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Objective: To determine whether vascular endothelial growth factor (VEGF) levels are associated with the presence of cerebral microbleeds (CMBs) in patients after acute ischemic stroke.
Design: A cross-sectional study that used blood samples obtained within 24 hours of symptom onset from patients who experienced acute stroke to measure VEGF levels by enzyme immunoassay. A validated CMB rating scale was used to analyze acutely acquired magnetic resonance images, with the rater blind to clinical details and VEGF levels.
Setting: Accident and Emergency Department at University College Hospital, London, England.
Patients: Twenty patients who experienced acute ischemic stroke.
Main Outcome Measures: Presence of CMBs and serum level of VEGF.
Results: Five of the 20 patients with acute ischemic stroke (25%) had CMBs. The median VEGF level in the CMB group was significantly higher than that in the group without CMBs (P = .003).
Conclusion: An increase in vascular permeability secondary to a raised VEGF level may have a role in the genesis of CMBs in patients with acute ischemic stroke.
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http://dx.doi.org/10.1001/archneurol.2012.459 | DOI Listing |
Haematologica
September 2025
Center for Cardiometabolic Science, Christina Lee Brown Envirome Institute, Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky,.
Maintaining a healthy pool of circulating red blood cells (RBCs) is essential for adequate perfusion, as even minor changes in the population can impair oxygen delivery, resulting in serious health complications including tissue ischemia and organ dysfunction. This responsibility largely falls to specialized macrophages in the spleen, known as red pulp macrophages, which efficiently take up and recycle damaged RBCs. However, questions remain regarding how these macrophages are acutely activated to accommodate increased demand.
View Article and Find Full Text PDFStroke
September 2025
Department of Neurology, Yale School of Medicine, New Haven, CT (L.H.S.).
Preclinical stroke research faces a critical translational gap, with animal studies failing to reliably predict clinical efficacy. To address this, the field is moving toward rigorous, multicenter preclinical randomized controlled trials (mpRCTs) that mimic phase 3 clinical trials in several key components. This collective statement, derived from experts involved in mpRCTs, outlines considerations for designing and executing such trials.
View Article and Find Full Text PDFFuture Cardiol
September 2025
Department of Internal Medicine, Valley Health System Graduate Medical Education, Las Vegas, NV, USA.
A 71-year-old black male with a history of hypertension, dyslipidemia, type 2 diabetes, history of bladder cancer status-post resection now in remission, history of multiple transient ischemic attacks, and coronary artery disease (CAD) presented with non-exertional substernal chest pain radiating to the left arm, accompanied by shortness of breath and nausea. Initial evaluation revealed elevated troponins and nonspecific electrocardiogram changes, consistent with non-ST elevation myocardial infarction. Coronary angiography demonstrated severe multivessel disease, including critical left main stenosis.
View Article and Find Full Text PDFJ Neuropsychiatry Clin Neurosci
September 2025
Departments of Radiology, Neurology, and Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY.
Objective: One of the most frequent neuropsychiatric complications after a stroke is poststroke depression (PSD). However, it is unclear whether disparities exist in PSD diagnosis. The authors examined a 10-year trend in PSD by socioeconomic and clinical characteristics.
View Article and Find Full Text PDFCNS Neurosci Ther
September 2025
Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Aims: Sustained neuroinflammation following ischemic stroke impedes post-injury tissue repairment and neurological functional recovery. Developing innovative therapeutic strategies that simultaneously suppress detrimental inflammatory cascades and facilitate neurorestorative processes is critical for improving long-term rehabilitation outcomes.
Methods: We employed a microglia depletion-repopulation paradigm by administering PLX5622 for 7 days post-ischemia; followed by a 7-day withdrawal period to allow microglia repopulation.