Filtered By:
Source: Translational Stroke Research
This page shows you your search results in order of date. This is page number 8.
Order by Relevance | Date
Total 861 results found since Jan 2013.
A Genome-Wide Association Study of Outcome After Aneurysmal Subarachnoid Haemorrhage: Discovery Analysis
AbstractCandidate gene studies have identified genetic variants associated with clinical outcomes following aneurysmal subarachnoid haemorrhage (aSAH), but no genome-wide association studies have been performed to date. Here we report the results of the discovery phase of a two-stage genome-wide meta-analysis of outcome after aSAH. We identified 157 independent loci harbouring 756 genetic variants associated with outcome after aSAH (p < 1 × 10−4), which require validation. A single variant (rs12949158), inSPNS2, achieved genome-wide significance (p = 4.29 × 10−8) implicating sphingosine-1-phosphat...
Source: Translational Stroke Research - October 20, 2022 Category: Neurology Source Type: research
Associations Between Drug Treatments and the Risk of Aneurysmal Subarachnoid Hemorrhage: a Systematic Review and Meta-analysis
AbstractThere is increasing interest in drug therapy for preventing aneurysmal subarachnoid hemorrhage (aSAH). We aimed to comprehensively evaluate the association between drug use and the risk of aSAH. We searched PubMed and Scopus from the databases ’ inception until December 2021. Observational studies reporting the association between any drug therapy and aSAH were included. The odds ratios (ORs) for each drug used in aSAH were meta-analyzed with a random-effect model. According to the systematic review, 25 observational studies were eligib le for the present study. Four therapeutic purpose-based classes (e.g., lipid...
Source: Translational Stroke Research - October 15, 2022 Category: Neurology Source Type: research
A New Paradigm for Neuroprotection Clinical Trials for Acute Ischemic Stroke
Source: Translational Stroke Research - October 11, 2022 Category: Neurology Source Type: research
Reinventing the Penumbra — the Emerging Clockwork of a Multi-modal Mechanistic Paradigm
AbstractThe concept of the ischemic penumbra was originally defined as the area around a necrotic stroke core and seen as the tissue at imminent risk of further damage. Today, the penumbra is generally considered as time-sensitive hypoperfused brain tissue with decreased oxygen and glucose availability, salvageable tissue as treated by intervention, and the potential target for neuroprotection in focal stroke. The original concept entailed electrical failure and potassium release but one short of neuronal cell death and was based on experimental stroke models, later confirmed in clinical imaging studies. However, even thou...
Source: Translational Stroke Research - October 11, 2022 Category: Neurology Source Type: research
cPKC γ-Modulated Autophagy Contributes to Ischemic Preconditioning–Induced Neuroprotection in Mice with Ischemic Stroke via mTOR-ULK1 Pathway
In this study, adult and postnatal 1-day-old C57BL/6 J wild -type (cPKCγ+/+) and knockout (cPKC γ−/−) mice were used to establish in vivo and in vitro IPC models. The results showed that IPC pretreatment alleviated neuronal damage caused by lethal ischemia, which could be suppressed by autophagy inhibitor 3-MA or bafilomycin A1. Meanwhile, cPKC γ knockout blocked IPC-induced neuroprotection, accompanied by significant increase of LC3-I to LC3-II conversion and Beclin 1 protein level, and a significant decrease in p62 protein level. Immunofluorescent staining results showed a decrease of LC3 puncta numbers in IPC-tr...
Source: Translational Stroke Research - October 10, 2022 Category: Neurology Source Type: research
Elevated Serum Ninjurin-1 Is Associated with a High Risk of Large Artery Atherosclerotic Acute Ischemic Stroke
AbstractNinjurin-1 is a novel adhesion molecule which is involved in many inflammatory diseases. Functional blockage of Ninjurin-1 has exerted an atheroprotective effect. The aim of the study is to explore the association between serum Ninjurin-1 and the risk of large artery atherosclerotic acute ischemic stroke. From August 2020 through December 2021, patients with large artery atherosclerotic acute ischemic stroke (LAA-AIS) admitted to the First Hospital Affiliated to Soochow University, and age- and sex-matched controls free of ischemic stroke were recruited. Serum Ninj1 was measured with an enzyme-linked immunosorbent ...
Source: Translational Stroke Research - October 7, 2022 Category: Neurology Source Type: research
Melatonin Offers Dual-Phase Protection to Brain Vessel Endothelial Cells in Prolonged Cerebral Ischemia-Recanalization Through Ameliorating ER Stress and Resolving Refractory Stress Granule
We report that melatonin treatment downregulates ER stress in the ischemic period and enhances dissociation of t he refractory SGs during reperfusion, thus offering dual-phase protection to BVECs in prolonged cerebral stroke. Mechanistically, melatonin enhances autophagy in BVECs, which preserves ER function and resolves refractory SGs. We, therefore, propose that melatonin is a potential treatment to extend t he time window of delayed recanalization therapy in AIS.
Source: Translational Stroke Research - October 1, 2022 Category: Neurology Source Type: research
Endothelial Cell –Derived Let-7c-Induced TLR7 Activation on Smooth Muscle Cell Mediate Vascular Wall Remodeling in Moyamoya Disease
AbstractMoyamoya disease (MMD) is characterized by frequent migration and phenotypic transformation of vascular smooth muscle cells (VSMCs) in the intima layer of blood vessels. However, the underlying mechanism is unclear. Toll-like receptor (TLR) 7 is abundantly expressed in smooth muscle cells (SMCs) in multiple vascular diseases, which might be linked to the disease-associated vascular remodeling. In the present study, the expression of TLR7 in MMD vessels was examined using the superficial temporal artery (STA) and middle cerebral artery (MCA) from MMD patients. Furthermore, the effect of TLR7 activation on the VSMC p...
Source: Translational Stroke Research - October 1, 2022 Category: Neurology Source Type: research
Dental Pulp Stem Cell-Derived Conditioned Medium Alleviates Subarachnoid Hemorrhage-Induced Microcirculation Impairment by Promoting M2 Microglia Polarization and Reducing Astrocyte Swelling
This study aimed to investigate whether dental pulp stem cell conditioned medium (DPSC-CM) ameliorates SAH-induced microcirculation impairment and the underlying mechanisms. SAH was induced via intrathecal injection of fresh autologous blood in Wistar male adult rat. DPSC-CM or DPSC-CM + insulin growth factor-1 (IGF-1) antibody was randomly administered by intrathecal route 5 min after SAH induction. To evaluate the underlying mechanisms of DPSC-CM in the treatment of SAH, primary rat astrocyte and microglia co-cultures were challenged with hemolysate or SAH-patient CSF in t he presence or absence of DPSC-CM. The res...
Source: Translational Stroke Research - October 1, 2022 Category: Neurology Source Type: research
GPR39 Knockout Worsens Microcirculatory Response to Experimental Stroke in a Sex-Dependent Manner
AbstractNo current treatments target microvascular reperfusion after stroke, which can contribute to poor outcomes even after successful clot retrieval. The G protein –coupled receptor GPR39 is expressed in brain peri-capillary pericytes, and has been implicated in microvascular regulation, but its role in stroke is unknown. We tested the hypothesis that GPR39 plays a protective role after stroke, in part due to preservation of microvascular perfusion. We gener ated GPR39 knockout (KO) mice and tested whether GPR39 gene deletion worsens capillary blood flow and exacerbates brain injury and functional deficit after focal ...
Source: Translational Stroke Research - October 1, 2022 Category: Neurology Source Type: research
Correction to: Recombinant Adiponectin Peptide Ameliorates Brain Injury Following Intracerebral Hemorrhage by Suppressing Astrocyte-Derived Inflammation via the Inhibition of Drp1-Mediated Mitochondrial Fission
Source: Translational Stroke Research - September 28, 2022 Category: Neurology Source Type: research
Ischemic Preconditioning Alleviates Cerebral Ischemia –Reperfusion Injury by Interfering With Glycocalyx
This study found that (1) IPC improved brain infarction and edema, neurological impai rment, and BBB disruption in IRI rats; (2) IPC significantly up-regulated HA ratio and down-regulated HS ratio, but did not affect SYND1 ratio compared with the IRI group. Moreover, the increased HA ratio was negatively related to brain edema and neurological deficit score. (3) IPC affected HA metab olism by up-regulating hyaluronate synthase-1 and matrix metalloproteinase-2, and down-regulating hyaluronidase-1 in brain tissue. Together, this is the first report that the neuroprotective effect of IPC on IRI may be mediated through interfe...
Source: Translational Stroke Research - September 28, 2022 Category: Neurology Source Type: research
Correction to: The Woven EndoBridge (WEB) Device for the Treatment of Intracranial Aneurysms: Ten Years of Lessons Learned and Adjustments in Practice from the WorldWideWEB Consortium
Source: Translational Stroke Research - September 27, 2022 Category: Neurology Source Type: research
Correction to: Endogenous Neural Stem Cell –induced Neurogenesis after Ischemic Stroke: Processes for Brain Repair and Perspectives
Source: Translational Stroke Research - September 21, 2022 Category: Neurology Source Type: research
Translating Animal Models of Ischemic Stroke to the Human Condition
AbstractIschemic stroke is a leading cause of death and disability. However, very few neuroprotective agents have shown promise for treatment of ischemic stroke in clinical trials, despite showing efficacy in many successful preclinical studies. This may be attributed, at least in part, to the incongruency between experimental animal stroke models used in preclinical studies and the manifestation of ischemic stroke in humans. Most often the human population selected for clinical trials are more diverse than the experimental model used in a preclinical study. For successful translation, it is critical to develop clinical tr...
Source: Translational Stroke Research - September 20, 2022 Category: Neurology Source Type: research
