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Han Y, Xu H, Tao S, Zhu Y, Wei ZZ, Zhao Y, Zhang Y. Bifico Ameliorates Neurological Deficits After Ischemic Stroke in Mice: Transcriptome Profiling. In Vivo 2024; 38:699-709. [PMID: 38418134 PMCID: PMC10905441 DOI: 10.21873/invivo.13491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/17/2023] [Accepted: 09/25/2023] [Indexed: 03/01/2024]
Abstract
BACKGROUND/AIM Evidence suggests that gut microbiota can affect various neurological diseases, including stroke. Stroke patients have an increase in harmful gut bacteria and a decrease in beneficial bacteria. This increases intestinal permeability, increases the risk of infection, and even affects many inflammatory factors. While probiotics may affect stroke prognosis by improving the gut environment. This study aimed to investigate the effect of probiotic Bifico on the neural function in mice after focal cerebral ischemia and explore its mechanisms of action. MATERIALS AND METHODS A focal cerebral ischemia model was established in mice. Four weeks before modeling, animals were divided into three groups: Stroke plus Vehicle group, Stroke plus Pre-Bifico group and Bifico group. The infarct volume and neurobehaviors were evaluated. Whole-gene expression profiling was performed at different days after treatment (D1, D7, D14, D28) by RNA-seq. Differentially expressed genes (DEGs) were the processed for Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG). Some inflammation and immune related genes were screened and their expression was analyzed. RESULTS Compared to the Stroke plus Vehicle group and Bifico group, the infarct volume and neurological score were significantly reduced in the Pre-Bifico group. There were 2 DEGs at D1, 193 DEGs at D7, 70 DEGs at D28 between Stroke plus Pre-Bifico group and Stroke plus Vehicle group. For GO analysis, there were 139 significant terms at D7 and 195 at D28. For KEGG, there were 2 significant pathways at D7 and 9 at D28. Among 87 genes related to inflammation and immunity, 6 DEGs were identified. The expression of CCL9 was significantly elevated at most time points after stroke compared to the Stroke plus Vehicle group, while that of CCL6, CXCL10, CD48, CD72 and CLEC7A was highly expressed only in the recovery stage of stroke. CONCLUSION Oral pre-treatment with Bifico for 28 days can reduce cerebral infarction and promote recovery of neurological function in stroke mice, which may be ascribed to the regulation of immunity and inflammation in the brain.
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Affiliation(s)
- Yanfei Han
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Huizhen Xu
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Shaoxin Tao
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Yanbing Zhu
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Zheng Z Wei
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Yingying Zhao
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
| | - Yongbo Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, P.R. China
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Li G, Zhang B, Zhang M, Liu Q, Luo J, Liao Q, Tan M, Bai Z, Xu J, Sun J, Chen M. A non-invasive real-time monitoring system for cytotoxic brain edema in post ischemic stroke based on near-field coupling. Technol Health Care 2021; 29:963-978. [PMID: 33427707 DOI: 10.3233/thc-202685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND As a common secondary pathophysiological process in postischemic stroke (IS), cytotoxic brain edema (CBE) is an independent factor leading to poor prognosis of patients. Near-field coupling (NFC) technology has some advantages such as non-invasive, non-contact, and unimpeded penetration of the skull. In theory, it can reflect the difference between normal and edema tissues through the near-field coupling phase shift (NFCPS) in the electromagnetic wave transmission trait. METHODS Combining NFC detection principle and computer programming, we established a high-performance real-time monitoring system with functions such as automatic setting of measurement parameters, data acquisition, real-time filtering and dynamic waveform display. To investigate the feasibility of this system to detect CBE, a saline simulation experiment and a 24-hour real-time monitoring experiment after middle cerebral artery occlusion (MCAO) in rats were carried out. RESULTS The results of the saline simulation experiment showed that the change of NFCPS was proportional to the increase of the simulated edema solution, and the variation range of NFCPS was more than 9∘ after 5 ml injection. In the 24-hour monitoring after MCAO, the NFCPS of the experimental group showed an overall downward trend over time an average change of -17.7868 ± 1.6325∘ and the change rate gradually decreased. The 24-hour NFCPS in the control group fluctuates slightly around the initial value, which has no obvious upward or downward trend. CONCLUSION The intragroup and intergroup difference statistical analysis shows that NFCPS can effectively distinguish different intracranial pathophysiological states after IS. This work provides sufficient evidence and a technical basis for using NFCPS to monitor CBE in the future.
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Affiliation(s)
- Gen Li
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Bo Zhang
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Maoting Zhang
- College of Biomedical Engineering, Army Medical University, Chongqing, China
| | - Qi Liu
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Jie Luo
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Qi Liao
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Mei Tan
- Department of Biomedical Engineering, Chongqing University of Technology, Chongqing, China
| | - Zelin Bai
- College of Biomedical Engineering, Army Medical University, Chongqing, China
| | - Jia Xu
- College of Biomedical Engineering, Army Medical University, Chongqing, China
| | - Jian Sun
- College of Biomedical Engineering, Army Medical University, Chongqing, China
| | - Mingsheng Chen
- College of Biomedical Engineering, Army Medical University, Chongqing, China
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Yeh CF, Chuang TY, Lan MY, Chin YC, Wang WH, Lin YY. Excessive Expression of Microglia/Macrophage and Proinflammatory Mediators in Olfactory Bulb and Olfactory Dysfunction After Stroke. In Vivo 2020; 33:1893-1899. [PMID: 31662517 DOI: 10.21873/invivo.11683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/05/2019] [Accepted: 08/07/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND/AIM Olfactory dysfunction can be caused by stroke but the pathogenesis is still unclear. Previous studies have proved that olfactory dysfunction could be caused by microglia activation in the olfactory bulb and that middle cerebral artery occlusion (MCAO) may induce ipsilateral olfactory bulb microglia activation. This study aimed to explore the possible pathogenesis of ischemic stroke-induced olfactory dysfunction. MATERIALS AND METHODS We used a rat model of MCAO to simulate ischemic stroke. Olfactory function tests were performed using buried food test. The mRNA expression of olfactory marker protein (OMP), microglia/macrophage activation, and proinflammatory mediators were measured using reverse transcription-quantitative polymerase chain reaction. RESULTS Following MCAO, rats had poorer olfactory performance. In the olfactory bulb of the rats, the mRNA expression of OMP decreased and the mRNA expression of microglia/macrophage activation and proinflammatory mediators increased. CONCLUSION Ischemic stroke causes microglia/macrophage activation and promotes neuroinflammation in the olfactory bulb, causing olfactory dysfunction.
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Affiliation(s)
- Chien-Fu Yeh
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.,Department of Otorhinolaryngology, National Yang-Ming University, Taipei, Taiwan, R.O.C.,Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Tung-Yueh Chuang
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C
| | - Ming-Ying Lan
- Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.,Department of Otorhinolaryngology, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Yu-Ching Chin
- Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C
| | - Wei-Hsin Wang
- Department of Neurosurgery, Taipei Veterans General Hospital, School of Medicine, National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Yung-Yang Lin
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan, R.O.C. .,Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.,Institute of Physiology, National Yang-Ming University, Taipei, Taiwan, R.O.C.,Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, R.O.C.,Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C
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Yeh CF, Chuang TY, Hung YW, Lan MY, Tsai CH, Huang HX, Lin YY. Soluble epoxide hydrolase inhibition enhances anti-inflammatory and antioxidative processes, modulates microglia polarization, and promotes recovery after ischemic stroke. Neuropsychiatr Dis Treat 2019; 15:2927-2941. [PMID: 31686827 PMCID: PMC6800549 DOI: 10.2147/ndt.s210403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/04/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Ischemic stroke triggers inflammatory responses and oxidative stress in the brain, and microglia polarization affects the degree of neuroinflammation. It has been reported that the inhibition of soluble epoxide hydrolase (sEH) activity protects brain tissue. However, the anti-inflammatory and antioxidative effects of sEH inhibition in the ischemic brain are not fully understood. This study aimed to investigate the effects of a selective sEH inhibitor, 12-(3-adamantan-1-yl-ureido)-dodecanoic acid (AUDA), after ischemic stroke. METHODS Adult male rats with middle cerebral artery occlusion (MCAO) were administered with AUDA or a vehicle. Behavioral outcome, infarct volume, microglia polarization, and gene expression were assessed. RESULTS Rats treated with AUDA showed better behavioral outcomes and smaller infarct volumes after MCAO. After AUDA treatment, a reduction of M1 microglia and an increase of M2 microglia occurred at the ischemic cortex of rats. Additionally, there was an increase in the mRNA expressions of antioxidant enzymes and anti-inflammatory interleukin-10, and pro-inflammatory mediators were decreased after AUDA administration. Heme oxygenase-1 was mainly expressed by neurons, and AUDA was found to improve the survival of neurons. CONCLUSION The results of this study provided novel and significant insights into how AUDA can improve outcomes and modulate inflammation and oxidative stress after ischemic stroke.
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Affiliation(s)
- Chien-Fu Yeh
- Institute of Brain Science, National Yang-Ming University, Taipei 11221, Taiwan.,Department of Otorhinolaryngology, National Yang-Ming University, Taipei 11221, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Tung-Yueh Chuang
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yu-Wen Hung
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Ming-Ying Lan
- Department of Otorhinolaryngology, National Yang-Ming University, Taipei 11221, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Ching-Han Tsai
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Hao-Xiang Huang
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yung-Yang Lin
- Institute of Brain Science, National Yang-Ming University, Taipei 11221, Taiwan.,Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan.,Institute of Physiology, National Yang-Ming University, Taipei 11221, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.,Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei 11217, Taiwan
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