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Ferreira NB, Dias CT, Chaaban AFA, Beserra-Filho JIA, Ribeiro AM, Lambertucci RH, Mendes-da-Silva C. Improving dietary patterns in obese mice: Effects on body weight, adiposity, anhedonia-like behavior, pro-BDNF expression and 5-HT system. Brain Res 2024; 1838:148996. [PMID: 38744387 DOI: 10.1016/j.brainres.2024.148996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/09/2024] [Accepted: 05/11/2024] [Indexed: 05/16/2024]
Abstract
INTRODUCTION The excessive fat accumulation in obesity, resulting from an unbalanced diet, can lead to metabolic and neurological disorders and increase the risk of developing anxiety and depression. AIM Assess the impact of dietary intervention (DI) on the serotonergic system, brain-derived neurotrophic factor (BDNF) expression and behaviors of obese mice. METHODS Male C57BL/6 mice, 5 weeks old, received a high-fat diet (HFD) for 10 weeks for the induction of obesity. After this period, for 8 weeks, half of these animals received a control diet (CD), group obese (OB) + control diet (OB + CD, n = 10), and another half continued being fed HFD, group obese + HFD (OB + HFD, n = 10). At the end of the eighth week of intervention, behavioral tests were performed (sucrose preference test, open field, novel object recognition, elevated plus maze and tail suspension). Body weight and food intake were assessed weekly. Visceral adiposity, the hippocampal and hypothalamic protein expression of BDNF, 5-HT1A (5-HT1A serotonin receptor) and TPH2 (key enzyme in serotonin synthesis), were evaluated after euthanasia. RESULTS The dietary intervention involved changing from a HFD to a CD over an 8-week period, effectively reduced body weight gain, adiposity, and anhedonia-like behavior. In the OB + HFD group, we saw a lower sucrose preference and shorter traveled distance in the open field, along with increased pro-BDNF expression in the hypothalamus compared to the OB + CD mice. However, the levels of TPH2 and 5-HT1A remained unchanged. CONCLUSION The HFD model induced both obesity and anhedonia, but the dietary intervention successfully improved these conditions.
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Affiliation(s)
- Nicoly Bédia Ferreira
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Clarissa Tavares Dias
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Ana Flávia Alves Chaaban
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - José Ivo Araújo Beserra-Filho
- Laboratory of Neuroscience and Bioprospecting of Natural Products, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Alessandra Mussi Ribeiro
- Laboratory of Neuroscience and Bioprospecting of Natural Products, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Rafael Herling Lambertucci
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil
| | - Cristiano Mendes-da-Silva
- Laboratory of Neuroscience and Nutrition, Department of Biosciences, Federal University of Sao Paulo/UNIFESP, Santos, SP, Brazil.
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Wei SQ, Wei JX, Zhao S, Cao DY, Liang L. Downregulation of lysine-specific histone demethylase 1A (KDM1A/LSD1) in medial prefrontal cortex facilitates chronic stress-induced pain and emotional dysfunction in female mice. Neuropharmacology 2024; 254:109992. [PMID: 38723742 DOI: 10.1016/j.neuropharm.2024.109992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
Chronic primary pain, characterized by overlapping symptoms of chronic pain, anxiety, and depression, is strongly associated with stress and is particularly prevalent among females. Recent research has convincingly linked epigenetic modifications in the medial prefrontal cortex (mPFC) to chronic pain and chronic stress. However, our understanding of the role of histone demethylation in the mPFC in chronic stress-induced pain remains limited. In this study, we investigated the function of lysine-specific histone demethylase 1A (KDM1A/LSD1) in the context of chronic overlapping pain comorbid with anxiety and depression in female mice. We employed a chronic variable stress model to induce pain hypersensitivity in the face and hindpaws, as well as anxiety-like and depression-like behaviors, in female mice. Our findings revealed that chronic stress led to a downregulation of KDM1A mRNA and protein expression in the mPFC. Notably, overexpressing KDM1A in the mPFC alleviated the pain hypersensitivity, anxiety-like behaviors, and depression-like behaviors in female mice, without affecting basal pain responses or inducing emotional distress. Conversely, conditional knockout of KDM1A in the mPFC exacerbated pain sensitivity and emotional distress specifically in females. In summary, this study highlights the crucial role of KDM1A in the mPFC in modulating chronic stress-induced overlapping pain, anxiety, and depression in females. Our findings suggest that KDM1A may serve as a potential therapeutic target for treating chronic stress-related overlap pain and associated negative emotional disorders.
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Affiliation(s)
- Si-Qi Wei
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710061, PR China
| | - Jian-Xiong Wei
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China
| | - Shijie Zhao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710061, PR China
| | - Dong-Yuan Cao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710061, PR China.
| | - Lingli Liang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China; Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, PR China.
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3
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Kemp ET, Zandberg L, Harvey BH, Smuts CM, Baumgartner J. Iron and n-3 fatty acid depletion, alone and in combination, during early development provoke neurochemical changes, anhedonia, anxiety and social dysfunction in rats. Nutr Neurosci 2024; 27:698-714. [PMID: 37585720 DOI: 10.1080/1028415x.2023.2245615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Objectives: Both iron and omega-3 (n-3) fatty acids (FA) play important roles in the development and functioning of the brain. We investigated the effects of n-3 FA and iron deficiencies, alone and in combination, during early development on behaviour and brain monoamines in rats. Methods: Using a 2-factorial design, female Wistar rats were randomly allocated to one of four diet groups: Control, n-3 FA deficient (n-3 FAD), iron deficient (ID), or n-3 FAD + ID. Females received these diets throughout mating, pregnancy and lactation. Offspring (n = 24/group; male:female = 1:1) continued on the same diet until post-natal day 42-45, and underwent a sucrose preference test (SPT), novel object recognition test, elevated plus maze (EPM) and social interaction test (SIT). Results: ID offspring consumed less sucrose in the SPT and spent more time in closed arms and less time in open arms of the EPM than non-ID offspring. In female offspring only, ID and n-3 FAD reduced time approaching and together in the SIT, with an additive effect of ID and n-3 FAD for even less time approaching and spent together in the n-3 FAD + ID group compared to controls. ID offspring had higher striatal dopamine and norepinephrine and lower frontal cortex dopamine concentrations. N-3 FAD and ID affected frontal cortex serotonin concentrations in a sex-specific manner. Conclusions: Our results suggest that ID and n-3 FAD during early development provoke anhedonia, anxiety and social dysfunction in rats, with potential additive and attenuating effects when combined. These effects may in part be attributed to disturbances in brain neurochemistry and may be sex-specific.
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Affiliation(s)
- Erna T Kemp
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Lizelle Zandberg
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Brian H Harvey
- School of Pharmacy and Center of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
- South African Medical Research Council Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
- The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Australia
| | - Cornelius M Smuts
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Jeannine Baumgartner
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
- Department of Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
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Zoicas I, Licht C, Mühle C, Kornhuber J. Repetitive transcranial magnetic stimulation (rTMS) for depressive-like symptoms in rodent animal models. Neurosci Biobehav Rev 2024; 162:105726. [PMID: 38762128 DOI: 10.1016/j.neubiorev.2024.105726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Repetitive transcranial magnetic stimulation (rTMS) emerged as a non-invasive brain stimulation technique in the treatment of psychiatric disorders. Both preclinical and clinical studies as well as systematic reviews provide a heterogeneous picture, particularly concerning the stimulation protocols used in rTMS. Here, we present a review of rTMS effects in rodent models of depressive-like symptoms with the aim to identify the most relevant factors that lead to an increased therapeutic success. The influence of different factors, such as the stimulation parameters (stimulus frequency and intensity, duration of stimulation, shape and positioning of the coil), symptom severity and individual characteristics (age, species and genetic background of the rodents), on the therapeutic success are discussed. Accumulating evidence indicates that rTMS ameliorates a multitude of depressive-like symptoms in rodent models, most effectively at high stimulation frequencies (≥5 Hz) especially in adult rodents with a pronounced pathological phenotype. The therapeutic success of rTMS might be increased in the future by considering these factors and using more standardized stimulation protocols.
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Affiliation(s)
- Iulia Zoicas
- Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Psychiatry and Psychotherapy, Schwabachanlage 6, Erlangen 91054, Germany.
| | - Christiane Licht
- Paracelsus Medical University, Department of Psychiatry and Psychotherapy, Prof.-Ernst-Nathan-Str. 1, Nürnberg 90419, Germany
| | - Christiane Mühle
- Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Psychiatry and Psychotherapy, Schwabachanlage 6, Erlangen 91054, Germany
| | - Johannes Kornhuber
- Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Psychiatry and Psychotherapy, Schwabachanlage 6, Erlangen 91054, Germany
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Sallie FN, Pienaar L, Lubbe A, Xhakaza S, Manne SR, de la Torre BG, Albericio F, Mu Daniels W, Me Millen A, Baijnath S. Neurobehavioral and molecular changes in a rodent model of ACTH-induced HPA axis dysfunction. Brain Res 2024; 1834:148913. [PMID: 38580046 DOI: 10.1016/j.brainres.2024.148913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Hypothalamic-pituitary-adrenal (HPA) axis dysregulation is linked to the pathophysiology of depression. Although exogenous adrenocorticotropic hormone (ACTH) is associated with a depressive-like phenotype in rodents, comprehensive neurobehavioral and mechanistic evidence to support these findings are limited. Sprague-Dawley rats (male, n = 30; female, n = 10) were randomly assigned to the control (male, n = 10) or ACTH (male, n = 20; female n = 10) groups that received saline (0.1 ml, sc.) or ACTH (100 μg/day, sc.), respectively, for two weeks. Thereafter, rats in the ACTH group were subdivided to receive ACTH plus saline (ACTH_S; male, n = 10; female, n = 5; 0.2 ml, ip.) or ACTH plus imipramine (ACTH_I; male, n = 10; female, n = 5;10 mg/kg, ip.) for a further four weeks. Neurobehavioral changes were assessed using the forced swim test (FST), the sucrose preference test (SPT), and the open field test (OFT). Following termination, the brain regional mRNA expression of BDNF and CREB was determined using RT-PCR. After two-weeks, ACTH administration significantly increased immobility in the FST (p = 0.03), decreased interaction with the center of the OFT (p < 0.01), and increased sucrose consumption (p = 0.03) in male, but not female rats. ACTH administration significantly increased the expression of BDNF in the hippocampus and CREB in all brain regions in males (p < 0.05), but not in female rats. Imipramine treatment did not ameliorate these ACTH-induced neurobehavioral or molecular changes. In conclusion, ACTH administration resulted in a sex-specific onset of depressive-like symptoms and changes in brain regional expression of neurotrophic factors. These results suggest sex-specific mechanisms underlying the development of depressive-like behavior in a model of ACTH-induced HPA axis dysregulation.
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Affiliation(s)
- Farhanah N Sallie
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa
| | - Leandrie Pienaar
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa
| | - Andrea Lubbe
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa
| | - Sanelisiwe Xhakaza
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa
| | - Srinivasa R Manne
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Beatriz G de la Torre
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - William Mu Daniels
- School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa
| | - Aletta Me Millen
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa.
| | - Sooraj Baijnath
- Wits Integrated Molecular Physiology Research Initiative, Wits Health Consortium (PTY) Ltd, School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa; School of Physiology, Faculty of Health Sciences, University of The Witwatersrand, Johannesburg, South Africa.
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6
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Xu M, Fan H. Investigating the synergistic effects of amitriptyline and H. pylori eradication on depressive-like behaviors and inflammatory cytokines in mice. Physiol Behav 2024; 281:114552. [PMID: 38614419 DOI: 10.1016/j.physbeh.2024.114552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/26/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND Recent research has highlighted the potential role of Helicobacter pylori in the pathogenesis of psychiatric disorders. This study aimed to evaluate the potential synergistic effects of an antidepressant drug and H. pylori eradication therapy in a mouse model. METHODS Male C57BL/6 mice were divided into four groups: control, H. pylori infection, antidepressant treatment, and combined treatment. H. pylori infection was induced by oral gavage with a clinically relevant strain, and the antidepressant drug was administered via intraperitoneal injections. Behavioral tests including the forced swim test, sucrose preference test, and open field test were conducted to assess depressive-like behaviors and locomotor activity. RESULTS The study demonstrated that H. pylori infection induced depressive-like behaviors in mice, as evidenced by increased immobility time in the forced swim test and reduced sucrose preference. Antidepressant treatment alone partially ameliorated these behavioral changes. Strikingly, the combined treatment of the antidepressant drug and H. pylori eradication therapy led to a significantly greater reduction in depressive-like behaviors compared to either treatment alone. Furthermore, the combined treatment group exhibited increased locomotor activity in the open field test, suggesting a potential improvement in overall psychomotor functioning. ELISA assays revealed alterations in inflammatory cytokines in the H. pylori-infected mice, which were partially attenuated by the combined treatment. CONCLUSION The study provides novel evidence for the potential synergistic effects of an antidepressant drug and H. pylori eradication therapy in alleviating depressive-like behaviors in a mouse model.
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Affiliation(s)
- Miao Xu
- Department of Psychiatry, Brain Hospital of Hunan Province (The Second People's Hospital of Hunan Province), No. 427, Section 3, Furong Middle Road, Changsha, 410007, China
| | - Hua Fan
- Department of Psychiatry, Brain Hospital of Hunan Province (The Second People's Hospital of Hunan Province), No. 427, Section 3, Furong Middle Road, Changsha, 410007, China.
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Lonstein JS, Meinhardt TA, Pavlidi P, Kokras N, Dalla C, Charlier TD, Pawluski JL. Maternal probiotic Lactocaseibacillus rhamnosus HN001 treatment alters postpartum anxiety, cortical monoamines, and the gut microbiome. Psychoneuroendocrinology 2024; 165:107033. [PMID: 38569396 DOI: 10.1016/j.psyneuen.2024.107033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/02/2024] [Accepted: 03/17/2024] [Indexed: 04/05/2024]
Abstract
Peripartum mood and anxiety disorders (PMADs) affect 15-20% of peripartum women and are well known to disrupt infant caregiving. A recent study in humans reported that anxiety and depressive symptoms were alleviated by peripartum treatment with the probiotic, Lactocaseibacillus rhamnosus HN001. The current study determined the effects of chronic Lactocaseibacillus rhamnosus HN001 (HN001) treatment on postpartum affective and caregiving behaviors in a laboratory rodent model. Female rats were given probiotic overnight in their drinking water, or untreated water, from the first day of pregnancy through postpartum day 10. To determine whether the HN001 effects were influenced by a background of stress, half the females underwent chronic variable pregnancy stress and the other half remained undisturbed. The results revealed that, even without pregnancy stress, HN001 reduced postpartum anxiety-related behavior, increased variability in behavioral fragmentation when dams interacted with pups, increased time away from pups, and decreased prefrontal cortex norepinephrine (NE), dopamine (DA) and serotonin (5-HT). Probiotic plus stress consistently reduced the latency to float in the forced swim test, increased DA and 5-HT turnovers in the prefrontal cortex, increased hippocampal NE, and reduced hypothalamic DA. Fecal microbe alpha and beta diversities were lower postpartum than prepartum, which was prevented by the probiotic treatment and/or stress. Across the entire sample lower postpartum anxiety behavior was associated with lower fecal Bacteroides dorei. This study reveals novel information about how L. rhamnosus HN001 influences postpartum behavior and microbiota-gut-brain physiology in female laboratory rats, with implications for probiotic supplement use by pregnant and postpartum women.
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Affiliation(s)
- Joseph S Lonstein
- Behavioral Neuroscience Program, Department of Psychology, Michigan State University, East Lansing, MI 48824, USA.
| | - Taryn A Meinhardt
- Behavioral Neuroscience Program, Department of Psychology, Michigan State University, East Lansing, MI 48824, USA
| | - Pavlina Pavlidi
- Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Athens, Goudi 11527, Greece
| | - Nikos Kokras
- Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, Athens, Goudi 11527, Greece; First Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Greece
| | - Christina Dalla
- First Department of Psychiatry, Medical School, National and Kapodistrian University of Athens, Greece
| | - Thierry D Charlier
- Universite de Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes F-35000, France
| | - Jodi L Pawluski
- Universite de Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes F-35000, France
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Wang B, Tian L, Wu M, Zhang D, Yan X, Bai M, Li Y, Su P, Xu E. Modified Danzhi XiaoyaoSan inhibits neuroinflammation via regulating TRIM31/NLRP3 inflammasome in the treatment of CUMS depression. Exp Gerontol 2024; 192:112451. [PMID: 38729250 DOI: 10.1016/j.exger.2024.112451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/28/2024] [Accepted: 05/05/2024] [Indexed: 05/12/2024]
Abstract
The NLRP3 inflammasome is critically involved in the development of depression. The E3 ubiquitin ligase TRIM31 negatively regulates this process by promoting the degradation of NLRP3 through the ubiquitin-proteasome pathway. Modified Danzhi Xiaoyaosan (MDZXYS) has shown good therapeutic effect in both preclinical and clinical depression treatments, yet the underlying mechanisms of its antidepressant effects are not fully understood. In the present study, we aimed to explore the antidepressant mechanisms of MDZXYS, focusing on NLRP3 activation and ubiquitin-mediated degradation. We employed rats with depression induced by chronic unpredictable mild stress (CUMS) and conducted various behavioral tests, including the sucrose preference, forced swimming, and open field tests. Neuronal damage in CUMS-treated rats was assessed using Nissl staining. We measured proinflammatory cytokine levels using ELISA kits and analyzed NLRP3/TRIM31 protein expression via Western blotting and immunofluorescence staining. Our results disclosed that MDZXYS reversed CUMS-induced depression-like behaviors in rats, reduced proinflammatory cytokine levels (IL-1β), and ameliorated neuronal damage in the prefrontal cortex. Additionally, CUMS activated the NLRP3 inflammasome in the prefrontal cortex and upregulated the protein expression of TRIM31. After MDZXYS administration, the expression of NLRP3 inflammasome-associated proteins was reduced, while the expression level of TRIM31 was further increased. Through co-localized immunofluorescence staining, we observed a significant elevation in the co-localization expression of NLRP3 and TRIM31 in the prefrontal cortex of the MDZXYS group. These findings suggest that inhibiting NLRP3 inflammasome-mediated neuroinflammation by modulating the TRIM31signaling pathway may underlie the antidepressant effects of MDZXYS, and further support targeting NLRP3 as a novel approach for the prevention and treatment of depression.
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Affiliation(s)
- Baoying Wang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Lei Tian
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Mengdi Wu
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Duo Zhang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Xiangli Yan
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Ming Bai
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Yucheng Li
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China
| | - Pan Su
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
| | - Erping Xu
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, PR China; College of Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, PR China.
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Meng Y, Xiao L, Liu R, Du J, Liu N, Yu J, Li Y, Lu G. Antidepressant effect and mechanism of TMP269 on stress-induced depressive-like behavior in mice. Biochem Pharmacol 2024; 225:116320. [PMID: 38801927 DOI: 10.1016/j.bcp.2024.116320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
TMP269, a class IIA histone deacetylase inhibitor with selectivity, that has a protective effect on the central nervous system, yet its specific mechanism of action remains ambiguous. Although major depressive disorder (MDD) is highly prevalent, its pathophysiology is poorly understood. Recent evidence suggests that histone deacetylase 5 plays a key role in the pathological process of depression and the fact that preclinical studies have shown HDAC5 to be a potential antidepressant target, the search for natural drugs or small molecule compounds that can target HDAC5 may be a potential therapeutic strategy for the treatment of depression. In addition, we examined the role of the Brain-derived neurotrophic factor (BDNF), an important neurotrophic factor for neuronal survival and growth, as a potential downstream target of HDAC5. We found downward revision of HDAC5 levels in the hippocampus ameliorated depressive-like behavior in LH (Learned helplessness) mice. Furthermore, injection of HDAC5 overexpressing adenoviral vectors in the hippocampal dentate gyrus of wild-type mice produced a somewhat depressive-like phenotype. Pharmacological, immunofluorescence and biochemical experiments showed that TMP269 could produce antidepressant effects by inhibiting mouse hippocampal HDAC5 and thus modulating its downstream BDNF. Over all, TMP269 mitigated LH-induced depressive-like behaviors and abnormalities in synapse formation and neurogenesis within the hippocampus. These findings suggest potential beneficial effects of TMP269 on depression.
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Affiliation(s)
- Yuan Meng
- Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan 750000, China; Department of Pharmacology, College of Pharmacy, Wuhan University, Wuhan 430072, China; Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan 750000, China
| | - Lifei Xiao
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Ruyun Liu
- Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan 750000, China; Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan 750000, China
| | - Juan Du
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan 750000, China
| | - Ning Liu
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan 750000, China
| | - Jianqiang Yu
- Department of Pharmacology, College of Pharmacy, Ningxia Medical University, Yinchuan 750000, China
| | - Yanqin Li
- Department of Pharmacology, College of Pharmacy, Wuhan University, Wuhan 430072, China.
| | - Guangyuan Lu
- Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan 750000, China; Key Laboratory of Drug Creation and Generic Drug Research, Ningxia Medical University, Yinchuan 750000, China.
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10
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Zhu HM, Wang B, Wang T, Shao J, Chen HR, Zhang C, Xu LH, Li JJ, Wang M, Xu DX, Meng XH. Prenatal exposure to fenvalerate causes depressive-like behavior in adulthood by inhibiting brain-derived 5-HT synthesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124137. [PMID: 38740245 DOI: 10.1016/j.envpol.2024.124137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/23/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
The developmental toxicity of fenvalerate, a representative pyrethroid insecticide, is well documented. The present study aimed to explore whether prenatal exposure to fenvalerate causes depression-like behavior in adulthood. Pregnant mice were orally administrated with either corn oil or fenvalerate (2 or 20 mg/kg) during pregnancy. Depressive-like behaviors were assessed by tail suspension test (TST), forced swim test (FST) and sucrose preference test (SPT). Immobility times in TST and FST were increased in offspring whose mothers were exposed to fenvalerate throughout pregnancy. By contrast, sugar preference index, as determined by SPT, was decreased in fenvalerate-exposed offspring. Prefrontal PSD95, a postsynaptic membrane marker, was downregulated in fenvalerate-exposed adulthood offspring. Fenvalerate-induced reduction of prefrontal PSD95 began at GD18 fetal period. Accordingly, prefrontal 5-HT, a neurotransmitter for synaptogenesis, was also reduced in fenvalerate-exposed GD18 fetuses. Tryptophan hydroxylase 2 (TPH2), a key enzyme for 5-HT synthesis, was downregulated in the midbrain of fenvalerate-exposed GD18 fetuses. Additional experiment showed that GRP78 and p-eIF2α, two endoplasmic reticulum stress-related proteins, were increased in the midbrain of fenvalerate-exposed fetal mice. The present results suggest that prenatal exposure to fenvalerate causes depressive-like behavior in adulthood, partially by inhibiting brain-derived 5-HT synthesis.
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Affiliation(s)
- Hui-Min Zhu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Bo Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Tao Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Jing Shao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Hui-Ru Chen
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Chi Zhang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Li-Hua Xu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Jing-Jing Li
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Min Wang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - De-Xiang Xu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Xiu-Hong Meng
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Course/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China.
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Alkanat M, Alkanat HÖ. D-Limonene reduces depression-like behaviour and enhances learning and memory through an anti-neuroinflammatory mechanism in male rats subjected to chronic restraint stress. Eur J Neurosci 2024. [PMID: 38932560 DOI: 10.1111/ejn.16455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 05/28/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
D-limonene is a widely used flavouring additive in foods, beverages and fragrances due to its pleasant lemon-like odour. This study aimed to investigate the effects of D-limonene on the central nervous system when subjected to chronic restraint stress in rats for 21 days. Forty rats were randomly divided into five groups: i) control, ii) D-limonene, iii) restraint stress, iv) restraint stress+D-limonene and v) restraint stress+fluoxetine. Following the induction of restraint stress, the sucrose preference test, the open field test, the novel object recognition test and the forced swimming test were performed. The levels of BDNF, IL-1β, IL-6 and caspase-1 were measured from hippocampal tissue using the ELISA method. Sucrose preference test results showed an increase in consumption rate in the stress+D-limonene and a decrease in the stress group. The stress+D-limonene group reversed the increased defensive behaviour observed in the open-field test compared to the stress group. In the novel object recognition test, the discrimination index of the stress+D-limonene group increased compared to the stress group. BDNF levels increased in the stress+limonene group compared to the stress group. In contrast, IL-1β and caspase-1 levels increased in the stress group compared to the control and decreased in the stress+limonene group compared to the stress group. In this study, D-limonene has been found to have antidepressant-like properties, reducing anhedonic and defensive behaviours and the impairing effects of stress on learning and memory tests. It was observed that D-limonene showed these effects by alleviating neuroinflammation induced by chronic restraint stress in rats.
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Affiliation(s)
- Mehmet Alkanat
- Department of Physiology, Giresun University, Medical School, Giresun, Turkey
| | - Hafize Özdemir Alkanat
- Faculty of Health Science, Department of Internal Medicine Nursing, Giresun University, Giresun, Turkey
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12
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Değirmenci MD, Çalışkan H, Güneş E. Effects of chronic intermittent cold stress on anxiety-depression-like behaviors in adolescent rats. Behav Brain Res 2024:115130. [PMID: 38936426 DOI: 10.1016/j.bbr.2024.115130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/14/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Stress, which triggers numerous physiological and behavioral responses in the organism, is a significant risk factor that contributes to the development of psychiatric disorders such as depression and anxiety. This study aimed to investigate the inflammation, oxidative stress status, anxiety, and depression-like behaviors of adolescent rodents exposed to chronic intermittent cold stress. Adolescent male rats were subjected to a modified chronic intermittent cold stress model (21 days, 1hour/day, 4 °C). Depression-like behaviors were evaluated using the sucrose preference and forced swimming tests, while anxiety-like behaviors were assessed using the open field, elevated plus maze, and light-dark box tests. We measured levels of cortisol, tumor necrosis factor-α, interleukin-1β, brain-derived natriuretic factor, reactive oxygen species, malondialdehyde, total oxidants and antioxidants, and other chemicals in the prefrontal cortex, thalamus, striatum, and hippocampus brain regions of rats using ELISA and colorimetric methods. Data were analyzed using Student's t-test and Pearson correlation analysis. After the cold stress treatment, both anxiety and depression-like behaviors increased remarkably in the subjects. Our study revealed significant changes in various brain regions among the stress-exposed subjects. Cold stress resulted in decreased BDNF levels in the prefrontal cortex and striatum (p < 0.05), increased cortisol levels in the prefrontal cortex (p < 0.05), increased IL-1β levels in the hippocampus and thalamus (p < 0.05), increased protein carbonyl levels in the striatum (p < 0.05), and decreased TAS in the prefrontal cortex and thalamus (p < 0.05). Adolescent rats exposed to cold exhibit both anxiety- and depression-like behaviors. This study observed an increase in inflammation and oxidative stress in various brain regions, yet the responses to stress varied. Our findings suggest that adolescence is a period of heightened sensitivity to stress, which can lead to dramatic consequences.
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Affiliation(s)
| | - Hasan Çalışkan
- Balıkesir University Medicine Faculty, Physiology Department, Balıkesir, Turkey
| | - Emel Güneş
- Ankara University Medicine Faculty, Physiology Department, Ankara, Turkey
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13
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Li C, Xue Q, Li H, Peng Y, Wu Y, Yuan M, Duan Q, Hong X, Chen G, Liao F, Wu P, Miao C. Huangqin Qingre Chubi Capsule improves rheumatoid arthritis accompanied depression through the Wnt1/β-catenin signaling pathway. Int Immunopharmacol 2024; 138:112474. [PMID: 38917529 DOI: 10.1016/j.intimp.2024.112474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/31/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024]
Abstract
AIM OF THE STUDY Research on the mechanism of Huangqin Qingre Chubi Capsules (HQC) in improving rheumatoid arthritis accompanied depression (RA-dep) model rats. METHODS We employed real-time qPCR (RT-qPCR), western blotting (WB), confocal microscopy, bioinformatics, and other methods to investigate the anti-RA-dep effects of HQC and its underlying mechanisms. RESULTS HQC alleviated the pathological indexes of inflammation and depression in RA-dep model rats, decreased the levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6, increased the levels of norepinephrine(NE) and serotonin(5-HT), and improved the injury of hippocampus. The analysis of network pharmacology suggests that HQC may target the Wnt/β-catenin pathway in the treatment of RA-dep. Furthermore, molecular dynamics simulations revealed a strong affinity between HQC and the Wnt1 molecule. RT-qPCR and Western Blot (WB) experiments confirmed the critical role of the Wnt1/β-catenin signaling pathway in the treatment of RA-dep model rats with HQC. In vitro, the HQC drug-containing serum (HQC-serum) activates the Wnt1/β-catenin signaling pathway in hippocampal cells and, in conjunction with Wnt1, ameliorates RA-dep. In summary, HQC exerts its anti-inflammatory and antidepressant effects in the treatment of RA-dep by binding to Wnt1 and regulating the Wnt1/β-catenin signaling pathway. CONCLUSIONS HQC improved the inflammatory reaction and depression-like behavior of RA-dep model rats by activating Wnt1/β-catenin signal pathway. This study revealed a new pathogenesis of RA-dep and contributes to the clinical promotion of HQC in the treatment of RA-dep.
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Affiliation(s)
- Chen Li
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Qiuyun Xue
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Hui Li
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yanhui Peng
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yajie Wu
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Meiling Yuan
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Qiangjun Duan
- Department of Experimental Teaching Center, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Xinghui Hong
- Department of Experimental Teaching Center, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Guangliang Chen
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China.
| | - Faxue Liao
- The First Affiliated Hospital of Anhui Medical University, Hefei, China; Anhui Public Health Clinical Center, Hefei, China.
| | - Peng Wu
- Department of Anatomy, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China.
| | - Chenggui Miao
- Department of Pharmacology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Institute of Prevention and Treatment of Rheumatoid Arthritis, Anhui University of Chinese Medicine, Hefei, Anhui, China; School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region.
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Wang Z, Hu Q, Tian C, Wang R, Jiao Q, Chen F, Wu T, Wang J, Zhu Y, Liu A, Zhang W, Li J, Shen H. Prophylactic Effects of n-Acethylcysteine on Inflammation-induced Depression-like Behaviors in Mice. Neuroscience 2024; 549:42-54. [PMID: 38729599 DOI: 10.1016/j.neuroscience.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/16/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024]
Abstract
Depression, affecting individuals worldwide, is a prevalent mental disease, with an increasing incidence. Numerous studies have been conducted on depression, yet its pathogenesis remains elusive. Recent advancements in research indicate that disturbances in synaptic transmission, synaptic plasticity, and reduced neurotrophic factor expression significantly contribute to depression's pathogenesis. In our study, we utilized adult male C57BL/6J mice. Lipopolysaccharide (LPS) can induce both chronic and acute depression-like symptoms in mice, a widely used model for studying depression associated with inflammation. N-acetylcysteine (NAC) exhibits anti-inflammatory and ameliorative effects on depressive symptoms. This study sought to determine whether NAC use could mitigate inflammatory depressive behavior through the enhancement of synaptic transmission, synaptic plasticity, and increasing levels of brain-derived neurotrophic factor (BDNF). In this study, we discovered that in mice modeled with depression-like symptoms, the expression levels of dendrites, BDNF, and miniature excitatory postsynaptic potential (mEPSC) in glutamatergic neurons, as well as the α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid glutamate receptors (AMPARs) GluA1 and GluA2 subunits, were significantly decreased. These findings suggest an impairment in the synaptic transmission of glutamatergic neurons. Following treatment with NAC, the previously mentioned levels improved, indicating an enhancement in both synaptic transmission and synaptic plasticity. Our results suggest that NAC exerts a protective effect on mouse models of inflammatory depression, potentially through the enhancement of synaptic transmission and plasticity, as well as the restoration of neurotrophic factor expression. These findings offer vital animal experimental evidence supporting NAC's role in mitigating inflammatory depressive behaviors.
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Affiliation(s)
- Zhenhuan Wang
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Qi Hu
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China; Comprehensive Development Service Center, Tianjin Baodi District Health Commission, Tianjin, China
| | - Chao Tian
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Ruipeng Wang
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Qingyan Jiao
- Department of Sleep Medicine, Tianjin Anding Hospital, Tianjin, China
| | - Feng Chen
- Institute for Translational Neuroscience, the Second Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China
| | - Tongrui Wu
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Jialiang Wang
- Laboratory of Neurobiology, School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Yuxuan Zhu
- Laboratory of Neurobiology, Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Aili Liu
- Laboratory of Neurobiology, Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Wei Zhang
- Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin, China.
| | - Jie Li
- Institute of Mental Health, Tianjin Anding Hospital, Tianjin, China.
| | - Hui Shen
- Laboratory of Neurobiology, Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
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Song Y, Lai M, Liao Z, Zhang Z, Zhu G, Yang M, Ai Z, Zheng Q, Su D. Saikosaponin antidepressant mechanism: Improving the sphingolipid metabolism in the cortex via Apolipoprotein E and triggering neurovascular coupling. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155829. [PMID: 38941813 DOI: 10.1016/j.phymed.2024.155829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/03/2024] [Accepted: 06/13/2024] [Indexed: 06/30/2024]
Abstract
BACKGROUND Since the pathogenesis of depression is complex, antidepressant therapy remains unsatisfactory. Recent evidence suggests a link between depression and lipid metabolism. Saikosaponin (SS) exhibits antidepression and lipid-regulating effects in modern pharmacology. However, it is unknown whether lipid regulation is the key mechanism of the SS antidepressant effect and how it works. PURPOSE In this study, we investigated the relationship between the antidepressant activity of SS and the regulation of lipid metabolism and explored potential mechanisms. METHODS APOE-/- mice, in combination with the chronic unpredictable mild stress (CUMS) model, were used to study the relationship between SS antidepressant activity and lipid metabolism through behavioral, electrophysiological techniques, and non-targeted lipidomics. Western blot, primary cell culture technology, and laser speckle cerebral blood flow imaging were employed to elucidate potential mechanisms. GraphPad Prism was used for statistical analysis, and p < 0.05 was considered statistically significant. RESULTS APOE-/- mice exhibit more severe depressive-like behavior and dysregulation of sphingolipid metabolism in CUMS. SS alleviates depressive behavior and cortical sphingolipid metabolism disorder caused by CUMS, but has no effect on APOE-/- mice. SS alleviates the imbalance between ceramide (Cer) and sphingomyelin (SM) through acidic sphingomyelinase (AMSase). In addition, SS regulates neuronal glutamate release via sphingolipid metabolism, thereby alleviating the CUMS-induced inhibition of neurovascular coupling (regulates metabotropic glutamate receptor and IP3 receptor), which ameliorates the reduction of cerebral blood flow in depressed mice. CONCLUSION Our study highlights the role of lipid metabolism in the antidepressant activity of SS and explores its underlying mechanisms. This study provided new insights into the better understanding of the antidepressant mechanisms of phytomedicine while increasing the possibility of lipid metabolism as a therapeutic strategy for depression.
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Affiliation(s)
- Yonggui Song
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Meixizi Lai
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Zhou Liao
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Zhentao Zhang
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Genhua Zhu
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Ming Yang
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China; Jiangxi Guxiang Jinyun Comprehensive Health Industry Co., Ltd., Nanchang, PR China
| | - Zhifu Ai
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Qin Zheng
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China
| | - Dan Su
- Key Laboratory of Depression Animal Model Based on TCM Syndrome, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, 1688 Meiling Road, Nanchang 330006, PR China.
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16
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Meng L, Zhou M, Wang Y, Pan Y, Chen Z, Wu B, Zhao Y. CD177 on neutrophils engages stress-related behavioral changes in male mice. Brain Behav Immun 2024; 120:403-412. [PMID: 38871062 DOI: 10.1016/j.bbi.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 05/14/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024] Open
Abstract
Persistent psychological stress can affect immune homeostasis and is a key factor in the development of depression. Many efforts are focused on the identifcation of pathways that link the immune system and mood disorders. Here, we found that psychological stress caused an increase in the frequency of brain-associated neutrophils and the level of neutrophil-specific antigen CD177 on peripheral neutrophils in male mice. Upregulated levels of blood CD177 are associated with depression in humans. Neutrophil depletion or Cd177 deficiency protected mice from stress-induced behavioral deficits. Importantly, adoptive transfer of CD177+ neutrophils from stressed mice increased the frequency of brain-associated leukocytes, including neutrophils, and caused behavioral defects in naive mice. These effects may be related to the endothelial adhesion advantage of CD177+ neutrophils and the interference of serine protease on endothelial junction. Our findings suggest a critical link between circulating CD177+ neutrophils and psychological stress-driven behavioral disorder.
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Affiliation(s)
- Ling Meng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Mi Zhou
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunpeng Wang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yiming Pan
- Laboratory of Developmental Biology, Department of Cell Biology and Genetics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Zheng Chen
- Department of Vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bin Wu
- Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
| | - Yan Zhao
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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17
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Nunes EJ, Kebede N, Rajadhyaksha AM, Addy NA. L-type calcium channel regulation of depression, anxiety and anhedonia-related behavioral phenotypes following chronic stress exposure. Neuropharmacology 2024; 257:110031. [PMID: 38871116 DOI: 10.1016/j.neuropharm.2024.110031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/18/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Abstract
Exposure to chronic and unpredictable stressors can precipitate mood-related disorders in humans, particularly in individuals with pre-existing mental health challenges. L-type calcium channels (LTCCs) have been implicated in numerous neuropsychiatric disorders, as LTCC encoding genes have been identified as candidate risk factors for neuropsychiatric illnesses. In these sets of experiments, we sought to examine the ability of LTCC blockade to alter depression, anxiety, and anhedonic-related behavioral responses to chronic unpredictable stress (CUS) exposure in female and male rats. Rats first underwent either 21 days of CUS or no exposure to chronic stressors, serving as home cage controls (HCC). Then rats were examined for anhedonia-related behavior, anxiety and depression-like behavioral responses as measured by the sucrose preference test (SPT), elevated plus maze (EPM), and forced swim test (FST). CUS exposed females and males showed anhedonic and anxiogenic-like behavioral responses on the SPT and EPM, respectively, when compared to HCCs. In female and male rats, systemic administration of the LTCC blocker isradipine (0.4 mg/kg and 1.2 mg/kg, I.P.) attenuated the CUS-induced decrease in sucrose preference and reversed the CUS-induced decrease in open arm time. In the FST, systemic isradipine decreased immobility time across all groups, consistent with an antidepressant-like response. However, there were no significant differences in forced swim test immobility time between HCC and CUS exposed animals. Taken together, these data point to a role of LTCCs in the regulation of mood disorder-related behavioral phenotype responses to chronic stress exposure.
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Affiliation(s)
- Eric J Nunes
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Nardos Kebede
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Anjali M Rajadhyaksha
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Nii A Addy
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA; Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, USA; Wu Tsai Institute, Yale University, New Haven, CT, USA; Interdepartmental Neuroscience Program, Yale University, New Haven, CT, USA.
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18
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Wu X, Liu C, Wang J, Zhang Y, Li Y, Wang Y, Song L, Qin L, Zhang T, He Q. The role of TrkB signaling-mediated synaptic plasticity in the antidepressant properties of catalpol, the main active compound of Rehmannia glutinosa Libosch. JOURNAL OF ETHNOPHARMACOLOGY 2024; 333:118448. [PMID: 38871009 DOI: 10.1016/j.jep.2024.118448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rehmannia glutinosa Libosch. (RGL) is a famous ethnic medicine contained in antidepressant Chinese Medicine formulas and is traditionally clinically used for depression. We have recently confirmed that RGL enhanced synaptic plasticity in a mouse model of Chinese medical syndrome and that catalpol may be the representatively pharmacological component responsible for its improvement in synaptic plasticity and treatment of depression. Impaired synaptic plasticity is closely linked to major depression. Tyrosine kinase receptor B (TrkB) signaling has recently been discovered as a key pathway for synaptic plasticity improvement and antidepressant discovery. However, to date, it is unknown whether the target of catalpol to improve synaptic plasticity involves TrkB and whether its antidepressant mechanism involves synaptic plasticity mediated by TrkB signaling. AIM OF STUDY This study aims to uncover the antidepressant targets and mechanisms of catalpol, the main active compound of RGL, based on TrkB signaling-mediated synaptic plasticity. MATERIALS AND METHODS We have recently predicted through molecular networking strategy (including network pharmacology, molecular docking, and molecular dynamics simulation) that catalpol may exert its antidepressant effects by regulating TrkB signaling and thus modulating essential synaptic plasticity proteins. Then, this study used classic behavioral tests, targeted diagnostic reagents, Nissl and Golgi staining, immunohistochemical analysis, immunofluorescence analysis, western blotting, enzyme-linked immunosorbent assay, and quantitative PCR to confirm the target and signaling of catalpol to improve synaptic plasticity for the treatment of depression. RESULTS The data showed that catalpol could improve synaptic plasticity and depressive behaviors, and its action pathway was predicted to involve TrkB signaling. Subsequently, the blockade of TrkB abolished the improvement of synaptic plasticity by catalpol and its antidepressant properties, which validated that TrkB signaling was the key pathway for catalpol to improve synaptic plasticity and exert antidepressant properties. Inhibition of COX-2 was likely to be a necessary facilitator for the antidepressant efficacy of catalpol via the TrkB target and TrkB-mediated synaptic plasticity. CONCLUSION TrkB signaling-mediated synaptic plasticity plays a key role in the antidepressant properties of catalpol. This study provides critical information for the development of new and targeted antidepressant therapies or treatment strategies by catalpol. However, considering the existence of sex differences in depression (female depression is 2-3 times than that of males) and not exploring the antidepressant sex specificity of catalpol is a limitation, we will investigate the sex specificity of the antidepressant effects and molecular mechanisms of catalpol on sex-specific animals in the future, to provide a preclinical basis for more accurate and targeted medication of catalpol.
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Affiliation(s)
- Xiaohui Wu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Chen Liu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Junming Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province; Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Yueyue Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Yamin Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Yanmei Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Lingling Song
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Lingyu Qin
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Tianzhu Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
| | - Qingwen He
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China;.
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19
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Peña JE, Corbett BF, Tamminga CA, Bhatnagar S, Hitti FL. Investigating Resistance to Antidepressants in Animal Models. Neuroscience 2024; 548:69-80. [PMID: 38697464 DOI: 10.1016/j.neuroscience.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/12/2024] [Accepted: 04/25/2024] [Indexed: 05/05/2024]
Abstract
Major depressive disorder is one of the most prevalent psychiatric diseases, and up to 30-40% of patients remain symptomatic despite treatment. Novel therapies are sorely needed, and animal models may be used to elucidate fundamental neurobiological processes that contribute to human disease states. We conducted a systematic review of current preclinical approaches to investigating treatment resistance with the goal of describing a path forward for improving our understanding of treatment resistant depression. We conducted a broad literature search to identify studies relevant to the preclinical investigation of treatment resistant depression. We followed PRISMA (Preferred Reporting Items for Systemic Reviews and Meta-Analyses) guidelines and included all relevant studies. We identified 467 studies in our initial search. Of these studies, we included 69 in our systematic review after applying our inclusion/exclusion criteria. We identified 10 broad strategies for investigating treatment resistance in animal models. Stress hormone administration was the most commonly used model, and the most common behavioral test was the forced swim test. We systematically identified and reviewed current approaches for gaining insight into the neurobiology underlying treatment resistant depression using animal models. Each approach has its advantages and disadvantages, but all require careful consideration of their potential limitations regarding therapeutic translation. An enhanced understanding of treatment resistant depression is sorely needed given the burden of disease and lack of effective therapies.
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Affiliation(s)
- Julianna E Peña
- Department of Neurosurgery, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Brian F Corbett
- Department of Biology, Rutgers University, Camden, NJ, United States
| | - Carol A Tamminga
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Seema Bhatnagar
- Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
| | - Frederick L Hitti
- Department of Neurosurgery, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States.
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20
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Barr J, Walz A, Restaino AC, Amit M, Barclay SM, Vichaya EG, Spanos WC, Dantzer R, Talbot S, Vermeer PD. Tumor-infiltrating nerves functionally alter brain circuits and modulate behavior in a male mouse model of head-and-neck cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.18.562990. [PMID: 37905135 PMCID: PMC10614955 DOI: 10.1101/2023.10.18.562990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Cancer patients often experience changes in mental health, prompting an exploration into whether nerves infiltrating tumors contribute to these alterations by impacting brain functions. Using a male mouse model for head and neck cancer, we utilized neuronal tracing techniques and show that tumor-infiltrating nerves indeed connect to distinct brain areas via the ipsilateral trigeminal ganglion. The activation of this neuronal circuitry led to behavioral alterations represented by decreased nest-building, increased latency to eat a cookie, and reduced wheel running. Tumor-infiltrating nociceptor neurons exhibited heightened activity, as indicated by increased calcium mobilization. Correspondingly, the specific brain regions receiving these neural projections showed elevated cFos and delta FosB expression in tumor-bearing mice, alongside markedly intensified calcium responses compared to non-tumor-bearing counterparts. The genetic elimination of nociceptor neurons in tumor-bearing mice led to decreased brain Fos expression and mitigated the behavioral alterations induced by the presence of the tumor. While analgesic treatment successfully restored behaviors involving oral movements to normalcy in tumor-bearing mice, it did not have a similar therapeutic effect on voluntary wheel running. This discrepancy points towards an intricate relationship, where pain is not the exclusive driver of such behavioral shifts. Unraveling the interaction between the tumor, infiltrating nerves, and the brain is pivotal to developing targeted interventions to alleviate the mental health burdens associated with cancer.
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21
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Li XY, Zhang SY, Hong YZ, Chen ZG, Long Y, Yuan DH, Zhao JJ, Tang SS, Wang H, Hong H. TGR5-mediated lateral hypothalamus-dCA3-dorsolateral septum circuit regulates depressive-like behavior in male mice. Neuron 2024; 112:1795-1814.e10. [PMID: 38518778 DOI: 10.1016/j.neuron.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/24/2024]
Abstract
Although bile acids play a notable role in depression, the pathological significance of the bile acid TGR5 membrane-type receptor in this disorder remains elusive. Using depression models of chronic social defeat stress and chronic restraint stress in male mice, we found that TGR5 in the lateral hypothalamic area (LHA) predominantly decreased in GABAergic neurons, the excitability of which increased in depressive-like mice. Upregulation of TGR5 or inhibition of GABAergic excitability in LHA markedly alleviated depressive-like behavior, whereas down-regulation of TGR5 or enhancement of GABAergic excitability facilitated stress-induced depressive-like behavior. TGR5 also bidirectionally regulated excitability of LHA GABAergic neurons via extracellular regulated protein kinases-dependent Kv4.2 channels. Notably, LHA GABAergic neurons specifically innervated dorsal CA3 (dCA3) CaMKIIα neurons for mediation of depressive-like behavior. LHA GABAergic TGR5 exerted antidepressant-like effects by disinhibiting dCA3 CaMKIIα neurons projecting to the dorsolateral septum (DLS). These findings advance our understanding of TGR5 and the LHAGABA→dCA3CaMKIIα→DLSGABA circuit for the development of potential therapeutic strategies in depression.
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Affiliation(s)
- Xu-Yi Li
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Shi-Ya Zhang
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yi-Zhou Hong
- Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhi-Gang Chen
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yan Long
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Dan-Hua Yuan
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jia-Jia Zhao
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Su-Su Tang
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Hao Wang
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine/Nanhu Brain-Computer Interface Institute, Hangzhou 310013, China.
| | - Hao Hong
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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22
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Deng Y, Liang X, Li Y, Jiang L, Wang J, Tang J, Li J, Xie Y, Xiao K, Zhu P, Guo Y, Luo Y, Tang Y. PGC-1α in the hippocampus mediates depressive-like and stress-coping behaviours and regulates excitatory synapses in the dentate gyrus in mice. Neuropharmacology 2024; 250:109908. [PMID: 38492883 DOI: 10.1016/j.neuropharm.2024.109908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 02/13/2024] [Accepted: 03/10/2024] [Indexed: 03/18/2024]
Abstract
Decreased hippocampal synaptic plasticity is an important pathological change in stress-related mood disorders, including major depressive disorder. However, the underlying mechanism is unclear. PGC-1α, a transcriptional coactivator, is a key factor in synaptic plasticity. We investigated the relationships between changes in hippocampal PGC-1α expression and depressive-like and stress-coping behaviours, and whether they are related to hippocampal synapses. Adeno-associated virus was used to alter hippocampal PGC-1α expression in male C57BL/6 mice. The sucrose preference test and forced swimming test were used to assess their depressive-like and stress-coping behaviours, respectively. Immunohistochemistry and stereology were used to calculate the total number of excitatory synapses in each hippocampal subregion (the cornu ammonis (CA) 1, CA3, and dentate gyrus). Immunofluorescence was used to visualize the changes in dendritic structure. Western blotting was used to detect the expression of hippocampal PGC-1α and mitochondrial-associated proteins, such as UCP2, NRF1 and mtTFAs. Our results showed that mice with downregulated PGC-1α expression in the hippocampus exhibited depressive-like and passive stress-coping behaviours, while mice with upregulated PGC-1α in the hippocampus exhibited increased stress-coping behaviours. Moreover, the downregulation of hippocampal PGC-1α expression resulted in a decrease in the number of excitatory synapses in the DG and in the protein expression of UCP2 in the hippocampus. Alternatively, upregulation of hippocampal PGC-1α yielded the opposite results. This suggests that hippocampal PGC-1α is involved in regulating depressive-like and stress-coping behaviours and modulating the number of excitatory synapses in the DG. This provides new insight for the development of antidepressants.
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Affiliation(s)
- Yuhui Deng
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Xin Liang
- Department of Pathology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yue Li
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Lin Jiang
- Lab Teaching and Management Center, Chongqing Medical University, Chongqing, 400016, PR China
| | - Jin Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Jing Tang
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Jing Li
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yuhan Xie
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Kai Xiao
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Peilin Zhu
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yijing Guo
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China
| | - Yanmin Luo
- Department of Physiology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China.
| | - Yong Tang
- Department of Histology and Embryology, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China; Laboratory of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, PR China.
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23
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Yalçın B, Pomrenze MB, Malacon K, Drexler R, Rogers AE, Shamardani K, Chau IJ, Taylor KR, Ni L, Contreras-Esquivel D, Malenka RC, Monje M. Myelin plasticity in the ventral tegmental area is required for opioid reward. Nature 2024; 630:677-685. [PMID: 38839962 PMCID: PMC11186775 DOI: 10.1038/s41586-024-07525-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/07/2024] [Indexed: 06/07/2024]
Abstract
All drugs of abuse induce long-lasting changes in synaptic transmission and neural circuit function that underlie substance-use disorders1,2. Another recently appreciated mechanism of neural circuit plasticity is mediated through activity-regulated changes in myelin that can tune circuit function and influence cognitive behaviour3-7. Here we explore the role of myelin plasticity in dopaminergic circuitry and reward learning. We demonstrate that dopaminergic neuronal activity-regulated myelin plasticity is a key modulator of dopaminergic circuit function and opioid reward. Oligodendroglial lineage cells respond to dopaminergic neuronal activity evoked by optogenetic stimulation of dopaminergic neurons, optogenetic inhibition of GABAergic neurons, or administration of morphine. These oligodendroglial changes are evident selectively within the ventral tegmental area but not along the axonal projections in the medial forebrain bundle nor within the target nucleus accumbens. Genetic blockade of oligodendrogenesis dampens dopamine release dynamics in nucleus accumbens and impairs behavioural conditioning to morphine. Taken together, these findings underscore a critical role for oligodendrogenesis in reward learning and identify dopaminergic neuronal activity-regulated myelin plasticity as an important circuit modification that is required for opioid reward.
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Affiliation(s)
- Belgin Yalçın
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Matthew B Pomrenze
- Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Karen Malacon
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Richard Drexler
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Abigail E Rogers
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Kiarash Shamardani
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Isabelle J Chau
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Kathryn R Taylor
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Lijun Ni
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | | | - Robert C Malenka
- Nancy Pritzker Laboratory, Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Michelle Monje
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA.
- Howard Hughes Medical Institute, Stanford, CA, USA.
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24
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Norris MR, Becker LJ, Bilbily J, Chang YH, Borges G, Dunn SS, Madasu MK, Vazquez CR, Cariello SA, Al-Hasani R, Creed MC, McCall JG. Spared nerve injury decreases motivation in long-access homecage-based operant tasks in mice. Pain 2024; 165:1247-1265. [PMID: 38015628 PMCID: PMC11095834 DOI: 10.1097/j.pain.0000000000003123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 10/10/2023] [Indexed: 11/30/2023]
Abstract
ABSTRACT Neuropathic pain causes both sensory and emotional maladaptation. Preclinical animal studies of neuropathic pain-induced negative affect could result in novel insights into the mechanisms of chronic pain. Modeling pain-induced negative affect, however, is variable across research groups and conditions. The same injury may or may not produce robust negative affective behavioral responses across different species, strains, and laboratories. Here, we sought to identify negative affective consequences of the spared nerve injury model on C57BL/6J male and female mice. We found no significant effect of spared nerve injury across a variety of approach-avoidance conflict, hedonic choice, and coping strategy assays. We hypothesized these inconsistencies may stem in part from the short test duration of these assays. To test this hypothesis, we used the homecage-based Feeding Experimentation Device version 3 to conduct 12-hour, overnight progressive ratio testing to determine whether mice with chronic spared nerve injury had decreased motivation to earn palatable food rewards. Our data demonstrate that despite equivalent task learning, spared nerve injury mice are less motivated to work for a sugar pellet than sham controls. Furthermore, when we normalized behavioral responses across all the behavioral assays we tested, we found that a combined normalized behavioral score is predictive of injury state and significantly correlates with mechanical thresholds. Together, these results suggest that homecage-based operant behaviors provide a useful platform for modeling nerve injury-induced negative affect and that valuable pain-related information can arise from agglomerative data analyses across behavioral assays-even when individual inferential statistics do not demonstrate significant mean differences.
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Affiliation(s)
- Makenzie R. Norris
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Léa J. Becker
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
| | - John Bilbily
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, USA
| | - Yu-Hsuan Chang
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Gustavo Borges
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
| | - Samantha S. Dunn
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Manish K. Madasu
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
| | - Chayla R. Vazquez
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Solana A. Cariello
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
| | - Ream Al-Hasani
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - Meaghan C. Creed
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, USA
| | - Jordan G. McCall
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA; Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, St. Louis, MO, USA; Center for Clinical Pharmacology, St. Louis College of Pharmacy and Washington University School of Medicine, St. Louis, MO, USA; Washington University Pain Center, Washington University in St. Louis, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA
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Klimenko A, Nagibin V, Horlova A, Dobropolska Y, Bogovik R, Stroy D, Isaev D, Dosenko V. Downregulation of lncRNAs Gomafu, NONMMUT033604.2, and NONMMUT064397.2 in the hippocampus of mice with model of post-traumatic stress disorder. World J Biol Psychiatry 2024; 25:283-290. [PMID: 38629762 DOI: 10.1080/15622975.2024.2342849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 04/07/2024] [Indexed: 06/06/2024]
Abstract
OBJECTIVES Molecular mechanisms of post-traumatic stress disorder (PTSD) development have been analysed by evaluati-ng changes in the expression level of long non-coding RNA (lncRNA) as a potential biomarker of the disease and as one of the molecular aspects associated with the disease development. METHODS In our study, we used quantitative polymerase chain reaction (qPCR) to evaluate changes in the expression level of long non-coding RNA - Gomafu, NONMMUT033604.2, and NONMMUT064397.2 - in the hippocampus of mice that were subjected to an artificially induced middle single prolonged stress (mSPS) model of post-traumatic stress disorder. RESULTS We found a significant reduction in the expression levels of each of the three lncRNAs tested: Gomafu in 45.4 times, NONMMUT033604.2 in 53.4 times, and NONMMUT064397.2 in 5.2 times. The results of the present study provide evidence that the mSPS model effectively induces PTSD-like behaviour in mice leading to a significant decrease in the expression level of Gomafu, NONMMUT033604.2 and NONMMUT064397.2 lncRNA in mice hippocampus. CONCLUSIONS This data provides evidence that the three studied lncRNAs could be potential biomarkers of PTSD development.
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Affiliation(s)
- Anastasiya Klimenko
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Vasyl Nagibin
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Anastasiia Horlova
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Yulia Dobropolska
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Ruslan Bogovik
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Dmytro Stroy
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Dmytro Isaev
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Victor Dosenko
- Department of General and Molecular Pathophysiology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
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Jiang H, Zhang M, Wang HQ, Zhang NN, Li XM, Yang XY, Chen AP, Yan X, Zhang Z, Chu SF, Wang ZZ, Chen NH. Inflammation and Connexin 43 profiles in the prefrontal cortex are relevant to stress susceptibility and resilience in mice. Pharmacol Biochem Behav 2024; 239:173757. [PMID: 38574898 DOI: 10.1016/j.pbb.2024.173757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/05/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024]
Abstract
Depression is a major chronic mental illness worldwide, characterized by anhedonia and pessimism. Exposed to the same stressful stimuli, some people behave normally, while others exhibit negative behaviors and psychology. The exact molecular mechanisms linking stress-induced depressive susceptibility and resilience remain unclear. Connexin 43 (Cx43) forms gap junction channels between the astrocytes, acting as a crucial role in the pathogenesis of depression. Cx43 dysfunction could lead to depressive behaviors, and depression down-regulates the expression of Cx43 in the prefrontal cortex (PFC). Besides, accumulating evidence indicates that inflammation is one of the most common pathological features of the central nervous system dysfunction. However, the roles of Cx43 and peripheral inflammation in stress-susceptible and stress-resilient individuals have rarely been investigated. Thus, animals were classified into the chronic unpredictable stress (CUS)-susceptible group and the CUS-resilient group based on the performance of behavioral tests following the CUS protocol in this study. The protein expression of Cx43 in the PFC, the Cx43 functional changes in the PFC, and the expression levels including interleukin (IL)-1β, tumor necrosis factor-α, IL-6, IL-2, IL-10, and IL-18 in the peripheral serum were detected. Here, we found that stress exposure triggered a significant reduction in Cx43 protein expression in the CUS-susceptible mice but not in the CUS-resilient mice accompanied by various Cx43 phosphorylation expression and the changes of inflammatory signals. Stress resilience is associated with Cx43 in the PFC and fluctuation in inflammatory signaling, showing that therapeutic targeting of these pathways might promote stress resilience.
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Affiliation(s)
- Hong Jiang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Meng Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hui-Qin Wang
- School of Pharmacy, Hunan University of Traditional Chinese Medicine & Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, Changsha 410208, China
| | - Ning-Ning Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xin-Mu Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xue-Ying Yang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Ai-Ping Chen
- China Three Gorges University College of Medicine and Health Sciences, Yichang 443002, China
| | - Xu Yan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhao Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shi-Feng Chu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhen-Zhen Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Nai-Hong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; School of Pharmacy, Hunan University of Traditional Chinese Medicine & Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, Changsha 410208, China.
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27
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Güvel MC, Aykan U, Paykal G, Uluoğlu C. Chronic administration of caffeine, modafinil, AVL-3288 and CX516 induces time-dependent complex effects on cognition and mood in an animal model of sleep deprivation. Pharmacol Biochem Behav 2024; 241:173793. [PMID: 38823543 DOI: 10.1016/j.pbb.2024.173793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/16/2024] [Accepted: 05/23/2024] [Indexed: 06/03/2024]
Abstract
OBJECTIVE Caffeine and modafinil are used to reverse effects of sleep deprivation. Nicotinic alpha-7 receptor and AMPA receptor positive allosteric modulators (PAM) are also potential substances in this context. Our objective is to evaluate the effects of caffeine, modafinil, AVL-3288 (nicotinic alpha-7 PAM) and CX516 (AMPA receptor PAM) on cognition and mood in a model of sleep deprivation. METHOD Modified multiple platform model is used to sleep-deprive mice for 24 days, for 8 h/day. Vehicle, Modafinil (40 mg/kg), Caffeine (5 mg/kg), CX516 (10 mg/kg), and AVL3288 (1 mg/kg) were administered intraperitoneally daily. A cognitive test battery was applied every six days for four times. The battery that included elevated plus maze, novel object recognition, and sucrose preference tests was administered on consecutive days. RESULTS Sleep deprivation decreased novel object recognition skill, but no significant difference was found in anxiety and depressive mood. Caffeine administration decreased anxiety-like behavior in short term, but this effect disappeared in chronic administration. Caffeine administration increased memory performance in chronic period. AVL group showed better memory performance in short term, but this effect disappeared in the rest of experiment. Although, in the modafinil group, no significant change in mood and memory was observed, anhedonia was observed in the chronic period in vehicle, caffeine and modafinil groups, but not in AVL-3288 and CX-516 groups. CONCLUSION Caffeine has anxiolytic effect in acute administration. The improvement of memory in chronic period may be associated with the neuroprotective effects of caffeine. AVL-3288 had a short-term positive effect on memory, but tolerance to these effects developed over time. Furthermore, no anhedonia was observed in AVL-3288 and CX516 groups in contrast to vehicle, caffeine and modafinil groups. This indicates that AVL-3288 and CX516 may show protective effect against depression.
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Affiliation(s)
- Muhammed Cihan Güvel
- Department of Medical Pharmacology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Utku Aykan
- Department of Medical Pharmacology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Gökçen Paykal
- Department of Medical Pharmacology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Canan Uluoğlu
- Department of Medical Pharmacology, Gazi University Faculty of Medicine, Ankara, Turkey; Neuroscience and Neurotechnology Center of Excellence (NÖROM), Ankara, Turkey.
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Wang H, Deng S, Bi J. LncRNA SNHG14 Served as a Biomarker of Depression Disorder Patients and Regulated Depression-Like Behaviors via MiR-200a-3p. TOHOKU J EXP MED 2024; 263:55-62. [PMID: 38296487 DOI: 10.1620/tjem.2024.j007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Depression disorder has become a major mental disease and has attracted special attention globally. Identifying specific biomarkers for the diagnosis and severity of depression disorder would benefit its clinical management. This study focused on the significance of lncRNA SNHG14 in depression disorder and investigated its effect on depression-like behaviors, aiming to explore a potential biomarker for depression disorder occurrence and development. This study included 147 patients with depression disorder and 98 healthy individuals. The serum SNHG14 in all participants was analyzed by PCR, and its diagnostic value was evaluated by receiver operatorating characteristic curve (ROC) analysis. The depression-like behaviors were induced via chronic social defeat stress (CSDS) and evaluated by sucrose preference, forced swimming, and open field tests. SNHG14 was significantly upregulated in depression disorder patients relative to healthy individuals, which discriminated depression disorder patients with a relatively high efficiency. Depression disorder patients with severe conditions showed higher serum SNHG14 levels, and a significantly positive correlation of SNHG14 with PHQ9 score was demonstrated. In CSDS mice, increasing SNHG14 and decreasing miR-200a-3p were observed. Silencing SNHG14 and overexpressing miR-200a-3p could alleviate reduced sucrose preference, increased swimming immobility time, decreased standing times, and decreased traveling distance induced by CSDS. The knockdown of SNHG14 promoted the expression of miR-200a-3p, and silencing miR-200a-3p could reverse the protective effect of SNHG14 silencing on depression-like behaviors. SNHG14 served as a biomarker for the occurrence and severity of depression disorder. Silencing SNHG14could alleviate depression-like behaviors via modulating miR-200a-3p.
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Affiliation(s)
- HongLi Wang
- Department of Neurology, People's Hospital of Dongxihu District
| | - SiWen Deng
- Department of Urology, People's Hospital of Dongxihu District
| | - Juan Bi
- Department of Neurology, People's Hospital of Dongxihu District
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29
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Campbell H, Guo JD, Kuhn C. Applying the Research Domain Criteria to Rodent Studies of Sex Differences in Chronic Stress Susceptibility. Biol Psychiatry 2024:S0006-3223(24)01351-9. [PMID: 38821193 DOI: 10.1016/j.biopsych.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 04/27/2024] [Accepted: 05/17/2024] [Indexed: 06/02/2024]
Abstract
Women have a two-fold increased rate of stress-associated psychiatric disorders such as depression and anxiety, but the mechanisms of this increased susceptibility remain incompletely understood. Female subjects were historically excluded from preclinical studies and clinical trials. Additionally, chronic stress paradigms used to study psychiatric pathology in animal models were developed for use in males. However, recent changes in NIH policy encourage inclusion of female subjects, and considerable work has been performed in recent years to understand biological sex differences that may underlie differences in susceptibility to chronic stress associated psychiatric conditions. We here review the utility as well as current challenges of using the framework of the NIH's research domain criteria as a transdiagnostic approach to study sex differences in rodent models of chronic stress including recent progress in the study of sex differences in the neurobehavioral domains of negative valence, positive valence, cognition, social processes, arousal, and social processes.
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Tang C, Liu H, Zou H, Su M, Yin H, Sun M, Zhao Y, Guo J, Lai X, Xue X, Li E. Dihydroartemisinin Protects Mice from CUMS-induced Depression-like Behaviors by Regulating Gut Microbes. Neuroscience 2024; 547:28-36. [PMID: 38552734 DOI: 10.1016/j.neuroscience.2023.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/05/2023] [Accepted: 11/26/2023] [Indexed: 04/09/2024]
Abstract
Depression is one of the most common forms of psychopathology, which is associated with gut microbiota dysfunction. Dihydroartemisinin (DHA) has been shown to regulate gut microbiota and ameliorate neuropathies, but whether it can be used to treat depression remains unclear. Our study found that DHA treatment raised the preference for sugar water in chronic unpredictable mild stress (CUMS)-induced mice and reduced the immobility time in open field, forced swimming and tail suspension experiments, and promoted doublecortin expression. Additionally, DHA up-regulated the diversity and richness of intestinal microbiota in depression-like mice, and restored the abnormal abundance of microbiota induced by CUMS, such as Turicibacter, Lachnospiraceae, Erysipelotrichaceae, Erysipelatoclostridium, Eubacterium, Psychrobacter, Atopostipes, Ileibacterium, Coriobacteriacea, Alistipes, Roseburia, Rikenella, Eggerthellaceae, Ruminococcus, Tyzzerella, and Clostridia. Furthermore, KEGG pathway analysis revealed that gut microbiota involved in the process of depression may be related to glucose metabolism, energy absorption and transport, and AMPK signaling pathway. These results indicated that DHA may play a protective role in CUMS-induced depression by mediating gut-microbiome.
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Affiliation(s)
- Chong Tang
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Haiming Liu
- Department of Psychiatry, Guangdong Province Hospital Chinese People's Armed Police Forces, PR China
| | - Hui Zou
- Department of Geriatrics, Nanfang Hospital of Southern Medical University, PR China
| | - Meilei Su
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Honglei Yin
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Meihua Sun
- Department of Geriatrics, Nanfang Hospital of Southern Medical University, PR China
| | - Yuhan Zhao
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Junlong Guo
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Xiaoling Lai
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China
| | - Xiang Xue
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China.
| | - Enze Li
- Department of Psychiatry, Nanfang Hospital of Southern Medical University, PR China.
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Xu J, Zhou L, Chen Z, Wang Y, Xu F, Kuang Q, Zhang Y, Zheng H. Bacillus coagulans and Clostridium butyricum synergistically alleviate depression in a chronic unpredictable mild stress mouse model through altering gut microbiota and prefrontal cortex gene expression. Front Pharmacol 2024; 15:1393874. [PMID: 38855745 PMCID: PMC11158626 DOI: 10.3389/fphar.2024.1393874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/22/2024] [Indexed: 06/11/2024] Open
Abstract
Introduction: The prevalence of major depressive disorder (MDD) has gradually increased and has attracted widespread attention. The aim of this study was to investigate the effect of a probiotic compound consisting of Bacillus coagulans and Clostridium butyricum, on a mouse depression model. Methods: Mice were subjected to chronic unpredictable mild stress (CUMS) and then treated with the probiotics at different concentrations. And mice received behavior test such as forced swimming test and tail suspension test. After that, all mice were sacrificed and the samples were collected for analysis. Moreover, prefrontal cortex (PFC) gene expression and the gut microbiota among different groups were also analyzed. Results: Probiotics improved depressive-like behavior in CUMS mice, as indicated by decreased immobility time (p < 0.05) in the forced swimming test and tail suspension test. probiotics intervention also increased the level of 5-hydroxytryptamine (5-HT) in the prefrontal cortex and decreased the adrenocorticotropic hormone (ACTH) level in serum. In addition, by comparing the PFC gene expression among different groups, we found that the genes upregulated by probiotics were enriched in the PI3K-Akt signaling pathway in the prefrontal cortex. Moreover, we found that downregulated genes in prefrontal cortex of CUMS group such as Sfrp5 and Angpt2, which were correlated with depression, were reversed by the probiotics. Furthermore, the probiotics altered the structure of the gut microbiota, and reversed the reduction of cob(II)yrinate a,c-diamide biosynthesis I pathway in CUMS group. Several species like Bacteroides caecimuris and Parabacteroides distasoni, whose abundance was significantly decreased in the CUMS group but reversed after the probiotics intervention, showed significantly positive correlation with depression associated genes such as Tbxas1 and Cldn2. Discussion: These findings suggested that CUMS-induced depression-like behavior can be alleviated by the probiotics, possibly through alterations in the PFC gene expression and gut microbiota.
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Affiliation(s)
- Jingyi Xu
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Lei Zhou
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Zhaowei Chen
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Yuezhu Wang
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Fang Xu
- The Academician Workstation, Shanghai Fourth People’s Hospital Affiliated to Tongji University, Shanghai, China
| | - Qun Kuang
- Jiangsu Limited Company of Suwei Microbiology, Wuxi, China
| | - Yixuan Zhang
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Huajun Zheng
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
- The Academician Workstation, Shanghai Fourth People’s Hospital Affiliated to Tongji University, Shanghai, China
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32
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Wei JQ, Bai J, Zhou CH, Yu H, Zhang W, Xue F, He H. Electroacupuncture intervention alleviates depressive-like behaviors and regulates gut microbiome in a mouse model of depression. Heliyon 2024; 10:e30014. [PMID: 38699009 PMCID: PMC11064442 DOI: 10.1016/j.heliyon.2024.e30014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 04/07/2024] [Accepted: 04/18/2024] [Indexed: 05/05/2024] Open
Abstract
Electroacupuncture (EA) is a neuroregulatory therapy for depression. Nonetheless, the effects of EA on the gut microbiome in mice models of depression are not well established. Here, using a chronic unpredictable mild stress (CUMS) model in mice, we evaluated the antidepressant effects of EA and changes in gut microbiota with behavioral tests and 16S rRNA gene sequencing. The results found that EA increased the time spent in the center area of the open-field test and the percentage of sucrose preference and reduced the immobility time in the tail suspension test in CUMS-treated mice. Furthermore, the genus Lachnoclostridium, Ruminococcaceae_UCG-002 and Rikenellaceae_RC9_gut_group were enriched in the CUMS group, which was positively correlated with depressive-like behaviors. Whereas phylum Actinobacteria and genus Allobaculum, Bifidobacterium, Dubosiella, Rikenella and Ileibacterium were enriched in the EA and CUMS + EA groups, all of which were negatively correlated with depressive-like behaviors. This study characterizes gut microbiota under EA treatment and provides new insights into the association of anti-depressive-like effects of EA and gut microbiota.
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Affiliation(s)
- Jia-quan Wei
- Department of Psychiatry, Xi'an Gaoxin Hospital, Xi'an, 710077, China
| | - Jie Bai
- Department of Psychiatry, Xi'an Gaoxin Hospital, Xi'an, 710077, China
| | - Cui-hong Zhou
- Department of Psychiatry, Xijing Hospital, Xi'an, 710032, China
| | - Huan Yu
- Department of Psychiatry, Xijing Hospital, Xi'an, 710032, China
| | - Wen Zhang
- Department of Psychiatry, Xi'an Gaoxin Hospital, Xi'an, 710077, China
| | - Fen Xue
- Department of Psychiatry, Xi'an Gaoxin Hospital, Xi'an, 710077, China
| | - Hong He
- Department of Psychiatry, Xi'an Gaoxin Hospital, Xi'an, 710077, China
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Abdelkawy YS, Elharoun M, Sheta E, Abdel-Raheem IT, Nematalla HA. Liraglutide and Naringenin relieve depressive symptoms in mice by enhancing Neurogenesis and reducing inflammation. Eur J Pharmacol 2024; 971:176525. [PMID: 38561101 DOI: 10.1016/j.ejphar.2024.176525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Depression is a debilitating mental disease that negatively impacts individuals' lives and society. Novel hypotheses have been recently proposed to improve our understanding of depression pathogenesis. Impaired neuroplasticity and upregulated neuro-inflammation add-on to the disturbance in monoamine neurotransmitters and therefore require novel anti-depressants to target them simultaneously. Recent reports demonstrate the antidepressant effect of the anti-diabetic drug liraglutide. Similarly, the natural flavonoid naringenin has shown both anti-diabetic and anti-depressant effects. However, the neuro-pharmacological mechanisms underlying their actions remain understudied. The study aims to evaluate the antidepressant effects and neuroprotective mechanisms of liraglutide, naringenin or a combination of both. Depression was induced in mice by administering dexamethasone (32 mcg/kg) for seven consecutive days. Liraglutide (200 mcg/kg), naringenin (50 mg/kg) and a combination of both were administered either simultaneously or after induction of depression for twenty-eight days. Behavioral and molecular assays were used to assess the progression of depressive symptoms and biomarkers. Liraglutide and naringenin alone or in combination alleviated the depressive behavior in mice, manifested by decrease in anxiety, anhedonia, and despair. Mechanistically, liraglutide and naringenin improved neurogenesis, decreased neuroinflammation and comparably restored the monoamines levels to that of the reference drug escitalopram. The drugs protected mice from developing depression when given simultaneously with dexamethasone. Collectively, the results highlight the usability of liraglutide and naringenin in the treatment of depression in mice and emphasize the different pathways that contribute to the pathogenesis of depression.
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Affiliation(s)
- Yara S Abdelkawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour 22514, Egypt
| | - Mona Elharoun
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour 22514, Egypt
| | - Eman Sheta
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria 21131, Egypt
| | - Ihab Talat Abdel-Raheem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour 22514, Egypt
| | - Hisham A Nematalla
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour 22514, Egypt.
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Matsuda Y, Ozawa N, Shinozaki T, Tatebayashi Y, Honda M, Shinba T. Physiological paradigm for assessing reward prediction and extinction using cortical direct current potential responses in rats. Sci Rep 2024; 14:10422. [PMID: 38710727 DOI: 10.1038/s41598-024-59833-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/16/2024] [Indexed: 05/08/2024] Open
Abstract
Anticipating positive outcomes is a core cognitive function in the process of reward prediction. However, no neurophysiological method objectively assesses reward prediction in basic medical research. In the present study, we established a physiological paradigm using cortical direct current (DC) potential responses in rats to assess reward prediction. This paradigm consisted of five daily 1-h sessions with two tones, wherein the rewarded tone was followed by electrical stimulation of the medial forebrain bundle (MFB) scheduled at 1000 ms later, whereas the unrewarded tone was not. On day 1, both tones induced a negative DC shift immediately after auditory responses, persisting up to MFB stimulation. This negative shift progressively increased and peaked on day 4. Starting from day 3, the negative shift from 600 to 1000 ms was significantly larger following the rewarded tone than that following the unrewarded tone. This negative DC shift was particularly prominent in the frontal cortex, suggesting its crucial role in discriminative reward prediction. During the extinction sessions, the shift diminished significantly on extinction day 1. These findings suggest that cortical DC potential is related to reward prediction and could be a valuable tool for evaluating animal models of depression, providing a testing system for anhedonia.
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Affiliation(s)
- Yoshiki Matsuda
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan.
| | - Nobuyuki Ozawa
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan
| | - Takiko Shinozaki
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan
| | - Yoshitaka Tatebayashi
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan
| | - Makoto Honda
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan
| | - Toshikazu Shinba
- Sleep Disorders Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8605, Japan
- Department of Psychiatry, Shizuoka Saiseikai General Hospital, 1-1-1 Oshika, Suruga-ku, Shizuoka, 422-8527, Japan
- Research Division, Saiseikai Research Institute of Health Care and Welfare, 21F Mita-Kokusai Building, 1-4-28 Mita, Minato-ku, Tokyo, 108-0073, Japan
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35
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Song N, Liu Z, Gao Y, Lu S, Yang S, Yuan C. NAc-DBS corrects depression-like behaviors in CUMS mouse model via disinhibition of DA neurons in the VTA. Mol Psychiatry 2024; 29:1550-1566. [PMID: 38361128 DOI: 10.1038/s41380-024-02476-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/17/2024]
Abstract
Major depressive disorder (MDD) is characterized by diverse debilitating symptoms that include loss of motivation and anhedonia. If multiple medications, psychotherapy, and electroconvulsive therapy fail in some patients with MDD, their condition is then termed treatment-resistant depression (TRD). MDD can be associated with abnormalities in the reward-system-dopaminergic mesolimbic pathway, in which the nucleus accumbens (NAc) and ventral tegmental area (VTA) play major roles. Deep brain stimulation (DBS) applied to the NAc alleviates the depressive symptoms of MDD. However, the mechanism underlying the effects of this DBS has remained elusive. In this study, using the chronic unpredictable mild stress (CUMS) mouse model, we investigated the behavioral and neurobiological effects of NAc-DBS on the multidimensional depression-like phenotypes induced by CUMS by integrating behavioral, in vivo microdialysis coupled with high-performance liquid chromatography-electrochemical detector (HPLC-ECD), calcium imaging, pharmacological, and genetic manipulation methods in freely moving mice. We found that long-term and repeated, but not single, NAc-DBS induced robust antidepressant responses in CUMS mice. Moreover, even a single trial NAc-DBS led to the elevation of the γ-aminobutyric acid (GABA) neurotransmitter, accompanied by the increase in dopamine (DA) neuron activity in the VTA. Both the inhibition of the GABAA receptor activity and knockdown of the GABAA-α1 gene in VTA-GABA neurons blocked the antidepressant effect of NAc-DBS in CUMS mice. Our results showed that NAc-DBS could disinhibit VTA-DA neurons by regulating the level of GABA and the activity of VTA-GABA in the VTA and could finally correct the depression-like behaviors in the CUMS mouse model.
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Affiliation(s)
- Nan Song
- Center of Cognition and Brain Science, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China.
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China.
| | - Zhenhong Liu
- Institute for Brain Disorders, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China.
| | - Yan Gao
- Center of Cognition and Brain Science, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China
| | - Shanshan Lu
- Center of Cognition and Brain Science, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China
| | - Shenglian Yang
- Center of Cognition and Brain Science, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China
| | - Chao Yuan
- Center of Cognition and Brain Science, Beijing Institute of Basic Medical Sciences, Beijing, 100850, China
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Silva S, Bicker J, Fialho S, Cunha S, Falcão A, Fortuna A. Intranasal delivery of paroxetine: A preclinical study on pharmacokinetics, depressive-like behaviour, and neurochemical sex differences. Biochem Pharmacol 2024; 223:116184. [PMID: 38556027 DOI: 10.1016/j.bcp.2024.116184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/09/2024] [Accepted: 03/29/2024] [Indexed: 04/02/2024]
Abstract
Treatment of major depressive disorder remains a major unmet clinical need. Given the advantages of intranasal administration for targeted brain delivery, the present study aimed at investigating the pharmacokinetics of paroxetine, after its intranasal instillation and assessing its potential therapeutic effect on female and male mice subjected to unpredictable chronic mild stress (UCMS) protocol. IN administration revealed direct nose-to-brain paroxetine delivery but dose- and sex-dependent differences. Pharmacokinetics was nonlinear and paroxetine concentrations were consistently higher in plasma and brain of male mice. Additionally, UCMS decreased animal preference for sucrose in both male and female mice following acute (p < 0.01) and chronic stress (p < 0.05), suggesting anhedonia. Both male and female mice exhibited depressive-like behavior in the forced swimming test. UCMS females displayed a significantly longer immobility time and shorter climbing time than the control group (p < 0.05), while no differences were found between male mice. Two weeks of paroxetine intranasal administration reduced immobility time and lengthened climbing and swimming time, approaching values similar to those observed in the healthy control group. The therapeutic effect was stronger on female mice. Importantly, melatonin plasma levels were significantly decreased in female mice following UCMS (p < 0.05), while males exhibited heightened corticosterone levels. On the other hand, treatment with IN paroxetine significantly increased corticosterone and melatonin levels in both sexes compared to healthy mice (p < 0.05). Intranasal paroxetine delivery undoubtedly ameliorated the behavioral despair, characteristic of depressive-like animals. Despite its efficiency in male and female mice subjected to UCMS, females were more prone to this novel therapeutic strategy.
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Affiliation(s)
- Soraia Silva
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, Coimbra, Portugal
| | - Joana Bicker
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, Coimbra, Portugal
| | - S Fialho
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Susana Cunha
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Amílcar Falcão
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, Coimbra, Portugal
| | - Ana Fortuna
- Laboratory of Pharmacology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, Coimbra, Portugal.
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Xiao Y, Chen Y, Huang S, He H, Hu N, Lin S, You Z. The reduction of microglial efferocytosis is concomitant with depressive-like behavior in CUMS-treated mice. J Affect Disord 2024; 352:76-86. [PMID: 38360363 DOI: 10.1016/j.jad.2024.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Microglial efferocytosis plays a crucial role in facilitating and sustaining homeostasis in the central nervous system, and it is involved in neuropsychiatric disorders. How microglial efferocytosis is affected under the condition of major depressive disorder (MDD) remains elusive. In this study, we hypothesized that microglial efferocytosis in the hippocampus is impaired in the chronic unpredicted mild stress (CUMS) model of MDD, which is involved in the development of MDD. METHOD Depressive-like behavior in adult male mice was induced by CUMS and confirmed by behavioral tests. Microglial efferocytosis was evaluated using immunofluorescence staining of hippocampal slices and primary microglia co-cultured with apoptotic cells. The protein and mRNA levels of phagocytosis-related molecules and inflammation-related cytokines were detected using western blotting and RT-qPCR, respectively. Annexin V was injected to mimic impairment of microglial efferocytosis. TREM2-siRNA was further used on primary microglia to examine efferocytosis-related signaling pathways. RESULTS Microglia were activated and the expression of proinflammatory cytokines was increased in CUMS mice, while microglial efferocytosis and efferocytosis-related molecules were decreased. Inhibition of the TREM2/Rac1 pathway impaired microglial efferocytosis. Annexin V injection inhibited microglial efferocytosis, increased inflammation in the hippocampus and depressive-like behavior. LIMITATIONS The potential antidepressant effect of the upregulation of the TREM2/Rac1 pathway was not evaluated. CONCLUSIONS Impairment of microglial efferocytosis is involved in the development of depressive-like behavior, with downregulation of the TREM2/Rac1 pathway and increased inflammation. These results may increase our understanding of the pathophysiological mechanisms associated with MDD and provide novel targets for therapeutic interventions.
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Affiliation(s)
- Ying Xiao
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China; Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
| | - Yuxiang Chen
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Shiqi Huang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hui He
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Nan Hu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Shanyu Lin
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Zili You
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China.
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38
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Richards JH, Freeman DD, Detloff MR. Myeloid Cell Association with Spinal Cord Injury-Induced Neuropathic Pain and Depressive-like Behaviors in LysM-eGFP Mice. THE JOURNAL OF PAIN 2024; 25:104433. [PMID: 38007034 PMCID: PMC11058038 DOI: 10.1016/j.jpain.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/10/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Spinal cord injury (SCI) affects ∼500,000 people worldwide annually, with the majority developing chronic neuropathic pain. Following SCI, approximately 60% of these individuals are diagnosed with comorbid mood disorders, while only ∼21% of the general population will experience a mood disorder in their lifetime. We hypothesize that nociceptive and depressive-like dysregulation occurs after SCI and is associated with aberrant macrophage infiltration in segmental pain centers. We completed moderate unilateral C5 spinal cord contusion on LysM-eGFP reporter mice to visualize infiltrating macrophages. At 6-weeks post-SCI, mice exhibit nociceptive and depressive-like dysfunction compared to naïve and sham groups. There were no differences between the sexes, indicating that sex is not a contributing factor driving nociceptive or depressive-like behaviors after SCI. Utilizing hierarchical cluster analysis, we classified mice based on endpoint nociceptive and depressive-like behavior scores. Approximately 59.3% of the SCI mice clustered based on increased paw withdrawal threshold to mechanical stimuli and immobility time in the forced swim test. SCI mice displayed increased myeloid cell presence in the lesion epicenter, ipsilateral C7-8 dorsal horn, and C7-8 DRGs as evidenced by eGFP, CD68, and Iba1 immunostaining when compared to naïve and sham mice. This was further confirmed by SCI-induced alterations in the expression of genes indicative of myeloid cell activation states and their associated secretome in the dorsal horn and dorsal root ganglia. In conclusion, moderate unilateral cervical SCI caused the development of pain-related and depressive-like behaviors in a subset of mice and these behavioral changes are consistent with immune system activation in the segmental pain pathway. PERSPECTIVE: These experiments characterized pain-related and depressive-like behaviors and correlated these changes with the immune response post-SCI. While humanizing the rodent is impossible, the results from this study inform clinical literature to closely examine sex differences reported in humans to better understand the underlying shared etiologies of pain and depressive-like behaviors following central nervous system trauma.
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Affiliation(s)
- Jonathan H. Richards
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
| | - Daniel D. Freeman
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
| | - Megan Ryan Detloff
- Department of Neurobiology & Anatomy, Marion Murray Spinal Cord Research Center, College of Medicine, Drexel University, 2900 W. Queen Lane, Philadelphia, PA 19129
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Niwa M, Lockhart S, Wood DJ, Yang K, Francis-Oliveira J, Kin K, Ahmed A, Wand GS, Kano SI, Payne JL, Sawa A. Prolonged HPA axis dysregulation in postpartum depression associated with adverse early life experiences: A cross-species translational study. NATURE. MENTAL HEALTH 2024; 2:593-604. [PMID: 38736646 PMCID: PMC11087073 DOI: 10.1038/s44220-024-00217-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 02/21/2024] [Indexed: 05/14/2024]
Abstract
Childhood and adolescent stress increase the risk of postpartum depression (PPD), often providing an increased probability of treatment refractoriness. Nevertheless, the mechanisms linking childhood/adolescent stress to PPD remain unclear. Our study investigated the longitudinal effects of adolescent stress on the hypothalamic-pituitary-adrenal (HPA) axis and postpartum behaviors in mice and humans. Adolescent social isolation prolonged glucocorticoid elevation, leading to long-lasting postpartum behavioral changes in female mice. These changes were unresponsive to current PPD treatments but improved with post-delivery glucocorticoid receptor antagonist treatment. Childhood/adolescent stress significantly impacted HPA axis dysregulation and PPD in human females. Repurposing glucocorticoid receptor antagonists for some cases of treatment-resistant PPD may be considered.
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Affiliation(s)
- Minae Niwa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
- Department of Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
- Department of Biomedical Engineering, University of Alabama at Birmingham School of Engineering, Birmingham, AL, USA
| | - Sedona Lockhart
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Daniel J. Wood
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kun Yang
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jose Francis-Oliveira
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Kyohei Kin
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Adeel Ahmed
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Gary S. Wand
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shin-ichi Kano
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
- Department of Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Jennifer L. Payne
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlotte, VA, USA
| | - Akira Sawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Mental Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
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40
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Pingale TD, Gupta GL. Oleanolic acid-based therapeutics ameliorate rotenone-induced motor and depressive behaviors in parkinsonian male mice via controlling neuroinflammation and activating Nrf2-BDNF-dopaminergic signaling pathways. Toxicol Mech Methods 2024; 34:335-349. [PMID: 38084769 DOI: 10.1080/15376516.2023.2288198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/21/2023] [Indexed: 04/20/2024]
Abstract
Parkinson's disease (PD) is often accompanied by depression, which may appear before motor signs. Oleanolic acid (OA), a pentacyclic triterpenoid substance, have many pharmacological properties. However, its efficacy in treating PD-related chronic unpredictable stress (CUS) is unknown. Our study used behavioral, biochemical, and immunohistochemical techniques to assess how OA affected PDrelated CUS. Rotenone (1 mg/kg i.p. for first 21 days) was used to induce Parkinsonism, and modest psychological & environmental stresses generated CUS (from day 22 to day 43) in animals. The study included daily i.p.administration of OA (5, 10, and 20 mg/kg) from day 1 to day 57 in male swiss albino mice. Animals were evaluated for behavioral, biochemical parameters, neurotransmitters, and immunohistochemical expression following the treatment. Results of the study revealed that treatment with OA at all doses alleviated the core symptoms of CUS linked to PD and improved motor and non-motor function. OA therapy significantly lowered IL-1β, TNF-α (p < 0.01, < 0.01, < 0.001), IL-6 (p < 0.05, < 0.01, < 0.001), oxidative stress (p < 0.05, < 0.01, < 0.01), and elevated norepinephrine (p < 0.05, < 0.01, < 0.01), dopamine, and serotonin (p < 0.05, < 0.01, < 0.001) levels. Moreover, OA therapy substantially reduced α-synuclein (p < 0.05, < 0.01, < 0.01) aggregation and increased BDNF (p < 0.05, < 0.01, < 0.001) & Nrf-2 (p < 0.05, < 0.01, < 0.01) levels, which boosts neuronal dopamine survival. The study's findings indicated that OA ameliorates depressive-like behavior persuaded by CUS in PD, decreases neuroinflammation, and improves neurotransmitter concentration via activating Nrf2-BDNF-dopaminergic pathway.
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Affiliation(s)
- Tanvi Dayanand Pingale
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS, Vile Parle (W), Mumbai India
| | - Girdhari Lal Gupta
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM'S NMIMS, Vile Parle (W), Mumbai India
- Department of Pharmacology, School of Pharmacy & Technology Management, SVKM'S Narsee Monjee Institute of Management Studies, Shirpur India
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41
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Ma H, Deng J, Liu J, Jin X, Yang J. Daytime aspartame intake results in larger influences on body weight, serum corticosterone level, serum/cerebral cytokines levels and depressive-like behaviors in mice than nighttime intake. Neurotoxicology 2024; 102:37-47. [PMID: 38499183 DOI: 10.1016/j.neuro.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 11/25/2023] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Aspartame (APM) is one of the most widely used artificial sweeteners worldwide. Studies have revealed that consuming APM may negatively affect the body, causing oxidative stress damage to multiple organs and leading to various neurophysiological symptoms. However, it's still unclear if consuming APM and one's daily biological rhythm have an interactive effect on health. In this study, healthy adult C57BL/6 mice were randomly divided into four groups: Control group (CON), oral gavage sham group (OGS), daytime APM intragastric group (DAI) and nighttime APM intragastric group (NAI). DAI and NAI groups were given 80 mg/kg body weight daily for 4 weeks. We found that DAI and NAI groups had significantly increased mean body weight, higher serum corticosterone levels, up-regulated pro-inflammatory responses in serum and brain, and exacerbated depressive-like behaviors than the CON and the two APM intake groups. Moreover, all these changes induced by APM intake were more significant in the DAI group than in the NAI group. The present study, for the first time, revealed that the intake of APM and daily biological rhythm have an interactive effect on health. This suggests that more attention should be paid to the timing of APM intake in human beings, and this study also provides an intriguing clue to the circadian rhythms of experimental animals that researchers should consider more when conducting animal experiments.
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Affiliation(s)
- Haiyuan Ma
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiapeng Deng
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jing Liu
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaobao Jin
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Junhua Yang
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Regniez M, Dufort-Gervais J, Provost C, Mongrain V, Martinez M. Characterization of Sleep, Emotional, and Cognitive Functions in a New Rat Model of Concomitant Spinal Cord and Traumatic Brain Injuries. J Neurotrauma 2024; 41:1044-1059. [PMID: 37885242 DOI: 10.1089/neu.2023.0387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
Traumatic injuries to the spinal cord or the brain have serious medical consequences and lead to long-term disability. The epidemiology, medical complications, and prognosis of isolated spinal cord injury (SCI) and traumatic brain injury (TBI) have been well described. However, there are limited data on patients suffering from concurrent SCI and TBI, even if a large proportion of SCI patients have concomitant TBI. The complications associated with this "dual-diagnosis" such as cognitive or behavioral dysfunction are well known in the rehabilitation setting, but evidence-based and standardized approaches for diagnosis and treatment are lacking. Our goal was to develop and characterize a pre-clinical animal model of concurrent SCI and TBI to help identifying "dual-diagnosis" tools. Female rats received a unilateral contusive SCI at the thoracic level alone (SCI group) or combined with a TBI centered on the contralateral sensorimotor cortex (SCI-TBI group). We first validated that the SCI extent was comparable between SCI-TBI and SCI groups, and that hindlimb function was impaired. We characterized various neurological outcomes, including locomotion, sleep architecture, brain activity during sleep, depressive- and anxiety-like behaviors, and working memory. We report that SCI-TBI and SCI groups show similar impairments in global locomotor function. While wake/sleep amount and distribution and anxiety- and depression-like symptoms were not affected in SCI-TBI and SCI groups in comparison to the control group (laminectomy and craniotomy only), working memory was impaired only in SCI-TBI rats. This pre-clinical model of concomitant SCI and TBI, including more severe variations of it, shows a translational value for the identification of biomarkers to refine the "dual-diagnosis" of neurotrauma in humans.
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Affiliation(s)
- Morgane Regniez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
| | | | | | - Valérie Mongrain
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Research Center of the CHUM, Montréal, Québec, Canada
| | - Marina Martinez
- Department of Neuroscience, Université de Montreal, Montréal, Québec, Canada
- Recherche CIUSSS-NIM, Montréal, Québec, Canada
- Groupe de recherche sur la Signalisation Neurale et la Circuiterie, Université de Montreal, Montréal, Québec, Canada
- Centre interdisciplinaire de recherche sur le cerveau et l'apprentissage, Université de Montreal, Montréal, Québec, Canada
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de Oliveira-Júnior BA, Marques DB, Rossignoli MT, Prizon T, Leite JP, Ruggiero RN. Multidimensional behavioral profiles associated with resilience and susceptibility after inescapable stress. Sci Rep 2024; 14:9699. [PMID: 38678053 PMCID: PMC11055923 DOI: 10.1038/s41598-024-59984-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/17/2024] [Indexed: 04/29/2024] Open
Abstract
Clinical depression is characterized by multiple concurrent symptoms, manifesting as a complex heterogeneous condition. Although some well-established classical behavioral assessments are widespread in rodent models, it remains uncertain whether rats also display stress-induced depression-related phenotypes in a multidimensional manner, i.e., simultaneous alterations in multiple behavioral tests. Here, we investigated multivariate patterns and profiles of depression-related behavioral traits in male Wistar rats subjected to inescapable footshocks (IS) or no-shocks (NS), followed by a comprehensive battery of behavioral tests and ethological characterization. We observed generalized stronger intra-test but weaker inter-test correlations. However, feature clustering of behavioral measures successfully delineated variables linked to resilience and susceptibility to stress. Accordingly, a noteworthy covariation pattern emerged, characterized by increased open field locomotion, reduced time in the elevated plus maze open arms, lower sucrose preference, and increased shuttle box escape failures that consistently differentiated IS from NS. Surprisingly there is little contribution from forced swim. In addition, individual clustering revealed a diversity of behavioral profiles, naturally separating NS and IS, including subpopulations entirely characterized by resilience or susceptibility. In conclusion, our study elucidates intricate relationships among classical depression-related behavioral measures, highlighting multidimensional individual variability. Our work emphasizes the importance of a multivariate framework for behavioral assessment in animal models to understand stress-related neuropsychiatric disorders.
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Affiliation(s)
- Benedito Alves de Oliveira-Júnior
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Danilo Benette Marques
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Matheus Teixeira Rossignoli
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Tamiris Prizon
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - João Pereira Leite
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rafael Naime Ruggiero
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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Chen S, Li J, Yan L, Zhang X, Huang J, Zhou P. Electroacupuncture alleviates the symptom of depression in mice by regulating the cGAS-STING-NLRP3 signaling. Aging (Albany NY) 2024; 16:6731-6744. [PMID: 38643466 PMCID: PMC11087112 DOI: 10.18632/aging.205596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/13/2023] [Indexed: 04/22/2024]
Abstract
PURPOSE To investigate the therapeutic effect of electroacupuncture (EA) on chronic and unpredictable mild stress (CUMS)-induced depression in mice and the underlying mechanism. METHODS Male C57BL/6 mice were randomly divided into 6 groups: Control, CUMS, CUMS+EA-placebo, CUMS+EA, CUMS+ ad-NC, CUMS+ ad-cGAS-shRNA. CUMS was utilized to establish the depression model in mice. The behavioral changes were determined by the forced swimming, open field, and sucrose preference experiments. The pathological changes in the hippocampus tissue were evaluated by HE staining. The release of TNF-α, IL-1β, IL-6, 5-HT, and NE in the hippocampus tissue was determined by ELISA. IBA-1 expression detected by the immunofluorescence was used to represent the activity of microglia. Western blot and RT-PCR were utilized to measure the expression of Bax, bcl-2, cGAS, STING, TBK1, IRF3, and NLRP3. RESULTS The depression behavior in CUMS mice was significantly alleviated by the treatment of EA and cGAS-shRNA, accompanied by ameliorated hippocampus pathological changes, declined production of TNF-α, IL-1β, and IL-6, elevated secretion of 5-HT and NE, and inhibition on the activity of microglia. Furthermore, significantly elevated expression level of Bax, cGAS, STING, TBK1, IRF3, and NLRP3 and declined expression level of bcl-2 were observed in the CUMS+EA and CUMS+ ad-cGAS-shRNA groups. CONCLUSIONS EA significantly mitigated the symptom of depression in mice, which was closely associated with the repressed neuroinflammation, increased monoamine concentration, inactivated microglia, and inhibited cGAS-STING-NLRP3 signaling.
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Affiliation(s)
- Shiyun Chen
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
| | - Jingjing Li
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
| | - Luda Yan
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
| | - Xianhao Zhang
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
| | - Jiesi Huang
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
| | - Peng Zhou
- Department of Acupuncture, Shenzhen Bao’an Traditional Chinese Medicine Hospital, Bao’an, Shenzhen, Guangdong Province, China
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Kumari R, Verma V, Singaravel M. Simulated Chronic Jet Lag Affects the Structural and Functional Complexity of Hippocampal Neurons in Mice. Neuroscience 2024; 543:1-12. [PMID: 38354900 DOI: 10.1016/j.neuroscience.2024.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 12/21/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
There has been a long history that chronic circadian disruption such as jet lag or shift work negatively affects brain and body physiology. Studies have shown that circadian misalignment act as a risk factor for developing anxiety and mood-related depression-like behavior. Till date, most studies focused on simulating jet lag in model animals under laboratory conditions by repeated phase advances or phase delay only, while the real-life conditions may differ. In the present study, adult male mice were subjected to simulated chronic jet lag (CJL) by alternately advancing and delaying the ambient light-dark (LD) cycle by 9 h every 2 days, thereby covering a total of 24 days. The effect of CJL was then examined for a range of stress and depression-related behavioral and physiological responses. The results showed that mice exposed to CJL exhibited depression-like behavior, such as anhedonia. In the open field and elevated plus maze test, CJL-exposed mice showed increased anxiety behavior compared to LD control. In addition, CJL-exposed mice showed an increased level of serum corticosterone and proinflammatory cytokine, TNF-α in both serum and hippocampus. Moreover, CJL-exposed mice exhibited a reduction in structural complexity of hippocampal CA1 neurons along with decreased expression of neurotrophic growth factors, BDNF and NGF in the hippocampus compared to LD control. Taken together, our findings suggest that simulated chronic jet lag adversely affects structural and functional complexity in hippocampal neurons along with interrelated endocrine and inflammatory responses, ultimately leading to stress, anxiety, and depression-like behavior in mice.
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Affiliation(s)
- Ruchika Kumari
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Vivek Verma
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Muniyandi Singaravel
- Chronobiology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.
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Lu S, Ge Q, Yang M, Zhuang Y, Xu X, Niu F, Liu B, Tian R. Decoupling the mutual promotion of inflammation and oxidative stress mitigates cognitive decline and depression-like behavior in rmTBI mice by promoting myelin renewal and neuronal survival. Biomed Pharmacother 2024; 173:116419. [PMID: 38479178 DOI: 10.1016/j.biopha.2024.116419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND Repetitive mild traumatic brain injury (rmTBI) can lead to somatic, emotional, and cognitive symptoms that persist for years after the initial injury. Although the ability of various treatments to promote recovery after rmTBI has been explored, the optimal time window for early intervention after rmTBI is unclear. Previous research has shown that hydrogen-rich water (HRW) can diffuse through the blood-brain - barrier, attenuate local oxidative stress, and reduce neuronal apoptosis in patients with severe traumatic brain injury. However, research on the effect of HRW on rmTBI is scarce. AIMS The objectives of this study were to explore the following changes after rmTBI and HRW treatment: (i) temporal changes in inflammasome activation and oxidative stress-related protein expression through immunoblotting, (ii) temporal changes in neuron/myelin-related metabolite concentrations in vivo through magnetic resonance spectroscopy, (iii) myelin structural changes in late-stage rmTBI via immunofluorescence, and (iv) postinjury anxiety/depression-like behaviors and spatial learning and memory impairment. RESULTS NLRP-3 expression in the rmTBI group was elevated at 7 and 14 DPI, and inflammasome marker levels returned to normal at 30 DPI. Oxidative stress persisted throughout the first month postinjury. HRW replacement significantly decreased Nrf2 expression in the prefrontal cortex and hippocampal CA2 region at 14 and 30 DPI, respectively. Edema and local gliosis in the hippocampus and restricted diffusion in the thalamus were observed on MR-ADC images. The tCho/tCr ratio in the rmTBI group was elevated, and the tNAA/tCr ratio was decreased at 30 DPI. Compared with the mice in the other groups, the mice in the rmTBI group spent more time exploring the open arms in the elevated plus maze (P < 0.05) and were more active in the maze (longer total distance traveled). In the sucrose preference test, the rmTBI group exhibited anhedonia. In the Morris water maze test, the latency to find the hidden platform in the rmTBI group was longer than that in the sham and HRW groups (P < 0.05). CONCLUSION Early intervention with HRW can attenuate inflammasome assembly and reduce oxidative stress after rmTBI. These changes may restore local oligodendrocyte function, promote myelin repair, prevent axonal damage and neuronal apoptosis, and alleviate depression-like behavior and cognitive impairment.
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Affiliation(s)
- Shenghua Lu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - QianQian Ge
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - MengShi Yang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yuan Zhuang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Xiaojian Xu
- Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Fei Niu
- Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Baiyun Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China; Center for Nerve Injury and Repair, Beijing Institute of Brain Disorders, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China.
| | - Runfa Tian
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China; Center for Nerve Injury and Repair, Beijing Institute of Brain Disorders, Beijing, China; China National Clinical Research Center for Neurological Diseases, Beijing, China.
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Gencturk S, Unal G. Rodent tests of depression and anxiety: Construct validity and translational relevance. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2024; 24:191-224. [PMID: 38413466 PMCID: PMC11039509 DOI: 10.3758/s13415-024-01171-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/03/2024] [Indexed: 02/29/2024]
Abstract
Behavioral testing constitutes the primary method to measure the emotional states of nonhuman animals in preclinical research. Emerging as the characteristic tool of the behaviorist school of psychology, behavioral testing of animals, particularly rodents, is employed to understand the complex cognitive and affective symptoms of neuropsychiatric disorders. Following the symptom-based diagnosis model of the DSM, rodent models and tests of depression and anxiety focus on behavioral patterns that resemble the superficial symptoms of these disorders. While these practices provided researchers with a platform to screen novel antidepressant and anxiolytic drug candidates, their construct validity-involving relevant underlying mechanisms-has been questioned. In this review, we present the laboratory procedures used to assess depressive- and anxiety-like behaviors in rats and mice. These include constructs that rely on stress-triggered responses, such as behavioral despair, and those that emerge with nonaversive training, such as cognitive bias. We describe the specific behavioral tests that are used to assess these constructs and discuss the criticisms on their theoretical background. We review specific concerns about the construct validity and translational relevance of individual behavioral tests, outline the limitations of the traditional, symptom-based interpretation, and introduce novel, ethologically relevant frameworks that emphasize simple behavioral patterns. Finally, we explore behavioral monitoring and morphological analysis methods that can be integrated into behavioral testing and discuss how they can enhance the construct validity of these tests.
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Affiliation(s)
- Sinem Gencturk
- Behavioral Neuroscience Laboratory, Department of Psychology, Boğaziçi University, 34342, Istanbul, Turkey
| | - Gunes Unal
- Behavioral Neuroscience Laboratory, Department of Psychology, Boğaziçi University, 34342, Istanbul, Turkey.
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Luc OT, Kangas BD. Validation of a touchscreen probabilistic reward task for mice: A reverse-translated assay with cross-species continuity. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2024; 24:281-288. [PMID: 37770642 DOI: 10.3758/s13415-023-01128-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/06/2023] [Indexed: 09/30/2023]
Abstract
The Probabilistic Reward Task (PRT) is a laboratory-based technique used to objectively quantify responsivity to reward. The PRT was initially designed to identify reinforcement learning deficits in clinical populations and subsequently was reverse-translated for use in preclinical studies with rats and monkeys. In this task, subjects make visual discriminations and asymmetric probabilistic contingencies are arranged such that correct responses to one stimulus (rich) are reinforced more often than correct responses to the other (lean). Numerous studies have demonstrated that healthy subjects reliably develop a response bias toward the richly rewarded stimulus, whereas humans with anhedonia and laboratory animals with a history of chronic stress exhibit a blunted response bias. This is important because anhedonia, the loss of responsivity to previously rewarding stimuli, is a behavioral phenotype that is a cardinal feature of multiple neuropsychiatric conditions and is without approved pharmacotherapeutic options. To aid in addressing this critical treatment gap, this report describes validation of the first PRT designed for mice, which are a commonly utilized species in preclinical research toward neuropsychiatric medications development. Results reveal orderly psychophysical functions in response to asymmetric probabilistic contingencies in mice, with signal detection outcomes comparable to previous PRT findings in humans, rats, and monkeys. Taken together, such robust cross-species continuity in task performance confirms that the mouse is well-positioned to serve in bidirectional research efforts between human and animal laboratories. These efforts may accelerate the development of treatment options for anhedonia in the different neuropsychiatric conditions in which it is prominent.
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Affiliation(s)
- Oanh T Luc
- Harvard Medical School, McLean Hospital, 115 Mill Street, Belmont, MA, 02478, USA
| | - Brian D Kangas
- Harvard Medical School, McLean Hospital, 115 Mill Street, Belmont, MA, 02478, USA.
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Lago MW, Marques LS, Jung JTK, Felipeto V, Nogueira CW. A high salt intake in early life affects stress-coping response in males but not in female rats. Physiol Behav 2024; 277:114498. [PMID: 38367943 DOI: 10.1016/j.physbeh.2024.114498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Eating diets high in salt has been associated with alterations in the immune system and the potential development of neuropsychiatric disorders. This area of research shows promise, but there is currently a limited amount of research on this topic. The present study investigated whether a high salt diet (HSD) affects anhedonia and stress-coping response behaviors in young male and female Wistar rats. In this study, male and female Wistar rats were fed an HSD (8 % NaCl w/w) from weaning to post-natal day (PND) 64. From PND 60 to 64, the rats underwent a spontaneous locomotor activity test (SLA), sucrose splash test (SST), sucrose preference test (SPT), and forced swim test (FST), followed by euthanasia at PND 65. Male and female rats consuming the HSD exhibited an increase in water intake compared to the corresponding control diet (CD) groups. Male rats had lower body weight despite having similar food intakes compared to the CD group. Male rats displayed an active stress-coping behavior in the FST, characterized by increased mobility. Additionally, HSD-fed males exhibited a greater preference for sucrose solution in the SPT. However, no effect of diet and sex were detected in the SST and the SLA, and hypothalamic levels of leptin and ghrelin receptors. On the other hand, female rats were less susceptible to the experimental conditions applied in this protocol than males.
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Affiliation(s)
- M W Lago
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - L S Marques
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - Juliano T K Jung
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - V Felipeto
- Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - C W Nogueira
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil.
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Ozdamar Unal G, Kumbul D, Hekimler Ozturk K, Erkılınc G, Donmez F, Dogan Kıran E, Yuceer RO. The effect of Vortioxetine on the NLRP3 pathway and microglial activity in the prefrontal cortex in an experimental model of depression. Immunopharmacol Immunotoxicol 2024; 46:264-275. [PMID: 38284357 DOI: 10.1080/08923973.2024.2308268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Increasing evidence suggests that early life stress (ELS) and neuroinflammation are associated with the pathophysiology of depression. The purpose of this study was to determine the effects of Vortioxetine (VOR), a novel antidepressant, on ELS-induced behavioral changes and neuroinflammation. METHOD Wistar Albino 4-week-old male rats were divided into four groups: control; chronic unpredictable stress (CUMS), VOR, CUMS + VOR. Neurobehavioral assessment was performed on the first, 21st, and 42nd days. RT-PCR was used to detect the expression of P2X7, NLRP3, IL1β, IL18 in the prefrontal cortex. To assess the microglial activities of the prefrontal cortex, immunohistochemically stained CD68, and leukocyte common antigen (LCA) preparations were scanned with Manual WSI software, Basler camera, and scored. RESULT AND DISCUSSION Exposure to CUMS was associated with depression and anxiety-like behaviors, and administration of VOR led to improvement in these behaviors. NLRP3, IL-1β, and IL-18 were shown to be upregulated in the prefrontal cortex of CUMS rats, while their high expression was inhibited by VOR treatment. CD68 and LCA expressions were significantly higher in the CUMS group compared to the other groups. CONCLUSION According to these results, it may be considered that NLRP3 inflammasome-associated neuroinflammatory response and microglial activation may play a role in the etiopathogenesis of ELS.
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Affiliation(s)
- Gulin Ozdamar Unal
- Department of Psychiatry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Duygu Kumbul
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Kuyas Hekimler Ozturk
- Department of Medical Genetics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Gamze Erkılınc
- Department of Pathology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Feyza Donmez
- Department of Psychiatry, Kutahya Health Sciences University Research Information System, Kutahya, Turkey
| | - Eltaf Dogan Kıran
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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