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Girella A, Di Bartolomeo M, Dainese E, Buzzelli V, Trezza V, D'Addario C. Fatty Acid Amide Hydrolase and Cannabinoid Receptor Type 1 Genes Regulation is Modulated by Social Isolation in Rats. Neurochem Res 2024; 49:1278-1290. [PMID: 38368587 DOI: 10.1007/s11064-024-04117-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/08/2024] [Accepted: 01/25/2024] [Indexed: 02/19/2024]
Abstract
Social isolation is a state of lack of social connections, involving the modulation of different molecular signalling cascades and associated with high risk of mental health issues. To investigate if and how gene expression is modulated by social experience at the central level, we analyzed the effects of 5 weeks of social isolation in rats focusing on endocannabinoid system genes transcription in key brain regions involved in emotional control. We observed selective reduction in mRNA levels for fatty acid amide hydrolase (Faah) and cannabinoid receptor type 1 (Cnr1) genes in the amygdala complex and of Cnr1 in the prefrontal cortex of socially isolated rats when compared to controls, and these changes appear to be partially driven by trimethylation of Lysine 27 and acetylation of Lysine 9 at Histone 3. The alterations of Cnr1 transcriptional regulation result also directly correlated with those of oxytocin receptor gene. We here suggest that to counteract the effects of SI, it is of relevance to restore the endocannabinoid system homeostasis via the use of environmental triggers able to revert those epigenetic mechanisms accounting for the alterations observed.
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Affiliation(s)
- Antonio Girella
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini, 1, 64100, Teramo, Italy
| | - Martina Di Bartolomeo
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini, 1, 64100, Teramo, Italy
| | - Enrico Dainese
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini, 1, 64100, Teramo, Italy
| | | | - Viviana Trezza
- Department of Science, Roma Tre University, Rome, Italy
- Neuroendocrinology, Metabolism and Neuropharmacology Unit, IRCSS Fondazione Santa Lucia, Rome, Italy
| | - Claudio D'Addario
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via Renato Balzarini, 1, 64100, Teramo, Italy.
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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Cruz-Ochoa NA, Motta-Teixeira LC, Cruz-Ochoa PF, Lopez-Paredes S, Ochoa-Amaya JE, Takada SH, Xavier GF, Nogueira MI. Post-weaning social isolation modifies neonatal anoxia-induced changes in energy metabolism and growth of rats. Int J Dev Neurosci 2024. [PMID: 38530155 DOI: 10.1002/jdn.10327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/08/2024] [Accepted: 03/04/2024] [Indexed: 03/27/2024] Open
Abstract
Neonatal oxygen deficiency in rats may disturb growth and long-term metabolic homeostasis. In order to facilitate metabolic evaluation, the subjects are usually housed individually. However, social isolation associated with individually housed conditions alters animal behavior, which may influence the experimental results. This study investigated the effects of social isolation on neonatal anoxia-induced changes in growth and energy metabolism. Male and female Wistar rats were exposed, on postnatal day 2 (P2), to either 25-min of anoxia or control treatment. From P27 onward, part of the subjects of each group was isolated in standard cages, and the remaining subjects were housed in groups. At P34 or P95, the subjects were fasted for 18 h, refeed for 1 h, and then perfused 30 min later. Glycemia, leptin, insulin, and morphology of the pancreas were evaluated at both ages. For subjects perfused at P95, body weight and food intake were recorded up to P90, and the brain was collected for Fos and NeuN immunohistochemistry. Results showed that male rats exposed to neonatal anoxia and social isolation exhibited increased body weight gain despite the lack of changes in food intake. In addition, social isolation (1) decreased post-fasting weight loss and post-fasting food intake and (2) increased glycemia, insulin, and leptin levels of male and female rats exposed to anoxia and control treatments, both at P35 and P95. Furthermore, although at P35, anoxia increased insulin levels of males, it decreased the area of the β-positive cells in the pancreas of females. At P95, anoxia increased post-prandial weight loss of males, post-fasting food intake, insulin, and leptin, and decreased Fos expression in the arcuate nucleus (ARC) of males and females. Hyperphagia was associated with possible resistance to leptin and insulin, suspected by the high circulating levels of these hormones and poor neuronal activation of ARC. This study demonstrated that continuous social isolation from weaning modifies, in a differentiated way, the long-term energy metabolism and growth of male and female Wistar rats exposed to neonatal anoxia or even control treatments. Therefore, social isolation should be considered as a factor that negatively influences experimental results and the outcomes of the neonatal injury. These results should also be taken into account in clinical procedures, since the used model simulates the preterm babies' conditions and some therapeutic approaches require isolation.
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Affiliation(s)
- Natalia Andrea Cruz-Ochoa
- Neurosciences Laboratory, Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Lívia Clemente Motta-Teixeira
- Neurobiology Laboratory, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Pablo Felipe Cruz-Ochoa
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Santiago Lopez-Paredes
- Research Group of Pathology of Domestic and Wild Animals. Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad de los Llanos, Villavicencio, Colombia
| | - Julieta Esperanza Ochoa-Amaya
- Research Group of Pathology of Domestic and Wild Animals. Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad de los Llanos, Villavicencio, Colombia
| | - Silvia Honda Takada
- Laboratory of Neurogenetics. Center for Mathematics, Computing and Cognition, Federal University of ABC, São Bernardo do Campo, São Paolo, Brazil
| | - Gilberto Fernando Xavier
- Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Maria Inês Nogueira
- Neurosciences Laboratory, Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, São Paulo, Brazil
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Jianfang W, Raza SHA, Pant SD, Juan Z, Prakash A, Abdelnour SA, Aloufi BH, Mahasneh ZMH, Amin AA, Shokrollahi B, Zan L. Exploring Epigenetic and Genetic Modulation in Animal Responses to Thermal Stress. Mol Biotechnol 2024:10.1007/s12033-024-01126-5. [PMID: 38528286 DOI: 10.1007/s12033-024-01126-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/27/2024] [Indexed: 03/27/2024]
Abstract
There is increasing evidence indicating that global temperatures are rising significantly, a phenomenon commonly referred to as 'global warming', which in turn is believed to be causing drastic changes to the global climate. Global warming (GW) directly impacts animal health, reproduction, production, and welfare, presenting several challenges to livestock enterprises. Thermal stress (TS) is one of the key consequences of GW, and all animal species, including livestock, have diverse physiological, epigenetic and genetic mechanisms to respond to TS. As a result, TS can significantly affect an animals' health, immune responsiveness, metabolic pathways etc. which can also influence the productivity, performance, and welfare of animals. Moreover, prolonged exposure to TS can lead to transgenerational and intergenerational changes that are mediated by epigenetic changes. For example, in several animal species, the effects of TS are encoded epigenetically during the animals' growth or productive stage, and these epigenetic changes can be transmitted intergenerationally. Such epigenetic changes can affect animal productivity by changing the phenotype so that it aligns with its ancestors' environment, irrespective of its immediate environment. Furthermore, epigenetic and genetic changes can also help protect cells from the adverse effects of TS by modulating the transcriptional status of heat-responsive genes in animals. This review focuses on the genetic and epigenetic modulation and regulation that occurs in TS conditions via HSPs, histone alterations and DNA methylation.
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Affiliation(s)
- Wang Jianfang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Guangdong Provincial Key Laboratory of Food Quality and Safety/Nation-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512005, China
| | - Sameer D Pant
- Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW, 2678, Australia
| | - Zhao Juan
- College of Animal Science and Technology, South China Agricultural University, Guangzhou, 510642, China
| | - Ajit Prakash
- Department of Biochemistry and Biophysics, University of North Carolina, School of Medicine, Chapel Hill, USA
| | - Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt
| | - Bandar Hamad Aloufi
- Biology Department, Faculty of Science, University of Ha'il, Ha'il, Saudi Arabia
| | - Zeinab M H Mahasneh
- Department of Animal Production, School of Agriculture, University of Jordan, Amman, Jordan
| | - Ahmed A Amin
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Borhan Shokrollahi
- Hanwoo Research Institute, National Institute of Animal Science, Pyeongchang-gun, 25340, Republic of Korea
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Seemiller LR, Flores-Cuadra J, Griffith KR, Smith GC, Crowley NA. Alcohol and stress exposure across the lifespan are key risk factors for Alzheimer's Disease and cognitive decline. Neurobiol Stress 2024; 29:100605. [PMID: 38268931 PMCID: PMC10806346 DOI: 10.1016/j.ynstr.2024.100605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/11/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
Alzheimer's Disease and related dementias (ADRD) are an increasing threat to global health initiatives. Efforts to prevent the development of ADRD require understanding behaviors that increase and decrease risk of neurodegeneration and cognitive decline, in addition to uncovering the underlying biological mechanisms behind these effects. Stress exposure and alcohol consumption have both been associated with increased risk for ADRD in human populations. However, our ability to understand causal mechanisms of ADRD requires substantial preclinical research. In this review, we summarize existing human and animal research investigating the connections between lifetime stress and alcohol exposures and ADRD.
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Affiliation(s)
- Laurel R. Seemiller
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Center for Neural Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Julio Flores-Cuadra
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Neuroscience Graduate Program, Huck Institute of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Keith R. Griffith
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Grace C. Smith
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Nicole A. Crowley
- Department of Biology, The Pennsylvania State University, University Park, PA, 16802, USA
- Center for Neural Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Neuroscience Graduate Program, Huck Institute of the Life Sciences, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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Mendelski GQ, Furini CRG, Stefani GP, Botton LP, Baptista RR. Enhancing long-term memory through strength training: An experimental study in adult and middle-aged rats. Behav Brain Res 2024; 456:114697. [PMID: 37793439 DOI: 10.1016/j.bbr.2023.114697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/09/2023] [Accepted: 09/30/2023] [Indexed: 10/06/2023]
Abstract
The study aimed to explore the impact of strength training on long-term memory in adult and middle-aged rodents, specifically male Wistar rats aged 9 and 20 months. These rats were divided into two groups: one sedentary (SED) and the other trained (ST) for a period of 12 weeks. The strength training involved squatting exercises using adapted equipment, while the sedentary group maintained their regular, non-exercised routine. Behavioral tasks assessing mobility, anxiety, and multiple facets of memory, such as object recognition memory (ORM), social recognition memory (SRM), and object location memory (OLM), were conducted post-training. The findings were promising, revealing a generally beneficial impact of strength training on memory tasks across both age groups. Specifically, the ORM tasks showed facilitated and improved learning in both adult and middle-aged rats that underwent training. In contrast, OLM displayed only a facilitatory effect in both age groups, meaning that while the trained rats learned the task, they did not outperform the sedentary group. For SRM, a facilitatory effect was observed only in the adult group. In addition to the cognitive benefits, strength training was found to have an anxiolytic effect in the 9-month-old rats and positively affected body mass and adipose tissue composition. Notably, the study correlated the strength gains from the training with improved performance in memory tasks. These outcomes provide crucial insights into the potential of exercise-based interventions to bolster cognitive health and mitigate age-related cognitive decline.
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Affiliation(s)
- Gabriela Quines Mendelski
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil
| | - Cristiane Regina Guerino Furini
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil; Laboratory of Cognition and Neurobiology of Memory, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Brazil
| | | | | | - Rafael Reimann Baptista
- Graduate Program in Biomedical Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Brazil; School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Brazil.
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Fraser K, Kuhn M, Swanson R, Coulter DW, Copeland C, Zuniga JM. Low Motor Dexterity and Significant Behaviors Following Hospitalized Isolation in Children. Children (Basel) 2023; 10:1287. [PMID: 37628286 PMCID: PMC10453062 DOI: 10.3390/children10081287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023]
Abstract
The main objective of this study was to describe the cortical patterns of brain activity during a gross dexterity task and develop a behavioral profile of children experiencing isolation. A cross-sectional assessment was conducted during one visit. Sample: Four pediatric patients who had undergone isolation within a hospital comprised the full data collection. During the collection, participants completed the Box and Blocks Test of gross manual dexterity while undergoing imaging of the motor cortex using functional near-infrared spectroscopy. Participants also completed a Behavioral Assessment System for Children, Third Edition (BASC-3) self-report, which was analyzed along with a parent report to quantify their emotional and social behaviors. All participants displayed lower gross dexterity levels than normative data. Furthermore, three out of the four participants displayed ipsilateral dominance of the motor cortex during the dexterity task. Three of the participants displayed behavioral measures reported within clinically significant or at-risk scores. Clinically significant behavioral scores coupled with lower than expected manual dexterity values and ipsilateral hemispheric dominance indicate that neuroplastic changes can occur in populations undergoing hospitalized isolation. While the impacts of the treatments and isolation in this case cannot be separated, further studies should be conducted to understand these impacts of isolation.
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Affiliation(s)
- Kaitlin Fraser
- Department of Biomechanics, University of Nebraska Omaha, Omaha, NE 68182, USA (C.C.)
| | - Miriam Kuhn
- Department of Special Education and Communication Disorders, University of Nebraska Omaha, Omaha, NE 68182, USA
| | - Rebecca Swanson
- Pediatric Hematology and Oncology Clinic, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Don W. Coulter
- Division of Pediatric Hematology and Oncology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Children’s Hospital & Medical Center Specialty Pediatric Center, Omaha, NE 68114, USA
| | - Christopher Copeland
- Department of Biomechanics, University of Nebraska Omaha, Omaha, NE 68182, USA (C.C.)
| | - Jorge M. Zuniga
- Department of Biomechanics, University of Nebraska Omaha, Omaha, NE 68182, USA (C.C.)
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Borges JV, Pires VN, de Freitas BS, Rübensam G, Vieira VC, de Souza Dos Santos C, Schröder N, Bromberg E. Behavior, BDNF and epigenetic mechanisms in response to social isolation and social support in middle aged rats exposed to chronic stress. Behav Brain Res 2023; 441:114303. [PMID: 36657665 DOI: 10.1016/j.bbr.2023.114303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 01/11/2023] [Accepted: 01/15/2023] [Indexed: 01/18/2023]
Abstract
Social deprivation can be stressful for group-living mammals. On the other hand, an amazing response of these animals to stress is seeking social contact to give and receive joint protection in threatening situations. We explored the effects of social isolation and social support on epigenetic and behavioral responses to chronic stress. More specifically, we investigated the behavioral responses, corticosterone levels, BDNF gene expression, and markers of hippocampal epigenetic alterations (levels of H3K9 acetylation and methylation, H3K27 methylation, HDAC5, DNMT1, and DNMT3a gene expressions) in middle-aged adult rats maintained in different housing conditions (isolation or accompanied housing) and exposed to the chronic unpredictable stress protocol (CUS). Isolation was associated with decreased basal levels of corticosterone, impaired long-term memory, and decreased expression of the BDNF gene, besides altering the balance of H3K9 from acetylation to methylation and increasing the DNMT1 gene expression. The CUS protocol decreased H3K9 acetylation, besides increasing H3K27 methylation and DNMT1 gene expression, but had no significant effects on memory and BDNF gene expression. Interestingly, the effects of CUS on corticosterone and HDAC5 gene expression were seen only in isolated animals, whereas the effects of CUS on DNMT1 gene expression were more pronounced in isolated than accompanied animals. In conclusion, social isolation in middle age showed broader effects than chronic unpredictable stress on behavioral and epigenetic alterations potentially associated with decreased BDNF expression. Moreover, social support prevented the adverse effects of CUS on HPA axis functioning, HDAC5, and DNMT1 gene expressions.
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Affiliation(s)
- Juliano Viana Borges
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil
| | - Vivian Naziaseno Pires
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6690, 90610-000 Porto Alegre, Brazil
| | - Betânia Souza de Freitas
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil
| | - Gabriel Rübensam
- Center of Toxicology and Pharmacology Research, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Brazil
| | - Vitória Corrêa Vieira
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil
| | - Cristophod de Souza Dos Santos
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil
| | - Nadja Schröder
- National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, Brazil; Department of Physiology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Elke Bromberg
- Laboratory of Biology and Development of the Nervous System, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900 Porto Alegre, Brazil; Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6690, 90610-000 Porto Alegre, Brazil; National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, Brazil.
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Broadfoot CK, Lenell C, Kelm-Nelson CA, Ciucci MR. Effects of social isolation on 50-kHz ultrasonic vocalizations, affective state, cognition, and neurotransmitter concentrations in the ventral tegmental and locus coeruleus of adult rats. Behav Brain Res 2023; 437:114157. [PMID: 36241070 PMCID: PMC9829432 DOI: 10.1016/j.bbr.2022.114157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/23/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
Abstract
Vocal communication, cognition, and affective state are key features of sustained health and wellness, and because vocalizations are often socially-motivated, social experience likely plays a role in these behaviors. The monoaminergic systems of the ventral tegmental area (VTA) and the locus coeruleus (LC) are associated with social and reward processing, vocalization production, and neurotransmitter changes in response to environmental stressors. The effect of social isolation on these complex behaviors and the underlying neural mechanisms is relatively unknown. To add to this body of literature, we randomized adult male Long-Evans rats to control (housed with a cagemate) or isolated (housed individually) conditions and assayed ultrasonic vocalizations, cognition (novel object recognition test), anxiety (elevated plus maze) and anhedonia (sucrose preference test) at 2, 4, 6, 8, and 10 months of age. At 10 months, VTA and LC samples were assayed for dopamine, norepinephrine, and serotonin using high performance liquid chromatography. We tested the hypotheses that isolation 1) diminishes vocalizations and cognition, 2) increases anxiety and depression, and 3) increases levels of dopamine, norepinephrine, and serotonin in the VTA and LC. Results showed isolation significantly reduced vocalization tonality (signal-to-noise ratio) and increased maximum frequency. There were no significant findings for cognition, anxiety, or anhedonia. Dopamine and serotonin and their respective metabolites were significantly increased in the VTA in isolated rats. These findings suggest chronic changes to social condition such as isolation affects vocalization production and levels of VTA neurotransmitters.
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Affiliation(s)
- Courtney K Broadfoot
- Department of Communication Sciences and Disorders, University of Wisconsin-Madison, 1975 Willow Drive, Madison, WI 53706, USA; Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA.
| | - Charles Lenell
- Department of Audiology and Speech-Language Sciences, University of Northern Colorado, 1400 Gunter Hall, Greenly, CO 80639, USA
| | - Cynthia A Kelm-Nelson
- Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Michelle R Ciucci
- Department of Communication Sciences and Disorders, University of Wisconsin-Madison, 1975 Willow Drive, Madison, WI 53706, USA; Department of Surgery, Division of Otolaryngology-Head & Neck Surgery, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA; Neuroscience Training Program, University of Wisconsin-Madison, 9531 MIMR II, 1111 Highland Avenue, Madison, WI 53705, USA
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Lanooij SD, Eisel ULM, Drinkenburg WHIM, van der Zee EA, Kas MJH. Influencing cognitive performance via social interactions: a novel therapeutic approach for brain disorders based on neuroanatomical mapping? Mol Psychiatry 2023; 28:28-33. [PMID: 35858991 PMCID: PMC9812764 DOI: 10.1038/s41380-022-01698-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 01/09/2023]
Abstract
Many psychiatric and neurological disorders present deficits in both the social and cognitive domain. In this perspectives article, we provide an overview and the potential of the existence of an extensive neurobiological substrate underlying the close relationship between these two domains. By mapping the rodent brain regions involved in the social and/or cognitive domain, we show that the vast majority of brain regions involved in the cognitive domain are also involved in the social domain. The identified neuroanatomical overlap has an evolutionary basis, as complex social behavior requires cognitive skills, and aligns with the reported functional interactions of processes underlying cognitive and social performance. Based on the neuroanatomical mapping, recent (pre-)clinical findings, and the evolutionary perspective, we emphasize that the social domain requires more focus as an important treatment target and/or biomarker, especially considering the presently limited treatment strategies for these disorders.
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Affiliation(s)
- Suzanne D. Lanooij
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Ulrich L. M. Eisel
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Wilhelmus H. I. M. Drinkenburg
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands ,grid.419619.20000 0004 0623 0341Department of Neuroscience, Janssen Research & Development, a Division of Janssen Pharmaceutica NV, Turnhoutseweg 30, B-2340 Beerse, Belgium
| | - Eddy A. van der Zee
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Martien J. H. Kas
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences (GELIFES), Neurobiology, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
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Mascheretti S, Forni D, Lampis V, Fumagalli L, Paquin S, Andlauer TFM, Wang W, Dionne G, Brendgen MR, Vitaro F, Ouellet-Morin I, Rouleau G, Gouin JP, Côté S, Tremblay RE, Turecki G, Garon-Carrier G, Boivin M, Battaglia M. Adolescent anxiety and pain problems: A joint, genome-wide investigation and pathway-based analysis. PLoS One 2023; 18:e0285263. [PMID: 37146008 PMCID: PMC10162554 DOI: 10.1371/journal.pone.0285263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 04/18/2023] [Indexed: 05/07/2023] Open
Abstract
Both common pain and anxiety problems are widespread, debilitating and often begin in childhood-adolescence. Twin studies indicate that this co-occurrence is likely due to shared elements of risk, rather than reciprocal causation. A joint genome-wide investigation and pathway/network-based analysis of adolescent anxiety and pain problems can identify genetic pathways that subserve shared etiopathogenetic mechanisms. Pathway-based analyses were performed in the independent samples of: The Quebec Newborn Twin Study (QNTS; 246 twin pairs and 321 parents), the Longitudinal Study of Child Development in Quebec (QLSCD; n = 754), and in the combined QNTS and QLSCD sample. Multiple suggestive associations (p<1×10-5), and several enriched pathways were found after FDR correction for both phenotypes in the QNTS; many nominally-significant enriched pathways overlapped between pain problems and anxiety symptoms (uncorrected p<0.05) and yielded results consistent with previous studies of pain or anxiety. The QLSCD and the combined QNTS and QLSCD sample yielded similar findings. We replicated an association between the pathway involved in the regulation of myotube differentiation (GO:0010830) and both pain and anxiety problems in the QLSDC and the combined QNTS and QLSCD sample. Although limited by sample size and thus power, these data provide an initial support to conjoint molecular investigations of adolescent pain and anxiety problems. Understanding the etiology underlying pain and anxiety co-occurrence in this age range is relevant to address the nature of comorbidity and its developmental pathways, and shape intervention. The replication across samples implies that these effects are reliable and possess external validity.
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Affiliation(s)
- Sara Mascheretti
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Child Psychopathology Unit, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy
| | - Diego Forni
- Bioinformatics, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy
| | - Valentina Lampis
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Child Psychopathology Unit, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy
| | - Luca Fumagalli
- Bioinformatics, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy
| | - Stéphane Paquin
- Department of Psychology, The Pennsylvania State University, State College, PA, United States of America
| | - Till F M Andlauer
- Department of Neurology, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Wei Wang
- Centre for Complex Interventions Centre for Addiction and Mental Health, Toronto, Canada
| | - Ginette Dionne
- Ecole de Psychologie, Université Laval, Quebec City, QC, Canada
| | - Mara R Brendgen
- Département de Psychologie, Universite du Quebec a Montreal, Montreal, QC, Canada
| | - Frank Vitaro
- Research Unit for Children's Psychosocial Maladjustment, Montreal, QC, Canada
- School of Psycho-Éducation, Université de Montréal, Québec City, QC, Canada
| | - Isabelle Ouellet-Morin
- School of Criminology, University of Montreal & Research Center of the Montreal Mental Health University Institute, Montreal, Canada
| | - Guy Rouleau
- Montreal Neurological Institute-Hospital, McGill University, Montreal, QC, Canada
| | | | - Sylvana Côté
- Département de Médecine Sociale et Préventive, Université de Montreal, Montreal, QC, Canada
| | - Richard E Tremblay
- Départements de Pédiatrie et de Psychologie, Université de Montreal, Montreal, QC, Canada
| | - Gustavo Turecki
- Douglas Research Centre, McGill University, Montreal, QC, Canada
| | | | - Michel Boivin
- Ecole de Psychologie, Université Laval, Quebec City, QC, Canada
| | - Marco Battaglia
- Child, Youth and Emerging Adults Programme Centre for Addiction and Mental Health, Toronto, Canada
- Department of Psychiatry, University of Toronto, Toronto, Canada
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11
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Li B, Guo Y, Deng Y, Zhao S, Li C, Yang J, Li Q, Yan Y, Li F, Li X, Rong S. Association of social support with cognition among older adults in China: A cross-sectional study. Front Public Health 2022; 10:947225. [PMID: 36225770 PMCID: PMC9548585 DOI: 10.3389/fpubh.2022.947225] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/29/2022] [Indexed: 01/21/2023] Open
Abstract
Objective This study aimed to examine the relationship between social support and its sub-domains and cognitive performance, and the association with cognitive impairment among older adults in China. Design A cross-sectional study. Setting and participants We included 865 community-based individuals aged 65 and above from Hubei province, China. Methods The level of social support was evaluated using the social support rating scale (SSRC). The Mini-Mental State Examination was adopted to assess cognitive function, and its cut-offs were used to determine cognitive impairment among the participants. Multiple linear regression models and logistic regression models were used to estimate the β and odds ratios (ORs) and their 95% CIs, respectively. Results The participants were divided into quartiles 1-4 (Q1-Q4), according to the total scores of SSRC. After adjusting for sociodemographic characteristics, lifestyle factors, and history of diseases, for MMSE scores, compared to these in Q1, the β of Q2-Q4 were -0.22 (-0.88, 0.43), 0.29 (-0.35, 0.94), and 0.86 (0.19, 1.53), respectively; For cognitive impairment, the ORs of Q2-Q4 were 1.21 (0.80, 1.82), 0.62 (0.40, 0.94), and 0.50 (0.32, 0.80), respectively. Considering SSRC scores as the continuous variable, per 1-unit increase, the β was 0.05 (0.02, 0.09) for the cognitive score, and the OR was 0.95 (0.92, 0.98) for cognitive impairment. In addition, higher levels of both subjective support and support utilization were related to better MMSE performance and lower risks of cognitive impairment. Conclusion and implications Among the older adults in China, as expected, there is a positive relationship between social support and cognitive performance, and high levels of social support, particularly in support utilization, were related to low risks of cognitive impairment. More social support should be provided in this population to improve cognitive function and reduce the risks of cognitive impairment.
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Affiliation(s)
- Benchao Li
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Academy of Nutrition and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Yan Guo
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Yan Deng
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Academy of Nutrition and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Siqi Zhao
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Changfeng Li
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Jiajia Yang
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Academy of Nutrition and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Qiuying Li
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Academy of Nutrition and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Yaqiong Yan
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Fang Li
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Xiaonuan Li
- Wuhan Municipal Health Commission, Wuhan, China
| | - Shuang Rong
- Department of Nutrition Hygiene and Toxicology, School of Public Health, Medical College, Academy of Nutrition and Health, Wuhan University of Science and Technology, Wuhan, China
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12
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Grigoryan GA, Pavlova IV, Zaichenko MI. Effects of Social Isolation on the Development of Anxiety and Depression-Like Behavior in Model Experiments in Animals. Neurosci Behav Physi 2022; 52:722-738. [PMID: 36119650 PMCID: PMC9471030 DOI: 10.1007/s11055-022-01297-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/02/2021] [Indexed: 11/24/2022]
Abstract
This review describes the role of social isolation in the development of anxiety and depression-like behavior in rodents. The duration of social isolation, age from onset of social isolation, sex, species, and strain of animals, the nature of the model used, and other factors have been shown to have influences. The molecular-cellular mechanisms of development of anxiety and depression-like behavior under the influence of social isolation and the roles of the HHAS, oxidative and nitrosative stress, neuroinflammation, BDNF, neurogenesis, synaptic plasticity, as well as monoamines in these mechanisms are discussed. This review presents data on sex differences in the effects of social isolation, along with the effects of interactions with other types of stress, and the roles of an enriched environment and other factors in ameliorating the negative sequelae of social isolation.
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Affiliation(s)
- G. A. Grigoryan
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - I. V. Pavlova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
| | - M. I. Zaichenko
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, Russia
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13
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Garrido A, Martínez de Toda I, Díaz Del Cerro E, Félix J, Ceprián N, González-Sánchez M, De la Fuente M. Social Environment as a Modulator of Immunosenescence. Expert Rev Mol Med 2022;:1-75. [PMID: 35912691 DOI: 10.1017/erm.2022.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Desai RI, Limoli CL, Stark CEL, Stark SM. Impact of spaceflight stressors on behavior and cognition: A molecular, neurochemical, and neurobiological perspective. Neurosci Biobehav Rev 2022; 138:104676. [PMID: 35461987 DOI: 10.1016/j.neubiorev.2022.104676] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 03/15/2022] [Accepted: 04/18/2022] [Indexed: 11/19/2022]
Abstract
The response of the human body to multiple spaceflight stressors is complex, but mounting evidence implicate risks to CNS functionality as significant, able to threaten metrics of mission success and longer-term behavioral and neurocognitive health. Prolonged exposure to microgravity, sleep disruption, social isolation, fluid shifts, and ionizing radiation have been shown to disrupt mechanisms of homeostasis and neurobiological well-being. The overarching goal of this review is to document the existing evidence of how the major spaceflight stressors, including radiation, microgravity, isolation/confinement, and sleep deprivation, alone or in combination alter molecular, neurochemical, neurobiological, and plasma metabolite/lipid signatures that may be linked to operationally-relevant behavioral and cognitive performance. While certain brain region-specific and/or systemic alterations titrated in part with neurobiological outcome, variations across model systems, study design, and the conspicuous absence of targeted studies implementing combinations of spaceflight stressors, confounded the identification of specific signatures having direct relevance to human activities in space. Summaries are provided for formulating new research directives and more predictive readouts of portending change in neurobiological function.
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Affiliation(s)
- Rajeev I Desai
- Harvard Medical School, McLean Hospital, Behavioral Biology Program, Belmont, MA 02478, USA.
| | - Charles L Limoli
- Department of Radiation Oncology, University of California Irvine, Medical Sciences I, B146B, Irvine, CA 92697, USA
| | - Craig E L Stark
- Department of Neurobiology of Behavior, University of California Irvine, 1400 Biological Sciences III, Irvine, CA 92697, USA
| | - Shauna M Stark
- Department of Neurobiology of Behavior, University of California Irvine, 1400 Biological Sciences III, Irvine, CA 92697, USA
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15
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Gryksa K, Neumann ID. Consequences of pandemic-associated social restrictions: Role of social support and the oxytocin system. Psychoneuroendocrinology 2022; 135:105601. [PMID: 34837776 PMCID: PMC8605825 DOI: 10.1016/j.psyneuen.2021.105601] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 12/15/2022]
Abstract
During pandemics, governments take drastic actions to prevent the spreading of the disease, as seen during the present COVID-19 crisis. Sanctions of lockdown, social distancing and quarantine urge people to exclusively work and teach at home and to restrict social contacts to a minimum; lonely people get into further isolation, while families` nerves are strained to the extreme. Overall, this results in a dramatic and chronic increase in the level of psychosocial stress over several months mainly caused by i) social isolation and ii) psychosocial stress associated with overcrowding, social tension in families, and domestic violence. Moreover, pandemic-associated social restrictions are accompanied by loss of an essential stress buffer and important parameter for general mental and physical health: social support. Chronic psychosocial stress and, in particular, social isolation and lack of social support affect not only mental health, but also the brain oxytocin system and the immune system. Hence, pandemic-associated social restrictions are expected to increase the risk of developing psychopathologies, such as depression, anxiety-related and posttraumatic stress disorders, on the one hand, but also to induce a general inflammatory state and to impair the course of infectious disorders on the other. Due to its pro-social and stress-buffering effects, resulting in an anti-inflammatory state in case of disease, the role of the neuropeptide oxytocin will be discussed and critically considered as an emerging treatment option in cases of pandemic-induced psychosocial stress, viral infection and during recovery. In this review, we aim to critically focus on possible short- and long-term consequences of social restrictions on mental health and the immune system, while discussion oxytocin as a possible treatment option.
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Affiliation(s)
- Katharina Gryksa
- Department of Behavioural and Molecular Neurobiology, University of Regensburg, Regensburg, Germany.
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16
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Dion A, Muñoz PT, Franklin TB. Epigenetic mechanisms impacted by chronic stress across the rodent lifespan. Neurobiol Stress 2022; 17:100434. [PMID: 35198660 PMCID: PMC8841894 DOI: 10.1016/j.ynstr.2022.100434] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 01/27/2023] Open
Abstract
Exposures to stress at all stages of development can lead to long-term behavioural effects, in part through changes in the epigenome. This review describes rodent research suggesting that stress in prenatal, postnatal, adolescent and adult stages leads to long-term changes in epigenetic regulation in the brain which have causal impacts on rodent behaviour. We focus on stress-induced epigenetic changes that have been linked to behavioural deficits including poor learning and memory, and increased anxiety-like and depressive-like behaviours. Interestingly, aspects of these stress-induced behavioural changes can be transmitted to offspring across several generations, a phenomenon that has been proposed to result via epigenetic mechanisms in the germline. Here, we also discuss evidence for the differential impact of stress on the epigenome in males and females, conscious of the fact that the majority of published studies have only investigated males. This has led to a limited picture of the epigenetic impact of stress, highlighting the need for future studies to investigate females as well as males.
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17
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Cai H, Zhang P, Qi G, Zhang L, Li T, Li M, Lv X, Lei J, Ming J, Tian B. Systematic Input-Output Mapping Reveals Structural Plasticity of VTA Dopamine Neurons-Zona Incerta Loop Underlying the Social Buffering Effects in Learned Helplessness. Mol Neurobiol 2021; 59:856-871. [PMID: 34796463 DOI: 10.1007/s12035-021-02614-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/19/2021] [Indexed: 11/28/2022]
Abstract
A common phenomenon called social buffering (SB), communication within conspecific animals is a benefit for a stressed individual to better recover from aversive events, is crucial to all mammals. Although the dopamine reward system has been implicated in SB, it is not clear which neuronal populations are relevant and how they contribute. Here, we adopted a learned helplessness (LH) animal model of depression and found that LH subjects housed with a conspecific partner show better performance in the shuttle box test, showing that SB improves the stress-coping abilities to deal with stress. Bidirectional manipulation of ventral tegmental area (VTA) dopamine neurons by chemogenetic tools can mimic or block the SB effect in LH mice. To screen for SB-induced structure plasticity of VTA dopamine neurons, we employed viral genetic tools for mapping input and output architecture and found LH- and SB-triggered circuit-level changes in neuronal ensembles. Zona incerta (ZI), an overlapping brain region, was significantly changed in both anterograde and retrograde tracing during LH and SB. These results reveal a neural loop with structural plasticity between VTA dopamine neurons and ZI underlies the SB effects in LH and lays a foundation for studying how VTA dopamine neurons regulate SB-related neural circuits.
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Affiliation(s)
- Hongwei Cai
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Pei Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
- Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Guangjian Qi
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
- Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Lijun Zhang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Tongxia Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Ming Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Xinyuan Lv
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Jie Lei
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China
| | - Jie Ming
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430022, People's Republic of China.
| | - Bo Tian
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China.
- Institute for Brain Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, People's Republic of China.
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan, Hubei Province, 430030, People's Republic of China.
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18
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Cahill B, Poelker-Wells S, Prather JF, Li Y. A Glimpse Into the Sexual Dimorphisms in Major Depressive Disorder Through Epigenetic Studies. Front Neural Circuits 2021; 15:768571. [PMID: 34744641 PMCID: PMC8564393 DOI: 10.3389/fncir.2021.768571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/28/2021] [Indexed: 11/13/2022] Open
Abstract
Depression is an umbrella term used to describe a mood disorder with a broad spectrum of symptoms including a persistent feeling of sadness, loss of interest, and deficits in social behavior. Epigenetic research bridges the environmental and genetic landscape and has the potential to exponentially improve our understanding of such a complex disorder. Depression is also a sexually dimorphic disorder and variations exist within epigenetic modification sites between sexes. These sex-specific mediators may impact behavioral symptomology and could serve as therapeutic targets for treatments to improve behavioral deficits. This mini review will focus on the social behavior perspective of depression and specifically explore the sexually different epigenetic modifications on depression.
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Affiliation(s)
- Branden Cahill
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Samuel Poelker-Wells
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Jonathan F Prather
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Yun Li
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
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19
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Bayassi-Jakowicka M, Lietzau G, Czuba E, Steliga A, Waśkow M, Kowiański P. Neuroplasticity and Multilevel System of Connections Determine the Integrative Role of Nucleus Accumbens in the Brain Reward System. Int J Mol Sci 2021; 22:9806. [PMID: 34575969 DOI: 10.3390/ijms22189806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 12/27/2022] Open
Abstract
A growing body of evidence suggests that nucleus accumbens (NAc) plays a significant role not only in the physiological processes associated with reward and satisfaction but also in many diseases of the central nervous system. Summary of the current state of knowledge on the morphological and functional basis of such a diverse function of this structure may be a good starting point for further basic and clinical research. The NAc is a part of the brain reward system (BRS) characterized by multilevel organization, extensive connections, and several neurotransmitter systems. The unique role of NAc in the BRS is a result of: (1) hierarchical connections with the other brain areas, (2) a well-developed morphological and functional plasticity regulating short- and long-term synaptic potentiation and signalling pathways, (3) cooperation among several neurotransmitter systems, and (4) a supportive role of neuroglia involved in both physiological and pathological processes. Understanding the complex function of NAc is possible by combining the results of morphological studies with molecular, genetic, and behavioral data. In this review, we present the current views on the NAc function in physiological conditions, emphasizing the role of its connections, neuroplasticity processes, and neurotransmitter systems.
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20
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Arsenault E, Lavigne AA, Mansouri S, Gagné AM, Francis K, Bittar TP, Quessy F, Abdallah K, Barbeau A, Hébert M, Labonté B. Sex-Specific Retinal Anomalies Induced by Chronic Social Defeat Stress in Mice. Front Behav Neurosci 2021; 15:714810. [PMID: 34483859 PMCID: PMC8415161 DOI: 10.3389/fnbeh.2021.714810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/20/2021] [Indexed: 01/04/2023] Open
Abstract
Major depressive disorder (MDD) is one of the most common consequences of chronic stress. Still, there is currently no reliable biomarker to detect individuals at risk to develop the disease. Recently, the retina emerged as an effective way to investigate psychiatric disorders using the electroretinogram (ERG). In this study, cone and rod ERGs were performed in male and female C57BL/6 mice before and after chronic social defeat stress (CSDS). Mice were then divided as susceptible or resilient to stress. Our results suggest that CSDS reduces the amplitude of both oscillatory potentials and a-waves in the rods of resilient but not susceptible males. Similar effects were revealed following the analysis of the cone b-waves, which were faster after CSDS in resilient mice specifically. In females, rod ERGs revealed age-related changes with no change in cone ERGs. Finally, our analysis suggests that baseline ERG can predict with an efficacy up to 71% the expression of susceptibility and resilience before stress exposition in males and females. Overall, our findings suggest that retinal activity is a valid biomarker of stress response that could potentially serve as a tool to predict whether males and females will become susceptible or resilient when facing CSDS.
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Affiliation(s)
- Eric Arsenault
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Andrée-Anne Lavigne
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada
| | - Samaneh Mansouri
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Social and Preventive Medicine, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Anne-Marie Gagné
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada
| | - Kimberley Francis
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada
| | - Thibault P Bittar
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Francis Quessy
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Khaled Abdallah
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada
| | - Annie Barbeau
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada
| | - Marc Hébert
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Ophthalmology and Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
| | - Benoit Labonté
- CERVO Brain Research Centre, Centre Intégré Universitaire de Santé et des Services Sociaux de la Capitale Nationale, Quebec City, QC, Canada.,Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Quebec City, QC, Canada
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21
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Rodriguez FS, Hussenoeder FS, Spilski J, Conrad I, Riedel-Heller SG. Evaluation of a multidisciplinary concept of mental demands at work on cognitive functioning in old age. Aging Ment Health 2021; 25:1649-1658. [PMID: 32347107 DOI: 10.1080/13607863.2020.1758918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Previous work has shown that high mental demands are associated with better cognitive functioning in old age. As there is a lack of a general conceptual framework for this association, the aim of the study was to investigate how mental demands and other work-related factors relate to cognitive functioning as a foundation for developing such a framework. METHODS An expert panel discussion was conducted with the aim of determining relevant work-related factors, which were then tested in a survey with 346 employees aged 50+ years, who were actively working. Assessment of cognitive functioning comprised complex attention, executive function, learning/memory, language, perceptual-motor, and social cognition. Confirmatory factor analysis was conducted to confirm factor belonging. Associations with cognitive functioning were analyzed using structure equation modelling to confirm associations and to identify additional direct and indirect paths. RESULTS Only 42.3% (22/52) of the work-related factors and 19.0% (4/21) of the mediating paths suggested by the experts were significant with respect to cognitive functioning. Factor analysis and structural equation modeling indicated that high mental demands are only associated with better cognitive functioning in old age to the extent that they are intellectually stimulating and this effect is embedded in individual capacities and the social context. CONCLUSION Based on the panel discussion and the empirical testing, we propose the Conceptual Framework of Social Dependency of Intellectual Stimulation on Cognitive Health. We recommend researchers and workplace health experts to pay attention to the component of this theory when assessing workplace risk.
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Affiliation(s)
- Francisca S Rodriguez
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany.,German Center for Neurodegenerative Diseases (DZNE), Greifswald, Germany.,Center for Cognitive Science, University of Kaiserslautern, Kaiserslautern, Germany
| | - Felix S Hussenoeder
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Jan Spilski
- Center for Cognitive Science, University of Kaiserslautern, Kaiserslautern, Germany
| | - Ines Conrad
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Steffi G Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
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22
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Zhou C, Liu M, Mei X, Li Q, Zhang W, Deng P, He Z, Xi Y, Tong T, Pi H, Lu Y, Chen C, Zhang L, Yu Z, Zhou Z, He M. Histone hypoacetylation contributes to neurotoxicity induced by chronic nickel exposure in vivo and in vitro. Sci Total Environ 2021; 783:147014. [PMID: 34088129 DOI: 10.1016/j.scitotenv.2021.147014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/04/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Nickel (Ni) is a heavy metal that is both an environmental pollutant and a threat to human health. However, the effects of Ni on the central nervous system in susceptible populations have not been well established. In the present study, the neurotoxicity of Ni and its underlying mechanism were investigated in vivo and in vitro. Ni exposure through drinking water (10 mg Ni/L, 12 weeks) caused learning and memory impairment in mice. Reduced dendrite complexity was observed in both Ni-exposed mouse hippocampi and Ni-treated (200 μM, 72 h) primary cultured hippocampal neurons. The levels of histone acetylation, especially at histone H3 lysine 9 (H3K9ac), were reduced in Ni-exposed mouse hippocampi and cultured neurons. RNA sequencing and chromatin immunoprecipitation (ChIP) sequencing analyses revealed that H3K9ac-modulated gene expression were downregulated. Treatment with sodium butyrate, a histone deacetylase inhibitor, attenuated Ni-induced H3K9 hypoacetylation, neural gene downregulation and dendrite complexity reduction in cultured neurons. Sodium butyrate also restored Ni-induced memory impairment in mice. These results indicate that Ni-induced H3K9 hypoacetylation may be a contributor to the neurotoxicity of Ni. The finding that Ni disturbs histone acetylation in the nervous system may provide new insight into the health risk of chronic Ni exposure.
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Affiliation(s)
- Chao Zhou
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Mengyu Liu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China; Department of Medical Laboratory, General Hospital of the Central Theater Command of the Chinese People's Liberation Army, 430070 Wuhan, People's Republic of China
| | - Xiang Mei
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Qian Li
- Department of Otolaryngology Head and Neck Surgery, Xinqiao Hospital, Army Medical University, 400037 Chongqing, People's Republic of China
| | - Wenjuan Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Ping Deng
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhixin He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yu Xi
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Tong Tong
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Yonghui Lu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China.
| | - Mindi He
- Department of Occupational Health, Army Medical University, 400038 Chongqing, People's Republic of China.
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23
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Miyanishi H, Muramatsu SI, Nitta A. Striatal Shati/Nat8l-BDNF pathways determine the sensitivity to social defeat stress in mice through epigenetic regulation. Neuropsychopharmacology 2021; 46:1594-1605. [PMID: 34099867 PMCID: PMC8280178 DOI: 10.1038/s41386-021-01033-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/02/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022]
Abstract
The global number of patients with depression increases in correlation to exposure to social stress. Chronic stress does not trigger depression in all individuals, as some remain resilient. The underlying molecular mechanisms that contribute to stress sensitivity have been poorly understood, although revealing the regulation of stress sensitivity could help develop treatments for depression. We previously found that striatal Shati/Nat8l, an N-acetyltransferase, was increased in a depression mouse model. We investigated the roles of Shati/Nat8l in stress sensitivity in mice and found that Shati/Nat8l and brain-derived neurotrophic factor (BDNF) levels in the dorsal striatum were increased in stress-susceptible mice but not in resilient mice exposed to repeated social defeat stress (RSDS). Knockdown of Shati/Nat8l in the dorsal striatum induced resilience to RSDS. In addition, blockade of BDNF signaling in the dorsal striatum by ANA-12, a BDNF-specific receptor tropomyosin-receptor-kinase B (TrkB) inhibitor, also induced resilience to stress. Shati/Nat8l is correlated with BDNF expression after RSDS, and BDNF is downstream of Shati/Nat8l pathways in the dorsal striatum; Shati/Nat8l is epigenetically regulated by BDNF via histone acetylation. Our results demonstrate that striatal Shati/Nat8l-BDNF pathways determine stress sensitivity through epigenetic regulation. The striatal Shati/Nat8l-BDNF pathway could be a novel target for treatments of depression and could establish a novel therapeutic strategy for depression patients.
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Affiliation(s)
- Hajime Miyanishi
- grid.267346.20000 0001 2171 836XDepartment of Pharmaceutical Therapy and Neuropharmacology, Faculty of Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Shin-ichi Muramatsu
- grid.410804.90000000123090000Division of Neurological Gene Therapy, Open Innovation Center, Jichi Medical University, Shimotsuke, Japan ,grid.26999.3d0000 0001 2151 536XCenter for Gene and Cell Therapy, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Atsumi Nitta
- Department of Pharmaceutical Therapy and Neuropharmacology, Faculty of Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, University of Toyama, Toyama, Japan.
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24
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Pereiro AX, Dosil-Díaz C, Mouriz-Corbelle R, Pereira-Rodríguez S, Nieto-Vieites A, Pinazo-Hernandis S, Pinazo-Clapés C, Facal D. Impact of the COVID-19 Lockdown on a Long-Term Care Facility: The Role of Social Contact. Brain Sci 2021; 11:brainsci11080986. [PMID: 34439605 PMCID: PMC8394115 DOI: 10.3390/brainsci11080986] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Long-term care facilities (LTCFs) have been harmed by the coronavirus, and older adults have remained isolated for a long time with many restrictions. The aim of this study was to measure the decline in cognitive, functional, and affective status in a care facility after the lockdown in the first wave of the COVID-19 pandemic and to compare it with previous measures in order to determine if this decline was accelerated. (2) Methods: Ninety-eight participants were recruited. Data from three retrospective pre-lockdown assessments and an additional post-lockdown assessment were analyzed. Mixed ANOVA analyses were performed according to the Clinical Dementia Rating levels, considering social-contact frequency during the lockdown as a covariate. (3) Results: The cognitive and functional scores were lower and depression scores were higher after the strict lockdown, accelerating a general pattern of decline that was already present in LTCF residents. The frequency of social contact eliminated the measurement differences in the cognitive and functional scores and the group differences in depression scores. (4) Conclusions: The effects of the SARS-CoV-2 lockdown in an LTCF were mediated by the frequency of contact. Clinical implications: Preventive measures must be taken to ensure social contact with relatives and friends and reduce the negative consequences of social isolation in LTCFs.
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Affiliation(s)
- Arturo X. Pereiro
- Department of Developmental Psychology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.X.P.); (C.D.-D.); (R.M.-C.); (A.N.-V.)
| | - Carlos Dosil-Díaz
- Department of Developmental Psychology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.X.P.); (C.D.-D.); (R.M.-C.); (A.N.-V.)
- Gerontological Therapeutic Complex “A Veiga”, Serge Lucense, 27360 Láncara, Spain;
| | - Romina Mouriz-Corbelle
- Department of Developmental Psychology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.X.P.); (C.D.-D.); (R.M.-C.); (A.N.-V.)
- Gerontological Therapeutic Complex “A Veiga”, Serge Lucense, 27360 Láncara, Spain;
| | | | - Ana Nieto-Vieites
- Department of Developmental Psychology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.X.P.); (C.D.-D.); (R.M.-C.); (A.N.-V.)
| | | | | | - David Facal
- Department of Developmental Psychology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (A.X.P.); (C.D.-D.); (R.M.-C.); (A.N.-V.)
- Correspondence: ; Tel.: +34-881-819-695
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25
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Acero-Castillo MC, Ardila-Figueroa MC, Botelho de Oliveira S. Anhedonic Type Behavior and Anxiety Profile of Wistar-UIS Rats Subjected to Chronic Social Isolation. Front Behav Neurosci 2021; 15:663761. [PMID: 34122025 PMCID: PMC8192826 DOI: 10.3389/fnbeh.2021.663761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/26/2021] [Indexed: 01/17/2023] Open
Abstract
Chronic Social Isolation (CSI) is a model of prolonged stress employed in a variety of studies to induce depression and anxious behavior in rats. The present study aims to evaluate the effect of CSI on male Wistar rats in terms of "anhedonic-type" behavior in the Sucrose Preference Test (SPT) and anxiogenic profile in the elevated-plus-maze (EPM) test, as well as evaluating the effect of resocialization upon sucrose consumption. A total of 24 adolescent male Wistar rats were evaluated. The animals were housed either together (communally) or socially isolated for 21 days, and then exposed for four consecutive days to the SPT test [water vs. a 32% sucrose solution (SS)]. Four days later, they were again subjected to the SPT test (32% vs. 0.7% SS), and then tested on the EPM apparatus 3 days later. Following the completion of the anxiogenic profile of the model, the animals were resocialized for 72 h and then re-tested once again using the SPT (32% vs. 0.7% SS). Twenty-four hours after this final consumption, the animals were euthanized to record the weight of their adrenal glands (AG). It was found that exposure to CSI produces anhedonic-type behavior and an anxiogenic profile in adolescent male rats, as evidenced in both the SPT and EPM tests, as well as in the animals' physiological stress response. It was also demonstrated that resocialization does not reverse the anhedonic-type behavior, nor the physiological response to stress.
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Affiliation(s)
- María Camila Acero-Castillo
- Psychology, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia.,Neurosciences and Behavior, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia.,Health Sciences, Universidade de Brasilia, Brasilia, Brazil
| | - María Camila Ardila-Figueroa
- Psychology, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia.,Neurosciences and Behavior, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia
| | - Silvia Botelho de Oliveira
- Neurosciences and Behavior, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia.,Psychology, Universidade Estadual Paulista, São Paulo, Brazil.,Psychobiology, Universidade de São Paulo, São Paulo, Brazil.,Faculty of Psychology, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia.,Laboratory of Neurosciences and Behavior, Universidad Pontificia Bolivariana Sectional Bucaramanga, Santander, Colombia
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26
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Krueger LD, Chang SE, Motoc M, Chojecki M, Freeman ZT, Flagel SB. Effects of Pair Housing on Patency of Jugular Catheters in Rats ( Rattus norvegicus). J Am Assoc Lab Anim Sci 2021; 60:357-364. [PMID: 33863401 DOI: 10.30802/aalas-jaalas-20-000071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Chronic vascular access devices are widely used in a variety of species for repeated blood sampling or substance administration. Jugular catheters are commonly used for studying addiction-related behaviors in rats. Rats with catheters have historically been individually housed for the duration of the study to prevent cage mates from damaging the catheter. The 2 goals of this study were to determine 1) the effects of pair housing on catheter patency and 2) the effects of pair housing on catheter patency of rats in a study of opioid self-administration and cue-induced reinstatement of opioid-seeking behavior. The latter study also represented an opportunity for experimental refinement as it evaluated the temporary use of a barrier that allowed for pair-housed rats to be physically separated. Male Heterogeneous Stock (HS; n = 24) and Sprague-Dawley (SD; n = 121) rats were allocated to either single- or pair-housed condition. To assess the effect of social housing on catheter patency, rats (HS, n = 24; SD, n = 36) were monitored in their assigned housing condition for one month, with scheduled evaluation of catheter patency and structural damage. To examine the effect of social housing on catheter patency during a study of opioid self-administration and cue-induced reinstatement of opioid-seeking behavior, rats (SD, n = 85) were monitored in their assigned housing condition with similar routine patency evaluations. Catheter patency rates between single- and pairhoused rats were not statistically different in the first experiment, and pair-housed animals were successfully maintained on an infusion study in the second experiment. The use of a barrier between pair-housed rats after surgery allowed continued social contact with no observed adverse effects. These results suggest that, pair housing is a viable option for rats with chronic vascular implants, and may improve their wellbeing by allowing them to display species-typical social behaviors.
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Affiliation(s)
- Lauren D Krueger
- Unit for Laboratory Animal Medicine, University of Michigan, Ann Arbor, Michigan; Office of Comparative Medicine, University of Utah, Salt Lake City, Utah;,
| | - Stephen E Chang
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan
| | - Michael Motoc
- Undergraduate Biology, Health, and Society Program, University of Michigan, Ann Arbor, Michigan
| | - Maurice Chojecki
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan
| | - Zachary T Freeman
- Unit for Laboratory Animal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Shelly B Flagel
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan; Department of Psychiatry, University of Michigan, Ann Arbor, Michigan
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27
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Jafari Z, Kolb BE, Mohajerani MH. Life-Course Contribution of Prenatal Stress in Regulating the Neural Modulation Network Underlying the Prepulse Inhibition of the Acoustic Startle Reflex in Male Alzheimer's Disease Mice. Cereb Cortex 2021; 30:311-325. [PMID: 31070710 DOI: 10.1093/cercor/bhz089] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The prepulse inhibition (PPI) of the acoustic startle reflex (ASR), as an index of sensorimotor gating, is one of the most extensively used paradigms in the field of neuropsychiatric disorders. Few studies have examined how prenatal stress (PS) regulates the sensorimotor gating during the lifespan and how PS modifies the development of amyloid-beta (Aβ) pathology in brain areas underlying the PPI formation. We followed alternations in corticosterone levels, learning and memory, and the PPI of the ASR measures in APPNL-G-F/NL-G-F offspring of dams exposed to gestational noise stress. In-depth quantifications of the Aβ plaque accumulation were also performed at 6 months. The results indicated an age-dependent deterioration of sensorimotor gating, long-lasting PS-induced abnormalities in PPI magnitudes, as well as deficits in spatial memory. The PS also resulted in a higher Aβ aggregation predominantly in brain areas associated with the PPI modulation network. The findings suggest the contribution of a PS-induced hypothalamic-pituitary-adrenal (HPA) axis hyperactivity in regulating the PPI modulation substrates leading to the abnormal development of the neural protection system in response to disruptive stimuli. The long-lasting HPA axis dysregulation appears to be the major underlying mechanism in precipitating the Aβ deposition, especially in brain areas contributed to the PPI modulation network.
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Affiliation(s)
- Zahra Jafari
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada.,Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Science, Tehran, Iran
| | - Bryan E Kolb
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada
| | - Majid H Mohajerani
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada
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28
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Zhao M, Wang W, Jiang Z, Zhu Z, Liu D, Pan F. Long-Term Effect of Post-traumatic Stress in Adolescence on Dendrite Development and H3K9me2/BDNF Expression in Male Rat Hippocampus and Prefrontal Cortex. Front Cell Dev Biol 2020; 8:682. [PMID: 32850808 PMCID: PMC7412801 DOI: 10.3389/fcell.2020.00682] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/06/2020] [Indexed: 01/10/2023] Open
Abstract
Exposure to a harsh environment in early life increases in the risk of post-traumatic stress disorder (PTSD) of an individual. Brain derived neurotrophic factor (BDNF) plays an important role in neurodevelopment in developmental stages. Both chronic and traumatic stresses induce a decrease in the level of BDNF and reduce neural plasticity, which is linked to the pathogenesis of PTSD. Also, studies have shown that stress alters the epigenetic marker H3K9me2, which can bind to the promoter region of the Bdnf gene and reduce BDNF protein level. However, the long-term effects of traumatic stress during adolescence on H3K9me2, BDNF expression and dendrite development are not well-known. The present study established a model of PTSD in adolescent rats using an inescapable foot shock (IFS) procedure. Anxiety-like behaviors, social interaction behavior and memory function were assessed by the open field test, elevated plus maze test, three-chamber sociability test and Morris water maze test. In addition, neuronal development and H3K9me2/BDNF expression in hippocampus (HIP) and prefrontal cortex (PFC) were evaluated by Golgi staining, western blotting, qRT-PCR analysis and CHIP-qPCR analysis. Additionally, the Unc0642, a small molecule inhibitor of histone methyltransferase (EHMT2) was used for intervention. The results showed that the IFS procedure induced the PTSD-like behaviors in rats, resulted in fewer dendrite branches and shorter dendrite length in CA1 of HIP and PFC, increased H3K9me2 level and decreased BDNF expression in HIP and PFC. Also, although all the changes can persist to adulthood, Unc0642 administration relieved most of alterations. Our study suggests that traumatic stress in adolescence leads to immediate and long-term mental disorders, neuronal morphological changes, lower BDNF level and increased H3K9me2 level in the HIP and PFC, indicating that H3K9me2/BDNF dysfunction plays a key role in pathogenesis of PTSD.
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Affiliation(s)
- Mingyue Zhao
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Wang
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhijun Jiang
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zemeng Zhu
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dexiang Liu
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fang Pan
- Department of Medical Psychology and Medical Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
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29
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Han Z, Wang Y, Qi L, Wang J, Wong J, Chen J, Luo X, Wang QM. Differential Association of Serum BDNF With Poststroke Depression and Poststroke Anxiety. Arch Phys Med Rehabil 2020; 101:1355-1366. [PMID: 32416148 DOI: 10.1016/j.apmr.2020.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/08/2020] [Accepted: 04/19/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To investigate the correlation between brain-derived neurotrophic factor (BDNF) and risk factors, as well as functional outcome in poststroke depression (PSD) or poststroke anxiety (PSA). DESIGN Cohort study. SETTING Stroke patients admitted to an urban rehabilitation hospital. PARTICIPANTS Stroke patients (N=162) without any previous history of depression and anxiety. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Sociodemographic information and comorbidities were recorded during hospital admission. Functional outcomes were assessed using FIM scores at time of admission and discharge. The influence of various factors such as BDNF and patient characteristics on functional outcome was investigated. Single-factor effect was examined using simple logistic regression, as was multi-factor effect using multiple logistic regression. The goodness-of-fit of those regression models was evaluated by the integrated area under ROC curve. RESULTS PSD was diagnosed in 61 (37.7%) patients, and PSA was diagnosed in 40 (24.7%). Multiple logistic analysis showed that BDNF, divorce or separation, and history of smoking were significantly associated with the occurrence of PSD but not with the occurrence of PSA. The model combining low BDNF level and divorce or separation improved the prediction for PSD. Among the variables analyzed for prediction of functional outcome, serum BDNF had a minimum correlation with motor FIM scores in PSD but no significant correlation with motor FIM scores in PSA. CONCLUSIONS BDNF is a valuable prediction for the occurrence of PSD but not for PSA. More strikingly, ischemic stroke patients who are divorced or separated with low serum BDNF have a much higher risk for PSD. BDNF has a minimum correlation with motor function outcome in PSD but no significant correlation with motor outcome in PSA.
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Affiliation(s)
- Zhenxiang Han
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA; Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - Yao Wang
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA; Department of Rehabilitation Medicine, Nan'ao People's Hospital of Shenzhen, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong, P.R. China
| | - Lili Qi
- Department of Emergency, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of TCM, Shanghai, P.R. China
| | - Jiening Wang
- Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - John Wong
- School of Nursing and Department of Occupational Therapy, MGH Institute of Health Professions, Boston, MA
| | - Jiaohua Chen
- Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - Xun Luo
- Department of Rehabilitation Medicine, Nan'ao People's Hospital of Shenzhen, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong, P.R. China; Kerry Rehabilitation Medicine Research Institute, Shenzhen, Guangdong, P.R. China
| | - Qing Mei Wang
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA.
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30
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Abstract
There is increasing evidence that abnormalities in epigenetic mechanisms of gene expression contribute to the pathogenesis of anxiety disorders (ADs). This article discusses the role of epigenetic mechanisms of gene expression in the pathogenesis of ADs. It also discusses the data so far obtained from preclinical and clinical trials on the use of epigenetic drugs for treating ADs. Most drug trials investigating the use of epigenetic drugs for treating ADs have used histone deacetylase inhibitors (HDACi). HDACi are showing favorable results in both preclinical and clinical drug trials for treating ADs. However, at present the mode of action of HDACi in ADs is not clear. More work needs to be done to elucidate how epigenetic dysregulation contributes to the pathogenesis of ADs. More work also needs to be done on the mode of action of HDACi in alleviating the signs and symptoms of ADs.
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Affiliation(s)
- Jacob Peedicayil
- Department of Pharmacology & Clinical Pharmacology, Christian Medical College, Vellore, India
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Miao Z, Wang Y, Sun Z. The Relationships Between Stress, Mental Disorders, and Epigenetic Regulation of BDNF. Int J Mol Sci 2020; 21:ijms21041375. [PMID: 32085670 PMCID: PMC7073021 DOI: 10.3390/ijms21041375] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/01/2020] [Accepted: 02/15/2020] [Indexed: 12/25/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF), a critical member of the neurotrophic family, plays an important role in multiple stress-related mental disorders. Although alterations in BDNF in multiple brain regions of individuals experiencing stress have been demonstrated in previous studies, it appears that a set of elements are involved in the complex regulation. In this review, we summarize the specific brain regions with altered BDNF expression during stress exposure. How various environmental factors, including both physical and psychological stress, affect the expression of BDNF in specific brain regions are further summarized. Moreover, epigenetic regulation of BDNF, including DNA methylation, histone modification, and noncoding RNA, in response to diverse types of stress, as well as sex differences in the sensitivity of BDNF to the stress response, is also summarized. Clarification of the underlying role of BDNF in the stress process will promote our understanding of the pathology of stress-linked mental disorders and provide a potent target for the future treatment of stress-related illness.
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Affiliation(s)
- Zhuang Miao
- Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou 325000, China;
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China;
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Yan Wang
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China;
- School of Life Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongsheng Sun
- Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou 325000, China;
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China;
- School of Life Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
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