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Bose D, Saha P, Roy S, Trivedi A, More M, Klimas N, Tuteja A, Chatterjee S. A Double-Humanized Mouse Model for Studying Host Gut Microbiome-Immune Interactions in Gulf War Illness. Int J Mol Sci 2024; 25:6093. [PMID: 38892281 PMCID: PMC11172868 DOI: 10.3390/ijms25116093] [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: 04/27/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Unraveling the multisymptomatic Gulf War Illness (GWI) pathology and finding an effective cure have eluded researchers for decades. The chronic symptom persistence and limitations for studying the etiologies in mouse models that differ significantly from those in humans pose challenges for drug discovery and finding effective therapeutic regimens. The GWI exposome differs significantly in the study cohorts, and the above makes it difficult to recreate a model closely resembling the GWI symptom pathology. We have used a double engraftment strategy for reconstituting a human immune system coupled with human microbiome transfer to create a humanized-mouse model for GWI. Using whole-genome shotgun sequencing and blood immune cytokine enzyme linked immunosorbent assay (ELISA), we show that our double humanized mice treated with Gulf War (GW) chemicals show significantly altered gut microbiomes, similar to those reported in a Veteran cohort of GWI. The results also showed similar cytokine profiles, such as increased levels of IL-1β, IL-6, and TNF R-1, in the double humanized model, as found previously in a human cohort. Further, a novel GWI Veteran fecal microbiota transfer was used to create a second alternative model that closely resembled the microbiome and immune-system-associated pathology of a GWI Veteran. A GWI Veteran microbiota transplant in humanized mice showed a human microbiome reconstitution and a systemic inflammatory pathology, as reflected by increases in interleukins 1β, 6, 8 (IL-1β, IL-6, IL-8), tumor necrosis factor receptor 1 (TNF R-1), and endotoxemia. In conclusion, though preliminary, we report a novel in vivo model with a human microbiome reconstitution and an engrafted human immune phenotype that may help to better understand gut-immune interactions in GWI.
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Affiliation(s)
- Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
| | - Punnag Saha
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
| | - Subhajit Roy
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
| | - Ayushi Trivedi
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
| | - Madhura More
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
| | - Nancy Klimas
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA;
| | - Ashok Tuteja
- Division of Gastroenterology, University of Utah School of Medicine, Salt Lake City, UT 84132, USA;
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (D.B.); (P.S.); (S.R.); (A.T.); (M.M.)
- Division of Infectious Disease, School of Medicine, University of California, Irvine, CA 92697, USA
- VA Research and Development, VA Long Beach Health Care, Long Beach, CA 90822, USA
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Rushendran R, Singh A, Ankul Singh S, Chitra V, Ilango K. A role of NLRP3 and MMP9 in migraine progression: a systematic review of translational study. Front Neurol 2024; 15:1307319. [PMID: 38836002 PMCID: PMC11148868 DOI: 10.3389/fneur.2024.1307319] [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: 10/04/2023] [Accepted: 04/24/2024] [Indexed: 06/06/2024] Open
Abstract
Background Migraines affect one billion individuals globally, with a higher occurrence among young adults and women. A significant survey in the United States indicated that 17.1% of women and 5.6% of men suffer from migraines. This study seeks to investigate the potential connection between NLRP3 and MMP9 in migraine pathology. Methods The research involved searching databases such as PubMed, Scopus, Science Direct, Google Scholar, and Proquest, with the search concluding on March 31, 2024. Following PRISMA guidelines, PICO data were collected, focusing exclusively on animal models induced by Nitroglycerine (10 mg/kg), while excluding clinical studies. Results The study, originally registered in Prospero Reg. No. CRD42022355893, conducted bias analysis using SYRCLE's RoB tool and evaluated author consensus using GraphPad v9.5.1. Out of 7,359 search results, 22 papers met the inclusion criteria. Inter-rater reliability among reviewers was assessed using Cohen's kappa statistics. Conclusion This review summarizes 22 preclinical studies on Nitroglycerin (NTG), NLRP3, MMP9, and related biomarkers in migraine. They reveal that NTG, especially at 10 mg/kg, consistently induces migraine-like symptoms in rodents by activating NLRP3 inflammasome and stimulating proinflammatory molecule production. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, CRD42022355893.
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Affiliation(s)
- Rapuru Rushendran
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Anuragh Singh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - S Ankul Singh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Vellapandian Chitra
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Chennai, India
| | - Kaliappan Ilango
- Department of Pharmaceutical Chemistry, Tagore College of Pharmacy, Chennai, India
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Cohen J, Mathew A, Dourvetakis KD, Sanchez-Guerrero E, Pangeni RP, Gurusamy N, Aenlle KK, Ravindran G, Twahir A, Isler D, Sosa-Garcia SR, Llizo A, Bested AC, Theoharides TC, Klimas NG, Kempuraj D. Recent Research Trends in Neuroinflammatory and Neurodegenerative Disorders. Cells 2024; 13:511. [PMID: 38534355 DOI: 10.3390/cells13060511] [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: 12/25/2023] [Revised: 03/03/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
Neuroinflammatory and neurodegenerative disorders including Alzheimer's disease (AD), Parkinson's disease (PD), traumatic brain injury (TBI) and Amyotrophic lateral sclerosis (ALS) are chronic major health disorders. The exact mechanism of the neuroimmune dysfunctions of these disease pathogeneses is currently not clearly understood. These disorders show dysregulated neuroimmune and inflammatory responses, including activation of neurons, glial cells, and neurovascular unit damage associated with excessive release of proinflammatory cytokines, chemokines, neurotoxic mediators, and infiltration of peripheral immune cells into the brain, as well as entry of inflammatory mediators through damaged neurovascular endothelial cells, blood-brain barrier and tight junction proteins. Activation of glial cells and immune cells leads to the release of many inflammatory and neurotoxic molecules that cause neuroinflammation and neurodegeneration. Gulf War Illness (GWI) and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are chronic disorders that are also associated with neuroimmune dysfunctions. Currently, there are no effective disease-modifying therapeutic options available for these diseases. Human induced pluripotent stem cell (iPSC)-derived neurons, astrocytes, microglia, endothelial cells and pericytes are currently used for many disease models for drug discovery. This review highlights certain recent trends in neuroinflammatory responses and iPSC-derived brain cell applications in neuroinflammatory disorders.
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Affiliation(s)
- Jessica Cohen
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Annette Mathew
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Kirk D Dourvetakis
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Estella Sanchez-Guerrero
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Rajendra P Pangeni
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Narasimman Gurusamy
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Kristina K Aenlle
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
- Miami VA Geriatric Research Education and Clinical Center (GRECC), Miami Veterans Affairs Healthcare System, Miami, FL 33125, USA
| | - Geeta Ravindran
- Cell Therapy Institute, Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Assma Twahir
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Dylan Isler
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Sara Rukmini Sosa-Garcia
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Axel Llizo
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Alison C Bested
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
| | - Theoharis C Theoharides
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Nancy G Klimas
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
- Miami VA Geriatric Research Education and Clinical Center (GRECC), Miami Veterans Affairs Healthcare System, Miami, FL 33125, USA
| | - Duraisamy Kempuraj
- Institute for Neuro-Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33328, USA
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Ribeiro-Davis A, Al Saeedy DY, Jahr FM, Hawkins E, McClay JL, Deshpande LS. Ketamine Produces Antidepressant Effects by Inhibiting Histone Deacetylases and Upregulating Hippocampal Brain-Derived Neurotrophic Factor Levels in a Diisopropyl Fluorophosphate-Based Rat Model of Gulf War Illness. J Pharmacol Exp Ther 2024; 388:647-654. [PMID: 37863487 PMCID: PMC10801753 DOI: 10.1124/jpet.123.001824] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 10/22/2023] Open
Abstract
Approximately one-third of Gulf War veterans suffer from Gulf War Illness (GWI), which encompasses mood disorders and depressive symptoms. Deployment-related exposure to organophosphate compounds has been associated with GWI development. Epigenetic modifications have been reported in GWI veterans. We previously showed that epigenetic histone dysregulations were associated with decreased brain-derived neurotrophic factor (BDNF) expression in a GWI rat model. GWI has no effective therapies. Ketamine (KET) has recently been approved by the Food and Drug Administration for therapy-resistant depression. Interestingly, BDNF upregulation underlies KET's antidepressant effect in GWI-related depression. Here, we investigated whether KET's effect on histone mechanisms signals BDNF upregulations in GWI. Male Sprague-Dawley rats were injected once daily with diisopropyl fluorophosphate (DFP; 0.5 mg/kg, s.c., 5 days). At 6 months following DFP exposure, KET (10 mg/kg, i.p.) was injected, and brains were dissected 24 hours later. Western blotting was used for protein expression, and epigenetic studies used chromatin immunoprecipitation methods. Dil staining was conducted for assessing dendritic spines. Our results indicated that an antidepressant dose of KET inhibited the upregulation of histone deacetylase (HDAC) enzymes in DFP rats. Furthermore, KET restored acetylated histone occupancy at the Bdnf promoter IV and induced BDNF protein expression in DFP rats. Finally, KET treatment also increased the spine density and altered the spine diversity with increased T-type and decreased S-type spines in DFP rats. Given these findings, we propose that KET's actions involve the inhibition of HDAC expression, upregulation of BDNF, and dendritic modifications that together ameliorates the pathologic synaptic plasticity and exerts an antidepressant effect in DFP rats. SIGNIFICANCE STATEMENT: This study offers evidence supporting the involvement of epigenetic histone pathways in the antidepressant effects of ketamine (KET) in a rat model of Gulf War Illness (GWI)-like depression. This effect is achieved through the modulation of histone acetylation at the Bdnf promoter, resulting in elevated brain-derived neurotrophic factor expression and subsequent dendritic remodeling in the hippocampus. These findings underscore the rationale for considering KET as a potential candidate for clinical trials aimed at managing GWI-related depression.
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Affiliation(s)
- Ana Ribeiro-Davis
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
| | - Dalia Y Al Saeedy
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
| | - Fay M Jahr
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
| | - Elisa Hawkins
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
| | - Joseph L McClay
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
| | - Laxmikant S Deshpande
- Departments of Neurology (A.R.-D., E.H., L.S.D.), Pharmacology and Toxicology (L.S.D.), School of Medicine, Virginia Commonwealth University, Richmond, Virginia and Department of Pharmacotherapy and Outcome Sciences (D.Y.A.S., F.M.J., J.L.M.), School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia
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Trivedi A, Bose D, Saha P, Roy S, More M, Skupsky J, Klimas NG, Chatterjee S. Prolonged Antibiotic Use in a Preclinical Model of Gulf War Chronic Multisymptom-Illness Causes Renal Fibrosis-like Pathology via Increased micro-RNA 21-Induced PTEN Inhibition That Is Correlated with Low Host Lachnospiraceae Abundance. Cells 2023; 13:56. [PMID: 38201260 PMCID: PMC10777912 DOI: 10.3390/cells13010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/21/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Gulf War (GW) veterans show gastrointestinal disturbances and gut dysbiosis. Prolonged antibiotic treatments commonly employed in veterans, especially the use of fluoroquinolones and aminoglycosides, have also been associated with dysbiosis. This study investigates the effect of prolonged antibiotic exposure on risks of adverse renal pathology and its association with gut bacterial species abundance in underlying GWI and aims to uncover the molecular mechanisms leading to possible renal dysfunction with aging. Using a GWI mouse model, administration of a prolonged antibiotic regimen involving neomycin and enrofloxacin treatment for 5 months showed an exacerbated renal inflammation with increased NF-κB activation and pro-inflammatory cytokines levels. Involvement of the high mobility group 1 (HMGB1)-mediated receptor for advanced glycation end products (RAGE) activation triggered an inflammatory phenotype and increased transforming growth factor-β (TGF-β) production. Mechanistically, TGF-β- induced microRNA-21 upregulation in the renal tissue leads to decreased phosphatase and tensin homolog (PTEN) expression. The above event led to the activation of protein kinase-B (AKT) signaling, resulting in increased fibronectin production and fibrosis-like pathology. Importantly, the increased miR-21 was associated with low levels of Lachnospiraceae in the host gut which is also a key to heightened HMGB1-mediated inflammation. Overall, though correlative, the study highlights the complex interplay between GWI, host gut dysbiosis, prolonged antibiotics usage, and renal pathology via miR-21/PTEN/AKT signaling.
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Affiliation(s)
- Ayushi Trivedi
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
| | - Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
| | - Punnag Saha
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
| | - Subhajit Roy
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
| | - Madhura More
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
| | | | - Nancy G. Klimas
- Institute for Neuro-Immune Medicine, College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33328, USA;
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA; (A.T.); (D.B.); (P.S.); (S.R.); (M.M.)
- Long Beach VA Medical Center, Long Beach, CA 90822, USA;
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of California, Irvine, CA 92697, USA
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6
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Ma L, Jiang X, Huang Q, Chen W, Zhang H, Pei H, Cao Y, Wang H, Li H. Traditional Chinese medicine for the treatment of Alzheimer's disease: A focus on the microbiota-gut-brain axis. Biomed Pharmacother 2023; 165:115244. [PMID: 37516021 DOI: 10.1016/j.biopha.2023.115244] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/11/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023] Open
Abstract
Alzheimer's disease (AD), the most frequent cause of dementia, is a neurodegenerative disorder characterised by a progressive decline in cognitive function that is associated with the formation of amyloid beta plaques and neurofibrillary tangles. Gut microbiota comprises of a complex community of microorganisms residing in the gastrointestinal ecosystem. These microorganisms can participate in gut-brain axis activities, thereby affecting cognitive function and associated behaviours. Increasing evidence has indicated that gut dysbiosis can jeopardise host immune responses and promote inflammation, which may be an initiating factor for the onset and evolution of AD. Traditional Chinese medicine (TCM) is a promising resource which encompasses immense chemical diversity and multiple-target characteristics for the treatment of AD. Many TCMs regulate the gut microbiota during treatment of diseases, indicating that gut microbiota may be an important target for TCM efficacy. In this review, we summarised the role of the microbiota-gut-brain axis in the development of AD and the effects of TCM in treating AD by regulating the gut microbiota. We anticipate that this review will provide novel perspectives and strategies for future AD research and treatments.
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Affiliation(s)
- Lina Ma
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Xuefan Jiang
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Qiaoyi Huang
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Wenxuan Chen
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Huiqin Zhang
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Hui Pei
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Yu Cao
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Huichan Wang
- Institute of Geriatrics, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, PR China
| | - Hao Li
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, PR China.
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Chen Y, Chen J, Wei H, Gong K, Meng J, Long T, Guo J, Hong J, Yang L, Qiu J, Xiong K, Wang Z, Xu Q. Akkermansia muciniphila-Nlrp3 is involved in the neuroprotection of phosphoglycerate mutase 5 deficiency in traumatic brain injury mice. Front Immunol 2023; 14:1172710. [PMID: 37287985 PMCID: PMC10242175 DOI: 10.3389/fimmu.2023.1172710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/03/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction Gut-microbiota-brain axis is a potential treatment to decrease the risk of chronic traumatic encephalopathy following traumatic brain injury (TBI). Phosphoglycerate mutase 5 (PGAM5), a mitochondrial serine/threonine protein phosphatase, resides in mitochondrial membrane and regulates mitochondrial homeostasis and metabolism. Mitochondria mediates intestinal barrier and gut microbiome. Objectives This study investigated the association between PGAM5 and gut microbiota in mice with TBI. Methods The controlled cortical impact injury was established in mice with genetically-ablated Pgam5 (Pgam5-/-) or wild type, and WT male mice were treated with fecal microbiota transplantation (FMT) from male Pgam5-/- mice or Akkermansia muciniphila (A. muciniphila). Then the gut microbiota abundance, blood metabolites, neurological function, and nerve injury were detected. Results Treated with antibiotics for suppressing gut microbiota in Pgam5-/- mice partially relieved the role of Pgam5 deficiency in the improvement of initial inflammatory factors and motor dysfunction post-TBI. Pgam5 knockout exhibited an increased abundance of A. muciniphila in mice. FMT from male Pgam5-/- mice enabled better maintenance of amino acid metabolism and peripherial environment than that in TBI-vehicle mice, which suppressed neuroinflammation and improved neurological deficits, and A. muciniphila was negatively associated with intestinal mucosal injury and neuroinflammation post-TBI. Moreover, A. muciniphila treatment ameliorated neuroinflammation and nerve injury by regulating Nlrp3 inflammasome activation in cerebral cortex with TBI. Conclusion Thus, the present study provides evidence that Pgam5 is involved in gut microbiota-mediated neuroinflammation and nerve injury, with A. muciniphila-Nlrp3 contributing to peripheral effects.
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Affiliation(s)
- Yuhua Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Central Laboratory, Xi’an Peihua University, Xi’an, Shaanxi, China
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Junhui Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hong Wei
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Rehabilitation Teaching and Research, Xi’an Siyuan University, Xi’an, China
| | - Kai Gong
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jiao Meng
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Central Laboratory, Xi’an Peihua University, Xi’an, Shaanxi, China
| | - Tianlin Long
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
| | - Jianfeng Guo
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jun Hong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Lingjian Yang
- School of Chemistry & Chemical Engineering, Ankang University, Ankang, China
| | - Junling Qiu
- Department of Cardiology, First Hospital of Northwestern University, Shannxi, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, Hainan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Zhanxiang Wang
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Quanhua Xu
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
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Slevin E, Koyama S, Harrison K, Wan Y, Klaunig JE, Wu C, Shetty AK, Meng F. Dysbiosis in gastrointestinal pathophysiology: Role of the gut microbiome in Gulf War Illness. J Cell Mol Med 2023; 27:891-905. [PMID: 36716094 PMCID: PMC10064030 DOI: 10.1111/jcmm.17631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/11/2022] [Accepted: 11/18/2022] [Indexed: 01/31/2023] Open
Abstract
Gulf War Illness (GWI) has been reported in 25%-35% of veterans returned from the Gulf war. Symptoms of GWI are varied and include both neurological and gastrointestinal symptoms as well as chronic fatigue. Development of GWI has been associated with chemical exposure particularly with exposure to pyridostigmine bromide (PB) and permethrin. Recent studies have found that the pathology of GWI is connected to changes in the gut microbiota, that is the gut dysbiosis. In studies using animal models, the exposure to PB and permethrin resulted in similar changes in the gut microbiome as these found in GW veterans with GWI. Studies using animal models have also shown that phytochemicals like curcumin are beneficial in reducing the symptoms and that the extracellular vesicles (EV) released from gut bacteria and from the intestinal epithelium can both promote diseases and suppress diseases through the intercellular communication mechanisms. The intestinal epithelium cells produce EVs and these EVs of intestinal epithelium origin are found to suppress inflammatory bowel disease severity, suggesting the benefits of utilizing EV in treatments. On the contrary, EV from the plasma of septic mice enhanced the level of proinflammatory cytokines in vitro and neutrophils and macrophages in vivo, suggesting differences in the EV depending on the types of cells they were originated and/or influences of environmental changes. These studies suggest that targeting the EV that specifically have positive influences may become a new therapeutic strategy in the treatment of veterans with GWI.
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Affiliation(s)
- Elise Slevin
- Division of Gastroenterology and Hepatology, Department of MedicineIndiana University School of MedicineIndianapolisIndianaUSA
- Richard L. Roudebush VA Medical CenterIndianapolisIndianaUSA
| | - Sachiko Koyama
- Division of Gastroenterology and Hepatology, Department of MedicineIndiana University School of MedicineIndianapolisIndianaUSA
- Richard L. Roudebush VA Medical CenterIndianapolisIndianaUSA
| | - Kelly Harrison
- Department of Transplant SurgeryBaylor Scott & White Memorial HospitalTempleTexasUSA
| | - Ying Wan
- Department of Pathophysiology, School of Basic Medical ScienceSouthwest Medical UniversityLuzhouChina
| | - James E. Klaunig
- Laboratory of Investigative Toxicology and Pathology, Department of Environmental and Occupational Health, Indiana School of Public HealthIndiana UniversityBloomingtonIndianaUSA
| | - Chaodong Wu
- Department of NutritionTexas A&M UniversityCollege StationTexasUSA
| | - Ashok K. Shetty
- Department of Molecular and Cellular MedicineInstitute for Regenerative Medicine, Texas A&M College of MedicineCollege StationTexasUSA
| | - Fanyin Meng
- Division of Gastroenterology and Hepatology, Department of MedicineIndiana University School of MedicineIndianapolisIndianaUSA
- Richard L. Roudebush VA Medical CenterIndianapolisIndianaUSA
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9
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Bose D, Stebliankin V, Cickovski T, Saha P, Trivedi A, Roy S, More M, Tuteja A, Mathee K, Narasimhan G, Chatterjee S. Microbiome Dysbiosis Shows Strong Association of Gut-Derived Altered Metabolomic Profile in Gulf War Chronic Multisymptom Illness Symptom Persistence Following Western Diet Feeding and Development of Obesity. Int J Mol Sci 2023; 24:4245. [PMID: 36835663 PMCID: PMC9962797 DOI: 10.3390/ijms24044245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023] Open
Abstract
The pathophysiology of Gulf War Illness (GWI) remains elusive even after three decades. The persistence of multiple complex symptoms along with metabolic disorders such as obesity worsens the health of present Gulf War (GW) Veterans often by the interactions of the host gut microbiome and inflammatory mediators. In this study, we hypothesized that the administration of a Western diet might alter the host metabolomic profile, which is likely associated with the altered bacterial species. Using a five-month symptom persistence GWI model in mice and whole-genome sequencing, we characterized the species-level dysbiosis and global metabolomics, along with heterogenous co-occurrence network analysis, to study the bacteriome-metabolomic association. Microbial analysis at the species level showed a significant alteration of beneficial bacterial species. The beta diversity of the global metabolomic profile showed distinct clustering due to the Western diet, along with the alteration of metabolites associated with lipid, amino acid, nucleotide, vitamin, and xenobiotic metabolism pathways. Network analysis showed novel associations of gut bacterial species with metabolites and biochemical pathways that could be used as biomarkers or therapeutic targets to ameliorate symptom persistence in GW Veterans.
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Affiliation(s)
- Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
| | - Vitalli Stebliankin
- Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL 33199, USA
| | - Trevor Cickovski
- Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL 33199, USA
| | - Punnag Saha
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
| | - Ayushi Trivedi
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
| | - Subhajit Roy
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
| | - Madhura More
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
| | - Ashok Tuteja
- Division of Internal Medicine, University of Utah School of Medicine, Salt Lake City VAMC, Salt Lake City, UT 84132, USA
| | - Kalai Mathee
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA
| | - Giri Narasimhan
- Knight Foundation School of Computing and Information Sciences, College of Engineering and Computing, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, USA
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental and Occupational Health, Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA 92697, USA
- Department of Medicine, Infectious Disease, UCI School of Medicine, Irvine, CA 92697, USA
- VA Research and Development, VA Long Beach Health Care System, Long Beach, CA 90822, USA
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10
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Collier CA, Foncerrada S, Clevenger AJ, Shetty A, Raghavan SA. Acute Exposure to Pyridostigmine Bromide Disrupts Cholinergic Myenteric Neuroimmune Function in Mice. Adv Biol (Weinh) 2023; 7:e2200254. [PMID: 36802210 DOI: 10.1002/adbi.202200254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/30/2022] [Indexed: 02/21/2023]
Abstract
Gulf War Illness (GWI) results from chemical exposure during the Gulf War, with notable impacts on gastrointestinal motility. Due to the limited demographic impacted by this ailment, an in-depth investigation of the GWI has yielded little regarding the underlying pathophysiological mechanisms. Here, the hypothesis that exposure to pyridostigmine bromide (PB) results in severe enteric neuro-inflammation, that cascades to disruptions in colonic motility, is tested. The analyses are performed on male C57BL/6 mice that are treated with physiologically similar doses of PB given to GW veterans. When colonic motility is assessed, GWI colons have significantly reduced forces in response to acetylcholine or electrical field stimulation. GWI is also accompanied by high levels of pro-inflammatory cytokines and chemokines, associated with increased numbers of CD40+ pro-inflammatory macrophages within the myenteric plexus. Enteric neurons responsible for mediating colonic motility reside within the myenteric plexus, and PB exposure reduced their numbers. Significant smooth muscle hypertrophy is also observed due to increased inflammation. Together, the results show that PB exposure caused functional and anatomical dysfunction, promoting impaired motility within the colon. Achieving a greater understanding of the mechanisms of GWI will allow more refinement in therapeutic options that improve veterans' quality of life.
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Affiliation(s)
- Claudia A Collier
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, 3120 TAMU, College Station, TX, 77843, USA
| | - Steven Foncerrada
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, 3120 TAMU, College Station, TX, 77843, USA
| | - Abigail J Clevenger
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, 3120 TAMU, College Station, TX, 77843, USA
| | - Ashok Shetty
- Department of Cell Biology and Genetics, School of Medicine, Texas A&M University, 8447 Riverside Pkwy, Bryan, College Station, TX, 77807, USA
| | - Shreya A Raghavan
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, 3120 TAMU, College Station, TX, 77843, USA
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11
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Zhao Q, Yu J, Hao Y, Zhou H, Hu Y, Zhang C, Zheng H, Wang X, Zeng F, Hu J, Gu L, Wang Z, Zhao F, Yue C, Zhou P, Zhang H, Huang N, Wu W, Zhou Y, Li J. Akkermansia muciniphila plays critical roles in host health. Crit Rev Microbiol 2023; 49:82-100. [PMID: 35603929 DOI: 10.1080/1040841x.2022.2037506] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Akkermansia muciniphila, an intestinal microorganism, belongs to Verrucomicrobia, one of the most abundant microorganisms in the mammalian gut. It is a mucin-degrading bacterium that can colonise intestines of mammals such as humans and mice by utilising mucin as the only nitrogen and carbon source. When A. muciniphila colonises the intestine, its metabolites interact with the intestinal barrier, affecting host health by consolidating the intestinal barrier, regulating metabolic functions of the intestinal and circulatory systems, and regulating immune functions. This review summarised the mechanisms of A. muciniphila-host interactions that are relevant to host health. We focussed on characteristics of A. muciniphila in relation to its metabolites to provide a comprehensive understanding of A. muciniphila and its effects on host health and disease processes.
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Affiliation(s)
- Qixiang Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jiadong Yu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yan Hao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Hong Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yawen Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Chen Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Huaping Zheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Xiaoyan Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Fanlian Zeng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jing Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Linna Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhen Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Fulei Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Chengcheng Yue
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Pei Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Haozhou Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Nongyu Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Wenling Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yifan Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jiong Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
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12
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Sharma A, Muresanu DF, Tian ZR, Nozari A, Lafuente JV, Buzoianu AD, Sjöquist PO, Feng L, Wiklund L, Sharma HS. Co-Administration of Nanowired Monoclonal Antibodies to Inducible Nitric Oxide Synthase and Tumor Necrosis Factor Alpha Together with Antioxidant H-290/51 Reduces SiO 2 Nanoparticles-Induced Exacerbation of Pathophysiology of Spinal Cord Trauma. ADVANCES IN NEUROBIOLOGY 2023; 32:195-229. [PMID: 37480462 DOI: 10.1007/978-3-031-32997-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Military personnel are often exposed to silica dust during combat operations across the globe. Exposure to silica dust in US military or service personnel could cause Desert Strom Pneumonitis also referred to as Al Eskan disease causing several organs damage and precipitate autoimmune dysfunction. However, the effects of microfine particles of sand inhalation-induced brain damage on the pathophysiology of traumatic brain or spinal cord injury are not explored. Previously intoxication of silica nanoparticles (50-60 nm size) is shown to exacerbates spinal cord injury induces blood-spinal cord barrier breakdown, edema formation and cellular changes. However, the mechanism of silica nanoparticles-induced cord pathology is still not well known. Spinal cord injury is well known to alter serotonin (5-hydroxytryptamine) metabolism and induce oxidative stress including upregulation of nitric oxide synthase and tumor necrosis factor alpha. This suggests that these agents are involved in the pathophysiology of spinal cord injury. In this review, we examined the effects of combined nanowired delivery of monoclonal antibodies to neuronal nitric oxide synthase (nNOS) together with tumor necrosis factor alpha (TNF-α) antibodies and a potent antioxidant H-290/51 to induce neuroprotection in spinal cord injury associated with silica nanoparticles intoxication. Our results for the first time show that co-administration of nanowired delivery of antibodies to nNOS and TNF-α with H-290/51 significantly attenuated silica nanoparticles-induced exacerbation of spinal cord pathology, not reported earlier.
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Affiliation(s)
- Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Dafin F Muresanu
- Department Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania
- "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Z Ryan Tian
- Department Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Ala Nozari
- Anesthesiology & Intensive Care, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - José Vicente Lafuente
- LaNCE, Department Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Anca D Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Per-Ove Sjöquist
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lianyuan Feng
- Department of Neurology, Bethune International Peace Hospital, Zhongshan, Hebei Province, China
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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13
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Robinson Y, Khorram-Manesh A, Arvidsson N, Sinai C, Taube F. Does climate change transform military medicine and defense medical support? Front Public Health 2023; 11:1099031. [PMID: 37213601 PMCID: PMC10194660 DOI: 10.3389/fpubh.2023.1099031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 04/11/2023] [Indexed: 05/23/2023] Open
Abstract
Background Climate change has effects on multiple aspects of human life, such as access to food and water, expansion of endemic diseases as well as an increase of natural disasters and related diseases. The objective of this review is to summarize the current knowledge on climate change effects on military occupational health, military healthcare in a deployed setting, and defense medical logistics. Methods Online databases and registers were searched on August 22nd, 2022 and 348 papers retrieved, published between 2000 and 2022, from which we selected 8 publications that described climate effects on military health. Papers were clustered according to a modified theoretical framework for climate change effects on health, and relevant items from each paper were summarized. Results During the last decades a growing body of climate change related publications was identified, which report that climate change has a significant impact on human physiology, mental health, water- and vector borne infectious diseases, as well as air pollution. However, regarding the specific climate effects on military health the level of evidence is low. The effects on defense medical logistics include vulnerabilities in the cold supply chain, in medical devices functioning, in need for air conditioning, and in fresh water supply. Conclusions Climate change may transform both the theoretical framework and practical implementations in military medicine and military healthcare systems. There are significant knowledge gaps on climate change effects on the health of military personnel in operations of both combat and non-combat nature, alerting the need for prevention and mitigation of climate-related health issues. Further research within the fields of disaster and military medicine is needed to explore this novel field. As climate effects on humans and the medical supply chain may degrade military capability, significant investments in military medical research and development are needed.
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Affiliation(s)
- Yohan Robinson
- Centre for Disaster Medicine, Gothenburg University, Gothenburg, Sweden
- Joint Centre for Defence Medicine, Swedish Armed Forces, Gothenburg, Sweden
- *Correspondence: Yohan Robinson
| | | | - Niclas Arvidsson
- Centre for Disaster Medicine, Gothenburg University, Gothenburg, Sweden
- Joint Centre for Defence Medicine, Swedish Armed Forces, Gothenburg, Sweden
| | - Cave Sinai
- Centre for Disaster Medicine, Gothenburg University, Gothenburg, Sweden
- Joint Centre for Defence Medicine, Swedish Armed Forces, Gothenburg, Sweden
| | - Fabian Taube
- Centre for Disaster Medicine, Gothenburg University, Gothenburg, Sweden
- Joint Centre for Defence Medicine, Swedish Armed Forces, Gothenburg, Sweden
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14
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Bose D, Chatterjee S, Older E, Seth R, Janulewicz P, Saha P, Mondal A, Carlson JM, Decho AW, Sullivan K, Klimas N, Lasley S, Li J, Chatterjee S. Host gut resistome in Gulf War chronic multisymptom illness correlates with persistent inflammation. Commun Biol 2022; 5:552. [PMID: 35672382 PMCID: PMC9174162 DOI: 10.1038/s42003-022-03494-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 05/17/2022] [Indexed: 11/29/2022] Open
Abstract
Chronic multisymptom illness (CMI) affects a subsection of elderly and war Veterans and is associated with systemic inflammation. Here, using a mouse model of CMI and a group of Gulf War (GW) Veterans' with CMI we show the presence of an altered host resistome. Results show that antibiotic resistance genes (ARGs) are significantly altered in the CMI group in both mice and GW Veterans when compared to control. Fecal samples from GW Veterans with persistent CMI show a significant increase of resistance to a wide class of antibiotics and exhibited an array of mobile genetic elements (MGEs) distinct from normal healthy controls. The altered resistome and gene signature is correlated with mouse serum IL-6 levels. Altered resistome in mice also is correlated strongly with intestinal inflammation, decreased synaptic plasticity, reversible with fecal microbiota transplant (FMT). The results reported might help in understanding the risks to treating hospital acquired infections in this population.
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Affiliation(s)
- Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Somdatta Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Ethan Older
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA
| | - Ratanesh Seth
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Patricia Janulewicz
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Punnag Saha
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Ayan Mondal
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Jeffrey M Carlson
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Alan W Decho
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Kimberly Sullivan
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Nancy Klimas
- Department of Clinical Immunology, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Stephen Lasley
- Department of Cancer Biology and Pharmacology, University of Illinois College of Medicine, Peoria, IL, USA
| | - Jie Li
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
- Columbia VA Medical Center, Columbia, SC, USA.
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15
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Attaluri S, Arora M, Madhu LN, Kodali M, Shuai B, Melissari L, Upadhya R, Rao X, Bates A, Mitra E, Ghahfarouki KR, Ravikumar MNV, Shetty AK. Oral Nano-Curcumin in a Model of Chronic Gulf War Illness Alleviates Brain Dysfunction with Modulation of Oxidative Stress, Mitochondrial Function, Neuroinflammation, Neurogenesis, and Gene Expression. Aging Dis 2022; 13:583-613. [PMID: 35371600 PMCID: PMC8947830 DOI: 10.14336/ad.2021.0829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/29/2021] [Indexed: 12/14/2022] Open
Abstract
Unrelenting cognitive and mood impairments concomitant with incessant oxidative stress and neuroinflammation are among the significant symptoms of chronic Gulf War Illness (GWI). Curcumin (CUR), an antiinflammatory compound, has shown promise to alleviate brain dysfunction in a model of GWI following intraperitoneal administrations at a high dose. However, low bioavailability after oral treatment has hampered its clinical translation. Therefore, this study investigated the efficacy of low-dose, intermittent, oral polymer nanoparticle encapsulated CUR (nCUR) for improving brain function in a rat model of chronic GWI. Intermittent administration of 10 or 20 mg/Kg nCUR for 8 weeks in the early phase of GWI improved brain function and reduced oxidative stress (OS) and neuroinflammation. We next examined the efficacy of 12-weeks of intermittent nCUR at 10 mg/Kg in GWI animals, with treatment commencing 8 months after exposure to GWI-related chemicals and stress, mimicking treatment for the persistent cognitive and mood dysfunction displayed by veterans with GWI. GWI rats receiving nCUR exhibited better cognitive and mood function associated with improved mitochondrial function and diminished neuroinflammation in the hippocampus. Improved mitochondrial function was evident from normalized expression of OS markers, antioxidants, and mitochondrial electron transport genes, and complex proteins. Lessened neuroinflammation was noticeable from reductions in astrocyte hypertrophy, NF-kB, activated microglia with NLRP3 inflammasomes, and multiple proinflammatory cytokines. Moreover, nCUR treated animals displayed enhanced neurogenesis with a normalized expression of synaptophysin puncta, and multiple genes linked to cognitive dysfunction. Thus, low-dose, intermittent, oral nCUR therapy has promise for improving brain function in veterans with GWI.
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Affiliation(s)
- Sahithi Attaluri
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Meenakshi Arora
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas, USA
| | - Leelavathi N Madhu
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Maheedhar Kodali
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Bing Shuai
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Laila Melissari
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Raghavendra Upadhya
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Xiaolan Rao
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Adrian Bates
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Eeshika Mitra
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - Keyhan R Ghahfarouki
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
| | - M. N. V Ravikumar
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas, USA
| | - Ashok K Shetty
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, USA.
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16
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Keating D, Zundel CG, Abreu M, Krengel M, Aenlle K, Nichols MD, Toomey R, Chao LL, Golier J, Abdullah L, Quinn E, Heeren T, Groh JR, Koo BB, Killiany R, Loggia ML, Younger J, Baraniuk J, Janulewicz P, Ajama J, Quay M, Baas PW, Qiang L, Conboy L, Kokkotou E, O'Callaghan JP, Steele L, Klimas N, Sullivan K. Boston biorepository, recruitment and integrative network (BBRAIN): A resource for the Gulf War Illness scientific community. Life Sci 2021; 284:119903. [PMID: 34453948 DOI: 10.1016/j.lfs.2021.119903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 07/31/2021] [Accepted: 08/17/2021] [Indexed: 12/26/2022]
Abstract
AIMS Gulf War Illness (GWI), a chronic debilitating disorder characterized by fatigue, joint pain, cognitive, gastrointestinal, respiratory, and skin problems, is currently diagnosed by self-reported symptoms. The Boston Biorepository, Recruitment, and Integrative Network (BBRAIN) is the collaborative effort of expert Gulf War Illness (GWI) researchers who are creating objective diagnostic and pathobiological markers and recommend common data elements for GWI research. MAIN METHODS BBRAIN is recruiting 300 GWI cases and 200 GW veteran controls for the prospective study. Key data and biological samples from prior GWI studies are being merged and combined into retrospective datasets. They will be made available for data mining by the BBRAIN network and the GWI research community. Prospective questionnaire data include general health and chronic symptoms, demographics, measures of pain, fatigue, medical conditions, deployment and exposure histories. Available repository biospecimens include blood, plasma, serum, saliva, stool, urine, human induced pluripotent stem cells and cerebrospinal fluid. KEY FINDINGS To date, multiple datasets have been merged and combined from 15 participating study sites. These data and samples have been collated and an online request form for repository requests as well as recommended common data elements have been created. Data and biospecimen sample requests are reviewed by the BBRAIN steering committee members for approval as they are received. SIGNIFICANCE The BBRAIN repository network serves as a much needed resource for GWI researchers to utilize for identification and validation of objective diagnostic and pathobiological markers of the illness.
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Affiliation(s)
- D Keating
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA.
| | - C G Zundel
- Boston University School of Medicine, Behavioral Neuroscience Program, 72 East Concord St., Boston, MA 02118, USA.
| | - M Abreu
- Dr. Kiran C. Patel College of Osteopathic Medicine, Institute for Neuroimmune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; Geriatric Research Education and Clinical Center, Miami VA Medical Center, Miami, FL 33125, USA.
| | - M Krengel
- Boston University School of Medicine, Department of Neurology, 72 East Concord St., Boston, MA 02118, USA.
| | - K Aenlle
- Dr. Kiran C. Patel College of Osteopathic Medicine, Institute for Neuroimmune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; Geriatric Research Education and Clinical Center, Miami VA Medical Center, Miami, FL 33125, USA.
| | - M D Nichols
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA
| | - R Toomey
- Department of Psychological and Brain Sciences, College of Arts and Sciences, Boston University, 900 Commonwealth Ave., Boston, MA, USA.
| | - L L Chao
- San Francisco Veterans Affairs Health Care System, University of California, San Francisco, CA 94143, USA.
| | - J Golier
- James J. Peters VA Medical Center, OOMH-526, 130 West Kingsbridge Road, Bronx, NY 10468, USA; Psychiatry Department, Icahn School of Medicine at Mount Sinai, 1428 Madison Ave, New York, NY 10029, USA.
| | - L Abdullah
- Roskamp Institute, 2040 Whitfield Ave, Sarasota, FL 34243, USA; Open University, Milton Keynes, United Kingdom; James A. Haley Veterans' Hospital, Tampa, FL, USA.
| | - E Quinn
- Boston University School of Public Health, Department of Biostatistics, 715 Albany St., Boston, MA 02118, USA.
| | - T Heeren
- Boston University School of Public Health, Department of Biostatistics, 715 Albany St., Boston, MA 02118, USA.
| | - J R Groh
- Boston University School of Medicine, Behavioral Neuroscience Program, 72 East Concord St., Boston, MA 02118, USA.
| | - B B Koo
- Boston University School of Medicine, Department of Anatomy and Neurobiology, 72 East Concord St., Boston, MA 02118, USA.
| | - R Killiany
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA; Boston University School of Medicine, Department of Neurology, 72 East Concord St., Boston, MA 02118, USA; Boston University School of Medicine, Department of Anatomy and Neurobiology, 72 East Concord St., Boston, MA 02118, USA.
| | - M L Loggia
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA.
| | - J Younger
- Neuroinflammation, Pain & Fatigue Lab, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - J Baraniuk
- Department of Medicine, Georgetown University, Washington, DC, USA.
| | - P Janulewicz
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA.
| | - J Ajama
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA.
| | - M Quay
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA.
| | - P W Baas
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA.
| | - L Qiang
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA.
| | - L Conboy
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.
| | - E Kokkotou
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.
| | - J P O'Callaghan
- Health Effects Laboratory Division, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
| | - L Steele
- Baylor College of Medicine Neuropsychiatry Division, Department of Psychiatry and Behavioral Sciences, Houston, TX 77030, USA.
| | - N Klimas
- Dr. Kiran C. Patel College of Osteopathic Medicine, Institute for Neuroimmune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; Geriatric Research Education and Clinical Center, Miami VA Medical Center, Miami, FL 33125, USA.
| | - K Sullivan
- Boston University School of Public Health, Department of Environmental Health, 715 Albany St. T4W, Boston, MA 02118, USA.
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17
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Kimono DA. Gastrointestinal problems, mechanisms and possible therapeutic directions in Gulf war illness: a mini review. Mil Med Res 2021; 8:50. [PMID: 34503577 PMCID: PMC8431926 DOI: 10.1186/s40779-021-00341-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 08/19/2021] [Indexed: 11/25/2022] Open
Abstract
By its nature, Gulf war illness (GWI) is multisymptomatic and affects several organ systems in the body. Along with other symptoms, veterans who suffer from GWI commonly report chronic gastrointestinal issues such as constipation, pain, indigestion, etc. However, until recently, most attention has been focused on neurological disturbances such as cognitive impairments, chronic fatigue, and chronic pain among affected veterans. With such high prevalence of gastrointestinal problems among Gulf war (GW) veterans, it is surprising that there is little research to investigate the mechanisms behind these issues. This review summarizes all the available works on the mechanisms behind gastrointestinal problems in GWI that have been published to date in various databases. Generally, these studies, which were done in rodent models, in vitro and human cohorts propose that an altered microbiome, a reactive enteric nervous system or a leaky gut among other possible mechanisms are the major drivers of gastrointestinal problems reported in GWI. This review aims to draw attention to the gastrointestinal tract as an important player in GWI disease pathology and a potential therapeutic target.
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18
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Saha P, Skidmore PT, Holland LA, Mondal A, Bose D, Seth RK, Sullivan K, Janulewicz PA, Horner R, Klimas N, Nagarkatti M, Nagarkatti P, Lim ES, Chatterjee S. Andrographolide Attenuates Gut-Brain-Axis Associated Pathology in Gulf War Illness by Modulating Bacteriome-Virome Associated Inflammation and Microglia-Neuron Proinflammatory Crosstalk. Brain Sci 2021; 11:brainsci11070905. [PMID: 34356139 PMCID: PMC8304847 DOI: 10.3390/brainsci11070905] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022] Open
Abstract
Gulf War Illness (GWI) is a chronic multi-symptomatic illness that is associated with fatigue, pain, cognitive deficits, and gastrointestinal disturbances and presents a significant challenge to treat in clinics. Our previous studies show a role of an altered Gut–Brain axis pathology in disease development and symptom persistence in GWI. The present study utilizes a mouse model of GWI to study the role of a labdane diterpenoid andrographolide (AG) to attenuate the Gut–Brain axis-linked pathology. Results showed that AG treatment in mice (100 mg/kg) via oral gavage restored bacteriome alterations, significantly increased probiotic bacteria Akkermansia, Lachnospiraceae, and Bifidobacterium, the genera that are known to aid in preserving gut and immune health. AG also corrected an altered virome with significant decreases in virome families Siphoviridae and Myoviridae known to be associated with gastrointestinal pathology. AG treatment significantly restored tight junction proteins that correlated well with decreased intestinal proinflammatory mediators IL-1β and IL-6 release. AG treatment could restore Claudin-5 levels, crucial for maintaining the BBB integrity. Notably, AG could decrease microglial activation and increase neurotrophic factor BDNF, the key to neurogenesis. Mechanistically, microglial conditioned medium generated from IL-6 stimulation with or without AG in a concentration similar to circulating levels found in the GWI mouse model and co-incubated with neuronal cells in vitro, decreased Tau phosphorylation and neuronal apoptosis. In conclusion, we show that AG treatment mitigated the Gut–Brain-Axis associated pathology in GWI and may be considered as a potential therapeutic avenue for the much-needed bench to bedside strategies in GWI.
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Affiliation(s)
- Punnag Saha
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; (P.S.); (A.M.); (D.B.); (R.K.S.)
| | - Peter T. Skidmore
- Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Tempe, AZ 85281, USA; (P.T.S.); (L.A.H.); (E.S.L.)
| | - LaRinda A. Holland
- Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Tempe, AZ 85281, USA; (P.T.S.); (L.A.H.); (E.S.L.)
| | - Ayan Mondal
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; (P.S.); (A.M.); (D.B.); (R.K.S.)
| | - Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; (P.S.); (A.M.); (D.B.); (R.K.S.)
| | - Ratanesh K. Seth
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; (P.S.); (A.M.); (D.B.); (R.K.S.)
| | - Kimberly Sullivan
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (K.S.); (P.A.J.)
| | - Patricia A. Janulewicz
- Department of Environmental Health, Boston University School of Public Health, Boston, MA 02118, USA; (K.S.); (P.A.J.)
| | - Ronnie Horner
- College of Public Health, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Nancy Klimas
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA;
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA; (M.N.); (P.N.)
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA; (M.N.); (P.N.)
| | - Efrem S. Lim
- Center for Fundamental and Applied Microbiomics, The Biodesign Institute, Arizona State University, Tempe, AZ 85281, USA; (P.T.S.); (L.A.H.); (E.S.L.)
- School of Life Sciences, Arizona State University, Tempe, AZ 85281, USA
| | - Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; (P.S.); (A.M.); (D.B.); (R.K.S.)
- Columbia VA Medical Center, Columbia, SC 29209, USA
- Correspondence: ; Tel.: +1-803-777-8120 or +1-919-599-2278
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19
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Ribeiro ACR, Jahr FM, Hawkins E, Kronfol MM, Younis RM, McClay JL, Deshpande LS. Epigenetic histone acetylation and Bdnf dysregulation in the hippocampus of rats exposed to repeated, low-dose diisopropylfluorophosphate. Life Sci 2021; 281:119765. [PMID: 34186043 DOI: 10.1016/j.lfs.2021.119765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 06/08/2021] [Accepted: 06/21/2021] [Indexed: 10/21/2022]
Abstract
AIMS Deployment-related exposures to organophosphate (OP) compounds are implicated for Gulf War Illness (GWI) development in First GW veterans. However, reasons for the persistence of GWI are not fully understood. Epigenetic modifications to chromatin are regulatory mechanisms that can adaptively or maladaptively respond to external stimuli. These include DNA methylation and histone acetylation. DNA methylation changes have been reported in GWI but the role of histone acetylation in GWI has been less explored, despite its importance as an epigenetic mechanism for neurological disorders. MAIN METHODS Male Sprague-Dawley rats were exposed to OP diisopropyl fluorophosphate (DFP, 0.5 mg/kg s.c., 5-d) and 6-m later brains were dissected for hippocampus. Western blotting, activity assays and chromatin immunoprecipitation (ChIP) were utilized for epigenetic analyses. Behavior was assessed using the Forced Swim Test (FST) and the Elevated Plus Maze (EPM). KEY FINDINGS We observed a significant upregulation in HDAC1 protein along with a significant increase in HDAC enzyme activity in the hippocampus of DFP rats. A locus-specific ChIP study revealed decreases in H3K9ac at the brain derived neurotrophic factor (Bdnf) promoter IV coupled with a significant decrease in BDNF protein in DFP rat hippocampus. Treatment with HDAC inhibitor valproic acid reduced HDAC activity and decreased the FST immobility time in DFP rats. SIGNIFICANCE Our research suggests that epigenetic alterations to histone acetylation pathways and decreased BDNF expression could represent novel mechanisms for GWI symptomatology and may provide new targets for developing effective drugs for GWI treatment.
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Affiliation(s)
- Ana C R Ribeiro
- Department of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Fay M Jahr
- Department of Pharmacotherapy & Outcome Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Elisa Hawkins
- Department of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Mohamad M Kronfol
- Department of Pharmacotherapy & Outcome Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Rabha M Younis
- Department of Pharmacotherapy & Outcome Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Joseph L McClay
- Department of Pharmacotherapy & Outcome Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Laxmikant S Deshpande
- Department of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA; Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA.
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20
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Ribeiro ACR, Deshpande LS. A review of pre-clinical models for Gulf War Illness. Pharmacol Ther 2021; 228:107936. [PMID: 34171340 DOI: 10.1016/j.pharmthera.2021.107936] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 02/08/2023]
Abstract
Gulf War Illness (GWI) is a chronic multisymptomatic disorder that afflicts over 1/3rd of the 1991 GW veterans. It spans multiple bodily systems and presents itself as a syndrome exhibiting diverse symptoms including fatigue, depression, mood, and memory and concentration deficits, musculoskeletal pain and gastrointestinal distress in GW veterans. The etiology of GWI is complex and many factors, including chemical, physiological, and environmental stressors present in the GW arena, have been implicated for its development. It has been over 30 years since the end of the GW but, GWI has been persistent in suffering veterans who are also dealing with paucity of effective treatments. The multifactorial aspect of GWI along with genetic heterogeneity and lack of available data surrounding war-time exposures have proved to be challenging in developing pre-clinical models of GWI. Despite this, over a dozen GWI animal models exist in the literature. In this article, following a brief discussion of GW history, GWI definitions, and probable causes for its pathogenesis, we will expand upon various experimental models used in GWI laboratory research. These animal models will be discussed in the context of their attempts at mimicking GW-related exposures with regards to the variations in chemical combinations, doses, and frequency of exposures. We will discuss their advantages and limitations in modeling GWI followed by a discussion of behavioral and molecular findings in these models. The mechanistic data obtained from these preclinical studies have offered multiple molecular pathways including chronic inflammation, mitochondrial dysfunction, oxidative stress, lipid disturbances, calcium homeostatic alterations, changes in gut microbiota, and epigenetic modifications, amongst others for explaining GWI development and its persistence. Finally, these findings have also informed us on novel druggable targets in GWI. While, it has been difficult to conceive a single pre-clinical model that could express all the GWI signs and exhibit biological complexity reflective of the clinical presentation in GWI, animal models have been critical for identifying molecular underpinnings of GWI and evaluating treatment strategies for GWI.
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Affiliation(s)
- Ana C R Ribeiro
- Departments of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Laxmikant S Deshpande
- Departments of Neurology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA; Departments of Pharmacology and Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA.
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21
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Chatterjee S, Bose D, Seth R. Host gut microbiome and potential therapeutics in Gulf War Illness: A short review. Life Sci 2021; 280:119717. [PMID: 34139232 DOI: 10.1016/j.lfs.2021.119717] [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: 01/08/2021] [Revised: 05/22/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023]
Abstract
AIMS Since our troops had returned from the first Persian Gulf War in 1990-91, the veterans have reported chronic multisymptomatic illness widely referred to as Gulf War Illness (GWI). We aim to review the current directions of GWI pathology research in the context of chronic multisymptomatic illness and its possible gut microbiome targeted therapies. The veterans of Gulf War show symptoms of chronic fatigue, cognitive deficits, and a subsection report of gastrointestinal complications. METHOD Efforts of finding a suitable treatment regimen and clinical management remain a challenge. More recently, we have shown that the pathology is connected to alterations in the gut microbiome, and efforts of finding a suitable regimen for gut-directed therapeutics are underway. We discuss the various clinical interventions and summarize the possible effectiveness of gut-directed therapies such as the use of short-chain fatty acids (SCFA), phenolic compounds, and their metabolites, use of probiotics, and fecal microbiota transfer. SIGNIFICANCE The short review will be helpful to GWI researchers to expand their studies to the gut and find an effective treatment strategy for chronic multisymptomatic illness.
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Affiliation(s)
- Saurabh Chatterjee
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; Columbia VA Medical Center, Columbia, SC 29205, USA.
| | - Dipro Bose
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; Columbia VA Medical Center, Columbia, SC 29205, USA
| | - Ratanesh Seth
- Environmental Health and Disease Laboratory, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA; Columbia VA Medical Center, Columbia, SC 29205, USA
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22
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Brown KA, Carpenter JM, Preston CJ, Ludwig HD, Clay KB, Harn DA, Norberg T, Wagner JJ, Filipov NM. Lacto-N-fucopentaose-III ameliorates acute and persisting hippocampal synaptic plasticity and transmission deficits in a Gulf War Illness mouse model. Life Sci 2021; 279:119707. [PMID: 34102195 DOI: 10.1016/j.lfs.2021.119707] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/19/2021] [Accepted: 06/01/2021] [Indexed: 12/12/2022]
Abstract
AIMS The present study investigated if treatment with the immunotherapeutic, lacto-N-fucopentaose-III (LNFPIII), resulted in amelioration of acute and persisting deficits in synaptic plasticity and transmission as well as trophic factor expression along the hippocampal dorsoventral axis in a mouse model of Gulf War Illness (GWI). MAIN METHODS Mice received either coadministered or delayed LNFPIII treatment throughout or following, respectively, exposure to a 15-day GWI induction paradigm. Subsets of animals were subsequently sacrificed 48 h, seven months, or 11 months post GWI-related (GWIR) exposure for hippocampal qPCR or in vitro electrophysiology experiments. KEY FINDINGS Progressively worsened impairments in hippocampal synaptic plasticity, as well as a biphasic effect on hippocampal synaptic transmission, were detected in GWIR-exposed animals. Dorsoventral-specific impairments in hippocampal synaptic responses became more pronounced over time, particularly in the dorsal hippocampus. Notably, delayed LNFPIII treatment ameliorated GWI-related aberrations in hippocampal synaptic plasticity and transmission seven and 11 months post-exposure, an effect that was consistent with enhanced hippocampal trophic factor expression and absence of increased interleukin 6 (IL-6) in animals treated with LNFPIII. SIGNIFICANCE Approximately a third of Gulf War Veterans have GWI; however, GWI therapeutics are presently limited to targeted and symptomatic treatments. As increasing evidence underscores the substantial role of persisting neuroimmune dysfunction in GWI, efficacious neuroactive immunotherapeutics hold substantial promise in yielding GWI remission. The findings in the present report indicate that LNFPIII may be an efficacious candidate for ameliorating persisting neurological abnormalities presented in GWI.
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Affiliation(s)
- Kyle A Brown
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States
| | - Jessica M Carpenter
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Neuroscience Program, University of Georgia, Athens, GA, United States
| | - Collin J Preston
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States
| | - Helaina D Ludwig
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States
| | - Kendall B Clay
- Neuroscience Program, University of Georgia, Athens, GA, United States
| | - Donald A Harn
- Department of Infectious Diseases, University of Georgia, Athens, GA, United States; Center for Tropical and Emerging Diseases, University of Georgia, Athens, GA, United States
| | - Thomas Norberg
- Department of Chemistry, University of Uppsala, Uppsala, Sweden
| | - John J Wagner
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States; Neuroscience Program, University of Georgia, Athens, GA, United States.
| | - Nikolay M Filipov
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States; Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, United States; Neuroscience Program, University of Georgia, Athens, GA, United States.
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23
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Angoa-Pérez M, Zagorac B, Francescutti DM, Theis KR, Kuhn DM. Effects of gut microbiota remodeling on the dysbiosis induced by high fat diet in a mouse model of Gulf war illness. Life Sci 2021; 279:119675. [PMID: 34081987 DOI: 10.1016/j.lfs.2021.119675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/14/2021] [Accepted: 05/22/2021] [Indexed: 01/04/2023]
Abstract
Gulf war illness (GWI) is a chronic disorder of unknown etiology characterized by multiple symptoms such as pain, fatigue, gastrointestinal disturbances and neurocognitive problems. Increasing evidence suggests that gut microbiome perturbations play a key role in the pathology of this disorder. GWI courses with gut microbiota alterations and their metabolites (e.g. short chain fatty acids -SCFA-), which can be aggravated by lifestyle risk factors such as a high fat diet (HF). To investigate the causative role of the gut microbiome, non-absorbable antibiotics (Abx) were administered to mice treated with GWI agents and concomitantly fed with a HF. In light of the wide use of Abx as pseudo-germ-free models, we evaluated the effects of Abx exposure on GWI and HF on body weight, food intake, gut microbiota changes and levels of the SCFA acetate. Results show that HF decreased food intake while increasing body weight in both controls and GWI. Exposure to Abx prevented these HF effects by offsetting the body weight gain in GWI. GWI and HF led to decreases in α-diversity, disruptions in the composition and structure of the gut bacterial community and decreases in acetate levels. This Abx-induced remodeling of the gut microbiome was characterized by an expansion of Proteobacteria, decreases in Bacteroidetes and Firmicutes, and overall increases in acetate levels, as well as by the proliferation of potential pathobionts. Therefore, the use of Abx may not represent a dependable approach to deplete the gut microbiome and its advantages as a pseudo germ-free model warrant further investigation.
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Affiliation(s)
- Mariana Angoa-Pérez
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, USA; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA.
| | - Branislava Zagorac
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, USA; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Dina M Francescutti
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, USA; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Kevin R Theis
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, USA; Perinatal Research Initiative in Maternal, Perinatal and Child Health, Wayne State University School of Medicine, Detroit, MI, USA
| | - Donald M Kuhn
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, USA; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
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24
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Lacto-N-fucopentaose-III (LNFPIII) ameliorates acute aberrations in hippocampal synaptic transmission in a Gulf War Illness animal model. Brain Res 2021; 1766:147513. [PMID: 33961896 DOI: 10.1016/j.brainres.2021.147513] [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: 01/20/2021] [Revised: 04/30/2021] [Accepted: 04/30/2021] [Indexed: 02/04/2023]
Abstract
Approximately one-third of Persian Gulf War veterans are afflicted by Gulf War Illness (GWI), a chronic multisymptom condition that fundamentally presents with cognitive deficits (i.e., learning and memory impairments) and neuroimmune dysfunction (i.e., inflammation). Factors associated with GWI include overexposures to neurotoxic pesticides and nerve agent prophylactics such as permethrin (PM) and pyridostigmine bromide (PB), respectively. GWI-related neurological impairments associated with PB-PM overexposures have been recapitulated in animal models; however, there is a paucity of studies assessing PB-PM-related aberrations in hippocampal synaptic plasticity and transmission that may underlie behavioral impairments. Importantly, FDA-approved neuroactive treatments are currently unavailable for GWI. In the present study, we assessed the efficacy of an immunomodulatory therapeutic, lacto-N-fucopentaose-III (LNFPIII), on ameliorating acute effects of in vivo PB-PM exposure on synaptic plasticity and transmission as well as trophic factor/cytokine expression along the hippocampal dorsoventral axis. PB-PM exposure resulted in hippocampal synaptic transmission deficits 48 h post-exposure, a response that was ameliorated by LNFPIII coadministration, particularly in the dorsal hippocampus (dH). LNFPIII coadministration also enhanced synaptic transmission in the dH and the ventral hippocampus (vH). Notably, LNFPIII coadministration elevated long-term potentiation in the dH. Further, PB-PM exposure and LNFPIII coadministration uniquely altered key inflammatory cytokine and trophic factor production in the dH and the vH. Collectively, these findings demonstrate that PB-PM exposure impaired hippocampal synaptic responses 48 h post-exposure, impairments that differentially manifested along the dorsoventral axis. Importantly, LNFPIII ameliorated GWI-related electrophysiological deficits, a beneficial effect indicating the potential efficacy of LNFPIII for treating GWI.
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Madhu LN, Kodali M, Attaluri S, Shuai B, Melissari L, Rao X, Shetty AK. Melatonin improves brain function in a model of chronic Gulf War Illness with modulation of oxidative stress, NLRP3 inflammasomes, and BDNF-ERK-CREB pathway in the hippocampus. Redox Biol 2021; 43:101973. [PMID: 33933884 PMCID: PMC8105671 DOI: 10.1016/j.redox.2021.101973] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/05/2021] [Accepted: 04/09/2021] [Indexed: 02/07/2023] Open
Abstract
Persistent cognitive and mood dysfunction is the primary CNS symptom in veterans afflicted with Gulf War Illness (GWI). This study investigated the efficacy of melatonin (MEL) for improving cognitive and mood function with antioxidant, antiinflammatory, and pro-cognitive effects in a rat model of chronic GWI. Six months after exposure to GWI-related chemicals and stress, rats were treated with vehicle or MEL (5, 10, 20, 40, and 80 mg/kg) for eight weeks. Behavioral tests revealed cognitive and mood dysfunction in GWI rats receiving vehicle, which were associated with elevated oxidative stress, reduced NRF2, catalase and mitochondrial complex proteins, astrocyte hypertrophy, activated microglia with NLRP3 inflammasomes, elevated proinflammatory cytokines, waned neurogenesis, and synapse loss in the hippocampus. MEL at 10 mg/kg alleviated simple and associative recognition memory dysfunction and anhedonia, along with reduced oxidative stress, enhanced glutathione and complex III, and reduced NLRP3 inflammasomes, IL-18, TNF-α, and IFN-γ. MEL at 20 mg/kg also normalized NRF2 and catalase and increased microglial ramification. MEL at 40 mg/kg, in addition, reduced astrocyte hypertrophy, activated microglia, NF-kB-NLRP3-caspase-1 signaling, IL-1β, MCP-1, and MIP-1α. Moreover, MEL at 80 mg/kg activated the BDNF-ERK-CREB signaling pathway, enhanced neurogenesis and diminished synapse loss in the hippocampus, and improved a more complex hippocampus-dependent cognitive function. Thus, MEL therapy is efficacious for improving cognitive and mood function in a rat model of chronic GWI, and MEL's effect was dose-dependent. The study provides the first evidence of MEL's promise for alleviating neuroinflammation and cognitive and mood impairments in veterans with chronic GWI. A low dose of Melatonin alleviated recognition memory dysfunction and anhedonia in a model of chronic GWI. A moderate dose of Melatonin improved more complex cognitive function in a model of chronic GWI. Melatonin treatment reduced oxidative stress and enhanced mitochondrial complex proteins in the GWI brain. Melatonin inhibited NLRP3 inflammasomes and proinflammatory cytokines in the GWI brain. Melatonin activated the BDNF-ERK-CREB signaling pathway and enhanced neurogenesis in the GWI brain.
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Affiliation(s)
- Leelavathi N Madhu
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Maheedhar Kodali
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Sahithi Attaluri
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Bing Shuai
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Laila Melissari
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Xiaolan Rao
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA
| | - Ashok K Shetty
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, TX, USA.
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Qi M, Tan B, Wang J, Liao S, Deng Y, Ji P, Song T, Zha A, Yin Y. The microbiota-gut-brain axis: A novel nutritional therapeutic target for growth retardation. Crit Rev Food Sci Nutr 2021; 62:4867-4892. [PMID: 33523720 DOI: 10.1080/10408398.2021.1879004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Growth retardation (GR), which commonly occurs in childhood, is a major health concern globally. However, the specific mechanism remains unclear. It has been increasingly recognized that changes in the gut microbiota may lead to GR through affecting the microbiota-gut-brain axis. Microbiota interacts with multiple factors such as birth to affect the growth of individuals. Microbiota communicates with the nerve system through chemical signaling (direct entry into the circulation system or stimulation of enteroendocrine cells) and nervous signaling (interaction with enteric nerve system and vagus nerve), which modulates appetite and immune response. Besides, they may also influence the function of enteric glial cells or lymphocytes and levels of systemic inflammatory cytokines. Environmental stress may cause leaky gut through perturbing the hypothalamic-pituitary-adrenal axis to further result in GR. Nutritional therapies involving probiotics and pre-/postbiotics are being investigated for helping the patients to overcome GR. In this review, we summarize the role of microbiota in GR with human and animal models. Then, existing and potential regulatory mechanisms are reviewed, especially the effect of microbiota-gut-brain axis. Finally, we propose nutritional therapeutic strategies for GR by the intervention of microbiota-gut-brain axis, which may provide novel perspectives for the treatment of GR in humans and animals.
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Affiliation(s)
- Ming Qi
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Bie Tan
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jing Wang
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Simeng Liao
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yuankun Deng
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Peng Ji
- Department of Nutrition, University of California, Davis, California, USA
| | - Tongxing Song
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Andong Zha
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
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Dickey B, Madhu LN, Shetty AK. Gulf War Illness: Mechanisms Underlying Brain Dysfunction and Promising Therapeutic Strategies. Pharmacol Ther 2020; 220:107716. [PMID: 33164782 DOI: 10.1016/j.pharmthera.2020.107716] [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: 08/26/2020] [Accepted: 10/19/2020] [Indexed: 12/13/2022]
Abstract
Gulf War Illness (GWI), a chronic multisymptom health problem, afflicts ~30% of veterans served in the first GW. Impaired brain function is among the most significant symptoms of GWI, which is typified by persistent cognitive and mood impairments, concentration problems, headaches, chronic fatigue, and musculoskeletal pain. This review aims to discuss findings from animal prototypes and veterans with GWI on mechanisms underlying its pathophysiology and emerging therapeutic strategies for alleviating brain dysfunction in GWI. Animal model studies have linked brain impairments to incessantly elevated oxidative stress, chronic inflammation, inhibitory interneuron loss, altered lipid metabolism and peroxisomes, mitochondrial dysfunction, modified expression of genes relevant to cognitive function, and waned hippocampal neurogenesis. Furthermore, the involvement of systemic alterations such as the increased intensity of reactive oxygen species and proinflammatory cytokines in the blood, transformed gut microbiome, and activation of the adaptive immune response have received consideration. Investigations in veterans have suggested that brain dysfunction in GWI is linked to chronic activation of the executive control network, impaired functional connectivity, altered blood flow, persistent inflammation, and changes in miRNA levels. Lack of protective alleles from Class II HLA genes, the altered concentration of phospholipid species and proinflammatory factors in the circulating blood have also been suggested as other aiding factors. While some drugs or combination therapies have shown promise for alleviating symptoms in clinical trials, larger double-blind, placebo-controlled trials are needed to validate such findings. Based on improvements seen in animal models of GWI, several antioxidants and anti-inflammatory compounds are currently being tested in clinical trials. However, reliable blood biomarkers that facilitate an appropriate screening of veterans for brain pathology need to be discovered. A liquid biopsy approach involving analysis of brain-derived extracellular vesicles in the blood appears efficient for discerning the extent of neuropathology both before and during clinical trials.
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Affiliation(s)
- Brandon Dickey
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center College of Medicine, College Station, TX, USA; Texas A&M University Health Science Center College of Medicine, Temple, TX, USA
| | - Leelavathi N Madhu
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center College of Medicine, College Station, TX, USA
| | - Ashok K Shetty
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center College of Medicine, College Station, TX, USA.
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Obesity Worsens Gulf War Illness Symptom Persistence Pathology by Linking Altered Gut Microbiome Species to Long-Term Gastrointestinal, Hepatic, and Neuronal Inflammation in a Mouse Model. Nutrients 2020; 12:nu12092764. [PMID: 32927823 PMCID: PMC7551189 DOI: 10.3390/nu12092764] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/30/2020] [Accepted: 09/08/2020] [Indexed: 12/18/2022] Open
Abstract
Persistence of Gulf War illness (GWI) pathology among deployed veterans is a clinical challenge even after almost three decades. Recent studies show a higher prevalence of obesity and metabolic disturbances among Gulf War veterans primarily due to the existence of post-traumatic stress disorder (PTSD), chronic fatigue, sedentary lifestyle, and consumption of a high-carbohydrate/high-fat diet. We test the hypothesis that obesity from a Western-style diet alters host gut microbial species and worsens gastrointestinal and neuroinflammatory symptom persistence. We used a 5 month Western diet feeding in mice that received prior Gulf War (GW) chemical exposure to mimic the home phase obese phenotype of the deployed GW veterans. The host microbial profile in the Western diet-fed GWI mice showed a significant decrease in butyrogenic and immune health-restoring bacteria. The altered microbiome was associated with increased levels of IL6 in the serum, Claudin-2, IL6, and IL1β in the distal intestine with concurrent inflammatory lesions in the liver and hyperinsulinemia. Microbial dysbiosis was also associated with frontal cortex levels of increased IL6 and IL1β, activated microglia, decreased levels of brain derived neurotrophic factor (BDNF), and higher accumulation of phosphorylated Tau, an indicator of neuroinflammation-led increased risk of cognitive deficiencies. Mechanistically, serum from Western diet-fed mice with GWI significantly increased microglial activation in transformed microglial cells, increased tyrosyl radicals, and secreted IL6. Collectively, the results suggest that an existing obese phenotype in GWI worsens persistent gastrointestinal and neuronal inflammation, which may contribute to poor outcomes in restoring cognitive function and resolving fatigue, leading to the deterioration of quality of life.
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