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Saengmearnuparp T, Pintana H, Apaijai N, Chunchai T, Thonusin C, Kongkaew A, Lojanapiwat B, Chattipakorn N, Chattipakorn SC. Long-term Treatment with a 5-Alpha-Reductase Inhibitor AlleviatesDepression-like Behavior in Obese Male Rats. Behav Brain Res 2024:115155. [PMID: 39032869 DOI: 10.1016/j.bbr.2024.115155] [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: 05/09/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Several studies have reported side effects of finasteride (FIN), such as anxiety/depression in young men. Obesity is also positively associated with anxiety/depression symptoms; however, the impacts of long-term FIN treatment and FIN withdrawal in young obese individuals are still elusive. The present study aimed to investigate the effect of long-term treatment and its withdrawal on anxiety/depression and brain pathologies in lean and obese adult male rats. Forty-eight male Wistar rats were equally divided into two groups and fed either a normal or high-fat diet. At age 13 weeks, rats in each dietary group were divided into three subgroups: 1) the control group receiving drinking water, 2) the long-term treatment group receiving FIN orally at 5mg/kg/day for 6 weeks, and 3) the withdrawal group receiving FIN orally at 5mg/kg/day for 2 weeks followed by a 4-week withdrawal period. Anxiety/depression-like behaviors, biochemical analysis, brain inflammation, oxidative stress, neuroactive steroids, brain metabolites, and microglial complexity were tested. The result showed that lean rats treated with long-term FIN and its withdrawal exhibited metabolic disturbances, depressive-like behavior, and both groups showed increased neurotoxic metabolites and reduced microglial complexity. Obesity itself led to metabolic disturbances and brain pathologies, including increased inflammation, oxidative stress, and quinolinic acid, as well as reduced microglial complexity, resulting in increased anxiety- and depression-like behaviors. Interestingly, the long-term FIN treatment group in obese rats showed attenuation of depressive-like behaviors, brain inflammation, and oxidative stress, along with increased brain antioxidants, suggesting the possible benefits of FIN in obese conditions.
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Affiliation(s)
- Thiraphat Saengmearnuparp
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Urology division, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Hiranya Pintana
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200; Office of Research Administration, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Nattayaporn Apaijai
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Titikorn Chunchai
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Chanisa Thonusin
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Aphisek Kongkaew
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Bannakij Lojanapiwat
- Urology division, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200
| | - Nipon Chattipakorn
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200.
| | - Siriporn C Chattipakorn
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, 50200; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand, 50200; Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand, 50200.
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Nicosia N, Giovenzana M, Misztak P, Mingardi J, Musazzi L. Glutamate-Mediated Excitotoxicity in the Pathogenesis and Treatment of Neurodevelopmental and Adult Mental Disorders. Int J Mol Sci 2024; 25:6521. [PMID: 38928227 PMCID: PMC11203689 DOI: 10.3390/ijms25126521] [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: 05/17/2024] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Glutamate is the main excitatory neurotransmitter in the brain wherein it controls cognitive functional domains and mood. Indeed, brain areas involved in memory formation and consolidation as well as in fear and emotional processing, such as the hippocampus, prefrontal cortex, and amygdala, are predominantly glutamatergic. To ensure the physiological activity of the brain, glutamatergic transmission is finely tuned at synaptic sites. Disruption of the mechanisms responsible for glutamate homeostasis may result in the accumulation of excessive glutamate levels, which in turn leads to increased calcium levels, mitochondrial abnormalities, oxidative stress, and eventually cell atrophy and death. This condition is known as glutamate-induced excitotoxicity and is considered as a pathogenic mechanism in several diseases of the central nervous system, including neurodevelopmental, substance abuse, and psychiatric disorders. On the other hand, these disorders share neuroplasticity impairments in glutamatergic brain areas, which are accompanied by structural remodeling of glutamatergic neurons. In the current narrative review, we will summarize the role of glutamate-induced excitotoxicity in both the pathophysiology and therapeutic interventions of neurodevelopmental and adult mental diseases with a focus on autism spectrum disorders, substance abuse, and psychiatric disorders. Indeed, glutamatergic drugs are under preclinical and clinical development for the treatment of different mental diseases that share glutamatergic neuroplasticity dysfunctions. Although clinical evidence is still limited and more studies are required, the regulation of glutamate homeostasis is attracting attention as a potential crucial target for the control of brain diseases.
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Affiliation(s)
- Noemi Nicosia
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.N.); (M.G.); (P.M.)
- PhD Program in Neuroscience, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Mattia Giovenzana
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.N.); (M.G.); (P.M.)
- PhD Program in Neuroscience, School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Paulina Misztak
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.N.); (M.G.); (P.M.)
| | - Jessica Mingardi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.N.); (M.G.); (P.M.)
| | - Laura Musazzi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.N.); (M.G.); (P.M.)
- Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
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Gusev E, Sarapultsev A. Exploring the Pathophysiology of Long COVID: The Central Role of Low-Grade Inflammation and Multisystem Involvement. Int J Mol Sci 2024; 25:6389. [PMID: 38928096 PMCID: PMC11204317 DOI: 10.3390/ijms25126389] [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: 05/28/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Long COVID (LC), also referred to as Post COVID-19 Condition, Post-Acute Sequelae of SARS-CoV-2 Infection (PASC), and other terms, represents a complex multisystem disease persisting after the acute phase of COVID-19. Characterized by a myriad of symptoms across different organ systems, LC presents significant diagnostic and management challenges. Central to the disorder is the role of low-grade inflammation, a non-classical inflammatory response that contributes to the chronicity and diversity of symptoms observed. This review explores the pathophysiological underpinnings of LC, emphasizing the importance of low-grade inflammation as a core component. By delineating the pathogenetic relationships and clinical manifestations of LC, this article highlights the necessity for an integrated approach that employs both personalized medicine and standardized protocols aimed at mitigating long-term consequences. The insights gained not only enhance our understanding of LC but also inform the development of therapeutic strategies that could be applicable to other chronic conditions with similar pathophysiological features.
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Affiliation(s)
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia;
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McLaughlin AP, Lambert E, Milton R, Mariani N, Kose M, Nikkheslat N, Patsalos O, Ferraro L, Chamseddine G, Panagiotopoulos S, Chang A, Ramar S, Patel A, Rubino F, Mondelli V. Peripheral inflammation associated with depression and reduced weight loss: a longitudinal study of bariatric patients. Psychol Med 2024; 54:601-610. [PMID: 37652080 DOI: 10.1017/s0033291723002283] [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] [Indexed: 09/02/2023]
Abstract
BACKGROUND Research implicates inflammation in the vicious cycle between depression and obesity, yet few longitudinal studies exist. The rapid weight loss induced by bariatric surgery is known to improve depressive symptoms dramatically, but preoperative depression diagnosis may also increase the risk for poor weight loss. Therefore, we investigated longitudinal associations between depression and inflammatory markers and their effect on weight loss and clinical outcomes in bariatric patients. METHODS This longitudinal observational study of 85 patients with obesity undergoing bariatric surgery included 41 cases with depression and 44 controls. Before and 6 months after surgery, we assessed depression by clinical interview and measured serum high-sensitivity C-reactive protein (hsCRP) and inflammatory cytokines, including interleukin (IL)-6 and IL-10. RESULTS Before surgery, depression diagnosis was associated with significantly higher serum hsCRP, IL-6, and IL-6/10 ratio levels after controlling for confounders. Six months after surgery, patients with pre-existing depression still had significantly higher inflammation despite demonstrating similar weight loss to controls. Hierarchical regression showed higher baseline hsCRP levels predicted poorer weight loss (β = -0.28, p = 0.01) but had no effect on depression severity at follow-up (β = -0.02, p = 0.9). Instead, more severe baseline depressive symptoms and childhood emotional abuse predicted greater depression severity after surgery (β = 0.81, p < 0.001; and β = 0.31, p = 0.001, respectively). CONCLUSIONS Depression was significantly associated with higher inflammation beyond the effect of obesity and other confounders. Higher inflammation at baseline predicted poorer weight loss 6 months after surgery, regardless of depression diagnosis. Increased inflammation, rather than depression, may drive poor weight loss outcomes among bariatric patients.
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Affiliation(s)
- Anna P McLaughlin
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, and King's College London, London, UK
| | - Ellen Lambert
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, and King's College London, London, UK
| | - Rebecca Milton
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
| | - Nicole Mariani
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
| | - Melisa Kose
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
| | - Naghmeh Nikkheslat
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
| | - Olivia Patsalos
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, and King's College London, London, UK
| | - Luca Ferraro
- ASST Santi Paolo e Carlo, Azienda Socio Sanitaria Territorale Santi Paolo e Carlo, Milan, Italy
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Ghassan Chamseddine
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Spyros Panagiotopoulos
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Avril Chang
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Sasindran Ramar
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Ameet Patel
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Francesco Rubino
- Department of Metabolic & Bariatric Surgery, Diabetes & Nutritional Science Division, King's College Hospital, London, UK
| | - Valeria Mondelli
- Department of Psychological Medicine, Institute of Psychology, Psychiatry and Neuroscience, King's College London, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, and King's College London, London, UK
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Sarapultsev A, Gusev E, Komelkova M, Utepova I, Luo S, Hu D. JAK-STAT signaling in inflammation and stress-related diseases: implications for therapeutic interventions. MOLECULAR BIOMEDICINE 2023; 4:40. [PMID: 37938494 PMCID: PMC10632324 DOI: 10.1186/s43556-023-00151-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/26/2023] [Indexed: 11/09/2023] Open
Abstract
The Janus kinase-signal transducer and transcription activator pathway (JAK-STAT) serves as a cornerstone in cellular signaling, regulating physiological and pathological processes such as inflammation and stress. Dysregulation in this pathway can lead to severe immunodeficiencies and malignancies, and its role extends to neurotransduction and pro-inflammatory signaling mechanisms. Although JAK inhibitors (Jakinibs) have successfully treated immunological and inflammatory disorders, their application has generally been limited to diseases with similar pathogenic features. Despite the modest expression of JAK-STAT in the CNS, it is crucial for functions in the cortex, hippocampus, and cerebellum, making it relevant in conditions like Parkinson's disease and other neuroinflammatory disorders. Furthermore, the influence of the pathway on serotonin receptors and phospholipase C has implications for stress and mood disorders. This review expands the understanding of JAK-STAT, moving beyond traditional immunological contexts to explore its role in stress-related disorders and CNS function. Recent findings, such as the effectiveness of Jakinibs in chronic conditions such as rheumatoid arthritis, expand their therapeutic applicability. Advances in isoform-specific inhibitors, including filgotinib and upadacitinib, promise greater specificity with fewer off-target effects. Combination therapies, involving Jakinibs and monoclonal antibodies, aiming to enhance therapeutic specificity and efficacy also give great hope. Overall, this review bridges the gap between basic science and clinical application, elucidating the complex influence of the JAK-STAT pathway on human health and guiding future interventions.
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Affiliation(s)
- Alexey Sarapultsev
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia.
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia.
| | - Evgenii Gusev
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
| | - Maria Komelkova
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080, Chelyabinsk, Russia
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
| | - Irina Utepova
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049, Ekaterinburg, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 620002, Ekaterinburg, Russian Federation
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
- Clinical Research Center of Cancer Immunotherapy, Hubei Wuhan, 430022, China
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Cao Y, Lizano P, Deng G, Sun H, Zhou X, Xie H, Zhan Y, Mu J, Long X, Xiao H, Liu S, Gong Q, Qiu C, Jia Z. Brain-derived subgroups of bipolar II depression associate with inflammation and choroid plexus morphology. Psychiatry Clin Neurosci 2023; 77:613-621. [PMID: 37585287 DOI: 10.1111/pcn.13585] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 07/06/2023] [Accepted: 08/08/2023] [Indexed: 08/18/2023]
Abstract
AIM Elevated inflammation and larger choroid plexus (ChP) volume has been previously identified in mood disorders. Connections between inflammation, ChP, and clinical symptoms in bipolar II depression (BDII-D) are unclear. Data-driven clustering based on neuroanatomical phenotypes may help to elucidate neurobiological associations in BDII-D. METHODS Inflammatory cytokines, clinical symptoms, and neuroanatomical features were assessed in 150 BDII-D patients. Sixty-eight cortical surface area (SA) and 19 subcortical volumes were extracted using FreeSurfer. The ChP volume was segmented manually using 3D Slicer. Regularized canonical correlation analysis was used to identify significantly correlated components between cortical SA and subcortical volumes (excluding the ChP), followed by k-means clustering to define brain-derived subgroups of BDII-D. Low-grade inflammation was derived by averaging the standardized z scores of interleukin (IL)-6, IL-1β, and tumor necrosis factor-α (TNF-α), which were computed to create a composite z-value score. Partial Pearson correlations followed by multiple comparison correction were conducted to explore associations between inflammation, clinical symptoms, and ChP volume. RESULTS Subgroup I demonstrated smaller subcortical volume and cortical SA, higher inflammation, and larger ChP volume compared with subgroup II. Greater ChP volume was associated with a higher low-grade inflammation (mean r = 0.289, q = 0.003), CRP (mean r = 0.249, q = 0.007), IL-6 (left r = 0.200, q = 0.03), and TNF-α (right r = 0.226, q = 0.01), while greater IL-1β was significantly associated with severe depressive symptoms in BDII-D (r = 0.218, q = 0.045). CONCLUSIONS Neuroanatomically-derived subgroups of BDII-D differed in their inflammation levels and ChP volume. These findings suggest an important role of elevated peripheral inflammation and larger ChP in BDII-D.
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Grants
- 81971595 National Natural Science Foundation of China
- 82271947 National Natural Science Foundation of China
- 2020HXFH005 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- 2022HXFH029 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- ZYJC21083 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- 2022YFS0345 Department of Science and Technology of Sichuan Provincial Government
- 2022NSFSC0047 Key Program of Natural Science Foundation of Sichuan Province
- 2020HXFH005 the 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- 2022HXFH029 the 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- ZYJC21083 the 1·3·5 Project for Disciplines of Excellence-Clinical Research Incubation Project, West China Hospital, Sichuan University
- 2022YFS0345 the Department of Science and Technology of Sichuan Provincial Government
- 2022NSFSC0047 the Key Program of Natural Science Foundation of Sichuan Province
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Affiliation(s)
- Yuan Cao
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Paulo Lizano
- The Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
- Division of Translational Neuroscience, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
- The Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA
| | - Gaoju Deng
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Huan Sun
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Xiaoqin Zhou
- Department of Clinical Research Management, West China Hospital of Sichuan University, Chengdu, China
| | - Hongsheng Xie
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Yaru Zhan
- Department of Radiology, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jingshi Mu
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Xipeng Long
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
| | - Hongqi Xiao
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Shiyu Liu
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Qiyong Gong
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
- Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen, China
| | - Changjian Qiu
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Zhiyun Jia
- Department of Nuclear Medicine, West China Hospital of Sichuan University, Chengdu, China
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China
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Cui S, Liu Z, Liu Y, Yao G, Wu Y, Li J, Sun F, Sun L, Sun L. Correlation Between Systemic Immune-Inflammation Index and Suicide Attempts in Children and Adolescents with First-Episode, Drug-Naïve Major Depressive Disorder During the COVID-19 Pandemic. J Inflamm Res 2023; 16:4451-4460. [PMID: 37842191 PMCID: PMC10573448 DOI: 10.2147/jir.s433397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/27/2023] [Indexed: 10/17/2023] Open
Abstract
Objective This study aims to investigate the association between the systemic immune-inflammatory index (SII) and suicide attempt (SA) in children and adolescents with first-episode, drug-naïve Major Depressive Disorder (MDD) during the COVID-19 pandemic. Methods A retrospective study was conducted on 263 MDD patients hospitalized at the Third Hospital of Fuyang City between 2020 and 2022. Patients were categorized into two groups based on the presence of previous SA. The study compared the differences in SII and clinical characteristics between the two groups and used the receiver operating characteristic (ROC) curve to determine the optimal critical value of SII and the area under the curve. Binary logistic regression was used to analyze the independent risk factors for SA. Results Compared with the patients without SA history, the patients with a personal history of SA had a higher mean HDRS scores (Z=-2.369, p=0.018), higher mean neutrophil count (Z=-2.870, p=0.004), higher mean platelet count (Z=-2.155, p=0.031), and higher mean SII (Z=-3.170, p=0.002). The optimal critical SII determined by the ROC curve was 548.15 (sensitivity = 63.2%, specificity = 83.1%), and the area under the curve was 0.661. After adjusting for gender, age, BMI, illness duration and HDRS score, the risk of total SA in patients with high SII was 8.296 times higher than in those with low SII (OR = 8.296, 95% CI: 3.803-18.095, P < 0.001), The risk of recent SA was 13.922 times higher in patients with high SII than in those with low SII (OR = 13.922, 95% CI: 5.587-34.693, p < 0.001). However, high SII was not a risk factor for past SA (OR = 0.547, 95% CI: 0.062-4.842, P=0.587). Conclusion SII may be an inexpensive, easily accessible strategy that can assist in determining suicide risk in adolescents with MDD.
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Affiliation(s)
- Shu Cui
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Zhiwei Liu
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Yun Liu
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Gaofeng Yao
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Yanhai Wu
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Juanjuan Li
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
| | - Feng Sun
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Liang Sun
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Longlong Sun
- Department of Psychiatry, Third People’s Hospital of Fuyang, Fuyang, Anhui, 236000, People’s Republic of China
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
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Liwinski T, Lang UE. Folate and Its Significance in Depressive Disorders and Suicidality: A Comprehensive Narrative Review. Nutrients 2023; 15:3859. [PMID: 37686891 PMCID: PMC10490031 DOI: 10.3390/nu15173859] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/21/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Depressive disorders pose significant challenges to global public health, necessitating effective prevention and management strategies. Notably, the occurrence of suicide frequently coincides with depressive episodes. Suicide is as a paramount global health concern that demands efficacious preventive strategies. Current psychiatric approaches heavily rely on pharmacological interventions but have had limited success in addressing the global burden of mental health issues. Suboptimal nutrition, with its impact on the neuroendocrine system, has been implicated in the underlying pathology of depressive disorders. Folate, a group of water-soluble compounds, plays a crucial role in various central nervous system functions. Depressed individuals often exhibit low levels of serum and red blood cell folate. Multiple studies and systematic reviews have investigated the efficacy of folic acid and its derivative, L-methylfolate, which can cross the blood-brain barrier, as stand-alone or adjunct therapies for depression. Although findings have been mixed, the available evidence generally supports the use of these compounds in depressed individuals. Recent studies have established links between the one-carbon cycle, folate-homocysteine balance, immune system function, glutamate excitation via NMDA (N-methyl-D-aspartate) receptors, and gut microbiome eubiosis in mood regulation. These findings provide insights into the complex neurobiological mechanisms underlying the effects of folate and related compounds in depression. Through a comprehensive review of the existing literature, this study aims to advance our understanding of the therapeutic potential of folic acid and related compounds in depression treatment. It also seeks to explore their role in addressing suicidal tendencies and shed light on the neurobiological mechanisms involved, leveraging the latest discoveries in depression research.
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Affiliation(s)
- Timur Liwinski
- Clinic for Adult Psychiatry, University Psychiatric Clinics, University of Basel, Wilhelm Klein-Strasse 27, CH-4002 Basel, Switzerland;
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9
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Turkheimer FE, Veronese M, Mondelli V, Cash D, Pariante CM. Sickness behaviour and depression: An updated model of peripheral-central immunity interactions. Brain Behav Immun 2023; 111:202-210. [PMID: 37076054 DOI: 10.1016/j.bbi.2023.03.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/15/2023] [Accepted: 03/26/2023] [Indexed: 04/21/2023] Open
Abstract
Current research into mood disorders indicates that circulating immune mediators participating in the pathophysiology of chronic somatic disorders have potent influences on brain function. This paradigm has brought to the fore the use of anti-inflammatory therapies as adjunctive to standard antidepressant therapy to improve treatment efficacy, particularly in subjects that do not respond to standard medication. Such new practice requires biomarkers to tailor these new therapies to those most likely to benefit but also validated mechanisms of action describing the interaction between peripheral immunity and brain function to optimize target intervention. These mechanisms are generally studied in preclinical models that try to recapitulate the human disease, MDD, through peripherally induced sickness behaviour. In this proposal paper, after an appraisal of the data in rodent models and their adherence to the data in clinical cohorts, we put forward a modified model of periphery-brain interactions that goes beyond the currently established view of microglia cells as the drivers of depression. Instead, we suggest that, for most patients with mild levels of peripheral inflammation, brain barriers are the primary actors in the pathophysiology of the disease and in treatment resistance. We then highlight data gaps in this proposal and suggest novel lines of research.
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Affiliation(s)
- Federico E Turkheimer
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.
| | - Mattia Veronese
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Department of Information Engineering, University of Padova, Padova, Italy
| | - Valeria Mondelli
- Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | - Diana Cash
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Carmine M Pariante
- Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
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10
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Gutiérrez-Casares JR, Segú-Vergés C, Sabate Chueca J, Pozo-Rubio T, Coma M, Montoto C, Quintero J. In silico evaluation of the role of lisdexamfetamine on attention-deficit/hyperactivity disorder common psychiatric comorbidities: mechanistic insights on binge eating disorder and depression. Front Neurosci 2023; 17:1118253. [PMID: 37457000 PMCID: PMC10347683 DOI: 10.3389/fnins.2023.1118253] [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: 12/07/2022] [Accepted: 06/12/2023] [Indexed: 07/18/2023] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a psychiatric condition well recognized in the pediatric population that can persist into adulthood. The vast majority of patients with ADHD present psychiatric comorbidities that have been suggested to share, to some extent, the pathophysiological mechanism of ADHD. Lisdexamfetamine (LDX) is a stimulant prodrug approved for treating ADHD and, in the US, also for binge eating disorder (BED). Herein, we evaluated, through a systems biology-based in silico method, the efficacy of a virtual model of LDX (vLDX) as ADHD treatment to improve five common ADHD psychiatric comorbidities in adults and children, and we explored the molecular mechanisms behind LDX's predicted efficacy. After the molecular characterization of vLDX and the comorbidities (anxiety, BED, bipolar disorder, depression, and tics disorder), we created a protein-protein interaction human network to which we applied artificial neural networks (ANN) algorithms. We also generated virtual populations of adults and children-adolescents totaling 2,600 individuals and obtained the predicted protein activity from Therapeutic Performance Mapping System models. The latter showed that ADHD molecular description shared 53% of its protein effectors with at least one studied psychiatric comorbidity. According to the ANN analysis, proteins targeted by vLDX are predicted to have a high probability of being related to BED and depression. In BED, vLDX was modeled to act upon neurotransmission and neuroplasticity regulators, and, in depression, vLDX regulated the hypothalamic-pituitary-adrenal axis, neuroinflammation, oxidative stress, and glutamatergic excitotoxicity. In conclusion, our modeling results, despite their limitations and although requiring in vitro or in vivo validation, could supplement the design of preclinical and potentially clinical studies that investigate treatment for patients with ADHD with psychiatric comorbidities, especially from a molecular point of view.
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Affiliation(s)
- José Ramón Gutiérrez-Casares
- Unidad Ambulatoria de Psiquiatría y Salud Mental de la Infancia, Niñez y Adolescencia, Hospital Perpetuo Socorro, Badajoz, Spain
| | - Cristina Segú-Vergés
- Anaxomics Biotech, Barcelona, Spain
- Research Programme on Biomedical Informatics (GRIB), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | | | | | | | - Carmen Montoto
- Department of Medical, Takeda Farmacéutica España, Madrid, Spain
| | - Javier Quintero
- Servicio de Psiquiatría, Hospital Universitario Infanta Leonor, Departamento de Medicina Legal, Patología y Psiquiatría, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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11
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Ikari T, Furusawa Y, Tabuchi Y, Maruyama Y, Hattori A, Kitani Y, Toyota K, Nagami A, Hirayama J, Watanabe K, Shigematsu A, Rafiuddin MA, Ogiso S, Fukushi K, Kuroda K, Hatano K, Sekiguchi T, Kawashima R, Srivastav AK, Nishiuchi T, Sakatoku A, Yoshida MA, Matsubara H, Suzuki N. Kynurenine promotes Calcitonin secretion and reduces cortisol in the Japanese flounder Paralichthys olivaceus. Sci Rep 2023; 13:8700. [PMID: 37248272 DOI: 10.1038/s41598-023-35222-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 05/15/2023] [Indexed: 05/31/2023] Open
Abstract
Deep ocean water (DOW) exerts positive effects on the growth of marine organisms, suggesting the presence of unknown component(s) that facilitate their aquaculture. We observed that DOW suppressed plasma cortisol (i.e., a stress marker) concentration in Japanese flounder (Paralichthys olivaceus) reared under high-density condition. RNA-sequencing analysis of flounder brains showed that when compared to surface seawater (SSW)-reared fish, DOW-reared fish had lower expression of hypothalamic (i.e., corticotropin-releasing hormone) and pituitary (i.e., proopiomelanocortin, including adrenocorticotropic hormone) hormone-encoding genes. Moreover, DOW-mediated regulation of gene expression was linked to decreased blood cortisol concentration in DOW-reared fish. Our results indicate that DOW activated osteoblasts in fish scales and facilitated the production of Calcitonin, a hypocalcemic hormone that acts as an analgesic. We then provide evidence that the Calcitonin produced is involved in the regulatory network of genes controlling cortisol secretion. In addition, the indole component kynurenine was identified as the component responsible for osteoblast activation in DOW. Furthermore, kynurenine increased plasma Calcitonin concentrations in flounders reared under high-density condition, while it decreased plasma cortisol concentration. Taken together, we propose that kynurenine in DOW exerts a cortisol-reducing effect in flounders by facilitating Calcitonin production by osteoblasts in the scales.
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Grants
- 22009, 22015, 22016, 22017, 22044 The cooperative research program of the Institute of Nature and Environmental Technology, Kanazawa University
- 22009, 22015, 22016, 22017, 22044 The cooperative research program of the Institute of Nature and Environmental Technology, Kanazawa University
- 22009, 22015, 22016, 22017, 22044 The cooperative research program of the Institute of Nature and Environmental Technology, Kanazawa University
- 22009, 22015, 22016, 22017, 22044 The cooperative research program of the Institute of Nature and Environmental Technology, Kanazawa University
- 22009, 22015, 22016, 22017, 22044 The cooperative research program of the Institute of Nature and Environmental Technology, Kanazawa University
- 20K06718, 21K05725, 22J01508 JSPS
- 20K06718, 21K05725, 22J01508 JSPS
- 20K06718, 21K05725, 22J01508 JSPS
- 2209 The Salt Science Research Foundation
- JPMJTM19AP JST
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Affiliation(s)
- Takahiro Ikari
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Yukihiro Furusawa
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Kurokawa, Toyama, 939-0398, Japan
| | - Yoshiaki Tabuchi
- Life Science Research Center, University of Toyama, Sugitani, Toyama, 930-0194, Japan
| | - Yusuke Maruyama
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Chiba, 272-0827, Japan
| | - Atsuhiko Hattori
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Chiba, 272-0827, Japan
| | - Yoichiro Kitani
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Kenji Toyota
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Arata Nagami
- Noto Center for Fisheries Science and Technology, Kanazawa University, Osaka, Noto-Cho, Ishikawa, 927-0552, Japan
| | - Jun Hirayama
- Department of Clinical Engineering, Faculty of Health Sciences, Komatsu University, Komatsu, Ishikawa, 923-0961, Japan
| | - Kazuki Watanabe
- Department of Biology, College of Liberal Arts and Sciences, Tokyo Medical and Dental University, Ichikawa, Chiba, 272-0827, Japan
- Department of Clinical Engineering, Faculty of Health Sciences, Komatsu University, Komatsu, Ishikawa, 923-0961, Japan
| | - Atsushi Shigematsu
- Noto Center for Fisheries Science and Technology, Kanazawa University, Osaka, Noto-Cho, Ishikawa, 927-0552, Japan
| | - Muhammad Ahya Rafiuddin
- Noto Center for Fisheries Science and Technology, Kanazawa University, Osaka, Noto-Cho, Ishikawa, 927-0552, Japan
| | - Shouzo Ogiso
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Keisuke Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan
| | - Kohei Kuroda
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Kaito Hatano
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Toshio Sekiguchi
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan
| | - Ryotaro Kawashima
- Department of Clinical Engineering, Faculty of Health Sciences, Komatsu University, Komatsu, Ishikawa, 923-0961, Japan
| | - Ajai K Srivastav
- Department of Zoology, D.D.U. Gorakhpur University, Gorakhpur, 273-009, India
| | - Takumi Nishiuchi
- Bioscience Core Facility, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Takara-Machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Akihiro Sakatoku
- School of Science, Academic Assembly, University of Toyama, Gofuku, Toyama, 930-8555, Japan
| | - Masa-Aki Yoshida
- Marine Biological Science Section, Education and Research Center for Biological Resources, Faculty of Life and Environmental Science, Shimane University, Oki, Shimane, 685-0024, Japan
| | - Hajime Matsubara
- Noto Center for Fisheries Science and Technology, Kanazawa University, Osaka, Noto-Cho, Ishikawa, 927-0552, Japan
| | - Nobuo Suzuki
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-Cho, Ishikawa, 927-0553, Japan.
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12
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Candee R, Wilkenson R, Schreiber M, DeCenzo M. The roles of neuroinflammation and glutamatergic excitotoxicity in treatment-resistant depression. JAAPA 2023; 36:12-17. [PMID: 36913608 DOI: 10.1097/01.jaa.0000921252.57819.4b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
ABSTRACT Major depressive disorder affects nearly 20% of people during their lifetime. A growing body of evidence supports the theory that neuroinflammation plays a prominent role in the neurobiology of depression, which implicates glutamate and gamma aminobutyric acid as key factors in the pathophysiology of the disease process. This article reviews the pathologic pathways of glutamate excess in the central nervous system and how they may be implicated in the underlying disorder of treatment-resistant depression and targeted for treatment.
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Affiliation(s)
- Ryan Candee
- Ryan Candee practices at Matthews-Vu Medical Group in Colorado Springs, Colo. Rachel Wilkenson is an integrated psychiatrist at Matthews-Vu Medical Group. Molly Schreiber practices at UCHealth in Woodland Park, Colo. Megan DeCenzo practices at Matthews-Vu Medical Group. The authors have disclosed no potential conflicts of interest, financial or otherwise
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13
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Johnston JN, Greenwald MS, Henter ID, Kraus C, Mkrtchian A, Clark NG, Park LT, Gold P, Zarate CA, Kadriu B. Inflammation, stress and depression: An exploration of ketamine's therapeutic profile. Drug Discov Today 2023; 28:103518. [PMID: 36758932 PMCID: PMC10050119 DOI: 10.1016/j.drudis.2023.103518] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/13/2022] [Accepted: 01/31/2023] [Indexed: 02/09/2023]
Abstract
Well-established animal models of depression have described a proximal relationship between stress and central nervous system (CNS) inflammation - a relationship mirrored in the peripheral inflammatory biomarkers of individuals with depression. Evidence also suggests that stress-induced proinflammatory states can contribute to the neurobiology of treatment-resistant depression. Interestingly, ketamine, a rapid-acting antidepressant, can partially exert its therapeutic effects via anti-inflammatory actions on the hypothalamic-pituitary adrenal (HPA) axis, the kynurenine pathway or by cytokine suppression. Further investigations into the relationship between ketamine, inflammation and stress could provide insight into ketamine's unique therapeutic mechanisms and stimulate efforts to develop rapid-acting, anti-inflammatory-based antidepressants.
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Affiliation(s)
- Jenessa N Johnston
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA.
| | - Maximillian S Greenwald
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Ioline D Henter
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Christoph Kraus
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Anahit Mkrtchian
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Neil G Clark
- US School of Medicine, Uniformed Services University, Bethesda, MD, USA
| | - Lawrence T Park
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Philip Gold
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Carlos A Zarate
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Bashkim Kadriu
- Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
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14
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Zhao T, Piao LH, Li DP, Xu SH, Wang SY, Yuan HB, Zhang CX. BDNF gene hydroxymethylation in hippocampus related to neuroinflammation-induced depression-like behaviors in mice. J Affect Disord 2023; 323:723-730. [PMID: 36529411 DOI: 10.1016/j.jad.2022.12.035] [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: 05/10/2022] [Revised: 10/31/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Neuroinflammation is a multifactorial condition related to glial cells and neurons activation, and it is implicated in CNS disorders including depression. BDNF is a crucial molecule that related to the pathology of depression, and it is the target of DNA methylation. DNA hydroxymethylation, an active demethylation process can convert 5-mC to 5-hmC by Tets catalyzation to regulate gene transcription. The regulatory function for BDNF gene in response to neuroinflammation remains poorly understood. METHODS Neuroinflammation and depressive-like behaviors were induced by lipopolysaccharide (LPS) administration in mice. The microglial activation and cellular 5-hmC localization in the hippocampus were confirmed by immunostaining. The transcripts of Tets and BDNF were examined by qPCR method. The global 5-hmC levels and enrichment of 5-hmC in BDNF gene in the hippocampus were analyzed using dot bolt and hMeDIP-sequencing analysis. RESULTS LPS administration induced a spectrum of depression-like behaviors (including behavioral despair and anhedonia) and increased expression of Iba-1, a marker for microglia activation, in hippocampus, demonstrating that LPS treatment cloud provide stable model of neuroinflammation with depressive-like behaviors as expected. Our results showed that Tet1, Tet2 and Tet3 mRNA expressions and consequent global 5-hmC levels were significantly decreased in the hippocampus of LPS group compared to saline group. We also demonstrated that 5-hmC fluorescence in the hippocampus located in excitatory neurons identified by CaMK II immunostaining. Furthermore, we demonstrated that the enrichment of 5-hmC in BDNF gene was decreased and corresponding BDNF mRNA was down-regulated in the hippocampus in LPS group compared to saline group. CONCLUSION Neuroinflammation-triggered aberrant BDNF gene hydroxymethylation in the hippocampus is an important epigenetic element that relates with depression-like behaviors.
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Affiliation(s)
- Te Zhao
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Lian-Hua Piao
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Dan-Ping Li
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Shi-Han Xu
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Shu-Yi Wang
- The Second Bethune Clinical Medical College of Jilin University, Changchun, Jilin 130021, China
| | - Hai-Bo Yuan
- Department of Respiratory Medicine & Sleep Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Chun-Xiao Zhang
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China.
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15
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Therapeutic Molecular Insights into the Active Engagement of Cannabinoids in the Therapy of Parkinson's Disease: A Novel and Futuristic Approach. Neurotox Res 2023; 41:85-102. [PMID: 36567416 DOI: 10.1007/s12640-022-00619-y] [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: 08/23/2022] [Revised: 11/09/2022] [Accepted: 12/05/2022] [Indexed: 12/27/2022]
Abstract
Parkinson's disease is a neurodegenerative disorder which is characterised mostly by loss of dopaminergic nerve cells throughout the nigral area mainly as a consequence of oxidative stress. Muscle stiffness, disorganised bodily responses, disturbed sleep, weariness, amnesia, and voice impairment are all symptoms of dopaminergic neuron degeneration and existing symptomatic treatments are important to arrest additional neuronal death. Some cannabinoids have recently been demonstrated as robust antioxidants that might protect the nerve cells from degeneration even when cannabinoid receptors are not triggered. Cannabinoids are likely to have property to slow or presumably cease the steady deterioration of the brain's dopaminergic systems, a condition for which there is now no treatment. The use of cannabinoids in combination with currently available drugs has the potential to introduce a radically new paradigm for treatment of Parkinson's disease, making it immensely useful in the treatment of such a debilitating illness.
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16
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Blaylock RL. The biochemical basis of neurodegenerative disease: The role of immunoexcitoxicity and ways to possibly attenuate it. Surg Neurol Int 2023; 14:141. [PMID: 37151454 PMCID: PMC10159298 DOI: 10.25259/sni_250_2023] [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: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 05/09/2023] Open
Abstract
There is growing evidence that inflammation secondary to immune activation is intimately connected to excitotoxicity. We now know that most peripheral tissues contain fully operational glutamate receptors. While most of the available research deals with excitotoxicity in central nervous system (CNS) tissues, this is no longer true. Even plant has been found to contain glutamate receptors. Most of the immune cells, including mask cells, contain glutamate receptors. The receptors are altered by inflammation, both chemokine and cytokines. A host of new diseases have been found that are caused by immunity to certain glutamate receptors, as we see with Rasmussen's encephalitis. In this paper, I try to explain this connection and possible ways to reduce or even stop the reaction.
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Affiliation(s)
- Russell L. Blaylock
- Corresponding author: Russell L. Blaylock, M.D. 609 Old Natchez Trace Canton, MS. Retired Neurosurgeon, Department of Neurosurgery, Theoretical Neuroscience Research, LLC, Ridgeland, Mississippi, United States.
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17
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Felger JC. Increased Inflammation and Treatment of Depression: From Resistance to Reuse, Repurposing, and Redesign. ADVANCES IN NEUROBIOLOGY 2023; 30:387-416. [PMID: 36928859 DOI: 10.1007/978-3-031-21054-9_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Based on mounting clinical and translational evidence demonstrating the impact of exogenously administered inflammatory stimuli on the brain and behavior, increased endogenous inflammation has received attention as one pathophysiologic process contributing to psychiatric illnesses and particularly depression. Increased endogenous inflammation is observed in a significant proportion of depressed patients and has been associated with reduced responsiveness to standard antidepressant therapies. This chapter presents recent evidence that inflammation affects neurotransmitters and neurocircuits to contribute to specific depressive symptoms including anhedonia, motor slowing, and anxiety, which may preferentially improve after anti-cytokine therapies in patients with evidence of increased inflammation. Existing and novel pharmacological strategies that target inflammation or its downstream effects on the brain and behavior will be discussed in the context of a need for intelligent trial design in order to meaningfully translate these concepts and develop more precise therapies for depressed patients with increased inflammation.
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18
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Sadeghi MA, Hemmati S, Nassireslami E, Yousefi Zoshk M, Hosseini Y, Abbasian K, Chamanara M. Targeting neuronal nitric oxide synthase and the nitrergic system in post-traumatic stress disorder. Psychopharmacology (Berl) 2022; 239:3057-3082. [PMID: 36029333 DOI: 10.1007/s00213-022-06212-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/04/2022] [Indexed: 12/22/2022]
Abstract
RATIONALE Current pharmacological approaches to treatment of post-traumatic stress disorder (PTSD) lack adequate effectiveness. As a result, identifying new molecular targets for drug development is necessary. Furthermore, fear learning and memory in PTSD can undergo different phases, such as fear acquisition, consolidation, and extinction. Each phase may involve different cellular pathways and brain regions. As a result, effective management of PTSD requires mindfulness of the timing of drug administration. One of the molecular targets currently under intense investigation is the N-methyl-D-aspartate (NMDA)-type glutamate receptor (NMDAR). However, despite the therapeutic efficacy of drugs targeting NMDAR, their translation into clinical use has been challenging due to their various side effects. One possible solution to this problem is to target signaling proteins downstream to NMDAR to improve targeting specificity. One of these proteins is the neuronal nitric oxide synthase (nNOS), which is activated following calcium influx through the NMDAR. OBJECTIVE In this paper, we review the literature on the pharmacological modulation of nNOS in animal models of PTSD to evaluate its therapeutic potential. Furthermore, we attempt to decipher the inconsistencies observed between the findings of these studies based on the specific phase of fear learning which they had targeted. RESULTS Inhibition of nNOS may inhibit fear acquisition and recall, while not having a significant effect on fear consolidation and extinction. However, it may improve extinction consolidation or reconsolidation blockade. CONCLUSIONS Modulation of nNOS has therapeutic potential against PTSD and warrants further development for use in the clinical setting.
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Affiliation(s)
- Mohammad Amin Sadeghi
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Sara Hemmati
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Nassireslami
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | | | - Yasaman Hosseini
- Cognitive Neuroscience Center, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Kourosh Abbasian
- Management and Health Economics Department, AJA University of Medical Sciences, Tehran, Iran
| | - Mohsen Chamanara
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran. .,Department of Pharmacology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.
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19
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Bekhbat M, Ulukaya GB, Bhasin MK, Felger JC, Miller AH. Cellular and immunometabolic mechanisms of inflammation in depression: Preliminary findings from single cell RNA sequencing and a tribute to Bruce McEwen. Neurobiol Stress 2022; 19:100462. [PMID: 35655933 PMCID: PMC9152104 DOI: 10.1016/j.ynstr.2022.100462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/03/2022] [Accepted: 05/16/2022] [Indexed: 11/04/2022] Open
Abstract
Inflammation is associated with symptoms of anhedonia, a core feature of major depression (MD). We have shown that MD patients with high inflammation as measured by plasma C-reactive protein (CRP) and anhedonia display gene signatures of metabolic reprograming (e.g., shift to glycolysis) necessary to sustain cellular immune activation. To gain preliminary insight into the immune cell subsets and transcriptomic signatures that underlie increased inflammation and its relationship with behavior in MD at the single-cell (sc) level, herein we conducted scRNA-Seq on peripheral blood mononuclear cells from a subset of medically-stable, unmedicated MD outpatients. Three MD patients with high CRP (>3 mg/L) before and two weeks after anti-inflammatory challenge with the tumor necrosis factor antagonist infliximab and three patients with low CRP (≤3 mg/L) were studied. Cell clusters were identified using a Single Cell Wizard pipeline, followed by pathway analysis. CD14+ and CD16+ monocytes were more abundant in MD patients with high CRP and were reduced by 29% and 55% respectively after infliximab treatment. Within CD14+ and CD16+ monocytes, genes upregulated in high CRP patients were enriched for inflammatory (phagocytosis, complement, leukocyte migration) and immunometabolic (hypoxia-inducible factor [HIF]-1, aerobic glycolysis) pathways. Shifts in CD4+ T cell subsets included ∼30% and ∼10% lower abundance of CD4+ central memory (TCM) and naïve cells and ∼50% increase in effector memory-like (TEM-like) cells in high versus low CRP patients. TCM cells of high CRP patients displayed downregulation of the oxidative phosphorylation (OXPHOS) pathway, a main energy source in this cell type. Following infliximab, changes in the number of CD14+ monocytes and CD4+ TEM-like cells predicted improvements in anhedonia scores (r = 1.0, p < 0.001). In sum, monocytes and CD4+ T cells from MD patients with increased inflammation exhibited immunometabolic reprograming in association with symptoms of anhedonia. These findings are the first step toward determining the cellular and molecular immune pathways associated with inflammatory phenotypes in MD, which may lead to novel immunomodulatory treatments of psychiatric illnesses with increased inflammation.
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Peridontitis as a Risk Factor for Attention Deficit Hyperactivity Disorder: Possible Neuro-inflammatory Mechanisms. Neurochem Res 2022; 47:2925-2935. [PMID: 35764847 DOI: 10.1007/s11064-022-03650-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 10/17/2022]
Abstract
Periodontitis is a condition caused mostly by the creation of a biofilm by the bacterium P. gingivalis, which releases toxins and damages the tooth structure. Recent research studies have reported association between dental health and neuropsychiatric illnesses. Neuroinflammation triggered by the first systemic inflammation caused by the bacterium present in the oral cavities is a plausible explanation for such a relationship. Substantial amount of evidence supports the role of neuroinflammation and dysfunction of the dopaminergic system in the pathology of ADHD (Attention deficit hyperactivity disorders). Recent epidemiological, microbiological and inflammatory findings strengthen that, periodontal bacteria, which cause systemic inflammation can contribute to neuroinflammation and finally ADHD. Although both diseases are characterized by inflammation, the specific pathways and crosslink's between periodontitis and ADHD remain unknown. Here, the authors describe the inflammatory elements of periodontitis, how this dental illness causes systemic inflammation, and how this systemic inflammation contributes to deteriorating neuroinflammation in the evolution of ADHD. Therefore, the aim of this review is to present possible links and mechanisms that could confirm the evidence of this association.
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21
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Romeo B, Lestra V, Martelli C, Benyamina A, Hamdani N. Cannabis Cessation, Inflammatory Markers and Schizophrenia. J Dual Diagn 2022; 18:33-41. [PMID: 34985404 DOI: 10.1080/15504263.2021.2013697] [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] [Indexed: 01/08/2023]
Abstract
Objective A dysbalance of the immune system in schizophrenia has been largely described but few studies have investigated the impact of cannabis use on inflammatory markers in patients with schizophrenia. The objective of our study was to investigate the impact of cannabis use on high-sensitivity C-reactive protein (hsCRP), fibrinogen levels and leucocytic formula in patients with schizophrenia. Methods: Thirty-eight acutely ill inpatients with schizophrenia were included. Patient hsCRP, fibrinogen levels, leukocytic formula and urinary cannabis were measured at baseline and after four weeks of treatment. Results: After four weeks of cannabis cessation (as confirmed by urinary tests), we found an increase of hsCRP level (p = .016) and lymphocytes (p = .03) in consumers patients whereas no difference was observed in non-consumers patients. As compared to non-consumers patients with schizophrenia, consumers had lower levels of hsCRP (p = .045). Finally, a negative correlation was found between the PANSS score evolution (between baseline and 4 weeks) and baseline hsCRP level. Conclusions: In our study, cannabis cessation raises inflammatory markers though improving clinical symptoms. The investigation and the understanding of interactions between cannabis use and inflammatory markers in patients with schizophrenia is of importance and could in the future be a new target for treatment of psychiatric symptoms linked to inflammation.
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Affiliation(s)
- Bruno Romeo
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France.,Unité Psychiatrie-Comorbidités-Addictions-Unité de Recherche 4872 PSYCOMADD Université Paris Sud - AP-HP - Université Paris Saclay, Villejuif, France
| | - Valentine Lestra
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France
| | - Catherine Martelli
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France.,Unité Psychiatrie-Comorbidités-Addictions-Unité de Recherche 4872 PSYCOMADD Université Paris Sud - AP-HP - Université Paris Saclay, Villejuif, France.,Institut National de la Santé et de la Recherche Médicale U1299, Research unit, NeuroImaging and Psychiatry, Paris Sud University- Paris Saclay University, Paris Descartes University, Digiteo Labs, Gif-sur- Yvette, France
| | - Amine Benyamina
- Department of Psychiatry and Addictology, APHP, Paul Brousse Hospital, Villejuif, France.,Unité Psychiatrie-Comorbidités-Addictions-Unité de Recherche 4872 PSYCOMADD Université Paris Sud - AP-HP - Université Paris Saclay, Villejuif, France
| | - Nora Hamdani
- Unité Psychiatrie-Comorbidités-Addictions-Unité de Recherche 4872 PSYCOMADD Université Paris Sud - AP-HP - Université Paris Saclay, Villejuif, France.,Cédiapsy, Paris, France
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22
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Personalized Connectome-Based Modeling in Patients with Semi-Acute Phase TBI: Relationship to Acute Neuroimaging and 6 Month Follow-Up. eNeuro 2022; 9:ENEURO.0075-21.2022. [PMID: 35105657 PMCID: PMC8856703 DOI: 10.1523/eneuro.0075-21.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 01/10/2022] [Accepted: 01/14/2022] [Indexed: 12/26/2022] Open
Abstract
Following traumatic brain injury (TBI), cognitive impairments manifest through interactions between microscopic and macroscopic changes. On the microscale, a neurometabolic cascade alters neurotransmission, while on the macroscale diffuse axonal injury impacts the integrity of long-range connections. Large-scale brain network modeling allows us to make predictions across these spatial scales by integrating neuroimaging data with biophysically based models to investigate how microscale changes invisible to conventional neuroimaging influence large-scale brain dynamics. To this end, we analyzed structural and functional neuroimaging data from a well characterized sample of 44 adult TBI patients recruited from a regional trauma center, scanned at 1–2 weeks postinjury, and with follow-up behavioral outcome assessed 6 months later. Thirty-six age-matched healthy adults served as comparison participants. Using The Virtual Brain, we fit simulations of whole-brain resting-state functional MRI to the empirical static and dynamic functional connectivity of each participant. Multivariate partial least squares (PLS) analysis showed that patients with acute traumatic intracranial lesions had lower cortical regional inhibitory connection strengths than comparison participants, while patients without acute lesions did not differ from the comparison group. Further multivariate PLS analyses found correlations between lower semiacute regional inhibitory connection strengths and more symptoms and lower cognitive performance at a 6 month follow-up. Critically, patients without acute lesions drove this relationship, suggesting clinical relevance of regional inhibitory connection strengths even when traumatic intracranial lesions were not present. Our results suggest that large-scale connectome-based models may be sensitive to pathophysiological changes in semi-acute phase TBI patients and predictive of their chronic outcomes.
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23
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Zhang QP, Cheng J, Liu Q, Xu GH, Li CF, Yi LT. Dendrobium officinale polysaccharides alleviate depression-like symptoms via regulating gut microbiota-neuroinflammation in perimenopausal mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2021.104912] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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24
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Agarwal K, Manza P, Chapman M, Nawal N, Biesecker E, McPherson K, Dennis E, Johnson A, Volkow ND, Joseph PV. Inflammatory Markers in Substance Use and Mood Disorders: A Neuroimaging Perspective. Front Psychiatry 2022; 13:863734. [PMID: 35558424 PMCID: PMC9086785 DOI: 10.3389/fpsyt.2022.863734] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/17/2022] [Indexed: 12/21/2022] Open
Abstract
Chronic exposure to addictive drugs in substance use disorders and stressors in mood disorders render the brain more vulnerable to inflammation. Inflammation in the brain, or neuroinflammation, is characterized by gliosis, microglial activation, and sustained release of cytokines, chemokines, and pro-inflammatory factors compromising the permeability of the blood-brain barrier. There is increased curiosity in understanding how substance misuse and/or repeated stress exposure affect inflammation and contribute to abnormal neuronal activity, altered neuroplasticity, and impaired cognitive control, which eventually promote compulsive drug-use behaviors and worsen mood disorders. This review will emphasize human imaging studies to explore the link between brain function and peripheral markers of inflammation in substance use disorders and mood disorders.
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Affiliation(s)
- Khushbu Agarwal
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States.,Section of Sensory Science and Metabolism, Division of Intramural Research, U.S. Department of Health and Human Services, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, United States
| | - Peter Manza
- Laboratory of Neuroimaging, Department of Health and Human Services, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Marquis Chapman
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Nafisa Nawal
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Erin Biesecker
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Katherine McPherson
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Evan Dennis
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Allison Johnson
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Nora D Volkow
- Laboratory of Neuroimaging, Department of Health and Human Services, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - Paule V Joseph
- Section of Sensory Science and Metabolism Unit, Division of Intramural Research, Department of Health and Human Services, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States.,Section of Sensory Science and Metabolism, Division of Intramural Research, U.S. Department of Health and Human Services, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD, United States
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25
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Bekhbat M, Treadway MT, Felger JC. Inflammation as a Pathophysiologic Pathway to Anhedonia: Mechanisms and Therapeutic Implications. Curr Top Behav Neurosci 2022; 58:397-419. [PMID: 34971449 DOI: 10.1007/7854_2021_294] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Anhedonia, characterized by a lack of motivation, interest, or ability to experience pleasure, is a prominent symptom of depression and other psychiatric disorders and has been associated with poor response to standard therapies. One pathophysiologic pathway receiving increased attention for its potential role in anhedonia is inflammation and its effects on the brain. Exogenous administration of inflammatory stimuli to humans and laboratory animals has reliably been found to affect neurotransmitters and neurocircuits involved in reward processing, including the ventral striatum and ventromedial prefrontal cortex, in association with reduced motivation. Moreover, a rich literature including meta-analyses describes increased inflammation in a significant proportion of patients with depression and other psychiatric illnesses involving anhedonia, as evident by elevated inflammatory cytokines, acute phase proteins, chemokines, and adhesion molecules in both the periphery and central nervous system. This endogenous inflammation may arise from numerous sources including stress, obesity or metabolic dysfunction, genetics, and lifestyle factors, many of which are also risk factors for psychiatric illness. Consistent with laboratory studies involving exogenous administration of peripheral inflammatory stimuli, neuroimaging studies have further confirmed that increased endogenous inflammation in depression is associated with decreased activation of and reduced functional connectivity within reward circuits involving ventral striatum and ventromedial prefrontal cortex in association with anhedonia. Here, we review recent evidence of relationships between inflammation and anhedonia, while highlighting translational and mechanistic work describing the impact of inflammation on synthesis, release, and reuptake of neurotransmitters like dopamine and glutamate that affects circuits to drive motivational deficits. We will then present insight into novel pharmacological strategies that target either inflammation or its downstream effects on the brain and behavior. The meaningful translation of these concepts through appropriately designed trials targeting therapies for psychiatric patients with high inflammation and transdiagnostic symptoms of anhedonia is also discussed.
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Affiliation(s)
- Mandakh Bekhbat
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Michael T Treadway
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Atlanta, GA, USA
- Department of Psychology, Emory University, Atlanta, GA, USA
| | - Jennifer C Felger
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA.
- Winship Cancer Institute, Atlanta, GA, USA.
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26
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Tran AA, De Smet M, Grant GD, Khoo TK, Pountney DL. Investigating the Convergent Mechanisms between Major Depressive Disorder and Parkinson's Disease. Complex Psychiatry 2021; 6:47-61. [PMID: 34883500 DOI: 10.1159/000512657] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 10/23/2020] [Indexed: 12/21/2022] Open
Abstract
Major depressive disorder (MDD) affects more than cognition, having a temporal relationship with neuroinflammatory pathways of Parkinson's disease (PD). Although this association is supported by epidemiological and clinical studies, the underlying mechanisms are unclear. Microglia and astrocytes play crucial roles in the pathophysiology of both MDD and PD. In PD, these cells can be activated by misfolded forms of the protein α-synuclein to release cytokines that can interact with multiple different physiological processes to produce depressive symptoms, including monoamine transport and availability, the hypothalamus-pituitary axis, and neurogenesis. In MDD, glial cell activation can be induced by peripheral inflammatory agents that cross the blood-brain barrier and/or c-Fos signalling from neurons. The resulting neuroinflammation can cause neurodegeneration due to oxidative stress and glutamate excitotoxicity, contributing to PD pathology. Astrocytes are another major link due to their recognized role in the glymphatic clearance mechanism. Research suggesting that MDD causes astrocytic destruction or structural atrophy highlights the possibility that accumulation of α-synuclein in the brain is facilitated as the brain cannot adequately clear the protein aggregates. This review examines research into the overlapping pathophysiology of MDD and PD with particular focus on the roles of glial cells and neuroinflammation.
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Affiliation(s)
- Angela A Tran
- School of Medical Science, Griffith University, Southport, Queensland, Australia.,School of Medicine, Griffith University, Southport, Queensland, Australia
| | - Myra De Smet
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - Gary D Grant
- School of Pharmacy and Pharmacology, Griffith University, Southport, Queensland, Australia
| | - Tien K Khoo
- School of Medicine, Griffith University, Southport, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Southport, Queensland, Australia.,School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia
| | - Dean L Pountney
- School of Medical Science, Griffith University, Southport, Queensland, Australia
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27
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Czapski GA, Strosznajder JB. Glutamate and GABA in Microglia-Neuron Cross-Talk in Alzheimer's Disease. Int J Mol Sci 2021; 22:ijms222111677. [PMID: 34769106 PMCID: PMC8584169 DOI: 10.3390/ijms222111677] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/18/2022] Open
Abstract
The physiological balance between excitation and inhibition in the brain is significantly affected in Alzheimer’s disease (AD). Several neuroactive compounds and their signaling pathways through various types of receptors are crucial in brain homeostasis, among them glutamate and γ-aminobutyric acid (GABA). Activation of microglial receptors regulates the immunological response of these cells, which in AD could be neuroprotective or neurotoxic. The novel research approaches revealed the complexity of microglial function, including the interplay with other cells during neuroinflammation and in the AD brain. The purpose of this review is to describe the role of several proteins and multiple receptors on microglia and neurons, and their involvement in a communication network between cells that could lead to different metabolic loops and cell death/survival. Our review is focused on the role of glutamatergic, GABAergic signaling in microglia–neuronal cross-talk in AD and neuroinflammation. Moreover, the significance of AD-related neurotoxic proteins in glutamate/GABA-mediated dialogue between microglia and neurons was analyzed in search of novel targets in neuroprotection, and advanced pharmacological approaches.
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28
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Agarwal S, Vyas P, Nirwan N, Vohora D. Effect of lacosamide on neuroinflammation-mediated seizures comorbid with depression in C57BL/6 mice- Role of kynurenine pathway. Epilepsy Behav 2021; 123:108262. [PMID: 34425328 DOI: 10.1016/j.yebeh.2021.108262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 10/20/2022]
Abstract
Comorbid conditions in persons with epilepsy (PWE) are very common with depression being highly prevalent. Lacosamide (LCM) is used to treat patients with seizures, but the underlying pathways associating the seizures and comorbid depression are still unknown. Kynurenine pathway (KP) has a major role in seizures, inflammation as well as depression, considering which we evaluated the effect of LCM on kynurenine levels in murine model of neuroinflammation-mediated seizures. We then evaluated the effects on the depressive symptoms associated with seizures. Lipopolysaccharide (LPS) primed pilocarpine (PILO) is an established model for neuro-inflammation-mediated seizures. The anti-seizure and anti-depressive effects of 21 days of LCM administration were studied in this model. After 24 h of seizure termination, behavioral parameters viz. forced swimming test and sucrose preference test were performed to study its antidepressant effect. Biochemical estimations of levels of kynurenine, inflammatory cytokines, and oxidative markers were also evaluated. Lacosamide significantly reduced hippocampal kynurenine levels in LPS and LPS + PILO groups but did not show significant reduction in the PILO alone group. Levels of inflammatory cytokines and oxidative stress markers were also reduced significantly. Lacosamide has shown positive effects against neuroinflammation-mediated model of seizures comorbid with depression by reducing hippocampal kynurenine levels. No reduction in the PILO group is suggestive of the principal contribution of its anti-inflammatory and antioxidant activity in its anti-seizure potential in this model via KP.
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Affiliation(s)
- Shivani Agarwal
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Preeti Vyas
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Nikita Nirwan
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Divya Vohora
- Neurobehavioral Pharmacology Laboratory, Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
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29
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Chen X, Beltran DJ, Tsygankova VD, Woolwine BJ, Patel T, Baer W, Felger JC, Miller AH, Haroon E. Kynurenines increase MRS metabolites in basal ganglia and decrease resting-state connectivity in frontostriatal reward circuitry in depression. Transl Psychiatry 2021; 11:456. [PMID: 34482366 PMCID: PMC8418602 DOI: 10.1038/s41398-021-01587-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 08/04/2021] [Accepted: 08/19/2021] [Indexed: 12/25/2022] Open
Abstract
Inflammation is associated with the development of anhedonia in major depression (MD), but the pathway by which inflammatory molecules gain access to the brain and lead to anhedonia is not clear. Molecules of the kynurenine pathway (KP), which is activated by inflammation, readily influx into the brain and generate end products that alter brain chemistry, disrupt circuit functioning, and result in the expression of inflammatory behaviors such as anhedonia. We examined the impact of plasma and CSF KP metabolites on brain chemistry and neural function using multimodal neuroimaging in 49 depressed subjects. We measured markers of glial dysfunction and distress including glutamate (Glu) and myo-inositol in the left basal ganglia using magnetic resonance spectroscopy (MRS); metrics of local activity coherence (regional homogeneity, ReHo) and functional connectivity from resting-state functional MRI measures; and anhedonia from the Inventory for Depressive Symptoms-Self Report Version (IDS-SR). Plasma kynurenine/tryptophan (KYN/TRP) ratio and cerebrospinal fluid (CSF) 3-hydroxykynurenine (3HK) were associated with increases in left basal ganglia myo-inositol. Plasma kynurenic acid (KYNA) and KYNA/QA were associated with decreases and quinolinic acid (QA) with increases in left basal ganglia Glu. Plasma and CSF KP were associated with decreases in ReHo in the basal ganglia and dorsomedial prefrontal regions (DMPFC) and impaired functional connectivity between these two regions. DMPFC-basal ganglia mediated the effect of plasma and CSF KP on anhedonia. These findings highlight the pathological impact of KP system dysregulation in mediating inflammatory behaviors such as anhedonia.
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Affiliation(s)
- Xiangchuan Chen
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Diana J Beltran
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Valeriya D Tsygankova
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Bobbi J Woolwine
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Trusharth Patel
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA
| | - Wendy Baer
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Jennifer C Felger
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Andrew H Miller
- Emory Behavioral Immunology Program, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Ebrahim Haroon
- Emory Behavioral Immunology Program, Atlanta, GA, USA.
- Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA.
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30
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Fond G, Garosi A, Faugere M, Campion JY, Lancon C, Boyer L, Richieri R, Guedj E. Peripheral inflammation is associated with brain SPECT perfusion changes in schizophrenia. Eur J Nucl Med Mol Imaging 2021; 49:905-912. [PMID: 34405275 DOI: 10.1007/s00259-021-05529-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 08/09/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Peripheral inflammation is frequent in schizophrenia and could play a role in the pathophysiology, prognosis, and persistence of psychotic symptomatology under treatment. We seek to determine the relationship between peripheral inflammation and brain SPECT perfusion in stabilized antipsychotic-treated outpatients with schizophrenia, and to determine whether such perfusion changes are correlated with persistent symptoms. METHODS Highly sensitive C-reactive protein blood level (hs-CRP) and brain SPECT perfusion were assessed in 137 stabilized outpatients with schizophrenia. Whole-brain voxel-based associations were searched with SPM between SPECT perfusion and hs-CRP (correlation analysis to quantitative levels and between-group analysis according to a threshold of 3 mg/L). The identified clusters were secondarily correlated with clinical symptoms. RESULTS After adjustment for age, sex, educational level, illness duration, antidepressant use, chlorpromazine equivalent dose, tobacco smoking and obesity, a negative correlation was found between hs-CRP level and the perfusion of 4 brain areas: the right inferior frontal gyrus, the right middle/superior temporal gyrus, the left superior parietal lobe, and the right postcentral/transverse temporal gyrus (p-voxel < 0.001, k > 80, uncorrected). Increased perfusion of the left amygdala was found in patients with hs-CRP ≥ 3 mg/L compared to those with hs-CRP levels < 3 mg/L. A negative correlation was found between perfusion of the right inferior frontal gyrus and the persistence of positive, negative, and excitement symptoms under antipsychotic treatment. CONCLUSION In stabilized patients with schizophrenia, peripheral inflammation is associated with brain perfusion changes that are correlated with the persistence of psychotic symptomatology.
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Affiliation(s)
- Guillaume Fond
- EA 3279 - EA 3279: CEReSS, Health Service Research and Quality of Life Center, Aix Marseille Univ, 27 Boulevard Jean Moulin, Marseille, France.,Department of Medical Information and Public Health, APHM, Aix Marseille Univ, 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - Alexandra Garosi
- Department of Psychiatry, APHM, La Conception University Hospital, 147 Boulevard Baille, 13005, Marseille, France
| | - Mélanie Faugere
- EA 3279 - EA 3279: CEReSS, Health Service Research and Quality of Life Center, Aix Marseille Univ, 27 Boulevard Jean Moulin, Marseille, France.,Department of Psychiatry, APHM, La Conception University Hospital, 147 Boulevard Baille, 13005, Marseille, France
| | - Jacques-Yves Campion
- Aix Marseille Univ, CNRS, Ecole Centrale Marseille, UMR 7249, Institut Fresnel, CERIMED, 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - Christophe Lancon
- EA 3279 - EA 3279: CEReSS, Health Service Research and Quality of Life Center, Aix Marseille Univ, 27 Boulevard Jean Moulin, Marseille, France.,Department of Psychiatry, APHM, La Conception University Hospital, 147 Boulevard Baille, 13005, Marseille, France
| | - Laurent Boyer
- EA 3279 - EA 3279: CEReSS, Health Service Research and Quality of Life Center, Aix Marseille Univ, 27 Boulevard Jean Moulin, Marseille, France.,Department of Medical Information and Public Health, APHM, Aix Marseille Univ, 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - Raphaelle Richieri
- Department of Psychiatry, APHM, La Conception University Hospital, 147 Boulevard Baille, 13005, Marseille, France.,Aix Marseille Univ, CNRS, Ecole Centrale Marseille, UMR 7249, Institut Fresnel, CERIMED, 27 Boulevard Jean Moulin, 13005, Marseille, France
| | - Eric Guedj
- Aix Marseille Univ, CNRS, Ecole Centrale Marseille, UMR 7249, Institut Fresnel, CERIMED, 27 Boulevard Jean Moulin, 13005, Marseille, France. .,Nuclear Medicine Department, APHM, La Timone University Hospital, 264 rue Saint Pierre, 13005, Marseille, France.
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Selivanov VA, Zagubnaya OA, Nartsissov YR, Cascante M. Unveiling a key role of oxaloacetate-glutamate interaction in regulation of respiration and ROS generation in nonsynaptic brain mitochondria using a kinetic model. PLoS One 2021; 16:e0255164. [PMID: 34343196 PMCID: PMC8330910 DOI: 10.1371/journal.pone.0255164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/11/2021] [Indexed: 12/21/2022] Open
Abstract
Glutamate plays diverse roles in neuronal cells, affecting cell energetics and reactive oxygen species (ROS) generation. These roles are especially vital for neuronal cells, which deal with high amounts of glutamate as a neurotransmitter. Our analysis explored neuronal glutamate implication in cellular energy metabolism and ROS generation, using a kinetic model that simulates electron transport details in respiratory complexes, linked ROS generation and metabolic reactions. The analysis focused on the fact that glutamate attenuates complex II inhibition by oxaloacetate, stimulating the latter's transformation into aspartate. Such a mechanism of complex II activation by glutamate could cause almost complete reduction of ubiquinone and deficiency of oxidized form (Q), which closes the main stream of electron transport and opens a way to massive ROS generating transfer in complex III from semiquinone radicals to molecular oxygen. In this way, under low workload, glutamate triggers the respiratory chain (RC) into a different steady state characterized by high ROS generation rate. The observed stepwise dependence of ROS generation on glutamate concentration experimentally validated this prediction. However, glutamate's attenuation of oxaloacetate's inhibition accelerates electron transport under high workload. Glutamate-oxaloacetate interaction in complex II regulation underlies the observed effects of uncouplers and inhibitors and acceleration of Ca2+ uptake. Thus, this theoretical analysis uncovered the previously unknown roles of oxaloacetate as a regulator of ROS generation and glutamate as a modifier of this regulation. The model predicted that this mechanism of complex II activation by glutamate might be operative in situ and responsible for excitotoxicity. Spatial-time gradients of synthesized hydrogen peroxide concentration, calculated in the reaction-diffusion model with convection under a non-uniform local approximation of nervous tissue, have shown that overproduction of H2O2 in a cell causes excess of its level in neighbor cells.
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Affiliation(s)
- Vitaly A. Selivanov
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
- CIBER of Hepatic and Digestive Diseases (CIBEREHD) and Metabolomics Node at Spanish National Bioinformatics Institute (INB-ISCIII-ES- ELIXIR), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Olga A. Zagubnaya
- Department of Mathematical Modeling and Statistical Analysis, Institute of Cytochemistry and Molecular Pharmacology, Moscow, Russia
| | - Yaroslav R. Nartsissov
- Department of Mathematical Modeling and Statistical Analysis, Institute of Cytochemistry and Molecular Pharmacology, Moscow, Russia
| | - Marta Cascante
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
- CIBER of Hepatic and Digestive Diseases (CIBEREHD) and Metabolomics Node at Spanish National Bioinformatics Institute (INB-ISCIII-ES- ELIXIR), Institute of Health Carlos III (ISCIII), Madrid, Spain
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The effects of genotype on inflammatory response in hippocampal progenitor cells: A computational approach. Brain Behav Immun Health 2021; 15:100286. [PMID: 34345870 PMCID: PMC8261829 DOI: 10.1016/j.bbih.2021.100286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 06/09/2021] [Indexed: 02/08/2023] Open
Abstract
Cell culture models are valuable tools to study biological mechanisms underlying health and disease in a controlled environment. Although their genotype influences their phenotype, subtle genetic variations in cell lines are rarely characterised and taken into account for in vitro studies. To investigate how the genetic makeup of a cell line might affect the cellular response to inflammation, we characterised the single nucleotide variants (SNPs) relevant to inflammation-related genes in an established hippocampal progenitor cell line (HPC0A07/03C) that is frequently used as an in vitro model for hippocampal neurogenesis (HN). SNPs were identified using a genotyping array, and genes associated with chronic inflammatory and neuroinflammatory response gene ontology terms were retrieved using the AmiGO application. SNPs associated with these genes were then extracted from the genotyping dataset, for which a literature search was conducted, yielding relevant research articles for a total of 17 SNPs. Of these variants, 10 were found to potentially affect hippocampal neurogenesis whereby a majority (n=7) is likely to reduce neurogenesis under inflammatory conditions. Taken together, the existing literature seems to suggest that all stages of hippocampal neurogenesis could be negatively affected due to the genetic makeup in HPC0A07/03C cells under inflammation. Additional experiments will be needed to validate these specific findings in a laboratory setting. However, this computational approach already confirms that in vitro studies in general should control for cell lines subtle genetic variations which could mask or exacerbate findings.
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Abstract
Neuropsychiatric sequalae to coronavirus disease 2019 (COVID-19) infection are beginning to emerge, like previous Spanish influenza and severe acute respiratory syndrome episodes. Streptococcal infection in paediatric patients causing obsessive compulsive disorder (PANDAS) is another recent example of an infection-based psychiatric disorder. Inflammation associated with neuropsychiatric disorders has been previously reported but there is no standard clinical management approach established. Part of the reason is that it is unclear what factors determine the specific neuronal vulnerability and the efficacy of anti-inflammatory treatment in neuroinflammation. The emerging COVID-19 data suggested that in the acute stage, widespread neuronal damage appears to be the result of abnormal and overactive immune responses and cytokine storm is associated with poor prognosis. It is still too early to know if there are long-term-specific neuronal or brain regional damages associated with COVID-19, resulting in distinct neuropsychiatric disorders. In several major psychiatric disorders where neuroinflammation is present, patients with abnormal inflammatory markers may also experience less than favourable response or treatment resistance when standard treatment is used alone. Evidence regarding the benefits of co-administered anti-inflammatory agents such as COX-2 inhibitor is encouraging in selected patients though may not benefit others. Disease-modifying therapies are increasingly being applied to neuropsychiatric diseases characterised by abnormal or hyperreactive immune responses. Adjunct anti-inflammatory treatment may benefit selected patients and is definitely an important component of clinical management in the presence of neuroinflammation.
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Coplan JD, George R, Syed SA, Rozenboym AV, Tang JE, Fulton SL, Perera TD. Early Life Stress and the Fate of Kynurenine Pathway Metabolites. Front Hum Neurosci 2021; 15:636144. [PMID: 33994977 PMCID: PMC8117097 DOI: 10.3389/fnhum.2021.636144] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/16/2021] [Indexed: 12/27/2022] Open
Abstract
Early life stress (ELS) precedes alterations to neuro-immune activation, which may mediate an increased risk for stress-related psychiatric disorders, potentially through alterations of central kynurenine pathway (KP) metabolites, the latter being relatively unexplored. We hypothesized that ELS in a non-human primate model would lead to a reduction of neuroprotective and increases of neurotoxic KP metabolites. Twelve adult female bonnet macaques reared under conditions of maternal variable foraging demand (VFD) were compared to 27 age- and weight-matched non-VFD-exposed female controls. Baseline behavioral observations of social affiliation were taken over a 12-week period followed by the first cerebrospinal fluid (CSF) sample. Subjects were then either exposed to a 12-week repeated separation paradigm (RSP) or assigned to a “no-RSP” condition followed by a second CSF. We used high-performance liquid chromatography for kynurenine (KYN), tryptophan, 5-hydroxyindoleacetic acid, kynurenic acid (KYNA), and anthranilic acid (ANTH) as a proxy for quinolinic acid determination. At baseline, social affiliation scores were reduced in VFD-reared versus control subjects. CSF log KYNA and log KYNA/KYN ratio were lower in VFD-reared versus control subjects. CSF log KYNA/KYN was positively correlated with CSF log ANTH in VFD only (r = 0.82). Controlling for log KYNA/KYN, log ANTH was elevated in VFD-reared subjects versus controls. CSF log KYNA/KYN obtained post-RSP was positively correlated with mean social affiliation scores during RSP, specifically in VFD. ELS is associated with a reduced neuroprotective and increased neurotoxic pathway products. That the two contrasting processes are paradoxically correlated following ELS suggests a cross-talk between two opposing KP enzymatic systems.
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Affiliation(s)
- Jeremy D Coplan
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, United States
| | - Roza George
- Firstox Laboratories, Irving, TX, United States
| | - Shariful A Syed
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Annalam V Rozenboym
- Department of Biological Sciences, Kingsborough Community College, CUNY, Brooklyn, NY, United States
| | - Jean E Tang
- Teachers College, Columbia University, New York, NY, United States
| | - Sasha L Fulton
- Icahn School of Medicine at Mount Sinai, New York, NY, United States
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Yin N, Yan E, Duan W, Mao C, Fei Q, Yang C, Hu Y, Xu X. The role of microglia in chronic pain and depression: innocent bystander or culprit? Psychopharmacology (Berl) 2021; 238:949-958. [PMID: 33544194 DOI: 10.1007/s00213-021-05780-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/28/2021] [Indexed: 12/15/2022]
Abstract
Clinical evidence shows that chronic pain and depression often accompany each other, but the underlying pathogenesis of comorbid chronic pain and depression remains mostly undetermined. Biotechnology is gradually revealing the phenotype and function of microglia, with great progress regarding microglia's role in neurodegeneration, depression, chronic pain, and other conditions. This article summarizes the role of microglia in chronic pain, depression, and comorbidities, which is conducive to finding new targets to treat chronic pain and depression.
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Affiliation(s)
- Nan Yin
- Department of Anesthesiology, Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Enshi Yan
- Department of Anesthesiology, Affiliated Stomatological Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Wenbin Duan
- Department of Anesthesiology, The Second Affiliated Changzhou People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Changyuan Mao
- Department of Anesthesiology, The Second Affiliated Changzhou People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Qin Fei
- Department of Anesthesiology, The Second Affiliated Changzhou People's Hospital of Nanjing Medical University, Changzhou, 213000, China
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yimin Hu
- Department of Anesthesiology, The Second Affiliated Changzhou People's Hospital of Nanjing Medical University, Changzhou, 213000, China.
| | - Xiaolin Xu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Branchi I, Poggini S, Capuron L, Benedetti F, Poletti S, Tamouza R, Drexhage HA, Penninx BWJH, Pariante CM. Brain-immune crosstalk in the treatment of major depressive disorder. Eur Neuropsychopharmacol 2021; 45:89-107. [PMID: 33386229 DOI: 10.1016/j.euroneuro.2020.11.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/04/2020] [Accepted: 11/30/2020] [Indexed: 02/08/2023]
Abstract
A growing number of studies are pointing out the need for a conceptual shift from a brain-centered to a body-inclusive approach in mental health research. In this perspective, the link between the immune and the nervous system, which are deeply interconnected and continuously interacting, is one of the most important novel theoretical framework to investigate the biological bases of major depressive disorder and, more in general, mental illness. Indeed, depressed patients show high levels of inflammatory markers, administration of pro-inflammatory drugs triggers a depressive symptomatology and antidepressant efficacy is reduced by excessive immune system activation. A number of molecular and cellular mechanisms have been hypothesized to act as a link between the immune and brain function, thus representing potential pharmacologically targetable processes for the development of novel and effective therapeutic strategies. These include the modulation of the kynurenine pathway, the crosstalk between metabolic and inflammatory processes, the imbalance in acquired immune responses, in particular T cell responses, and the interplay between neural plasticity and immune system activation. In the personalized medicine approach, the assessment and regulation of these processes have the potential to lead, respectively, to novel diagnostic approaches for the prediction of treatment outcome according to the patient's immunological profile, and to improved efficacy of antidepressant compounds through immune modulation.
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Affiliation(s)
- Igor Branchi
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy.
| | - Silvia Poggini
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Lucile Capuron
- University of Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, Bordeaux, France
| | - Francesco Benedetti
- Division of Neuroscience, Psychiatry and Clinical Psychobiology Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy; University Vita-Salute San Raffaele, Milano, Italy
| | - Sara Poletti
- Division of Neuroscience, Psychiatry and Clinical Psychobiology Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy; University Vita-Salute San Raffaele, Milano, Italy
| | - Ryad Tamouza
- Département Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), Laboratoire Neuro-psychiatrie translationnelle, AP-HP, Université Paris Est Créteil, INSERM U955, IMRB, Hôpital Henri Mondor, Fondation FondaMental, F-94010 Créteil, France
| | - Hemmo A Drexhage
- Department of Immunology, ErasmusMC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam UMC, Department of Amsterdam Public Health Research Institute and Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Carmine M Pariante
- Department of Psychological Medicine, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
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- Département Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), Laboratoire Neuro-psychiatrie translationnelle, AP-HP, Université Paris Est Créteil, INSERM U955, IMRB, Hôpital Henri Mondor, Fondation FondaMental, F-94010 Créteil, France
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Abstract
There is a growing body of evidence supporting the association between immune processes and psychopathology, including major depressive disorder (MDD). However, lack of diagnostic specificity has given rise to a search for specific symptom types, as opposed to more heterogeneous categorical diagnoses, linked to increased inflammation. One such symptom could be anhedonia, which is not only a key feature of MDD, but also a pervasive and persistent transdiagnostic symptom. To evaluate the specific role of anhedonia as well as categorical MDD diagnoses, we examined endotoxin-evoked immune responses in vitro in relation to current levels of anhedonia and history of recurrent MDD (rMDD) in a sample of adults recruited from the community. A total of 39 participants either had a history of rMDD (n = 20) or no lifetime history of any MDD episodes (n = 19). The average age of participants was 36.81 years and the majority were women (87.2%) and Caucasian (76.3%). We found that higher levels of current anhedonia, but not history of rMDD, were associated with increased lipopolysaccharide-stimulated levels of inflammatory markers even after we statistically adjusted for the potential influence of participants’ demographic (age, sex, ethnicity, income) and physiological (body temperature, BMI) characteristics, current symptoms of depression and anxiety, and the time of day of the sample collection. These findings highlight the relation of anhedonia specifically, rather than rMDD more generally, with inflammatory processes and identify endotoxin-stimulated cytokine production as a plausible biological marker of current anhedonia.
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Outdoor Air Pollution and Depression in Canada: A Population-Based Cross-Sectional Study from 2011 to 2016. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052450. [PMID: 33801515 PMCID: PMC7967582 DOI: 10.3390/ijerph18052450] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/13/2022]
Abstract
To assess whether exposure to increased levels of outdoor air pollution is associated with psychological depression, six annual iterations of the Canadian Community Health Survey (n ≈ 127,050) were used to estimate the prevalence of a major depressive episode (2011-2014) or severity of depressive symptoms (2015-2016). Survey data were linked with outdoor air pollution data obtained from the Canadian Urban Environmental Health Research Consortium, with outdoor air pollution represented by fine particulate matter ≤2.5 micrometers (μm) in diameter (PM2.5), ozone (O3), sulfur dioxide (SO2), and nitrogen dioxide (NO2). Log-binomial models were used to estimate the association between outdoor air pollution and depression, and included adjustment for age, sex, marital status, income, education, employment status, urban versus rural households, cigarette smoking, and chronic illness. No evidence of associations for either depression outcomes were found. Given the generally low levels of outdoor air pollution in Canada, these findings should be generalized with caution. It is possible that a meaningful association with major depression may be observed in regions of the world where the levels of outdoor air pollution are greater, or during high pollution events over brief time intervals. Future research is needed to replicate these findings and to further investigate these associations in other regions and populations.
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Cheng SW, Li JX, Chien YC, Chang JPC, Shityakov S, Huang SY, Galecki P, Su KP. Genetic Variations of Ionotropic Glutamate Receptor Pathways on Interferon-α-induced Depression in Patients with Hepatitis C Viral Infection. Brain Behav Immun 2021; 93:16-22. [PMID: 33161164 DOI: 10.1016/j.bbi.2020.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/15/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
IMPORTANCE The most supportive evidence of the inflammation theory of depression is that up to one-third of patients with Hepatitis C virus infection (HCV) develop clinical depressive episodes during interferon-α (IFN-α) therapy. As glutamate-mediated excitotoxicity has been found to be a consequence of excessive inflammation and a pathogenic mechanism of depression, it is plausible to investigate genes on ionotropic glutamate receptor pathways. OBJECTIVE To identify the at-risk genetic variations on ionotropic glutamate receptor pathways for interferon-α-induced depression. METHOD We assessed 291 patients with chronic HCV undergoing IFN-α therapy and analyzed the single nucleotide polymorphisms (SNPs) in genes related to ionotropic glutamate receptors in this prospective case-control study. Patients who developed IFN-α-induced depression anytime during the treatment were defined as the case group, while those who did not were defined as the control group. Genomic DNA was extracted from peripheral blood and analyzed by Affymetrix TWB array. Allelic and haplotype association tests were conducted using χ2 tests to assess the difference in allele and haplotype frequencies between cases and controls. Additionally, we performed 5000 permutations to control gene-wide family-wise error rates and create empirical p-values. Stratified analyses were then done to control for confounders and adjust odds ratios for our significant SNPs. We also did an additional stratified analysis to re-assess genes with near-significant SNPs (empirical p-value=0.05-0.10), employing Bonferroni correction with the effective number of independent tests to control gene-wide family-wise error rates. RESULTS The minor and major allele frequencies of rs7542 (empirical p-value=0.0310) in MAPK3, rs3026685 (empirical p-value=0.0378) in PICK1, rs56005409 (empirical p-value=0.0332) in PRKCA, rs12914792 (empirical p-value=0.0096), rs17245773 (empirical p-value=0.0340) in RASGRF1, and rs78387863 (empirical p-value=0.0086), rs74365480 (empirical p-value=0.0200) in RASGRF2 were found significantly different between cases and controls. Haplotype association tests also revealed one significant haplotype in PRKCA (empirical p-value=0.0200) and one in RASGRF1 (empirical p-value=0.0048). Stratified analyses showed no signs of confounders for most of our significant SNPs, except for rs78387863 in RASGRF2. After a re-assessment of our near-significant genes by stratified analyses, two SNPs in GRIN2B turned significant. CONCLUSIONS This study provided supportive evidence of the involvement of the RAS/RAF/mitogen-activated protein kinase (MAPK) signaling pathway and glutamate ionotropic receptor AMPA type subunit 2(GluR2) transportation in the pathogenesis of IFN-α-induced depression.
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Affiliation(s)
- Szu-Wei Cheng
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Jing-Xing Li
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Yu-Chuan Chien
- Department of Psychiatry and Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Jane Pei-Chen Chang
- College of Medicine, China Medical University, Taichung, Taiwan; Department of Psychiatry and Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Sergey Shityakov
- College of Medicine, China Medical University, Taichung, Taiwan; Department of Psychiatry and Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Department of Bioinformatics, Würzburg University, Würzburg, Germany
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Piotr Galecki
- Department of Adult Psychiatry, Medical University of Lodz, Lodz, Poland
| | - Kuan-Pin Su
- College of Medicine, China Medical University, Taichung, Taiwan; Department of Psychiatry and Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; An-Nan Hospital, China Medical University, Tainan, Taiwan.
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Bonaterra GA, Mierau O, Hofmann J, Schwarzbach H, Aziz-Kalbhenn H, Kolb C, Kinscherf R. In Vitro Effects of St. John's Wort Extract Against Inflammatory and Oxidative Stress and in the Phagocytic and Migratory Activity of Mouse SIM-A9 Microglia. Front Pharmacol 2021; 11:603575. [PMID: 33628177 PMCID: PMC7898673 DOI: 10.3389/fphar.2020.603575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/10/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction: Herbal medicinal plants as Hypericum perforatum L., known as St. John’s wort (SJW) have been in use for a long time. SJW that is specifically used for the treatment of depressive disorders. Inflammatory cytokines derived from microglia play an important role in the regulation of the synthesis and reuptake of glutamate and influence synaptic function, morphology and neuronal plasticity. The present study was performed to investigate, whether STW3-VI, a special SJW extract has protective effects on mouse SIM-A9 microglia against cytotoxic and proinflammatory effects of ROS, glutamate, NMDA or cortisol. Additionally, we investigated the effects of SJW on migratory and phagocytic properties of microglia. Results: Pre-treatment (48 h) of microglia with STW3-VI (5 or 10 μg/ml)—in contrast to desipramine—inhibited the H2O2-induced TNF-α release by 20–40%. Pre-treatment (48 h) of microglia with STW3-VI (5 or 10 μg/ml) delayed the 3 or 4 mM H2O2-induced intracellular ROS level by 26.9 and 44.4%, respectively. Furthermore, pre-treatment (48 h) of microglia with STW3-VI (5 μg/ml) - in contrast to desipramine - lowered the glutamate-induced cytotoxicity by 13.2%. Besides, pre-treatment (48 h) of microglia with STW3-VI (5 or 10 μg/ml) or desipramine (5 µM) inhibited the NMDA-induced decrease of the viability by 16.5–28.8% or 12%, respectively. Finally, pre-treatment (48 h) of microglia with STW3-VI (5 or 10 μg/ml)—in contrast to desipramine - reduced the cortisol-induced cytotoxicity by 15.5 and 12.9%. Treatment of microglia with STW3-VI (10 or 100 μg/ml) increased the migratory and the phagocytic capacities by 100 and 40%. Conclusion: Our data provide evidence that STW3-VI—in contrast to desipramine - protects microglia from oxidative stress, NMDA- or glutamate-induced cytotoxicity, and has anti-inflammatory properties that are accompanied by improvement of their migratory and phagocytic capacity. These protective (particularly the anti-inflammatory) properties may be beneficial in the treatment of depressive disorders.
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Affiliation(s)
- Gabriel A Bonaterra
- Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, Germany
| | - Olga Mierau
- Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, Germany
| | - Johanna Hofmann
- Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, Germany
| | - Hans Schwarzbach
- Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, Germany
| | - Heba Aziz-Kalbhenn
- Bayer Consumer Health Division, Phytomedicines Supply and Development Center, Steigerwald Arzneimittelwerk GmbH, Darmstadt, Germany
| | - Christiane Kolb
- Bayer Consumer Health Division, Phytomedicines Supply and Development Center, Steigerwald Arzneimittelwerk GmbH, Darmstadt, Germany
| | - Ralf Kinscherf
- Department of Medical Cell Biology, Anatomy and Cell Biology, University of Marburg, Marburg, Germany
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Ermakov EA, Dmitrieva EM, Parshukova DA, Kazantseva DV, Vasilieva AR, Smirnova LP. Oxidative Stress-Related Mechanisms in Schizophrenia Pathogenesis and New Treatment Perspectives. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8881770. [PMID: 33552387 PMCID: PMC7847339 DOI: 10.1155/2021/8881770] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/15/2020] [Accepted: 01/02/2021] [Indexed: 02/07/2023]
Abstract
Schizophrenia is recognized to be a highly heterogeneous disease at various levels, from genetics to clinical manifestations and treatment sensitivity. This heterogeneity is also reflected in the variety of oxidative stress-related mechanisms contributing to the phenotypic realization and manifestation of schizophrenia. At the molecular level, these mechanisms are supposed to include genetic causes that increase the susceptibility of individuals to oxidative stress and lead to gene expression dysregulation caused by abnormal regulation of redox-sensitive transcriptional factors, noncoding RNAs, and epigenetic mechanisms favored by environmental insults. These changes form the basis of the prooxidant state and lead to altered redox signaling related to glutathione deficiency and impaired expression and function of redox-sensitive transcriptional factors (Nrf2, NF-κB, FoxO, etc.). At the cellular level, these changes lead to mitochondrial dysfunction and metabolic abnormalities that contribute to aberrant neuronal development, abnormal myelination, neurotransmitter anomalies, and dysfunction of parvalbumin-positive interneurons. Immune dysfunction also contributes to redox imbalance. At the whole-organism level, all these mechanisms ultimately contribute to the manifestation and development of schizophrenia. In this review, we consider oxidative stress-related mechanisms and new treatment perspectives associated with the correction of redox imbalance in schizophrenia. We suggest that not only antioxidants but also redox-regulated transcription factor-targeting drugs (including Nrf2 and FoxO activators or NF-κB inhibitors) have great promise in schizophrenia. But it is necessary to develop the stratification criteria of schizophrenia patients based on oxidative stress-related markers for the administration of redox-correcting treatment.
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Affiliation(s)
- Evgeny A. Ermakov
- Laboratory of Repair Enzymes, Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Elena M. Dmitrieva
- Laboratory of Molecular Genetics and Biochemistry, Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk 634014, Russia
| | - Daria A. Parshukova
- Laboratory of Molecular Genetics and Biochemistry, Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk 634014, Russia
| | | | | | - Liudmila P. Smirnova
- Laboratory of Molecular Genetics and Biochemistry, Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk 634014, Russia
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Li Y, Jiang Q, Wang L. Appetite Regulation of TLR4-Induced Inflammatory Signaling. Front Endocrinol (Lausanne) 2021; 12:777997. [PMID: 34899611 PMCID: PMC8664591 DOI: 10.3389/fendo.2021.777997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/04/2021] [Indexed: 12/20/2022] Open
Abstract
Appetite is the basis for obtaining food and maintaining normal metabolism. Toll-like receptor 4 (TLR4) is an important receptor expressed in the brain that induces inflammatory signaling after activation. Inflammation is considered to affect the homeostatic and non-homeostatic systems of appetite, which are dominated by hypothalamic and mesolimbic dopamine signaling. Although the pathological features of many types of inflammation are known, their physiological functions in appetite are largely unknown. This review mainly addresses several key issues, including the structures of the homeostatic and non-homeostatic systems. In addition, the mechanism by which TLR4-induced inflammatory signaling contributes to these two systems to regulate appetite is also discussed. This review will provide potential opportunities to develop new therapeutic interventions that control appetite under inflammatory conditions.
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Affiliation(s)
- Yongxiang Li
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, China
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - Qingyan Jiang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, China
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- *Correspondence: Lina Wang, ; Qingyan Jiang,
| | - Lina Wang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, South China Agricultural University, Guangzhou, China
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
- *Correspondence: Lina Wang, ; Qingyan Jiang,
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43
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Peeraphong L. Medicinal uses of agarwood. CHINESE MEDICINE AND CULTURE 2021. [DOI: 10.4103/cmac.cmac_43_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Van Dyk K, Siddarth P, Rossetti M, Ercoli LM, Milillo MM, Lavretsky H. Memantine can protect against inflammation-based cognitive decline in geriatric depression. Brain Behav Immun Health 2020; 9:100167. [PMID: 34589902 PMCID: PMC8474499 DOI: 10.1016/j.bbih.2020.100167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Geriatric depression is frequently accompanied by cognitive complaints and inflammation that increase risk for treatment-resistant depression and dementia. Memantine, a neuroprotective drug, can improve depression, inflammation, and help prevent cognitive decline. In our six-month clinical trial, escitalopram/memantine (ESC/MEM) improved mood and cognition compared to escitalopram/placebo treatment (ESC/PBO; NCT01902004). In this report, we examined the impact of baseline inflammation on mood and cognitive outcomes. MATERIALS AND METHODS We measured a panel of inflammatory cytokine markers using Human 38-plex magnetic cytokine/chemokine kits (EMD Millipore, HCYTMAG-60K-PX38) in 90 older adults 60 years and older with major depression enrolled in a 6-month double-blind placebo-controlled trial of escitalopram + memantine (ESC/MEM) in depressed older adults with subjective memory complaints. Four cytokine factors were derived and linear models were estimated to examine the predictive ability of cytokine levels on treatment induced change in depression and cognition. RESULTS Of the 90 randomized participants, 62 completed the 6-month follow up assessment. Both groups improved significantly on depression severity (HAM-D score), but not on cognitive outcomes at six months. Cytokine factor scores were not significantly different between ESC/MEM (n = 45) and ESC/PBO (n = 45) at baseline. Pro-inflammatory biomarkers at baseline predicted a decline in executive functioning in the ESC/PBO group but not in the ESC/MEM group, interaction F(1,52) = 4.63, p = .04. DISCUSSION In this exploratory analysis, the addition of memantine to escitalopram provided a protective effect on executive functioning in older depressed adults. Future studies are needed to replicate the association of cytokine markers to antidepressant and neuroprotective treatment-related change in cognition in geriatric depression.
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Affiliation(s)
- Kathleen Van Dyk
- Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
| | - Prabha Siddarth
- Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
| | - Maura Rossetti
- UCLA Immunogenetics Center, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Linda M. Ercoli
- Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
| | - Michaela M. Milillo
- Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
| | - Helen Lavretsky
- Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
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Zhai X, Liu J, Ni A, Ye J. MiR-497 promotes microglia activation and proinflammatory cytokines production in chronic unpredictable stress-induced depression via targeting FGF2. J Chem Neuroanat 2020; 110:101872. [PMID: 33068702 DOI: 10.1016/j.jchemneu.2020.101872] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 09/14/2020] [Accepted: 10/10/2020] [Indexed: 12/15/2022]
Abstract
Depression is one of important prevalent psychiatric disorders worldwide. MiR-497 is considered as a diagnostic biomarker and a promising therapeutic target in cancers. However, the role of miR-497 in depression remains unknown. In this study, we demonstrated that CUS induced depression-like behaviors and overexpression of miR-497 in rats. Interestingly, knockdown miR-497 ameliorated CUS-induced depressive-like behavior in rats. Moreover, knockdown of miR-497 inhibited the activation of microglia and the production of proinflammatory cytokines including IL-6, IL-1β, MCP-1 and TNF-α in CUS-induced rats. Luciferase activity assay proved that Fibroblast Growth Factor-2 (FGF2) was a direct target of miR-497 and modulated by miR-497 in microglia. In rescue experiments, overexpression of FGF2 inhibited miR-497-induced proinflammatory cytokines and iNOS expression. These results showed that miR-497 aggravated hippocampal microglial activation in CUS-induced depression in rat via targeting FGF2, providing a novel potential target for treatment of depression.
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Affiliation(s)
- Xiaoyan Zhai
- Department of Clinical Psychology, Hebei General Hospital, Shijiazhuang City, Hebei Province, 050051, China
| | - Jing Liu
- Department of Clinical Psychology, Hebei General Hospital, Shijiazhuang City, Hebei Province, 050051, China
| | - Aihua Ni
- Department of Clinical Psychology, Hebei General Hospital, Shijiazhuang City, Hebei Province, 050051, China
| | - Jun Ye
- Department of Neurology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
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46
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Thompson C, Szabo A. Psychedelics as a novel approach to treating autoimmune conditions. Immunol Lett 2020; 228:45-54. [PMID: 33035575 DOI: 10.1016/j.imlet.2020.10.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/12/2020] [Accepted: 10/01/2020] [Indexed: 12/12/2022]
Abstract
With a rise in the incidence of autoimmune diseases (AiD), health care providers continue to seek out more efficacious treatment approaches for the AiD patient population. Classic serotonergic psychedelics have recently been gaining public and professional interest as novel interventions to a number of mental health afflictions. Psychedelics have also been shown to be able to modulate immune functions, however, while there has been great interest to researching into their psychotherapeutic applications, there has so far been very little exploration into the potential to treat inflammatory and immune-related diseases with these compounds. A handful of studies from a variety of fields suggest that psychedelics do indeed have effects in the body that may attenuate the outcome of AiD. This literature review explores existing evidence that psychedelic compounds may offer a potential novel application in the treatment of pathologies related to autoimmunity. We propose that psychedelics hold the potential to attenuate or even resolve autoimmunity by targeting psychosomatic origins, maladaptive chronic stress responses, inflammatory pathways, immune modulation and enteric microbiome populations.
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Affiliation(s)
| | - Attila Szabo
- NORMENT Center of Excellence (CoE), Institute of Clinical Medicine, University of Oslo, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.
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Fritz M, Klawonn AM, Zhao Q, Sullivan EV, Zahr NM, Pfefferbaum A. Structural and biochemical imaging reveals systemic LPS-induced changes in the rat brain. J Neuroimmunol 2020; 348:577367. [PMID: 32866714 DOI: 10.1016/j.jneuroim.2020.577367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022]
Abstract
Despite mounting evidence for the role of inflammation in Major Depressive Disorder (MDD), in vivo preclinical investigations of inflammation-induced negative affect using whole brain imaging modalities are scarce, precluding a valid model within which to evaluate pharmacological interventions. Here we used an E. coli lipopolysaccharide (LPS)-based model of inflammation-induced depressive signs in rats to explore brain changes using multimodal neuroimaging methods. During the acute phase of the LPS response (2 h post injection), prior to the emergence of a task-quantifiable depressive phenotype, striatal glutamine levels and splenial, retrosplenial, and peri-callosal hippocampal cortex volumes were greater than at baseline. LPS-induced depressive behaviors observed at 24 h, however, occurred concurrently with lower than control levels of striatal glutamine and a reversibility of volume expansion (i.e., shrinkage of splenial, retrosplenial, and peri-callosal hippocampal cortex to baseline volumes). In both striatum and hippocampus at 24 h, mRNA expression in LPS relative to control animals demonstrated alterations in enzymes and transporters regulating glutamine homeostasis. Collectively, the observed behavioral, in vivo structural and metabolic, and mRNA expression alterations suggest a critical role for astrocytic regulation of inflammation-induced depressive behaviors.
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Affiliation(s)
- Michael Fritz
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America
| | - Anna M Klawonn
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America
| | - Qingyu Zhao
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America
| | - Edith V Sullivan
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America; Neuroscience Program, SRI International, Menlo Park, CA 94025, United States of America
| | - Natalie M Zahr
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America; Neuroscience Program, SRI International, Menlo Park, CA 94025, United States of America.
| | - Adolf Pfefferbaum
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford University, Stanford, CA 94304, United States of America; Neuroscience Program, SRI International, Menlo Park, CA 94025, United States of America
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Efficacy of adjunctive infliximab vs. placebo in the treatment of anhedonia in bipolar I/II depression. Brain Behav Immun 2020; 88:631-639. [PMID: 32380271 DOI: 10.1016/j.bbi.2020.04.063] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/22/2020] [Accepted: 04/25/2020] [Indexed: 12/26/2022] Open
Abstract
We investigated the efficacy of tumour necrosis factor (TNF)-α antagonist infliximab on a measure of anhedonia amongst individuals with bipolar I/II depression (ClinicalTrials.gov identifier NCT02363738). Adults (ages 18-65) with bipolar I/II disorder currently experiencing a major depressive episode with a higher probability of inflammatory activity (i.e., meeting one or more of the following inflammatory/metabolic criteria: obesity and dyslipidemia/hypertension, daily cigarette smoking, diabetes mellitus, migraine, inflammatory bowel disease, and/or C-reactive protein level of ⩾5 mg/L) were enrolled in a double-blind, 12-week clinical trial of adjunctive infliximab (5 mg/kg) and saline control, which were administered at weeks 0, 2, and 6. The primary outcome measure for the present secondary analysis was change in the Snaith-Hamilton Pleasure Scale (SHAPS) total score between placebo- and infliximab-treated subjects from baseline to weeks 6 and 12. Plasma concentrations of TNF-α and soluble TNF receptors (sTNFR) 1 and 2 were assessed at weeks 0, 2, 6, and 12. Sixty eligible adults received treatment with infliximab (n=29) or placebo (n=31); 47 subjects completed the study (infliximab: n=21, placebo: n=26). Overall, infliximab-randomized subjects exhibited significantly larger increases in SHAPS total score, denoting greater reductions in anhedonic symptoms, when compared to placebo-randomized subjects (treatment × time interaction effect: χ2=7.15,df=2,p=0.03). Anti-anhedonic efficacy was moderated by baseline plasma levels of TNF-α and sTNFR1, but not by changes in TNF-α or sTNFR1 concentrations. Baseline and changes in sTNFR2 concentrations did not moderate anti-anhedonic efficacy. Infliximab significantly improved a measure of anhedonia relative to placebo in adults with bipolar I/II depression at week 6; intervention efficacy was not sustained 6 weeks after the final infusion.
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Haroon E, Welle JR, Woolwine BJ, Goldsmith DR, Baer W, Patel T, Felger JC, Miller AH. Associations among peripheral and central kynurenine pathway metabolites and inflammation in depression. Neuropsychopharmacology 2020; 45:998-1007. [PMID: 31940661 PMCID: PMC7162907 DOI: 10.1038/s41386-020-0607-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/23/2019] [Accepted: 12/30/2019] [Indexed: 12/17/2022]
Abstract
Kynurenine pathway (KP) metabolites are believed to be a link between inflammation and depression through effects on brain glutamate receptors. However, neither the relationship between plasma and cerebrospinal fluid (CSF) KP metabolites nor their association with inflammatory mediators is well-established in depression. Moreover, the clinical profile associated with combined activation of plasma inflammatory and kynurenine pathways is unknown. Accordingly, plasma and CSF-KP metabolites and inflammatory markers along with depressive symptoms and antidepressant treatment response were measured in 72 unmedicated depressed patients. Following bivariate analyses, component factors representing immune and kynurenine variables in the plasma and CSF were extracted and were used to examine directionality of associations in a path model. In addition, patients were clustered using individual markers that most accounted for the association between plasma immune and KP systems. Path analysis revealed a directional association extending from plasma inflammatory markers to plasma kynurenines, to CSF kynurenines. Among immune markers, plasma tumor necrosis factor (TNF) was robustly associated with plasma kynurenine (KYN) and KYN/tryptophan (TRP), which was in turn significantly associated with CSF KYN, kynurenic acid, and quinolinic acid. Clustering of patients based on plasma TNF and KYN/TRP yielded subgroups of high (N = 17) and low (N = 55) TNF-KYN/TRP groups. High TNF-KYN/TRP subjects exhibited greater depression severity, anhedonia, and treatment nonresponse. In conclusion, plasma-KP metabolites may mediate an inflammation-associated depressive symptom profile via CNS KP metabolites that can serve as a target for intervention at the level of inflammation, peripheral KYN metabolism, KYN transport to the brain, or effects of KP metabolites on glutamate receptors.
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Affiliation(s)
- Ebrahim Haroon
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, 30322, USA.
| | - James R. Welle
- 0000000107903411grid.241116.1Department of Primary Care and Internal Medicine, University of Colorado School of Medicine, Denver, CO 80045 USA
| | - Bobbi J. Woolwine
- 0000 0001 0941 6502grid.189967.8Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - David R. Goldsmith
- 0000 0001 0941 6502grid.189967.8Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Wendy Baer
- 0000 0001 0941 6502grid.189967.8Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Trusharth Patel
- 0000 0001 0941 6502grid.189967.8Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Jennifer C. Felger
- 0000 0001 0941 6502grid.189967.8Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Andrew H. Miller
- 0000 0001 0941 6502grid.189967.8Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322 USA
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50
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Khan AR, Geiger L, Wiborg O, Czéh B. Stress-Induced Morphological, Cellular and Molecular Changes in the Brain-Lessons Learned from the Chronic Mild Stress Model of Depression. Cells 2020; 9:cells9041026. [PMID: 32326205 PMCID: PMC7226496 DOI: 10.3390/cells9041026] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/14/2020] [Accepted: 04/19/2020] [Indexed: 02/07/2023] Open
Abstract
Major depressive disorder (MDD) is a severe illness imposing an increasing social and economic burden worldwide. Numerous rodent models have been developed to investigate the pathophysiology of MDD. One of the best characterized and most widely used models is the chronic mild stress (CMS) model which was developed more than 30 years ago by Paul Willner. More than 2000 published studies used this model, mainly to assess novel compounds with potential antidepressant efficacy. Most of these studies examined the behavioral consequences of stress and concomitant drug intervention. Much fewer studies focused on the CMS-induced neurobiological changes. However, the stress-induced cellular and molecular changes are important as they may serve as potential translational biomarkers and increase our understanding of the pathophysiology of MDD. Here, we summarize current knowledge on the structural and molecular alterations in the brain that have been described using the CMS model. We discuss the latest neuroimaging and postmortem histopathological data as well as molecular changes including recent findings on microRNA levels. Different chronic stress paradigms occasionally deliver dissimilar findings, but the available experimental data provide convincing evidence that the CMS model has a high translational value. Future studies examining the neurobiological changes in the CMS model in combination with clinically effective antidepressant drug intervention will likely deliver further valuable information on the pathophysiology of MDD.
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Affiliation(s)
- Ahmad Raza Khan
- Centre of Biomedical Research, Sanjay Gandhi Post Graduate Institute (SGPGI) Campus, Lucknow-226017, U.P, India;
| | - Lili Geiger
- Neurobiology of Stress Research Group, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary;
- Department of Laboratory Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Ove Wiborg
- Department of Health Science and Technology, Aalborg University, 9220 Aalborg, Denmark;
| | - Boldizsár Czéh
- Neurobiology of Stress Research Group, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary;
- Department of Laboratory Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
- Correspondence:
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