Filtered By:
Procedure: MRI Scan
Therapy: Stem Cell Therapy

This page shows you your search results in order of relevance.

Order by Relevance | Date

Total 79 results found since Jan 2013.

Human Neural Stem Cell Extracellular Vesicles Improve Recovery in a Porcine Model of Ischemic Stroke Basic Sciences
Conclusions—This study demonstrated for the first time that in a large animal model novel NSC EVs significantly improved neural tissue preservation and functional levels post-MCAO, suggesting NSC EVs may be a paradigm changing stroke therapeutic.
Source: Stroke - April 23, 2018 Category: Neurology Authors: Robin L. Webb, Erin E. Kaiser, Brian J. Jurgielewicz, Samantha Spellicy, Shelley L. Scoville, Tyler A. Thompson, Raymond L. Swetenburg, David C. Hess, Franklin D. West, Steven L. Stice Tags: Animal Models of Human Disease, Basic Science Research, Translational Studies, Treatment, Ischemic Stroke Original Contributions Source Type: research

Poststroke Sonic Hedgehog Agonist Treatment Improves Functional Recovery by Enhancing Neurogenesis and Angiogenesis Basic Sciences
Conclusions—These data confirm an important role for the hedgehog pathway in poststroke brain repair and functional recovery, suggesting a prolonged treatment window for potential treatment strategy to modulate sonic hedgehog pathway after stroke.
Source: Stroke - May 22, 2017 Category: Neurology Authors: Yongming Jin, Austin Barnett, Yifan Zhang, Xin Yu, Yu Luo Tags: Cerebrovascular Disease/Stroke, Cognitive Impairment, Ischemic Stroke, Neurogenesis Original Contributions Source Type: research

Stroke: Highlights of Selected Articles Stroke: Highlights of Selected Articles
Source: Stroke - June 26, 2016 Category: Neurology Tags: Stem Cells, Magnetic Resonance Imaging (MRI), Quality and Outcomes, Ischemic Stroke, Thrombosis Stroke: Highlights of Selected Articles Source Type: research

Multinuclear MRI Reveals Early Efficacy of Stem Cell Therapy in Stroke
AbstractCompromised adult human mesenchymal stem cells (hMSC) can impair cell therapy efficacy and further reverse ischemic recovery. However, in vitro assays require extended passage to characterize cells, limiting rapid assessment for therapeutic potency. Multinuclear magnetic resonance imaging and spectroscopy (MRI/S) provides near real-time feedback on disease progression and tissue recovery. Applied to ischemic stroke,23Na MRI evaluates treatment efficacy within 24  h after middle cerebral artery occlusion, showing recovery of sodium homeostasis and lesion reduction in specimens treated with hMSC while1H MRS identifi...
Source: Translational Stroke Research - July 28, 2022 Category: Neurology Source Type: research

Stroke Dysbiosis Index (SDI) in Gut Microbiome Are Associated With Brain Injury and Prognosis of Stroke
Conclusions: We developed an index to measure gut microbiota dysbiosis in stroke patients; this index was significantly correlated with patients' outcome and was causally related to outcome in a mouse model of stroke. Our model facilitates the potential clinical application of gut microbiota data in stroke and adds quantitative evidence linking the gut microbiota to stroke. Introduction Ischemic stroke imposes a heavy burden on society, with 24.9 million cases worldwide (1). Although intravenous thrombolysis and endovascular treatment greatly improve some patients' prognosis, the prognosis for most pa...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

Stem cell transplantation for ischemic stroke.
CONCLUSIONS: Overall, in participants with ischemic stroke, stem cell transplantation was associated with a reduced neurological impairment, but not with a better functional outcome. No obvious safety concerns were raised. However, these conclusions came mostly from small RCTs with high risk of bias, and the certainty of the evidence ranged from low to very low. More well-designed trials are needed. PMID: 31055832 [PubMed - as supplied by publisher]
Source: Cochrane Database of Systematic Reviews - May 4, 2019 Category: General Medicine Authors: Boncoraglio GB, Ranieri M, Bersano A, Parati EA, Del Giovane C Tags: Cochrane Database Syst Rev Source Type: research

Contralaterally transplanted human embryonic stem cell-derived neural precursor cells (ENStem-A) migrate and improve brain functions in stroke-damaged rats.
In this study, we investigated the fates of human embryonic stem cell (hESC)-derived NPCs (ENStem-A) for 8 weeks following transplantation into the side contralateral to the infarct region using 7.0T animal magnetic resonance imaging (MRI). T2- and T2*-weighted MRI analyses indicated that the migrating cells were clearly detectable at the infarct boundary zone by 1 week, and the intensity of the MRI signals robustly increased within 4 weeks after transplantation. Afterwards, the signals were slightly increased or unchanged. At 8 weeks, we performed Prussian blue staining and immunohistochemical staining using human-specifi...
Source: exp Mol Med - November 19, 2013 Category: Molecular Biology Authors: Chang DJ, Oh SH, Lee N, Choi C, Jeon I, Kim HS, Shin DA, Lee SE, Kim D, Song J Tags: Exp Mol Med Source Type: research

Aggregation of human mesenchymal stem cells enhances survival and efficacy in stroke treatment
In this study, we report the effects of short-term preconditioning of hMSCs via three-dimensional (3D) aggregation on stroke lesion recovery after intra-arterial (IA) transplantation of 3D aggregate-derived hMSCs (Agg-D hMSCs) in a transient middle cerebral artery occlusion (MCAO) stroke model. Compared with two-dimensional (2D) monolayer culture, Agg-D hMSCs exhibited increased resistance to ischemic stress, secretory function and therapeutic outcome. Short-term preconditioning via 3D aggregation reconfigured hMSC energy metabolism and altered redox cycle, which activated the PI3K/AKT pathway and enhanced resistance to in...
Source: Cytotherapy - September 17, 2019 Category: Cytology Source Type: research

Infarct-preconditioning exosomes of umbilical cord mesenchymal stem cells promoted vascular remodeling and neurological recovery after stroke in rats
CONCLUSIONS: Our results demonstrated that infarct-preconditioned exosomes promoted neurological recovery after stroke by enhancing vascular endothelial remodeling, suggested that infarct-preconditioned exosomes could be a novel way to alleviate brain damage following a stroke.PMID:35902882 | DOI:10.1186/s13287-022-03083-9
Source: Cell Research - July 28, 2022 Category: Cytology Authors: Yi-Chao Ye Zhe-Han Chang Peng Wang You-Wei Wang Jun Liang Chong Chen Jing-Jing Wang Hong-Tao Sun Yi Wang Xiao-Hong Li Source Type: research

GABAergic neurons differentiated from BDNF- and Dlx2-modified neural stem cells restore disrupted neural circuits in brainstem stroke
CONCLUSIONS: These findings demonstrated that BDNF- and Dlx2-modified NSCs differentiated into GABAergic neurons, integrated into and reconstituted the host neural networks, and alleviated the ischemic injury. It thus provided a potential therapeutic strategy for brainstem stroke.PMID:37365654 | DOI:10.1186/s13287-023-03378-5
Source: Cell Research - June 26, 2023 Category: Cytology Authors: Xiangyue Tang Li Wu Juehua Zhu Mindong Xu Shaojun Li Guanfeng Zeng Shuanggen Zhu Yongjun Jiang Source Type: research

Biohybrids of scaffolding hyaluronic acid biomaterials plus adipose stem cells home local neural stem and endothelial cells: Implications for reconstruction of brain lesions after stroke
AbstractEndogenous neurogenesis in stroke is insufficient to replace the lost brain tissue, largely due to the lack of a proper biological structure to let new cells dwell in the damaged area. We hypothesized that scaffolds made of hyaluronic acid (HA) biomaterials (BM) could provide a suitable environment to home not only new neurons, but also vessels, glia and neurofilaments. Further, the addition of exogenous cells, such as adipose stem cells (ASC) could increase this effect. Athymic mice were randomly assigned to a one of four group: stroke alone, stroke and implantation of BM, stroke and implantation of BM with ASC, a...
Source: Journal of Biomedical Materials Research Part B: Applied Biomaterials - October 11, 2018 Category: Materials Science Authors: Leyre Sanchez ‐Rojas, Ulises Gómez‐Pinedo, María Soledad Benito‐Martin, Gonzalo León‐Espinosa, Fernando Rascón‐Ramirez, Cristina Lendinez, Cristina Martínez‐Ramos, Jorge Matías‐Guiu, Manuel Monleón Pradas, Juan A. Barcia Tags: Original Research Report Source Type: research

A multi-modality platform to image stem cell graft survival in the naïve and stroke-damaged mouse brain.
Abstract Neural stem cell implantations have been extensively investigated for treatment of brain diseases such as stroke. In order to follow the localization and functional status of cells after implantation noninvasive imaging is essential. Therefore, we developed a comprehensive multi-modality platform for in vivo imaging of graft localization, density, and survival using 19F magnetic resonance imaging in combination with bioluminescence imaging. We quantitatively analyzed cell graft survival over the first 4 weeks after transplantation in both healthy and stroke-damaged mouse brain and correlated our findings...
Source: Biomaterials - December 16, 2013 Category: Materials Science Authors: Boehm-Sturm P, Aswendt M, Minassian A, Michalk S, Mengler L, Adamczak J, Mezzanotte L, Löwik C, Hoehn M Tags: Biomaterials Source Type: research

A two-year follow-up study of co-transplantation with neural stem/precursor cells and mesenchymal stromal cells in ischemic stroke patients.
Abstract Stem cell therapy is an emerging therapeutic modality in the treatment of stroke. We assessed the safety and feasibility of the co-transplantation of neural stem/precursor cells (NSPCs) and mesenchymal stromal cells (MSCs) in patients with ischemic stroke. Eight patients were enrolled in this study. All patients had a hemisphere with infarct lesions located on one side of the territories of the cerebral middle or anterior arteries as revealed with cranial magnetic resonance imaging (MRI). The patients received one of the following two types of treatment: the first treatment involved 4 intravenous injectio...
Source: Cell Transplantation - October 20, 2014 Category: Cytology Authors: Qiao LY, Huang FJ, Zhao M, Xie JH, Shi J, Wang J, Lin XZ, Zuo H, Wang YL, Geng TC Tags: Cell Transplant Source Type: research

A Novel Rat Model of Embolic Cerebral Ischemia Using a Cell-Implantable Radiopaque Hydrogel Microfiber
We present a novel rat model of focal infarct restricted to the middle cerebral artery territory using a radiopaque hydrogel microfiber positioned under fluoroscopic guidance. By comparing the use of stem cell-containing versus non-containing fibers in this stroke model, it would be possible to determine the efficacy of"pure" cell transplantation in treating stroke.
Source: Translational Stroke Research - March 3, 2023 Category: Neurology Source Type: research

Transcranial direct current stimulation accelerates recovery of function, induces neurogenesis and recruits oligodendrocyte precursors in a rat model of stroke.
CONCLUSIONS: TDCS acts through multifaceted mechanisms that far exceed its primary neurophysiological effects, encompassing proliferation and migration of stem cells, their neuronal differentiation, and modulation of microglia responses. PMID: 26923911 [PubMed - as supplied by publisher]
Source: Experimental Neurology - February 25, 2016 Category: Neurology Authors: Braun R, Klein R, Walter HL, Ohren M, Freudenmacher L, Getachew K, Ladwig A, Luelling J, Neumaier B, Endepols H, Graf R, Hoehn M, Fink GR, Schroeter M, Rueger MA Tags: Exp Neurol Source Type: research