Query: stroke

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Infectious Disease: Adenoviruses

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Total 25 results found since Jan 2013.

Reduction of glyoxalase 1 (GLO1) aggravates cerebrovascular remodeling via promoting the proliferation of basilar smooth muscle cells in hypertension.
Abstract Uncontrollable vascular smooth cell proliferation is responsible for vascular remodeling during hypertension development. Glyoxalase 1 (GLO1), the major enzyme detoxifying methylglyoxal, has a critical role in regulating proliferation of several cell types. However, little is known whether GLO1 is involved in cerebrovascular remodeling and basilar smooth muscle cell (BASMC) proliferation during hypertension. Here we explored the role of GLO1 in angiotensin II (Ang II)-induced cerebrovascular remodeling and proliferation of BASMCs and the underlying mechanisms. The protein expression of GLO1 in basilar art...
Source: Biochemical and Biophysical Research communications - August 13, 2019 Category: Biochemistry Authors: Gao M, Sun L, Liu YL, Xie JW, Qin L, Xue J, Wang YT, Guo KM, Ma MM, Li XY Tags: Biochem Biophys Res Commun Source Type: research

Effects of GDNF-Transfected Marrow Stromal Cells on Rats with Intracerebral Hemorrhage
Objective: The present study aimed to investigate the effects of Mesenchymal stem cells/glial cell line derived neurotrophic factor (MSCs/GDNF) transplantation on nerve reconstruction in rats with intracerebral hemorrhage. Methods: GDNF transduction to MSCs was using adenovirus vector pAdEasy-1-pAdTrack-CMV prepared. Intracerebral hemorrhage (ICH) was induced by injection of collagenase and heparin into the caudate putamen. At the third day after a collagenase-induced ICH, adult male SD rats were randomly divided into saline group, MSCs group and MSCs/GDNF group.
Source: Journal of Stroke and Cerebrovascular Diseases - June 24, 2019 Category: Neurology Authors: Li Deng, Xiaoqing Gao, Guangbi Fan, Chaoxian Yang Source Type: research

LRG1 Promotes Apoptosis and Autophagy through the TGFβ-smad1/5 Signaling Pathway to Exacerbate Ischemia/Reperfusion Injury
In this study, we discussed the function and mechanism of LRG1 in acute ischemic stroke from both basic and clinical research points of view. Mice underwent transient middle cerebral artery occlusion (tMCAO) surgery two weeks after LRG1 was overexpressed by the delivery of adeno-associated virus (AAV). For wild-type mice, both the protein and the transcript of LRG1 in the brain tissue were elevated after tMCAO. Meanwhile, the serum levels of LRG1 were decreased after tMCAO. The neuronal injury was shown aggravated in the AAV-LRG1 group (AAV-LRG1 mice with tMCAO) through infarction volume, neurological score, HE, and Nissl ...
Source: Neuroscience - June 18, 2019 Category: Neuroscience Source Type: research

Therapeutic potential of AAV9-S15D-RLC gene delivery in humanized MYL2 mouse model of HCM
This study is focused on aspartic acid-to-valine (D166V) mutation in the myosin regulatory light chain, RLC (MYL2 gene), associated with a malignant form of HCM. Since myosin RLC phosphorylation is critical for normal cardiac function, we aimed to exploit this post-translational modification via phosphomimetic-RLC gene therapy. We hypothesized that mimicking/modulating cardiac RLC phosphorylation in non-phosphorylatable D166V myocardium would improve heart function of HCM-D166V mice. Adeno-associated virus, serotype-9 (AAV9) was used to deliver phosphomimetic human RLC variant with serine-to-aspartic acid substitution at S...
Source: Journal of Molecular Medicine - May 17, 2019 Category: Molecular Biology Source Type: research

Canagliflozin Inhibits Human Endothelial Cell Proliferation and Tube Formation
In conclusion, the present study identified canagliflozin as a potent inhibitor of human EC proliferation. The anti-proliferative action of canagliflozin is observed in ECs isolated from both the venous and arterial circulation, and is partly due to the blockade of cyclin A expression. In addition, this study found that canagliflozin inhibits tube formation in cultured ECs and mouse aortic rings. Notably, these actions are specific for canagliflozin and not seen with other SGLT2 inhibitors. The ability of canagliflozin to exert these pleiotropic effects on EC function may contribute to both the adverse and salutary actions...
Source: Frontiers in Pharmacology - April 16, 2019 Category: Drugs & Pharmacology Source Type: research

OCT4B-190 protects against ischemic stroke by modulating GSK-3 β/HDAC6.
OCT4B-190 protects against ischemic stroke by modulating GSK-3β/HDAC6. Exp Neurol. 2019 Apr 11;: Authors: Chen Y, Wu Z, Zhu X, Zhang M, Zang X, Li X, Xu Y Abstract OCT4 is a key regulator in maintaining the pluripotency and self-renewal of embryonic stem cells (ESCs). Human OCT4 gene has three mRNA isoforms, termed OCT4A, OCT4B and OCT4B1. The 190-amino-acid protein isoform (OCT4B-190) is one of the major products of OCT4B mRNA, the biological function of which is still not well defined. Recent evidence suggests that OCT4B-190 may function in the cellular stress response. The glycogen synthase kinase...
Source: Experimental Neurology - April 11, 2019 Category: Neurology Authors: Chen Y, Wu Z, Zhu X, Zhang M, Zang X, Li X, Xu Y Tags: Exp Neurol Source Type: research

TRIM9-Mediated Resolution of Neuroinflammation Confers Neuroprotection upon Ischemic Stroke in Mice
Publication date: 9 April 2019Source: Cell Reports, Volume 27, Issue 2Author(s): Jianxiong Zeng, Yaoming Wang, Zhifei Luo, Lin-Chun Chang, Ji Seung Yoo, Huan Yan, Younho Choi, Xiaochun Xie, Benjamin E. Deverman, Viviana Gradinaru, Stephanie L. Gupton, Berislav V. Zlokovic, Zhen Zhao, Jae U. JungSummaryExcessive and unresolved neuroinflammation is a key component of the pathological cascade in brain injuries such as ischemic stroke. Here, we report that TRIM9, a brain-specific tripartite motif (TRIM) protein, was highly expressed in the peri-infarct areas shortly after ischemic insults in mice, but expression was decreased ...
Source: Cell Reports - April 10, 2019 Category: Cytology Source Type: research

KLF11 (Kru üppel-Like Factor 11) Inhibits Arterial Thrombosis via Suppression of Tissue Factor in the Vascular Wall.
Conclusions- Our data demonstrate that KLF11 is a novel transcriptional suppressor of F3 in vascular smooth muscle cells, constituting a potential molecular target for inhibition of arterial thrombosis. PMID: 30602303 [PubMed - as supplied by publisher]
Source: Arteriosclerosis, Thrombosis and Vascular Biology - January 3, 2019 Category: Cardiology Authors: Liang W, Fan Y, Lu H, Chang Z, Hu W, Sun J, Wang H, Zhu T, Wang J, Adili R, Garcia-Barrio MT, Holinstat M, Eitzman D, Zhang J, Chen YE Tags: Arterioscler Thromb Vasc Biol Source Type: research

Induction of Brain Arteriovenous Malformation Through CRISPR/Cas9-Mediated Somatic Alk1 Gene Mutations in Adult Mice
AbstractBrain arteriovenous malformation (bAVM) is an important risk factor for intracranial hemorrhage. The pathogenesis of bAVM has not been fully understood. Animal models are important tools for dissecting bAVM pathogenesis and testing new therapies. We have developed several mouse bAVM models using genetically modified mice. However, due to the body size, mouse bAVM models have some limitations. Recent studies identified somatic mutations in sporadic human bAVM. To develop a feasible tool to create sporadic bAVM in rodent and animals larger than rodent, we made tests using the CRISPR/Cas9 technique to induce somatic g...
Source: Translational Stroke Research - December 3, 2018 Category: Neurology Source Type: research

Efficacy Evaluation of Liver-Directed Gene Therapy in Fabry Mice
Conclusions: Collectively, these data provide strong evidence that our liver-directed AAV-mediated gene therapy approach holds considerable therapeutic potential for the treatment of Fabry disease. We anticipate that a single dose IV procedure will pose minimal burden to Fabry patients and will be a viable alternative to biweekly enzyme infusions, potentially reducing treatment-related morbidity whislt improving patient quality of life and potentially providing them with a functional long-term cure.DisclosuresKia: Freeline: Employment, Equity Ownership. McIntosh: Freeline: Consultancy. Hosseini: Freeline: Employment, Equit...
Source: Blood - November 21, 2018 Category: Hematology Authors: Kia, A., McIntosh, J., Rosales, C., Hosseini, P., Sheridan, R., Spiewak, J., Mills, K., Corbau, R., Nathwani, A. C. Tags: 801. Gene Therapy and Transfer: Poster I Source Type: research

MST1 Suppression Reduces Early Brain Injury by Inhibiting the NF- κB/MMP-9 Pathway after Subarachnoid Hemorrhage in Mice.
Conclusions: The current findings indicate that MST1 participates in SAH-induced BBB disruption and white matter fiber damage via the downstream NF-κB-MMP-9 signaling pathway. Therefore, MST1 antagonists may serve as a novel therapeutic target to prevent early brain injury in SAH patients. PMID: 30018671 [PubMed - in process]
Source: Behavioural Neurology - July 20, 2018 Category: Neurology Authors: Qu J, Zhao H, Li Q, Pan P, Ma K, Liu X, Feng H, Chen Y Tags: Behav Neurol Source Type: research

Preservation of interhemispheric cortical connections through corpus callosum following intravenous infusion of mesenchymal stem cells in a rat model of cerebral infarction.
Abstract Systemic administration of mesenchymal stem cells (MSCs) following cerebral infarction exerts functional improvements. Previous research has suggested potential therapeutic mechanisms that promote neuroprotection and synaptogenesis. These include secretion of neurotrophic factors, remodeling of neural circuits, restoration of the blood brain barrier, reduction of inflammatory infiltration and demyelination, and elevation of trophic factors. In addition to these mechanisms, we hypothesized that restored interhemispheric bilateral motor cortex connectivity might be an additional mechanism of functional reco...
Source: Brain Research - May 23, 2018 Category: Neurology Authors: Nagahama H, Nakazaki M, Sasaki M, Kataoka-Sasaki Y, Namioka T, Namioka A, Oka S, Onodera R, Suzuki J, Sasaki Y, Kocsis JD, Honmou O Tags: Brain Res Source Type: research

Neuroscience is the Next Oncology
by Michael D. Ehlers, MD, PhD Dr. Ehlers is with Biogen in Cambridge, Massachusetts. Innov Clin Neurosci. 2018;15(3–4):15–16 Funding: No funding was received for the preparation of this article. Disclosures: Dr. Ehlers is an employee and shareholder at Biogen Inc. in Cambridge, Massachusetts. Prominent and expensive failures in Alzheimer’s disease therapies have led to a contagious belief system in some parts of the biopharma industry that neuroscience is just too hard, too risky, and too uncertain. But, might this belief system itself be a residual bias of the past? Close inspection reveals all the signs of a coming...
Source: Innovations in Clinical Neuroscience - April 1, 2018 Category: Neuroscience Authors: ICNS Online Editor Tags: Commentary Current Issue Source Type: research

Adenoviruses-mediated RNA interference targeting cytosolic phospholipase A2 α attenuates focal ischemic brain damage in mice.
Adenoviruses-mediated RNA interference targeting cytosolic phospholipase A2α attenuates focal ischemic brain damage in mice. Mol Med Rep. 2018 Feb 15;: Authors: Wu H, Liu H, Zuo F, Zhang L Abstract Cerebral ischemia injury is a clinical, frequently occurring disease, which causes a heavy burden on society and families. It has been demonstrated that cytosolic phospholipase A2α (cPLA2α) is significant in neurological injury caused by ischemic brain injury, and inhibition of cPLA2α may reduce stroke injury. In the present study, the role of cPLA2α was investigated in a mouse model of middle cerebral...
Source: Molecular Medicine Reports - February 28, 2018 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

A Review of Mathematical Models for Muscular Dystrophy: A Systems Biology Approach
Discussion With new developments in computational power and data availability, a growing amount of research is using a systems biology approach to understand pathogenesis and progression of disease. Effective and integrated in vitro and in silico models could inform biological phenomena, even without the need of a living subject. For instance, over the last few decades, collagen hydrogel with muscle derived cells (CHMDCs) have promised to revolutionize in vitro experiments and tissue engineering. For CHMDCs to reach the envisioned use, verification by use of mathematical simulations are needed. Recently while examining sha...
Source: PLOS Currents Muscular Dystrophy - February 16, 2018 Category: Neurology Authors: Matthew Houston Source Type: research

Parvovirus B19 Infection in Children With Arterial Ischemic Stroke Brief Report
Conclusions—Using MassTag–polymerase chain reaction, we detected parvovirus B19—a virus known to infect erythrocytes and endothelial cells—in some cases of childhood arterial ischemic stroke. This approach can generate new, testable hypotheses about childhood stroke pathogenesis.
Source: Stroke - September 25, 2017 Category: Neurology Authors: Heather J. Fullerton, Jorge M. Luna, Max Wintermark, Nancy K. Hills, Rafal Tokarz, Ying Li, Carol Glaser, Gabrielle A. DeVeber, W. Ian Lipkin, Mitchell S.V. Elkind Tags: Pediatrics, Ischemic Stroke Brief Reports Source Type: research

Experimental cardiac radiation exposure induces ventricular diastolic dysfunction with preserved ejection fraction
Breast cancer radiotherapy increases the risk of heart failure with preserved ejection fraction (HFpEF). Cardiomyocytes are highly radioresistant, but radiation specifically affects coronary microvascular endothelial cells, with subsequent microvascular inflammation and rarefaction. The effects of radiation on left ventricular (LV) diastolic function are poorly characterized. We hypothesized that cardiac radiation exposure may result in diastolic dysfunction without reduced EF. Global cardiac expression of the sodium-iodide symporter (NIS) was induced by cardiotropic gene (adeno-associated virus serotype 9) delivery to 5-w...
Source: AJP: Heart and Circulatory Physiology - August 11, 2017 Category: Cardiology Authors: Saiki, H., Moulay, G., Guenzel, A. J., Liu, W., Decklever, T. D., Classic, K. L., Pham, L., Chen, H. H., Burnett, J. C., Russell, S. J., Redfield, M. M. Tags: RESEARCH ARTICLE Source Type: research

ADAMTS13 controls vascular remodeling by modifying VWF reactivity during stroke recovery
Angiogenic response is essential for ischemic brain repair. The von Willebrand factor (VWF)–cleaving protease disintegrin and metalloprotease with thrombospondin type I motif, member 13 (ADAMTS13) is required for endothelial tube formation in vitro, but there is currently no in vivo evidence supporting a function of ADAMTS13 in angiogenesis. Here we show that mice deficient in ADAMTS13 exhibited reduced neovascularization, brain capillary perfusion, pericyte and smooth muscle cell coverage on microvessels, expression of the tight junction and basement membrane proteins, and accelerated blood-brain barrier (BBB) break...
Source: Blood - July 6, 2017 Category: Hematology Authors: Xu, H., Cao, Y., Yang, X., Cai, P., Kang, L., Zhu, X., Luo, H., Lu, L., Wei, L., Bai, X., Zhu, Y., Zhao, B.-Q., Fan, W. Tags: Plenary Papers, Thrombosis and Hemostasis, Vascular Biology Source Type: research

A BAG3 Coding Variant in Mice Determines Susceptibility to Ischemic Limb Muscle Myopathy by Directing Autophagy.
Conclusions -Taken together, our data demonstrate that genetic variation in BAG3 plays an important role in the prevention of ischemic tissue necrosis. These results highlight a pathway that preserves tissue survival and muscle function in the setting of ischemia. PMID: 28442482 [PubMed - as supplied by publisher]
Source: Circulation - April 25, 2017 Category: Cardiology Authors: McClung JM, McCord TJ, Ryan TE, Schmidt CA, Green TD, Southerland KW, Reinardy JL, Mueller SB, Venkatraman TN, Lascola CD, Keum S, Marchuk DA, Spangenburg EE, Dokun AO, Annex BH, Kontos CD Tags: Circulation Source Type: research

Effect of combined VEGF165/SDF-1 gene therapy on vascular remodeling and blood perfusion in cerebral ischemia.
CONCLUSIONS Combined VEGF165 and SDF-1 gene therapy represents a potential strategy for improving vascular remodeling and recovery of neural function after cerebral infarction. PMID: 27982773 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery - December 16, 2016 Category: Neurosurgery Authors: Hu GJ, Feng YG, Lu WP, Li HT, Xie HW, Li SF Tags: J Neurosurg Source Type: research

Peroxisome Proliferator-Activated Receptor {beta}/{delta} Alleviates Early Brain Injury After Subarachnoid Hemorrhage in Rats Basic Sciences
Conclusions— PPARβ/’s overexpression may attenuate early brain injury after rats’ SAH administration, which reduces neural apoptosis possibly through blocking NF-B/MMP-9 pathway.
Source: Stroke - December 28, 2015 Category: Neurology Authors: Teng, Z., Jiang, L., Hu, Q., He, Y., Guo, Z., Wu, Y., Huang, Z., Cao, F., Cheng, C., Sun, X., Guo, Z. Tags: Animal Models of Human Disease, Cell Signaling/Signal Transduction, Cerebrovascular Disease/Stroke Basic Sciences Source Type: research

Neuron-Specific Tumor Necrosis Factor Receptor-Associated Factor 3 Is a Central Regulator of Neuronal Death in Acute Ischemic Stroke Nervous System
Neuronal death after ischemic stroke involves multiple pathophysiological events, as well as a complex molecular mechanism. Inhibiting a single therapeutic target that is involved in several ischemic signaling cascades may be a promising strategy for stroke management. Here, we report the versatile biological roles of tumor necrosis factor receptor–associated factor 3 (TRAF3) in ischemic stroke. Using several genetically manipulated mouse strains, we also demonstrated that TRAF3 inhibition can be neuroprotective. TRAF3 expression, which is robustly induced in response to ischemia/reperfusion (I/R) injury, was detecte...
Source: Hypertension - August 12, 2015 Category: Cardiology Authors: Gong, J., Li, Z.-Z., Guo, S., Zhang, X.-J., Zhang, P., Zhao, G.-N., Gao, L., Zhang, Y., Zheng, A., Zhang, X.-F., Xiang, M., Li, H. Tags: Apoptosis, Ischemic biology - basic studies, Acute Cerebral Infarction, Oxidant stress Nervous System Source Type: research

SOD1 overexpression prevents acute hyperglycemia-induced cerebral myogenic dysfunction: relevance to contralateral hemisphere and stroke outcomes
In conclusion, our results show that SOD1 overexpression nullified the detrimental effects of HG on myogenic tone and stroke outcomes and that the contralateral hemisphere may be a novel target for the management of acute hyperglycemic stroke.
Source: AJP: Heart and Circulatory Physiology - March 1, 2015 Category: Cardiology Authors: Coucha, M., Li, W., Hafez, S., Abdelsaid, M., Johnson, M. H., Fagan, S. C., Ergul, A. Tags: INTEGRATIVE CARDIOVASCULAR PHYSIOLOGY AND PATHOPHYSIOLOGY Source Type: research

Stem Cell Factor Gene Transfer Improves Cardiac Function After Myocardial Infarction in Swine Original Articles
Conclusions— Local overexpression of SCF post-MI induces the recruitment of c-kit+ cells at the infarct border area acutely. In the chronic stages, SCF gene transfer was associated with improved cardiac function in a preclinical model of ischemic cardiomyopathy.
Source: Circulation: Heart Failure - January 20, 2015 Category: Cardiology Authors: Ishikawa, K., Fish, K., Aguero, J., Yaniz-Galende, E., Jeong, D., Kho, C., Tilemann, L., Fish, L., Liang, L., Eltoukhy, A. A., Anderson, D. G., Zsebo, K., Costa, K. D., Hajjar, R. J. Tags: Angiogenesis, Myogenesis, Other Treatment, Acute myocardial infarction Original Articles Source Type: research

SOD1 Overexpression Prevents Acute Hyperglycemia-Induced Cerebral Myogenic Dysfunction: Relevance to Contralateral Hemisphere and Stroke Outcomes.
Conclusion: Our results showed that SOD1 overexpression nullified the detrimental effects of HG on myogenic tone and stroke outcomes, and that contralateral hemisphere may be a novel target for the management of acute hyperglycemic stroke. PMID: 25552308 [PubMed - as supplied by publisher]
Source: American Journal of Physiology. Heart and Circulatory Physiology - December 31, 2014 Category: Physiology Authors: Coucha M, Li W, Hafez S, Abdelsaid M, Johnson MH, Fagan SC, Ergul A Tags: Am J Physiol Heart Circ Physiol Source Type: research