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Marcu GM, Băcilă CI, Zăgrean AM. Temporal-Posterior Alpha Power in Resting-State Electroencephalography as a Potential Marker of Complex Childhood Trauma in Institutionalized Adolescents. Brain Sci 2024; 14:584. [PMID: 38928584 PMCID: PMC11201643 DOI: 10.3390/brainsci14060584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
The present study explored whether, given the association of temporal alpha with fear circuitry (learning and conditioning), exposure to complex childhood trauma (CCT) is reflected in the temporal-posterior alpha power in resting-state electroencephalography (EEG) in complex trauma-exposed adolescents in a sample of 25 adolescents and similar controls aged 12-17 years. Both trauma and psychopathology were screened or assessed, and resting-state EEG was recorded following a preregistered protocol for data collection. Temporal-posterior alpha power, corresponding to the T5 and T6 electrode locations (international 10-20 system), was extracted from resting-state EEG in both eyes-open and eyes-closed conditions. We found that in the eyes-open condition, temporal-posterior alpha was significantly lower in adolescents exposed to CCT relative to healthy controls, suggesting that childhood trauma exposure may have a measurable impact on alpha oscillatory patterns. Our study highlights the importance of considering potential neural markers, such as temporal-posterior alpha power, to understanding the long-term consequences of CCT exposure in developmental samples, with possible important clinical implications in guiding neuroregulation interventions.
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Affiliation(s)
- Gabriela Mariana Marcu
- Division of Physiology and Neuroscience, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Psychology, Faculty of Social Sciences and Humanities, “Lucian Blaga” University of Sibiu, 550201 Sibiu, Romania
- Collective of Scientific Research in Neurosciences of the Clinical Psychiatry Hospital “Dr. Gheorghe Preda”, 550082 Sibiu, Romania
| | - Ciprian Ionuț Băcilă
- Collective of Scientific Research in Neurosciences of the Clinical Psychiatry Hospital “Dr. Gheorghe Preda”, 550082 Sibiu, Romania
- Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania
| | - Ana-Maria Zăgrean
- Division of Physiology and Neuroscience, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Fan Z, Gong X, Xu H, Qu Y, Li B, Li L, Yan Y, Wu L, Yan C. Hippocampal parvalbumin and perineuronal nets: Possible involvement in anxiety-like behavior in rats. Hippocampus 2024; 34:156-165. [PMID: 38100162 DOI: 10.1002/hipo.23595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/26/2023] [Accepted: 12/03/2023] [Indexed: 02/20/2024]
Abstract
The excitatory-inhibitory imbalance has been considered an important mechanism underlying stress-related psychiatric disorders. In the present study, rats were exposed to 6 days of inescapable foot shock (IFS) to induce stress. The open field test and elevated plus maze test showed that IFS-exposed rats exhibited increased anxiety-like behavior. Immunofluorescence showed that IFS rats had a decreased density of GAD67-immunoreactive interneurons in the dorsal hippocampal CA1 region, while no significant change in the density of CaMKIIα-immunoreactive glutamatergic neurons was seen. We investigated the expression of different interneuron subtype markers, including parvalbumin (PV), somatostatin (SST), and calretinin (CR), and noted a marked decline in the density of PV-immunoreactive interneurons in the dorsal CA1 region of IFS rats. The perineuronal net (PNN) is a specialized extracellular matrix structure primarily around PV interneurons. We used Wisteria floribunda agglutinin lectin to label the PNNs and observed that IFS rats had an increased proportion of PNN-coated PV-positive interneurons in CA1. The number of PSD95-positive excitatory synaptic puncta on the soma of PNN-free PV-positive interneurons was significantly higher than that of PNN-coated PV-positive interneurons. Our findings suggest that the effect of IFS on the hippocampal GABAergic interneurons could be cell-type-specific. Loss of PV phenotype in the dorsal hippocampal CA1 region may contribute to anxiety in rats. The dysregulated PV-PNN relationship in CA1 after traumatic stress exposure might represent one of the neurobiological correlates of the observed anxiety-like behavior.
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Affiliation(s)
- Zhixin Fan
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiayu Gong
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hanfang Xu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yue Qu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bozhi Li
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lanxin Li
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuqi Yan
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lili Wu
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Can Yan
- Research Center for Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
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Teng Y, Niu J, Liu Y, Wang H, Chen J, Kong Y, Wang L, Lian B, Wang W, Sun H, Yue K. Ketamine alleviates fear memory and spatial cognition deficits in a PTSD rat model via the BDNF signaling pathway of the hippocampus and amygdala. Behav Brain Res 2024; 459:114792. [PMID: 38048914 DOI: 10.1016/j.bbr.2023.114792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND Post-traumatic stress disorder (PTSD) is associated with traumatic stress experiences. This condition can be accompanied by learning and cognitive deficits. Studies have demonstrated that ketamine can rapidly and significantly alleviate symptoms in patients with chronic PTSD. Nonetheless, the effects of ketamine on neurocognitive impairment and its mechanism of action in PTSD remain unclear. METHODS In this study, different concentrations of ketamine (5, 10, 15, and 20 mg/kg, i.p.) were evaluated in rat models of single prolonged stress and electrophonic shock (SPS&S). Expression levels of brain-derived neurotrophic factor (BDNF) and post-synaptic density-95 (PSD-95) in the hippocampus (HIP) and amygdala (AMG) were determined by Western blot analysis and immunohistochemistry. RESULTS The data showed that rats subjected to SPS&S exhibited significant PTSD-like cognitive impairment. The effect of ketamine on SPS&S-induced neurocognitive function showed a U-shaped dose effect in rats. A single administration of ketamine at a dosage of 10-15 mg/kg resulted in significant changes in behavioral outcomes. These manifestations of improvement in cognitive function and molecular changes were reversed at high doses (15-20 mg/kg). CONCLUSION Overall, ketamine reversed SPS&S-induced fear and spatial memory impairment and the down-regulation of BDNF and BDNF-related PSD-95 signaling in the HIP and AMG. A dose equal to 15 mg/kg rapidly reversed the behavioral and molecular changes and promoted the amelioration of cognitive dysfunction. The enhanced association of BDNF signaling with PSD-95 effects could be involved in the therapeutic efficiency of ketamine for PTSD.
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Affiliation(s)
- Yue Teng
- School of Psychology, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - JiaYao Niu
- School of Clinical Medicine, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - Yang Liu
- School of Psychology, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - Han Wang
- School of Psychology, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - JinHong Chen
- School of Continuing Education, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - YuJia Kong
- School of Public Health, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - Ling Wang
- Clinical Competency Training Center, Medical experiment and training center, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - Bo Lian
- Department of Bioscience and Technology, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China
| | - WeiWen Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100864, PR China
| | - HongWei Sun
- School of Psychology, Weifang Medical University, 7166# Baotong West Street, Weifang, Shandong 261053, PR China.
| | - KuiTao Yue
- The Medical imaging Center, Affiliated Hospital of Weifang Medical University, 2428# Yuhe Road, Weifang, Shandong 261053, PR China.
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Skolariki K, Vlamos P. Exploring gene-drug interactions for personalized treatment of post-traumatic stress disorder. Front Comput Neurosci 2024; 17:1307523. [PMID: 38274128 PMCID: PMC10808814 DOI: 10.3389/fncom.2023.1307523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
Introduction Post-Traumatic Stress Disorder (PTSD) is a mental disorder that can develop after experiencing traumatic events. The aim of this work is to explore the role of genes and genetic variations in the development and progression of PTSD. Methods Through three methodological approaches, 122 genes and 184 Single Nucleotide Polymorphisms (SNPs) associated with PTSD were compiled into a single gene repository for PTSD. Using PharmGKB and DrugTargetor, 323 drug candidates were identified to target these 122 genes. The top 17 drug candidates were selected based on the statistical significance of the genetic associations, and their promiscuity (number of associated genestargets) and were further assessed for their suitability in terms of bioavailability and drug-like characteristics. Through functional analysis, insights were gained into the biological processes, cellular components, and molecular functions involved in PTSD. This formed the foundation for the next aspect of this study which was to propose an efficient treatment for PTSD by exploring drug repurposing methods. Results The main aim was to identify the drugs with the most favorable profile that can be used as a pharmacological approach for PTSD treatment. More in particular, according to the genetic variations present in each individual, the relevant biological pathway can be identified, and the drug candidate proposed will specifically target said pathway, accounting for the personalized aspect of this work. The results showed that the drugs used as off-label treatment for PTSD have favorable pharmacokinetic profiles and the potential drug candidates that arose from DrugTargetor were not very promising. Clozapine showed a promising pharmacokinetic profile and has been linked with decreased psychiatric symptoms. Ambrucin also showed a promising pharmacokinetic profile but has been mostly linked with cancer treatment.
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Affiliation(s)
| | - Panagiotis Vlamos
- Bioinformatics and Human Electrophysiology Laboratory, Department of Informatics, Ionian University, Corfu, Greece
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Peng X, Chen P, Zhang Y, Wu K, Ji N, Gao J, Wang H, Zhang Y, Xu T, Hua R. MPP2 interacts with SK2 to rescue the excitability of glutamatergic neurons in the BLA and facilitate the extinction of conditioned fear in mice. CNS Neurosci Ther 2024; 30:e14362. [PMID: 37469037 PMCID: PMC10805397 DOI: 10.1111/cns.14362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 05/29/2023] [Accepted: 07/03/2023] [Indexed: 07/21/2023] Open
Abstract
AIMS The basolateral amygdala (BLA) plays an integral role in anxiety disorders (such as post traumatic stress disorder) stem from dysregulated fear memory. The excitability of glutamatergic neurons in the BLA correlates with fear memory, and the afterhyperpolarization current (IAHP ) mediated by small-conductance calcium-activated potassium channel subtype 2 (SK2) dominates the excitability of glutamatergicneurons. This study aimed to explore the effect of MPP2 interacts with SK2 in the excitability of glutamatergic neurons in the BLA and the extinction of conditioned fear in mice. METHODS Fear memory was analyzed via freezing percentage. Western blotting and fluorescence quantitative PCR were used to determine the expression of protein and mRNA respectively. Electrophysiology was employed to measure the excitability of glutamatergic neurons and IAHP . RESULTS Fear conditioning decreased the levels of synaptic SK2 channels in the BLA, which were restored following fear extinction. Notably, reduced expression of synaptic SK2 channels in the BLA during fear conditioning was caused by the increased activity of protein kinase A (PKA), while increased levels of synaptic SK2 channels in the BLA during fear extinction were mediated by interactions with membrane-palmitoylated protein 2 (MPP2). CONCLUSIONS Our results revealed that MPP2 interacts with the SK2 channels and rescues the excitability of glutamatergic neurons by increasing the expression of synaptic SK2 channels in the BLA to promote the normalization of anxiety disorders and provide a new direction for the treatment.
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Affiliation(s)
- Xiaohan Peng
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Panpan Chen
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
- Anesthesiology DepartmentJiangsu Province HospitalNanjingChina
| | - Yang Zhang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Ke Wu
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Ningning Ji
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Jinghua Gao
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Hui Wang
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Yong‐mei Zhang
- NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Jiangsu Province Key Laboratory of AnesthesiologyXuzhou Medical UniversityXuzhouChina
| | - Tie Xu
- Emergency Medicine DepartmentThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouChina
| | - Rong Hua
- Emergency Medicine DepartmentThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouChina
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dos-Santos RC, Sweeten BLW, Stelly CE, Tasker JG. The Neuroendocrine Impact of Acute Stress on Synaptic Plasticity. Endocrinology 2023; 164:bqad149. [PMID: 37788632 PMCID: PMC11046011 DOI: 10.1210/endocr/bqad149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/05/2023]
Abstract
Stress induces changes in nervous system function on different signaling levels, from molecular signaling to synaptic transmission to neural circuits to behavior-and on different time scales, from rapid onset and transient to delayed and long-lasting. The principal effectors of stress plasticity are glucocorticoids, steroid hormones that act with a broad range of signaling competency due to the expression of multiple nuclear and membrane receptor subtypes in virtually every tissue of the organism. Glucocorticoid and mineralocorticoid receptors are localized to each of the cellular compartments of the receptor-expressing cells-the membrane, cytosol, and nucleus. In this review, we cover the neuroendocrine effects of stress, focusing mainly on the rapid actions of acute stress-induced glucocorticoids that effect changes in synaptic transmission and neuronal excitability by modulating synaptic and intrinsic neuronal properties via activation of presumed membrane glucocorticoid and mineralocorticoid receptors. We describe the synaptic plasticity that occurs in 4 stress-associated brain structures, the hypothalamus, hippocampus, amygdala, and prefrontal cortex, in response to single or short-term stress exposure. The rapid transformative impact of glucocorticoids makes this stress signal a particularly potent effector of acute neuronal plasticity.
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Affiliation(s)
- Raoni Conceição dos-Santos
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
| | - Brook L W Sweeten
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
| | - Claire E Stelly
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
| | - Jeffrey G Tasker
- Department of Cell and Molecular Biology and Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
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Govindula A, Ranadive N, Nampoothiri M, Rao CM, Arora D, Mudgal J. Emphasizing the Crosstalk Between Inflammatory and Neural Signaling in Post-traumatic Stress Disorder (PTSD). J Neuroimmune Pharmacol 2023; 18:248-266. [PMID: 37097603 PMCID: PMC10577110 DOI: 10.1007/s11481-023-10064-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 04/16/2023] [Indexed: 04/26/2023]
Abstract
Post-traumatic stress disorder (PTSD) is a chronic incapacitating condition with recurrent experience of trauma-related memories, negative mood, altered cognition, and hypervigilance. Agglomeration of preclinical and clinical evidence in recent years specified that alterations in neural networks favor certain characteristics of PTSD. Besides the disruption of hypothalamus-pituitary-axis (HPA) axis, intensified immune status with elevated pro-inflammatory cytokines and arachidonic metabolites of COX-2 such as PGE2 creates a putative scenario in worsening the neurobehavioral facet of PTSD. This review aims to link the Diagnostic and Statistical Manual of mental disorders (DSM-V) symptomology to major neural mechanisms that are supposed to underpin the transition from acute stress reactions to the development of PTSD. Also, to demonstrate how these intertwined processes can be applied to probable early intervention strategies followed by a description of the evidence supporting the proposed mechanisms. Hence in this review, several neural network mechanisms were postulated concerning the HPA axis, COX-2, PGE2, NLRP3, and sirtuins to unravel possible complex neuroinflammatory mechanisms that are obscured in PTSD condition.
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Affiliation(s)
- Anusha Govindula
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Niraja Ranadive
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - C Mallikarjuna Rao
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Devinder Arora
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Gold Coast, Queensland, 4222, Australia.
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Huang G, Iqbal J, Shen D, Xue YX, Yang M, Jia X. MicroRNA expression profiles of stress susceptibility and resilience in the prelimbic and infralimbic cortex of rats after single prolonged stress. Front Psychiatry 2023; 14:1247714. [PMID: 37692297 PMCID: PMC10488707 DOI: 10.3389/fpsyt.2023.1247714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
The experience of traumatic stress can engender lasting memories associated with the trauma, often resulting in post-traumatic stress disorder (PTSD). However, only a minority of individuals develop PTSD symptoms upon exposure. The neurobiological mechanisms underlying the pathology of PTSD are poorly understood. Utilizing a rat model of PTSD, the Single Prolonged Stress (SPS) paradigm, we were able to differentiate between resilient and susceptible individuals. Fourteen days after the SPS exposure, we conducted the behavioral analyses using Elevated Plus Maze (EPM) and Open Field (OF) tests to identify male rats as trauma resilient or susceptible. We focused on the microRNA (miRNA) profiles of the infralimbic (IL) and prelimbic (PL) cortical regions, known to be crucial in regulating the stress response. Our investigation of stressed rats exposed to the SPS procedure yielded divergent response, and differential expression microRNAs (DEmiRs) analysis indicated significant differences in the IL and PL transcriptional response. In the IL cortex, the GO analysis revealed enriched GO terms in the resilient versus control comparison, specifically related to mitogen-activated protein kinase and MAP kinase signaling pathways for their molecular functions as well as cytosol and nucleoplasm for the biological process. In the susceptible versus resilient comparison, the changes in molecular functions were only manifested in the functions of regulation of transcription involved in the G1/S transition of the mitotic cell cycle and skeletal muscle satellite cell activation. However, no enriched GO terms were found in the susceptible versus control comparison. In the PL cortex, results indicated that the DEmiRs were enriched exclusively in the cellular component level of the endoplasmic reticulum lumen in the comparison between resilient and control rats. Overall, our study utilized an animal model of PTSD to investigate the potential correlation between stress-induced behavioral dysfunction and variations in miRNA expression. The aforementioned discoveries have the potential to pave the way for novel therapeutic approaches for PTSD, which could involve the targeted regulation of transcriptome expression.
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Affiliation(s)
- Gengdi Huang
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
| | - Javed Iqbal
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
| | - Dan Shen
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Yan-xue Xue
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Mei Yang
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
- Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, China
- Clinical College of Mental Health, ShenZhen University Health Science Center, Shenzhen, China
- School of Mental Health, Jining Medical University, Jining, China
- School of Mental Health, Anhui Medical University, Hefei, China
| | - Xiaojian Jia
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
- Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, China
- Clinical College of Mental Health, ShenZhen University Health Science Center, Shenzhen, China
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9
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Torres-Rodríguez O, Rivera-Escobales Y, Castillo-Ocampo Y, Velazquez B, Colón M, Porter JT. Purinergic P2X7 receptor-mediated inflammation precedes PTSD-related behaviors in rats. Brain Behav Immun 2023; 110:107-118. [PMID: 36822379 PMCID: PMC10106407 DOI: 10.1016/j.bbi.2023.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/25/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023] Open
Abstract
Clinical evidence has linked increased peripheral pro-inflammatory cytokines with post-traumatic stress disorder (PTSD) symptoms. However, whether inflammation contributes to or is a consequence of PTSD is still unclear. Previous research shows that stress can activate purinergic P2X7 receptors (P2X7Rs) on microglia to induce inflammation and behavioral changes. In this investigation, we examined whether P2X7Rs contribute to the development of PTSD-like behaviors induced by single prolonged stress (SPS) exposure in rats. Consistent with the literature, exposing adult male and female rats to SPS produced a PTSD-like phenotype of impaired fear extinction and extinction of cue-induced center avoidance one week after exposure. Next, we examined if inflammation precedes the behavioral manifestations. Three days after SPS exposure, increased inflammatory cytokines were found in the blood and hippocampal microglia showed increased expression of the P2X7R, IL-1β, and TNF-α, suggesting increased peripheral and central inflammation before the onset of impaired fear extinction. In addition, SPS-exposed animals with impaired fear extinction recall also had more Iba1-positive microglia expressing the P2X7R in the ventral hippocampus. To determine whether P2X7Rs contribute to the PTSD-related behaviors induced by SPS exposure, we gave ICV infusions of the P2X7R antagonist, A-438079, for one week starting the day of SPS exposure. Blocking P2X7Rs prevented the SPS-induced impaired fear extinction and extinction of cue-induced center avoidance in male and female rats, suggesting that SPS activates P2X7Rs which increase inflammation to produce a PTSD-like phenotype.
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Affiliation(s)
- Orlando Torres-Rodríguez
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732
| | - Yesenia Rivera-Escobales
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732
| | - Yesenia Castillo-Ocampo
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732
| | - Bethzaly Velazquez
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732
| | - María Colón
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732
| | - James T Porter
- Dept of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico, 00732.
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10
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Suthard RL, Jellinger AL, Surets M, Shpokayte M, Pyo AY, Buzharsky MD, Senne RA, Dorst K, Leblanc H, Ramirez S. Chronic Gq activation of ventral hippocampal neurons and astrocytes differentially affects memory and behavior. Neurobiol Aging 2023; 125:9-31. [PMID: 36801699 DOI: 10.1016/j.neurobiolaging.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/20/2022] [Accepted: 01/13/2023] [Indexed: 02/01/2023]
Abstract
Network dysfunction is implicated in numerous diseases and psychiatric disorders, and the hippocampus serves as a common origin for these abnormalities. To test the hypothesis that chronic modulation of neurons and astrocytes induces impairments in cognition, we activated the hM3D(Gq) pathway in CaMKII+ neurons or GFAP+ astrocytes within the ventral hippocampus across 3, 6, and 9 months. CaMKII-hM3Dq activation impaired fear extinction at 3 months and acquisition at 9 months. Both CaMKII-hM3Dq manipulation and aging had differential effects on anxiety and social interaction. GFAP-hM3Dq activation impacted fear memory at 6 and 9 months. GFAP-hM3Dq activation impacted anxiety in the open field only at the earliest time point. CaMKII-hM3Dq activation modified the number of microglia, while GFAP-hM3Dq activation impacted microglial morphological characteristics, but neither affected these measures in astrocytes. Overall, our study elucidates how distinct cell types can modify behavior through network dysfunction, while adding a more direct role for glia in modulating behavior.
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Affiliation(s)
- Rebecca L Suthard
- Graduate Program for Neuroscience, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Alexandra L Jellinger
- Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Michelle Surets
- Undergraduate Program in Neuroscience, Boston University, Boston, MA, USA
| | - Monika Shpokayte
- Graduate Program for Neuroscience, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Angela Y Pyo
- Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | | | - Ryan A Senne
- Graduate Program for Neuroscience, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Kaitlyn Dorst
- Graduate Program for Neuroscience, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Heloise Leblanc
- Graduate Program for Neuroscience, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA
| | - Steve Ramirez
- Department of Biomedical Engineering, Boston University, Boston, MA, USA; Department of Psychological and Brain Sciences, The Center for Systems Neuroscience, Neurophotonics Center, and Photonics Center, Boston University, Boston, MA, USA.
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11
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Núñez-Rios DL, Martínez-Magaña JJ, Nagamatsu ST, Krystal JH, Martínez-González KG, Giusti-Rodríguez P, Montalvo-Ortiz JL. Cross-Species Convergence of Brain Transcriptomic and Epigenomic Findings in Posttraumatic Stress Disorder: A Systematic Review. Complex Psychiatry 2023; 9:100-118. [PMID: 37404872 PMCID: PMC10315001 DOI: 10.1159/000529536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 01/31/2023] [Indexed: 08/05/2023] Open
Abstract
Introduction Posttraumatic stress disorder (PTSD) is a complex multifactorial disorder influenced by the interaction of genetic and environmental factors. Analyses of epigenomic and transcriptomic modifications may help to dissect the biological factors underlying the gene-environment interplay in PTSD. To date, most human PTSD epigenetics studies have used peripheral tissue, and these findings have complex and poorly understood relationships to brain alterations. Studies examining brain tissue may help characterize the brain-specific transcriptomic and epigenomic profiles of PTSD. In this review, we compiled and integrated brain-specific molecular findings of PTSD from humans and animals. Methods A systematic literature search according to the PRISMA criteria was performed to identify transcriptomic and epigenomic studies of PTSD, focusing on brain tissue from human postmortem samples or animal-stress paradigms. Results Gene- and pathway-level convergence analyses revealed PTSD-dysregulated genes and biological pathways across brain regions and species. A total of 243 genes converged across species, with 17 of them significantly enriched for PTSD. Chemical synaptic transmission and signaling by G-protein-coupled receptors were consistently enriched across omics and species. Discussion Our findings point out dysregulated genes highly replicated across PTSD studies in humans and animal models and suggest a potential role for the corticotropin-releasing hormone/orexin pathway in PTSD's pathophysiology. Further, we highlight current knowledge gaps and limitations and recommend future directions to address them.
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Affiliation(s)
- Diana Leandra Núñez-Rios
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- National Center for Posttraumatic Stress Disorder, VA CT Healthcare System, West Haven, CT, USA
| | - José Jaime Martínez-Magaña
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- National Center for Posttraumatic Stress Disorder, VA CT Healthcare System, West Haven, CT, USA
| | - Sheila Tiemi Nagamatsu
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- National Center for Posttraumatic Stress Disorder, VA CT Healthcare System, West Haven, CT, USA
| | - John H. Krystal
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- National Center for Posttraumatic Stress Disorder, VA CT Healthcare System, West Haven, CT, USA
| | | | - Paola Giusti-Rodríguez
- Department of Psychiatry, University of Florida College of Medicine, Gainesville, FL, USA
| | - Janitza L. Montalvo-Ortiz
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- National Center for Posttraumatic Stress Disorder, VA CT Healthcare System, West Haven, CT, USA
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12
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Sarkar I, Snippe-Strauss M, Tenenhaus Zamir A, Benhos A, Richter-Levin G. Individual behavioral profiling as a translational approach to assess treatment efficacy in an animal model of post-traumatic stress disorder. Front Neurosci 2022; 16:1071482. [PMID: 36620437 PMCID: PMC9815535 DOI: 10.3389/fnins.2022.1071482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
A major challenge in treating post-traumatic stress disorder (PTSD) continues to be the large variability in responsiveness to pharmacotherapy. Only 20-30% of patients experience total remission to a specific treatment, while others demonstrate either partial remission or no response. However, this heterogeneity in response to pharmacotherapy has not been adequately addressed in animal models, since these analyze the averaged group effects, ignoring the individual variability to treatment response, which seriously compromises the translation power of such models. Here we examined the possibility of employing an "individual behavioral profiling" approach, originally developed to differentiate between "affected" and "exposed-unaffected" individuals in an animal model of PTSD, to also enable dissociating "responders" or "non-responders" after SSRI (fluoxetine) treatment. Importantly, this approach does not rely on a group averaged response to a single behavioral parameter, but considers a cluster of behavioral parameters, to individually characterize an animal as either "responder" or "non-responder" to the treatment. The main variable to assess drug efficacy thus being the proportion of "responders" following treatment. Alteration in excitatory/inhibitory (E/I) balance has been proposed as being associated with stress-related psychopathology. Toward a functional proof of concept for our behaviorally-based characterization approach, we examined the expression patterns of α1 and α2 subunits of GABAA receptor, and GluN1 and GluN2A subunits of the NMDAR receptor in the ventral hippocampus, as well as electrophysiologically local circuit activity in the dorsal dentate gyrus (DG). We demonstrate that with both parameters, treatment "responders" differed from treatment "non-responders," confirming the functional validity of the behavior-based categorization. The results suggest that the ability to respond to fluoxetine treatment may be linked to the ability to modulate excitation-inhibition balance in the hippocampus. We propose that employing the "individual behavioral profiling" approach, and the resultant novel variable of the proportion of "recovered" individuals following treatment, offers an effective translational tool to assess pharmacotherapy treatment efficacy in animal models of stress and trauma-related psychopathology.
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Affiliation(s)
- Ishita Sarkar
- Sagol Department of Neurobiology, University of Haifa, Haifa, Israel
| | | | | | - Amir Benhos
- School of Psychological Sciences, University of Haifa, Haifa, Israel
| | - Gal Richter-Levin
- Sagol Department of Neurobiology, University of Haifa, Haifa, Israel,School of Psychological Sciences, University of Haifa, Haifa, Israel,The Integrated Brain and Behavior Research Center, University of Haifa, Haifa, Israel,*Correspondence: Gal Richter-Levin,
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13
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Jaffe AE, Tao R, Page SC, Maynard KR, Pattie EA, Nguyen CV, Deep-Soboslay A, Bharadwaj R, Young KA, Friedman MJ, Williamson DE, Shin JH, Hyde TM, Martinowich K, Kleinman JE. Decoding Shared Versus Divergent Transcriptomic Signatures Across Cortico-Amygdala Circuitry in PTSD and Depressive Disorders. Am J Psychiatry 2022; 179:673-686. [PMID: 35791611 PMCID: PMC10697016 DOI: 10.1176/appi.ajp.21020162] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Posttraumatic stress disorder (PTSD) is a debilitating neuropsychiatric disease that is highly comorbid with major depressive disorder (MDD) and bipolar disorder. The overlap in symptoms is hypothesized to stem from partially shared genetics and underlying neurobiological mechanisms. To delineate conservation between transcriptional patterns across PTSD and MDD, the authors examined gene expression in the human cortex and amygdala in these disorders. METHODS RNA sequencing was performed in the postmortem brain of two prefrontal cortex regions and two amygdala regions from donors diagnosed with PTSD (N=107) or MDD (N=109) as well as from neurotypical donors (N=109). RESULTS The authors identified a limited number of differentially expressed genes (DEGs) specific to PTSD, with nearly all mapping to cortical versus amygdala regions. PTSD-specific DEGs were enriched in gene sets associated with downregulated immune-related pathways and microglia as well as with subpopulations of GABAergic inhibitory neurons. While a greater number of DEGs associated with MDD were identified, most overlapped with PTSD, and only a few were MDD specific. The authors used weighted gene coexpression network analysis as an orthogonal approach to confirm the observed cellular and molecular associations. CONCLUSIONS These findings provide supporting evidence for involvement of decreased immune signaling and neuroinflammation in MDD and PTSD pathophysiology, and extend evidence that GABAergic neurons have functional significance in PTSD.
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Affiliation(s)
- Andrew E. Jaffe
- Lieber Institute for Brain Development, Baltimore, MD
- Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Genetic Medicine, McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD
- Center for Computational Biology, Johns Hopkins University, Baltimore, MD
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Ran Tao
- Lieber Institute for Brain Development, Baltimore, MD
| | | | | | | | | | | | | | - Keith A. Young
- Department of Psychiatry and Behavioral Sciences, Texas A&M College of Medicine, Bryan TX
- Department of Veterans Affairs, VISN 17 Center of Excellence for Research on Returning War Veterans, Waco, TX
- Central Texas Veterans Health Care System, Temple, TX, 76504, USA
- Baylor Scott & White Psychiatry, Temple, TX
| | - Matthew J. Friedman
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Dartmouth Hanover, NH
- National Center for PTSD, U.S. Department of Veterans Affairs
| | - Douglas E. Williamson
- Duke Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, 300 North Duke St, Durham, North Carolina
- Durham VA Healthcare System, 508 Fulton St, Durham, North Carolina
| | | | - Joo Heon Shin
- Lieber Institute for Brain Development, Baltimore, MD
| | - Thomas M. Hyde
- Lieber Institute for Brain Development, Baltimore, MD
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD
| | - Keri Martinowich
- Lieber Institute for Brain Development, Baltimore, MD
- Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD
| | - Joel E. Kleinman
- Lieber Institute for Brain Development, Baltimore, MD
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD
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14
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Polopalli S, Yetukuri AR, Danduga RCSR, Kola PK. A prognostic study on the effect of post-traumatic stress disorder on cerebral ischaemia reperfusion-induced stroke. World J Biol Psychiatry 2022; 23:136-150. [PMID: 34165039 DOI: 10.1080/15622975.2021.1935318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Previous studies have been established that persons who experienced a stroke are soon likely to develop several anxiety disorders. In which one of the major anxiety disorders is Post-traumatic Stress Disorder (PTSD). Yet, the likelihood of PTSD in conjunction with cerebral stroke has not been well described. Hence, we evaluated the impact of PTSD on cerebral stroke in rodents subjected to single prolonged stress (SPS) and bilateral common carotid artery occlusion (BCCAo), respectively. METHODS The relation between PTSD and cerebral stroke is evaluated by performing behavioural, biochemical, histopathological, and brain lesion area measurement studies. RESULTS Interestingly, SPS + BCCAo induction increased behavioural abnormalities like cognitive impairment and anxiety-like behaviour compared to SPS and BCCAo groups alone. Motor impairment was also observed in SPS + BCCAo rats compared to SPS rats, whereas no change with BCCAo rats. Furthermore, increased brain tissue MDA, acetylcholinesterase, and decreased SOD, catalase, and GSH were observed in SPS + BCCAo subjected rats compared to SPS and BCCAo rats alone. Additionally, SPS + BCCAo induction considerably increased the plasma corticosterone levels and caused severe neurotransmitter alterations. The SPS + BCCAo exposure significantly increased the brain lesion area in comparison with BCCAo rats. Moreover, severe histopathological alterations were observed in the hippocampus (CA1) of SPS + BCCAo rats compared to SPS and BCCAo rats alone. CONCLUSIONS In conclusion, our study results suggested that SPS-induced PTSD may aggravate the BCCAo induced cerebral ischaemia-reperfusion injury.
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Affiliation(s)
- Subramanyam Polopalli
- Department of Pharmacology, Vishnu Institute of Pharmaceutical Education and Research, Narsapur, Medak, India.,Department of Pharmacology, University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, India
| | - Amulya Rani Yetukuri
- Department of Pharmacology, University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, India
| | | | - Phani Kumar Kola
- Department of Pharmacology, University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, India
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15
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Zhang L, Meng S, Chen W, Chen Y, Huang E, Zhang G, Liang Y, Ding Z, Xue Y, Chen Y, Shi J, Shi Y. High-Frequency Deep Brain Stimulation of the Substantia Nigra Pars Reticulata Facilitates Extinction and Prevents Reinstatement of Methamphetamine-Induced Conditioned Place Preference. Front Pharmacol 2021; 12:705813. [PMID: 34276387 PMCID: PMC8277946 DOI: 10.3389/fphar.2021.705813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/10/2021] [Indexed: 12/21/2022] Open
Abstract
Persistent and stable drug memories lead to a high rate of relapse among addicts. A number of studies have found that intervention in addiction-related memories can effectively prevent relapse. Deep brain stimulation (DBS) exhibits distinct therapeutic effects and advantages in the treatment of neurological and psychiatric disorders. In addition, recent studies have also found that the substantia nigra pars reticulata (SNr) could serve as a promising target in the treatment of addiction. Therefore, the present study aimed to investigate the effect of DBS of the SNr on the reinstatement of drug-seeking behaviors. Electrodes were bilaterally implanted into the SNr of rats before training of methamphetamine-induced conditioned place preference (CPP). High-frequency (HF) or low-frequency (LF) DBS was then applied to the SNr during the drug-free extinction sessions. We found that HF DBS, during the extinction sessions, facilitated extinction of methamphetamine-induced CPP and prevented drug-primed reinstatement, while LF DBS impaired the extinction. Both HF and LF DBS did not affect locomotor activity or induce anxiety-like behaviors of rats. Finally, HF DBS had no effect on the formation of methamphetamine-induced CPP. In conclusion, our results suggest that HF DBS of the SNr could promote extinction and prevent reinstatement of methamphetamine-induced CPP, and the SNr may serve as a potential therapeutic target in the treatment of drug addiction.
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Affiliation(s)
- Libo Zhang
- Shenzhen Public Service Platform for Clinical Application of Medical Imaging, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China.,National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Shiqiu Meng
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Wenjun Chen
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yun Chen
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Enze Huang
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Guipeng Zhang
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yisen Liang
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Zengbo Ding
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yanxue Xue
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yun Chen
- Shenzhen Public Service Platform for Clinical Application of Medical Imaging, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jie Shi
- Shenzhen Public Service Platform for Clinical Application of Medical Imaging, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China.,National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yu Shi
- Shenzhen Public Service Platform for Clinical Application of Medical Imaging, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, China
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16
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Cao KX, Ma ML, Wang CZ, Iqbal J, Si JJ, Xue YX, Yang JL. TMS-EEG: An emerging tool to study the neurophysiologic biomarkers of psychiatric disorders. Neuropharmacology 2021; 197:108574. [PMID: 33894219 DOI: 10.1016/j.neuropharm.2021.108574] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/08/2021] [Accepted: 04/15/2021] [Indexed: 01/02/2023]
Abstract
The etiology of psychiatric disorders remains largely unknown. The exploration of the neurobiological mechanisms of mental illness helps improve diagnostic efficacy and develop new therapies. This review focuses on the application of concurrent transcranial magnetic stimulation and electroencephalography (TMS-EEG) in various mental diseases, including major depressive disorder, bipolar disorder, schizophrenia, autism spectrum disorder, attention-deficit/hyperactivity disorder, substance use disorder, and insomnia. First, we summarize the commonly used protocols and output measures of TMS-EEG; then, we review the literature exploring the alterations in neural patterns, particularly cortical excitability, plasticity, and connectivity alterations, and studies that predict treatment responses and clinical states in mental disorders using TMS-EEG. Finally, we discuss the potential mechanisms underlying TMS-EEG in establishing biomarkers for psychiatric disorders and future research directions.
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Affiliation(s)
- Ke-Xin Cao
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Mao-Liang Ma
- Department of Clinical Psychology, Tianjin Medical University General Hospital Airport Site, Tianjin, China
| | - Cheng-Zhan Wang
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Javed Iqbal
- School of Psychology, Shaanxi Normal University and Key Laboratory for Behavior and Cognitive Neuroscience of Shaanxi Province, Xi'an, China
| | - Ji-Jian Si
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-Xue Xue
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China; Key Laboratory for Neuroscience of Ministry of Education and Neuroscience, National Health and Family Planning Commission, Peking University, Beijing, China.
| | - Jian-Li Yang
- Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China.
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17
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BDNF Protein and BDNF mRNA Expression of the Medial Prefrontal Cortex, Amygdala, and Hippocampus during Situational Reminder in the PTSD Animal Model. Behav Neurol 2021; 2021:6657716. [PMID: 33763156 PMCID: PMC7964114 DOI: 10.1155/2021/6657716] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/09/2021] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
Whether BDNF protein and BDNF mRNA expression of the medial prefrontal cortex (mPFC; cingulated cortex area 1 (Cg1), prelimbic cortex (PrL), and infralimbic cortex (IL)), amygdala, and hippocampus (CA1, CA2, CA3, and dentate gyrus (DG)) was involved in fear of posttraumatic stress disorder (PTSD) during the situational reminder of traumatic memory remains uncertain. Footshock rats experienced an inescapable footshock (3 mA, 10 s), and later we have measured fear behavior for 2 min in the footshock environment on the situational reminder phase. In the final retrieval of situational reminder, BDNF protein and mRNA levels were measured. The results showed that higher BDNF expression occurred in the Cg1, PrL, and amygdala. Lower BDNF expression occurred in the IL, CA1, CA2, CA3, and DG. BDNF mRNA levels were higher in the mPFC and amygdala but lower in the hippocampus. The neural connection analysis showed that BDNF protein and BDNF mRNA exhibited weak connections among the mPFC, amygdala, and hippocampus during situational reminders. The present data did not support the previous viewpoint in neuroimaging research that the mPFC and hippocampus revealed hypoactivity and the amygdala exhibited hyperactivity for PTSD symptoms. These findings should be discussed with the previous evidence and provide clinical implications for PTSD.
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18
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Ligon CO, Hannig G, Greenwood-Van Meerveld B. Peripheral Guanylate Cyclase-C modulation of corticolimbic activation and corticotropin-releasing factor signaling in a rat model of stress-induced colonic hypersensitivity. Neurogastroenterol Motil 2021; 33:e14076. [PMID: 33373484 DOI: 10.1111/nmo.14076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/05/2020] [Accepted: 12/03/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Psychological stress is a risk factor for irritable bowel syndrome, a functional gastrointestinal pain disorder featuring abnormal brain-gut connectivity. The guanylate cyclase-C (GC-C) agonist linaclotide has been shown to relieve abdominal pain in IBS-C and exhibits antinociceptive effects in rodent models of post-inflammatory visceral hypersensitivity. However, the role GC-C signaling plays in psychological stress-induced visceral hypersensitivity is unknown. Here, we test the hypothesis that GC-C agonism reverses stress-induced colonic hypersensitivity via inhibition of nociceptive afferent signaling resulting in normalization of stress-altered corticotropin-releasing factor (CRF) expression in brain regions involved in pain perception and modulation. METHODS Adult female rats were exposed to water avoidance stress or sham stress for 10 days, and the effects of linaclotide on stress-induced changes in colonic sensitivity, corticolimbic phospho-extracellular signal-regulated kinase (pERK), and CRF expression were measured using a combination of behavioral assessments, immunohistochemistry, and qRT-PCR. KEY RESULTS Stressed rats exhibited colonic hypersensitivity and elevated corticolimbic pERK on day 11, which was inhibited by linaclotide. qRT-PCR analysis revealed dysregulated CRF expression in the medial prefrontal cortex, paraventricular nucleus of the hypothalamus, and central nucleus of the amygdala on day 28. Dysregulated CRF expression was not affected by linaclotide treatment. CONCLUSIONS AND INFERENCES Our results demonstrate that exposure to repeated stress induces chronic colonic hypersensitivity in conjunction with altered corticolimbic activation and CRF expression. GC-C agonism attenuated stress-induced colonic hypersensitivity and ERK phosphorylation, but had no effect on CRF expression, suggesting the analgesic effects of linaclotide occur independent of stress-driven CRF gene expression in corticolimbic circuitry.
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Affiliation(s)
- Casey O Ligon
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | - Beverley Greenwood-Van Meerveld
- Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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19
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A Neural Circuit from Thalamic Paraventricular Nucleus to Central Amygdala for the Facilitation of Neuropathic Pain. J Neurosci 2020; 40:7837-7854. [PMID: 32958568 DOI: 10.1523/jneurosci.2487-19.2020] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 09/04/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022] Open
Abstract
As one of the thalamic midline nuclei, the thalamic paraventricular nucleus (PVT) is considered to be an important signal integration site for many descending and ascending pathways that modulate a variety of behaviors, including feeding, emotions, and drug-seeking. A recent study has demonstrated that the PVT is implicated in the acute visceral pain response, but it is unclear whether the PVT plays a critical role in the central processing of chronic pain. Here, we report that the neurons in the posterior portion of the PVT (pPVT) and their downstream pathway are involved in descending nociceptive facilitation regarding the development of neuropathic pain conditions in male rats. Lesions or inhibition of pPVT neurons alleviated mechanical allodynia induced by spared nerve injury (SNI). The excitability of pPVT-central amygdala (CeA) projection neurons was significantly increased in SNI rats. Importantly, selective optogenetic activation of the pPVT-CeA pathway induced obvious mechanical hypersensitivity in naive rats. In addition, we used rabies virus (RV)-based and cell-type-specific retrograde transsynaptic tracing techniques to define a novel neuronal circuit in which glutamatergic neurons in the vlPAG were the target of the pPVT-CeA descending facilitation pathway. Our data suggest that this pPVTGlu+-CeA-vlPAGGlu+ circuit mediates central mechanisms of descending pain facilitation underlying persistent pain conditions.SIGNIFICANCE STATEMENT Studies have shown that the interactions between the posterior portion of the thalamic paraventricular nucleus (pPVT) and central amygdala (CeA) play a critical role in pain-related emotional regulation. However, most reports have associated this circuit with fear and anxiety behaviors. Here, an integrative approach of behavioral tests, electrophysiology, and immunohistochemistry was used to advance the novel concept that the pPVT-CeA pathway activation facilitates neuropathic pain processing. Using rabies virus (RV)-based and cell-type-specific retrograde transsynaptic tracing techniques, we found that glutamatergic neurons in the vlPAG were the target of the pPVT-CeA pathway. Thus, this study indicates the involvement of a pPVTGlu+-CeA-vlPAGGlu+ pathway in a descending facilitatory mechanism underlying neuropathic pain.
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20
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Zhang HH, Meng SQ, Guo XY, Zhang JL, Zhang W, Chen YY, Lu L, Yang JL, Xue YX. Traumatic Stress Produces Delayed Alterations of Synaptic Plasticity in Basolateral Amygdala. Front Psychol 2019; 10:2394. [PMID: 31708835 PMCID: PMC6824323 DOI: 10.3389/fpsyg.2019.02394] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 10/07/2019] [Indexed: 12/19/2022] Open
Abstract
Acute traumatic event exposure is a direct cause of post-traumatic stress disorder (PTSD). Amygdala is suggested to be associated with the development of PTSD. In our previous findings, different activation patterns of GABAergic neurons and glutamatergic neurons in early or late stages after stress were found. However, the neural plastic mechanism underlying the role of basolateral amygdala (BLA) in post-traumatic stress disorder remains unclear. Therefore, this study mainly aimed at investigating time-dependent morphologic and electrophysiological changes in BLA during the development of PTSD. We used single prolonged stress (SPS) procedure to establish PTSD model of rats. The rats showed no alterations in anxiety behavior as well as in dendritic spine density or synaptic transmission in BLA 1 day after SPS. However, 10 days after SPS, rats showed enhancement of anxiety behavior, and spine density and frequency of miniature excitatory and inhibitory postsynaptic currents in BLA. Our results suggested that after traumatic stress, BLA displayed delayed increase in both spinogenesis and synaptic transmission, which seemed to facilitate the development of PTSD.
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Affiliation(s)
- Huan-Huan Zhang
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Shi-Qiu Meng
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Xin-Yi Guo
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-Liang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, Peking University School of Pharmaceutical Sciences, Beijing, China.,Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University College of Pharmacy and Purdue Institute for Integrative Neuroscience, West Lafayette, IN, United States
| | - Wen Zhang
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Ya-Yun Chen
- National Institute on Drug Dependence, Peking University, Beijing, China
| | - Lin Lu
- National Institute on Drug Dependence, Peking University, Beijing, China.,Peking University Sixth Hospital/Peking University Institute of Mental Health, Peking University, Beijing, China
| | - Jian-Li Yang
- Department of Psychiatry, Tianjin Medical University, Tianjin, China.,Department of Clinical Psychology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-Xue Xue
- National Institute on Drug Dependence, Peking University, Beijing, China
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Chen YY, Zhang LB, Li Y, Meng SQ, Gong YM, Lu L, Xue YX, Shi J. Post-retrieval Extinction Prevents Reconsolidation of Methamphetamine Memory Traces and Subsequent Reinstatement of Methamphetamine Seeking. Front Mol Neurosci 2019; 12:157. [PMID: 31312119 PMCID: PMC6614190 DOI: 10.3389/fnmol.2019.00157] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/05/2019] [Indexed: 12/31/2022] Open
Abstract
Methamphetamine abuse has become a serious public health problem. However, effective treatment for methamphetamine addiction remains elusive, especially considering its high rate of relapse after treatment. A conditioned stimulus (CS) memory retrieval–extinction procedure has been demonstrated to decrease reinstatement of cocaine, heroin, and alcohol seeking in rats, and to reduce cue-induced cravings in heroin and nicotine addicts. The goal of the present study is to explore the effect of the CS memory retrieval–extinction procedure on methamphetamine seeking in rats and the underlying mechanisms. We found that daily retrieval of methamphetamine-associated memories 1 h before extinction sessions decreased subsequent drug priming-induced reinstatement, spontaneous recovery, and renewal of methamphetamine seeking. We also found that retrieval of methamphetamine-associated memories induced neuronal activation in the basolateral amygdala (BLA), while presenting extinction within the time window of reconsolidation abolished the neuronal activation in BLA. These results indicate that the CS memory retrieval–extinction procedure could prevent reconsolidation of methamphetamine memory traces in BLA and subsequent methamphetamine craving and relapse.
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Affiliation(s)
- Ya-Yun Chen
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
| | - Li-Bo Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
| | - Yue Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
| | - Shi-Qiu Meng
- Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
| | - Yi-Miao Gong
- Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Lin Lu
- Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China.,Peking University Sixth Hospital/Peking University Institute of Mental Health, Peking University, Beijing, China.,National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yan-Xue Xue
- Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
| | - Jie Shi
- Beijing Key Laboratory of Drug Dependence, National Institute on Drug Dependence, Peking University, Beijing, China
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22
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Li M, Li K, Zhang H, Jiang Y. Study on the mechanism of TMRK electroacupuncture in repairing synaptic plasticity in amygdala and hippocampus to relieve fear memory in PTSD rats. Technol Health Care 2019; 27:425-443. [PMID: 31045558 PMCID: PMC6598005 DOI: 10.3233/thc-199038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Post-traumatic stress disorder (PTSD) is a chronic mental disorder caused by mental or psychological trauma after sudden events of a catastrophic or threatening nature. Synaptic plasticity is the core mechanism of PTSD and the main point of treatment of this disease. METHODS Male Sprague Dawley rats were randomly divided into blank control (Ctrl), SPS (single-prolonged stress) model, SPS&S model (SPS and foot electric shock), SPS+EA (SPS plus electroacupuncture), and SPS&S+EA groups. Tranquilize Mind and Regulate Kidney (TMRK) electroacupuncture method was performed in each rat in the SPS+EA and SPS&S+EA groups, the treatment lasted for 20 minutes per day, simultaneously for 3 consecutive weeks. Behavioral evaluations, molecular tests, electron microscopy, electrophysiological testing were conducted following the treatment. RESULTS First, electro-acupuncture can significantly improve the PTSD-like symptoms. Second, electro-acupuncture can up-regulate the long-term potentiation (LTP) in hippocampus, repair the synaptic morphology and improve BDNF levels in amygdala and hippocampus. Third, electroacupuncture can significantly up-regulate SYN, GAP43, and PSD95 protein levels and mRNA expression in amygdala and hippocampus. CONCLUSIONS The effect of TMRK electro-acupuncture method on the regression of fear memory of PTSD rats may be through its repair of synaptic plasticity in amygdala and hippocampus.
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Affiliation(s)
- Mi Li
- Acupuncture and Tuina College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
| | - Kai Li
- Acupuncture and Tuina College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
- Chinese Medicine College, Hainan Medical University, Haikou, Hainan 571199, China
| | - Hong Zhang
- Acupuncture and Tuina College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, China
| | - Yong Jiang
- Basic Medical College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan China
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