals to carry on with the learned association in spite of a devalued outcome. These findings nevertheless left pending questions, and it has been difficult to determine which system is primarily affected by stress (an improved habit system, an impaired goal-directed system, or both) and at what point the stress acts (at the moment of learning by making more resistant habits, or after devaluation by making individuals less sensitive to change in the outcome value). The present study (N=72 participants, 63 males and 9 females) aimed to answer these questions with (i) an instrumental task that dissociates the two memory systems and (ii) three conditions of psychosocial stress exposure (Trier Social Stress Test): stress induced before learning, before devaluation, and not induced for the control group. The study confirms that exposure to psychosocial stress leads to habitual performance. Moreover, it provides new insight into this effect by locating its origin as an impairment in the capacity of the goal-directed system rather than a reinforcement in habit learning. These results are discussed in light of recent neurobiological models of stress and memory.
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Affiliation(s)
- Marion Fournier
- Université Côte d'Azur, LAMHESS, 261 Boulevard du Mercantour, 06200 Nice, France.
| | | | - Rémi Radel
- Université Côte d'Azur, LAMHESS, 261 Boulevard du Mercantour, 06200 Nice, France.
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Heterogeneity of Brain Ribosomal Genes Expression Following Positive Fighting Experience in Male Mice as Revealed by RNA-Seq. Mol Neurobiol 2016; 55:390-401. [DOI: 10.1007/s12035-016-0327-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 11/29/2016] [Indexed: 01/31/2023]
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Lau C, Hebert M, Vani MA, Walling S, Hayley S, Lagace DC, Blundell J. Absence of neurogenic response following robust predator-induced stress response. Neuroscience 2016; 339:276-286. [DOI: 10.1016/j.neuroscience.2016.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 09/23/2016] [Accepted: 10/02/2016] [Indexed: 12/27/2022]
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Øverli Ø, Sørensen C. On the Role of Neurogenesis and Neural Plasticity in the Evolution of Animal Personalities and Stress Coping Styles. BRAIN, BEHAVIOR AND EVOLUTION 2016; 87:167-174. [DOI: 10.1159/000447085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Individual variation in how animals react to stress and environmental change has become a central topic in a wide range of biological disciplines, from evolutionary ecology to biomedicine. Such variation manifests phenotypically as correlated trait-clusters (referred to as coping styles, behavioral syndromes, shyness-boldness, or personality traits). Thresholds for switching from active coping (fight-flight) to inhibition and passive behavior when exposed to stress depend on experience and genetic factors. Comparative research has revealed a range of neuroendocrine-behavioral associations which are conserved throughout the vertebrate subphylum, including factors affecting perception, learning, and memory of stimuli and events. Here we review conserved aspects of the contribution of neurogenesis and other aspects of neural plasticity to stress coping. In teleost fish, brain cell proliferation and neurogenesis have received recent attention. This work reveals that brain cell proliferation and neurogenesis are associated with heritable variation in stress coping style, and they are also differentially affected by short- and long-term stress in a biphasic manner. Routine-dependent and inflexible behavior in proactive individuals is associated with limited neural plasticity. These evolutionarily conserved relationships hold the potential to illuminate the biological background for stress-related neurobiological disorders.
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The effects of hormones and physical exercise on hippocampal structural plasticity. Front Neuroendocrinol 2016; 41:23-43. [PMID: 26989000 DOI: 10.1016/j.yfrne.2016.03.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/02/2016] [Accepted: 03/08/2016] [Indexed: 01/22/2023]
Abstract
The hippocampus plays an integral role in certain aspects of cognition. Hippocampal structural plasticity and in particular adult hippocampal neurogenesis can be influenced by several intrinsic and extrinsic factors. Here we review how hormones (i.e., intrinsic modulators) and physical exercise (i.e., an extrinsic modulator) can differentially modulate hippocampal plasticity in general and adult hippocampal neurogenesis in particular. Specifically, we provide an overview of the effects of sex hormones, stress hormones, and metabolic hormones on hippocampal structural plasticity and adult hippocampal neurogenesis. In addition, we also discuss how physical exercise modulates these forms of hippocampal plasticity, giving particular emphasis on how this modulation can be affected by variables such as exercise regime, duration, and intensity. Understanding the neurobiological mechanisms underlying the modulation of hippocampal structural plasticity by intrinsic and extrinsic factors will impact the design of new therapeutic approaches aimed at restoring hippocampal plasticity following brain injury or neurodegeneration.
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Social behavior, hormones and adult neurogenesis. Front Neuroendocrinol 2016; 41:71-86. [PMID: 26996817 DOI: 10.1016/j.yfrne.2016.02.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/08/2016] [Accepted: 02/11/2016] [Indexed: 01/31/2023]
Abstract
A variety of experiences have been shown to affect the production of neurons in the adult hippocampus. These effects may be mediated by experience-driven hormonal changes, which, in turn, interact with factors such as sex, age and life history to alter brain plasticity. Although the effects of physical experience and stress have been extensively characterized, various types of social experience across the lifespan trigger profound neuroendocrine changes in parallel with changes in adult neurogenesis. This review article focuses on the influence of specific social experiences on adult neurogenesis in the dentate gyrus and the potential role of hormones in these effects.
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Holmes MM. Social regulation of adult neurogenesis: A comparative approach. Front Neuroendocrinol 2016; 41:59-70. [PMID: 26877107 DOI: 10.1016/j.yfrne.2016.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 02/07/2016] [Accepted: 02/09/2016] [Indexed: 01/25/2023]
Abstract
The social environment sculpts the mammalian brain throughout life. Adult neurogenesis, the birth of new neurons in the mature brain, can be up- or down-regulated by various social manipulations. These include social isolation, social conflict, social status, socio-sexual interactions, and parent/offspring interactions. However, socially-mediated changes in neuron production are often species-, sex-, and/or region-specific. In order to reconcile the variability of social effects on neurogenesis, we need to consider species-specific social adaptations and other contextual variables (e.g. age, social status, reproductive status, etc.) that shift the valence of social stimuli. Using a comparative approach to understand how adult-generated neurons in turn influence social behaviors will shed light on how adult neurogenesis contributes to survival and reproduction in diverse species.
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Affiliation(s)
- Melissa M Holmes
- Department of Psychology, University of Toronto, Canada; Department of Cell & Systems Biology, University of Toronto, Canada; Department of Ecology & Evolutionary Biology, University of Toronto, Canada.
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Abstract
Data from experimental animals and human subjects has provided convergent evidence for the key role of the striatum in the formation of stimulus-response habits. Habits can be distinguished from associative memories that support goal-directed actions based on their insensitivity to reward devaluation and contingency degradation. Behavior on many instrumental learning tasks can be supported by both declarative knowledge and habits, and these contributions shift with the amount of training. This shift appears to be accompanied by the involvement of different cortico-striatal loops in controlling behavior. Factors that encourage the shift toward and maintenance of habits include learning under conditions of stress, distraction, and interval or probabilistic schedules of reinforcement.
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Affiliation(s)
- Barbara J Knowlton
- UCLA Department of Psychology, University of California, Los Angeles, USA.
| | - Tara K Patterson
- UCLA Department of Psychology, University of California, Los Angeles, USA
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Dysfunction in Ribosomal Gene Expression in the Hypothalamus and Hippocampus following Chronic Social Defeat Stress in Male Mice as Revealed by RNA-Seq. Neural Plast 2015; 2016:3289187. [PMID: 26839715 PMCID: PMC4709679 DOI: 10.1155/2016/3289187] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 09/29/2015] [Indexed: 11/17/2022] Open
Abstract
Chronic social defeat stress leads to the development of anxiety- and depression-like states in male mice and is accompanied by numerous molecular changes in brain. The influence of 21-day period of social stress on ribosomal gene expression in five brain regions was studied using the RNA-Seq database. Most Rps, Rpl, Mprs, and Mprl genes were upregulated in the hypothalamus and downregulated in the hippocampus, which may indicate ribosomal dysfunction following chronic social defeat stress. There were no differentially expressed ribosomal genes in the ventral tegmental area, midbrain raphe nuclei, or striatum. This approach may be used to identify a pharmacological treatment of ribosome biogenesis abnormalities in the brain of patients with "ribosomopathies."
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Vega-Rivera NM, Ortiz-López L, Gómez-Sánchez A, Oikawa-Sala J, Estrada-Camarena EM, Ramírez-Rodríguez GB. The neurogenic effects of an enriched environment and its protection against the behavioral consequences of chronic mild stress persistent after enrichment cessation in six-month-old female Balb/C mice. Behav Brain Res 2015; 301:72-83. [PMID: 26721469 DOI: 10.1016/j.bbr.2015.12.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/10/2015] [Accepted: 12/16/2015] [Indexed: 01/02/2023]
Abstract
Because stress may underlie the presence of depressive episodes, strategies to produce protection against or to reverse the effects of stress on neuroplasticity and behavior are relevant. Preclinical studies showed that exposure to stimuli, such as physical activity and environmental enrichment (ENR), produce beneficial effects against stress causing antidepressant-like effects in rodents. Additionally, ENR induces positive effects on neuroplasticity, neurochemistry and behavior at any age of rodents tested. Here, we analyzed whether ENR exposure prevents the development of depressive-like behavior produced by unpredictable, chronic mild stress (CMS) exposure as well as changes in hippocampal neurogenesis in a six-month-old female Balb/C mice, strain that shows low baseline levels of hippocampal neurogenesis. Mice were assigned to one of four groups: (1) normal housing-normal housing (NH-NH), (2) NH-CMS, (3) ENR-NH, or (4) ENR-CMS. The animals were exposed over 46 days to ENR or NH and subsequently to NH or CMS for 4 weeks. ENR induces long-term effects protecting against CMS induction of anhedonia and hopelessness behaviors. Independent of housing conditions, ENR increased the number of proliferative cells (Ki67), and CMS decreased the number of proliferative cells. ENR increased the newborn cells (BrdU) and mature phenotypes of neurons; these effects were not changed by CMS exposure. Similarly, the number of doublecortin-positive cells was not affected by CMS in ENR mice, which showed more cells with complex dendrite arborizations. Our study suggests that ENR induces protection against the effects of CMS on behavior and neuroplasticity in six-month-old Balb/C mice.
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Affiliation(s)
- Nelly Maritza Vega-Rivera
- Laboratory of Neuropsychopharmacology, Division of Neurosciences, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calz. México-Xochimilco 101, 14370 México, D.F., Mexico
| | - Leonardo Ortiz-López
- Laboratory of Neurogenesis, Division of Clinical Investigations, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calzada México-Xochimilco 101, 14370 México, D.F., Mexico
| | - Ariadna Gómez-Sánchez
- Laboratory of Neurogenesis, Division of Clinical Investigations, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calzada México-Xochimilco 101, 14370 México, D.F., Mexico
| | - Julian Oikawa-Sala
- Laboratory of Neurogenesis, Division of Clinical Investigations, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calzada México-Xochimilco 101, 14370 México, D.F., Mexico
| | - Erika Monserrat Estrada-Camarena
- Laboratory of Neuropsychopharmacology, Division of Neurosciences, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calz. México-Xochimilco 101, 14370 México, D.F., Mexico.
| | - Gerardo Bernabé Ramírez-Rodríguez
- Laboratory of Neurogenesis, Division of Clinical Investigations, National Institute of Psychiatry "Ramón de la Fuente Muñiz", Calzada México-Xochimilco 101, 14370 México, D.F., Mexico.
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Defeat stress in rodents: From behavior to molecules. Neurosci Biobehav Rev 2015; 59:111-40. [DOI: 10.1016/j.neubiorev.2015.10.006] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 10/09/2015] [Accepted: 10/12/2015] [Indexed: 12/31/2022]
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40
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Smagin DA, Park JH, Michurina TV, Peunova N, Glass Z, Sayed K, Bondar NP, Kovalenko IN, Kudryavtseva NN, Enikolopov G. Altered Hippocampal Neurogenesis and Amygdalar Neuronal Activity in Adult Mice with Repeated Experience of Aggression. Front Neurosci 2015; 9:443. [PMID: 26648838 PMCID: PMC4664700 DOI: 10.3389/fnins.2015.00443] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 11/06/2015] [Indexed: 12/17/2022] Open
Abstract
Repeated experience of winning in a social conflict setting elevates levels of aggression and may lead to violent behavioral patterns. Here, we use a paradigm of repeated aggression and fighting deprivation to examine changes in behavior, neurogenesis, and neuronal activity in mice with positive fighting experience. We show that for males, repeated positive fighting experience induces persistent demonstration of aggression and stereotypic behaviors in daily agonistic interactions, enhances aggressive motivation, and elevates levels of anxiety. When winning males are deprived of opportunities to engage in further fights, they demonstrate increased levels of aggressiveness. Positive fighting experience results in increased levels of progenitor cell proliferation and production of young neurons in the hippocampus. This increase is not diminished after a fighting deprivation period. Furthermore, repeated winning experience decreases the number of activated (c-fos-positive) cells in the basolateral amygdala and increases the number of activated cells in the hippocampus; a subsequent no-fight period restores the number of c-fos-positive cells. Our results indicate that extended positive fighting experience in a social conflict heightens aggression, increases proliferation of neuronal progenitors and production of young neurons in the hippocampus, and decreases neuronal activity in the amygdala; these changes can be modified by depriving the winners of the opportunity for further fights.
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Affiliation(s)
- Dmitry A. Smagin
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of SciencesNovosibirsk, Russia
- Department of Nano-, Bio-, Information Technology and Cognitive Science, Moscow Institute of Physics and TechnologyMoscow, Russia
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
| | - June-Hee Park
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
| | - Tatyana V. Michurina
- Department of Nano-, Bio-, Information Technology and Cognitive Science, Moscow Institute of Physics and TechnologyMoscow, Russia
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
- Department of Anesthesiology, Stony Brook School of MedicineStony Brook, NY, USA
- Center for Developmental Genetics, Stony Brook UniversityStony Brook, NY, USA
| | - Natalia Peunova
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
- Department of Anesthesiology, Stony Brook School of MedicineStony Brook, NY, USA
- Center for Developmental Genetics, Stony Brook UniversityStony Brook, NY, USA
| | - Zachary Glass
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
| | - Kasim Sayed
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
| | - Natalya P. Bondar
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of SciencesNovosibirsk, Russia
| | - Irina N. Kovalenko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of SciencesNovosibirsk, Russia
| | - Natalia N. Kudryavtseva
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of SciencesNovosibirsk, Russia
| | - Grigori Enikolopov
- Department of Nano-, Bio-, Information Technology and Cognitive Science, Moscow Institute of Physics and TechnologyMoscow, Russia
- Cold Spring Harbor Laboratory, Cold Spring HarborNY, USA
- Department of Anesthesiology, Stony Brook School of MedicineStony Brook, NY, USA
- Center for Developmental Genetics, Stony Brook UniversityStony Brook, NY, USA
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Simvastatin prevents β-amyloid25–35-impaired neurogenesis in hippocampal dentate gyrus through α7nAChR-dependent cascading PI3K-Akt and increasing BDNF via reduction of farnesyl pyrophosphate. Neuropharmacology 2015; 97:122-32. [DOI: 10.1016/j.neuropharm.2015.05.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 05/17/2015] [Accepted: 05/19/2015] [Indexed: 02/06/2023]
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Chen CC, Huang CC, Hsu KS. Chronic Social Stress Affects Synaptic Maturation of Newly Generated Neurons in the Adult Mouse Dentate Gyrus. Int J Neuropsychopharmacol 2015; 19:pyv097. [PMID: 26346341 PMCID: PMC4815468 DOI: 10.1093/ijnp/pyv097] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 08/18/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Chronic stress has been found to suppress adult neurogenesis, but it remains unclear whether it may affect the maturation process of adult-born neurons. Here, we examined the influence of chronic social defeat stress on the morphological and electrophysiological properties of adult-born dentate granule cells at different developmental stages. METHODS Adult C57BL/6 mice were subjected to 10 days of chronic social defeat stress followed by a social interaction test 24 hours after the last defeat. Defeated mice were segregated into susceptible and unsusceptible subpopulations based on a measure of social interaction test. Combining electrophysiology with retrovirus-mediated birth-dating and labeling, we examined the impact of chronic social defeat stress on temporal regulation of synaptic plasticity of adult-born dentate granule cells along their maturation. RESULTS Chronic social defeat stress decreases the survival and dendritic complexity of adult-born dentate granule cells. While chronic social defeat stress doesn't alter the intrinsic electrophysiological properties and synaptic transmission of surviving adult-born dentate granule cells, it promotes the developmental switch in synaptic N-methyl-D-aspartate receptors from predominant GluN2B- to GluN2A-containing receptors, which transform the immature synapse of adult-born dentate granule cells from one that exhibits enhanced long-term potentiation to one that has normal levels of long-term potentiation. Furthermore, chronic social defeat stress increases the level of endogenous repressor element-1 silencing transcription factor mRNA in adult-born dentate granule cells, and knockdown of the repressor element-1 silencing transcription factor in adult-born dentate granule cells rescues chronic social defeat stress-induced morphological deficits and accelerated developmental switch in synaptic N-methyl-D-aspartate receptor subunit composition. CONCLUSIONS These results uncover a previously unsuspected role of chronic social defeat stress in regulating adult neurogenesis and suggest that chronic social defeat stress can affect synaptic maturation process of adult-born dentate granule cells.
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Affiliation(s)
| | | | - Kuei-Sen Hsu
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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43
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Xu Y, Cheng X, Cui X, Wang T, Liu G, Yang R, Wang J, Bo X, Wang S, Zhou W, Zhang Y. Effects of 5-h multimodal stress on the molecules and pathways involved in dendritic morphology and cognitive function. Neurobiol Learn Mem 2015; 123:225-38. [DOI: 10.1016/j.nlm.2015.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 06/17/2015] [Accepted: 06/23/2015] [Indexed: 11/25/2022]
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Egeland M, Zunszain PA, Pariante CM. Molecular mechanisms in the regulation of adult neurogenesis during stress. Nat Rev Neurosci 2015; 16:189-200. [PMID: 25790864 DOI: 10.1038/nrn3855] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Coping with stress is fundamental for mental health, but understanding of the molecular neurobiology of stress is still in its infancy. Adult neurogenesis is well known to be regulated by stress, and conversely adult neurogenesis regulates stress responses. Recent studies in neurogenic cells indicate that molecular pathways activated by glucocorticoids, the main stress hormones, are modulated by crosstalk with other stress-relevant mechanisms, including inflammatory mediators, neurotrophic factors and morphogen signalling pathways. This Review discusses the pathways that are involved in this crosstalk and thus regulate this complex relationship between adult neurogenesis and stress.
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Affiliation(s)
- Martin Egeland
- Institute of Psychiatry, Psychology and Neuroscience, Kings College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Patricia A Zunszain
- Institute of Psychiatry, Psychology and Neuroscience, Kings College London, 125 Coldharbour Lane, London, SE5 9NU, UK
| | - Carmine M Pariante
- Institute of Psychiatry, Psychology and Neuroscience, Kings College London, 125 Coldharbour Lane, London, SE5 9NU, UK
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45
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Koutmani Y, Karalis KP. Neural stem cells respond to stress hormones: distinguishing beneficial from detrimental stress. Front Physiol 2015; 6:77. [PMID: 25814957 PMCID: PMC4356227 DOI: 10.3389/fphys.2015.00077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 02/26/2015] [Indexed: 11/13/2022] Open
Abstract
Neural stem cells (NSCs), the progenitors of the nervous system, control distinct, position-specific functions and are critically involved in the maintenance of homeostasis in the brain. The responses of these cells to various stressful stimuli are shaped by genetic, epigenetic, and environmental factors via mechanisms that are age and developmental stage-dependent and still remain, to a great extent, elusive. Increasing evidence advocates for the beneficial impact of the stress response in various settings, complementing the extensive number of studies on the detrimental effects of stress, particularly in the developing brain. In this review, we discuss suggested mechanisms mediating both the beneficial and detrimental effects of stressors on NSC activity across the lifespan. We focus on the specific effects of secreted factors and we propose NSCs as a “sensor,” capable of distinguishing among the different stressors and adapting its functions accordingly. All the above suggest the intriguing hypothesis that NSCs are an important part of the adaptive response to stressors via direct and indirect, specific mechanisms.
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Affiliation(s)
- Yassemi Koutmani
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation of the Academy of Athens Athens, Greece
| | - Katia P Karalis
- Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation of the Academy of Athens Athens, Greece ; Endocrine Division, Children's Hospital, Harvard Medical School Boston, MA, USA
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46
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Schoenfeld TJ, Cameron HA. Adult neurogenesis and mental illness. Neuropsychopharmacology 2015; 40:113-28. [PMID: 25178407 PMCID: PMC4262910 DOI: 10.1038/npp.2014.230] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 08/28/2014] [Accepted: 08/28/2014] [Indexed: 02/07/2023]
Abstract
Several lines of evidence suggest that adult neurogenesis, the production of new neurons in adulthood, may play a role in psychiatric disorders, including depression, anxiety, and schizophrenia. Medications and other treatments for mental disorders often promote the proliferation of new neurons; the time course for maturation and integration of new neurons in circuitry parallels the delayed efficacy of psychiatric therapies; adverse and beneficial experiences similarly affect development of mental illness and neurogenesis; and ablation of new neurons in adulthood alters the behavioral impact of drugs in animal models. At present, the links between adult neurogenesis and depression seem stronger than those suggesting a relationship between new neurons and anxiety or schizophrenia. Yet, even in the case of depression there is currently no direct evidence for a causative role. This article reviews the data relating adult neurogenesis to mental illness and discusses where research needs to head in the future.
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Affiliation(s)
- Timothy J Schoenfeld
- Section on Neuroplasticity, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Heather A Cameron
- Section on Neuroplasticity, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA,Section on Neuroplasticity, NIMH, 35 Convent Drive, Building 35/3C915, Bethesda, MD 20892-3718, USA, Tel: +1 301 496 3814, Fax: +1 301 480 4564, E-mail:
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Aimone JB, Li Y, Lee SW, Clemenson GD, Deng W, Gage FH. Regulation and function of adult neurogenesis: from genes to cognition. Physiol Rev 2014; 94:991-1026. [PMID: 25287858 DOI: 10.1152/physrev.00004.2014] [Citation(s) in RCA: 421] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Adult neurogenesis in the hippocampus is a notable process due not only to its uniqueness and potential impact on cognition but also to its localized vertical integration of different scales of neuroscience, ranging from molecular and cellular biology to behavior. This review summarizes the recent research regarding the process of adult neurogenesis from these different perspectives, with particular emphasis on the differentiation and development of new neurons, the regulation of the process by extrinsic and intrinsic factors, and their ultimate function in the hippocampus circuit. Arising from a local neural stem cell population, new neurons progress through several stages of maturation, ultimately integrating into the adult dentate gyrus network. The increased appreciation of the full neurogenesis process, from genes and cells to behavior and cognition, makes neurogenesis both a unique case study for how scales in neuroscience can link together and suggests neurogenesis as a potential target for therapeutic intervention for a number of disorders.
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Affiliation(s)
- James B Aimone
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
| | - Yan Li
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
| | - Star W Lee
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
| | - Gregory D Clemenson
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
| | - Wei Deng
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
| | - Fred H Gage
- Cognitive Modeling Group, Sandia National Laboratories, Albuquerque, New Mexico; and Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, California
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48
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Stress modulation of hippocampal activity – Spotlight on the dentate gyrus. Neurobiol Learn Mem 2014; 112:53-60. [DOI: 10.1016/j.nlm.2014.04.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/17/2014] [Accepted: 04/08/2014] [Indexed: 12/18/2022]
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49
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Extended effect of chronic social defeat stress in childhood on behaviors in adulthood. PLoS One 2014; 9:e91762. [PMID: 24667609 PMCID: PMC3965398 DOI: 10.1371/journal.pone.0091762] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 02/13/2014] [Indexed: 01/22/2023] Open
Abstract
Individuals exposed to social stress in childhood are more predisposed to developing psychoemotional disorders in adulthood. Here we use an animal model to determine the influence of hostile social environment in adolescence on behavior during adult life. One-month-old adolescent male mice were placed for 2 weeks in a common cage with an adult aggressive male. Animals were separated by a transparent perforated partition, but the adolescent male was exposed daily to short attacks from the adult male. After exposure to social stress, some of the adolescent mice were placed for 3 weeks in comfortable conditions. Following this rest period, stressed young males and adult males were studied in a range of behavioral tests to evaluate the levels of anxiety, depressiveness, and communicativeness with an unfamiliar partner. In addition, adult mice exposed to social stress in adolescence were engaged in agonistic interactions. We found that 2 weeks of social stress result in a decrease of communicativeness in the home cage and diminished social interactions on the novel territory. Stressed adolescents demonstrated a high level of anxiety in the elevated plus-maze test and helplessness in the Porsolt test. Furthermore, the number of dividing (BrdU-positive) cells in the subgranular zone of the dentate gyrus was significantly lower in stressed adolescents. After 3 weeks of rest, most behavioral characteristics in different tests, as well as the number of BrdU-positive cells in the hippocampus, did not differ from those of the respective control mice. However, the level of anxiety remained high in adult males exposed to chronic social stress in childhood. Furthermore, these males were more aggressive in the agonistic interactions. Thus, hostile social environment in adolescence disturbs psychoemotional state and social behaviors of animals in adult life.
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Saaltink DJ, Vreugdenhil E. Stress, glucocorticoid receptors, and adult neurogenesis: a balance between excitation and inhibition? Cell Mol Life Sci 2014; 71:2499-515. [PMID: 24522255 PMCID: PMC4055840 DOI: 10.1007/s00018-014-1568-5] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 12/26/2013] [Accepted: 01/16/2014] [Indexed: 02/06/2023]
Abstract
Adult neurogenesis, the birth of new neurons in the mature brain, has attracted considerable attention in the last decade. One of the earliest identified and most profound factors that affect adult neurogenesis both positively and negatively is stress. Here, we review the complex interplay between stress and adult neurogenesis. In particular, we review the role of the glucocorticoid receptor, the main mediator of the stress response in the proliferation, differentiation, migration, and functional integration of newborn neurons in the hippocampus. We review a multitude of mechanisms regulating glucocorticoid receptor activity in relationship to adult neurogenesis. We postulate a novel concept in which the level of glucocorticoid receptor expression directly regulates the excitation-inhibition balance, which is key for proper neurogenesis. We furthermore argue that an excitation-inhibition dis-balance may underlie aberrant functional integration of newborn neurons that is associated with psychiatric and paroxysmal brain disorders.
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Affiliation(s)
- Dirk-Jan Saaltink
- Department of Medical Pharmacology, Leiden University Medical Center/Leiden Amsterdam Center for Drug Research, 2300 RC, Leiden, The Netherlands
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