scholarly journals Association between Oxidative Stress and Outcome in Different Subtypes of Acute Ischemic Stroke

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Nai-Wen Tsai ◽  
Ya-Ting Chang ◽  
Chi-Ren Huang ◽  
Yu-Jun Lin ◽  
Wei-Che Lin ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Small Vessel Disease ◽  
Large Vessel ◽  
Small Vessel ◽  
Tbars Level ◽  
Vessel Disease ◽  
Free Thiol ◽  
Large Vessel Disease

Objectives. This study investigated serum thiobarbituric acid-reactive substances (TBARS) and free thiol levels in different subtypes of acute ischemic stroke (AIS) and evaluated their association with clinical outcomes.Methods. This prospective study evaluated 100 AIS patients, including 75 with small-vessel and 25 with large-vessel diseases. Serum oxidative stress (TBARS) and antioxidant (thiol) were determined within 48 hours and days 7 and 30 after stroke. For comparison, 80 age- and sex-matched participants were evaluated as controls.Results. Serum TBARS was significantly higher and free thiol was lower in stroke patients than in the controls on days 1 and 7 after AIS. The level of free thiol was significantly lower in the large-vessel disease than in the small-vessel disease on day 7 after stroke. Using the stepwise logistic regression model for potential variables, only stroke subtype, NIHSS score, and serum TBARS level were independently associated with three-month outcome. Higher TBARS and lower thiol levels in the acute phase of stroke were associated with poor outcome.Conclusions. Patients with large-vessel disease have higher oxidative stress but lower antioxidant defense compared to those with small-vessel disease after AIS. Serum TBARS level at the acute phase of stroke is a potential predictor for three-month outcome.

LDL phenotype B and other lipid abnormalities in patients with large vessel disease and small vessel disease

2003 ◽  
Vol 214 (1-2) ◽  
pp. 11-16 ◽  
Author(s):  
Agnieszka Slowik ◽  
Tomasz Iskra ◽  
Wojciech Turaj ◽  
Jadwiga Hartwich ◽  
Aldona Dembinska-Kiec ◽  
...  
Keyword(s):  
Small Vessel Disease ◽  
Large Vessel ◽  
Small Vessel ◽  
Vessel Disease ◽  
Lipid Abnormalities ◽  
Large Vessel Disease

scholarly journals High On-Treatment Platelet Reactivity Affects the Extent of Ischemic Lesions in Stroke Patients Due to Large-Vessel Disease

2020 ◽  
Vol 9 (1) ◽  
pp. 251 ◽  
Author(s):  
Adam Wiśniewski ◽  
Joanna Sikora ◽  
Agata Sławińska ◽  
Karolina Filipska ◽  
Aleksandra Karczmarska-Wódzka ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Small Vessel Disease ◽  
Platelet Reactivity ◽  
Volume Measurement ◽  
Large Vessel ◽  
Vessel Disease ◽  
Fluid Attenuated Inversion Recovery ◽  
The Brain ◽  
Large Vessel Disease

Background: Excessive platelet activation and aggregation plays an important role in the pathogenesis of ischemic stroke. Correlation between platelet reactivity and ischemic lesions in the brain shows contradictory results and there are not enough data about the potential role of stroke etiology and its relationships with chronic lesions. The aim of this study is to assess the relationship between platelet reactivity and the extent of ischemic lesions with the particular role of etiopathogenesis. Methods: The study involved 69 patients with ischemic stroke, including 20 patients with large-vessel disease and 49 patients with small-vessel disease. Evaluation of platelet reactivity was performed within 24 h after the onset of stroke using two aggregometric methods (impedance and optical), while ischemic volume measurement in the brain was performed using magnetic resonance imaging (in diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) sequences) at day 2–5 after the onset of stroke. Results: In the large-vessel disease subgroup, a correlation was found between platelet reactivity and acute ischemic focus volume (correlation coefficient (R) = 0.6858 and p = 0.0068 for DWI; R = 0.6064 and p = 0.0215 for FLAIR). Aspirin-resistant subjects were significantly more likely to have a large ischemic focus (Odds Ratio (OR) = 45.00, 95% Confidence Interval (CI) = 1.49–135.36, p = 0.0285 for DWI; OR = 28.00, 95% CI = 1.35–58.59, p = 0.0312 for FLAIR) than aspirin-sensitive subjects with large-vessel disease. Conclusion: In patients with ischemic stroke due to large-vessel disease, high on-treatment platelet reactivity affects the extent of acute and chronic ischemic lesions.

scholarly journals Imaging Markers of Brain Frailty and Outcome in Patients With Acute Ischemic Stroke

Stroke ◽  
2021 ◽  
Author(s):  
Ning Bu ◽  
Mohamed Salah Khlif ◽  
Robin Lemmens ◽  
Anke Wouters ◽  
Jochen B. Fiebach ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Functional Outcome ◽  
Small Vessel Disease ◽  
Small Vessel ◽  
Excellent Outcome ◽  
Vessel Disease ◽  
Brain Parenchymal Fraction ◽  
Imaging Markers ◽  
Brain Parenchymal

Background and Purpose: Functional outcome after stroke may be related to preexisting brain health. Several imaging markers of brain frailty have been described including brain atrophy and markers of small vessel disease. We investigated the association of these imaging markers with functional outcome after acute ischemic stroke. Methods: We retrospectively studied patients with acute ischemic stroke enrolled in the AXIS-2 trial (AX200 in Ischemic Stroke Trial), a randomized controlled clinical trial of granulocyte colony-stimulating factor versus placebo. We assessed the ratio of brain parenchymal volume to total intracerebral volumes (ie, the brain parenchymal fraction) and total brain volumes from routine baseline magnetic resonance imaging data obtained within 9 hours of symptom onset using the unified segmentation algorithm in SPM12. Enlarged perivascular spaces, white matter hyperintensities, lacunes, as well as a small vessel disease burden, were rated visually. Functional outcomes (modified Rankin Scale score) at day 90 were determined. Logistic regression was used to test associations between brain imaging features and functional outcomes. Results: We enrolled 259 patients with a mean age of 69±12 years and 46 % were female. Increased brain parenchymal fraction was associated with higher odds of excellent outcome (odds ratio per percent increase, 1.078 [95% CI, 1.008–1.153]). Total brain volumes and small vessel disease burden were not associated with functional outcome. An interaction between brain parenchymal fraction and large vessel occlusion on excellent outcome was not observed. Conclusions: Global brain health, as assessed by brain parenchymal fraction on magnetic resonance imaging, is associated with excellent functional outcome after ischemic stroke. REGISTRATION: URL: https://www.clinicaltrials.gov . Unique identifier: NCT00927836.

scholarly journals Pre-micro RNA polymorphism detection in small versus large vessel disease in stroke patients

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
H H Elkhawas ◽  
H H Afify ◽  
H Shokri ◽  
E Hassan ◽  
A Alzahaby
Keyword(s):  
Small Vessel Disease ◽  
Susceptibility Gene ◽  
Large Vessel ◽  
Small Vessel ◽  
Stroke Patients ◽  
Functional Polymorphisms ◽  
Vessel Disease ◽  
Stroke Subtypes ◽  
Micro Rnas ◽  
Large Vessel Disease

Abstract Article Outline Abstract Introduction Patients and methods Procedure Statistical analysis Results Discussion Conclusion References Background Cerebrovascular accidents are the second leading cause of death and the third leading cause of disability worldwide. The methods currently available for diagnosis and prognosis of cerebral ischaemia still require further improvements. Micro-RNAs (small non-coding RNAs) have been recently reported as useful biomarkers in diseases such as cancer and diabetes. Further research concerned with microRNA (miRNA) profiling from peripheral blood to detect and identify characteristic patterns in ischaemic stroke is crucial. Aim of the work This study aims to investigate the association between three potentially functional polymorphisms in pre-miRNAs and stroke subtypes (small vessel disease and large vessel disease) in a sample of Egyptian stroke patients. Patients and Methods This is a cross sectional study conducted in Ain Shams University Hospitals in which 81 patients presenting with cerebrovascular stroke fulfilling criteria of small vessel disease (SVD) or large vessel disease (LVD) according to TOAST [2] classification in the period from March 2018 to August 2018 were included. Blood samples were withdrawn for DNA extraction to investigate the association between three potentially functional polymorphisms (rs2910164, rs11614913, and rs3746444) in pre-miRNAs (hsamiR-146a, hsa-miR-196a2, and hsa-miR-499, respectively). Results Smoking, hypertension and diabetes were significant value in both stroke subtypes. Meanwhile, age and gender showed no significance between both stroke subtypes. Conclusion Ischemic stroke has polygenic basis, but identification of stroke susceptibility gene and quantification of associated risks has been hindered by conflicting results from different studies.

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