Dual-modality imaging of endothelial progenitor cells transplanted after ischaemic photothrombotic stroke

Publication date: Available online 2 November 2019Source: Life SciencesAuthor(s): Jie Ding, Yi Zhang, Cong-Xiao Wang, Pei-Cheng Li, Zhen Zhao, Chao Wang, Gao-Jun TengAbstractAimsStroke is a refractory cerebral blood circulation disorder. Endothelial progenitor cells (EPCs) participate in the repair and regeneration of vascular injury through the combination of cell replacement and bystander effects. Here, we evaluated the biological function of EPCs in treating a mouse model of cerebral ischaemic stroke, using dual-mode bioluminescence and magnetic resonance imaging to trace EPCs in vivo.Main methodsWe constructed a viral vector with a luciferase-enhanced green fluorescent protein (Luc-eGFP) reporter gene for bioluminescence imaging (BLI) detection, and simultaneously synthesized the magnetic resonance imaging (MRI) contrast agent, nano-sized superparamagnetic iron oxide (USPIO), to co-label human umbilical cord blood-derived EPCs (hEPCs). The labelled hEPCs were transplanted into mice with stroke, and the biological behaviours of the cells in-vivo were studied using BLI and MRI, and methods of molecular biology and histology.Key findingsComparing the two cell transplantation routes by BLI confirmed that many cells transplanted via the left ventricular route homed to ischaemic brain tissue. The dual-modality-imaging showed the prognosis of in-vivo tracking cells after transplantation in ischaemic tissues at different time points. Histological staining and neurological functio...
Source: Life Sciences - Category: Biology Source Type: research

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Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Authors: Leebeek FWG, Muslem R Abstract Chronic heart failure (HF) is a growing health problem, and it is associated with high morbidity and mortality. Left ventricular assist devices (LVADs) are nowadays an important treatment option for patients with end-stage HF not only as a bridging tool to heart transplantation but also, as a permanent therapy for end-stage HF (destination therapy). The use of LVAD is associated with a high risk for bleeding complications and thromboembolic events, including pump thrombosis and ischemic stroke. Bleeding is the most frequent complication, occurring in 30% to 60% of patients, b...
Source: Hematology ASH Education Program - Category: Hematology Tags: Hematology Am Soc Hematol Educ Program Source Type: research
Publication date: Available online 6 December 2019Source: Chemico-Biological InteractionsAuthor(s): Chaosheng Zeng, Desheng Wang, Cong Chen, Lin Chen, Bocan Chen, Li Li, Min Chen, Huaijie XingAbstractStroke has been considered the second leading cause of death worldwide, and ischemic stroke accounts for the vast majority of stroke cases. Some of the main features of ischemic stroke are increased brain permeability, ischemia/reperfusion injury, oxidative stress, and acute inflammation. Antagonism of cysLT1R has been shown to provide cardiovascular and neural benefits. In the present study, we investigated the effects of the...
Source: Chemico Biological Interactions - Category: Biochemistry Source Type: research
ConclusionThis may be achieved through adoption of stringent air pollution regulations and sustainable city planning. Increase in urban green infrastructures and improving road transportation will reduce PM2.5 levels in urban environment, thereby safeguarding human health from air pollution and improving citizens’ well-being.
Source: Clinical Epidemiology and Global Health - Category: Epidemiology Source Type: research
Conclusion: The IRR of the French PSOM-SOI gave variable results depending on the item and rater’s experience, but the extent of disagreements was minor for individual items and total score. Additional prospective validation studies using the French PSOM-Short Neurological Exam to score the PSOM-SOI are needed. A dichotomized total score (cutoff ≤ 0.5) could be used to define normal function versus poor outcome.
Source: Annals of Physical and Rehabilitation Medicine - Category: Rehabilitation Source Type: research
Conclusions: Stroke is uncommon in cirrhotic patients. However, considering a positive relationship of liver cirrhosis with subarachnoid and intracranial hemorrhage, the prophylactic strategy may be selectively adopted in cirrhotic patients.
Source: Journal of Clinical Gastroenterology - Category: Gastroenterology Tags: LIVER, PANCREAS & BILIARY TRACT: Original Articles Source Type: research
It is not known if risk factors differ between ischemic stroke (IS) subtypes in Central and Eastern Europe.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
Conditions:   Stroke, Ischemic;   Cardiovascular Risk Factor;   Cardiovascular Diseases;   Cardiovascular Morbidity Intervention:   Sponsor:   University of Thessaly Completed
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
CONCLUSION: Berberine treatment improved short-term memory in hyperlipidemia by increasing neuronal proliferation and inhibiting neuronal apoptosis. Berberine treatment also improved lipid metabolism. PMID: 31795609 [PubMed]
Source: International Neurourology Journal - Category: Urology & Nephrology Tags: Int Neurourol J Source Type: research
Ischemic stroke is a leading cause of disability worldwide and characteristically accompanied by downregulation of the Wnt/ β-catenin signaling. Activation of Wnt/β-catenin signaling emerges to attenuate neuroi...
Source: Journal of Neuroinflammation - Category: Neurology Authors: Tags: Research Source Type: research
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