1
|
Kong CH, Min HS, Jeon M, Kang WC, Park K, Kim MS, Jung SY, Bae HJ, Park SJ, Shin HK, Seo CS, Ryu JH. Cheonwangbosimdan mitigates post-traumatic stress disorder-like behaviors through GluN2B-containing NMDA receptor antagonism in mice. J Ethnopharmacol 2024; 330:118270. [PMID: 38685368 DOI: 10.1016/j.jep.2024.118270] [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] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/23/2024] [Accepted: 04/27/2024] [Indexed: 05/02/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cheonwangbosimdan (CWBSD), a herbal medicine traditionally used for anxiety, insomnia, depression, and heart palpitations, has been reported to have anti-anxiety, antidepressant, cognitive improvement, and neuroprotective effects. AIM OF THE STUDY The purpose of this study was to determine if CWBSD could affect post-traumatic stress disorder (PTSD)-like behaviors because it has prioritized clinical use over mechanism study. MATERIALS AND METHODS A single prolonged stress (SPS) mouse model, a well-established animal model of PTSD, was used to investigate whether standardized CWBSD could mitigate PTSD-like behaviors through robust behavioral tests, including the elevated plus-maze test and marble burying test for measuring anxiety-like behaviors, the splash test, forced swimming test, and tail suspension test for evaluating depression-like behaviors, and the Y-maze test and novel object recognition test for assessing cognitive function. Additionally, a fear extinction test was employed to determine whether CWBSD might reverse fear memory extinction deficits. Amygdala tissue was isolated from SPS-treated mouse brain and subjected to Western blotting or quantitative PCR to explore mechanisms by which CWBSD could mitigate PTSD-like behaviors. RESULTS CWBSD ameliorated emotional impairments and cognitive dysfunction in an SPS-induced PTSD-like mouse model. It also mitigated deficits in abnormal fear memory extinction. Protein expression levels of N-methyl-D-aspartate (NMDA) receptor subunit 2B (GluN2B) and phosphorylation levels of Ca2+/calmodulin-dependent protein kinase II in the amygdala were increased in SPS model mice and normalized by CWBSD. Additionally, co-administration of CWBSD and GluN2B-containing NMDA receptor antagonist, ifenprodil, at each sub-effective dose promoted fear memory extinction. CONCLUSIONS CWBSD can alleviate SPS-induced PTSD-like behaviors by normalizing GluN2B-containing NMDA receptor activity in the amygdala. Therefore, CWBSD could be a promising candidate for PTSD treatment with fewer adverse effects and better efficacy than existing therapies.
Collapse
MESH Headings
- Animals
- Receptors, N-Methyl-D-Aspartate/metabolism
- Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors
- Stress Disorders, Post-Traumatic/drug therapy
- Stress Disorders, Post-Traumatic/psychology
- Stress Disorders, Post-Traumatic/metabolism
- Male
- Mice
- Behavior, Animal/drug effects
- Disease Models, Animal
- Mice, Inbred C57BL
- Fear/drug effects
- Amygdala/drug effects
- Amygdala/metabolism
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Anxiety/drug therapy
- Anxiety/psychology
Collapse
Affiliation(s)
- Chang Hyeon Kong
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Hoo Sik Min
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Mijin Jeon
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Woo Chang Kang
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Keontae Park
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Min Seo Kim
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Seo Yun Jung
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Ho Jung Bae
- Agriculture and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Se Jin Park
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Hyeon-Kyoo Shin
- KM Science Research Division, Korea Institute of Oriental Medicine, Daejeon, 305-811, Republic of Korea
| | - Chang-Seob Seo
- KM Science Research Division, Korea Institute of Oriental Medicine, Daejeon, 305-811, Republic of Korea.
| | - Jong Hoon Ryu
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, 02447, Republic of Korea; Department of Oriental Pharmaceutical Science, Kyung Hee University, Seoul, 02447, Republic of Korea.
| |
Collapse
|
2
|
Xu H, Zhang T, Li L, Qu Y, Li L, Yan Y, Wu L, Yan C. Paeoniflorin exerts anti-PTSD effects in adult rats by modulating hippocampus and amygdala histone acetylation modifications in response to early life stress. Chem Biol Interact 2024:111035. [PMID: 38703807 DOI: 10.1016/j.cbi.2024.111035] [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: 10/22/2023] [Revised: 04/12/2024] [Accepted: 05/02/2024] [Indexed: 05/06/2024]
Abstract
Early life stress (ELS) can cause long-term changes by epigenetic factors, especially histone acetylation modification, playing a crucial role, affect normal cognition, mood, and behavior, and increase susceptibility to post-traumatic stress disorder (PTSD) in adulthood. It has been found that paeoniflorin (PF) can cross the blood-brain barrier to exert anti-PTSD effects on adult PTSD rats. However, whether PF can alleviate the harmful effects caused by ELS in adulthood has not yet been reported. Therefore, to explore the relationship between ELS and PTSD susceptibility in adulthood and its mechanism, in this study, SPS was used as a stressor of ELS, and the mathematical tool Z-normalization was employed as an evaluation criterion of behavioral resilience susceptibility. To investigate the regulatory mechanism of PF on histone acetylation in the hippocampus and amygdala of ELS rats in adulthood, using changes in HATs/HDACs as the entry point, meanwhile, the epigenetic marks (H3K9 and H4K12) in the key brain regions of ELS (hippocampus and amygdala) were evaluated, and the effects of PF on behavioral representation and PTSD susceptibility were observed. This study found that ELS lead to a series of PTSD-like behaviors in adulthood and caused imbalance of HATs/HDACs ratio in the hippocampus and amygdala, which confirms that ELS is an important risk factor for the development of PTSD in adulthood. In addition, paeoniflorin may improve ELS-induced PTSD-like behaviors and reduce the susceptibility of ELS rats to develop PTSD in adulthood by modulating the HATs/HDACs ratio in the hippocampus and amygdala.
Collapse
Affiliation(s)
- Hanfang Xu
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China.
| | - Tiange Zhang
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China.
| | - Ling Li
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China
| | - Yue Qu
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China
| | - Lanxin Li
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China
| | - Yuqi Yan
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China
| | - Lili Wu
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China.
| | - Can Yan
- Integrative Medicine Research Center, School of Basic Medical Science, Guangzhou University of Chinese Medicine, Outer Ring East Road No. 232, Higher Education Mega Center, Guangzhou 510006, China.
| |
Collapse
|
3
|
Al-Zoubi RM, Abu-Hijleh H, Zarour A, Zakaria ZZ, Yassin A, Al-Ansari AA, Al-Asmakh M, Bawadi H. Zebrafish Model in Illuminating the Complexities of Post-Traumatic Stress Disorders: A Unique Research Tool. Int J Mol Sci 2024; 25:4895. [PMID: 38732113 PMCID: PMC11084870 DOI: 10.3390/ijms25094895] [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: 01/02/2024] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 05/13/2024] Open
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating psychological condition that may develop in certain individuals following exposure to life-threatening or traumatic events. Distressing symptoms, including flashbacks, are characterized by disrupted stress responses, fear, anxiety, avoidance tendencies, and disturbances in sleep patterns. The enduring effects of PTSD can profoundly impact personal and familial relationships, as well as social, medical, and financial stability. The prevalence of PTSD varies among different populations and is influenced by the nature of the traumatic event. Recently, zebrafish have emerged as a valuable model organism in studying various conditions and disorders. Zebrafish display robust behavioral patterns that can be effectively quantified using advanced video-tracking tools. Due to their relatively simple nervous system compared to humans, zebrafish are particularly well suited for behavioral investigations. These unique characteristics make zebrafish an appealing model for exploring the underlying molecular and genetic mechanisms that govern behavior, thus offering a powerful comparative platform for gaining deeper insights into PTSD. This review article aims to provide updates on the pathophysiology of PTSD and the genetic responses associated with psychological stress. Additionally, it highlights the significance of zebrafish behavior as a valuable tool for comprehending PTSD better. By leveraging zebrafish as a model organism, researchers can potentially uncover novel therapeutic interventions for the treatment of PTSD and contribute to a more comprehensive understanding of this complex condition.
Collapse
Affiliation(s)
- Raed M. Al-Zoubi
- Department of Chemistry, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan;
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
- Department of Biomedical Sciences, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar
| | - Haya Abu-Hijleh
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
| | - Ahmad Zarour
- Department of Surgery, Acute Care Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar;
| | - Zain Z. Zakaria
- Vice President for Medical and Health Sciences Office, QU-Health, Qatar University, Doha 2713, Qatar;
| | - Aksam Yassin
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
- Center of Medicine and Health Sciences, Dresden International University, 01069 Dresden, Germany
| | - Abdulla A. Al-Ansari
- Surgical Research Section, Department of Surgery, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar; (A.Y.); (A.A.A.-A.)
| | - Maha Al-Asmakh
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar
| | - Hiba Bawadi
- Department of Human Nutrition, QU-Health, College of Health Sciences, Qatar University, Doha 2713, Qatar; (H.A.-H.); (M.A.-A.)
| |
Collapse
|
4
|
Đorović Đ, Lazarevic V, Aranđelović J, Stevanović V, Paslawski W, Zhang X, Velimirović M, Petronijević N, Puškaš L, Savić MM, Svenningsson P. Maternal deprivation causes CaMKII downregulation and modulates glutamate, norepinephrine and serotonin in limbic brain areas in a rat model of single prolonged stress. J Affect Disord 2024; 349:286-296. [PMID: 38199412 DOI: 10.1016/j.jad.2024.01.087] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
BACKGROUND Early life stress is a major risk factor for later development of psychiatric disorders, including post-traumatic stress disorder (PTSD). An intricate relationship exists between various neurotransmitters (such as glutamate, norepinephrine or serotonin), calcium/calmodulin-dependent protein kinase II (CaMKII), as an important regulator of glutamatergic synaptic function, and PTSD. Here, we developed a double-hit model to investigate the interaction of maternal deprivation (MD) as an early life stress model and single prolonged stress (SPS) as a PTSD model at the behavioral and molecular levels. METHODS Male Wistar rats exposed to these stress paradigms were subjected to a comprehensive behavioral analysis. In hippocampal synaptosomes we investigated neurotransmitter release and glutamate concentration. The expression of CaMKII and the content of monoamines were determined in selected brain regions. Brain-derived neurotrophic factor (BDNF) mRNA was quantified by radioactive in situ hybridization. RESULTS We report a distinct behavioral phenotype in the double-hit group. Double-hit and SPS groups had decreased hippocampal presynaptic glutamatergic function. In hippocampus, double-hit stress caused a decrease in autophosphorylation of CaMKII. In prefrontal cortex, both SPS and double-hit stress had a similar effect on CaMKII autophosphorylation. Double-hit stress, rather than SPS, affected the norepinephrine and serotonin levels in prefrontal cortex, and suppressed BDNF gene expression in prefrontal cortex and hippocampus. LIMITATIONS The study was conducted in male rats only. The affected brain regions cannot be restricted to hippocampus, prefrontal cortex and amygdala. CONCLUSION Double-hit stress caused more pronounced and distinct behavioral, molecular and functional changes, compared to MD or SPS alone.
Collapse
Affiliation(s)
- Đorđe Đorović
- Neuro Svenningsson, Department of Clinical Neuroscience, Karolinska Institutet, 171 76 Stockholm, Sweden; Institute of Anatomy "Niko Miljanic", School of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Vesna Lazarevic
- Neuro Svenningsson, Department of Clinical Neuroscience, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Jovana Aranđelović
- Department of Pharmacology, Faculty of Pharmacy, University of Belgrade, 450 Vojvode Stepe St, 11000 Belgrade, Serbia
| | - Vladimir Stevanović
- Department of Pharmacology, Faculty of Pharmacy, University of Belgrade, 450 Vojvode Stepe St, 11000 Belgrade, Serbia
| | - Wojciech Paslawski
- Neuro Svenningsson, Department of Clinical Neuroscience, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Xiaoqun Zhang
- Neuro Svenningsson, Department of Clinical Neuroscience, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Milica Velimirović
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nataša Petronijević
- Institute of Clinical and Medical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Laslo Puškaš
- Institute of Anatomy "Niko Miljanic", School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Miroslav M Savić
- Department of Pharmacology, Faculty of Pharmacy, University of Belgrade, 450 Vojvode Stepe St, 11000 Belgrade, Serbia
| | - Per Svenningsson
- Neuro Svenningsson, Department of Clinical Neuroscience, Karolinska Institutet, 171 76 Stockholm, Sweden
| |
Collapse
|
5
|
Shen D, Chang L, Su F, Huang S, Xu H, Si Y, Wang F, Xue Y. The gut microbiome modulates the susceptibility to traumatic stress in a sex-dependent manner. J Neurosci Res 2024; 102:e25315. [PMID: 38439584 DOI: 10.1002/jnr.25315] [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: 08/18/2023] [Revised: 01/30/2024] [Accepted: 02/19/2024] [Indexed: 03/06/2024]
Abstract
Post-traumatic stress disorder (PTSD), a psychological condition triggered by exposure to extreme or chronic stressful events, exhibits a sex bias in incidence and clinical manifestations. Emerging research implicates the gut microbiome in the pathogenesis of PTSD and its roles in stress susceptibility. However, it is unclear whether differential gut microbiota contribute to PTSD susceptibility in male and female rats. Here, we utilized the single prolonged stress animal model and employed unsupervised machine learning to classify stressed animals into stress-susceptible subgroups and stress-resilient subgroups. Subsequently, using 16S V3-V4 rDNA sequencing, we investigated the differential gut microbiota alterations between susceptible and resilient individuals in male and female rats. Our findings revealed distinct changes in gut microbiota composition between the sexes at different taxonomic levels. Furthermore, the abundance of Parabacteroides was lower in rats that underwent SPS modeling compared to the control group. In addition, the abundance of Tenericutes in the stress-susceptible subgroup was higher than that in the control group and stress-resilient subgroup, suggesting that Tenericutes may be able to characterize stress susceptibility. What is particularly interesting here is that Cyanobacteria may be particularly associated with anti-anxiety effects in male rats. This study underscores sex-specific variations in gut microbiota composition in response to stress and sex differences should be taken into account when using macrobiotics for neuropsychiatric treatment, highlighting potential targets for PTSD therapeutic interventions.
Collapse
Affiliation(s)
- Dan Shen
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Liang Chang
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Feng Su
- College of Future Technology, Peking University, Beijing, China
| | - Shihao Huang
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Hubo Xu
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yue Si
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Feng Wang
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Yanxue Xue
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| |
Collapse
|
6
|
Tanelian A, Nankova B, Miari M, Sabban EL. Microbial composition, functionality, and stress resilience or susceptibility: unraveling sex-specific patterns. Biol Sex Differ 2024; 15:20. [PMID: 38409102 PMCID: PMC10898170 DOI: 10.1186/s13293-024-00590-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/31/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Following exposure to traumatic stress, women are twice as likely as men to develop mood disorders. Yet, individual responses to such stress vary, with some people developing stress-induced psychopathologies while others exhibit resilience. The factors influencing sex-related disparities in affective disorders as well as variations in resilience remain unclear; however, emerging evidence suggests differences in the gut microbiota play a role. In this study, using the single prolonged stress (SPS) model of post-traumatic stress disorder, we investigated pre- and post-existing differences in microbial composition, functionality, and metabolites that affect stress susceptibility or resilience in each sex. METHODS Male and female Sprague-Dawley rats were randomly assigned to control or SPS groups. Two weeks following SPS, the animals were exposed to a battery of behavioral tests and decapitated a day later. Based on their anxiety index, they were further categorized as SPS-resilient (SPS-R) or SPS-susceptible (SPS-S). On the day of dissection, cecum, and selected brain tissues were isolated. Stool samples were collected before and after SPS, whereas urine samples were taken before and 30 min into the SPS. RESULTS Before SPS exposure, the sympathoadrenal axis exhibited alterations within male subgroups only. Expression of tight junction protein claudin-5 was lower in brain of SPS-S males, but higher in SPS-R females following SPS. Across the study, alpha diversity remained consistently lower in males compared to females. Beta diversity revealed distinct separations between male and female susceptible groups before SPS, with this separation becoming evident in the resilient groups following SPS. At the genus level, Lactobacillus, Lachnospiraceae_Incertae_Sedis, and Barnesiella exhibited sex-specific alterations, displaying opposing abundances in each sex. Additionally, sex-specific changes were observed in microbial predictive functionality and targeted functional modules both before and after SPS. Alterations in the microbial short-chain fatty acids (SCFAs), were also observed, with major and minor SCFAs being lower in SPS-susceptible males whereas branched-chain SCFAs being higher in SPS-susceptible females. CONCLUSION This study highlights distinct pre- and post-trauma differences in microbial composition, functionality, and metabolites, associated with stress resilience in male and female rats. The findings underscore the importance of developing sex-specific therapeutic strategies to effectively address stress-related disorders. Highlights SPS model induces divergent anxiety and social behavioral responses to traumatic stress in both male and female rodents. SPS-resilient females displayed less anxiety-like behavior and initiated more interactions towards a juvenile rat than SPS-resilient males. Sex-specific pre-existing and SPS-induced differences in the gut microbial composition and predictive functionality were observed in susceptible and resilient rats. SPS-resilient males displayed elevated cecal acetate levels, whereas SPS-susceptible females exhibited heightened branched-chain SCFAs.
Collapse
Affiliation(s)
- Arax Tanelian
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA
| | - Bistra Nankova
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA
- Division of Newborn Medicine, Departments of Pediatrics, New York Medical College, Valhalla, NY, 10595, USA
| | - Mariam Miari
- Department of Clinical Sciences in Malmo, Lund University Diabetes Center, Malmo, Sweden
| | - Esther L Sabban
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, 10595, USA.
- Department of Psychiatry and Behavioral Science, New York Medical College, Valhalla, NY, 10595, USA.
| |
Collapse
|
7
|
Liu Q, Ding X, Wang Y, Chu H, Guan Y, Li M, Sun K. Artemisinin reduces PTSD-like symptoms, improves synaptic plasticity, and inhibits apoptosis in rats subjected to single prolonged stress. Front Pharmacol 2024; 15:1303123. [PMID: 38379899 PMCID: PMC10876839 DOI: 10.3389/fphar.2024.1303123] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/23/2024] [Indexed: 02/22/2024] Open
Abstract
Post-Traumatic Stress Disorder (PTSD) is a chronic mental disorder characterized by symptoms of panic and anxiety, depression, impaired cognitive functioning, and difficulty in social interactions. While the effect of the traditional Chinese medicine artemisinin (AR) on PTSD is unknown, its therapeutic benefits have been demonstrated by studies on models of multiple neurological disorders. This study aimed to extend such findings by investigating the effects of AR administration on a rat model of PTSD induced by a regimen of single prolonged stress (SPS). After rats were subjected to the SPS protocol, AR was administered and its impact on PTSD-like behaviors was evaluated. In the present study, rats were subjected to a multitude of behavioral tests to evaluate behaviors related to anxiety, memory function, and social interactions. The expression of hippocampal synaptic plasticity-related proteins was detected using Western blot and immunofluorescence. The ultrastructure of synapses was observed under transmission electron microscopy. The apoptosis of hippocampal neurons was examined with Western blot, TUNEL staining, and HE staining. The results showed that AR administration alleviated the PTSD-like phenotypes in SPS rats, including behavior indicative of anxiety, cognitive deficits, and diminished sociability. AR administration was further observed to improve synaptic plasticity and inhibit neuronal apoptosis in SPS rats. These findings suggest that administering AR after the onset of severe traumatic events may alleviate anxiety, cognitive deficits, and impaired social interaction, improve synaptic plasticity, and diminish neuronal apoptosis. Hence, the present study provides evidence for AR's potential as a multi-target agent in the treatment of PTSD.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Kuisheng Sun
- School of Laboratory Medicine, Weifang Medical University, Weifang, Shandong, China
| |
Collapse
|
8
|
Spinieli RL, Cazuza R, Sales AJ, Carolino R, Franci JA, Tajerian M, Leite-Panissi CRA. Acute restraint stress regulates brain DNMT3a and promotes defensive behaviors in male rats. Neurosci Lett 2024; 820:137589. [PMID: 38101612 PMCID: PMC10947420 DOI: 10.1016/j.neulet.2023.137589] [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: 09/25/2023] [Revised: 11/16/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Depending on its duration and severity, stress may contribute to neuropsychiatric diseases such as depression and anxiety. Studies have shown that stress impacts the hypothalamic-pituitary-adrenal (HPA) axis, but its downstream molecular, behavioral, and nociceptive effects remain unclear. We hypothesized that a 2-hour single exposure to acute restraint stress (ARS) activates the HPA axis and changes DNA methylation, a molecular mechanism involved in the machinery of stress regulation. We further hypothesized that ARS induces anxiety-like and risk assessment behavior and alters nociceptive responses in the rat. We employed biochemical (radioimmunoassay for corticosterone; global DNA methylation by enzyme immunoassay and western blot for DNMT3a expression in the amygdala, ventral hippocampus, and prefrontal cortex) and behavioral (elevated plus maze and dark-light box for anxiety and hot plate test for nociception) tests in adult male Wistar rats exposed to ARS or handling (control). All analyses were performed 24 h after ARS or handling. We found that ARS increased corticosterone levels in the blood, increased the expression of DNMT3a in the prefrontal cortex, promoted anxiety-like and risk assessment behaviors in the elevated plus maze, and increased the nociceptive threshold observed in the hot plate test. Our findings suggest that ARS might be a helpful rat model for studying acute stress and its effects on physiology, epigenetic machinery, and behavior.
Collapse
Affiliation(s)
- Richard L Spinieli
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto of the University of São Paulo, Brazil.
| | - Rafael Cazuza
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto of the University of São Paulo, Brazil
| | - Amanda J Sales
- Department of Pharmacology, Medical School of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Ruither Carolino
- Department of Basic and Oral Biology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Janete A Franci
- Department of Basic and Oral Biology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Maral Tajerian
- Department of Biology, Queens College, City University of New York, Flushing, NY, United States; The Graduate Center, City University of New York, New York, NY, United States
| | - Christie R A Leite-Panissi
- Department of Psychology, School of Philosophy, Science and Literature of Ribeirão Preto of the University of São Paulo, Brazil.
| |
Collapse
|
9
|
Briggs JF, McMullen KM. Retrograde amnesia for the stress-induced impairment of extinction: time-dependent and not so forgotten. Learn Mem 2024; 31:a053895. [PMID: 38286522 PMCID: PMC10903941 DOI: 10.1101/lm.053895.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/05/2023] [Indexed: 01/31/2024]
Abstract
We investigated whether retrograde amnesia for the stress-induced impairment of extinction retrieval shares similar characteristics with original acquisition memories. The first experiment demonstrated that cycloheximide administered shortly after a single restraint stress session alleviated the impairment of extinction retrieval but not when administered following a longer delay (i.e., the amnesia for stress is time-dependent). A second experiment showed that the retrograde amnesia for stress could be alleviated by a second brief exposure to the stressor. These results demonstrating that amnesia for stress shares characteristics similar to original memories are explained using a retrieval-based memory integration model of retrograde amnesia.
Collapse
Affiliation(s)
- James F Briggs
- Department of Psychology, Susquehanna University, Selinsgrove, Pennsylvania 17870, USA
| | - Kaitlyn M McMullen
- Department of Psychology, Susquehanna University, Selinsgrove, Pennsylvania 17870, USA
| |
Collapse
|
10
|
Sep MSC, Geuze E, Joëls M. Impaired learning, memory, and extinction in posttraumatic stress disorder: translational meta-analysis of clinical and preclinical studies. Transl Psychiatry 2023; 13:376. [PMID: 38062029 PMCID: PMC10703817 DOI: 10.1038/s41398-023-02660-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 10/28/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023] Open
Abstract
Current evidence-based treatments for post-traumatic stress disorder (PTSD) are efficacious in only part of PTSD patients. Therefore, novel neurobiologically informed approaches are urgently needed. Clinical and translational neuroscience point to altered learning and memory processes as key in (models of) PTSD psychopathology. We extended this notion by clarifying at a meta-level (i) the role of information valence, i.e. neutral versus emotional/fearful, and (ii) comparability, as far as applicable, between clinical and preclinical phenotypes. We hypothesized that cross-species, neutral versus emotional/fearful information processing is, respectively, impaired and enhanced in PTSD. This preregistered meta-analysis involved a literature search on PTSD+Learning/Memory+Behavior, performed in PubMed. First, the effect of information valence was estimated with a random-effects meta-regression. The sources of variation were explored with a random forest-based analysis. The analyses included 92 clinical (N = 6732 humans) and 182 preclinical (N = 6834 animals) studies. A general impairment of learning, memory and extinction processes was observed in PTSD patients, regardless of information valence. Impaired neutral learning/memory and fear extinction were also present in animal models of PTSD. Yet, PTSD models enhanced fear/trauma memory in preclinical studies and PTSD impaired emotional memory in patients. Clinical data on fear/trauma memory was limited. Mnemonic phase and valence explained most variation in rodents but not humans. Impaired neutral learning/memory and fear extinction show stable cross-species PTSD phenotypes. These could be targeted for novel PTSD treatments, using information gained from neurobiological animal studies. We argue that apparent cross-species discrepancies in emotional/fearful memory deserve further in-depth study; until then, animal models targeting this phenotype should be applied with utmost care.
Collapse
Affiliation(s)
- Milou S C Sep
- Brain Research and Innovation Centre, Ministry of Defence, Utrecht, the Netherlands.
- Department of Translational Neuroscience, UMC Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands.
- GGZ inGeest Mental Health Care, Amsterdam, The Netherlands.
- Amsterdam Neuroscience, Mood, Anxiety, Psychosis, Sleep & Stress Program, Amsterdam, The Netherlands.
- Amsterdam Public Health, Mental Health Program, Amsterdam, The Netherlands.
- Department of Psychiatry, Amsterdam University Medical Center location Vrije Universiteit, Amsterdam, The Netherlands.
| | - Elbert Geuze
- Brain Research and Innovation Centre, Ministry of Defence, Utrecht, the Netherlands
- Department of Psychiatry, UMC Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
| | - Marian Joëls
- Department of Translational Neuroscience, UMC Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
11
|
Iqbal J, Huang GD, Xue YX, Yang M, Jia XJ. The neural circuits and molecular mechanisms underlying fear dysregulation in posttraumatic stress disorder. Front Neurosci 2023; 17:1281401. [PMID: 38116070 PMCID: PMC10728304 DOI: 10.3389/fnins.2023.1281401] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/13/2023] [Indexed: 12/21/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a stress-associated complex and debilitating psychiatric disorder due to an imbalance of neurotransmitters in response to traumatic events or fear. PTSD is characterized by re-experiencing, avoidance behavior, hyperarousal, negative emotions, insomnia, personality changes, and memory problems following exposure to severe trauma. However, the biological mechanisms and symptomatology underlying this disorder are still largely unknown or poorly understood. Considerable evidence shows that PTSD results from a dysfunction in highly conserved brain systems involved in regulating stress, anxiety, fear, and reward circuitry. This review provides a contemporary update about PTSD, including new data from the clinical and preclinical literature on stress, PTSD, and fear memory consolidation and extinction processes. First, we present an overview of well-established laboratory models of PTSD and discuss their clinical translational value for finding various treatments for PTSD. We then highlight the research progress on the neural circuits of fear and extinction-related behavior, including the prefrontal cortex, hippocampus, and amygdala. We further describe different molecular mechanisms, including GABAergic, glutamatergic, cholinergic, and neurotropic signaling, responsible for the structural and functional changes during fear acquisition and fear extinction processes in PTSD.
Collapse
Affiliation(s)
- Javed Iqbal
- Shenzhen Graduate School, Peking University Shenzhen, Guangdong, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital and Shenzhen Mental Health Center; Clinical College of Mental Health, Shenzhen University Health Science Center; Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Geng-Di Huang
- Shenzhen Graduate School, Peking University Shenzhen, Guangdong, China
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital and Shenzhen Mental Health Center; Clinical College of Mental Health, Shenzhen University Health Science Center; Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, Guangdong, 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 and Shenzhen Mental Health Center; Clinical College of Mental Health, Shenzhen University Health Science Center; Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Xiao-Jian Jia
- Department of Addiction Medicine, Shenzhen Engineering Research Center for Precision Psychiatric Technology, Shenzhen Clinical Research Center for Mental Disorders, Shenzhen Kangning Hospital and Shenzhen Mental Health Center; Clinical College of Mental Health, Shenzhen University Health Science Center; Affiliated Mental Health Center, Southern University of Science and Technology, Shenzhen, Guangdong, China
| |
Collapse
|
12
|
Ben-Azu B, Adebayo OG, Moke EG, Omogbiya AI, Oritsemuelebi B, Chidebe EO, Umukoro E, Nwangwa EK, Etijoro E, Umukoro E, Mamudu EJ, Chukwuma C. Geraniol attenuates behavioral and neurochemical impairments by inhibitions of HPA-axis and oxido-inflammatory perturbations in mice exposed to post-traumatic stress disorder. J Psychiatr Res 2023; 168:165-175. [PMID: 37913743 DOI: 10.1016/j.jpsychires.2023.10.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/23/2023] [Accepted: 10/25/2023] [Indexed: 11/03/2023]
Abstract
Geraniol is an acyclic isoprenoid monoterpenoid analogue that has been shown to elicit neuroprotective functions, primarily through its ability to stimulate antioxidant and anti-inflammatory systems. An increase in inflammatory cytokines and oxidative stress exacerbate activation hypothalamic-pituitary-adrenal axis (HPA), leading to neurochemical dysfunction, which has important roles in the pathogenesis of post-traumatic disorder (PTSD), a mental health disorder characterized of post-trauma-induced intense fear. The aim of this study was to evaluate the anti-PTSD-like effects and underlying mechanisms of geraniol against single-prolonged-stress (SPS)-induced PTSD in mice. Following concomitant exposure to SPS (triple-paradigm traumatic events) and isolation for 7 days, mice (n = 9) were treated with geraniol (50 and 100 mg/kg, p.o.) or fluoxetine (10 mg/kg, p.o.) from days 8-21. Mice were assessed for behavioral changes. Neurochemical changes, inflammatory, oxido-nitrergic markers, adrenal weight, serum glucose and corticosterone concentrations were assayed. Geraniol inhibits SPS-induced anxiety- and depressive-like features as well as behavioral despair in the depression paradigms. SPS-induced locomotor and memory impairments were also abated by geraniol treatment similarly to fluoxetine. SPS-induced adrenal hypertrophy and increased blood glucose and corticosterone concentrations, were attenuated by the geraniol treatment. Elevated levels of TNF-α and IL-6, and malondialdehyde, nitrite, acetylcholinesterase enzyme were reduced by geraniol. Geraniol also increased glutathione, superoxide-dismutase, and catalase levels as well as dopamine, serotonin concentrations and GABAergic glutamic acid decarboxylase enzyme activity in the striatum, prefrontal cortex and hippocampus in the PTSD-mice relative to SPS control. In conclusion, geraniol attenuates behavioral impairments and neurochemical dysregulations by inhibitions of HPA-axis and oxido-inflammatory perturbations in mice exposed to PTSD.
Collapse
Affiliation(s)
- Benneth Ben-Azu
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria.
| | - Olusegun G Adebayo
- Neurophysiology Unit, Department of Physiology, Faculty of Basic Medical Sciences, PAMO University of Medical Sciences, Port-Harcourt, River State, Nigeria
| | - Emuesiri G Moke
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Adrian I Omogbiya
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Benjamin Oritsemuelebi
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Emmanuel O Chidebe
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Emuesiri Umukoro
- Department of Pharmacology and Therapeutics, Faculty of Basic Clinical Sciences, College of Medicine Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Eze K Nwangwa
- Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Emmanuel Etijoro
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Emmanuel Umukoro
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Elizabeth J Mamudu
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Chineye Chukwuma
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| |
Collapse
|
13
|
Cai M, Park HR, Yang EJ. Electroacupuncture modulates glutamate neurotransmission to alleviate PTSD-like behaviors in a PTSD animal model. Transl Psychiatry 2023; 13:357. [PMID: 37993441 PMCID: PMC10665470 DOI: 10.1038/s41398-023-02663-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 10/24/2023] [Accepted: 11/09/2023] [Indexed: 11/24/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a mental disorder that develops after exposure to a traumatic event. Owing to the relatively low rates of response and remission with selective serotonin reuptake inhibitors as the primary treatment for PTSD, there is a recognized need for alternative strategies to effectively address the symptoms of PTSD. Dysregulation of glutamatergic neurotransmission plays a critical role in various disorders, including anxiety, depression, PTSD, and Alzheimer's disease. Therefore, the regulation of glutamate levels holds great promise as a therapeutic target for the treatment of mental disorders. Electroacupuncture (EA) has become increasingly popular as a complementary and alternative medicine approach. It maintains the homeostasis of central nervous system (CNS) function and alleviates symptoms associated with anxiety, depression, and insomnia. This study investigated the effects of EA at the GV29 (Yintang) acupoint three times per week for 2 weeks in an animal model of PTSD. PTSD was induced using single prolonged stress/shock (SPSS) in mice, that is, SPS with additional foot shock stimulation. EA treatment significantly reduced PTSD-like behavior and effectively regulated serum corticosterone and serotonin levels in the PTSD model. Additionally, EA treatment decreased glutamate levels and glutamate neurotransmission-related proteins (pNR1 and NR2B) in the hippocampus of a PTSD model. In addition, neuronal activity and the number of Golgi-impregnated dendritic spines were significantly lower in the EA treatment group than in the SPSS group. Notably, EA treatment effectively reduced glutamate-induced excitotoxicity (caspase-3, Bax, and pJNK). These findings suggest that EA treatment at the GV29 acupoint holds promise as a potential therapeutic approach for PTSD, possibly through the regulation of NR2B receptor-mediated glutamate neurotransmission to reduce PTSD-like behaviors.
Collapse
Affiliation(s)
- Mudan Cai
- KM Science Research Division, Korea Institute of Oriental Medicine (KIOM), 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Korea
| | - Hee Ra Park
- KM Science Research Division, Korea Institute of Oriental Medicine (KIOM), 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Korea
| | - Eun Jin Yang
- KM Science Research Division, Korea Institute of Oriental Medicine (KIOM), 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Korea.
| |
Collapse
|
14
|
Sabban EL, Serova L, Nahvi RJ, Liu X. Potential benefits of intranasal neuropeptide Y include sustained extinction of fear memory. J Neuroendocrinol 2023; 35:e13279. [PMID: 37157881 DOI: 10.1111/jne.13279] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 05/10/2023]
Abstract
Compelling evidence in animals and humans from a variety of approaches demonstrate that neuropeptide Y (NPY) in the brain can provide resilience to development of many stress-elicited symptoms. Preclinical experiments demonstrated that delivery of NPY by intranasal infusion to rats shortly after single exposure to traumatic stress in the single prolonged stress (SPS) rodent model of post-traumatic stress disorder (PTSD) can prevent development of many relevant behavioral alterations weeks later, including heightened anxiety and depressive-like behavior. Here, we examined responses to intranasal NPY in the absence of stress to evaluate the safety profile. Rats were administered intranasal NPY (150 μg/rat) or equal volume of vehicle (distilled water), and 7 days later they were tested on the elevated plus maze (EPM) and forced swim test (FST). There was no significant difference in the number of entries or duration in the open or closed arms, or in their anxiety index. Defecation on the EPM and immobility on the FST, measures of anxiety and depressive-like behavior respectively, were similar in both groups. To further characterize potential benefits of intranasal NPY, its effect on fear memory and extinction, important features of PTSD, were examined. Intranasal administration of NPY at the time of the traumatic stress had a profound effect on fear conditioning a week later. It prevented the SPS-triggered impairment in the retention of extinguished behavior, both contextual and cued. The findings support the translation of non-invasive intranasal NPY delivery to the brain for PTSD-behaviors including impairments in sustained extinction of fear memories.
Collapse
Affiliation(s)
- Esther L Sabban
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, New York, USA
| | - Lidia Serova
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, New York, USA
| | - Roxanna J Nahvi
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, New York, USA
| | - Xiaoping Liu
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, New York, USA
| |
Collapse
|
15
|
Tanelian A, Nankova B, Hu F, Sahawneh JD, Sabban EL. Effect of acetate supplementation on traumatic stress-induced behavioral impairments in male rats. Neurobiol Stress 2023; 27:100572. [PMID: 37781563 PMCID: PMC10539924 DOI: 10.1016/j.ynstr.2023.100572] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/06/2023] [Accepted: 09/16/2023] [Indexed: 10/03/2023] Open
Abstract
Gut microbiota and their metabolites have emerged as key players in the pathogenesis of neuropsychiatric disorders. Recently, we demonstrated that animals susceptible to Single Prolonged Stress (SPS) have an overall pro-inflammatory gut microbiota and significantly lower cecal acetate levels than SPS-resilient rats, which correlated inversely with the anxiety index. Here, we investigated whether the microbial metabolite, acetate, could ameliorate SPS-triggered impairments. Male rats were randomly divided into unstressed controls or groups exposed to SPS. The groups received continued oral supplementation of either 150 mM of sodium acetate or 150 mM of sodium chloride-matched water. Two weeks after SPS, a battery of behavioral tests was performed, and the animals were euthanized the following day. While not affecting the unstressed controls, acetate supplementation reduced the impact of SPS on body weight gain and ameliorated SPS-induced anxiety-like behavior and the impairments in social interaction, but not depressive-like behavior. These changes were accompanied by several beneficial effects of acetate supplementation. Acetate alleviated the stress response by reducing urinary epinephrine levels, induced epigenetic modification by decreasing histone deacetylase (HDAC2) gene expression, inhibited neuroinflammation by reducing the density of Iba1+ cells and the gene expression of IL-1ß in the hippocampus, and increased serum β-hydroxybutyrate levels. The findings reveal a causal relationship between oral acetate treatment and mitigation of several SPS-induced behavioral impairments. Mechanistically, it impacted neuronal and metabolic pathways including changes in stress response, epigenetic modifications, neuroinflammation and showed novel link to ketone body production. The study demonstrates the preventive-therapeutic potential of acetate supplementation to alleviate adverse responses to traumatic stress.
Collapse
Affiliation(s)
- Arax Tanelian
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, USA
| | - Bistra Nankova
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, USA
- Division of Newborn Medicine, Departments of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Furong Hu
- Division of Newborn Medicine, Departments of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Jordan D. Sahawneh
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, USA
| | - Esther L. Sabban
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY, USA
- Department of Psychiatry and Behavioral Science, New York Medical College, Valhalla, NY, USA
| |
Collapse
|
16
|
Giovanniello J, Bravo-Rivera C, Rosenkranz A, Matthew Lattal K. Stress, associative learning, and decision-making. Neurobiol Learn Mem 2023; 204:107812. [PMID: 37598745 DOI: 10.1016/j.nlm.2023.107812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/10/2023] [Revised: 06/02/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Exposure to acute and chronic stress has significant effects on the basic mechanisms of associative learning and memory. Stress can both impair and enhance associative learning depending on type, intensity, and persistence of the stressor, the subject's sex, the context that the stress and behavior is experienced in, and the type of associative learning taking place. In some cases, stress can cause or exacerbate the maladaptive behavior that underlies numerous psychiatric conditions including anxiety disorders, obsessive-compulsive disorder, post-traumatic stress disorder, substance use disorder, and others. Therefore, it is critical to understand how the varied effects of stress, which may normally facilitate adaptive behavior, can also become maladaptive and even harmful. In this review, we highlight several findings of associative learning and decision-making processes that are affected by stress in both human and non-human subjects and how they are related to one another. An emerging theme from this work is that stress biases behavior towards less flexible strategies that may reflect a cautious insensitivity to changing contingencies. We consider how this inflexibility has been observed in different associative learning procedures and suggest that a goal for the field should be to clarify how factors such as sex and previous experience influence this inflexibility.
Collapse
Affiliation(s)
| | - Christian Bravo-Rivera
- Departments of Psychiatry and Anatomy & Neurobiology, University of Puerto Rico School of Medicine, San Juan, PR 00935, United States.
| | - Amiel Rosenkranz
- Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Chicago Medical School, Rosalind Franklin University of Medicine and Science, United States.
| | - K Matthew Lattal
- Department of Behavioral Neuroscience, Oregon Health & Science University, United States.
| |
Collapse
|
17
|
Lai CW, Chang CH. Pharmacological activation of the amygdala, but not single prolonged footshock-induced acute stress, interferes with cue-induced motivation toward food rewards in rats. Front Behav Neurosci 2023; 17:1252868. [PMID: 37781505 PMCID: PMC10538645 DOI: 10.3389/fnbeh.2023.1252868] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/25/2023] [Indexed: 10/03/2023] Open
Abstract
In the face of threats, animals adapt their behaviors to cope with the situation. Under such circumstances, irrelevant behaviors are usually suppressed. In this study, we examined whether food-seeking motivation would decrease under activation of the amygdala, an important nucleus in the regulation of stress response in the central nervous system, or after a physical acute stress session. In Experiment 1, we pharmacologically activated the basolateral nucleus (BLA) or the central nucleus of the amygdala (CeA) before a cue-induced reinstatement test in rats. Our results showed that activation of the BLA or the CeA abolished cue-induced motivation toward food rewards, while locomotor activity and free food intake were not affected. In Experiments 2 and 3, we further assessed anxiety and despair levels, as well as cue-induced reinstatement, after a single prolonged footshock-induced acute stress in rats. Behaviorally, acute stress did not affect anxiety level, despair level, or cue-induced motivation toward food rewards. Physiologically, there was no difference in cellular activities of the amygdala immediately after acute stress. To conclude, our results suggested that pharmacological activation of the amygdala decreased cue-induced motivation toward food reward. However, physiological acute stress did not immediately interfere with the negative emotions, motivation, or amygdala activities of the animals.
Collapse
Affiliation(s)
- Chien-Wen Lai
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - Chun-hui Chang
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan
- Institute of Systems Neuroscience, National Tsing Hua University, Hsinchu, Taiwan
- Brain Research Center, National Tsing Hua University, Hsinchu, Taiwan
| |
Collapse
|
18
|
Collins B, Biddle M, Wood DR, Boyapati S, Barth M, Jeun C, Knox D. The role of avoidance in modulating single prolonged stress effects on emotional memory in male and female rats. Behav Brain Res 2023; 452:114579. [PMID: 37451551 PMCID: PMC10530017 DOI: 10.1016/j.bbr.2023.114579] [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: 05/09/2023] [Revised: 07/03/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
The incidence of post traumatic stress disorder (PTSD) is greater in women than men, but mechanisms via which this difference manifests remain under explored. The single prolonged stress (SPS) rodent model of traumatic stress has been used to identify mechanisms through which traumatic stress leads to deficits in retaining extinction (a core PTSD symptom), but has been mostly utilized in male model systems. Recent studies have observed that SPS leads to changes in persistent fear memory in female rats, though these results are variable. This variability could be driven by changes in behavioral strategy in females during extinction, but this possibility has not been sufficiently explored. To address this, we examined the impact of SPS on freezing and avoidance (a core PTSD symptom) during extinction in male and female rats. In male rats, SPS enhanced acquisition of conditioned freezing, but did not enhance freezing during extinction training or testing. SPS also decreased avoidance during extinction training, but not extinction testing. In female rats, SPS had no impact on conditioned freezing. Avoidance was not observed in control rats, but emerged in SPS/female rats during extinction testing. Furthermore, avoidance was negatively correlated with freezing in female rats (high avoidance associated with lower freezing), but this relationship was disrupted with SPS. The results suggest that introducing avoidance during extinction negates SPS effects on extinction retention in male and female rats, control/female rats engage in avoidance to regulate fear expression, and this relationship is disrupted with SPS.
Collapse
Affiliation(s)
- Bailey Collins
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Matthew Biddle
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Donna R Wood
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Sushma Boyapati
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Michelle Barth
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Celine Jeun
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA
| | - Dayan Knox
- Department of Psychological and Brain Science, University of Delaware, Newark, DE, USA.
| |
Collapse
|
19
|
Malik H, Usman M, Arif M, Ahmed Z, Ali G, Rauf K, Sewell RDE. Diosgenin normalization of disrupted behavioral and central neurochemical activity after single prolonged stress. Front Pharmacol 2023; 14:1232088. [PMID: 37663254 PMCID: PMC10468593 DOI: 10.3389/fphar.2023.1232088] [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: 05/31/2023] [Accepted: 08/01/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction: Post-traumatic stress disorder (PTSD) is a chronic mental illness triggered by traumatic experiences such as wars, natural disasters, or catastrophes, and it is characterized by anxiety, depression and cognitive impairment. Diosgenin is a steroidal sapogenin with known neuroprotective and antioxidant properties. This study aimed to assess the pharmacological potential of diosgenin in a single prolonged stress (SPS) model of PTSD, plus other behavioral models along with any consequent alterations in brain neurochemistry in male mice. Methodology: SPS was induced by restraining animals for 2 h, followed by 20 min of forced swim, recuperation for 15 min, and finally, exposure to ether to induce anesthesia. The SPS-exposed animals were treated with diosgenin (20, 40, and 60 mg/kg) and compared with the positive controls, fluoxetine or donepezil, then they were observed for any changes in anxiety/depression-like behaviors, and cognitive impairment. After behavioral screening, postmortem serotonin, noradrenaline, dopamine, vitamin C, adenosine and its metabolites inosine and hypoxanthine were quantified in the frontal cortex, hippocampus, and striatum by high-performance liquid chromatography. Additionally, animal serum was screened for changes in corticosterone levels. Results: The results showed that diosgenin reversed anxiety- and depression-like behaviors, and ameliorated cognitive impairment in a dose-dependent manner. Additionally, diosgenin restored monoamine and vitamin C levels dose-dependently and modulated adenosine and its metabolites in the brain regions. Diosgenin also reinstated otherwise increased serum corticosterone levels in SPS mice. Conclusion: The findings suggest that diosgenin may be a potential candidate for improving symptoms of PTSD.
Collapse
Affiliation(s)
- Hurmat Malik
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Muhammad Usman
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Mehreen Arif
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Zainab Ahmed
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Robert D. E. Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| |
Collapse
|
20
|
Li Y, Zhi W, Qi B, Wang L, Hu X. Update on neurobiological mechanisms of fear: illuminating the direction of mechanism exploration and treatment development of trauma and fear-related disorders. Front Behav Neurosci 2023; 17:1216524. [PMID: 37600761 PMCID: PMC10433239 DOI: 10.3389/fnbeh.2023.1216524] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/18/2023] [Indexed: 08/22/2023] Open
Abstract
Fear refers to an adaptive response in the face of danger, and the formed fear memory acts as a warning when the individual faces a dangerous situation again, which is of great significance to the survival of humans and animals. Excessive fear response caused by abnormal fear memory can lead to neuropsychiatric disorders. Fear memory has been studied for a long time, which is of a certain guiding effect on the treatment of fear-related disorders. With continuous technological innovations, the study of fear has gradually shifted from the level of brain regions to deeper neural (micro) circuits between brain regions and even within single brain regions, as well as molecular mechanisms. This article briefly outlines the basic knowledge of fear memory and reviews the neurobiological mechanisms of fear extinction and relapse, which aims to provide new insights for future basic research on fear emotions and new ideas for treating trauma and fear-related disorders.
Collapse
Affiliation(s)
- Ying Li
- College of Education, Hebei University, Baoding, China
- Laboratory of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Weijia Zhi
- Laboratory of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Bing Qi
- College of Education, Hebei University, Baoding, China
| | - Lifeng Wang
- Laboratory of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xiangjun Hu
- College of Education, Hebei University, Baoding, China
- Laboratory of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| |
Collapse
|
21
|
Lo Y, Yi PL, Hsiao YT, Lee TY, Chang FC. A prolonged stress rat model recapitulates some PTSD-like changes in sleep and neuronal connectivity. Commun Biol 2023; 6:716. [PMID: 37438582 DOI: 10.1038/s42003-023-05090-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 07/02/2023] [Indexed: 07/14/2023] Open
Abstract
Chronic post-traumatic stress disorder (PTSD) exhibits psychological abnormalities during fear memory processing in rodent models. To simulate long-term impaired fear extinction in PTSD patients, we constructed a seven-day model with multiple prolonged stress (MPS) by modifying manipulation repetitions, intensity, and unpredictability of stressors. Behavioral and neural changes following MPS conveyed longitudinal PTSD-like effects in rats for 6 weeks. Extended fear memory was estimated through fear retrieval induced-freezing behavior and increased long-term serum corticosterone concentrations after MPS manipulation. Additionally, memory retrieval and behavioral anxiety tasks continued enhancing theta oscillation activity in the prefrontal cortex-basal lateral amygdala-ventral hippocampus pathway for an extended period. Moreover, MPS and remote fear retrieval stimuli disrupted sleep-wake activities to consolidate fear memory. Our prolonged fear memory, neuronal connectivity, anxiety, and sleep alteration results demonstrated integrated chronic PTSD symptoms in an MPS-induced rodent model.
Collapse
Affiliation(s)
- Yun Lo
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan
| | - Pei-Lu Yi
- Department of Sport Management, College of Tourism, Leisure and Sports, Aletheia University, New Taipei City, 25103, Taiwan.
| | - Yi-Tse Hsiao
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan
| | - Tung-Yen Lee
- Graduate Institute of Brain & Mind Sciences, College of Medicine, National Taiwan University, Taipei, 110225, Taiwan
| | - Fang-Chia Chang
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan.
- Graduate Institute of Brain & Mind Sciences, College of Medicine, National Taiwan University, Taipei, 110225, Taiwan.
- Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, 10617, Taiwan.
- Graduate Institute of Acupuncture Science, College of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.
- Department of Medicine, College of Medicine, China Medical University, Taichung, 40402, Taiwan.
| |
Collapse
|
22
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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.
| |
Collapse
|
23
|
Sadeghi MA, Nassireslami E, Yousefi Zoshk M, Hosseini Y, Abbasian K, Chamanara M. Phosphodiesterase inhibitors in psychiatric disorders. Psychopharmacology (Berl) 2023; 240:1201-1219. [PMID: 37060470 DOI: 10.1007/s00213-023-06361-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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] [Received: 10/28/2022] [Accepted: 03/27/2023] [Indexed: 04/16/2023]
Abstract
RATIONALE Challenges in drug development for psychiatric disorders have left much room for the introduction of novel treatments with better therapeutic efficacies and indices. As a result, intense research has focused on identifying new targets for developing such pharmacotherapies. One of these targets may be the phosphodiesterase (PDE) class of enzymes, which play important roles in intracellular signaling. Due to their critical roles in cellular pathways, these enzymes affect diverse neurobiological functions from learning and memory formation to neuroinflammation. OBJECTIVES In this paper, we reviewed studies on the use of PDE inhibitors (PDEIs) in preclinical models and clinical trials of psychiatric disorders including depression, anxiety, schizophrenia, post-traumatic stress disorder (PTSD), bipolar disorder (BP), sexual dysfunction, and feeding disorders. RESULTS PDEIs are able to improve symptoms of psychiatric disorders in preclinical models through activating the cAMP-PKA-CREB and cGMP-PKG pathways, attenuating neuroinflammation and oxidative stress, and stimulating neural plasticity. The most promising therapeutic candidates to emerge from these preclinical studies are PDE2 and PDE4 inhibitors for depression and anxiety and PDE1 and PDE10 inhibitors for schizophrenia. Furthermore, PDE3 and 4 inhibitors have shown promising results in clinical trials in patients with depression and schizophrenia. CONCLUSIONS Larger and better designed clinical studies of PDEIs in schizophrenia, depression, and anxiety are warranted to facilitate their translation into the clinic. Regarding the other conditions discussed in this review (most notably PTSD and BP), better characterization of the effects of PDEIs in preclinical models is required before clinical studies.
Collapse
Affiliation(s)
- Mohammad Amin Sadeghi
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Ehsan Nassireslami
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Mojtaba Yousefi Zoshk
- Trauma Research Center, AJA University of Medical Sciences, Tehran, Iran
- Department of Pediatrics, AJA University of Medical Sciences, Tehran, Iran
| | - Yasaman Hosseini
- Cognitive Neuroscience Center, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Kourosh Abbasian
- Management and Health Economics Department, AJA University of Medical Sciences, Tehran, Iran
| | - Mohsen Chamanara
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran.
- Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
24
|
Sanchís-Ollé M, Belda X, Gagliano H, Visa J, Nadal R, Armario A. Animal models of PTSD: Comparison of the neuroendocrine and behavioral sequelae of immobilization and a modified single prolonged stress procedure that includes immobilization. J Psychiatr Res 2023; 160:195-203. [PMID: 36842332 DOI: 10.1016/j.jpsychires.2023.02.020] [Citation(s) in RCA: 1] [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] [Received: 11/16/2022] [Revised: 01/27/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
A single exposure to some stressors results in long-lasting consequences reminiscent of those found in post-traumatic stress disorder (PTSD), but results are very often controversial. Although there is no consensus regarding the best animal models of PTSD, the single prolonged stress (SPS) model, consisting of sequential exposure within the same day to various stressors (typically restraint, forced swim, and ether), has gained acceptance. However, results, particularly those related to the hypothalamic-pituitary-adrenal (HPA) axis, are inconsistent and there is no evidence that SPS is clearly distinct from models using a single severe stressor. In the present study, we compared in male rats the behavioral and neuroendocrine (HPA) consequences of exposure to immobilization on boards (IMO) with a SPS-like model (SPSi) in which IMO and isoflurane were substituted for restraint and ether, respectively. Both procedures caused a similar impact on food intake and body weight as well as on sensitization of the HPA response to a novel environment (hole-board) on the following day. Reduction of activity/exploration in the hole-board was also similar with both stressors, although the impact of sudden noise was higher in SPSi than IMO. Neither IMO nor SPSi significantly affected contextual fear conditioning acquisition, although a similar trend for impaired fear extinction was observed compared to controls. Exposure to additional stressors in the SPSi did not interfere with homotypic adaptation of the HPA axis to IMO. Thus, only modest neuroendocrine and behavioral differences were observed between IMO and SPSi and more studies comparing putative PTSD models are needed.
Collapse
Affiliation(s)
- María Sanchís-Ollé
- Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain
| | - Xavier Belda
- Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain
| | - Humberto Gagliano
- Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain
| | - Joan Visa
- Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain
| | - Roser Nadal
- Unitat Mixta Translacional, Spain; Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; Psychobiology Unit, School of Psychology, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; CIBERSAM, Instituto de Salud Carlos III, Spain
| | - Antonio Armario
- Unitat Mixta Translacional, Spain; Institut de Neurociències, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Cerdanyola Del Vallès, 08193, Barcelona, Spain; CIBERSAM, Instituto de Salud Carlos III, Spain.
| |
Collapse
|
25
|
Li J, Tong L, Schock BC, Ji LL. Post-traumatic Stress Disorder: Focus on Neuroinflammation. Mol Neurobiol 2023; 60:3963-3978. [PMID: 37004607 DOI: 10.1007/s12035-023-03320-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/09/2023] [Indexed: 04/04/2023]
Abstract
Post-traumatic stress disorder (PTSD), gaining increasing attention, is a multifaceted psychiatric disorder that occurs following a stressful or traumatic event or series of events. Recently, several studies showed a close relationship between PTSD and neuroinflammation. Neuroinflammation, a defense response of the nervous system, is associated with the activation of neuroimmune cells such as microglia and astrocytes and with changes in inflammatory markers. In this review, we first analyzed the relationship between neuroinflammation and PTSD: the effect of stress-derived activation of the hypothalamic-pituitary-adrenal (HPA) axis on the main immune cells in the brain and the effect of stimulated immune cells in the brain on the HPA axis. We then summarize the alteration of inflammatory markers in brain regions related to PTSD. Astrocytes are neural parenchymal cells that protect neurons by regulating the ionic microenvironment around neurons. Microglia are macrophages of the brain that coordinate the immunological response. Recent studies on these two cell types provided new insight into neuroinflammation in PTSD. These contribute to promoting comprehension of neuroinflammation, which plays a pivotal role in the pathogenesis of PTSD.
Collapse
Affiliation(s)
- Jimeng Li
- Department of 2nd Clinical College, China Medical University, Shenyang, Liaoning, China
| | - Lei Tong
- Department of Anatomy, College of Basic Sciences, China Medical University, Shenyang, Liaoning, China
| | - Bettina C Schock
- The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast Faculty of Medicine Health and Life Sciences, Belfast, UK
| | - Li-Li Ji
- Department of Anatomy, College of Basic Sciences, China Medical University, Shenyang, Liaoning, China.
| |
Collapse
|
26
|
Levesque P, Desmeules C, Béchard L, Huot-Lavoie M, Demers MF, Roy MA, Deslauriers J. Sex-specific immune mechanisms in PTSD symptomatology and risk: A translational overview and perspectives. Brain Res Bull 2023; 195:120-129. [PMID: 36822271 DOI: 10.1016/j.brainresbull.2023.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 12/01/2022] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 02/23/2023]
Abstract
Altered immune function in patients with posttraumatic stress disorder (PTSD) may play a role in the disorder pathophysiology and onset. Women are more likely to develop PTSD, suggesting potential sex-specific inflammatory mechanisms underlying the dichotomous prevalence and risk of PTSD in men and women. In this review we examine the available literature to better assess the state of knowledge in the field. In humans, increased systemic inflammation is found in both men and women with PTSD, but seems to be at a greater extend in women. Despite the existence of few clinical studies taking account of sex as a factor in the observed immune changes in PTSD, challenges in the study of sex-specific immune function in humans include: controlling for confounding variates such as the type of trauma and the ethnicity; and limited methodologies available to study central nervous system (CNS)-relevant changes. Thus, preclinical studies are a valuable tool to provide us with key insights on sex-specific peripheral and CNS immune mechanisms underlying PTSD. Available preclinical studies reported increased systemic and CNS inflammation, as well as elevated trafficking of monocytes from the periphery to the brain in both male and female rodents. To date, psychological trauma-induced inflammation is more robust in female vs male rodents. Limitations of preclinical studies include animal models hardly applicable to female rodents, and hormonal changes across estrus phases that may affect immune function. The present review: (1) highlights the key findings from both human and animal studies, (2) provides guidance to address limitations; and (3) discusses the gap of knowledge on the complex intertwined interaction between the brain, neurovascular, and systemic units.
Collapse
Affiliation(s)
- Pascal Levesque
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Université Laval, Québec, QC G1V 0A6, Canada
| | - Charles Desmeules
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC G1V 4G2, Canada; Centre de recherche CERVO, Québec, QC G1E 1T2, Canada; Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Laurent Béchard
- Faculty of Pharmacy, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche CERVO, Québec, QC G1E 1T2, Canada; Institut universitaire en santé mentale de Québec, CIUSSS-CN, Québec, QC G1J 2G3, Canada
| | - Maxime Huot-Lavoie
- Centre de recherche CERVO, Québec, QC G1E 1T2, Canada; Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada; Institut universitaire en santé mentale de Québec, CIUSSS-CN, Québec, QC G1J 2G3, Canada
| | - Marie-France Demers
- Faculty of Pharmacy, Université Laval, Québec, QC G1V 0A6, Canada; Centre de recherche CERVO, Québec, QC G1E 1T2, Canada; Institut universitaire en santé mentale de Québec, CIUSSS-CN, Québec, QC G1J 2G3, Canada
| | - Marc-André Roy
- Centre de recherche CERVO, Québec, QC G1E 1T2, Canada; Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada; Institut universitaire en santé mentale de Québec, CIUSSS-CN, Québec, QC G1J 2G3, Canada
| | - Jessica Deslauriers
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Québec, QC G1V 4G2, Canada; Faculty of Pharmacy, Université Laval, Québec, QC G1V 0A6, Canada.
| |
Collapse
|
27
|
Mancini GF, Meijer OC, Campolongo P. Stress in adolescence as a first hit in stress-related disease development: Timing and context are crucial. Front Neuroendocrinol 2023; 69:101065. [PMID: 37001566 DOI: 10.1016/j.yfrne.2023.101065] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/22/2023] [Accepted: 03/25/2023] [Indexed: 04/06/2023]
Abstract
The two-hit stress model predicts that exposure to stress at two different time-points in life may increase or decrease the risk of developing stress-related disorders later in life. Most studies based on the two-hit stress model have investigated early postnatal stress as the first hit with adult stress as the second hit. Adolescence, however, represents another highly sensitive developmental window during which exposure to stressful events may affect programming outcomes following exposure to stress in adulthood. Here, we discuss the programming effects of different types of stressors (social and nonsocial) occurring during adolescence (first hit) and how such stressors affect the responsiveness toward an additional stressor occurring during adulthood (second hit) in rodents. We then provide a comprehensive overview of the potential mechanisms underlying interindividual and sex differences in the resilience/susceptibility to developing stress-related disorders later in life when stress is experienced in two different life stages.
Collapse
Affiliation(s)
- Giulia F Mancini
- Dept. of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy; Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Onno C Meijer
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Patrizia Campolongo
- Dept. of Physiology and Pharmacology, Sapienza University of Rome, 00185 Rome, Italy; Neuropsychopharmacology Unit, IRCSS Fondazione Santa Lucia, 00143 Rome, Italy.
| |
Collapse
|
28
|
Henschen D, Swift K, Taylor R, Scott E, May M, Ngouajio B, Jenkins K, Johnson Iii F, Jeong I, Silva G, Matson L, Lowery-Gionta E. Development of an Animal Model of Military-Relevant Traumatic Stress. Mil Med 2023; 188:561-571. [PMID: 35266517 DOI: 10.1093/milmed/usac056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/14/2021] [Accepted: 02/23/2022] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Acute Stress Reactions (ASRs) affect a subgroup of individuals who experience traumatic stress. In the context of military operations, such reactions are often termed Combat and Operational Stress Reactions (COSRs). COSRs not only encompass all symptoms of ASRs but also include additional symptoms related to military combat and may develop at a rate higher than the general public experiences ASRs. Despite an obvious need, there are currently no approved pharmacologic treatments or guidelines for ASR and/or COSR. Preclinical rodent stress models and behavioral assessments are used to evaluate pharmacotherapies and elucidate underlying mechanisms. Here, we combined established traumatic stress models to develop a model of traumatic stress relevant to military trauma exposure and measured behavioral outcomes that reflect outcomes observed in ASRs and COSRs. MATERIALS AND METHODS Adult male rats underwent exposure to either a combination of two or three traumatic stress exposures (e.g., predator exposure, underwater trauma (UWT), and/or inescapable shock) or control procedures. Behavioral performance on the open field, elevated plus maze, and acoustic startle response (SR) was then assessed 24- and 48-hours following stress/control procedures. RESULTS In Experiment 1, rats were exposed to a two-stressor model, where predator exposure was coupled with UWT. Minor behavioral deficits were observed in SR for stress-exposed rats as compared to controls. In Experiment 2, inescapable shock was added to predator exposure and UWT. Behavioral performance deficits were observed across all behavioral tests. In Experiment 3, procedures from Experiment 2 were repeated with the only major modification being a shortened predator exposure duration, which resulted in performance deficits in SR only. CONCLUSIONS We found that the three-stressor model of Experiment 2 resulted in the greatest overall behavioral disturbance (both in the number of variables and magnitude of stress effects). Interestingly, behavioral deficits elicited from the shorter predator exposure were distinct from those observed with longer predator exposure times. Together, these results generally suggest that combined preclinical stressors with military-relevant elements result in behavioral performance deficits reflective of post-trauma phenotypes in Soldiers. The present findings support the use of both physical and psychological stressors to model operationally relevant traumatic stress exposure.
Collapse
Affiliation(s)
- Drew Henschen
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Kevin Swift
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Rachel Taylor
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Emily Scott
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Matthew May
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Boris Ngouajio
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Kilana Jenkins
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Fred Johnson Iii
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Isaac Jeong
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Gabriella Silva
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Liana Matson
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Emily Lowery-Gionta
- Behavioral Biology Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| |
Collapse
|
29
|
Ruan L, Guan K, Wang Y, Gu M, Chen Y, Cai L, Ye R, Huang Z, Guo A, Su Z, Li X, Pan J. Baicalein exerts anxiolytic and antinociceptive effects in a mouse model of posttraumatic stress disorder: Involvement of the serotonergic system and spinal delta-opioid receptors. Prog Neuropsychopharmacol Biol Psychiatry 2023; 122:110689. [PMID: 36462602 DOI: 10.1016/j.pnpbp.2022.110689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a serious mental disease featured by a stress dysfunction that occurs after an individual has faced intense mental stress, often accompanied by anxiety and chronic pain. Currently, the mainstream drug for PTSD is serotonin reuptake inhibitors (SSRIs), however, their pain management for patients is limited. Baicalein, a Chinese traditional herbal medicine, has shown promising results in treating anxiety, depression, and pain. In this study, we found that baicalein may alleviate single prolonged stress (SPS)-induced PTSD-like behaviors in mice without altering baseline nociceptive sensitivity or activity. Meanwhile, baicalein increased the noradrenaline (NE) and serotonin (5-HT) content and decreased the ratio of 5-hydroxyindoleacetic acid (5-HIAA)/5-HT by inhibiting the activity of monoamine oxidase A (MAO-A) in SPS-induce mice. The anxiolytic and antinociceptive effects induced by baicalein were totally abolished by 5-HT depleting agents. Moreover, the anxiolytic effects of baicalein could be abolished by the 5-HT1A receptor antagonist WAY-100635, and the analgesic effects could be abolished by delta-opioid receptor antagonists in the spinal. Taken together, our study provides compelling evidence that baicalein reversed anxiety-like behaviors and neuropathic pain in PTSD through serotonergic system and spinal delta-opioid receptors.
Collapse
|
30
|
Tanelian A, Nankova B, Cheriyan A, Arens C, Hu F, Sabban EL. Differences in gut microbiota associated with stress resilience and susceptibility to single prolonged stress in female rodents. Neurobiol Stress 2023; 24:100533. [PMID: 36970450 PMCID: PMC10034505 DOI: 10.1016/j.ynstr.2023.100533] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Exposure to traumatic stress is a major risk factor for the development of neuropsychiatric disorders in a subpopulation of individuals, whereas others remain resilient. The determinants of resilience and susceptibility remain unclear. Here, we aimed to characterize the microbial, immunological, and molecular differences between stress-susceptible and stress-resilient female rats before and after exposure to a traumatic experience. Animals were randomly divided into unstressed controls (n = 10) and experimental groups (n = 16) exposed to Single Prolonged Stress (SPS), an animal model of PTSD. Fourteen days later, all rats underwent a battery of behavioral tests and were sacrificed the following day to collect different organs. Stool samples were collected before and after SPS. Behavioral analyses revealed divergent responses to SPS. The SPS treated animals were further subdivided into SPS-resilient (SPS-R) and SPS-susceptible (SPS-S) subgroups. Comparative analysis of fecal 16S sequencing before and after SPS exposure indicated significant differences in the gut microbial composition, functionality, and metabolites of the SPS-R and SPS-S subgroups. In line with the observed distinct behavioral phenotypes, the SPS-S subgroup displayed higher blood-brain barrier permeability and neuroinflammation relative to the SPS-R and/or controls. These results indicate, for the first time, pre-existing and trauma-induced differences in the gut microbial composition and functionality of female rats that relate to their ability to cope with traumatic stress. Further characterization of these factors will be crucial for understanding susceptibility and fostering resilience, especially in females, who are more likely than males to develop mood disorders.
Collapse
|
31
|
Okdeh N, Mahfouz G, Harb J, Sabatier JM, Roufayel R, Gazo Hanna E, Kovacic H, Fajloun Z. Protective Role and Functional Engineering of Neuropeptides in Depression and Anxiety: An Overview. Bioengineering (Basel) 2023; 10. [PMID: 36829752 DOI: 10.3390/bioengineering10020258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Behavioral disorders, such as anxiety and depression, are prevalent globally and touch children and adults on a regular basis. Therefore, it is critical to comprehend how these disorders are affected. It has been demonstrated that neuropeptides can influence behavior, emotional reactions, and behavioral disorders. This review highlights the majority of the findings demonstrating neuropeptides' behavioral role and functional engineering in depression and anxiety. Gut-brain peptides, hypothalamic releasing hormone peptides, opioid peptides, and pituitary hormone peptides are the four major groups of neuropeptides discussed. Some neuropeptides appear to promote depression and anxiety-like symptoms, whereas others seem to reduce it, all depending on the receptors they are acting on and on the brain region they are localized in. The data supplied here are an excellent starting point for future therapy interventions aimed at treating anxiety and depression.
Collapse
|
32
|
Nahvi RJ, Tanelian A, Nwokafor C, Godino A, Parise E, Estill M, Shen L, Nestler EJ, Sabban EL. Transcriptome profiles associated with resilience and susceptibility to single prolonged stress in the locus coeruleus and nucleus accumbens in male sprague-dawley rats. Behav Brain Res 2023; 439:114162. [PMID: 36257560 PMCID: PMC9812303 DOI: 10.1016/j.bbr.2022.114162] [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: 08/11/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 01/07/2023]
Abstract
Although most people are subjected to traumatic stress at least once in their lifetime, only a subset develop long-lasting, stress-triggered neuropsychiatric disorders, such as PTSD. Here we examined different transcriptome profiles within the locus coeruleus (LC) and nucleus accumbens (NAc) that may contribute to stress susceptibility. Sprague Dawley male rats were exposed to the single prolonged stress (SPS) model for PTSD. Two weeks later they were tested for their anxiety/avoidance behavior on the Elevated Plus Maze (EPM) and were divided into high and low anxiety-like subgroups. RNA (n = 5 per group) was subsequently isolated from LC and NAc and subjected to RNAseq. Transcriptome analysis was used to identify differentially-expressed genes (DEGs) which differed by at least 50 % with significance of 0.01. The LC had more than six times the number of DEGs than the NAc. Only one DEG was regulated similarly in both locations. Many of the DEGs in the LC were associated with morphological changes, including regulation of actin cytoskeleton, growth factor activity, regulation of cell size, brain development and memory, with KEGG pathway of regulation of actin cytoskeleton. The DEGs in the NAc were primarily related to DNA repair and synthesis, and differential regulation of cytokine production. The analysis identified MTPN (myotrophin) and NR3C1 (glucocorticoid receptor) as important upstream regulators of stress susceptibility in the LC. Overall the study provides new insight into molecular pathways in the LC and NAc that are associated with anxiety-like behavior triggered by stress susceptibility or resilience.
Collapse
Affiliation(s)
- Roxanna J Nahvi
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, United States
| | - Arax Tanelian
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, United States
| | - Chiso Nwokafor
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, United States
| | - Arthur Godino
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Eric Parise
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Molly Estill
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Li Shen
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Eric J Nestler
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Esther L Sabban
- Department of Biochemistry and Molecular Biology, New York Medical College, Valhalla, NY 10595, United States.
| |
Collapse
|
33
|
Jiang H, Chen L, Li Y, Gao X, Yang X, Zhao B, Li Y, Wang Y, Yu X, Zhang X, Feng S, Chai Y, Meng H, Ren X, Bao T. Effects of acupuncture on regulating the hippocampal inflammatory response in rats exposed to post-traumatic stress disorder. Neurosci Lett 2023; 796:137056. [PMID: 36621587 DOI: 10.1016/j.neulet.2023.137056] [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: 09/16/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Data from clinical and experimental studies have verified the efficacy and safety of acupuncture in the treatment of post-traumatic stress disorder (PTSD). However, the concrete mechanism has not been well elucidated. The stress-induced activation of inflammatory response is involved in the development and pathogenesis of PTSD. Here, we aimed to investigate the effects of acupuncture on regulating the hippocampal inflammatory response in rats exposed to PTSD. Forty male rats were randomly divided into control, model, acupuncture and sertraline group. Within 1 day after adaptive feeding, all rats were exposed to single prolonged stress (SPS), except for the rats in the control group. Rats in acupuncture group were exposed to acupuncture intervention at the acupoints of Baihui (GV20) and Yintang (GV29), 20 min once per day for 15 days. Rats in sertraline group were exposed to a suspension of sertraline and distilled water (0.2 mg/ml), once per day for 15 days continuously. Body weight and elevated plus maze experiment were detected at different time-points to evaluate the behavioral changes of rats. HE staining method was used to observe the basic pathological morphological changes in hippocampus. Immunofluorescence staining method was used to observe the activation of hippocampal microglia. The content of IL-6 and IL-1β in serum were detected by ELISA method. Compared with the control group, the body weight of rats in model group significantly decreased on 8 days, and the percentage of time in open arms and open arm entries decreased significantly on 15 days after SPS procedures, which indicated that SPS induced PTSD-like behavior in rats. Acupuncture exerted therapeutic effect. Simultaneously, the result of HE staining confirmed that SPS induced hippocampal morphological changes in SPS rats. Notably, acupuncture reversed the reduction and pathological injury to some extent. The results have also shown that acupuncture intervention effectively reversed the activated microglia of the hippocampus in rats. Moreover, the expression of IL-1β in serum was significantly decreased by acupuncture intervention. In summary, the present study demonstrated that the role of acupuncture in eliminating PTSD-like behavior might be connected with reversing the pathological process of the inflammatory response mediated by the activation of microglia induced by SPS.
Collapse
Affiliation(s)
- Huili Jiang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China.
| | - Lu Chen
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Yufei Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xingzhou Gao
- Beijing ChangPing District Hospital, Beijing, China
| | - Xinjing Yang
- Department of Traditional Chinese Medicine, South China Hospital of Shenzhen University, Shenzhen, China
| | - Bingcong Zhao
- Beijing Key Laboratory of Acupuncture Neuromodulation, Acupuncture and Moxibustion Department, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yahuan Li
- Beijing Increase Biomedical Company Limited, Beijing, China
| | - Yu Wang
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xue Yu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | | | - Shixing Feng
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yemao Chai
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Hong Meng
- School of Science, Beijing Technology and Business University, Beijing, China
| | - Xiujun Ren
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Tuya Bao
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China.
| |
Collapse
|
34
|
Dargahi M, Karimi G, Etemad L, Alavi MS, Roohbakhsh A. Fatty acid amide hydrolase inhibitor URB597 suppressed conditioned and sensitized fear responses in a rat model of post-traumatic stress disorder. Learning and Motivation 2023. [DOI: 10.1016/j.lmot.2023.101872] [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: 02/05/2023]
|
35
|
Sanford LD, Wellman LL, Adkins AM, Guo ML, Zhang Y, Ren R, Yang L, Tang X. Modeling integrated stress, sleep, fear and neuroimmune responses: Relevance for understanding trauma and stress-related disorders. Neurobiol Stress 2023; 23:100517. [PMID: 36793998 DOI: 10.1016/j.ynstr.2023.100517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/24/2022] [Revised: 12/30/2022] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Sleep and stress have complex interactions that are implicated in both physical diseases and psychiatric disorders. These interactions can be modulated by learning and memory, and involve additional interactions with the neuroimmune system. In this paper, we propose that stressful challenges induce integrated responses across multiple systems that can vary depending on situational variables in which the initial stress was experienced, and with the ability of the individual to cope with stress- and fear-inducing challenges. Differences in coping may involve differences in resilience and vulnerability and/or whether the stressful context allows adaptive learning and responses. We provide data demonstrating both common (corticosterone, SIH and fear behaviors) and distinguishing (sleep and neuroimmune) responses that are associated with an individual's ability to respond and relative resilience and vulnerability. We discuss neurocircuitry regulating integrated stress, sleep, neuroimmune and fear responses, and show that responses can be modulated at the neural level. Finally, we discuss factors that need to be considered in models of integrated stress responses and their relevance for understanding stress-related disorders in humans.
Collapse
|
36
|
Shafia S, Nikkhah F, Akhoundzadeh K. Effect of combination fluoxetine and exercise on prefrontal BDNF, anxiety-like behavior and fear extinction in a female rat model of post-traumatic stress disorder (PTSD): a comparison with male animals. Behav Brain Funct 2023; 19:1. [PMID: 36647145 PMCID: PMC9843848 DOI: 10.1186/s12993-023-00204-z] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/03/2023] [Indexed: 01/17/2023] Open
Abstract
Despite significant differences between men and women in the symptoms of PTSD and the response to therapeutic interventions, most PTSD studies have been done on male subjects. Continuing our previous study in male rats, this study aimed at better understanding the effect of a combination therapy of exercise with fluoxetine on female PTSD rats. The results were then compared with our past findings in male animals. Female adult Wistar rats subjected to PTSD were treated with moderate treadmill exercise or fluoxetine, or a combination of both. PTSD was induced by the single prolonged stress (SPS) model. Elevated plus-maze (EPM), serum and prefrontal BDNF, and fear extinctions were evaluated. The results showed that exercise plus fluoxetine decreased anxiety-like behavior, improved fear extinction, and increased BDNF changes in female rats. The effects of exercise alone were comparable with those of combination therapy except that combination therapy was more effective on OAT (open arm entry). The majority of results in female rats, except for those of prefrontal BDNF, 4th extinction, and OAT, were similar to those of male rats as shown in our previous study. According to our findings, exercise as a safe and cost-effective intervention can be considered as a complementary efficient option for PTSD treatment in both sexes. To achieve better treatment outcomes in PTSD patient, considering sex differences is recommended.
Collapse
Affiliation(s)
- Sakineh Shafia
- grid.411623.30000 0001 2227 0923Immunogenetics Research Center, Department of Physiology, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farkhonde Nikkhah
- grid.411623.30000 0001 2227 0923Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Kobra Akhoundzadeh
- grid.444830.f0000 0004 0384 871XFaculty of Nursing and Midwifery, Qom University of Medical Sciences, Qom, Iran
| |
Collapse
|
37
|
Torres-Rodriguez O, Ortiz-Nazario E, Rivera-Escobales Y, Velazquez B, Colón M, Porter JT. Sex-dependent effects of microglial reduction on impaired fear extinction induced by single prolonged stress. Front Behav Neurosci 2023; 16:1014767. [PMID: 36699653 PMCID: PMC9868263 DOI: 10.3389/fnbeh.2022.1014767] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023] Open
Abstract
Single prolonged stress (SPS) is a preclinical rodent model for studying post-traumatic stress disorder (PTSD)-like behaviors. Previously we found that increased expression of the microglial marker Iba-1 in the ventral hippocampus after SPS exposure was associated with impaired fear extinction, suggesting that microglial activity contributed to the SPS-induced behavioral changes. To test this, we examined whether reducing microglia with the colony-stimulating factor 1 receptor blocker, PLX3397, in the diet would prevent the SPS-induced extinction impairment. Male rats exposed to SPS showed enhanced fear acquisition and impaired fear extinction memory. Adding PLX3397 to the diet prevented these behavioral changes. In contrast, PLX3397 did not prevent SPS from impairing fear extinction memory in the female rats. Despite the sex-dependent behavioral effects, we found a reduced number and area fraction of Iba-1+ microglia in both male and female rats suggesting that PLX3397 had similar effects on microglia in both sexes. Altogether, these results suggest that microglia contribute to the behavioral changes induced by SPS in male but not female rats.
Collapse
Affiliation(s)
- Orlando Torres-Rodriguez
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico
| | - Emily Ortiz-Nazario
- Department of Biomedical Sciences, Pontifical Catholic University of Puerto Rico, Ponce, Puerto Rico
| | - Yesenia Rivera-Escobales
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico
| | - Bethzaly Velazquez
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico
| | - María Colón
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico
| | - James T. Porter
- Department of Basic Sciences, Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico
| |
Collapse
|
38
|
Konkoly J, Kormos V, Gaszner B, Correia P, Berta G, Biró-Sütő T, Zelena D, Pintér E. Transient receptor potential ankyrin 1 ion channel expressed by the Edinger-Westphal nucleus contributes to stress adaptation in murine model of posttraumatic stress disorder. Front Cell Dev Biol 2022; 10:1059073. [PMID: 36561364 PMCID: PMC9763580 DOI: 10.3389/fcell.2022.1059073] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
The centrally projecting Edinger-Westphal nucleus (EWcp) is involved in stress adaptation. Transient receptor potential ankyrin 1 (TRPA1) mRNA was previously shown to be expressed abundantly in mouse and human EWcp urocortin 1 (UCN1) positive neurons and reacted to chronic stress. Since UCN1 neurons are deeply implicated in stress-related disorders, we hypothesized that TRPA1/UCN1 neurons are also affected in posttraumatic stress disorder (PTSD). We examined male Trpa1 wild type (WT) and gene-deficient (KO) mice in the single prolonged stress (SPS) model of PTSD. Two weeks later the behavioral changes were monitored by forced swim test (FST) and restraint. The Trpa1 and Ucn1 mRNA expression and the UCN1 peptide content were assessed by RNAscope in situ hybridization technique combined with immunofluorescence labeling in the EWcp. SPS-induced immobility was lower in Trpa1 KO compared to WT animals, both in the FST and restraint, corresponding to diminished depression-like behavior. The copy number of Trpa1 mRNA decreased significantly in EWcp of WT animals in response to SPS. Higher basal Ucn1 mRNA expression was observed in the EWcp of KO animals, that was not affected by SPS exposure. EWcp neurons of WT animals responded to SPS with substantially increased amount of UCN1 peptide content compared to control animals, whereas such changes were not observable in KO mice. The decreased Trpa1 mRNA expression in the SPS model of PTSD associated with increased neuronal UCN1 peptide content suggests that this cation channel might be involved in the regulation of stress adaptation and may contribute to the pathomechanism of PTSD.
Collapse
Affiliation(s)
- János Konkoly
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Medical School, Pécs, Hungary
| | - Viktória Kormos
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Medical School, Pécs, Hungary,*Correspondence: Viktória Kormos,
| | - Balázs Gaszner
- Department of Anatomy, University of Pécs, Medical School, Pécs, Hungary
| | - Pedro Correia
- Department of Physiology, University of Pécs, Medical School, Pécs, Hungary
| | - Gergely Berta
- Department of Medical Biology, University of Pécs, Medical School, Pécs, Hungary,Signal Transduction Research Group, János Szentágothai Research Centre, Pécs, Hungary
| | - Tünde Biró-Sütő
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Medical School, Pécs, Hungary
| | - Dóra Zelena
- Department of Physiology, University of Pécs, Medical School, Pécs, Hungary
| | - Erika Pintér
- Department of Pharmacology and Pharmacotherapy, University of Pécs, Medical School, Pécs, Hungary
| |
Collapse
|
39
|
Xu H, Li B, Li L, Fan Z, Gong X, Wu L, Yan C. Environmental enrichment mitigates PTSD-like behaviors in adult male rats exposed to early life stress by regulating histone acetylation in the hippocampus and amygdala. J Psychiatr Res 2022; 155:120-36. [PMID: 36029624 DOI: 10.1016/j.jpsychires.2022.07.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/04/2022] [Accepted: 07/25/2022] [Indexed: 11/20/2022]
Abstract
Early life stress (ELS) can cause long-term changes in gene expression, affect cognition, mood, and behavior, and increase susceptibility to post-traumatic stress disorder (PTSD) in adulthood, in which the histone acetylation plays a crucial role. Studies have found that environmental enrichment (EE) mitigated the unfavorable outcomes of ELS. However, the underlying mechanism of the histone acetylation is not yet completely clear. The purpose of this study was to explore the effect of EE on the histone acetylation after ELS. In this study, using single prolonged stress (SPS) paradigm in early adolescent rats explored the long-term effects of ELS on behavior, the activity of histone acetyltransferases (HATs) and histone deacetylases (HDACs), as well as the acetylation levels of the lysine 9 site of histone H3 (H3K9) and lysine 12 site of histone H4 (H4K12) in the hippocampus and amygdala. Meanwhile, the protective effects of EE intervention were examined. We found that adult male rats exposed to ELS showed behavioral changes, including reduced locomotor activity, increased anxiety-like behaviors, impaired spatial learning and memory, enhanced contextual and cued fear memory, and the HATs/HDACs ratio and acetyl H3K9 (Ac-H3K9) and acetyl H4K12 (Ac-H4K12) were increased in the hippocampus and decreased in the amygdala. Furthermore, EE attenuated the behavioral abnormalities from ELS, possibly through down-regulating the activity of HATs in the hippocampus and up-regulating HDACs activities in the amygdala. These finding suggested that EE could ameliorate ELS-induced PTSD-like behaviors by regulating histone acetylation in the hippocampus and amygdala, reducing the susceptibility to PTSD in adulthood.
Collapse
|
40
|
Fulco BCW, Klann IP, Rodrigues RF, Marzari BN, Nogueira CW. Social-single prolonged stress as an ether-free candidate animal model of post-traumatic stress disorder: Female and male outcomings. J Psychiatr Res 2022; 154:224-232. [PMID: 35961178 DOI: 10.1016/j.jpsychires.2022.07.053] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/26/2022] [Accepted: 07/21/2022] [Indexed: 10/15/2022]
Abstract
BACKGROUND Single Prolonged Stress (SPS) is a valid animal model that reflects the core of post-traumatic stress disorder (PTSD) phenotypes. Although SPS has been a pivotal tool, it can bring ethics approval difficulties due to the use of ether as a stressor. The present study evaluated if changing a chemical (ether) with a social stressor resembles the PTSD hallmark symptoms. METHODS Female and male young adult rats were distributed in Sham and Social-SPS groups. Rats in Social-SPS groups were subjected to stress, whereas those in Sham groups remained undisturbed. One set of animals performed the behavioral tests, elevated plus-maze (EPM) and Y-maze. Plasma corticosterone levels and cortical and hippocampal molecular protein contents were analyzed. Another set of animals performed the dexamethasone suppression test. RESULTS A significant decrease in the percentage of time spent and the number of entries in open arms and an increase in anxiety index in the EPM were observed in rats of the social-SPS groups. In the Social-SPS groups, rats reduced the spontaneous alternations in Y-maze. The Social-SPS exposure enhanced the HPA-axis feedback and increased glucocorticoid receptor contents in the cerebral cortex and hippocampus of rats. A decrease in the content of synaptic integrity-related proteins, synaptophysin, and PSD-95, were found in the cortex and hippocampus of rats subjected to social-SPS. There were no statistical differences between males and females in any parameter analyzed. LIMITATIONS The absence of a task to recap criterion E 'arousal' and predictive validity experiments. CONCLUSIONS This study reveals that social-SPS recapitulated the main clusters required for a candidate animal model of PTSD.
Collapse
Affiliation(s)
- Bruna C W Fulco
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Isabella P Klann
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Renata F Rodrigues
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Bruna N Marzari
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Cristina W Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil.
| |
Collapse
|
41
|
Mohammadi-Farani A, Fakhri S, Jalili C, Samimi Z. Intra-mPFC injection of sodium butyrate promotes BDNF expression and ameliorates extinction recall impairment in an experimental paradigm of post-traumatic stress disorder. Iran J Basic Med Sci 2022; 25:1150-1158. [PMID: 36246060 PMCID: PMC9526891 DOI: 10.22038/ijbms.2022.65000.14312] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 08/06/2022] [Indexed: 11/08/2022]
Abstract
Objectives Therapeutic strategies that facilitate extinction are promising in the treatment of post-traumatic stress disorder (PTSD). Brain-derived neurotrophic factor (BDNF) has a crucial role in neural plasticity, a process needed for the retention of fear extinction. In this study, we investigated the effects of local administration of a histone deacetylase (HDAC) inhibitor, sodium butyrate (NaBu), on BDNF transcription and behavioral markers of extinction in the single prolonged stress (SPS) model of PTSD. Materials and Methods NaBu was infused into the infralimbic (IL) subregion of the medial prefrontal cortex (mPFC) of male rats. The freezing response was recorded as the criterion to assess fear strength on the day of extinction as well as 24 hr later in the retention test. Other behavioral tests were also measured to evaluate the anxiety level, locomotor activity, and working memory on the retention day. HDAC activity and BDNF mRNA expression were evaluated after the behavioral experiments. Results NaBu facilitated the recall of fear extinction in SPS rats (P<0.0001). SPS rats had higher HDAC activity (P<0.0001) and lower BDNF expression (P<0.05) than non-SPS animals. Also, anxiety was higher in the SPS group (P<0.0001), but locomotor activity (P=0.61) and working memory (P=0.36) were not different between SPS and Non-SPS groups. Conclusion Our findings provide evidence that the mechanism of action of NaBu in the improvement of extinction recall is mediated, in part, by enhancing histone acetylation and reviving BDNF expression in IL.
Collapse
Affiliation(s)
- Ahmad Mohammadi-Farani
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran, Department of Physiology and Pharmacology, School of medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran,Corresponding author: Ahmad Mohammadi-Farani. Department of Physiology and Pharmacology, School of medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran. Tel: +98-38-33333057;
| | - Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Samimi
- Department of Immunology, School of medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| |
Collapse
|
42
|
Wanstrath BJ, McLean SA, Zhao Y, Mickelson J, Bauder M, Hausch F, Linnstaedt SD. Duration of Reduction in Enduring Stress-Induced Hyperalgesia Via FKBP51 Inhibition Depends on Timing of Administration Relative to Traumatic Stress Exposure. J Pain 2022; 23:1256-1267. [PMID: 35296422 PMCID: PMC9271550 DOI: 10.1016/j.jpain.2022.02.007] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 01/31/2022] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Chronic pain development is a frequent outcome of severe stressor exposure, with or without tissue injury. Enduring stress-induced hyperalgesia (ESIH) is believed to play a central role, but the precise mechanisms mediating the development of chronic post-traumatic pain, and the time-dependency of these mechanisms, remain poorly understood. Clinical and preclinical data suggest that the inhibition of FK506-binding protein 51 (FKBP51), a key stress system regulator, might prevent ESIH. We evaluated whether peritraumatic inhibition of FKBP51 in an animal model of traumatic stress exposure, the single prolonged stress (SPS) model, reversed ESIH evaluated via daily mechanical von Frey testing. FKBP51 inhibition was achieved using SAFit2, a potent and specific small molecule inhibitor of FKBP51, administered to male and female Sprague-Dawley rats via intraperitoneal injection. To assess timing effects, FKBP51 was administered at different times relative to stress (SPS) exposure. SAFit2 administration immediately after SPS produced a complete reversal in ESIH lasting >7 days. In contrast, SAFit2 administration 72 hours following SPS produced only temporary hyperalgesia reversal, and administration 120h following SPS had no effect. Similarly, animals undergoing SPS together with tissue injury (plantar incision) receiving SAFit2 immediately post-surgery developed acute hyperalgesia but recovered by 4 days and did not develop ESIH. These data suggest that: 1) FKBP51 plays an important, time-dependent role in ESIH pathogenesis, 2) time windows of opportunity may exist to prevent ESIH via FKBP51 inhibition after traumatic stress, with or without tissue injury, and 3) the use of inhibitors of specific pathways may provide new insights into chronic post-traumatic pain development. PERSPECTIVE: The current work adds to a growing body of literature indicating that FKBP51 inhibition is a highly promising potential treatment strategy for reducing hyperalgesia. In the case of post-traumatic chronic pain, we show that such a treatment strategy would be particularly impactful if administered early after traumatic stress exposure.
Collapse
Affiliation(s)
- Britannia J Wanstrath
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina
| | - Samuel A McLean
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina; Department of Emergency Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Ying Zhao
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina
| | - Jacqueline Mickelson
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina
| | - Michael Bauder
- Department of Chemistry and Biochemistry, Technical University Darmstadt, Darmstadt, Germany
| | - Felix Hausch
- Department of Chemistry and Biochemistry, Technical University Darmstadt, Darmstadt, Germany
| | - Sarah D Linnstaedt
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina; Institute for Trauma Recovery, University of North Carolina, Chapel Hill, North Carolina.
| |
Collapse
|
43
|
Bhujel B, Shin H, Choi D, Han I. Mesenchymal Stem Cell-Derived Exosomes and Intervertebral Disc Regeneration: Review. Int J Mol Sci 2022; 23:7306. [PMID: 35806304 PMCID: PMC9267028 DOI: 10.3390/ijms23137306] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 02/07/2023] Open
Abstract
Intervertebral disc degeneration (IVDD) is a common cause of lower back pain (LBP), which burdens individuals and society as a whole. IVDD occurs as a result of aging, mechanical trauma, lifestyle factors, and certain genetic abnormalities, leads to loss of nucleus pulposus, alteration in the composition of the extracellular matrix, excessive oxidative stress, and inflammation in the intervertebral disc. Pharmacological and surgical interventions are considered a boon for the treatment of IVDD, but the effectiveness of those strategies is limited. Mesenchymal stem cells (MSCs) have recently emerged as a possible promising regenerative therapy for IVDD due to their paracrine effect, restoration of the degenerated cells, and capacity for differentiation into disc cells. Recent investigations have shown that the pleiotropic effect of MSCs is not related to differentiation capacity but is mediated by the secretion of soluble paracrine factors. Early studies have demonstrated that MSC-derived exosomes have therapeutic potential for treating IVDD by promoting cell proliferation, tissue regeneration, modulation of the inflammatory response, and reduced apoptosis. This paper highlights the current state of MSC-derived exosomes in the field of treatment of IVDD with further possible future developments, applications, and challenges.
Collapse
|
44
|
Sur B, Lee B. Myricetin Inhibited Fear and Anxiety-Like Behaviors by HPA Axis Regulation and Activation of the BDNF-ERK Signaling Pathway in Posttraumatic Stress Disorder Rats. Evidence-Based Complementary and Alternative Medicine 2022; 2022:1-11. [PMID: 35722162 PMCID: PMC9200513 DOI: 10.1155/2022/8320256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/16/2022] [Accepted: 04/23/2022] [Indexed: 11/17/2022]
Abstract
Posttraumatic stress disorder (PTSD) is a stress-related psychiatric or mental disorder characterized by experiencing a traumatic stress. The cause of such PTSD is dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis and imbalance of monoamines. Myricetin (MYR) is a common natural flavonoid that has various pharmacological activities. We investigated the effects of MYR on fear, depression, and anxiety following monoamine imbalance and hyperactivation of HPA axis in rats exposed to a single prolonged stress (SPS). Male rats were dosed with MYR (10 and 20 mg/kg, i.p.) once daily for 14 days after exposure to SPS. Administration of MYR reduced freezing responses to extinction recall, depression, and anxiety-like behaviors and decreased increase of plasma corticosterone and adrenocorticotropic hormone levels. Also, administration of MYR restored decreased serotonin and increased norepinephrine in the fear circuit regions, medial prefrontal cortex, and hippocampus. It also increased the reduction in the brain-derived neurotrophic factor (BDNF) and tropomyosin-related kinase B mRNA expression and the ratio of p-ERK/extracellular signal-regulated kinase (ERK) in the hippocampus. Thus, MYR exerted antidepressant and anxiolytic effects by regulation of HPA axis and activation of the BDNF-ERK signaling pathway. Finally, we suggest that MYR could be a useful therapeutic agent to prevent traumatic stress such as PTSD.
Collapse
|
45
|
Du J, Diao H, Zhou X, Zhang C, Chen Y, Gao Y, Wang Y. Post-traumatic stress disorder: a psychiatric disorder requiring urgent attention. Med Rev (Berl) 2022; 2:219-243. [PMID: 37724188 PMCID: PMC10388753 DOI: 10.1515/mr-2022-0012] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/21/2022] [Indexed: 09/20/2023]
Abstract
Post-traumatic stress disorder (PTSD) is a severe and heterogenous psychiatric disorder that was first defined as a mental disorder in 1980. Currently, the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) and the International Classification of Diseases 11th Edition (ICD-11) offer the most widely accepted diagnostic guidelines for PTSD. In both diagnostic categories, experiencing a traumatic event (TE) is the necessary criterion for diagnosing PTSD. The TEs described in the DSM-5 include actual or threatened death, serious injury, sexual violence, and other extreme stressors, either directly or indirectly. More than 70% of adults worldwide are exposed to a TE at least once in their lifetime, and approximately 10% of individuals develop PTSD after experiencing a TE. The important features of PTSD are intrusion or re-experiencing fear memories, pervasive sense of threat, active avoidance, hyperarousal symptoms, and negative alterations of cognition and mood. Individuals with PTSD have high comorbidities with other psychiatric diseases, including major depressive disorder, generalized anxiety disorder, and substance use disorder. Multiple lines of evidence suggest that the pathophysiology of PTSD is complex, involving abnormal neural circuits, molecular mechanisms, and genetic mechanisms. A combination of both psychotherapy and pharmacotherapy is used to treat PTSD, but has limited efficacy in patients with refractory PTSD. Because of the high prevalence, heavy burden, and limited treatments, PTSD is a psychiatric disorder that requires urgent attention. In this review, we summarize and discuss the diagnosis, prevalence, TEs, pathophysiology, and treatments of PTSD and draw attention to its prevention.
Collapse
Affiliation(s)
- Jun Du
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Huapeng Diao
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Xiaojuan Zhou
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Chunkui Zhang
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yifei Chen
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yan Gao
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yizheng Wang
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing, China
| |
Collapse
|
46
|
Lin CC, Cheng PY, Hsiao M, Liu YP. Effects of RU486 in Treatment of Traumatic Stress-Induced Glucocorticoid Dysregulation and Fear-Related Abnormalities: Early versus Late Intervention. Int J Mol Sci 2022; 23:ijms23105494. [PMID: 35628305 PMCID: PMC9141845 DOI: 10.3390/ijms23105494] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/08/2022] [Accepted: 05/08/2022] [Indexed: 02/06/2023] Open
Abstract
Central glucocorticoid receptor (GR) activity is enhanced following traumatic events, playing a key role in the stress-related cognitive abnormalities of posttraumatic stress disorder (PTSD). GR antagonists are expected to have potential as pharmacological agents to treat PTSD-related symptoms such as anxiety and fear memory disruption. However, an incubation period is usually required and stress-induced abnormalities do not develop immediately following the trauma; thus, the optimal intervention timing should be considered. Single prolonged stress (SPS) was employed as a rodent PTSD model to examine the effects of early or late (1–7 versus 8–14 days after the SPS) sub-chronic RU486 (a GR antagonist) administration. Behaviorally, fear conditioning and anxiety behavior were assessed using the fear-conditioning test and elevated T-maze (ETM), respectively. Neurochemically, the expressions of GR, FK506-binding proteins 4 and 5 (FKBP4 and FKBP5), and early growth response-1 (Egr-1) were assessed in the hippocampus, medial prefrontal cortex (mPFC), amygdala, and hypothalamus, together with the level of plasma corticosterone. Early RU486 administration could inhibit SPS-induced behavioral abnormalities and glucocorticoid system dysregulation by reversing the SPS-induced fear extinction deficit, and preventing SPS-reduced plasma corticosterone levels and SPS-induced Egr-1 overexpression in the hippocampus. Early RU486 administration following SPS also increased the FKBP5 level in the hippocampus and hypothalamus. Finally, both early and late RU486 administration inhibited the elevated hippocampal FKBP4 level and hypothalamus GR level in the SPS rats. Early intervention with a GR antagonist aids in the correction of traumatic stress-induced fear and anxiety dysregulation.
Collapse
Affiliation(s)
- Chen-Cheng Lin
- Laboratory of Cognitive Neuroscience, Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei 11490, Taiwan;
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan;
| | - Pao-Yun Cheng
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei 11490, Taiwan;
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan;
| | - Yia-Ping Liu
- Laboratory of Cognitive Neuroscience, Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei 11490, Taiwan;
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei 11490, Taiwan;
- Department of Psychiatry, Cheng Hsin General Hospital, Taipei 11220, Taiwan
- Department of Psychiatry, Tri-Service General Hospital, Taipei 11490, Taiwan
- Correspondence:
| |
Collapse
|
47
|
Tanelian A, Nankova B, Miari M, Nahvi RJ, Sabban EL. Resilience or susceptibility to traumatic stress: Potential influence of the microbiome. Neurobiol Stress 2022; 19:100461. [PMID: 35789769 PMCID: PMC9250071 DOI: 10.1016/j.ynstr.2022.100461] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/13/2022] [Accepted: 05/15/2022] [Indexed: 11/24/2022] Open
Abstract
Exposure to traumatic stress is a major risk factor for development of neuropsychiatric disorders in a sub-population of individuals, while others remain resilient. The mechanisms and contributing factors differentiating between these phenotypes are still unclear. We hypothesize that inter-individual differences in the microbial composition and function contribute to host resilience or susceptibility to stress-induced psychopathologies. The current study aimed to characterize gut microbial community before and after exposure to traumatic stress in an animal model of PTSD. Sprague-Dawley male rats were randomly divided into unstressed controls and experimental group subjected to Single Prolonged Stress (SPS). After 14 days, behavioral analyses were performed using Open Field, Social Interaction and Elevated Plus Maze tests. Based on the anxiety measures, the SPS group was further subdivided into resilient (SPS-R) and susceptible (SPS–S) cohorts. The animals were sacrificed after the last behavioral test and cecum, colon, hippocampus, and medial prefrontal cortex were dissected. Prior to SPS and immediately after Open Field test, fecal samples were collected from each rat for 16S V3–V4 ribosomal DNA sequencing, whereas urine samples were collected before SPS, 90 min into immobilization and on the day of sacrifice to measure epinephrine and norepinephrine levels. Analyses of the fecal microbiota revealed significant differences in microbial communities and in their predictive functionality among the groups before and after SPS stressors. Before SPS, the SPS-S subgroup harbored microbiota with an overall pro-inflammatory phenotype, whereas SPS-R subgroup had microbiota with an overall anti-inflammatory phenotype, with predictive functional pathways enriched in carbohydrate and lipid metabolism and decreased in amino acid metabolism and neurodegenerative diseases. After SPS, the gut microbial communities and their predictive functionality shifted especially in SPS cohorts, with volatility at the genus level correlating inversely with Anxiety Index. In line with the alterations seen in the gut microbiota, the levels of cecal short chain fatty acids were also altered, with SPS-S subgroup having significantly lower levels of acetate, valerate and caproate. The levels of acetate inversely correlated with Anxiety Index. Interestingly, urinary epinephrine and norepinephrine levels were also higher in the SPS-S subgroup at baseline and during stress, indicative of an altered sympathoadrenal stress axis. Finally, shorter colon (marker of intestinal inflammation) and a lower claudin-5 protein expression (marker for increased blood brain barrier permeability) were observed in the SPS-S subgroup. Taken together, our results suggest microbiota is a potential factor in predisposing subjects either to stress susceptibility or resilience. Moreover, SPS triggered significant shifts in the gut microbiota, their metabolites and brain permeability. These findings could lead to new therapeutic directions for PTSD possibly through the controlled manipulation of gut microbiota. It may enable early identification of individuals more likely to develop prolonged anxiogenic symptoms following traumatic stress. Preexisting individual differences in microbiome relate to host's stress response. Shift in the microbial composition differs in SPS-R and SPS-S subgroups after SPS. Cecal levels of acetate in SPS subgroups correlate inversely with anxiety index. Basal and stress-induced urinary catecholamine levels are higher in SPS-S subgroup. SPS-S subgroup has shorter colon, less cecal SCFA and lower brain TJ protein.
Collapse
|
48
|
Mirjalili R, Shokouh E, Dehkordi NS, Afsari R, Shafia S, Rashidy-pour A. Prior short-term exercise prevents behavioral and biochemical abnormalities induced by single prolonged stress in a rat model of posttraumatic stress disorder. Behav Brain Res 2022. [DOI: 10.1016/j.bbr.2022.113864] [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] [Received: 10/30/2021] [Revised: 03/27/2022] [Accepted: 03/27/2022] [Indexed: 11/21/2022]
|
49
|
Al Yacoub ON, Awwad HO, Zhang Y, Standifer KM. Therapeutic potential of nociceptin/orphanin FQ peptide (NOP) receptor modulators for treatment of traumatic brain injury, traumatic stress, and their co-morbidities. Pharmacol Ther 2022; 231:107982. [PMID: 34480968 DOI: 10.1016/j.pharmthera.2021.107982] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 06/01/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 12/22/2022]
Abstract
The nociceptin/orphanin FQ (N/OFQ) peptide (NOP) receptor is a member of the opioid receptor superfamily with N/OFQ as its endogenous agonist. Wide expression of the NOP receptor and N/OFQ, both centrally and peripherally, and their ability to modulate several biological functions has led to development of NOP receptor modulators by pharmaceutical companies as therapeutics, based upon their efficacy in preclinical models of pain, anxiety, depression, Parkinson's disease, and substance abuse. Both posttraumatic stress disorder (PTSD) and traumatic brain injury (TBI) are debilitating conditions that significantly affect the quality of life of millions of people around the world. PTSD is often a consequence of TBI, and, especially for those deployed to, working and/or living in a war zone or are first responders, they are comorbid. PTSD and TBI share common symptoms, and negatively influence outcomes as comorbidities of the other. Unfortunately, a lack of effective therapies or therapeutic agents limits the long term quality of life for either TBI or PTSD patients. Ours, and other groups, demonstrated that PTSD and TBI preclinical models elicit changes in the N/OFQ-NOP receptor system, and that administration of NOP receptor ligands alleviated some of the neurobiological and behavioral changes induced by brain injury and/or traumatic stress exposure. Here we review the past and most recent progress on understanding the role of the N/OFQ-NOP receptor system in PTSD and TBI neurological and behavioral sequelae. There is still more to understand about this neuropeptide system in both PTSD and TBI, but current findings warrant further examination of the potential utility of NOP modulators as therapeutics for these disorders and their co-morbidities. We advocate the development of standards for common data elements (CDE) reporting for preclinical PTSD studies, similar to current preclinical TBI CDEs. That would provide for more standardized data collection and reporting to improve reproducibility, interpretation and data sharing across studies.
Collapse
Affiliation(s)
- Omar N Al Yacoub
- Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, OUHSC, Oklahoma City, OK 73117, United States of America
| | - Hibah O Awwad
- Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, OUHSC, Oklahoma City, OK 73117, United States of America
| | - Yong Zhang
- Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, OUHSC, Oklahoma City, OK 73117, United States of America
| | - Kelly M Standifer
- Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, OUHSC, Oklahoma City, OK 73117, United States of America.
| |
Collapse
|
50
|
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] [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: 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.
Collapse
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
| |
Collapse
|