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Ischemic stroke biomarkers in blood

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https://www.readbyqxmd.com/read/28531882/%C3%AE-thromboglobulin-and-incident-cardiovascular-disease-risk-the-atherosclerosis-risk-in-communities-study
#1
Yasuhiko Kubota, Alvaro Alonso, Aaron R Folsom
INTRODUCTION: Although it has been suggested that increased concentrations of activated platelet biomarkers are associated with increased risk of incident cardiovascular disease (CVD) in the general population, evidence for this association is still controversial. Thus, we tested the hypothesis that activated platelets, measured by higher concentrations of β-thromboglobulin, are associated with increased risk of incident CVD (coronary heart disease, heart failure ischemic stroke, and atrial fibrillation)...
May 17, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28530142/a-targeted-self-management-approach-for-reducing-stroke-risk-factors-in-african-american-men-who-have-had-a-stroke-or-transient-ischemic-attack
#2
Martha Sajatovic, Curtis Tatsuoka, Elisabeth Welter, Kari Colon-Zimmermann, Carol Blixen, Adam T Perzynski, Shelly Amato, Jamie Cage, Johnny Sams, Shirley M Moore, Svetlana Pundik, Sophia Sundararajan, Charles Modlin, Cathy Sila
PURPOSE: This study compared a novel self-management (TargetEd MAnageMent Intervention [TEAM]) versus treatment as usual (TAU) to reduce stroke risk in African American (AA) men. DESIGN: Six-month prospective randomized controlled trial with outcomes evaluated at baseline, 3 months, and 6 months. SETTING: Academic health center. PARTICIPANTS: Thirty-eight (age < 65) AA men who had a stroke or transient ischemic attack and a Barthel index score of >60 were randomly assigned to TEAM (n = 19) or TAU (n = 19)...
January 1, 2017: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/28528975/autophagy-related-gene-microarray-and-bioinformatics-analysis-for-ischemic-stroke-detection
#3
Yinsheng Guo, Yue Ma, Yanwei Zhang, Li Zhou, Suli Huang, Ying Wen, Fei Zou, Jinquan Cheng
Ischemic stroke (IS) is characterized by high morbidity and poor prognosis. However, the mechanisms of IS induced injury are still poorly understood. The main aim of this study is to explore the role of autophagy in IS. Ten pairs of whole blood samples of IS patients and matched controls were included to select differential expressed genes (DE genes) by autophagy-related functional gene microarray analysis. And then, one hundred and fifty pairs of whole blood samples of IS patients and matched controls were included to validate the DE genes...
May 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28477280/biomarkers-of-acute-stroke-etiology-base-study-methodology
#4
Edward C Jauch, Andrew D Barreto, Joseph P Broderick, Doug M Char, Brett L Cucchiara, Thomas G Devlin, Alison J Haddock, William J Hicks, Brian C Hiestand, Glen C Jickling, Jeff June, David S Liebeskind, Ted J Lowenkopf, Joseph B Miller, John O'Neill, Tim L Schoonover, Frank R Sharp, W Frank Peacock
Acute ischemic stroke affects over 800,000 US adults annually, with hundreds of thousands more experiencing a transient ischemic attack. Emergent evaluation, prompt acute treatment, and identification of stroke or TIA (transient ischemic attack) etiology for specific secondary prevention are critical for decreasing further morbidity and mortality of cerebrovascular disease. The Biomarkers of Acute Stroke Etiology (BASE) study is a multicenter observational study to identify serum markers defining the etiology of acute ischemic stroke...
May 5, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28452132/blood-based-protein-biomarkers-for-stroke-differentiation-a-systematic-review
#5
REVIEW
Shubham Misra, Amit Kumar, Pradeep Kumar, Arun K Yadav, Dheeraj Mohania, Awadh K Pandit, Kameshwar Prasad, Deepti Vibha
BACKGROUND: Computed Tomography (CT) scan is the mainstay for diagnosis of stroke; but the facility of CT scan is not easily available. A blood based biomarker approach is required to distinguish ischemic stroke (IS) from hemorrhagic stroke (HS) in pre-hospital settings. OBJECTIVE: To conduct a systematic review of diagnostic utility of blood biomarkers for differential diagnosis of stroke. METHODS: A comprehensive literature search was carried out till March 07, 2017 in PubMed, Cochrane, Medline, OVID, and Google Scholar databases...
April 28, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28446746/peripheral-blood-akap7-expression-as-an-early-marker-for-lymphocyte-mediated-post-stroke-blood-brain-barrier-disruption
#6
Grant C O'Connell, Madison B Treadway, Ashley B Petrone, Connie S Tennant, Noelle Lucke-Wold, Paul D Chantler, Taura L Barr
Our group recently identified 16 genes whose peripheral blood expression levels are differentially regulated in acute ischemic stroke. The purpose of this study was to determine whether the early expression levels of any of these 16 genes are predictive for post-stroke blood brain barrier (BBB) disruption. Transcriptional expression levels of candidate genes were measured in peripheral blood sampled from ischemic stroke patients at emergency department admission, and BBB permeability was assessed at 24 hour follow up via perfusion-weighted imaging...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28366792/serum-macrophage-migration-inhibitory-factor-concentrations-correlate-with-prognosis-of-traumatic-brain-injury
#7
Ding-Bo Yang, Wen-Hua Yu, Xiao-Qiao Dong, Zu-Yong Zhang, Quan Du, Qiang Zhu, Zhi-Hao Che, Hao Wang, Yong-Feng Shen, Li Jiang
BACKGROUND: Macrophage migration inhibitory factor (MIF) is a well-known pro-inflammatory cytokine. Serum MIF concentrations are associated with the severity and prognosis of ischemic stroke. METHODS: In this prospective, observational study, white blood cell (WBC) count and serum concentrations of C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α) and MIF among 108 severe traumatic brain injury (TBI) patients and 108 controls were measured...
March 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28359134/circulating-extracellular-dna-cause-or-consequence-of-thrombosis
#8
Miguel Jiménez-Alcázar, Natalie Kim, Tobias A Fuchs
Thrombosis leads to ischemic organ damage in cardiovascular and thromboembolic diseases. Neutrophils promote thrombosis in vitro and in vivo by releasing neutrophil extracellular traps (NETs). NETs are composed of DNA filaments coated with histones and neutrophil enzymes such as myeloperoxidase (MPO). Circulating extracellular DNA (ceDNA) is widely used as a surrogate marker to monitor NET formation in thrombosis. This narrative review summarizes the association of ceDNA with human thrombosis. Levels of ceDNA indicate the extent and outcome of several cardiovascular and thromboembolic diseases, including myocardial infarction, stroke, and venous thromboembolism...
March 30, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28357403/effect-of-prior-atorvastatin-treatment-on-the-frequency-of-hospital-acquired-pneumonia-and-evolution-of-biomarkers-in-patients-with-acute-ischemic-stroke-a-multicenter-prospective-study
#9
Yuetian Yu, Cheng Zhu, Chunyan Liu, Yuan Gao
Objective. To investigate whether prior treatment of atorvastatin reduces the frequency of hospital acquired pneumonia (HAP). Methods. Totally, 492 patients with acute ischemic stroke and Glasgow Coma Scale ≤ 8 were enrolled in this study. Subjects were assigned to prior atorvastatin treatment group (n = 268, PG) and no prior treatment group (n = 224, NG). All the patients were given 20 mg atorvastatin every night during their hospital stay. HAP frequency and 28-day mortality were measured. Levels of inflammatory biomarkers [white blood cell (WBC), procalcitonin (PCT), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6)] were tested...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28348074/prognostic-value-of-inflammatory-and-cardiovascular-biomarkers-for-prediction-of-90-day-all-cause-mortality-after-acute-ischemic-stroke-results-from-the-linz-stroke-unit-study
#10
Benjamin Dieplinger, Christof Bocksrucker, Margot Egger, Christian Eggers, Meinhard Haltmayer, Thomas Mueller
BACKGROUND: Early outcome prediction after acute ischemic stroke is of great interest. The aim of our study was to evaluate the prognostic value of blood biomarkers in patients with acute ischemic stroke. METHODS: We measured interleukin-6 (IL-6), d-dimer, amino-terminal pro-B-type natriuretic peptide (NT-proBNP), high-sensitivity cardiac troponin T, and soluble ST2 plasma concentrations within 24 h after admission to our stroke unit in 721 consecutive acute ischemic stroke patients...
March 27, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28345376/lessons-from-metabonomics-on-the-neurobiology-of-stroke
#11
Mahim I Qureshi, Panagiotis A Vorkas, Alexander P Coupland, I Harri Jenkins, Elaine Holmes, Alun H Davies
The application of metabonomic science to interrogate stroke permits the study of metabolite entities, small enough to cross the blood-brain barrier, that provide insight into neuronal dysfunction, and may serve as reservoirs of biomarker discovery. This systematic review examines the applicability of metabolic profiling in ischemic stroke research. Six human studies utilizing metabolic profiling to analyze biofluids from ischemic stroke patients have been included, employing (1)H-NMR and/or mass spectrometry to analyze plasma, serum, and/or urine in a targeted or untargeted fashion...
October 1, 2016: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/28317235/astrocyte-specific-insulin-like-growth-factor-1-gene-transfer-in-aging-female-rats-improves-stroke-outcomes
#12
Andre K Okoreeh, Shameena Bake, Farida Sohrabji
Middle aged female rats sustain larger stroke infarction and disability than younger female rats. This older group also shows age-related reduction of insulin like growth factor (IGF)-1 in serum and in astrocytes, a cell type necessary for poststroke recovery. To determine the impact of astrocytic IGF-1 for ischemic stroke, these studies tested the hypothesis that gene transfer of IGF-1 to astrocytes will improve stroke outcomes in middle aged female rats. Middle aged (10-12 month old), acyclic female rats were injected with recombinant adeno-associated virus serotype 5 (AAV5) packaged with the coding sequence of the human (h)IGF-1 gene downstream of an astrocyte-specific promoter glial fibrillary acidic protein (GFAP) (AAV5-GFP-hIGF-1) into the striatum and cortex...
July 2017: Glia
https://www.readbyqxmd.com/read/28289400/increased-circulating-exosomal-mirna-223-is-associated-with-acute-ischemic-stroke
#13
Yajing Chen, Yaying Song, Jun Huang, Meijie Qu, Yu Zhang, Jieli Geng, Zhijun Zhang, Jianrong Liu, Guo-Yuan Yang
Recent studies have demonstrated that exosomal microRNAs (miRNAs) are novel biomarkers and therapeutic targets for various diseases including vascular disease. However, specific exosomal miRNAs expression in stroke patients has not been reported yet. Here, we explored whether circulating exosomal miRNAs can serve as potential biomarkers for the diagnosis of acute ischemic stroke and discussed the potential for clinical application. Blood samples were collected from acute ischemic stroke patients within the first 72 h (n = 50)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28275651/platelet-microparticles-a-biomarker-for-recanalization-in-rtpa-treated-ischemic-stroke-patients
#14
Andrew Bivard, Lisa F Lincz, Jane Maquire, Mark Parsons, Christopher Levi
OBJECTIVES: Identification of a biomarker for acute recanalization could have significant clinical impact. METHODS: We prospectively collected baseline, 24-h, and 90-day clinical and imaging data from consecutive ischemic stroke patients who fulfilled standard clinical eligibility criteria for treatment with intravenous recombinant tissue plasminogen activator (rtPA). Computed tomography angiography was acquired at 24 h and assessed using the thrombolysis is myocardial infarction (TIMI) scale with a score of 2b/3 indicating recanalization...
March 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28271679/the-diagnostic-value-of-scube1-in-acute-appendicitis
#15
E Sonmez, A Dursun, B Gulen, H Metin, O F Ozer
BACKGROUND: SCUBE1 has recently been studied as a diagnostic biomarker for acute coronary syndrome, ischemic stroke, and acute mesenteric ischemia. The aim of this study is to evaluate the value of SCUBE1 and routine parameters used in patients diagnosed with acute appendicitis. METHODS: Of the 150 patients admitted to the emergency department whose initial diagnosis were acute appendicitis (AA), 103 patients were excluded from the study for various reasons. Forty-seven patients with a definitive diagnose of AA and 43 volunteers were enrolled in the study...
March 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28265014/recast-remote-ischemic-conditioning-after-stroke-trial-a-pilot-randomized-placebo-controlled-phase-ii-trial-in-acute-ischemic-stroke
#16
Timothy J England, Amanda Hedstrom, Saoirse O'Sullivan, Richard Donnelly, David A Barrett, Sarir Sarmad, Nikola Sprigg, Philip M Bath
BACKGROUND AND PURPOSE: Repeated episodes of limb ischemia and reperfusion (remote ischemic conditioning [RIC]) may improve outcome after acute stroke. METHODS: We performed a pilot blinded placebo-controlled trial in patients with acute ischemic stroke, randomized 1:1 to receive 4 cycles of RIC within 24 hours of ictus. The primary outcome was tolerability and feasibility. Secondary outcomes included safety, clinical efficacy (day 90), putative biomarkers (pre- and post-intervention, day 4), and exploratory hemodynamic measures...
March 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28253992/molecular-links-and-biomarkers-of-stroke-vascular-dementia-and-alzheimer-s-disease
#17
M Vijayan, S Kumar, J S Bhatti, P H Reddy
Stroke is a very common neurological disease, and it occurs when the blood supply to part of the brain is interrupted and the subsequent shortage of oxygen and nutrients causes damage to the brain tissue. Stroke is the second leading cause of death and the third leading cause of disability-adjusted life years. The occurrence of stroke increases with age, but anyone at any age can suffer a stroke. Stroke can be broadly classified in two major clinical types: ischemic stroke (IS) and hemorrhagic stroke. Research also revealed that stroke, vascular dementia (VaD), and Alzheimer's disease (AD) increase with a number of modifiable factors, and most strokes can be prevented and/or controlled through pharmacological or surgical interventions and lifestyle changes...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28243834/sodium-tanshinone-iia-sulfonate-enhances-effectiveness-rt-pa-treatment-in-acute-ischemic-stroke-patients-associated-with-ameliorating-blood-brain-barrier-damage
#18
Biying Ji, Fei Zhou, Lijuan Han, Jun Yang, Haijian Fan, Shanshan Li, Jingwei Li, Xin Zhang, Xiaoying Wang, Xiangyan Chen, Yun Xu
Treatment with sodium tanshinone IIA sulfonate (STS) may ameliorate blood-brain barrier (BBB) damage in acute ischemic stroke patients receiving recombinant tissue plasminogen activator (rt-PA) thrombolysis and improve stroke patients' outcome. This randomized, single-center, placebo-controlled clinical trial investigated the potential effects and underlying mechanisms of STS. Forty-two acute ischemic stroke patients receiving intravenous rt-PA thrombolysis were randomized to intravenous administration either with STS (60 mg/day) (n = 21) or with equivalent volume of saline as a placebo (n = 21) after randomization for 10 days...
February 27, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28229841/-neuroimaging-and-blood-biomarkers-in-functional-prognosis-after-stroke
#19
REVIEW
João Paulo Branco, Joana Santos Costa, João Sargento-Freitas, Sandra Oliveira, Bruno Mendes, Jorge Laíns, João Pinheiro
INTRODUCTION: Stroke remains one of the leading causes of morbidity and mortality around the world and it is associated with an important long-term functional disability. Some neuroimaging resources and certain peripheral blood or cerebrospinal fluid proteins can give important information about etiology, therapeutic approach, follow-up and functional prognosis in acute ischemic stroke patients. However, among the scientific community, there is currently more interest in the stroke vital prognosis over the functional prognosis...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28222567/immune-biomarkers-for-the-diagnosis-of-mild-traumatic-brain-injury
#20
Ashley B Petrone, Valerie Gionis, Richard Giersch, Taura L Barr
BACKGROUND: In 2010, there were approximately 2.2 million emergency room visits associated with traumatic brain injury (TBI), with 80 percent diagnosed as mild TBI or concussion. In addition, there are a large number of TBIs, especially mild TBIs, which go either unreported by patients or initially undiagnosed by clinicians. Our team has previously identified a panel of immune-related genes that can diagnose ischemic stroke at triage, and due to shared pathophysiological mechanisms of TBI and stroke, we hypothesized that this panel of genes may also be utilized for the diagnosis of TBI...
February 10, 2017: NeuroRehabilitation
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