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Ma J, Xie H, Yuan C, Shen J, Chen J, Chen Q, Liu J, Tong Q, Sun J. The gut microbial signatures of patients with lacunar cerebral infarction. Nutr Neurosci 2024; 27:620-636. [PMID: 37538045 DOI: 10.1080/1028415x.2023.2242121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
BACKGROUND Emerging evidence revealed that gut microbial dysbiosis is involved in the pathogenesis of multiple neurological diseases, but there is little available data on the relationship between gut microbiota and lacunar cerebral infarction (LCI). METHODS Fecal samples from acute LCI patients (n = 65) and matched healthy controls (n = 65) were collected. The compositions and potential functions of the gut microbiota were estimated. RESULTS The results showed that there were significant gut microbial differences between LCI and control groups. Patients with LCI had higher abundances of genus Lactobacillus, Streptococcus, Veillonella, Acidaminococcus, Bacillus, Peptoclostridium, Intestinibacter, Alloscardovia and Cloacibacillus but lower proportions of genus Agathobacter and Lachnospiraceae_UCG-004. Investigating further these microbes such as Lactobacillus and Veillonella were correlated with clinical signs. Moreover, we found that 9 gene functions of gut microbiota were different between LCI patients and controls, which were associated with amino acid metabolism and inflammatory signal transduction. Notably, four optimal microbial markers were determined, and the combination of Streptococcus, Lactobacillus, Agathobacter, Lachnospiraceae_UCG-004 and the three risk factors achieved an area under the curve (AUC) value of 0.854 to distinguish LCI from controls. CONCLUSION These findings revealed the characterizing of gut microbiota in LCI patients and provided potential microbial biomarkers for clinical diagnosis of LCI.
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Affiliation(s)
- Jiaying Ma
- Department of Geriatrics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Huijia Xie
- Department of Geriatrics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Chengxiang Yuan
- Department of Neurology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Jie Shen
- Department of Neurology, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Jiaxin Chen
- Department of Geriatrics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Qionglei Chen
- Department of Geriatrics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Jiaming Liu
- Department of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Qiuling Tong
- Department of Neurology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Jing Sun
- Department of Geriatrics, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
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Huang Y, Li Y, Guan D, Pan Y, Yang C, Liu H, Chen C, Chen W, Liu J, Wan T, Zhuang L, Wang Q, Zhang Y. Acorus tatarinowii oils exert protective effects on microglia-mediated inflammatory injury via restoring gut microbiota composition in experimental stroke rats. Brain Res Bull 2024; 213:110990. [PMID: 38821245 DOI: 10.1016/j.brainresbull.2024.110990] [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: 02/06/2024] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
Growing evidence has demonstrated that gut microbiota could be developed as a therapeutic target due to its contribution to microglia activation in the pathological process of ischemic stroke. Acorus tatarinowii oils (AT oils), which is considered as the active fraction of a traditional Chinese herbal medicine Acorus tatarinowii, exerts various bioactivities and prebiotic effects. However, it remains unclear that the effect of AT oils on inflammatory response after ischemic stroke and whether its underlying mechanism is associated to gut microbiota and the intestinal barrier. In the current study, we aim to investigate the anti-microglial neuroinflammation mechanism of AT oils in a middle cerebral artery occlusion model of ischemic stroke. The compositions of AT oils were identified by GC-MS. Our results demonstrated that AT oils could effectively relieve cerebral infarction, inhibit neuronal apoptosis, degrade the release of pro-inflammatory factors (TNF-α, IL-17, IL-6 and IFN-γ), and mediate the polarization of microglia. Moreover, AT oils restored the composition and the balance of gut microbiota in stroke rats, and reduced abundance of opportunistic genera including Verrucomicrobia, Akkermansia and Tenericutes, as well as increased beneficial bacteria abundance such as Tenericutes and Prevotella_copri. To investigate the role of gut microbiota on AT oils against ischemic stroke, we conducted the fecal microbiota transplantation (FMT) experiments with gut microbiota consumption, which suggested that the depletion of gut microbiota took away the protective effect of AT oils, confirming the importance of gut microbiota in the protective effect of AT oils on ischemic stroke. FMT experiments have demonstrated that AT oils preserved the gut permeability and blood-brain barrier, as well as mediated the microglial phenotype under the intervention of gut microbiota. In summary, AT oils could efficaciously moderate neuronal damage and intervene microglial phenotype by reversing gut microbiota disorder in ischemic stroke rats.
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Affiliation(s)
- Yueyue Huang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi 530022, China
| | - Yongyi Li
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Danni Guan
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Yaru Pan
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Chao Yang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Huina Liu
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Chaoyan Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Weitao Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Jinman Liu
- Affiliated Jiangmen TCM Hospital, Ji'nan University, Jiangmen, Guangdong 529000, China
| | - Ting Wan
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Lixing Zhuang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Qi Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China.
| | - Yifan Zhang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, Guangdong 510405, China.
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Zhang J, Ling L, Xiang L, Li W, Bao P, Yue W. Role of the gut microbiota in complications after ischemic stroke. Front Cell Infect Microbiol 2024; 14:1334581. [PMID: 38644963 PMCID: PMC11026644 DOI: 10.3389/fcimb.2024.1334581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Ischemic stroke (IS) is a serious central nervous system disease. Post-IS complications, such as post-stroke cognitive impairment (PSCI), post-stroke depression (PSD), hemorrhagic transformation (HT), gastrointestinal dysfunction, cardiovascular events, and post-stroke infection (PSI), result in neurological deficits. The microbiota-gut-brain axis (MGBA) facilitates bidirectional signal transduction and communication between the intestines and the brain. Recent studies have reported alterations in gut microbiota diversity post-IS, suggesting the involvement of gut microbiota in post-IS complications through various mechanisms such as bacterial translocation, immune regulation, and production of gut bacterial metabolites, thereby affecting disease prognosis. In this review, to provide insights into the prevention and treatment of post-IS complications and improvement of the long-term prognosis of IS, we summarize the interaction between the gut microbiota and IS, along with the effects of the gut microbiota on post-IS complications.
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Affiliation(s)
- Jinwei Zhang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Ling Ling
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
| | - Lei Xiang
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
| | - Wenxia Li
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Pengnan Bao
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Wei Yue
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
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Shen JD, Yuan B, Zhang A, Zhou XM, Chen SJ, Deng JL, Zhang X, Jiang HY, Yu Q, Wu Q. Fecal calprotectin is a novel biomarker to predict the clinical outcomes of patients with ruptured intracranial aneurysm. J Stroke Cerebrovasc Dis 2024; 33:107634. [PMID: 38342274 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/25/2024] [Accepted: 02/09/2024] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Intracranial aneurysm (IA) is a common cerebrovascular disease and the leading cause of spontaneous subarachnoid hemorrhage. Recent evidence suggests that gut microbiota is involved in the pathophysiological process of IA through the gut-brain axis. However, the role of gut inflammation in the development of IA has yet to be clarified. Our study aimed to investigate whether fecal calprotectin (FC) level, a sensitive marker of gut inflammation, is correlated with the development of IA and the prognosis of patients with ruptured IA (RIA). METHODS 182 patients were collected from January 2022 to January 2023, including 151 patients with IA and 31 healthy individuals. 151 IA patients included 109 patients with unruptured IA (UIA) and 42 patients with RIA. The FC level was measured by enzyme-linked immunosorbent assay. Other detailed information was obtained from an electronic medical record system. RESULTS Compared with healthy controls, the FC levels in patients with IA were increased (P < 0.0001). Patients with RIA had significantly higher FC levels than UIA patients (P < 0.0001). Moreover, the FC level in RIA patients with unfavorable outcomes was higher than in RIA patients with favorable outcomes. Logistic regression analysis showed that the elevated FC level was an independent risk factor for a 3-month poor prognosis in patients with RIA (OR=1.005, 95% CI = 1.000 -1.009, P = 0.044). CONCLUSION Fecal calprotectin level is significantly elevated in IA patients, especially those with RIA. FC is a novel biomarker of 3-month poor outcomes in RIA patients.
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Affiliation(s)
- Jun-Da Shen
- Department of Neurosurgery, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Bin Yuan
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - An Zhang
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - Xiao-Ming Zhou
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - Shu-Juan Chen
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - Jin-Long Deng
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - Xin Zhang
- Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China
| | - Hai-Yang Jiang
- Department of Surgery, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, China
| | - Qing Yu
- Department of Clinical Laboratory, Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong Road, Nanjing 210002, China.
| | - Qi Wu
- Department of Neurosurgery, Jinling Hospital, Nanjing Medical University, Nanjing, China; Department of Neurosurgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing 210002, China.
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Sproten R, Nohr D, Guseva D. Nutritional strategies modulating the gut microbiome as a preventative and therapeutic approach in normal and pathological age-related cognitive decline: a systematic review of preclinical and clinical findings. Nutr Neurosci 2024:1-16. [PMID: 38165747 DOI: 10.1080/1028415x.2023.2296727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
CONTEXT The proportion of the elderly population is on the rise across the globe, and with it the prevalence of age-related neurodegenerative diseases. The gut microbiota, whose composition is highly regulated by dietary intake, has emerged as an exciting research field in neurology due to its pivotal role in modulating brain functions via the gut-brain axis. OBJECTIVES We aimed at conducting a systematic review of preclinical and clinical studies investigating the effects of dietary interventions on cognitive ageing in conjunction with changes in gut microbiota composition and functionality. METHODS PubMed and Scopus were searched using terms related to ageing, cognition, gut microbiota and dietary interventions. Studies were screened, selected based on previously determined inclusion and exclusion criteria, and evaluated for methodological quality using recommended risk of bias assessment tools. RESULTS A total of 32 studies (18 preclinical and 14 clinical) were selected for inclusion. We found that most of the animal studies showed significant positive intervention effects on cognitive behavior, while outcomes on cognition, microbiome features, and health parameters in humans were less pronounced. The effectiveness of dietary interventions depended markedly on the age, gender, degree of cognitive decline and baseline microbiome composition of participants. CONCLUSION To harness the full potential of microbiome-inspired nutrition for cognitive health, one of the main challenges remains to better understand the interplay between host, his microbiome, dietary exposures, whilst also taking into account environmental influences. Future research should aim toward making use of host-specific microbiome data to guide the development of personalized therapies.
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Affiliation(s)
- Rieke Sproten
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | - Donatus Nohr
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | - Daria Guseva
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
- Institute of Child Nutrition, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Karlsruhe, Germany
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Turner MJ, Dietz RM. Potential Adjuncts to Therapeutic Hypothermia to Mitigate Multiorgan Injury in Perinatal Hypoxia-Ischemia. Neoreviews 2023; 24:e771-e782. [PMID: 38036441 DOI: 10.1542/neo.24-12-e771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Over the last 2 decades, therapeutic hypothermia has become the standard of care to reduce morbidity and mortality in neonates affected by moderate-to-severe hypoxic-ischemic encephalopathy (HIE). There is a significant interest in improving the neurologic outcomes of neonatal HIE, ranging from adjunctive therapy to therapeutic hypothermia. Importantly, the pathophysiologic mechanisms underlying HIE also affect multiple other organs, contributing to high morbidity and mortality in this patient population. This review focuses on the adjunct therapies currently under investigation to mitigate the impact of hypoxic-ischemic injury on the brain, kidneys, liver, heart, and gastrointestinal system.
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Affiliation(s)
- Megan J Turner
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
- Department of Pediatrics, Denver Health Medical Center, Denver, CO
| | - Robert M Dietz
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
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Müge Karakayalı E, Kocamaz E, Alpay Ş, Önal T, Öztatlici M, Duruşma R, Ozel HF, Mete M, Barutcuoglu M, Kutlu N, Tuğlu Mİ. Histological and electroencephalographic demonstration of probiotic effect for reduce of oxidative stress and apoptosis in experimental traumatic brain injury. ULUS TRAVMA ACIL CER 2023; 29:1203-1211. [PMID: 37889022 PMCID: PMC10771235 DOI: 10.14744/tjtes.2023.80743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/26/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND The gut microbiota modulates nervous system function. In the literature, it has been shown that this modula-tion is used in many nervous system injuries through oxidative stress (OS) and apoptosis mechanisms. In this study, it was aimed to investigate the neuroprotective effects of probiotic (PB) treatment in a rat traumatic brain injury (TBI) model with histological and electroencephalographic (EEG) data. METHODS Forty male Wistar albino rats were divided into four groups. Group 1 was the control group (CONTROL, n=10) and no trauma was applied. Group 2 was the trauma group with the weight-drop technique (TBH, n=10). Group 3 was the sham group (SHAM), (TBH+sterile saline [SS], n=10) rats were given 500 µL of SS per day by oral gavage. Group 4 was the PB treatment group, (TBH+PB, n=10) rats were treated daily for 7 days with 500 µL of PB oral gavage. Brain samples were collected 7 days after trauma. Histopathological evaluation of brain samples was done with HE. OS with Endothelial nitric oxide synthase, vascularization with Vas-cular Endothelial Growth Factor, gliosis with S100, and apoptosis with caspase 3 were evaluated immunohistochemically. Apoptotic index was determined with TUNEL. In addition, EEG and somatosensory evoked potential (SEP) recording findings were compared. RESULTS It was determined by HE staining that there was a significant (P<0.001) damage in the TBI and sham groups compared to the control group. It was found that PB treatment provided a significant (P<0.01) improvement in the damage created. While OS (P<0.01), gliosis (P<0.01), and apoptosis (P<0.05) decreased with PB treatment, angiogenesis (P<0.01) increased. In support of these findings, in the software-mediated EEG and SUP examination; Delta wave power and theta/alpha ratio increased with TBI and de-creased with PB treatment. CONCLUSION The results showed that PB treatment provided a significant improvement in rats by reducing OS, apoptosis, and gliosis and increasing vascularity. To the best of our knowledge in the literature, it was shown for the 1st time that histological results for the treatment of PB were supported by software-mediated EEG and SEP analysis.
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Affiliation(s)
- Emine Müge Karakayalı
- Department of Medical Microbiology, Izmir Democracy University Faculty of Medicine, İzmir-Türkiye
| | - Erdoğan Kocamaz
- Department of Histology and Embryology, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Şüheda Alpay
- Department of Physiology Department, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Tuna Önal
- Department of Histology and Embryology, Bandırma Onyedi Eylül,University Faculty of Medicine, Bandırma-Türkiye
| | - Mustafa Öztatlici
- Department of Histology and Embryology, Gaziantep Islam Bilim ve Teknoloji University Faculty of Medicine, Gaziantep-Türkiye
| | - Rabia Duruşma
- Department of Histology and Embryology, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Hasan Fehmi Ozel
- Department of Health Sciences, Celal Bayar University School of Vocation, Manisa-Türkiye
| | - Mesut Mete
- Department of Neurosurgery, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Mustafa Barutcuoglu
- Department of Neurosurgery, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Necip Kutlu
- Department of Physiology Department, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
| | - Mehmet İbrahim Tuğlu
- Department of Histology and Embryology, Manisa Celal Bayar University Faculty of Medicine, Manisa-Türkiye
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Zhang Z, Cheng N, Liang J, Deng Y, Xiang P, Hei Z, Li X. Gut microbiota changes in animal models of spinal cord injury: a preclinical systematic review and meta-analysis. Ann Med 2023; 55:2269379. [PMID: 37851840 PMCID: PMC10586076 DOI: 10.1080/07853890.2023.2269379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/06/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND An increasing number of studies show that the intestinal flora is closely related to spinal cord injury. Many researchers are exploring the changes in the richness, diversity, and evenness of intestinal flora in spinal cord injury animal models to identify the characteristic bacteria. METHODS A comprehensive literature search was conducted using three databases: PubMed, Embase, and Web of Science. A meta-analysis was performed using R 4.3.1 to evaluate the comparison of microbiota diversity, richness, and evenness and the relative abundance of intestinal microbiota in animals with spinal cord injury and blank controls. RESULTS Fifteen studies were included in the meta-analysis, of which 12 involved gut microbiota distribution indicators and 11 included intestinal microflora relative abundance indicators. Meta-analysis of high-dimensional indicators describing the distribution of the gut microbiota identified a substantial decline in the evenness and richness of the intestinal flora. In addition, the Actinobacteria phylum and Erysipelotrichales and Clostridiales orders were significantly different between the spinal cord injury and sham groups; therefore, they may be the characteristic bacteria in spinal cord injury models. CONCLUSION Our meta-analysis suggested that the gut microbiota in the spinal cord injury animal model group was altered compared with that in the control group, with varying degrees of changes in richness and evenness and potentially pathogenic characteristic flora. More rigorous methodological studies are needed because of the high heterogeneity and limited sample size. Further research is needed to clinically apply intestinal microbiota and potentially guide fecal microbiota transplantation therapy.
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Affiliation(s)
- Zhenye Zhang
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Nan Cheng
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jianfen Liang
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yifan Deng
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ping Xiang
- Department of Medical Quality Management, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ziqing Hei
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xiang Li
- Department of Anesthesiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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9
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Kelbert J, Varkey TC. The microbiome and neurosurgery. Brain Circ 2023; 9:264-265. [PMID: 38284108 PMCID: PMC10821683 DOI: 10.4103/bc.bc_59_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 01/30/2024] Open
Affiliation(s)
- James Kelbert
- Deparment of Neurology, College of Medicine-Phoenix, The University of Arizona, Arizona, USA
| | - Thomas C. Varkey
- Deparment of Neurology, College of Medicine-Phoenix, The University of Arizona, Arizona, USA
- Department of Business Management, Colangelo College of Business, Grand Canyon University, Phoenix, Arizona, USA
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Huang R, Yao Y, Tong X, Wang L, Qian W, Lu J, Zhang W, Liu Y, Wang S, Xian S, Zhu Y, Huang J, Guo X, Gu M, Lv H, Bi W, Meng C, Chang Z, Zhang J, Xu D, Ji S. Tracing the evolving dynamics and research hotspots of microbiota and immune microenvironment from the past to the new era. Microbiol Spectr 2023; 11:e0013523. [PMID: 37768071 PMCID: PMC10581186 DOI: 10.1128/spectrum.00135-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 07/31/2023] [Indexed: 09/29/2023] Open
Abstract
Gut microbiota can regulate many physiological processes within gastrointestinal tract and other distal sites. Dysbiosis may not only influence chronic diseases like the inflammatory bowel disease (IBD), metabolic disease, tumor and its therapeutic efficacy, but also deteriorate acute injuries. This article aims to review the documents in this field and summarize the research hotspots as well as developing processes. Gut microbiota and immune microenvironment-related documents from 1976 to 2022 were obtained from the Web of Science Core Collection database. Bibliometrics was used to assess the core authors and journals, most contributive countries and affiliations together with hotspots in this field and keyword co-occurrence analysis. Data were visualized to help comprehension. Nine hundred and twelve documents about gut microbiota and immune microenvironment were retrieved, and the annual publications increased gradually. The most productive author, country, and affiliation were "Zitvogel L," USA and "UNIV TEXAS MD ANDERSON CANC CTR," respectively. FRONTIERS IN IMMUNOLOGY, CANCERS, and INTERNATIONAL JOURNAL OF MOLECULAR SCIENCE were the periodicals with most publications. Keyword co-occurrence analysis identified three clusters, including gut microbiota, inflammation, and IBD. Combined with the visualized analysis of documents and keyword co-occurrence as well as literature reading, we recognized three key topics of gut microbiota: cancer and therapy; immunity, inflammation and IBD; acute injuries and metabolic diseases. This article revealed researches on gut microbiota and immune microenvironment were growing. More attention should be given to the latest hotspots like gut microbiota, inflammation, IBD, cancer and immunotherapy, acute traumas, and metabolic diseases.IMPORTANCEGut microbiota can regulate many physiological processes within gastrointestinal tract and other distal sites. Dysbiosis may not only influence chronic diseases like inflammatory bowel disease (IBD), metabolic disease, tumor and its therapeutic efficacy, but also deteriorate acute injuries. While the application of bibliometrics in the field of gut microbiota and immune microenvironment still remains blank, which focused more on the regulation of the gut microbiota on the immune microenvironment of different kinds of diseases. Here, we intended to review and summarize the presented documents in gut microbiota and immune microenvironment field by bibliometrics. And we revealed researches on gut microbiota and immune microenvironment were growing. More attention should be given to the latest hotspots like gut microbiota, inflammation, IBD, cancer and immunotherapy, acute traumas, and metabolic diseases.
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Affiliation(s)
- Runzhi Huang
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yuntao Yao
- Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xirui Tong
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Lei Wang
- Beijing Genomics Institute (BGI), Shenzhen, China
| | - Weijin Qian
- Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianyu Lu
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Wei Zhang
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yifan Liu
- Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Siqiao Wang
- Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Shuyuan Xian
- Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Yushu Zhu
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Jie Huang
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xinya Guo
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Minyi Gu
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Hanlin Lv
- Beijing Genomics Institute (BGI), Shenzhen, China
| | - Wenshuai Bi
- Beijing Genomics Institute (BGI), Shenzhen, China
| | - Chenwei Meng
- Beijing Genomics Institute (BGI), Shenzhen, China
| | - Zhengyan Chang
- Department of Pathology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jie Zhang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Orthopaedic Department of Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dayuan Xu
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
| | - Shizhao Ji
- Department of Burn Surgery, First Affiliated Hospital of Naval Medical University, and Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, China
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11
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Peng Y, Wen S, Wang G, Zhang X, Di T, Du G, Chen B, Zhang L. Reconstruction of Gut Bacteria in Spodoptera frugiperda Infected by Beauveria bassiana Affects the Survival of Host Pest. J Fungi (Basel) 2023; 9:906. [PMID: 37755014 PMCID: PMC10532432 DOI: 10.3390/jof9090906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023] Open
Abstract
Spodoptera frugiperda (Lepidoptera: Noctuidae) is a migratory agricultural pest that is devastating on a global scale. Beauveria bassiana is a filamentous entomopathogenic fungus that has a strong pathogenic effect on Lepidoptera pests but little is known about the microbial community in the host gut and the dominant populations in fungus-infected insects. B. bassiana AJS91881 was isolated and identified from the infected larvae of Spodoptera litura. The virulence of AJS91881 to the eggs, larvae, pupae and adults of S. frugiperda was measured. Moreover, the gut microbial community diversity of healthy and fungus-infected insects was analyzed. Our results showed that after treatment with B. bassiana AJS91881, the egg hatching rate, larval survival rate and adult lifespan of the insects were significantly reduced, and the pupae rigor rate was significantly increased compared to that of the control group. Additionally, the gut microbial community was reconstructed after B. bassiana infection. At the phylum and genus level, the relative abundance of the Proteobacteria and Serratia increased significantly in the B. bassiana treatment group. The KEGG function prediction results showed that fungal infection affected insect gut metabolism, environmental information processing, genetic information processing, organism systems and cellular processes. Fungal infection was closely related to the metabolism of various substances in the insect gut. Serratia marcescens was the bacterium with the highest relative abundance after infection by B. bassiana; intestinal bacteria S. marcescens inhibited the infection of insect fungi B. bassiana against the S. frugiperda. The presence of gut bacteria also significantly reduced the virulence of the fungi against the insects when compared to the group with the larvae fed antibiotics that were infected with fungal suspension (Germfree, GF) and healthy larvae that were infected with fungal suspension prepared with an antibiotic solution (+antibiotic). In conclusion, the reconstruction of the insect intestinal bacterial community is an indispensable link for understanding the pathogenicity of B. bassiana against S. frugiperda. Most importantly, in the later stage of fungal infection, the increased abundance of S. marcescens in the insect intestine inhibited the virulence of B. bassiana to some extent. The findings aid in understanding changes in the gut microbiota during the early stages of entomopathogenic fungal infection of insects and the involvement of insect gut microbes in host defense mediated by pathogenic fungal infection. This study is also conducive to understanding the interaction between entomopathogenic fungi, hosts and gut microbes, and provides a new idea for the joint use of entomopathogenic fungi and gut bacteria to control pests.
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Affiliation(s)
| | | | | | | | | | | | - Bin Chen
- Yunnan State Key Laboratory of Conservation and Utilization of Biological Resources, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Y.P.); (S.W.); (G.W.); (X.Z.); (T.D.); (G.D.)
| | - Limin Zhang
- Yunnan State Key Laboratory of Conservation and Utilization of Biological Resources, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Y.P.); (S.W.); (G.W.); (X.Z.); (T.D.); (G.D.)
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12
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Rahman Z, Bhale NA, Dikundwar AG, Dandekar MP. Multistrain Probiotics with Fructooligosaccharides Improve Middle Cerebral Artery Occlusion-Driven Neurological Deficits by Revamping Microbiota-Gut-Brain Axis. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10109-y. [PMID: 37365420 DOI: 10.1007/s12602-023-10109-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2023] [Indexed: 06/28/2023]
Abstract
Recent burgeoning literature unveils the importance of gut microbiota in the neuropathology of post-stroke brain injury and recovery. Indeed, ingestion of prebiotics/probiotics imparts positive effects on post-stroke brain injury, neuroinflammation, gut dysbiosis, and intestinal integrity. However, information on the disease-specific preference of selective prebiotics/probiotics/synbiotics and their underlying mechanism is yet elusive. Herein, we examined the effect of a new synbiotic formulation containing multistrain probiotics (Lactobacillus reuteri UBLRu-87, Lactobacillus plantarum UBLP-40, Lactobacillus rhamnosus UBLR-58, Lactobacillus salivarius UBLS-22, and Bifidobacterium breve UBBr-01), and prebiotic fructooligosaccharides using a middle cerebral artery occlusion (MCAO) model of cerebral ischemia in female and male rats. Three weeks pre-MCAO administration of synbiotic rescinded the MCAO-induced sensorimotor and motor deficits on day 3 post-stroke in rotarod, foot-fault, adhesive removal, and paw whisker test. We also observed a decrease in infarct volume and neuronal death in the ipsilateral hemisphere of synbiotic-treated MCAO rats. The synbiotic treatment also reversed the elevated levels/mRNA expression of the glial fibrillary acidic protein (GFAP), NeuN, IL-1β, TNF-α, IL-6, matrix metalloproteinase-9, and caspase-3 and decreased levels of occludin and zonula occludens-1 in MCAO rats. 16S rRNA gene-sequencing data of intestinal contents indicated an increase in genus/species of Prevotella (Prevotella copri), Lactobacillus (Lactobacillus reuteri), Roseburia, Allobaculum, and Faecalibacterium prausnitzii, and decreased abundance of Helicobacter, Desulfovibrio, and Akkermansia (Akkermansia muciniphila) in synbiotic-treated rats compared to the MCAO surgery group. These findings confer the potential benefits of our novel synbiotic preparation for MCAO-induced neurological dysfunctions by reshaping the gut-brain-axis mediators in rats.
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Affiliation(s)
- Ziaur Rahman
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India
| | - Nagesh A Bhale
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Amol G Dikundwar
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, India
| | - Manoj P Dandekar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, 500037, Telangana, India.
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13
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Cotoia A, Paradiso R, Ferrara G, Borriello G, Santoro F, Spina I, Mirabella L, Mariano K, Fusco G, Cinnella G, Singer P. Modifications of lung microbiota structure in traumatic brain injury ventilated patients according to time and enteral feeding formulas: a prospective randomized study. Crit Care 2023; 27:244. [PMID: 37344845 PMCID: PMC10283314 DOI: 10.1186/s13054-023-04531-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Specialized diets enriched with immune nutrients could be an important supplement in patients (pts) with acute traumatic brain injury (TBI). Omega-3 and arginine may interact with immune response and microbiota. No data are available about the role of the specialized diets in modulating the lung microbiota, and little is known about the influence of lung microbiota structure in development of ventilator-associated pneumonia (VAP) in TBI pts. The aims of this study are to evaluate the impact of specific nutrients on the lung microbiota and the variation of lung microbiota in TBI pts developing VAP. METHODS A cohort of 31 TBI pts requiring mechanical ventilation in ICU was randomized for treatment with specialized (16pts) or standard nutrition (15pts). Alpha and beta diversity of lung microbiota were analyzed from bronco Alveolar Lavage (BAL) samples collected at admission and 7 days post-ICU admission in both groups. A further analysis was carried out on the same samples retrospectively grouped in VAP or no VAP pts. RESULTS None developed VAP in the first week. Thereafter, ten out of thirty-one pts developed VAP. The BAL microbiota on VAP group showed significant differences in beta diversity and Staphylococcus and Acinetobacter Genera were high. The specialized nutrition had influence on beta diversity that reached statistical significance only in Bray-Curtis distance. CONCLUSION Our data suggest that TBI patients who developed VAP during ICU stay have different structures of BAL microbiota either at admission and at 7 days post-ICU admission, while no correlation has been observed between different enteral formulas and microbiota composition in terms of richness and evenness. These findings suggest that targeting the lung microbiota may be a promising approach for preventing infections in critically ill patients.
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Affiliation(s)
- A. Cotoia
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - R. Paradiso
- Department of Animal Health, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, Italy
| | - G. Ferrara
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - G. Borriello
- Department of Animal Health, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, Italy
| | - F. Santoro
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - I. Spina
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - L. Mirabella
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - K. Mariano
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - G. Fusco
- Department of Animal Health, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, Italy
| | - G. Cinnella
- Department of Intensive Care, University Hospital of Foggia, Foggia, Italy
| | - P. Singer
- Intensive Care Unit Herzlia Médical Center, Herzliya, Israel
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14
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Han S, Cai L, Chen P, Kuang W. A study of the correlation between stroke and gut microbiota over the last 20years: a bibliometric analysis. Front Microbiol 2023; 14:1191758. [PMID: 37350780 PMCID: PMC10282156 DOI: 10.3389/fmicb.2023.1191758] [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: 03/22/2023] [Accepted: 05/19/2023] [Indexed: 06/24/2023] Open
Abstract
Purpose This study intends to uncover a more thorough knowledge structure, research hotspots, and future trends in the field by presenting an overview of the relationship between stroke and gut microbiota in the past two decades. Method Studies on stroke and gut microbiota correlations published between 1st January 2002 and 31st December 2021 were retrieved from the Web of Science Core Collection and then visualized and scientometrically analyzed using CiteSpace V. Results A total of 660 papers were included in the study, among which the United States, the United Kingdom, and Germany were the leading research centers. Cleveland Clinic, Southern Medical University, and Chinese Academy of Science were the top three institutions. The NATURE was the most frequently co-cited journal. STANLEY L HAZEN was the most published author, and Tang WHW was the most cited one. The co-occurrence analysis revealed eight clusters (i.e., brain-gut microbiota axis, fecal microbiome transplantation, gut microbiota, hypertension, TMAO, ischemic stroke, neuroinflammation, atopobiosis). "gut microbiota," "Escherichia coli," "cardiovascular disease," "risk," "disease," "ischemic stroke," "stroke," "metabolism," "inflammation," and "phosphatidylcholine" were the most recent keyword explosions. Conclusion Findings suggest that in the next 10 years, the number of publications produced annually may increase significantly. Future research trends tend to concentrate on the mechanisms of stroke and gut microbiota, with the inflammation and immunological mechanisms, TMAO, and fecal transplantation as hotspots. And the relationship between these mechanisms and a particular cardiovascular illness may also be a future research trend.
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Affiliation(s)
- Shengnan Han
- Clinical Medical College of Acupuncture, Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Longhui Cai
- First School of Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peipei Chen
- School of Medical Technology, Qiqihar Medical College, Qiqihar, Heilongjiang, China
| | - Weihong Kuang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, School of Pharmacy, Guangdong Medical University, Dongguan, China
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15
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Jiang M, Zhang X, Zhang Y, Liu Y, Geng R, Liu H, Sun Y, Wang B. The Effects of Perioperative Probiotics on Postoperative Gastrointestinal Function in Patients with Brain Tumors: A Randomized, Placebo-Controlled Study. Nutr Cancer 2023; 75:1132-1142. [PMID: 37139872 DOI: 10.1080/01635581.2023.2178929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
The incidence of postoperative gastrointestinal dysfunction among neurosurgical patients is as high as 80%. Probiotics help to maintain gastrointestinal barrier defense, provide competitive adherence to mucus and epithelial cells, and regulate gastrointestinal motility. Therefore, the purpose of this study was to investigate whether probiotics enhance gastrointestinal health after craniotomy in patients with brain tumors. This study was a 15-day, prospective, randomized, double-blind, placebo-controlled trial for patients being treated with elective craniotomy for brain tumors. Participants were randomly divided into the probiotics group (4 g probiotics, twice daily) and placebo group. The primary outcome was the time of first stool after surgery. The secondary outcomes included assessments of the gastrointestinal function, changes in gastrointestinal permeability and clinical outcomes. We enrolled a total of 200 participants (probiotics: 100; placebo: 100) and followed the principles of intention-to-treat analysis. The time of first stool and flatus were significantly shorter in the probiotics group compared to the placebo group (P < 0.001, respectively). No significant trends were observed for any other of the secondary outcome variables. Our findings suggest that probiotics can improve the gastrointestinal mobility of patients received craniotomy, and this improvement cannot be explained by changes in gastrointestinal permeability.
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Affiliation(s)
- Mengyang Jiang
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Xiaoyu Zhang
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Yiqiang Zhang
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Yang Liu
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Ran Geng
- Zhongke Yikang Biological Technology Company, Beijing, China
| | - Haixia Liu
- Zhongke Yikang Biological Technology Company, Beijing, China
| | - Yongxing Sun
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Baoguo Wang
- Department of Anesthesiology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
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16
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Liu Y, Chu M, Wang D, Luo Y, Liu Z, Zhao J. Risk factors for small intestinal bacterial overgrowth in patients with acute ischaemic stroke. J Med Microbiol 2023; 72. [PMID: 36762525 DOI: 10.1099/jmm.0.001666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Introduction. The intestinal flora has become a promising new target in acute ischaemic stroke (AIS), and small intestinal bacterial overgrowth (SIBO) is a common pathological condition of the intestinal flora. Recently, the lactose hydrogen-methane breath test has emerged as a non-invasive and economical method for the detection of SIBO in AIS patients. Exploring the prevalence of SIBO and its associated risk factors will provide a clinical basis for the association between intestinal flora and AIS.Hypothesis/Gap Statement. Given that the prevalence of SIBO and its risk factors in patients with AIS remain to be studied, there is a need to investigate them.Aim. This study aimed to investigate the prevalence and risk factors of SIBO in patients with AISMethodology. Eighty patients tested for SIBO using the lactulose hydrogen-methane breath test were evaluated. Patients were divided into SIBO-positive and SIBO-negative groups according to the presence or absence of SIBO, respectively. The baseline characteristics and clinical biochemical indicators of the patients were compared between the two groups. The independent risk factors and predictive value of SIBO in AIS patients were determined using multivariate logistic regression and receiver operating characteristic (ROC) curve analyses.Results. Of the 80 consecutive patients with AIS, 23 (28.8 %) tested positive for SIBO. Triglyceride (TG) and homocysteine (Hcy) levels were identified as independent risk factors for SIBO in patients with AIS using multivariate logistic regression analysis (P<0.005). ROC curve analysis showed that the area under the curve (AUC) of TG was 0.690 (95 % CI 0.577-0.789, P=0.002). The sensitivity, specificity and optimal cut-off values were 95.7 %, 35.1 % and 1.14 mmol l-1, respectively. The AUC of Hcy was 0.676 (95 % CI 0.562-0.776, P=0.01). The sensitivity, specificity and optimal cut-off values were 73.9 %, 59.7 % and 14.1 µmol-1, respectively. When TG and Hcy levels were combined, the AUC increased to 0.764 (95 % CI 0.656-0.852, P<0.001). The specificity and sensitivity were 61.4 and 82.6 %, respectively. This showed that the combined detection of TG and Hcy levels had a higher predictive valueConclusion. The prevalence of SIBO in patients with AIS was 28.8 %. TG and Hcy levels are independent risk factors for SIBO in patients with AIS. Both markers had good predictive value for the occurrence of SIBO. In the future, we should actively utilize these indicators to prevent intestinal flora imbalance and the occurrence of SIBO.
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Affiliation(s)
- Yang Liu
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, PR China
| | - Min Chu
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, PR China
| | - Daosheng Wang
- Department of Neurosurgery, Minhang Hospital, Fudan University, Shanghai, PR China
| | - Yunhe Luo
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, PR China
| | - Zhuohang Liu
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, PR China
| | - Jing Zhao
- Department of Neurology, Minhang Hospital, Fudan University, Shanghai, PR China
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17
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Zhou SY, Guo ZN, Yang Y, Qu Y, Jin H. Gut-brain axis: Mechanisms and potential therapeutic strategies for ischemic stroke through immune functions. Front Neurosci 2023; 17:1081347. [PMID: 36777635 PMCID: PMC9911679 DOI: 10.3389/fnins.2023.1081347] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
After an ischemic stroke (IS) occurs, immune cells begin traveling to the brain and immune system from the gut and gastrointestinal tract, where most of them typically reside. Because the majority of the body's macrophages and more than 70% of the total immune cell pool are typically found within the gut and gastrointestinal tract, inflammation and immune responses in the brain and immune organs require the mobilization of a large number of immune cells. The bidirectional communication pathway between the brain and gut is often referred to as the gut-brain axis. IS usually leads to intestinal motility disorders, dysbiosis of intestinal microbiota, and a leaky gut, which are often associated with poor prognosis in patients with IS. In recent years, several studies have suggested that intestinal inflammation and immune responses play key roles in the development of IS, and thus may become potential therapeutic targets that can drive new therapeutic strategies. However, research on gut inflammation and immune responses after stroke remains in its infancy. A better understanding of gut inflammation and immune responses after stroke may be important for developing effective therapies. This review discusses the immune-related mechanisms of the gut-brain axis after IS and compiles potential therapeutic targets to provide new ideas and strategies for the future effective treatment of IS.
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Affiliation(s)
- Sheng-Yu Zhou
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Zhen-Ni Guo
- Department of Neurology, Stroke Center & Clinical Trial and Research Center for Stroke, The First Hospital of Jilin University, Changchun, China
| | - Yi Yang
- Department of Neurology, Stroke Center & Clinical Trial and Research Center for Stroke, The First Hospital of Jilin University, Changchun, China
| | - Yang Qu
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Hang Jin
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China,*Correspondence: Hang Jin,
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18
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Willman J, Willman M, Reddy R, Fusco A, Sriram S, Mehkri Y, Charles J, Goeckeritz J, Lucke-Wold B. Gut microbiome and neurosurgery: Implications for treatment. CLINICAL AND TRANSLATIONAL DISCOVERY 2022; 2:e139. [PMID: 36268259 PMCID: PMC9577538 DOI: 10.1002/ctd2.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 09/19/2022] [Indexed: 11/06/2022]
Abstract
Introduction The aim of this review is to summarize the current understanding of the gut-brain axis (GBA), its impact on neurosurgery, and its implications for future treatment. Background An abundance of research has established the existence of a collection of pathways between the gut microbiome and the central nervous system (CNS), commonly known as the GBA. Complicating this relationship, the gut microbiome bacterial diversity appears to change with age, antibiotic exposure and a number of external and internal factors. Methods In this paper, we present the current understanding of the key protective and deleterious roles the gut microbiome plays in the pathogenesis of several common neurosurgical concerns. Results Specifically, we examine how spinal cord injury, traumatic brain injury and stroke may cause gut microbial dysbiosis. Furthermore, this link appears to be bidirectional as gut dysbiosis contributes to secondary CNS injury in each of these ailment settings. This toxic cycle may be broken, and the future secondary damage rescued by timely, therapeutic, gut microbiome modification. In addition, a robust gut microbiome appears to improve outcomes in brain tumour treatment. There are several primary routes by which microbiome dysbiosis may be ameliorated, including faecal microbiota transplant, oral probiotics, bacteriophages, genetic modification of gut microbiota and vagus nerve stimulation. Conclusion The GBA represents an important component of patient care in the field of neurosurgery. Future research may illuminate ideal methods of therapeutic microbiome modulation in distinct pathogenic settings.
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Affiliation(s)
- Jonathan Willman
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Matthew Willman
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Ramya Reddy
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Anna Fusco
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Sai Sriram
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Yusuf Mehkri
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Jude Charles
- Department of Neurosurgery, Jackson Memorial Hospital, Miami, Florida, USA
| | - Joel Goeckeritz
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
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19
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Sol J, Colàs-Campàs L, Mauri-Capdevila G, Molina-Seguin J, Galo-Licona JD, Torres-Querol C, Aymerich N, Ois Á, Roquer J, Tur S, García-Carreira MDC, Martí-Fàbregas J, Cruz-Culebras A, Segura T, Pamplona R, Portero-Otín M, Arqué G, Jové M, Purroy F. Ischemia preconditioning induces an adaptive response that defines a circulating metabolomic signature in ischemic stroke patients. J Cereb Blood Flow Metab 2022; 42:2201-2215. [PMID: 35869638 PMCID: PMC9670009 DOI: 10.1177/0271678x221116288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transient ischemic attacks (TIAs) before an acute ischemic stroke (AIS) could induce ischemic tolerance (IT) phenomena. with an endogenous neuroprotective role (Ischemic preconditioning. IPC). A consecutive prospective cohort of patients with AIS were recruited from 8 different hospitals. Participants were classified by those with non-previous recent TIA vs. previous TIA (within seven days. TIA ≤7d). A total of 541 AIS patients were recruited. 40 (7.4%). of them had previous TIA ≤7d. In line with IPC. patients with TIA ≤7d showed: 1) a significantly less severe stroke at admission by NIHSS score. 2) a better outcome at 7-90 days follow-up and reduced infarct volumes. 3) a specific upregulated metabolomics/lipidomic profile composed of diverse lipid categories. Effectively. IPC activates an additional adaptive response on increasing circulation levels of structural and bioactive lipids to facilitate functional recovery after AIS which may support biochemical machinery for neuronal survival. Furthermore. previous TIA before AIS seems to facilitate the production of anti-inflammatory mediators that contribute to a better immune response. Thus. the IT phenomena contributes to a better adaptation of further ischemia. Our study provides first-time evidence of a metabolomics/lipidomic signature related to the development of stroke tolerance in AIS patients induced by recent TIA.
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Affiliation(s)
- Joaquim Sol
- Experimental Medicine Department, Lleida University-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain.,Institut Català de la Salut (ICS), Atenció Primària, Lleida, Spain.,Research Support Unit Lleida, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Lleida, Spain
| | - Laura Colàs-Campàs
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain
| | - Gerard Mauri-Capdevila
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain.,Stroke Unit, Department of Neurology, Hospital Universitari Arnau de Vilanova de Lleida, Lleida, Spain
| | - Jessica Molina-Seguin
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain
| | - José Daniel Galo-Licona
- Experimental Medicine Department, Lleida University-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Coral Torres-Querol
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain
| | | | | | | | - Silvia Tur
- Son Espases Hospital, Palma de Mallorca, Spain
| | | | | | | | - Tomás Segura
- Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - Reinald Pamplona
- Experimental Medicine Department, Lleida University-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Manel Portero-Otín
- Experimental Medicine Department, Lleida University-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Gloria Arqué
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain
| | - Mariona Jové
- Experimental Medicine Department, Lleida University-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Francisco Purroy
- Clinical Neurosciences Group, Institut de Recerca Biomèdica de Lleida, UdL, Lleida, Spain.,Stroke Unit, Department of Neurology, Hospital Universitari Arnau de Vilanova de Lleida, Lleida, Spain
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20
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Zhang Y, Lang R, Guo S, Luo X, Li H, Liu C, Dong W, Bao C, Yu Y. Intestinal microbiota and melatonin in the treatment of secondary injury and complications after spinal cord injury. Front Neurosci 2022; 16:981772. [PMID: 36440294 PMCID: PMC9682189 DOI: 10.3389/fnins.2022.981772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/24/2022] [Indexed: 09/12/2023] Open
Abstract
Spinal cord injury (SCI) is a central nervous system (CNS) disease that can cause sensory and motor impairment below the level of injury. Currently, the treatment scheme for SCI mainly focuses on secondary injury and complications. Recent studies have shown that SCI leads to an imbalance of intestinal microbiota and the imbalance is also associated with complications after SCI, possibly through the microbial-brain-gut axis. Melatonin is secreted in many parts of the body including pineal gland and gut, effectively protecting the spinal cord from secondary damage. The secretion of melatonin is affected by circadian rhythms, known as the dark light cycle, and SCI would also cause dysregulation of melatonin secretion. In addition, melatonin is closely related to the intestinal microbiota, which protects the barrier function of the gut through its antioxidant and anti-inflammatory effects, and increases the abundance of intestinal microbiota by influencing the metabolism of the intestinal microbiota. Furthermore, the intestinal microbiota can influence melatonin formation by regulating tryptophan and serotonin metabolism. This paper summarizes and reviews the knowledge on the relationship among intestinal microbiota, melatonin, and SCI in recent years, to provide new theories and ideas for clinical research related to SCI treatment.
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Affiliation(s)
- Yiwen Zhang
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui Lang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Shunyu Guo
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoqin Luo
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Huiting Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Cencen Liu
- Department of Pathology, People’s Hospital of Zhongjiang County, Deyang, China
| | - Wei Dong
- Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Changshun Bao
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Neurological Diseases and Brain Function Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yang Yu
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Collaborative Innovation Center for Prevention of Cardiovascular Diseases, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
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21
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Zhang N, Wang H, Wang X, Tian M, Tian Y, Li Q, Liang C, Peng X, Ding J, Wu X, Tan H. Combination effect between gut microbiota and traditional potentially modifiable risk factors for first-ever ischemic stroke in Tujia, Miao and Han populations in China. Front Mol Neurosci 2022; 15:922399. [PMID: 36385753 PMCID: PMC9641726 DOI: 10.3389/fnmol.2022.922399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 08/15/2022] [Indexed: 11/30/2022] Open
Abstract
China has had explosive growth in ischemic stroke (IS) burden with significant ethnic and geographic disparities. The aim of this study was to explore the possible combination effect between gut microbiota and traditional potentially modifiable risk factors for IS among two ethnic minorities (Tujia and Miao) and the Han population. Herein, we first used the 16 S rRNA sequencing to compare the gut microbial compositions of 82 patients with first-ever IS vs. 82 normal controls (NCs) among Han, Tujia, and Miao people between 1 May 2018 and 30 April 2019, from Xiangxi Tujia and Miao Autonomous Prefecture in China. An additive model was used to study the interaction between traditional risk factors and gut microbiota with R software. Linear discriminant analysis (LDA) and LDA effect size (LEfSe) results showed that the identified key gut microbiota's taxonomic composition varied in different ethnicity between the IS patients and NCs. Furthermore, families Lactobacillaceae, Enterococcaceae, Streptococcaceae, and Enterobacteriaceae were found to be positively correlated with high-risk factors and negatively correlated with preventive factors in the IS patients, but families Ruminococcaceae and Lachnospiraceae were just the opposite in the NCs. There were additive interactions between traditional risk factors (systolic blood pressure, diastolic blood pressure, and high-sensitive C-reactive protein) and family Enterococcaceae for first-ever IS with the attributable proportion due to the interaction was 0.74, 0.71, and 0.85, respectively; and the synergy index was 4.45, 3.78, and 7.01, respectively. This preliminary but promising study showed that the gut microbiota disturbances may potentially interact to IS with different ethnic host's traditional risk factors.
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Affiliation(s)
- Na Zhang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
- Department of Geriatric Rehabilitation, Hunan Provincial Rehabilitation Hospital, Changsha, China
| | - Haoren Wang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xiaolei Wang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Mengyuan Tian
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yong Tian
- Department of Neurology, The First Affiliated Hospital of Jishou University, Xiangxi, China
| | - Qi Li
- Department of Planned Immunity, Xiangxi Center for Disease Prevention and Control, Xiangxi, China
| | - Chengcai Liang
- Department of Neurology, The First Affiliated Hospital of Jishou University, Xiangxi, China
| | - Xiaowei Peng
- Department of Neurology, The First Affiliated Hospital of Jishou University, Xiangxi, China
| | - Jian Ding
- Department of Geriatric Rehabilitation, Hunan Provincial Rehabilitation Hospital, Changsha, China
- *Correspondence: Hongzhuan Tan
| | - Xinrui Wu
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
- Jishou University School of Medicine, Xiangxi, China
- Jian Ding
| | - Hongzhuan Tan
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
- Xinrui Wu
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22
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Luo J, Chen Y, Tang G, Li Z, Yang X, Shang X, Huang T, Huang G, Wang L, Han Y, Zhou Y, Wang C, Wu B, Guo Q, Gong B, Li M, Wang R, Yang J, Cui W, Zhong J, Zhong LL, Guo J. Gut microbiota composition reflects disease progression, severity and outcome, and dysfunctional immune responses in patients with hypertensive intracerebral hemorrhage. Front Immunol 2022; 13:869846. [PMID: 36439158 PMCID: PMC9699794 DOI: 10.3389/fimmu.2022.869846] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 06/08/2022] [Indexed: 07/28/2023] Open
Abstract
OBJECTIVE In this study, we aimed to explore the alterations in gut microbiota composition and cytokine responses related to disease progression, severity, and outcomes in patients with hypertensive intracerebral hemorrhage (ICH). METHODS Fecal microbiota communities of 64 patients with ICH, 46 coronary heart disease controls, and 23 healthy controls were measured by sequencing the V3-V4 region of the 16S ribosomal RNA (16S rRNA) gene. Serum concentrations of a broad spectrum of cytokines were examined by liquid chips and ELISA. Relationships between clinical phenotypes, microbiotas, and cytokine responses were analyzed in the group with ICH and stroke-associated pneumonia (SAP), the major complication of ICH. RESULTS In comparison with the control groups, the gut microbiota of the patients with ICH had increased microbial richness and diversity, an expanded spectrum of facultative anaerobes and opportunistic pathogens, and depletion of anaerobes. Enterococcus enrichment and Prevotella depletion were more significant in the ICH group and were associated with the severity and functional outcome of ICH. Furthermore, Enterococcus enrichment and Prevotella depletion were also noted in the SAP group in contrast to the non-SAP group. Enterococci were also promising factors in the prognosis of ICH. The onset of ICH induced massive, rapid activation of the peripheral immune system. There were 12 cytokines (Eotaxin, GM-CSF, IL-8, IL-9, IL-10, IL-12p70, IL-15, IL-23, IL-1RA, IP-10, RANTES, and TNF-α) changed significantly with prolongation of ICH, and the Th2 responses correlated with the 90-day outcomes. Cytokines TNF-α, IP-10, IL-1RA, IL-8, IL-18, and MIP-1β in SAP group significantly differed from non-SAP group. Among these cytokines, only IP-10 levels decreased in the SAP group. Enterococcus was positively associated with IL-1RA and negatively associated with IP-10, while Prevotella was inversely associated in both the ICH and SAP groups. CONCLUSION This study revealed that gut dysbiosis with enriched Enterococcus and depleted Prevotella increased the risk of ICH and subsequently SAP. The altered gut microbiota composition and serum cytokine profiles are potential biomarkers that reflect the inciting physiologic insult/stress involved with ICH.
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Affiliation(s)
- Jielian Luo
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Yang Chen
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guanghai Tang
- Department of Neurology, Shenyang Second Hospital of Traditional Chinese Medicine, Shenyang, China
| | - Zhuo Li
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Genetic Testing Lab, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaobo Yang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
| | - Xiaoxiao Shang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tao Huang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gan Huang
- Department of Neurology, Yangjiang Hospital of Traditional Chinese Medicine, Yangjiang, China
| | - Lixin Wang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yun Han
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Department of Intensive Care Unit, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuexiang Zhou
- Department of Community Healthcare Service, Shenzhen FuYong People’s Hospital, Shenzhen, China
| | - Chuyang Wang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Biological Resource Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bin Wu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- Genetic Testing Lab, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qihua Guo
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Baoying Gong
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Mengzhen Li
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Ruihua Wang
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- The Fourth Affiliated Hospital of Guangzhou Medical University Research Team of Traditional Chinese Medicine for the Prevention and Treatment of Cerebral Hemorrhage, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiecong Yang
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Wanzhen Cui
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Jianbin Zhong
- Department of Neurology, The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Linda Ld Zhong
- Hong Kong Chinese Medicine Clinical Study Centre, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Jianwen Guo
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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23
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Davis BT, Chen Z, Islam MB, Timken ME, Procissi D, Schwulst SJ. POSTINJURY FECAL MICROBIOME TRANSPLANT DECREASES LESION SIZE AND NEUROINFLAMMATION IN TRAUMATIC BRAIN INJURY. Shock 2022; 58:287-294. [PMID: 36256625 PMCID: PMC9586470 DOI: 10.1097/shk.0000000000001979] [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] [Indexed: 11/05/2022]
Abstract
ABSTRACT Background: Traumatic brain injury (TBI) is an underrecognized public health threat. The constitutive activation of microglia after TBI has been linked to long-term neurocognitive deficits and the progression of neurodegenerative disease. Evolving evidence indicates a critical role for the gut-brain axis in this process. Specifically, TBI has been shown to induce the depletion of commensal gut bacteria. The resulting gut dysbiosis is associated with neuroinflammation and disease. Hypothesis: We hypothesized that fecal microbiota transplantation would attenuate microglial activation and improve neuropathology after TBI. Methods: C57Bl/6 mice were subjected to severe TBI (n = 10) or sham injury (n = 10) via an open-head controlled cortical impact. The mice underwent fecal microbiota transplantation (FMT) or vehicle alone via oral gavage once weekly for 4 weeks after injury. At 59 days after TBI, mice underwent three-dimensional, contrast-enhanced magnetic resonance imaging. Following imaging, mice were killed, brains harvested at 60 DPI, and CD45+ cells isolated via florescence-activated cell sorting. cDNA libraries were prepared using the 10x Genomics Chromium Single Cell 3' Reagent kit followed by sequencing on a HiSeq4000 instrument, and computational analysis was performed. Results: Fecal microbiota transplantation resulted in a >marked reduction of ventriculomegaly (P < 0.002) and preservation of white matter connectivity at 59 days after TBI (P < 0.0001). In addition, microglia from FMT-treated mice significantly reduced inflammatory gene expression and enriched pathways involving the heat-shock response compared with mice treated with vehicle alone. Conclusions: We hypothesized that restoring gut microbial community structure via FMT would attenuate microglial activation and reduce neuropathology after TBI. Our data demonstrated significant preservation of cortical volume and white matter connectivity after an injury compared with mice treated with vehicle alone. This preservation of neuroanatomy after TBI was associated with a marked reduction in inflammatory gene expression within the microglia of FMT-treated mice. Microglia from FMT-treated mice enriched pathways in the heat-shock response, which is known to play a neuroprotective role in TBI and other neurodegenerative disease processes.
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Affiliation(s)
- Booker T Davis
- Department of Surgery, Division of Trauma and Critical Care, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Zhangying Chen
- Department of Surgery, Division of Trauma and Critical Care, Northwestern University Feinberg School of Medicine, Chicago IL
- Driskill Graduate Program in Life Science, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Mecca B.A.R. Islam
- Department of Surgery, Division of Trauma and Critical Care, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Madeline E. Timken
- Department of Surgery, Division of Trauma and Critical Care, Northwestern University Feinberg School of Medicine, Chicago IL
| | - Daniele Procissi
- Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, USA
- Center for Translational Pain Research Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Steven J. Schwulst
- Department of Surgery, Division of Trauma and Critical Care, Northwestern University Feinberg School of Medicine, Chicago IL
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24
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Ghadiri F, Ebadi Z, Asadollahzadeh E, Naser Moghadasi A. Gut microbiome in multiple sclerosis-related cognitive impairment. Mult Scler Relat Disord 2022; 67:104165. [PMID: 36152393 DOI: 10.1016/j.msard.2022.104165] [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: 07/20/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 11/29/2022]
Abstract
Cognition is one of the most evaluated neurologic subjects with which the gut microbiome is supposed to be associated. Cognitive impairment is a prevalent finding in patients with multiple sclerosis (MS). Here, we are about to study the current evidence on the effect of gut microbiota on cognition and MS. Although no direct evidence is in hand, putting all indirect research together, one could think of the hypothetical benefit of brain-gut axis interventions (possibly diet changes, probiotic administration, microbiota transplant) to solve the drastic problem of cognitive impairment in MS. Hence, researchers are encouraged to scan this horizon in order to fill the knowledge gaps in the field.
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Affiliation(s)
- Fereshteh Ghadiri
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ebadi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Elnaz Asadollahzadeh
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
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25
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Dobson GP, Morris JL, Letson HL. Why are bleeding trauma patients still dying? Towards a systems hypothesis of trauma. Front Physiol 2022; 13:990903. [PMID: 36148305 PMCID: PMC9485567 DOI: 10.3389/fphys.2022.990903] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/12/2022] [Indexed: 12/14/2022] Open
Abstract
Over the years, many explanations have been put forward to explain early and late deaths following hemorrhagic trauma. Most include single-event, sequential contributions from sympathetic hyperactivity, endotheliopathy, trauma-induced coagulopathy (TIC), hyperinflammation, immune dysfunction, ATP deficit and multiple organ failure (MOF). We view early and late deaths as a systems failure, not as a series of manifestations that occur over time. The traditional approach appears to be a by-product of last century’s highly reductionist, single-nodal thinking, which also extends to patient management, drug treatment and drug design. Current practices appear to focus more on alleviating symptoms rather than addressing the underlying problem. In this review, we discuss the importance of the system, and focus on the brain’s “privilege” status to control secondary injury processes. Loss of status from blood brain barrier damage may be responsible for poor outcomes. We present a unified Systems Hypothesis Of Trauma (SHOT) which involves: 1) CNS-cardiovascular coupling, 2) Endothelial-glycocalyx health, and 3) Mitochondrial integrity. If central control of cardiovascular coupling is maintained, we hypothesize that the endothelium will be protected, mitochondrial energetics will be maintained, and immune dysregulation, inflammation, TIC and MOF will be minimized. Another overlooked contributor to early and late deaths following hemorrhagic trauma is from the trauma of emergent surgery itself. This adds further stress to central control of secondary injury processes. New point-of-care drug therapies are required to switch the body’s genomic and proteomic programs from an injury phenotype to a survival phenotype. Currently, no drug therapy exists that targets the whole system following major trauma.
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26
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Unilateral Cervical Vagotomy Modulates Immune Cell Profiles and the Response to a Traumatic Brain Injury. Int J Mol Sci 2022; 23:ijms23179851. [PMID: 36077246 PMCID: PMC9456009 DOI: 10.3390/ijms23179851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
TBI induces splenic B and T cell expansion that contributes to neuroinflammation and neurodegeneration. The vagus nerve, the longest of the cranial nerves, is the predominant parasympathetic pathway allowing the central nervous system (CNS) control over peripheral organs, including regulation of inflammatory responses. One way this is accomplished is by vagus innervation of the celiac ganglion, from which the splenic nerve innervates the spleen. This splenic innervation enables modulation of the splenic immune response, including splenocyte selection, activation, and downstream signaling. Considering that the left and right vagus nerves have distinct courses, it is possible that they differentially influence the splenic immune response following a CNS injury. To test this possibility, immune cell subsets were profiled and quantified following either a left or a right unilateral vagotomy. Both unilateral vagotomies caused similar effects with respect to the percentage of B cells and in the decreased percentage of macrophages and T cells following vagotomy. We next tested the hypothesis that a left unilateral vagotomy would modulate the splenic immune response to a traumatic brain injury (TBI). Mice received a left cervical vagotomy or a sham vagotomy 3 days prior to a fluid percussion injury (FPI), a well-characterized mouse model of TBI that consistently elicits an immune and neuroimmune response. Flow cytometric analysis showed that vagotomy prior to FPI resulted in fewer CLIP+ B cells, and CD4+, CD25+, and CD8+ T cells. Vagotomy followed by FPI also resulted in an altered distribution of CD11bhigh and CD11blow macrophages. Thus, transduction of immune signals from the CNS to the periphery via the vagus nerve can be targeted to modulate the immune response following TBI.
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27
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Gut Microbiota Dysbiosis after Traumatic Brain Injury Contributes to Persistent Microglial Activation Associated with Upregulated Lyz2 and Shifted Tryptophan Metabolic Phenotype. Nutrients 2022; 14:nu14173467. [PMID: 36079724 PMCID: PMC9459947 DOI: 10.3390/nu14173467] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 11/22/2022] Open
Abstract
Traumatic brain injury (TBI) is a common cause of disability and mortality, affecting millions of people every year. The neuroinflammation and immune response post-TBI initially have neuroprotective and reparative effects, but prolonged neuroinflammation leads to secondary injury and increases the risk of chronic neurodegenerative diseases. Persistent microglial activation plays a critical role in chronic neuroinflammation post-TBI. Given the bidirectional communication along the brain–gut axis, it is plausible to suppose that gut microbiota dysbiosis post-TBI influences microglial activation. In the present study, hippocampal microglial activation was observed at 7 days and 28 days post-TBI. However, in TBI mice with a depletion of gut microbiota, microglia were activated at 7 days post-TBI, but not at 28 days post-TBI, indicating that gut microbiota contributes to the long-term activation of microglia post-TBI. In addition, in conventional mice colonized by the gut microbiota of TBI mice using fecal microbiota transplant (FMT), microglial activation was observed at 28 days post-TBI, but not at 7 days post-TBI, supporting the role of gut microbiota dysbiosis in persistent microglial activation post-TBI. The RNA sequencing of the hippocampus identified a microglial activation gene, Lyz2, which kept upregulation post-TBI. This persistent upregulation was inhibited by oral antibiotics and partly induced by FMT. 16s rRNA gene sequencing showed that the composition and function of gut microbiota shifted over time post-TBI with progressive dysbiosis, and untargeted metabolomics profiling revealed that the tryptophan metabolic phenotype was differently reshaped at 7 days and 28 days post-TBI, which may play a role in the persistent upregulation of Lyz2 and the activation of microglia. This study implicates that gut microbiota and Lyz2 are potential targets for the development of novel strategies to address persistent microglial activation and chronic neuroinflammation post-TBI, and further investigations are warranted to elucidate the specific mechanism.
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28
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Hamilton AM, Sampson TR. Traumatic spinal cord injury and the contributions of the post-injury microbiome. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 167:251-290. [PMID: 36427958 DOI: 10.1016/bs.irn.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Spinal cord injuries are an enormous burden on injured individuals and their caregivers. The pathophysiological effects of injury are not limited to the spine and limb function, but affect numerous body systems. Growing observations in human studies and experimental models suggest that the gut microbiome is altered following spinal cord injury. Given the importance of signals derived from the gut microbiome for host physiology, it is possible that injury-triggered dysbiosis subsequently affects aspects of recovery. Here, we review emerging literature on the role of the microbiome following spinal cord injury. Specifically, we highlight findings from both human and experimental studies that correlate taxonomic changes to aspects of injury recovery. Examination of both observational and emerging interventional studies supports the notion that future therapeutic avenues for spinal cord injury pathologies may lie at the interface of the host and indigenous microbes.
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Affiliation(s)
- Adam M Hamilton
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Timothy R Sampson
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States.
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29
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Asai N, Kato H, Mikamo H. The pathophysiological mechanisms of COVID-19 and host immunity, with emphasis on the dysbiosis of the lung and gut microbiomes and pregnancy. Respir Investig 2022; 60:496-502. [PMID: 35422403 PMCID: PMC8977498 DOI: 10.1016/j.resinv.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/27/2022] [Accepted: 03/07/2022] [Indexed: 11/24/2022]
Abstract
The coronavirus 2019 (COVID-19) pandemic is a health and economic crisis. It has also highlighted human relational problems, such as racism and conflicts between nations. Although vaccination programs against the severe respiratory syndrome coronavirus 2 (SARS-CoV-2) have started worldwide, the pandemic is ongoing, and people are struggling. The mechanism of disease severity in COVID-19 is multifactorial, complicated, and affected by viral pathogenesis. For example, monocyte dysfunction due to aging and respiratory and gut dysbiosis influence the host's immunity against SARS-CoV-2 including helper T-cell imbalance and viral clearance reduction, leading to accelerated disease progression in older patients or those with underlying diseases. The different immune responses against SARS-CoV-2 also contribute to various radiological findings, including that of acute respiratory distress syndrome, which is associated with high mortality, especially in patients susceptible to disease progression. We aimed to review the pathophysiological mechanisms involved in COVID-19, with emphasis on the altered microbiome in the lung and gut, and the different radiological findings in different patient groups, such as younger adults and pregnant women.
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30
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Panther EJ, Dodd W, Clark A, Lucke-Wold B. Gastrointestinal Microbiome and Neurologic Injury. Biomedicines 2022; 10:biomedicines10020500. [PMID: 35203709 PMCID: PMC8962360 DOI: 10.3390/biomedicines10020500] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023] Open
Abstract
Communication between the enteric nervous system (ENS) of the gastrointestinal (GI) tract and the central nervous system (CNS) is vital for maintaining systemic homeostasis. Intrinsic and extrinsic neurological inputs of the gut regulate blood flow, peristalsis, hormone release, and immunological function. The health of the gut microbiome plays a vital role in regulating the overall function and well-being of the individual. Microbes release short-chain fatty acids (SCFAs) that regulate G-protein-coupled receptors to mediate hormone release, neurotransmitter release (i.e., serotonin, dopamine, noradrenaline, γ-aminobutyric acid (GABA), acetylcholine, and histamine), and regulate inflammation and mood. Further gaseous factors (i.e., nitric oxide) are important in regulating inflammation and have a response in injury. Neurologic injuries such as ischemic stroke, spinal cord injury, traumatic brain injury, and hemorrhagic cerebrovascular lesions can all lead to gut dysbiosis. Additionally, unfavorable alterations in the composition of the microbiota may be associated with increased risk for these neurologic injuries due to increased proinflammatory molecules and clotting factors. Interventions such as probiotics, fecal microbiota transplantation, and oral SCFAs have been shown to stabilize and improve the composition of the microbiome. However, the effect this has on neurologic injury prevention and recovery has not been studied extensively. The purpose of this review is to elaborate on the complex relationship between the nervous system and the microbiome and to report how neurologic injury modulates the status of the microbiome. Finally, we will propose various interventions that may be beneficial in the recovery from neurologic injury.
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Affiliation(s)
- Eric J. Panther
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA;
- Correspondence:
| | - William Dodd
- College of Medicine, University of Central Florida, Orlando, FL 32816, USA; (W.D.); (A.C.)
| | - Alec Clark
- College of Medicine, University of Central Florida, Orlando, FL 32816, USA; (W.D.); (A.C.)
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, FL 32601, USA;
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