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Source: JAHA:Journal of the American Heart Association

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Total 381 results found since Jan 2013.

The TLR9 Ligand, CpG-ODN, Induces Protection against Cerebral Ischemia/Reperfusion Injury via Activation of PI3K/Akt Signaling Stroke
Conclusion CpG-ODN significantly reduces cerebral I/R injury via a PI3K/Akt-dependent mechanism. Our data also indicate that CpG-ODN may be useful in the therapy of cerebral I/R injury.
Source: JAHA:Journal of the American Heart Association - April 10, 2014 Category: Cardiology Authors: Lu, C., Ha, T., Wang, X., Liu, L., Zhang, X., Kimbrough, E. O., Sha, Z., Guan, M., Schweitzer, J., Kalbfleisch, J., Williams, D., Li, C. Tags: Stroke Source Type: research

Risk Factors Associated With Cerebrovascular Recurrence in Symptomatic Carotid Disease: A Comparative Study of Carotid Plaque Morphology, Microemboli Assessment and the European Carotid Surgery Trial Risk Model Stroke
Conclusions The presence of carotid plaque hemorrhage is better associated with recurrent cerebrovascular events in patients with symptomatic severe carotid stenosis than the presence of microembolic signals; combining MES and MRIPH, further improves the association while the ECST risk score was insignificant.
Source: JAHA:Journal of the American Heart Association - June 3, 2014 Category: Cardiology Authors: Altaf, N., Kandiyil, N., Hosseini, A., Mehta, R., MacSweeney, S., Auer, D. Tags: Stroke Source Type: research

HDL-3 is a Superior Predictor of Carotid Artery Disease in a Case-Control Cohort of 1725 Participants Stroke
Conclusions This study is the first to contrast the associations of HDL-2 and HDL-3 with CAAD. We found that HDL-3 levels were more predictive of CAAD status than HDL-2, HDL-C, or apolipoprotein A1. In addition, for men, paraoxonase 1 activity improved the overall model prediction for CAAD independently and additively with HDL-3 levels. Further investigation into the molecular mechanisms through which HDL-3 is associated with protection from CAAD is warranted.
Source: JAHA:Journal of the American Heart Association - June 25, 2014 Category: Cardiology Authors: Kim, D. S., Burt, A. A., Rosenthal, E. A., Ranchalis, J. E., Eintracht, J. F., Hatsukami, T. S., Furlong, C. E., Marcovina, S., Albers, J. J., Jarvik, G. P. Tags: Stroke Source Type: research

Adult Moyamoya Disease in an Urban Center in the United States Is Associated With a High Burden of Watershed Ischemia Stroke
Conclusions We observed a high burden of ischemia, mostly watershed pattern on neuroimaging in our adult moyamoya disease patients. Long-term monitoring of adult moyamoya disease patients in the United States would be useful to better understand the natural history of this condition.
Source: JAHA:Journal of the American Heart Association - July 18, 2014 Category: Cardiology Authors: Zafar, S. F., Bershad, E. M., Gildersleeve, K. L., Newmark, M. E., Calvillo, E., Suarez, J. I., Venkatasubba Rao, C. P. Tags: Stroke Source Type: research

Impact of Heme and Heme Degradation Products on Vascular Diameter in Mouse Visual Cortex Stroke
Conclusions We identified individual components of the oxidative bilirubin degradation that led to vasoconstriction of cerebral arterioles. The vasoconstrictive effect of Z-BOX A and Z-BOX B was mediated by BKCa channel activity that might represent a signaling pathway in the occurrence of delayed cerebral vasospasm in subarachnoid hemorrhage patients.
Source: JAHA:Journal of the American Heart Association - August 28, 2014 Category: Cardiology Authors: Joerk, A., Seidel, R. A., Walter, S. G., Wiegand, A., Kahnes, M., Klopfleisch, M., Kirmse, K., Pohnert, G., Westerhausen, M., Witte, O. W., Holthoff, K. Tags: Stroke Source Type: research

Circulating microRNAs Serve as Novel Biological Markers for Intracranial Aneurysms Stroke
Conclusions Our data suggest that circulating miRNAs may be novel biological markers that are useful in assessing the likelihood of IA occurrence.
Source: JAHA:Journal of the American Heart Association - September 23, 2014 Category: Cardiology Authors: Li, P., Zhang, Q., Wu, X., Yang, X., Zhang, Y., Li, Y., Jiang, F. Tags: Stroke Source Type: research

Declining Rates of Fatal and Nonfatal Intracerebral Hemorrhage: Epidemiological Trends in Australia Stroke
Conclusions Overall and fatal ICH rates have fallen in this large Australian population. Improvements in cardiovascular prevention and acute care may explain declining rates. There was no evidence of an increase in devastated survivors because the longer term mortality of 30-day survivors has not increased over time.
Source: JAHA:Journal of the American Heart Association - December 8, 2014 Category: Cardiology Authors: Gattellari, M., Goumas, C., Worthington, J. Tags: Stroke Source Type: research

Management of Vascular Risk Factors in the Carotid Revascularization Endarterectomy Versus Stenting Trial (CREST) Stroke
Conclusions Site-based risk-factor control improved significantly in the first 6 months and over the long term in CREST but was often suboptimal. Intensive medical management should be considered for future trials of carotid revascularization. Clinical Trial Registration URL: ClinicalTrials.gov. Unique identifier: NCT00004732.
Source: JAHA:Journal of the American Heart Association - November 26, 2014 Category: Cardiology Authors: Meschia, J. F., Voeks, J. H., Leimgruber, P. P., Mantese, V. A., Timaran, C. H., Chiu, D., Demaerschalk, B. M., Howard, V. J., Hughes, S. E., Longbottom, M., Howard, A. G., Brott, T. G. Tags: Stroke Source Type: research

Traumatic Brain Injury Disrupts Cerebrovascular Tone Through Endothelial Inducible Nitric Oxide Synthase Expression and Nitric Oxide Gain of Function Stroke
Conclusions The mechanism of profound cerebral artery vasodilation after TBI is a gain of function in vascular NO production by 60-fold over controls, resulting from upregulation of the inducible isoform of NO synthase in the endothelium.
Source: JAHA:Journal of the American Heart Association - December 19, 2014 Category: Cardiology Authors: Villalba, N., Sonkusare, S. K., Longden, T. A., Tran, T. L., Sackheim, A. M., Nelson, M. T., Wellman, G. C., Freeman, K. Tags: Stroke Source Type: research

New York State: Comparison of Treatment Outcomes for Unruptured Cerebral Aneurysms Using an Instrumental Variable Analysis Stroke
Conclusions Using a comprehensive all-payer cohort of patients in New York State with unruptured cerebral aneurysms, we did not identify an association of treatment method with mortality or 30-day readmission. Clipping was associated with a higher rate of discharge to rehabilitation and longer length of stay.
Source: JAHA:Journal of the American Heart Association - July 13, 2015 Category: Cardiology Authors: Bekelis, K., Missios, S., Coy, S., Singer, R. J., MacKenzie, T. A. Tags: Stroke Source Type: research

Thiosulfate Mediates Cytoprotective Effects of Hydrogen Sulfide Against Neuronal Ischemia Stroke
Conclusions The protective effects of H2S are mediated by thiosulfate that is transported across cell membrane by NaS-2 and exerts antiapoptotic effects via persulfidation of caspase-3. Given the established safety track record, thiosulfate may be therapeutic against ischemic brain injury.
Source: JAHA:Journal of the American Heart Association - November 6, 2015 Category: Cardiology Authors: Marutani, E., Yamada, M., Ida, T., Tokuda, K., Ikeda, K., Kai, S., Shirozu, K., Hayashida, K., Kosugi, S., Hanaoka, K., Kaneki, M., Akaike, T., Ichinose, F. Tags: Stroke Source Type: research

N-Terminal Pro-Brain Natriuretic Peptide (NT-proBNP) Levels are Increased in Patients With Transient Ischemic Attack Accompanied by Nonfocal Symptoms Stroke
Conclusion NT-proBNP levels are increased in patients with TIA accompanied by nonfocal symptoms.
Source: JAHA:Journal of the American Heart Association - December 15, 2015 Category: Cardiology Authors: Plas, G. J. J., Jurg, S. D., Brusse-Keizer, M., Dippel, D. W. J., Koudstaal, P. J., den Hertog, H. M. Tags: Stroke Source Type: research

Cardiac Time Intervals Measured by Tissue Doppler Imaging M-mode: Association With Hypertension, Left Ventricular Geometry, and Future Ischemic Cardiovascular Diseases Imaging
Conclusion The cardiac time intervals identify impaired cardiac function in individuals with hypertension, not only independent of conventional risk factors but also in participants with a normal conventional echocardiographic examination. The IVRT/ET and MPI are independent predictors of future cardiovascular disease especially in participants with known hypertension.
Source: JAHA:Journal of the American Heart Association - January 19, 2016 Category: Cardiology Authors: Biering-Sorensen, T., Mogelvang, R., Schnohr, P., Jensen, J. S. Tags: Risk Factors, Hypertension, Echocardiography, Quality and Outcomes, Ischemic Stroke Imaging Source Type: research

Gradual Carotid Artery Stenosis in Mice Closely Replicates Hypoperfusive Vascular Dementia in Humans Stroke
Conclusions The GCAS model successfully generated gradual and continuous CBF reduction over 28 days, with replication of key histological, radiological, and behavioral features associated with cerebral hypoperfusion leading to VCI.
Source: JAHA:Journal of the American Heart Association - February 22, 2016 Category: Cardiology Authors: Hattori, Y., Enmi, J.-i., Iguchi, S., Saito, S., Yamamoto, Y., Tsuji, M., Nagatsuka, K., Kalaria, R. N., Iida, H., Ihara, M. Tags: Animal Models of Human Disease, Cerebrovascular Disease/Stroke, Cognitive Impairment, Atherosclerosis, Stenosis Source Type: research

ABCA1-Mediated Cholesterol Efflux Capacity to Cerebrospinal Fluid Is Reduced in Patients With Mild Cognitive Impairment and Alzheimer's Disease Stroke
Conclusions In people with MCI and AD, the capacity of CSF to facilitate ABCA1-mediated cholesterol efflux is impaired. This lesser cholesterol efflux in MCI supports a pathophysiological role for ABCA1-mediated cholesterol transport in early neurodegeneration.
Source: JAHA:Journal of the American Heart Association - February 12, 2016 Category: Cardiology Authors: Yassine, H. N., Feng, Q., Chiang, J., Petrosspour, L. M., Fonteh, A. N., Chui, H. C., Harrington, M. G. Tags: Lipids and Cholesterol Stroke Source Type: research