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Ischemic stroke biomarkers in blood

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https://www.readbyqxmd.com/read/28366792/serum-macrophage-migration-inhibitory-factor-concentrations-correlate-with-prognosis-of-traumatic-brain-injury
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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...
March 20, 2017: Glia
https://www.readbyqxmd.com/read/28289400/increased-circulating-exosomal-mirna-223-is-associated-with-acute-ischemic-stroke
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/28129736/identification-of-new-biosignatures-for-clinical-outcomes-in-stable-coronary-artery-disease-the-study-protocol-and-initial-observations-of-a-prospective-follow-up-study-in-taiwan
#15
Hsin-Bang Leu, Wei-Hsian Yin, Wei-Kung Tseng, Yen-Wen Wu, Tsung-Hsien Lin, Hung-I Yeh, Kuan-Cheng Chang, Ji-Hung Wang, Chau-Chung Wu, Jaw-Wen Chen
BACKGROUND: Either classic or novel biomarkers have not been well investigated for clinical outcomes of coronary artery disease (CAD) in Asian people especially ethnic Chinese. We reported here a prospective national-based follow-up study that aims to elucidate the clinical profiles and to identify the new biosignatures (especially the non-lipid profile and inflammatory biomakers) for future clinical outcomes in a sizable cohort of stable CAD patients in Taiwan. METHODS: A total of 2500 CAD patients under stable condition after successful percutaneous coronary intervention will be enrolled for clinical data collection and blood/urine sampling in northern, southern, western, or eastern part of Taiwan between 2012 and 2017...
January 28, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28088349/stroke-biomarkers-in-clinical-practice-a-critical-appraisal
#16
REVIEW
Geelyn J L Ng, Amy M L Quek, Christine Cheung, Thiruma V Arumugam, Raymond C S Seet
Biomarkers provide critical mechanistic insights to key biologic processes that occur during cerebral ischemia which, when carefully applied, can improve clinical decision-making in acute stroke management. The translation of a blood-based biomarker in ischemic stroke to clinical practice is challenging, in part, due to the complexity of ischemic stroke pathogenesis and the presence of a blood-brain barrier that restricts the release of brain-specific markers into the circulation. The pathologic and clinical aspects of ischemic stroke are described in this review, where a non-exhaustive list of biomarkers that interrogate different aspects of ischemic stroke such as oxidative damage, inflammation, thrombus formation, cardiac function and brain injury are described...
January 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28079139/blood-occludin-level-as-a-potential-biomarker-for-early-blood-brain-barrier-damage-following-ischemic-stroke
#17
Rong Pan, Kewei Yu, Theodore Weatherwax, Handong Zheng, Wenlan Liu, Ke Jian Liu
Concern about intracerebral hemorrhage (ICH) is the primary reason for withholding tPA therapy from patients with ischemic stroke. Early blood brain barrier (BBB) damage is the major risk factor for fatal post-thrombolysis ICH, but rapidly assessing BBB damage before tPA administration is highly challenging. We recently reported that ischemia induced rapid degradation of tight junction protein occludin in cerebromicrovessels. The present study investigates whether the cleaved occludin is released into the blood stream and how blood occludin levels correlate to the extent of BBB damage using a rat model of ischemic stroke...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28051279/carotid-intima-media-thickness-and-blood-biomarkers-of-atherosclerosis-in-patients-after-stroke-or-myocardial-infarction
#18
Iwona Kurkowska-Jastrzebska, Michał A Karlinski, Beata Błazejewska-Hyzorek, Iwona Sarzynska-Dlugosz, Krzysztof J Filipiak, Anna Czlonkowska
AIM: To test if circulating levels of markers of inflammation, endothelial function, and chronic infections, as well as association between these markers and carotid intima media thickness (CIMT), depend on the stage of atherosclerosis expressed as a history of a major vascular event. METHODS: The associations were analyzed separately in 75 healthy controls, 79 patients 3-6 months after the first-ever non-cardioembolic ischemic stroke (IS), and 37 patients 3-6 months after the first-ever myocardial infarction (MI)...
December 31, 2016: Croatian Medical Journal
https://www.readbyqxmd.com/read/27905388/-prognostic-biochemical-markers-of-thrombolytic-therapy-in-ischemic-stroke
#19
O A Kicherova, L I Reikhert, V G Skorikova, S A Semeshko
AIM: To assess prognostic value of endothelial dysfunction, endogenous intoxication and oxidative stress in the acute period of ischemic stroke (II) at the stage of making a decision on using thrombolytic therapy (TLT) as well during the follow-up in order to personalize treatment. MATERIAL AND METHODS: The study included 57 patients stratified into control group 1 (n=29) and TLT group (n=28). Contents of C-reactive protein (Nsrb), matrixmetalloproteinase-9 (MMP-9) erythrocyte lipid peroxidation products were measured in the blood of patients...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27904159/copeptin-as-a-biomarker-for-prediction-of-prognosis-of-acute-ischemic-stroke-and-transient-ischemic-attack-a-meta-analysis
#20
Qian Xu, Yunfan Tian, Hao Peng, Hongmei Li
This meta-analysis aimed to investigate the predictive effect of copeptin as a biomarker for the prognosis of acute ischemic stroke and transient ischemic attack. Electronic databases including PubMed, Medline, EMBASE, Web of Science and Cochrane Central were searched for studies assessing the association of copeptin level on admission with prognosis of acute ischemic stroke and transient ischemic attack. The Newcastle-Ottawa Quality assessment scale for cohort study was used to evaluate quality. A total of 1976 acute ischemic stroke patients from 6 studies were included, and 59% of patients were male...
December 1, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
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