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Weber RZ, Bernardoni D, Rentsch NH, Buil BA, Halliday S, Augath MA, Razansky D, Tackenberg C, Rust R. A toolkit for stroke infarct volume estimation in rodents. Neuroimage 2024; 287:120518. [PMID: 38219841 DOI: 10.1016/j.neuroimage.2024.120518] [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: 10/09/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024] Open
Abstract
Stroke volume is a key determinant of infarct severity and an important metric for evaluating treatments. However, accurate estimation of stroke volume can be challenging, due to the often confined 2-dimensional nature of available data. Here, we introduce a comprehensive semi-automated toolkit to reliably estimate stroke volumes based on (1) whole brains ex-vivo magnetic resonance imaging (MRI) and (2) brain sections that underwent immunofluorescence staining. We located and quantified infarct areas from MRI three days (acute) and 28 days (chronic) after photothrombotic stroke induction in whole mouse brains. MRI results were compared with measures obtained from immunofluorescent histologic sections of the same brains. We found that infarct volume determined by post-mortem MRI was highly correlated with a deviation of only 6.6 % (acute) and 4.9 % (chronic) to the measurements as determined in the histological brain sections indicating that both methods are capable of accurately assessing brain tissue damage (Pearson r > 0.9, p < 0.001). The Dice similarity coefficient (DC) showed a high degree of coherence (DC > 0.8) between MRI-delineated regions of interest (ROIs) and ROIs obtained from histologic sections at four to six pre-defined landmarks, with histology-based delineation demonstrating higher inter-operator similarity compared to MR images. We further investigated stroke-related scarring and post-ischemic angiogenesis in cortical peri‑infarct regions and described a negative correlation between GFAP+fluorescence intensity and MRI-obtained lesion size.
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Affiliation(s)
- Rebecca Z Weber
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Davide Bernardoni
- Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Nora H Rentsch
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Beatriz Achón Buil
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Stefanie Halliday
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland
| | - Mark-Aurel Augath
- Institute for Biomedical Engineering and Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Zurich, Zurich 8052, Switzerland; Institute for Biomedical Engineering, Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich 8093, Switzerland
| | - Daniel Razansky
- Institute for Biomedical Engineering and Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Zurich, Zurich 8052, Switzerland; Institute for Biomedical Engineering, Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich 8093, Switzerland
| | - Christian Tackenberg
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Ruslan Rust
- Institute for Regenerative Medicine, University of Zurich, Schlieren 8952, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland; Department of Physiology and Neuroscience, University of Southern California, Los Angeles, CA 90089, United States; Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, 1501 San Pablo St., Los Angeles, CA 900893, United States.
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2
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Zhu Y, Song G. Molecular origin and biological effects of exercise mimetics. J Exerc Sci Fit 2024; 22:73-85. [PMID: 38187084 PMCID: PMC10770624 DOI: 10.1016/j.jesf.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024] Open
Abstract
With the rapid development of sports science and molecular biology technology, academia refers to molecules or microorganisms that mimic or enhance the beneficial effects of exercise on the body, called "exercise mimetics." This review aims to clarify the concept and development history of exercise mimetics, and to define the concept of exercise mimetics by summarizing its characteristics and functions. Candidate molecules and drug targets for exercise mimetics are summarized, and the relationship between exercise mimetics and exercise is explained, as well as the targeting system and function of exercise mimetics. The main targeting systems for exercise mimetics are the exercise system, circulatory system, endocrine system, endocrine system, and nervous system, while the immune system is potential targeting systems. Finally, future research directions for exercise mimetics are discussed.
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Affiliation(s)
- Yuping Zhu
- Key Lab of Physical Fitness Evaluation and Motor Function Monitoring, College of Physical Education, Southwest University, Chongqing, 400715, China
| | - Gang Song
- Key Lab of Physical Fitness Evaluation and Motor Function Monitoring, College of Physical Education, Southwest University, Chongqing, 400715, China
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3
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Alvarez MM, Salazar FE, Rodriguez T, D’Egidio F, Borlongan CV, Lee JY. Endogenous Extracellular Vesicles Participate in Brain Remodeling after Ischemic Stroke. Int J Mol Sci 2023; 24:16857. [PMID: 38069179 PMCID: PMC10706116 DOI: 10.3390/ijms242316857] [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: 10/27/2023] [Revised: 11/21/2023] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
Brain remodeling after an ischemic stroke represents a promising avenue for exploring the cellular mechanisms of endogenous brain repair. A deeper understanding of these mechanisms is crucial for optimizing the safety and efficacy of neuroprotective treatments for stroke patients. Here, we interrogated the role of extracellular vesicles, particularly exosomes, as potential mediators of endogenous repair within the neurovascular unit (NVU). We hypothesized that these extracellular vesicles may play a role in achieving transient stroke neuroprotection. Using the established ischemic stroke model of middle cerebral artery occlusion in adult rats, we detected a surged in the extracellular vesicle marker CD63 in the peri-infarct area that either juxtaposed or co-localized with GFAP-positive glial cells, MAP2-labeled young neurons, and VEGF-marked angiogenic cells. This novel observation that CD63 exosomes spatially and temporally approximated glial activation, neurogenesis, and angiogenesis suggests that extracellular vesicles, especially exosomes, contribute to the endogenous repair of the NVU, warranting exploration of extracellular vesicle-based stroke therapeutics.
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Affiliation(s)
| | | | | | | | - Cesar V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, USA; (M.M.A.); (F.E.S.); (T.R.); (F.D.); (J.-Y.L.)
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4
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Geiseler SJ, Phan KD, Brox C, Nguyen TD, Tartanoglu C, Doosje HL, Christiansen CL, Liesz A, Morland C. Pre-stroke exercise does not reduce atrophy in healthy young adult mice. Neurosci Lett 2023; 814:137447. [PMID: 37604388 DOI: 10.1016/j.neulet.2023.137447] [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: 05/05/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023]
Abstract
Stroke is the main cause of acquired disability in adults. Exercise reduces the risk for stroke and protects against functional loss after stroke. An exercise-induced reduction in key risk factors probably contributes to the protective effect, but direct effects on the brain may also contribute to stroke protection. We previously reported that exercise increases angiogenesis and neurogenesis through activation of the lactate receptor HCA1. Here we exposed young adult wild-type mice and HCA1 knockout mice to interval exercise at high or medium intensity, or to intraperitoneal injections of L-lactate or saline for seven weeks before we induced experimental stroke by permanent occlusion of the distal medial cerebral artery (dMCA). The resulting cortical atrophy measured three weeks after stroke was unaffected by exercise or L-lactate pre-treatments, and independent of HCA1 activation. Our results suggest that the beneficial effect of exercise prior to stroke where no reperfusion occurs is limited in individuals who do not carry risk factors.
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Affiliation(s)
- Samuel J Geiseler
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.
| | - Kimberly D Phan
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Camilla Brox
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Teresa D Nguyen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Can Tartanoglu
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Hanne-Lise Doosje
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway; Institute for Life Science and Technology, Hanzehogeschool, Groningen, the Netherlands
| | - Cathrine L Christiansen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Artur Liesz
- Institute for Stroke and Dementia Research, Ludwig-Maximilians University Munich, Munich, Germany; Munich Cluster for Systems Neurology SyNergy, Munich, Germany
| | - Cecilie Morland
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.
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Zeng Y, Hao L, Chen Y, Liu S, Fan Y, Zhao Z, Wang Y, Chen Q, Li Y. Optimizing intra-arterial hypothermia scheme for acute ischemic stroke in an MCAO/R rat model. Sci Rep 2023; 13:9566. [PMID: 37311853 DOI: 10.1038/s41598-023-35824-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 05/24/2023] [Indexed: 06/15/2023] Open
Abstract
Hypothermia is a promising neuroprotective treatment. This study aims to explore and optimize the intervention scheme of intra-arterial hypothermia (IAH) in a middle cerebral artery occlusion and reperfusion (MCAO/R) rat model. The MCAO/R model was established with a thread that could be retracted 2 h after occlusion. Cold normal saline was injected into the internal carotid artery (ICA) through a microcatheter in different infusion conditions. Grouping followed an orthogonal design (L9[34]) based on three critical factors closely associated with IAH: perfusate temperature (4, 10, 15 °C), infusion flow rate (1/3, 1/2, 2/3 blood flow rate of ICA), and duration (10, 20, 30 min), resulting in 9 subgroups (H1, H2 to H9). A myriad of indexes were monitored, such as vital signs, blood parameters, changes in local ischemic brain tissue temperature (Tb), ipsilateral jugular venous bulb temperature (Tjvb), and the core temperature of the anus (Tcore). After 24 h and 72 h of cerebral ischemia, cerebral infarction volume, cerebral water content, and neurological function were assessed to explore the optimal IAH conditions. The results revealed that the three critical factors were independent predictors for cerebral infarction volume, cerebral water content, and neurological function. The optimal perfusion conditions were 4 °C, 2/3 RICA (0.50 ml/min) for 20 min, and there was a significant correlation between Tb and Tjvb (R = 0.994, P < 0.001). The vital signs, blood routine tests and biochemical indexes showed no significant abnormal changes. These findings revealed that IAH was safe and feasible with the optimized scheme in an MCAO/R rat model.
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Affiliation(s)
- Yuqi Zeng
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Lei Hao
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, Quanshan District, Xuzhou, 221006, Jiangsu Province, China
| | - Yue Chen
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Shuyi Liu
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Yong Fan
- Central Laboratory, Affiliated Fuzhou First Hospital of Fujian Medical University, Fuzhou, 350001, China
| | - Zhenhua Zhao
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Yinzhou Wang
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Fujian Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China.
| | - Qi Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University, Fuzhou, 350000, China.
| | - Yongkun Li
- Department of Neurology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Fujian Provincial Key Laboratory of Emergency Medicine, Department of Emergency, Fujian Provincial Hospital, Fuzhou, 350001, China.
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Picciolini S, Mangolini V, Rodà F, Montesano A, Arnaboldi F, Liuzzi P, Mannini A, Bedoni M, Gualerzi A. Multiplexing Biosensor for the Detection of Extracellular Vesicles as Biomarkers of Tissue Damage and Recovery after Ischemic Stroke. Int J Mol Sci 2023; 24:ijms24097937. [PMID: 37175644 PMCID: PMC10177901 DOI: 10.3390/ijms24097937] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/19/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The inflammatory, reparative and regenerative mechanisms activated in ischemic stroke patients immediately after the event cooperate in the response to injury, in the restoration of functions and in brain remodeling even weeks after the event and can be sustained by the rehabilitation treatment. Nonetheless, patients' response to treatments is difficult to predict because of the lack of specific measurable markers of recovery, which could be complementary to clinical scales in the evaluation of patients. Considering that Extracellular Vesicles (EVs) are carriers of multiple molecules involved in the response to stroke injury, in the present study, we have identified a panel of EV-associated molecules that (i) confirm the crucial involvement of EVs in the processes that follow ischemic stroke, (ii) could possibly profile ischemic stroke patients at the beginning of the rehabilitation program, (iii) could be used in predicting patients' response to treatment. By means of a multiplexing Surface Plasmon Resonance imaging biosensor, subacute ischemic stroke patients were proven to have increased expression of vascular endothelial growth factor receptor 2 (VEGFR2) and translocator protein (TSPO) on the surface of small EVs in blood. Besides, microglia EVs and endothelial EVs were shown to be significantly involved in the intercellular communications that occur more than 10 days after ischemic stroke, thus being potential tools for the profiling of patients in the subacute phase after ischemic stroke and in the prediction of their recovery.
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Affiliation(s)
| | - Valentina Mangolini
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 20148 Milano, Italy
- Dipartimento di Medicina Molecolare e Traslazionale, Università degli Studi di Brescia, 25122 Brescia, Italy
| | - Francesca Rodà
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 20148 Milano, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, 42100 Modena, Italy
| | | | - Francesca Arnaboldi
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, 20133 Milano, Italy
| | - Piergiuseppe Liuzzi
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 50143 Firenze, Italy
- Scuola Superiore Sant'Anna, Istituto di BioRobotica, 56025 Pontedera, Italy
| | - Andrea Mannini
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 50143 Firenze, Italy
| | - Marzia Bedoni
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 20148 Milano, Italy
| | - Alice Gualerzi
- IRCCS Fondazione Don Carlo Gnocchi ONLUS, 20148 Milano, Italy
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7
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Yabuno S, Yasuhara T, Nagase T, Kawauchi S, Sugahara C, Okazaki Y, Hosomoto K, Sasada S, Sasaki T, Tajiri N, Borlongan CV, Date I. Synergistic therapeutic effects of intracerebral transplantation of human modified bone marrow-derived stromal cells (SB623) and voluntary exercise with running wheel in a rat model of ischemic stroke. Stem Cell Res Ther 2023; 14:10. [PMID: 36691091 PMCID: PMC9872315 DOI: 10.1186/s13287-023-03236-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Mesenchymal stromal cell (MSC) transplantation therapy is a promising therapy for stroke patients. In parallel, rehabilitation with physical exercise could ameliorate stroke-induced neurological impairment. In this study, we aimed to clarify whether combination therapy of intracerebral transplantation of human modified bone marrow-derived MSCs, SB623 cells, and voluntary exercise with running wheel (RW) could exert synergistic therapeutic effects on a rat model of ischemic stroke. METHODS Wistar rats received right transient middle cerebral artery occlusion (MCAO). Voluntary exercise (Ex) groups were trained in a cage with RW from day 7 before MCAO. SB623 cells (4.0 × 105 cells/5 μl) were stereotactically injected into the right striatum at day 1 after MCAO. Behavioral tests were performed at day 1, 7, and 14 after MCAO using the modified Neurological Severity Score (mNSS) and cylinder test. Rats were euthanized at day 15 after MCAO for mRNA level evaluation of ischemic infarct area, endogenous neurogenesis, angiogenesis, and expression of brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF). The rats were randomly assigned to one of the four groups: vehicle, Ex, SB623, and SB623 + Ex groups. RESULTS SB623 + Ex group achieved significant neurological recovery in mNSS compared to the vehicle group (p < 0.05). The cerebral infarct area of SB623 + Ex group was significantly decreased compared to those in all other groups (p < 0.05). The number of BrdU/Doublecortin (Dcx) double-positive cells in the subventricular zone (SVZ) and the dentate gyrus (DG), the laminin-positive area in the ischemic boundary zone (IBZ), and the mRNA level of BDNF and VEGF in SB623 + Ex group were significantly increased compared to those in all other groups (p < 0.05). CONCLUSIONS This study suggests that combination therapy of intracerebral transplantation SB623 cells and voluntary exercise with RW achieves robust neurological recovery and synergistically promotes endogenous neurogenesis and angiogenesis after cerebral ischemia, possibly through a mechanism involving the up-regulation of BDNF and VEGF.
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Affiliation(s)
- Satoru Yabuno
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Takayuki Nagase
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Satoshi Kawauchi
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Chiaki Sugahara
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Yosuke Okazaki
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Kakeru Hosomoto
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Susumu Sasada
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Tatsuya Sasaki
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Naoki Tajiri
- Department of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
| | - Cesar V. Borlongan
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL USA
| | - Isao Date
- Department of Neurological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
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8
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Xu G, Hao F, Zhao W, Qiu J, Zhao P, Zhang Q. The influential factors and non-pharmacological interventions of cognitive impairment in children with ischemic stroke. Front Neurol 2022; 13:1072388. [PMID: 36588886 PMCID: PMC9797836 DOI: 10.3389/fneur.2022.1072388] [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: 10/17/2022] [Accepted: 11/23/2022] [Indexed: 12/23/2022] Open
Abstract
Background The prevalence of pediatric ischemic stroke rose by 35% between 1990 and 2013. Affected patients can experience the gradual onset of cognitive impairment in the form of impaired language, memory, intelligence, attention, and processing speed, which affect 20-50% of these patients. Only few evidence-based treatments are available due to significant heterogeneity in age, pathological characteristics, and the combined epilepsy status of the affected children. Methods We searched the literature published by Web of Science, Scopus, and PubMed, which researched non-pharmacological rehabilitation interventions for cognitive impairment following pediatric ischemic stroke. The search period is from the establishment of the database to January 2022. Results The incidence of such impairment is influenced by patient age, pathological characteristics, combined epilepsy status, and environmental factors. Non-pharmacological treatments for cognitive impairment that have been explored to date mainly include exercise training, psychological intervention, neuromodulation strategies, computer-assisted cognitive training, brain-computer interfaces (BCI), virtual reality, music therapy, and acupuncture. In childhood stroke, the only interventions that can be retrieved are psychological intervention and neuromodulation strategies. Conclusion However, evidence regarding the efficacy of these interventions is relatively weak. In future studies, the active application of a variety of interventions to improve pediatric cognitive function will be necessary, and neuroimaging and electrophysiological measurement techniques will be of great value in this context. Larger multi-center prospective longitudinal studies are also required to offer more accurate evidence-based guidance for the treatment of patients with pediatric stroke.
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Affiliation(s)
- Gang Xu
- Rehabilitation Branch, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, China
| | - Fuchun Hao
- Medicine & Nursing Faculty, Tianjin Medical College, Tianjin, China
| | - Weiwei Zhao
- Chinese Teaching and Research Section, Tianjin Beichen Experimental Middle School, Tianjin, China
| | - Jiwen Qiu
- Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin, China,School of Medical Technology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Peng Zhao
- Rehabilitation Branch, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, China,*Correspondence: Peng Zhao
| | - Qian Zhang
- Child Health Care Department, Tianjin Beichen Women and Children Health Center, Tianjin, China,Qian Zhang
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9
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Zhou L, Wang J, Huang J, Song X, Wu Y, Chen X, Tan Y, Yang Q. The role of mesenchymal stem cell transplantation for ischemic stroke and recent research developments. Front Neurol 2022; 13:1000777. [PMID: 36468067 PMCID: PMC9708730 DOI: 10.3389/fneur.2022.1000777] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/03/2022] [Indexed: 09/08/2023] Open
Abstract
Ischemic stroke is a common cerebrovascular disease that seriously affects human health. However, most patients do not practice self-care and cannot rely on the current clinical treatment for guaranteed functional recovery. Stem cell transplantation is an emerging treatment studied in various central nervous system diseases. More importantly, animal studies show that transplantation of mesenchymal stem cells (MSCs) can alleviate neurological deficits and bring hope to patients suffering from ischemic stroke. This paper reviews the biological characteristics of MSCs and discusses the mechanism and progression of MSC transplantation to provide new therapeutic directions for ischemic stroke.
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Affiliation(s)
| | | | | | | | | | | | | | - Qin Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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10
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Gordon J, Lockard G, Monsour M, Alayli A, Choudhary H, Borlongan CV. Sequestration of Inflammation in Parkinson's Disease via Stem Cell Therapy. Int J Mol Sci 2022; 23:ijms231710138. [PMID: 36077534 PMCID: PMC9456021 DOI: 10.3390/ijms231710138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 12/02/2022] Open
Abstract
Parkinson’s disease is the second most common neurodegenerative disease. Insidious and progressive, this disorder is secondary to the gradual loss of dopaminergic signaling and worsening neuroinflammation, affecting patients’ motor capabilities. Gold standard treatment includes exogenous dopamine therapy in the form of levodopa–carbidopa, or surgical intervention with a deep brain stimulator to the subcortical basal ganglia. Unfortunately, these therapies may ironically exacerbate the already pro-inflammatory environment. An alternative approach may involve cell-based therapies. Cell-based therapies, whether endogenous or exogenous, often have anti-inflammatory properties. Alternative strategies, such as exercise and diet modifications, also appear to play a significant role in facilitating endogenous and exogenous stem cells to induce an anti-inflammatory response, and thus are of unique interest to neuroinflammatory conditions including Parkinson’s disease. Treating patients with current gold standard therapeutics and adding adjuvant stem cell therapy, alongside the aforementioned lifestyle modifications, may ideally sequester inflammation and thus halt neurodegeneration.
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Affiliation(s)
- Jonah Gordon
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | - Gavin Lockard
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | - Molly Monsour
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | - Adam Alayli
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | - Hassan Choudhary
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | - Cesario V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Correspondence:
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11
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Qiu X, Zhou J, Xu Y, Liao L, Yang H, Xiang Y, Zhou Z, Sun Q, Chen M, Zhang J, Wu W, Zhu L, You B, He L, Luo Y, Li Z, Li C, Bai Y. Prophylactic exercise-derived circulating exosomal miR-125a-5p promotes endogenous revascularization after hindlimb ischemia by targeting endothelin converting enzyme 1. Front Cardiovasc Med 2022; 9:881526. [PMID: 35935623 PMCID: PMC9354753 DOI: 10.3389/fcvm.2022.881526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/29/2022] [Indexed: 11/23/2022] Open
Abstract
Background Prophylactic exercise improves clinical outcomes in patients experiencing severe ischemic diseases. Previous studies have shown that exercise could alter the amount or content of circulating exosomes. However, little is known about the role of precursory exercise-derived circulating exosomes (Exe-Exo) in ischemic diseases. We therefore aimed to explore the function and mechanism of Exe-Exo in endogenous revascularization and perfusion recovery in peripheral arterial disease. Methods and Results We first determined that 4 weeks of precursory treadmill exercise improved perfusion recovery on days 7, 14 and 21 after unilateral femoral artery ligation (FAL) but had no effect immediately after ligation. Then, local muscle delivery of Exe-Exo promotes arteriogenesis, angiogenesis and perfusion recovery, which could be abolished by GW4869, a well-recognized pharmacological agent inhibiting exosome release. This suggests that Exe-Exo mediated exercise-induced revascularization. In vitro, Exe-Exo enhanced endothelial cell proliferation, migration and tube formation. In addition, we identified miR-125a-5p as a novel exerkine through exosomal miRNA sequencing and RT-qPCR validation. Inhibition of miR-125a-5p abrogated the beneficial effects of Exe-Exo both in vivo and in vitro. Mechanistically, these exercise-afforded benefits were attributed to the exosomal miR-125a-5p downregulation of ECE1 expression and the subsequent activation of the AKT/eNOS downstream signaling pathway. Specifically, skeletal muscle may be a major tissue source of exercise-induced exosomal miR-125a-5p via fluorescence in situ hybridization. Conclusions Endogenous circulating exosomal miR-125a-5p promotes exercise-induced revascularization via targeting ECE1 and activating AKT/eNOS downstream signaling pathway. Identify exosomal miR-125a-5p as a novel exerkine, and highlight its potential therapeutic role in the prevention and treatment of peripheral arterial disease.
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Affiliation(s)
- Xueting Qiu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Jipeng Zhou
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yanying Xu
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Longsheng Liao
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Huijun Yang
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yuan Xiang
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zhengshi Zhou
- Department of Laboratory Animal, Xiangya School of Medicine, Central South University, Changsha, China
| | - Quan Sun
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Minghong Chen
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Jiaxiong Zhang
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Wanzhou Wu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Lingping Zhu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Baiyang You
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Lingfang He
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ying Luo
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zhenyu Li
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Chuanchang Li
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Chuanchang Li,
| | - Yongping Bai
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Yongping Bai,
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12
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Brait VH, Jackman KA, Pang TY. Effects of wheel-running on anxiety and depression-relevant behaviours in the MCAO mouse model of stroke: moderation of brain-derived neurotrophic factor and serotonin receptor gene expression. Behav Brain Res 2022; 432:113983. [PMID: 35777551 DOI: 10.1016/j.bbr.2022.113983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 06/06/2022] [Accepted: 06/27/2022] [Indexed: 11/02/2022]
Abstract
Stroke continues to be a major cause of mortality globally. Post-stroke treatment is complicated by the heterogenous nature of pathology and the emergence of secondary psychological symptoms are an additional challenge to the recovery process. Poststroke depression (PSD) is a common co-morbidity and is a major impediment to recovery. While selective serotonin reuptake inhibitors (SSRIs) have proven to be clinically efficacious in treating PSD, the pathogenic processes that underlie the manifestation of depressive mood post-stroke remains unclear. Furthermore, the use of SSRIs is associated with risks of intracerebral haemorrhage, so alternative treatment options need to be continuously explored. Exercise has been demonstrated to be beneficial for improving mood in humans and preclinical models of neurological conditions. Little is known of the mood-related benefits of physical exercise post-stroke. Using the middle cerebral artery occlusion (MCAO) mouse model of cerebral ischaemia, we investigated whether behavioural deficits emerge post-MCAO and could be rescued by voluntary wheel-running. We report that MCAO induced hypo-locomotion and anhedonia-related behaviours, with some improvements conferred by wheel-running. Serotonin transporter gene expression was increased in the MCAO hippocampus and frontal cortex, but this increase remained despite wheel-running. Wheel-running associated up-regulation of BDNF gene expression was unaffected in MCAO mice, reflecting conservation of key neuroplasticity molecular pathways. Taken together, our results highlight the need for further research into serotonergic modulation of the affective symptoms of stroke.
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Affiliation(s)
- Vanessa H Brait
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia
| | - Katherine A Jackman
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia
| | - Terence Y Pang
- The Florey Institute of Neuroscience and Mental Health, Parkville, VIC 3052, Australia; Department of Anatomy and Physiology, University of Melbourne, VIC 3010, Australia.
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13
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Ferrer-Uris B, Ramos MA, Busquets A, Angulo-Barroso R. Can exercise shape your brain? A review of aerobic exercise effects on cognitive function and neuro-physiological underpinning mechanisms. AIMS Neurosci 2022; 9:150-174. [PMID: 35860684 PMCID: PMC9256523 DOI: 10.3934/neuroscience.2022009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 03/11/2022] [Accepted: 03/22/2022] [Indexed: 11/18/2022] Open
Abstract
It is widely accepted that physical exercise can be used as a tool for the prevention and treatment of various diseases or disorders. In addition, in the recent years, exercise has also been successfully used to enhance people's cognition. There is a large amount of research that has supported the benefits of physical exercise on human cognition, both in children and adults. Among these studies, some have focused on the acute or transitory effects of exercise on cognition, while others have focused on the effects of regular physical exercise. However, the relation between exercise and cognition is complex and we still have limited knowledge about the moderators and mechanisms underlying this relation. Most of human studies have focused on the behavioral aspects of exercise-effects on cognition, while animal studies have deepened in its possible neuro-physiological mechanisms. Even so, thanks to advances in neuroimaging techniques, there is a growing body of evidence that provides valuable information regarding these mechanisms in the human population. This review aims to analyze the effects of regular and acute aerobic exercise on cognition. The exercise-cognition relationship will be reviewed both from the behavioral perspective and from the neurophysiological mechanisms. The effects of exercise on animals, adult humans, and infant humans will be analyzed separately. Finally, physical exercise intervention programs aiming to increase cognitive performance in scholar and workplace environments will be reviewed.
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Affiliation(s)
- Blai Ferrer-Uris
- Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain
| | - Maria Angeles Ramos
- Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain
| | - Albert Busquets
- Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain
| | - Rosa Angulo-Barroso
- Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain
- Department of Kinesiology, California State University, Northridge, CA, United States
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14
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Zhang H, Xie Q, Hu J. Neuroprotective Effect of Physical Activity in Ischemic Stroke: Focus on the Neurovascular Unit. Front Cell Neurosci 2022; 16:860573. [PMID: 35317197 PMCID: PMC8934401 DOI: 10.3389/fncel.2022.860573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 02/08/2022] [Indexed: 01/03/2023] Open
Abstract
Cerebral ischemia is one of the major diseases associated with death or disability among patients. To date, there is a lack of effective treatments, with the exception of thrombolytic therapy that can be administered during the acute phase of ischemic stroke. Cerebral ischemia can cause a variety of pathological changes, including microvascular basal membrane matrix, endothelial cell activation, and astrocyte adhesion, which may affect signal transduction between the microvessels and neurons. Therefore, researchers put forward the concept of neurovascular unit, including neurons, axons, astrocytes, microvasculature (including endothelial cells, basal membrane matrix, and pericyte), and oligodendrocytes. Numerous studies have demonstrated that exercise can produce protective effects in cerebral ischemia, and that exercise may protect the integrity of the blood-brain barrier, promote neovascularization, reduce neuronal apoptosis, and eventually lead to an improvement in neurological function after cerebral ischemia. In this review, we summarized the potential mechanisms on the effect of exercise on cerebral ischemia, by mainly focusing on the neurovascular unit, with the aim of providing a novel therapeutic strategy for future treatment of cerebral ischemia.
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Affiliation(s)
- Hui Zhang
- School of Physical Education, Nanchang University, Nanchang, China
| | - Qi Xie
- Inpatient Department, Jiangxi Provincial People’s Hospital, Nanchang, China
| | - Juan Hu
- Yu Quan dao Health Center, Jiangxi Provincial People’s Hospital, Nanchang, China
- *Correspondence: Juan Hu,
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15
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Kumboyono K, Chomsy IN, Firdaus DH, Setiawan M, Wihastuti TA. Protective cardiovascular benefits of exercise training as measured by circulating endothelial cells and high-density lipoprotein in adults. J Taibah Univ Med Sci 2022; 17:701-706. [PMID: 35983453 PMCID: PMC9356360 DOI: 10.1016/j.jtumed.2021.12.003] [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: 10/20/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 11/25/2022] Open
Abstract
Objective This study aims to determine the protective cardiovascular effect of aerobic exercise training by measuring cluster of differentiation 146 (CD146), circulating endothelial cell (CEC), and high-density lipoprotein-cholesterol (HDL-C) levels in adults. Methods This study was an experimental pre-post-test without a control group. Forty-five participants were divided into three groups based on aerobic exercise training intensity: low, moderate, and high. Whole blood samples were measured for HDL-C levels. In addition, CEC was isolated from Peripheral Blood Mononuclear Cells (PBMC) samples, then identified by CD146 marker using flow cytometry. Results CEC percentage and HDL-C increase after aerobic exercise training. There was a significant difference in CEC percentage between the intensity groups. However, there was no difference in HDL-C levels. Conclusion Aerobic exercise training can protect cardiovascular health by stimulating CEC mobilization, identified by CD146. In addition, an HDL-C level increase also contributes to cardiovascular protection by decreasing inflammation levels, inhibiting low-density lipoprotein-cholesterol oxidation, improving endothelial regeneration capabilities, and lowering blood glucose.
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Affiliation(s)
- Kumboyono Kumboyono
- School of Nursing, Faculty of Health Sciences, University of Brawijaya, Malang, Indonesia
| | - Indah N. Chomsy
- Doctoral Program of Medical Science, Faculty of Medicine, University of Brawijaya, Malang, Indonesia
| | - Dylan H. Firdaus
- Master Program of Biomedical Science, Faculty of Medicine, University of Brawijaya, Malang, Indonesia
| | - Meddy Setiawan
- Internal Medicine Department, Faculty of Medicine, University of Muhammadiyah Malang, Malang, Indonesia
| | - Titin A. Wihastuti
- School of Nursing, Faculty of Health Sciences, University of Brawijaya, Malang, Indonesia
- Corresponding address: Nursing Department, Faculty of Health Sciences, University of Brawijaya, Malang, Indonesia.
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16
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Kinoshita K, Chung KK, Katsuki H, Arai K. Therapeutic potential of prophylactic exercise for intracerebral hemorrhage. Neural Regen Res 2021; 17:1484-1485. [PMID: 34916426 PMCID: PMC8771097 DOI: 10.4103/1673-5374.330606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Keita Kinoshita
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA; Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kelly K Chung
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Hiroshi Katsuki
- Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
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17
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Wu C, Xu Y, Guo H, Tang C, Chen D, Zhu M. Effects of Aerobic Exercise and Mind-Body Exercise in Parkinson's Disease: A Mixed-Treatment Comparison Analysis. Front Aging Neurosci 2021; 13:739115. [PMID: 34867273 PMCID: PMC8637737 DOI: 10.3389/fnagi.2021.739115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 10/28/2021] [Indexed: 01/14/2023] Open
Abstract
Background/Objectives: Aerobic exercise and mind-body exercise, are vital for improving motor and non-motor functional performance of Parkinson's disease (PD). However, evidence-based recommendations on which type of exercise is most suitable for each individual are still lacking. Therefore, we conduct a network meta-analysis to assess the relative efficacy of aerobic and mind-body exercise on motor function and non-motor symptoms in Parkinson's disease and to determine which of these therapies are the most suitable. Design: A network meta-analysis and dose-response analysis. Setting and Participants: Medline, Embase (all via Ovid), and the Cochrane Central Register of Controlled Trials were comprehensively searched for related trials through April 2021. Measurements: Study quality was evaluated using the Cochrane Risk of Bias Tool. The effect sizes of continuous outcomes were calculated using mean differences (MDs) or standardized mean differences (SMDs). A network meta-analysis with a frequentist approach was conducted to estimate the efficacy and probability rankings of the therapies. The dose-response relationship was determined based on metaregression and SUCRA. Results: Fifty-two trials with 1971 patients evaluating six different therapies were identified. For the UPDRS-motor score and TUG score, yoga all ranked highest (SUCRA = 92.8%, 92.6%, respectively). The SUCRA indicated that walking may best improve the BBS score (SUCRA = 90.2%). Depression, cognitive and activities of daily living scores were significantly improved by yoga (SUCRA: 86.3, 95.1, and 79.5%, respectively). In the dose-response analysis, 60-min sessions, two times a week might be the most suitable dose of yoga for reducing the UPDRS-motor score of PD patients. Conclusion: Yoga and walking are important options for increasing functional mobility and balance function, and yoga might be particularly effective for decreasing depressive symptoms and cognitive impairment and improving activities of daily living in PD. The potential optimal dose of yoga for enhancing motor ability in PD patients is 60-min sessions, two times a week. Registration: PROSPERO CRD42021224823.
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Affiliation(s)
- Chunxiao Wu
- Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Guangdong, China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yingshan Xu
- Clinical Medical of Acupuncture, Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongji Guo
- Clinical Medical of Acupuncture, Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chunzhi Tang
- Clinical Medical of Acupuncture, Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dongfeng Chen
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Meiling Zhu
- Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Guangdong, China
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18
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Kingsbury C, Shear A, Heyck M, Sadanandan N, Zhang H, Gonzales-Portillo B, Cozene B, Sheyner M, Navarro-Torres L, García-Sánchez J, Lee JY, Borlongan CV. Inflammation-relevant microbiome signature of the stroke brain, gut, spleen, and thymus and the impact of exercise. J Cereb Blood Flow Metab 2021; 41:3200-3212. [PMID: 34427146 PMCID: PMC8669279 DOI: 10.1177/0271678x211039598] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Stroke remains a significant unmet need in the clinic with few therapeutic options. We, and others, have implicated the role of inflammatory microbiota in stroke secondary cell death. Elucidating this inflammation microbiome as a biomarker may improve stroke diagnosis and treatment. Here, adult Sprague-Dawley rats performed 30 minutes of exercise on a motorized treadmill for 3 consecutive days prior to transient middle cerebral artery occlusion (MCAO). Stroke animals that underwent exercise showed 1) robust behavioral improvements, 2) significantly smaller infarct sizes and increased peri-infarct cell survival and 3) decreasing trends of inflammatory microbiota BAC303, EREC482, and LAB158 coupled with significantly reduced levels of inflammatory markers ionized calcium binding adaptor molecule 1, tumor necrosis factor alpha, and mouse monoclonal MHC Class II RT1B in the brain, gut, spleen, and thymus compared to non-exercised stroke rats. These results suggest that a specific set of inflammatory microbiota exists in central and peripheral organs and can serve as a disease biomarker and a therapeutic target for stroke.
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Affiliation(s)
- Chase Kingsbury
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Alex Shear
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Matt Heyck
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Nadia Sadanandan
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Henry Zhang
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Bella Gonzales-Portillo
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Blaise Cozene
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Michael Sheyner
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Lisset Navarro-Torres
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Julián García-Sánchez
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Jea-Young Lee
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Cesario V Borlongan
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
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19
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Exercise mimetics: harnessing the therapeutic effects of physical activity. Nat Rev Drug Discov 2021; 20:862-879. [PMID: 34103713 DOI: 10.1038/s41573-021-00217-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2021] [Indexed: 02/05/2023]
Abstract
Exercise mimetics are a proposed class of therapeutics that specifically mimic or enhance the therapeutic effects of exercise. Increased physical activity has demonstrated positive effects in preventing and ameliorating a wide range of diseases, including brain disorders such as Alzheimer disease and dementia, cancer, diabetes and cardiovascular disease. This article discusses the molecular mechanisms and signalling pathways associated with the beneficial effects of physical activity, focusing on effects on brain function and cognitive enhancement. Emerging therapeutic targets and strategies for the development of exercise mimetics, particularly in the field of central nervous system disorders, as well as the associated opportunities and challenges, are discussed.
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20
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Vasconcelos NN, Pereira LA, Silva RSR, Dias KSSA, Mourão TS, Pereira LC, Cota VR, Pinto FCH, Damázio LCM. High Intensity Physical Exercise before the Brain Ischemia Promotes Increase in Brain Injury. J Stroke Cerebrovasc Dis 2021; 30:106148. [PMID: 34644665 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106148] [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: 07/20/2021] [Revised: 09/07/2021] [Accepted: 09/26/2021] [Indexed: 01/08/2023] Open
Abstract
Studies have demonstrated the beneficial effects of light- and moderate-intensity physical exercise on the nervous system of animals with cerebral ischemia. To investigate the effects of two high-intensity physical exercise protocols, standardized for resistance and strength gain, in rats trained before cerebral ischemia induced by Bilateral Common Carotid Artery Occlusion (BCCAO). Forty-eight male Wistar rats were divided into two groups: with ischemia and without ischemia (sham). Both groups were subdivided into animals that performed high-intensity exercises in the muscle strength modality (I+Ex2; Sham+Ex2; n=16); animals submitted to high-intensity exercises in the aerobic modality (I+Ex1; Sham+Ex1; n=16), and animals that did not practice physical exercises - sedentary (I+Sed; Sham+Sed, n=16). Cerebral ischemia was induced using the BCCAO model. The physical training program used before the procedure was of high intensity, in the aerobic and muscular strength modalities, and was performed using a vertical ladder, for 4 weeks, 5 days per week. In order to process and stain the brain tissue, the Nissl method was used for neuron labeling and quantification in the cortex, striatum, and hippocampus. As for the animals' body weight and the heart weight differences were found between the groups I+Ex2 and Sham+Ex2 (p<0.05). Data on neuron quantification in the cerebral cortex, dentate gyrus, and right and left striatum revealed significant differences between groups. High-intensity physical training in the strength gain modality promotes significant damage to the animal's brain when performed prior to BCCAO-induced cerebral ischemia.
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Affiliation(s)
- Nathália Nascimento Vasconcelos
- Graduate Program in Morphofunctional Sciences of the Department of Natural Sciences, Federal University of São João del-Rei, 36301-1600, MG, Brazil; Department of Medicine, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Luan Alves Pereira
- Biological Sciences Course of the Department of Natural Sciences, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Regina Suzette Rodrigues Silva
- Biological Sciences Course of the Department of Natural Sciences, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Karine Sthéfany Serpa Amaral Dias
- Biological Sciences Course of the Department of Natural Sciences, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Thiago Silveira Mourão
- Biological Sciences Course of the Department of Natural Sciences, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Liliane Costa Pereira
- Department of Medicine, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Vinícius Rosa Cota
- Department of Electrical Engineering, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Flávia Carmo Horta Pinto
- Department of Natural Sciences, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil
| | - Laila Cristina Moreira Damázio
- Department of Medicine, Federal University of São João del-Rei, 36301-160, São João del-Rei, MG, Brazil; President Tancredo de Almeida Neves University Center, 36301-182, São João del-Rei, MG, Brazil.
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21
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Wills M, Ding Y. Mini-review (Part II): A clinical consideration on exercise and ischemic conditioning in stroke rehabilitation. Brain Circ 2021; 7:225-229. [PMID: 35071837 PMCID: PMC8757501 DOI: 10.4103/bc.bc_56_21] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/08/2021] [Accepted: 09/17/2021] [Indexed: 11/04/2022] Open
Abstract
Exercise therapy is commonly recommended and is often considered to be the gold standard of rehabilitation in patients with ischemic stroke. However, implementation and standardization of exercise therapy are challenging as patients vary in their abilities, disabilities, and willingness to participate in exercise rehabilitation after a cerebrovascular event. Remote ischemic conditioning (RIC) is a more passive and accessible therapy that, although remains in its infancy, has the potential to confer similar neuroprotective effects as exercise. In the previously published Part I of this Mini Review, we examined the biochemical evidence for exercise and RIC and noted that the in vitro results may be misleading outside of the context of clinical application. In the present review, we investigate the various clinical parameters by which exercise and RIC therapy may be most beneficial to ischemic stroke victims. We also extend our discussion to consider the therapeutic combination of RIC and exercise therapy to maximize functional outcomes after stroke.
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Affiliation(s)
- Melissa Wills
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA
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22
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Stephan JS, Sleiman SF. Exercise Factors Released by the Liver, Muscle, and Bones Have Promising Therapeutic Potential for Stroke. Front Neurol 2021; 12:600365. [PMID: 34108925 PMCID: PMC8181424 DOI: 10.3389/fneur.2021.600365] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 05/03/2021] [Indexed: 01/15/2023] Open
Abstract
Stroke is one of the leading causes of death and disability in the world. Stroke not only affects the patients, but also their families who serve as the primary caregivers. Discovering novel therapeutic targets for stroke is crucial both from a quality of life perspective as well as from a health economic perspective. Exercise is known to promote neuroprotection in the context of stroke. Indeed, exercise induces the release of blood-borne factors that promote positive effects on the brain. Identifying the factors that mediate the positive effects of exercise after ischemic stroke is crucial for the quest for novel therapies. This approach will yield endogenous molecules that normally cross the blood brain barrier (BBB) and that can mimic the effects of exercise. In this minireview, we will discuss the roles of exercise factors released by the liver such as beta-hydroxybutyrate (DBHB), by the muscle such as lactate and irisin and by the bones such as osteocalcin. We will also address their therapeutic potential in the context of ischemic stroke.
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Affiliation(s)
- Joseph S Stephan
- School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Sama F Sleiman
- Biology Program, Lebanese American University, Byblos, Lebanon
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23
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Jodeiri Farshbaf M, Alviña K. Multiple Roles in Neuroprotection for the Exercise Derived Myokine Irisin. Front Aging Neurosci 2021; 13:649929. [PMID: 33935687 PMCID: PMC8086837 DOI: 10.3389/fnagi.2021.649929] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/15/2021] [Indexed: 12/11/2022] Open
Abstract
Exercise has multiple beneficial effects on health including decreasing the risk of neurodegenerative diseases. Such effects are thought to be mediated (at least in part) by myokines, a collection of cytokines and other small proteins released from skeletal muscles. As an endocrine organ, skeletal muscle synthesizes and secretes a wide range of myokines which contribute to different functions in different organs, including the brain. One such myokine is the recently discovered protein Irisin, which is secreted into circulation from skeletal muscle during exercise from its membrane bound precursor Fibronectin type III domain-containing protein 5 (FNDC5). Irisin contributes to metabolic processes such as glucose homeostasis and browning of white adipose tissue. Irisin also crosses the blood brain barrier and initiates a neuroprotective genetic program in the hippocampus that culminates with increased expression of brain derived neurotrophic factor (BDNF). Furthermore, exercise and FNDC5/Irisin have been shown to have several neuroprotective effects against injuries in ischemia and neurodegenerative disease models, including Alzheimer's disease. In addition, Irisin has anxiolytic and antidepressant effects. In this review we present and summarize recent findings on the multiple effects of Irisin on neural function, including signaling pathways and mechanisms involved. We also discuss how exercise can positively influence brain function and mental health via the "skeletal muscle-brain axis." While there are still many unanswered questions, we put forward the idea that Irisin is a potentially essential mediator of the skeletal muscle-brain crosstalk.
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Affiliation(s)
| | - Karina Alviña
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States.,Department of Neuroscience, University of Florida, Gainesville, FL, United States
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24
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Delayed Exercise-induced Upregulation of Angiogenic Proteins and Recovery of Motor Function after Photothrombotic Stroke in Mice. Neuroscience 2021; 461:57-71. [PMID: 33667592 DOI: 10.1016/j.neuroscience.2021.02.023] [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] [Received: 12/16/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 01/02/2023]
Abstract
Treatments promoting post-stroke functional recovery continue to be an unmet therapeutic problem with physical rehabilitation being the most reproduced intervention in preclinical and clinical studies. Unfortunately, physiotherapy is typically effective at high intensity and early after stroke - requirements that are hardly attainable by stroke survivors. The aim of this study was to directly evaluate and compare the dose-dependent effect of delayed physical rehabilitation (daily 5 h or overnight voluntary wheel running; initiated on post-stroke day 7 and continuing through day 21) on recovery of motor function in the mouse photothrombotic model of ischemic stroke and correlate it with angiogenic potential of the brain. Our observations indicate that overnight but not 5 h access to running wheels facilitates recovery of motor function in mice in grid-walking test. Western blotting and immunofluorescence microscopy experiments evaluating the expression of angiogenesis-associated proteins VEGFR2, doppel and PDGFRβ in the peri-infarct and corresponding contralateral motor cortices indicate substantial upregulation of these proteins (≥2-fold) in the infarct core and surrounding cerebral cortex in the overnight running mice on post-stroke day 21. These findings indicate that there is a dose-dependent relationship between the extent of voluntary exercise, motor recovery and expression of angiogenesis-associated proteins in this expert-recommended mouse ischemic stroke model. Notably, our observations also point out to enhanced angiogenesis and presence of pericytes within the infarct core region during the chronic phase of stroke, suggesting a potential contribution of this tissue area in the mechanisms governing post-stroke functional recovery.
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25
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Li F, Geng X, Lee H, Wills M, Ding Y. Neuroprotective Effects of Exercise Postconditioning After Stroke via SIRT1-Mediated Suppression of Endoplasmic Reticulum (ER) Stress. Front Cell Neurosci 2021; 15:598230. [PMID: 33664650 PMCID: PMC7920953 DOI: 10.3389/fncel.2021.598230] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 01/25/2021] [Indexed: 01/13/2023] Open
Abstract
While it is well-known that pre-stroke exercise conditioning reduces the incidence of stroke and the development of comorbidities, it is unclear whether post-stroke exercise conditioning is also neuroprotective. The present study investigated whether exercise postconditioning (PostE) induced neuroprotection and elucidated the involvement of SIRT1 regulation on the ROS/ER stress pathway. Adult rats were subjected to middle cerebral artery occlusion (MCAO) followed by either: (1) resting; (2) mild exercise postconditioning (MPostE); or (3) intense exercise postconditioning (IPostE). PostE was initiated 24 h after reperfusion and performed on a treadmill. At 1 and 3 days thereafter, we determined infarct volumes, neurological defects, brain edema, apoptotic cell death through measuring pro- (BAX and Caspase-3) and anti-apoptotic (Bcl-2) proteins, and ER stress through the measurement of glucose-regulated protein 78 (GRP78), inositol-requiring 1α (IRE1α), protein kinase RNA-like endoplasmic reticulum kinase (PERK), activating transcription factor 6 (ATF6), C/EBP homologous protein (CHOP), Caspase-12, and SIRT1. Proteins were measured by Western blot. ROS production was detected by flow cytometry.Compared to resting rats, both MPostE and IPostE significantly decreased brain infarct volumes and edema, neurological deficits, ROS production, and apoptotic cell death. MPostE further increased Bcl-2 expression and Bcl-2/BAX ratio as well as BAX and Caspase-3 expressions and ROS production (*p < 0.05). Both PostE groups saw decreases in ER stress proteins, while MPostE demonstrated a further reduction in GRP78 (***p < 0.001) and Caspase-12 (*p < 0.05) expressions at 1 day and IRE1α (**p < 0.01) and CHOP (*p < 0.05) expressions at 3 days. Additionally, both PostE groups saw significant increases in SIRT1 expression.In this study, both mild and intense PostE levels induced neuroprotection after stroke through SIRT1 and ROS/ER stress pathway. Additionally, the results may provide a base for our future study regarding the regulation of SIRT1 on the ROS/ER stress pathway in the biochemical processes underlying post-stroke neuroprotection. The results suggest that mild exercise postconditioning might play a similar neuroprotective role as intensive exercise and could be an effective exercise strategy as well.
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Affiliation(s)
- Fengwu Li
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Hangil Lee
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Melissa Wills
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States.,Department of Research and Development Center, John D. Dingell VA Medical Center, Detroit, MI, United States
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26
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Garrigos D, Martínez-Morga M, Toval A, Kutsenko Y, Barreda A, Do Couto BR, Navarro-Mateu F, Ferran JL. A Handful of Details to Ensure the Experimental Reproducibility on the FORCED Running Wheel in Rodents: A Systematic Review. Front Endocrinol (Lausanne) 2021; 12:638261. [PMID: 34040580 PMCID: PMC8141847 DOI: 10.3389/fendo.2021.638261] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 04/16/2021] [Indexed: 12/21/2022] Open
Abstract
A well-documented method and experimental design are essential to ensure the reproducibility and reliability in animal research. Experimental studies using exercise programs in animal models have experienced an exponential increase in the last decades. Complete reporting of forced wheel and treadmill exercise protocols would help to ensure the reproducibility of training programs. However, forced exercise programs are characterized by a poorly detailed methodology. Also, current guidelines do not cover the minimum data that must be included in published works to reproduce training programs. For this reason, we have carried out a systematic review to determine the reproducibility of training programs and experimental designs of published research in rodents using a forced wheel system. Having determined that most of the studies were not detailed enough to be reproducible, we have suggested guidelines for animal research using FORCED exercise wheels, which could also be applicable to any form of forced exercise.
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Affiliation(s)
- Daniel Garrigos
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Marta Martínez-Morga
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Angel Toval
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Yevheniy Kutsenko
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Alberto Barreda
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Bruno Ribeiro Do Couto
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
- Faculty of Psychology, University of Murcia, Murcia, Spain
| | - Fernando Navarro-Mateu
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
- Unidad de Docencia, Investigación y Formación en Salud Mental (UDIF-SM), Servicio Murciano de Salud, Murcia, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Departamento de Psicología Básica y Metodología, Universidad de Murcia, Murcia, Spain
| | - José Luis Ferran
- Department of Human Anatomy and Psychobiology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia—IMIB, Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
- *Correspondence: José Luis Ferran,
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27
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Di Raimondo D, Rizzo G, Musiari G, Tuttolomondo A, Pinto A. Role of Regular Physical Activity in Neuroprotection against Acute Ischemia. Int J Mol Sci 2020; 21:ijms21239086. [PMID: 33260365 PMCID: PMC7731306 DOI: 10.3390/ijms21239086] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/11/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022] Open
Abstract
One of the major obstacles that prevents an effective therapeutic intervention against ischemic stroke is the lack of neuroprotective agents able to reduce neuronal damage; this results in frequent evolution towards a long-term disability with limited alternatives available to aid in recovery. Nevertheless, various treatment options have shown clinical efficacy. Neurotrophins such as brain-derived neurotrophic factor (BDNF), widely produced throughout the brain, but also in distant tissues such as the muscle, have demonstrated regenerative properties with the potential to restore damaged neural tissue. Neurotrophins play a significant role in both protection and recovery of function following neurological diseases such as ischemic stroke or traumatic brain injury. Unfortunately, the efficacy of exogenous administration of these neurotrophins is limited by rapid degradation with subsequent poor half-life and a lack of blood-brain-barrier permeability. Regular exercise seems to be a therapeutic approach able to induce the activation of several pathways related to the neurotrophins release. Exercise, furthermore, reduces the infarct volume in the ischemic brain and ameliorates motor function in animal models increasing astrocyte proliferation, inducing angiogenesis and reducing neuronal apoptosis and oxidative stress. One of the most critical issues is to identify the relationship between neurotrophins and myokines, newly discovered skeletal muscle-derived factors released during and after exercise able to exert several biological functions. Various myokines (e.g., Insulin-Like Growth Factor 1, Irisin) have recently shown their ability to protects against neuronal injury in cerebral ischemia models, suggesting that these substances may influence the degree of neuronal damage in part via inhibiting inflammatory signaling pathways. The aim of this narrative review is to examine the main experimental data available to date on the neuroprotective and anti-ischemic role of regular exercise, analyzing also the possible role played by neurotrophins and myokines.
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28
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Freitas-Andrade M, Raman-Nair J, Lacoste B. Structural and Functional Remodeling of the Brain Vasculature Following Stroke. Front Physiol 2020; 11:948. [PMID: 32848875 PMCID: PMC7433746 DOI: 10.3389/fphys.2020.00948] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Maintenance of cerebral blood vessel integrity and regulation of cerebral blood flow ensure proper brain function. The adult human brain represents only a small portion of the body mass, yet about a quarter of the cardiac output is dedicated to energy consumption by brain cells at rest. Due to a low capacity to store energy, brain health is heavily reliant on a steady supply of oxygen and nutrients from the bloodstream, and is thus particularly vulnerable to stroke. Stroke is a leading cause of disability and mortality worldwide. By transiently or permanently limiting tissue perfusion, stroke alters vascular integrity and function, compromising brain homeostasis and leading to widespread consequences from early-onset motor deficits to long-term cognitive decline. While numerous lines of investigation have been undertaken to develop new pharmacological therapies for stroke, only few advances have been made and most clinical trials have failed. Overall, our understanding of the acute and chronic vascular responses to stroke is insufficient, yet a better comprehension of cerebrovascular remodeling following stroke is an essential prerequisite for developing novel therapeutic options. In this review, we present a comprehensive update on post-stroke cerebrovascular remodeling, an important and growing field in neuroscience, by discussing cellular and molecular mechanisms involved, sex differences, limitations of preclinical research design and future directions.
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Affiliation(s)
| | - Joanna Raman-Nair
- Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Baptiste Lacoste
- Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
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29
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Wang J, Liu H, Chen S, Zhang W, Chen Y, Yang Y. Moderate exercise has beneficial effects on mouse ischemic stroke by enhancing the functions of circulating endothelial progenitor cell-derived exosomes. Exp Neurol 2020; 330:113325. [PMID: 32325158 PMCID: PMC11055452 DOI: 10.1016/j.expneurol.2020.113325] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 10/24/2022]
Abstract
Exosomes (EXs) are emerging as novel players in the beneficial effects induced by exercise on vascular diseases. We have recently revealed that moderate exercise enhances the function of circulating endothelial progenitor cell-derived EXs (cEPC-EXs) on protecting endothelial cells against hypoxia injury. However, the relationship between the changes of cEPC-EXs and the effects of exercise on ischemic stroke (IS) is unknown. Here, we investigated whether exercise-regulated EPC-EXs contribute to the beneficial effects of exercise on IS. C57BL/6 mice received moderate treadmill exercise (10 m/min) for 4-wks and then were subjected to middle cerebral artery occlusion (MCAO) stroke. The neurologic deficit score (NDS), infarct volume, microvessel density, cell apoptosis, angiogenesis/neurogenesis, sensorimotor functions were determined on day 2 (acute stage) and/or day 28 (chronic stage) post-stroke. The miR-126 and EPC-EX levels were analyzed by RT-PCR or nanoparticle tracking analysis combined with microbeads and used for correlation analyses. The function of EPC-EXs from exercised mice was detected in a hypoxia neuron model. Cell apoptosis, axon growth ability and gene expressions (cas-3 and Akt) were measured. Our data showed that: i) On day 2, exercised mice had decreased NDS and infarct volume, reduced cell apoptosis rate and cleaved cas-3 level, and a higher microvessel density than those in control (no-exercise) mice. The levels of EPC-EXs in plasma and brain tissue were raised and positively correlated in exercised mice. Meanwhile, the miR-126 level in cEPC-EXs and in ischemic tissue were upregulated in exercised mice. The EPC-EXs and their carried miR-126 levels negatively correlated with the infarct volume and cell apoptosis, whereas positively correlated with microvessel density. In addition, cEPC-EXs from exercised mice elicited protective effects on neurons against hypoxia-induced apoptosis and compromised axon growth ability which were blocked by miR-126 and PI3k inhibitors in vitro. ii) On day 28, exercised mice had less infarct volume, higher microvessel density, angiogenesis/neurogenesis and better sensorimotor functions. The levels of BDNF, p-TrkB/TrkB and p-Akt/Akt were upregulated in the brain of exercised mice. These recovery indexes correlated with the levels of cEPC-EXs and their miR-126. In conclusion, our data suggest that moderate exercise intervention has protective effects on the brain against MCAO-induced ischemic injury in both acute and chronic stages which might via the release of miR-126 enriched EPC-EXs.
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Affiliation(s)
- Jinju Wang
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA.
| | - Hua Liu
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA; College of Health Science, Wuhan Sports University, Wuhan 430079, China
| | - Shuzhen Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Wenfeng Zhang
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Yanfang Chen
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
| | - Yi Yang
- College of Health Science, Wuhan Sports University, Wuhan 430079, China.
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30
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Li F, Geng X, Huber C, Stone C, Ding Y. In Search of a Dose: The Functional and Molecular Effects of Exercise on Post-stroke Rehabilitation in Rats. Front Cell Neurosci 2020; 14:186. [PMID: 32670026 PMCID: PMC7330054 DOI: 10.3389/fncel.2020.00186] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/28/2020] [Indexed: 12/11/2022] Open
Abstract
Although physical exercise has been demonstrated to augment recovery of the post-stroke brain, the question of what level of exercise intensity optimizes neurological outcomes of post-stroke rehabilitation remains unsettled. In this study, we aim to clarify the mechanisms underlying the intensity-dependent effect of exercise on neurologic function, and thereby to help direct the clinical application of exercise-based neurorehabilitation. To do this, we used a well-established rat model of ischemic stroke consisting of cerebral ischemia induction through middle cerebral artery occlusion (MCAO). Ischemic rats were subsequently assigned either to a control group entailing post-stroke rest or to one of two exercise groups distinguished by the intensity of their accompanying treadmill regimens. After 24 h of reperfusion, exercise was initiated. Infarct volume, apoptotic cell death, and neurological defects were quantified in all groups at 3 days, and motor and cognitive functions were tracked up to day-28. Additionally, Western blotting was used to assess the influence of our interventions on several proteins related to synaptogenesis and neuroplasticity (growth-associated protein 43, a microtubule-associated protein, postsynaptic density-95, synapsin I, hypoxia-inducible factor-1α, brain-derived neurotrophic factor, nerve growth factor, tyrosine kinase B, and cAMP response element-binding protein). Our results were in equal parts encouraging and surprising. Both mild and intense exercise significantly decreased infarct volume, cell death, and neurological deficits. Motor and cognitive function, as determined using an array of tests such as beam balance, forelimb placing, and the Morris water maze, were also significantly improved by both exercise protocols. Interestingly, while an obvious enhancement of neuroplasticity proteins was shown in both exercise groups, mild exercise rats demonstrated a stronger effect on the expressions of Tau (p < 0.01), brain-derived neurotrophic factor (p < 0.01), and tyrosine kinase B (p < 0.05). These findings contribute to the growing body of literature regarding the positive effects of both mild and intense long-term treadmill exercise on brain injury, functional outcome, and neuroplasticity. Additionally, the results may provide a base for our future study regarding the regulation of HIF-1α on the BDNF/TrkB/CREB pathway in the biochemical processes underlying post-stroke synaptic plasticity.
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Affiliation(s)
- Fengwu Li
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- China-America Institute of Neuroscience, Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Christian Huber
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Christopher Stone
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States.,Department of Research and Development Center, John D. Dingell VA Medical Center, Detroit, MI, United States
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31
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Kaneko Y, Lee JY, Tajiri N, Tuazon JP, Lippert T, Russo E, Yu SJ, Bonsack B, Corey S, Coats AB, Kingsbury C, Chase TN, Koga M, Borlongan CV. Translating intracarotid artery transplantation of bone marrow-derived NCS-01 cells for ischemic stroke: Behavioral and histological readouts and mechanistic insights into stem cell therapy. Stem Cells Transl Med 2019; 9:203-220. [PMID: 31738023 PMCID: PMC6988762 DOI: 10.1002/sctm.19-0229] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022] Open
Abstract
The present study used in vitro and in vivo stroke models to demonstrate the safety, efficacy, and mechanism of action of adult human bone marrow‐derived NCS‐01 cells. Coculture with NCS‐01 cells protected primary rat cortical cells or human neural progenitor cells from oxygen glucose deprivation. Adult rats that were subjected to middle cerebral artery occlusion, transiently or permanently, and subsequently received intracarotid artery or intravenous transplants of NCS‐01 cells displayed dose‐dependent improvements in motor and neurological behaviors, and reductions in infarct area and peri‐infarct cell loss, much better than intravenous administration. The optimal dose was 7.5 × 106 cells/mL when delivered via the intracarotid artery within 3 days poststroke, although therapeutic effects persisted even when administered at 1 week after stroke. Compared with other mesenchymal stem cells, NCS‐01 cells ameliorated both the structural and functional deficits after stroke through a broad therapeutic window. NCS‐01 cells secreted therapeutic molecules, such as basic fibroblast growth factor and interleukin‐6, but equally importantly we observed for the first time the formation of filopodia by NCS‐01 cells under stroke conditions, characterized by cadherin‐positive processes extending from the stem cells toward the ischemic cells. Collectively, the present efficacy readouts and the novel filopodia‐mediated mechanism of action provide solid lab‐to‐clinic evidence supporting the use of NCS‐01 cells for treatment of stroke in the clinical setting.
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Affiliation(s)
- Yuji Kaneko
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Jea-Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Naoki Tajiri
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Julian P Tuazon
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Trenton Lippert
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Eleonora Russo
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Seong-Jin Yu
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Brooke Bonsack
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Sydney Corey
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Alexandreya B Coats
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Chase Kingsbury
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
| | - Thomas N Chase
- KM Pharmaceutical Consulting LLC, Washington, District of Columbia
| | - Minako Koga
- KM Pharmaceutical Consulting LLC, Washington, District of Columbia
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida
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32
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Wright DK, Brady RD, Kamnaksh A, Trezise J, Sun M, McDonald SJ, Mychasiuk R, Kolbe SC, Law M, Johnston LA, O'Brien TJ, Agoston DV, Shultz SR. Repeated mild traumatic brain injuries induce persistent changes in plasma protein and magnetic resonance imaging biomarkers in the rat. Sci Rep 2019; 9:14626. [PMID: 31602002 PMCID: PMC6787341 DOI: 10.1038/s41598-019-51267-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/28/2019] [Indexed: 01/05/2023] Open
Abstract
A single mild traumatic brain injury (mTBI) typically causes only transient symptoms, but repeated mTBI (RmTBI) is associated with cumulative and chronic neurological abnormalities. Clinical management of mTBI is challenging due to the heterogeneous, subjective and transient nature of symptoms, and thus would be aided by objective biomarkers. Promising biomarkers including advanced magnetic resonance imaging (MRI) and plasma levels of select proteins were examined here in a rat model of RmTBI. Rats received either two mild fluid percussion or sham injuries administered five days apart. Rats underwent MRI and behavioral testing 1, 3, 5, 7, and 30 days after the second injury and blood samples were collected on days 1, 7, and 30. Structural and diffusion-weighted MRI revealed that RmTBI rats had abnormalities in the cortex and corpus callosum. Proteomic analysis of plasma found that RmTBI rats had abnormalities in markers indicating axonal and vascular injury, metabolic and mitochondrial dysfunction, and glial reactivity. These changes occurred in the presence of ongoing cognitive and sensorimotor deficits in the RmTBI rats. Our findings demonstrate that RmTBI can result in chronic neurological abnormalities, provide insight into potential contributing pathophysiological mechanisms, and supports the use of MRI and plasma protein measures as RmTBI biomarkers.
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Affiliation(s)
- David K Wright
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.,The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Rhys D Brady
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Alaa Kamnaksh
- Department of Anatomy, Physiology, and Genetics, Uniformed Services University, Bethesda, MD, 20814, USA
| | - Jack Trezise
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Mujun Sun
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Stuart J McDonald
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Richelle Mychasiuk
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Scott C Kolbe
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Meng Law
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Leigh A Johnston
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3052, Australia.,Department of Biomedical Engineering, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Terence J O'Brien
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Denes V Agoston
- Department of Anatomy, Physiology, and Genetics, Uniformed Services University, Bethesda, MD, 20814, USA
| | - Sandy R Shultz
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia. .,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3052, Australia.
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33
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Shear A, Nishihiro S, Hishikawa T, Hiramatsu M, Sugiu K, Yasuhara T, Date I. Cerebral circulation improves with indirect bypass surgery combined with gene therapy. Brain Circ 2019; 5:119-123. [PMID: 31620658 PMCID: PMC6785951 DOI: 10.4103/bc.bc_33_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 02/06/2023] Open
Abstract
Angiogenesis involves new blood vessels sprouting from preexisting blood vessels. This process may serve to improve brain circulation. Moyamoya disease (MMD) is a cerebrovascular disorder causing intracranial stenosis which significantly reduces the blood supply to the brain. Mainly stroke is the first symptom of the disorder, so treatments that reduce the risk of stroke are used for patients with MMD. To prevent stroke for those with chronic cerebral hypoperfusion, more blood needs to flow to the brain, which was thought to be achieved by enhancing angiogenesis. Indirect bypass surgery, such as encephalo-myo-synangiosis (EMS), is used for revascularization. However, EMS alone sometimes cannot provide enough circulation to avoid ischemic strokes. The current study examined if EMS combined with high-mobility group box-1 (HMGB1) and vascular endothelial growth factor (VEGF) enhanced angiogenesis and increased cerebral circulation. The results indicated that HMGB1 administered with EMS increased angiogenesis through a VEGF-dependent mechanism. In addition, exercising and stem cell transplantation possess possible means to increase angiogenesis. Overall, EMS with gene therapy, maintaining fitness, and stem cell utilization may prevent or help one recover from stroke by enhancing brain angiogenesis. Thus, these treatments may be applicable for patients with MMD. This paper is a review article. Referred literature in this paper has been listed in the references section. The datasets supporting the conclusions of this article are available online by searching various databases, including PubMed.
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Affiliation(s)
- Alex Shear
- Department of Neurosurgery and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Shingo Nishihiro
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tomohito Hishikawa
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Masafumi Hiramatsu
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kenji Sugiu
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takao Yasuhara
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Isao Date
- Department of Neurological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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34
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Zhang H, Lee JY, Borlongan CV, Tajiri N. A brief physical activity protects against ischemic stroke. Brain Circ 2019; 5:112-118. [PMID: 31620657 PMCID: PMC6785942 DOI: 10.4103/bc.bc_32_19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/31/2019] [Accepted: 09/07/2019] [Indexed: 02/07/2023] Open
Abstract
With restricted therapeutic opportunities, stroke remains a relevant, critical disease necessitating study. Due to the unique aspect of ischemic strokes, finding approaches to maintain the vigor of the cerebral vasculature, such as increased angiogenesis, may protect against stroke. Ischemic strokes are caused by disruptions in blood movement in the brain, resulting in a torrent of harmful cerebrovasculature modifications. In an investigation by Pianta et al., Sprague-Dawley rats have been separated into those that undergo exercise prior to middle cerebral artery occlusion (MCAO) and those that were not exposed to physical activity preceding MCAO. The outcomes and results of the current study gave new insights into the capacity of exercise to help prevent ischemic strokes or mitigate poststroke effects. The data collected from the study suggested that rats that went through a short bout of exercise before MCAO presented superior motor performance, more active cells in the peri-infarct region, and reduced infarct sizes. When compared to the control group, the rats that went through exercise also had heightened angiogenesis and improved neuroprotection. Thus, a brief bout of physical activity preceding a stroke may provide neuroprotection by enhancing the strength of the cerebrovasculature in the brain. This notion that even an instant of physical exercise before a stroke is induced can help dampen the effects of ischemic stroke, which could lead to future techniques in preventing the ischemic stroke so that it never happens at all.
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Affiliation(s)
- Henry Zhang
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Jea-Young Lee
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL, USA
| | - Naoki Tajiri
- Department of Neurophysiology and Brain Science, Graduate School of Medical Sciences and Medical School, Nagoya City University, Nagoya, Japan
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35
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Bonsack B, Borlongan MC, Lo EH, Arai K. Brief overview: Protective roles of astrocyte-derived pentraxin-3 in blood-brain barrier integrity. Brain Circ 2019; 5:145-149. [PMID: 31620663 PMCID: PMC6785941 DOI: 10.4103/bc.bc_37_19] [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] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/25/2019] [Accepted: 09/02/2019] [Indexed: 01/12/2023] Open
Abstract
Stroke is one of the world's leading causes of mortality and morbidity. Greater understanding is required of the underlying relationships in ischemic brains in order to prevent stroke or to develop effective treatment. This review highlights new findings about the relationship of blood–brain barrier with astrocytes, pentraxin-3 (PTX3), and other factors expressed during or after ischemic stroke. These are discussed with respect to their ameliorative or deleterious effects. These effects are measured in vivo in animal models as well as in vitro in cell cultures. Evidence was found to suggest that astrocytes play a key role in stroke by expressing PTX3, which, in turn, enhances endothelial tightness, increases tight junction proteins, and inhibits vascular endothelial growth factor. The role of astrocytes and PTX3 is examined in relation to hypoxic stress and conditioning as well as mitochondrial transfer. Astrocytes and PTX3 are placed in the context of brain circulation and related areas.
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Affiliation(s)
- Brooke Bonsack
- Center of Excellence for Aging and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Mia C Borlongan
- Center of Excellence for Aging and Brain Repair, College of Medicine, University of South Florida Morsani, Tampa, FL, USA
| | - Eng H Lo
- Department of Radiology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ken Arai
- Department of Radiology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Neurology, Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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36
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Lai JH, Chen KY, Wu JCC, Olson L, Brené S, Huang CZ, Chen YH, Kang SJ, Ma KH, Hoffer BJ, Hsieh TH, Chiang YH. Voluntary exercise delays progressive deterioration of markers of metabolism and behavior in a mouse model of Parkinson's disease. Brain Res 2019; 1720:146301. [PMID: 31226324 DOI: 10.1016/j.brainres.2019.146301] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 12/21/2022]
Abstract
Although a good deal is known about the genetics and pathophysiology of Parkinson's disease (PD), and information is emerging about its cause, there are no pharmacological treatments shown to have a significant, sustained capacity to prevent or attenuate the ongoing neurodegenerative processes. However, there is accumulating clinical results to suggest that physical exercise is such a treatment, and studies of animal models of the dopamine (DA) deficiency associated with the motor symptoms of PD further support this hypothesis. Exercise is a non-pharmacological, economically practical, and sustainable intervention with little or no risk and with significant additional health benefits. In this study, we investigated the long-term effects of voluntary exercise on motor behavior and brain biochemistry in the transgenic MitoPark mouse PD model with progressive degeneration of the DA systems caused by DAT-driven deletion of the mitochondrial transcription factor TFAM in DA neurons. We found that voluntary exercise markedly improved behavioral function, including overall motor activity, narrow beam walking, and rotarod performance. There was also improvement of biochemical markers of nigrostriatal DA input. This was manifested by increased levels of DA measured by HPLC, and of the DA membrane transporter measured by PET. Moreover, exercise increased oxygen consumption and, by inference, ATP production via oxidative phosphorylation. Thus, exercise augmented aerobic mitochondrial oxidative metabolism vs glycolysis in the nigrostriatal system. We conclude that there are clear-cut physiological mechanisms for beneficial effects of exercise in PD.
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Affiliation(s)
- Jing-Huei Lai
- Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - John Chung-Che Wu
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Lars Olson
- Department of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Stefan Brené
- Department of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Chi-Zong Huang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Hua Chen
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shuo-Jhen Kang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsing Ma
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Barry J Hoffer
- Department of Neurosurgery, Case Western Reserve University, School of Medicine, Cleveland, OH, USA
| | - Tsung-Hsun Hsieh
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Hsiao Chiang
- Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.
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