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< i > In silico < /i > investigation of the mechanisms underlying atrial fibrillation due to impaired Pitx2
by Jieyun Bai, Andy Lo, Patrick A. Gladding, Martin K. Stiles, Vadim V. Fedorov, Jichao Zhao Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is a major cause of stroke and morbidity. Recent genome-wide association studies have shown that paired-like homeodomain transcription factor 2 (Pitx2) to be strongly associated with AF. However, the mechanisms underlying Pitx2 modulated arrhythmogenesis and variable effectiveness of antiarrhythmic drugs (AADs) in patients in the presence or absence of impaired Pitx2 expression remain unclear. We have developed multi-scale computer models, ranging from a ...
Source: PLoS Computational Biology - February 25, 2020 Category: Biology Authors: Jieyun Bai Source Type: research

Computational prediction of the effect of D172N KCNJ2 mutation on ventricular pumping during sinus rhythm and reentry
In this study, we analyzed not only the electrophysiological activity but also the mechanical responses during normal sinus rhythm and reentry conditions by using computational modeling. We simulated four different ventricular conditions including normal case of ten Tusscher model 2006 (TTM), wild-type (WT), heterozygous (WT/D172N), and homozygous D172N mutation. The 2D simulation result (in wire-shaped mesh) showed the WT/D172N and D172N mutation shortened the action potential duration by 14%, and by 23%, respectively. The 3D electrophysiological simulation results showed that the electrical wavelength between TTM and WT ...
Source: Medical and Biological Engineering and Computing - February 24, 2020 Category: Biomedical Engineering Source Type: research

Trends of antihypertensive agents in patients with hypertension and coronary artery disease in a tertiary hospital of China
Conclusion The compliance to guidelines is overall well for patients with hypertension and coronary artery disease, but improvements is needed for patients with type 2 diabetes. Multi-center studies with large-scale data are required to further assess the usage of antihypertensive agents in patients.
Source: International Journal of Clinical Pharmacy - February 20, 2020 Category: Drugs & Pharmacology Source Type: research

Review on the Diagnosis and Treatment of Reversible Cerebral Vasoconstriction Syndrome in Children and Adolescents
Semin Neurol DOI: 10.1055/s-0040-1702942Reversible cerebral vasoconstriction syndrome (RCVS) is a clinical–radiologic diagnosis that affects children and adolescents, but it is much more frequently reported in adults. Clinically, patients present with severe and commonly recurrent thunderclap headaches. Typical precipitating triggers include vasoactive substances, serotonergic agents, and the postpartum period. There may be associated neurologic complications at presentation or in the weeks following, such as convexity subarachnoid hemorrhage, stroke, cerebral edema, cervical artery dissection (CeAD), and seizures. Angio...
Source: Seminars in Neurology - February 20, 2020 Category: Neurology Authors: Qubty, William Irwin, Samantha Lee Fox, Christine K. Tags: Review Article Source Type: research

Prolactin attenuates global cerebral ischemic injury in rat model by conferring neuroprotection.
Conclusion: Prolactin is able to ameliorate ischemia-reperfusion injury in rat brain and might be a potent candidate for further neuro-therapeutics development. PMID: 32064956 [PubMed - as supplied by publisher]
Source: Brain Injury - February 19, 2020 Category: Neurology Tags: Brain Inj Source Type: research

A calcium channel or angiotensin converting enzyme inhibitor/angiotensin receptor blocker regime to reduced blood pressure variability in acute ischaemic stroke (CAARBS): A feasibility trial
Trials of lowering blood pressure in patients with acute ischaemic stroke not undergoing thrombolysis have not demonstrated improved outcomes with intervention. Rather than absolute levels, it may be that blood pressure variability is important. However, there are no prospective randomised trials investigating the benefit of reducing blood pressure variability in this patient group.
Source: Journal of the Neurological Sciences - February 19, 2020 Category: Neurology Authors: William J. Davison, Karen Appiah, Thompson G. Robinson, Iain J. McGurgan, Peter M. Rothwell, John F. Potter Source Type: research

Cardiac calcium dysregulation in mice with chronic kidney disease.
In conclusions, the modulation of CaMKII, PLB and late Na+ current in CKD significantly altered cardiac Ca2+ regulation and electrophysiological characteristics. These findings may apply on future clinical therapies. PMID: 32064746 [PubMed - as supplied by publisher]
Source: J Cell Mol Med - February 16, 2020 Category: Molecular Biology Authors: Ke HY, Chin LH, Tsai CS, Lin FZ, Chen YH, Chang YL, Huang SM, Chen YC, Lin CY Tags: J Cell Mol Med Source Type: research

Relationship between calcium intake and impaired activities of daily living in a Japanese population: NIPPON DATA90.
CONCLUSIONS: After bootstrap analyses, calcium intake was inversely associated with impaired ADL, 10 years after the baseline survey. PMID: 32037365 [PubMed - as supplied by publisher]
Source: Journal of Epidemiology - February 12, 2020 Category: Epidemiology Tags: J Epidemiol Source Type: research

Investigation of Computed-Tomography Based Predictors of Acute Stroke Related to Transcatheter Aortic Valve Replacement: Aortic Wall Plaque Thickness Might be a Predictive Parameter of Stroke.
CONCLUSION: Aortic wall plaque thickness measured by contrast-enhanced CT might be a predictive parameter of strokes that occur within 48 hours after TAVR. PMID: 32005786 [PubMed - in process]
Source: The Journal of Invasive Cardiology - February 3, 2020 Category: Cardiology Tags: J Invasive Cardiol Source Type: research

Role of injection laryngoplasty in preventing post-stroke aspiration pneumonia, case series report
Conclusion: Injection laryngoplasty proved to be both successful and safe in improving glottic closure with immediate results in those who had failed to show a positive response after long-term swallowing rehabilitation. The positive and dramatic clinical outcomes were observed through changes in the coughing force. Our case series support the use of injection larygnoplasty as a powerful adjunctive treatment method to prevent aspiration pneumonia in post-stroke patients with vocal fold insufficiency. Pre- and post-injection peak cough flow changes may reflect improvement in glottic closure and indicate the safety of swal...
Source: Medicine - February 1, 2020 Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research

Mu-Xiang-You-Fang protects PC12 cells against OGD/R-induced autophagy via the AMPK/mTOR signaling pathway
ConclusionsThese findings suggest that MXYF inhibits autophagy after OGD/R-induced PC12 cell injury through the AMPK-mTOR pathway. Thus, MXYF might have therapeutic potential in treating ischemic stroke.Graphical abstract
Source: Journal of Ethnopharmacology - January 28, 2020 Category: Drugs & Pharmacology Source Type: research

Mu-Xiang-You-Fang protects PC12 cells against OGD/R-induced autophagy via the AMPK/mTOR signaling pathway
ConclusionsThese findings suggest that MXYF inhibits autophagy after OGD/R-induced PC12 cell injury through the AMPK-mTOR pathway. Thus, MXYF might have therapeutic potential in treating ischemic stroke.Graphical abstract
Source: Journal of Ethnopharmacology - January 23, 2020 Category: Drugs & Pharmacology Source Type: research

Influence of dual ‐specificity protein phosphatase 5 on mechanical properties of rat cerebral and renal arterioles
In this study, we found that KO ofDusp5 did not alter body weights, kidney and brain weights, plasma glucose, and HbA1C levels. The expression of pERK is higher in the nucleus of primary VSMC isolated fromDusp5 KO rats.Dusp5 KO rats exhibited eutrophic vascular hypotrophy with smaller intracerebral parenchymal arterioles and renal interlobular arterioles without changing the wall ‐to‐lumen ratios. These arterioles fromDusp5 KO rats displayed higher myogenic tones, better distensibility, greater compliance, and less stiffness compared with arterioles from WT control rats. VSMC ofDusp5 KO rats exhibited a stronger contra...
Source: Physiological Reports - January 20, 2020 Category: Physiology Authors: Huawei Zhang, Chao Zhang, Yedan Liu, Wenjun Gao, Shaoxun Wang, Xing Fang, Ya Guo, Man Li, Ruen Liu, Richard J. Roman, Peng Sun, Fan Fan Tags: ORIGINAL RESEARCH Source Type: research

Plasma Fibroblast Growth Factor 23 Concentration Is Associated with Intracranial Cerebral Atherosclerosis in Acute Ischemic Stroke Patients.
CONCLUSIONS: The plasma FGF23 may be a potential biomarker for cerebral atherosclerosis, particularly the presence and burden of ICAS in stroke patients. PMID: 31942755 [PubMed]
Source: Journal of Clinical Neurology - January 17, 2020 Category: Neurology Tags: J Clin Neurol Source Type: research

Pre-clinical to clinical translational failures and current status of clinical trials in stroke therapy: a brief review.
This article highlights the various agents which have tried in the past but failed to translate into stroke therapy along with key points that are responsible for lagging of experimental success to translational failure in stroke treatment. PMID: 31934841 [PubMed - as supplied by publisher]
Source: Current Neuropharmacology - January 14, 2020 Category: Drugs & Pharmacology Authors: Dhir N, Medhi B, Prakash A, Goyal MK, Modi M, Mohindra S Tags: Curr Neuropharmacol Source Type: research

Exposure to dietary polychlorinated biphenyls and dioxins, and its relationship with subclinical coronary atherosclerosis: The Aragon Workers' Health Study.
CONCLUSIONS: In this general male population, dietary exposure to PCBs, but not to dioxins, was associated with a higher prevalence of coronary calcium and to more intense subclinical coronary atherosclerosis. PCBs exposure seems to increase the risk of coronary disease in men from the very early stages. PMID: 31918334 [PubMed - as supplied by publisher]
Source: Environment International - January 6, 2020 Category: Environmental Health Authors: Donat-Vargas C, Moreno-Franco B, Laclaustra M, Sandoval-Insausti H, Jarauta E, Guallar-Castillon P Tags: Environ Int Source Type: research

Effects of Blood Pressure Lowering Agents on Cardiovascular Outcomes in Weight Excess Patients: A Systematic Review and Meta-analysis
ConclusionsIn hypertensive subjects with excess weight, diuretics are more effective for preventing HF and stroke than CCB and ACEI, respectively. CCB are a good first-line choice for prevention of cardiovascular disease, except HF.
Source: American Journal of Cardiovascular Drugs - January 3, 2020 Category: Cardiology Source Type: research

Human Milk Oligosaccharide 2 ′-Fucosyllactose Reduces Neurodegeneration in Stroke Brain
In conclusion, our data suggest that 2’-FL has neuroprotective action through inhibition of Ca++i, inflammation, and apoptosis. Posttreatment with 2 ’-FL facilitates neural repair in stroke brain.
Source: Translational Stroke Research - January 2, 2020 Category: Neurology Source Type: research

Meta-analysis Evaluating Calcium Channel Blockers and the Risk of Peripheral Arterial Disease in Patients with Hypertension
Peripheral arterial disease (PAD) is associated with significant morbidity and mortality. It affects 8.5 million Americans aged 40 years and above, and 202 million people worldwide.1 Given the significant burden and resource utilization associated with PAD, strategies for preventing the development of PAD could have an enormous impact. Hypertension is an established risk factor for the development of atherosclerotic vascular disease including PAD. Over the past two decades, several randomized controlled trials (RCTs) have examined the efficacy of various antihypertensive agents in reducing mortality and other major adverse...
Source: The American Journal of Cardiology - December 27, 2019 Category: Cardiology Authors: Suchith Shetty, Aaqib H. Malik, Herman Feringa, Ramzi El Accaoui, Saket Girotra Source Type: research

Anti-hypertensive agents in Alzheimer's disease: beyond vascular protection.
Authors: Lebouvier T, Chen Y, Duriez P, Pasquier F, Bordet R Abstract INTRODUCTIONMidlife hypertension has been consistently linked with increased risk of cognitive decline and Alzheimer's disease (AD). Observational studies and randomized trials show that the use of antihypertensive therapy is associated with a lesser incidence or prevalence of cognitive impairment and dementia. However, whether anti-hypertensive agents specifically target the pathological process of AD remains elusive.AREAS COVEREDThis review of literature provides an update on the clinical and preclinical arguments supporting anti-AD properties of ...
Source: Expert Review of Neurotherapeutics - December 24, 2019 Category: Neurology Tags: Expert Rev Neurother Source Type: research

Berberine Ameliorates Brain Inflammation in Poloxamer 407-Induced Hyperlipidemic Rats.
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 - December 6, 2019 Category: Urology & Nephrology Tags: Int Neurourol J Source Type: research

Down ‐regulation of miR‐3068‐3p enhances kcnip4‐regulated A‐type potassium current to protect against glutamate‐induced excitotoxicity
AbstractThe main cause of excitotoxic neuronal death in ischemic stroke is the massive release of glutamate. Recently, microRNAs (miRNAs) have been found to play an essential role in stroke pathology, although the molecular mechanisms remain to be investigated. Here, to identify potential candidate miRNAs involved in excitotoxicity, we treated rat primary cortical neurons with glutamate and found that miR ‐3068‐3p, a novel miRNA, was upregulated. We hypothesized that restoring miR‐3068‐3p expression might influence the neuronal injury outcomes. The inhibition of miR‐3068‐3p, using tough decoy lentiviruses, sign...
Source: Journal of Neurochemistry - December 2, 2019 Category: Neuroscience Authors: Zi ‐Jun Su, Xu‐Yi Wang, Chen Zhou, Zhen Chai Tags: ORIGINAL ARTICLE Source Type: research

GSE140275 Expression profile and potential functions of circulating long noncoding RNAs in acute ischemic stroke in the Southern Chinese Han population
Conclusion: This study provides evidence of altered expression of lncRNAs and their potential functions in AIS. Our findings may facilitate pathological mechanistic studies of lncRNAs in AIS and provide potential diagnostic biomarkers and therapeutic targets for AIS.
Source: GEO: Gene Expression Omnibus - November 13, 2019 Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research

Micro RNA 181c-5p: a promising target for post-stroke recovery in socially isolated mice
Publication date: Available online 10 November 2019Source: Neuroscience LettersAuthor(s): Maria Antony, Victoria Scranton, Pranay Srivastava, Rajkumar VermaAbstractDysregulation of microRNAs (miRNAs) has been tied to several neurological disorders, including ischemic stroke. It has also been established that social environments can modulate miRNA profiles. We have previously shown that post-stroke social isolation (SI) is linked to poor stroke outcomes and that miR-181c-5p emerged as one of few lead miRNAs that was downregulated in both stroke and SI. Therefore, in this study we examined the potential role of miR-181c-5p m...
Source: Neuroscience Letters - November 11, 2019 Category: Neuroscience Source Type: research

Continuous theta burst stimulation provides neuroprotection by accelerating local cerebral blood flow and inhibiting inflammation in a mouse model of acute ischemic stroke.
Abstract Acute ischemic stroke is a leading cause of disability with limited therapeutic options. Continuous theta burst stimulation (cTBS) has recently been shown to be a promising noninvasive therapeutic strategy for neuroprotection in ischemic stroke patients. Here, we investigated the protective effects of cTBS following acute infarction using a photothrombotic stroke (PTS) model in the right posterior parietal cortex (PPC) of C57BL/6 mice. Treatment with cTBS resulted in a reduction in the volume of the infarct region and significantly increased vascular diameter and blood flow velocity in peri-infarct region...
Source: Brain Research - October 3, 2019 Category: Neurology Authors: Wu C, Li MN, Feng YW, He XF, Li WQ, Liang FY, Li X, Li G, Pei Z, Lan Y, Xu GQ Tags: Brain Res Source Type: research

Electroacupuncture ameliorates learning and memory deficits via hippocampal 5-HT1A receptors and the PKA signaling pathway in rats with ischemic stroke
This study aimed to investigate whether PKA signaling mediated by 5-HT1A receptors was involved in the electroacupuncture (EA)-mediated learning and memory in a rat model of middle cerebral artery occlusion-induced cognitive deficit (MICD). Compared to no treatment or non-acupoint EA treatment, EA at DU20 and DU24 acupoints improved the neurological deficit of scores, shortened escape latency and increased the frequency of crossing the platform in the Morris water maze test. T2-weighted imaging demonstrated that the MICD rat brain lesions were mainly located in the cortex and hippocampus, and injured volumes were reduced a...
Source: Metabolic Brain Disease - September 12, 2019 Category: Neurology Source Type: research

Serum lipoprotein(a) and risk of hemorrhagic stroke among incident peritoneal dialysis patients: a large study from a single center in China.
Conclusions: Among patients with incident PD, a higher serum Lp(a) level may predict a lower risk of hemorrhagic stroke. PMID: 31498021 [PubMed - in process]
Source: Renal Failure - September 10, 2019 Category: Urology & Nephrology Tags: Ren Fail Source Type: research

Calcium Imaging of Microglial Network Activity in Stroke.
This reporter system has enabled in vivo studies of intracellular calcium in large microglial cell populations in cerebral pathologies such as ischemic stroke. In this chapter, we outline specific guidelines for genetic, surgical, imaging, and data analysis aspects of microglial calcium monitoring of the ischemic cortex following middle cerebral artery occlusion. PMID: 31392691 [PubMed - in process]
Source: Mol Biol Cell - August 9, 2019 Category: Molecular Biology Authors: Tvrdik P, Kearns KN, Sharifi KA, Sluzewski MF, Acton ST, Kalani MYS Tags: Methods Mol Biol Source Type: research

Effect of Intensive Blood Pressure Control on Carotid Morphology and Hemodynamics in Chinese Patients with Hyperhomocysteinemia-Type Hypertension and High Risk of Stroke.
CONCLUSIONS Intensive blood pressure management could be beneficial for Chinese patients with hyperhomocysteinemia-type hypertension and high risk of stroke. PMID: 31369520 [PubMed - in process]
Source: Medical Science Monitor - August 3, 2019 Category: Research Tags: Med Sci Monit Source Type: research

Relationship Between Sleep Apnea and Coronary Artery Calcium in Patients With Ischemic Stroke
Conclusion: Our findings indicate a relationship between coronary atherosclerotic burden measured by the CAC score and the severity of sleep apnea. Performing polysomnography could be useful for investigating the severity of hidden coronary artery disease among these patients.
Source: Frontiers in Neurology - July 31, 2019 Category: Neurology Source Type: research

Stroke Risk in Atrial Fibrillation: Beyond the CHA 2 DS 2 -VASc Score
AbstractPurpose of ReviewStroke prevention is the cornerstone of atrial fibrillation (AF) management and the anticoagulation decision is currently based on CHA2DS2-VASc risk score. We discuss several novel risk factors besides those included in CHA2DS2-VASc score and alternative models for stroke prediction.Recent FindingsSeveral clinical markers including obstructive sleep apnea and renal failure, laboratory markers like brain natriuretic peptide, imaging criteria including left atrial appendage morphology, spontaneous echo contrast, and coronary artery calcium score may predict stroke in AF patients. Addition of African ...
Source: Current Cardiology Reports - July 27, 2019 Category: Cardiology Source Type: research

Roles Played by the Na+/Ca2+ Exchanger and Hypothermia in the Prevention of Ischemia-Induced Carrier-Mediated Efflux of Catecholamines into the Extracellular Space: Implications for Stroke Therapy.
Abstract The release of [3H]dopamine ([3H]DA) and [3H]noradrenaline ([3H]NA) in acutely perfused rat striatal and cortical slice preparations was measured at 37 °C and 17 °C under ischemic conditions. The ischemia was simulated by the removal of oxygen and glucose from the Krebs solution. At 37 °C, resting release rates in response to ischemia were increased; in contrast, at 17 °C, resting release rates were significantly reduced, or resting release was completely prevented. The removal of extracellular Ca2+ further increased the release rates of [3H]DA and [3H]NA induced by ischemic conditions. This findi...
Source: Neurochemical Research - July 25, 2019 Category: Neuroscience Authors: Lakatos M, Baranyi M, Erőss L, Nardai S, Török TL, Sperlágh B, Vizi ES Tags: Neurochem Res Source Type: research

Factors Influencing Quality of Life in Stroke Patients: Focus on Eating Habits
This study aimed to identify lifestyle factors about eating habits that may affect the quality of life (QOL) in elderly stroke patients. Methods: Fifty elderly patients with a first-ever stroke were enrolled. QOL was assessed by the Stroke and Aphasia QOL Scale-39-J. Lifestyle factors about eating habits were collected using questionnaires (Questions 1-17) for the intake of salt, calcium, magnesium, potassium, taurine, fiber, and protein, and the frequency of breakfast.
Source: Journal of Stroke and Cerebrovascular Diseases - March 19, 2019 Category: Neurology Authors: Reina Chiba, Saya Tominaga, Kasumi Mikami, Maiko Kitajima, Mayumi Urushizaka, Toshiko Tomisawa, Junko Chiba, Joji Hagii, Minoru Yasujima, Tomohiro Osanai Source Type: research

Neuroimaging, serum biomarkers, and patient characteristics as predictors of upper limb functioning 12 weeks after acute stroke: an observational, prospective study.
CONCLUSION: ASPECTS score ≥ 8 within 24 hours and S100β protein < 140.5 ng/L at 48 hours predict better upper limb functioning, while advanced age predicts worse upper limb functioning 12 weeks after stroke. PMID: 30213243 [PubMed - as supplied by publisher]
Source: Topics in Stroke Rehabilitation - September 13, 2018 Category: Neurology Authors: Branco JP, Oliveira S, Sargento-Freitas J, Galego O, Cordeiro G, Cunha L, Freire Gonçalves A, Pinheiro J Tags: Top Stroke Rehabil Source Type: research

Early Blood-Brain Barrier Disruption in Ischemic Stroke Initiates Multifocally Around Capillaries/Venules Basic Sciences
Conclusions—Early BBBD in focal cerebral ischemia initiates multifocally in the distal capillary and venular bed of the cerebral microvasculature. It is closely associated with perimicrovascular vasogenic edema and microglial activation and predicts the extent of final infarction.
Source: Stroke - May 25, 2018 Category: Neurology Authors: Angelika Hoffmann, Tassilo Dege, Reiner Kunze, Anne–Sophie Ernst, Holger Lorenz, Laura–Ines Bohler, Thomas Korff, Hugo H. Marti, Sabine Heiland, Martin Bendszus, Xavier Helluy, Mirko Pham Tags: Biomarkers, Vascular Biology, Magnetic Resonance Imaging (MRI), Blood-Brain Barrier, Ischemic Stroke Original Contributions Source Type: research

Revised Framingham Stroke Risk Score, Nontraditional Risk Markers, and Incident Stroke in a Multiethnic Cohort Clinical Sciences
Conclusions—The R-FSRS downgraded stroke risk but had better calibration and discriminative ability for incident stroke compared with the original FSRS. Nontraditional risk markers modestly improved the discriminative ability of the R-FSRS, with coronary artery calcium performing the best.
Source: Stroke - January 22, 2018 Category: Neurology Authors: Peter Flueckiger, Will Longstreth, David Herrington, Joseph Yeboah Tags: Epidemiology, Primary Prevention, Race and Ethnicity, Risk Factors, Cerebrovascular Disease/Stroke Original Contributions Source Type: research

Risk of Ischemic Stroke Associated With Calcium Supplements With or Without Vitamin D: A Nested Case-Control Study Stroke
BackgroundThere is controversy surrounding the risk of ischemic stroke associated with the use of calcium supplements either in monotherapy or in combination with vitamin D.Methods and ResultsA nested case‐control study was performed with patients aged 40 to 89 years old, among whom a total of 2690 patients had a first episode of nonfatal ischemic stroke and for which 19 538 controls were randomly selected from the source population and frequency‐matched with cases for age, sex, and calendar year. Logistic regression provided the odds ratios while adjusting for confounding factors. A sensitivity analysis was performe...
Source: JAHA:Journal of the American Heart Association - May 18, 2017 Category: Cardiology Authors: de Abaȷo, F. J., Rodriguez-Martin, S., Rodriguez-Miguel, A., Gil, M. J. Tags: Cerebrovascular Disease/Stroke, Ischemic Stroke Original Research Source Type: research

Coronary Artery Calcium Score Improves the Prediction of Occult Coronary Artery Stenosis in Ischemic Stroke Patients Stroke
BackgroundCoronary heart disease is a significant cause of morbidity and mortality in stroke patients. The coronary artery calcium score (CACS) has emerged as a robust and noninvasive predictor of coronary events. We assessed the predictive ability of CACS to identify stroke patients with severe (≥50%) occult coronary artery stenosis in a stroke/transient ischemic attack population, in addition to the PRECORIS score, based on Framingham Risk Score and presence of cervicocephalic artery stenosis, which was derived and validated for that purpose.Methods and ResultsWe enrolled consecutive patients aged 45 to 75 years refer...
Source: JAHA:Journal of the American Heart Association - October 31, 2016 Category: Cardiology Authors: Beigneux, Y., Sablayrolles, J.-L., Varenne, O., Mas, J.-L., Calvet, D. Tags: Computerized Tomography (CT), Ischemic Stroke, Transient Ischemic Attack (TIA), Atherosclerosis, Coronary Artery Disease Original Research Source Type: research

The relationship between bone mineral density and cerebral pulsatility index in patients with acute ischemic stroke (P6.025)
Conclusions: Our findings indicate that decreased BMD may be associated with atherosclerosis in the cerebral circulation.Disclosure: Dr. Park has nothing to disclose. Dr. Park has nothing to disclose. Dr. Suk has nothing to disclose. Dr. Koh has nothing to disclose. Dr. Hwang has nothing to disclose. Dr. Song has nothing to disclose. Dr. Lee has nothing to disclose.
Source: Neurology - April 4, 2016 Category: Neurology Authors: Park, J. H., Park, J. H., Suk, S.-H., Koh, I.-S., Hwang, S.-H., Song, H.-K., Lee, J. H. Tags: Ischemic Stroke Diagnosis Source Type: research

Intracranial Carotid Calcification on Cranial Computed Tomography: Visual Scoring Methods, Semiautomated Scores, and Volume Measurements in Patients With Stroke Clinical Sciences
Conclusions— Visual scores correlate highly with quantitative intracranial internal carotid artery calcification measures, with excellent observer agreements. Visual intracranial internal carotid artery scores could be a rapid and practical method for epidemiological studies.
Source: Stroke - August 24, 2015 Category: Neurology Authors: Subedi, D., Zishan, U. S., Chappell, F., Gregoriades, M.-L., Sudlow, C., Sellar, R., Wardlaw, J. Tags: Cerebrovascular disease/stroke, CT and MRI, Carotid Stenosis, Risk Factors for Stroke Clinical Sciences Source Type: research

Intakes of magnesium, potassium, and calcium and the risk of stroke among men
ConclusionsA diet rich in magnesium, potassium, and calcium may contribute to reduced risk of stroke among men. Because of significant collinearity, the independent contribution of each cation is difficult to define.
Source: International Journal of Stroke - June 4, 2015 Category: Neurology Authors: Sally N. Adebamowo, Donna Spiegelman, Alan J. Flint, Walter C. Willett, Kathryn M. Rexrode Tags: Research Source Type: research

CT Angiogram Helps to Predict Ischemic Stroke in Dizzy Patients, but NOT Better than the Clinical Examination (P3.084)
Conclusions: In patients with subjective dizziness, stroke risk factors and focal exam findings predict acute ischemic stroke. Calcification on CTA is also predictive, but does not significantly improve sensitivity.Disclosure: Dr. Chen has nothing to disclose. Dr. Schneider has nothing to disclose. Dr. Marsh has nothing to disclose.
Source: Neurology - April 8, 2015 Category: Neurology Authors: Chen, K., Schneider, A., Marsh, E. Tags: Cerebrovascular Disease and Interventional Neurology: Hemorrhagic and Ischemic Stroke Source Type: research

Fibroblast Growth Factor 23 and Risk of Incident Stroke in Community-Living Adults Clinical Sciences
Conclusions— Higher FGF23 concentrations were associated with higher risk of cardioembolic but not with other stroke subtypes in community-dwelling adults. Additional studies should delineate reasons for these findings.
Source: Stroke - January 26, 2015 Category: Neurology Authors: Panwar, B., Jenny, N. S., Howard, V. J., Wadley, V. G., Muntner, P., Kissela, B. M., Judd, S. E., Gutierrez, O. M. Tags: Acute Cerebral Infarction, Embolic stroke, Epidemiology Clinical Sciences Source Type: research

Therapy with the Combination of Amlodipine and Irbesartan Has Persistent Preventative Effects on Stroke Onset Associated with BDNF Preservation on Cerebral Vessels in Hypertensive Rats
In this study, we investigated the significant beneficial effects of the combination therapy using amlodipine and irbesartan against stroke onset in hypertensive rats. The animals were fed an 8 % sodium diet and assigned to (1) vehicle, (2) amlodipine (2 mg/kg/day), (3) irbesartan (20 mg/kg/day), and (4) amlodipine + irbesartan groups. The drugs were given orally until 35 days, and incidences of stroke-related signs and mortality and blood pressure (BP) were monitored. Cerebral blood flow (CBF), brain water content, weight of the brain and left ventricle, and histological evaluations were conducted for the treated grou...
Source: Translational Stroke Research - December 23, 2014 Category: Neurology Source Type: research

Blood-Brain Barrier KCa3.1 Channels: Evidence for a Role in Brain Na Uptake and Edema in Ischemic Stroke Basic Sciences
Conclusions— BBB endothelial cells exhibit KCa3.1 protein and activity and pharmacological blockade of KCa3.1 seems to provide an effective therapeutic approach for reducing cerebral edema formation in the first 3 hours of ischemic stroke.
Source: Stroke - December 22, 2014 Category: Neurology Authors: Chen, Y.-J., Wallace, B. K., Yuen, N., Jenkins, D. P., Wulff, H., O'Donnell, M. E. Tags: Acute Cerebral Infarction Basic Sciences Source Type: research

Hypoxic-ischemic neonatal encephalopathy: animal experiments for neuroprotective therapies.
Authors: Sameshima H, Ikenoue T Abstract Hypoxic-ischemic neonatal encephalopathy and ensuing brain damage is still an important problem in modern perinatal medicine. In this paper, we would like to share some of the results of our recent studies on neuroprotective therapies in animal experiments, as well as some literature reviews. From the basic animal studies, we have now obtained some possible candidates for therapeutic measures against hypoxic-ischemic neonatal encephalopathy. For example, they are hypothermia, rehabilitation, free radical scavenger, neurotrophic factors and growth factors, steroid, calcium ch...
Source: Stroke Research and Treatment - December 2, 2014 Category: Neurology Tags: Stroke Res Treat Source Type: research

Calcium and potassium channels in experimental subarachnoid hemorrhage and transient global ischemia.
Authors: Kamp MA, Dibué M, Schneider T, Steiger HJ, Hänggi D Abstract Healthy cerebrovascular myocytes express members of several different ion channel families which regulate resting membrane potential, vascular diameter, and vascular tone and are involved in cerebral autoregulation. In animal models, in response to subarachnoid blood, a dynamic transition of ion channel expression and function is initiated, with acute and long-term effects differing from each other. Initial hypoperfusion after exposure of cerebral vessels to oxyhemoglobin correlates with a suppression of voltage-gated potassium channel activity...
Source: Stroke Research and Treatment - December 2, 2014 Category: Neurology Tags: Stroke Res Treat Source Type: research

Response of Day-to-Day Home Blood Pressure Variability by Antihypertensive Drug Class After Transient Ischemic Attack or Nondisabling Stroke Clinical Sciences
Conclusions— After transient ischemic attack or minor stroke, calcium channel blockers and diuretics reduced variability and maximum home SBP, primarily because of effects on morning readings. Home BP readings enable monitoring of response to SBP variability-directed treatment in patients with recent cerebrovascular events.
Source: Stroke - September 22, 2014 Category: Neurology Authors: Webb, A. J. S., Wilson, M., Lovett, N., Paul, N., Fischer, U., Rothwell, P. M. Tags: Secondary prevention, Cerebrovascular disease/stroke Clinical Sciences Source Type: research

Comparative effects of antihypertensive drugs on stroke outcome in China
ConclusionThis study suggests that early initiation of calcium channel blockers is associated with improved outcome after stroke. Further randomized studies are warranted to confirm these findings and to delineate differential beneficial effects of antihypertensive therapy in stroke prevention.
Source: International Journal of Stroke - July 1, 2014 Category: Neurology Authors: Emma L. Heeley, Jade W. Wei, Ji‐Guang Wang, Hisatomi Arima, Yining Huang, Lawrence K. S. Wong, Craig S. Anderson, Tags: Research Source Type: research