Genetic Risk Factors for Perinatal Arterial Ischemic Stroke

Abstract: The cause of perinatal arterial ischemic stroke is unknown in most cases. We explored whether genetic polymorphisms modify the risk of perinatal arterial ischemic stroke. In a population-based case-control study of 1997-2002 births at Kaiser Permanente Northern California, we identified 13 white infants with perinatal arterial ischemic stroke. Control subjects included 86 randomly selected white infants. We genotyped polymorphisms in nine genes involved in inflammation, thrombosis, or lipid metabolism previously linked with stroke, and compared genotype frequencies in case and control individuals. We tested several polymorphisms: tumor necrosis factor-α −308, interleukin-6, lymphotoxin A, factor V Leiden, methyltetrahydrofolate reductase 1298 and 667, prothrombin 20210, and apolipoprotein E ε2 and ε4 alleles. Patients with perinatal arterial ischemic stroke were more likely than control subjects to demonstrate at least one apolipoprotein E ε4 allele (54% vs 25%, P = 0.03). More patients with perinatal arterial ischemic stroke carried two ε4 alleles than did control subjects (15% vs 2%, P = 0.09), although this finding lacked statistical significance. Proinflammatory and prothrombotic polymorphisms were not associated with perinatal arterial ischemic stroke. The apolipoprotein E polymorphism may confer genetic susceptibility for perinatal arterial ischemic stroke. Larger population-based studies are...
Source: Pediatric Neurology - Category: Neurology Authors: Tags: Original Articles Source Type: research

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CONCLUSION: Our data show CAS as a safe procedure also for people older than 75 years in terms of perioperative and long term complications and cerebral events without any significant difference between the different type of stent. Further studies are requested to better clarify its role in symptomatic patients. KEY WORDS: Carotid stenting, Carotid treatment, Old people. PMID: 31182697 [PubMed - in process]
Source: Annali Italiani di Chirurgia - Category: Surgery Tags: Ann Ital Chir Source Type: research
The effect of 220 kHz insonation scheme on rt-PA thrombolytic efficacy in vitro. Phys Med Biol. 2019 Jun 12;: Authors: Kleven RT, Karani KB, Salido NG, Shekhar H, Haworth KJ, Mast TD, Tadesse DG, Holland CK Abstract Ultrasound-enhanced recombinant tissue plasminogen activator (rt-PA) thrombolysis is under development as an adjuvant to ischemic stroke therapy. The goal of this study was to design a pulsed ultrasound (US) exposure scheme that reduced intracranial constructive interference and tissue heating, and maintained thrombolytic efficacy relative to continuous wave (CW) insonation. Three 220-kHz ...
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research
A 60-YEAR-OLD, 88-kg, 165-cm woman presented to a community hospital with heart failure 5 years after mitral valve repair for mitral regurgitation. The patient previously suffered an ischemic stroke and was currently treated with dual antiplatelet therapy. Transesophageal echocardiography revealed severe mitral stenosis with a mean transmitral gradient of 10 mmHg and thickening of the posterior left atrial wall. The patient was then transferred to the authors ’ institution for mitral valve replacement.
Source: Journal of Cardiothoracic and Vascular Anesthesia - Category: Anesthesiology Authors: Tags: Diagnostic Dilemma Source Type: research
AbstractWe sought to investigate the utilization of prasugrel and its association with outcomes relative to clopidogrel in three typical subgroups of ACS in a real-world setting. Prasugrel is superior to clopidogrel for reducing risk of ischemic events in acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI), but is associated with an increased risk of bleeding complications. PROMETHEUS was a retrospective multicenter observational study of 19,913 ACS patients undergoing PCI from 8 centers in the United States between 2010 and 2013. Major adverse cardiovascular events (MACE) were define...
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
Publication date: Available online 7 June 2019Source: Life SciencesAuthor(s): Xintong Wang, Jiaoqi Wang, Xiaohua Shi, Chengliang Pan, Hongyu Liu, Yue Dong, Rui Dong, Jing Mang, Zhongxin XuAbstractAimsExtracellular vesicles (EVs) are vital for information exchange between donor and recipient cells. When cells are stressed (e.g., by oxygen glucose deprivation, OGD), the complex information carried by the EVs is altered by the donor cells. Here, we aimed to analyze the proteomic differences between EVs derived from OGD-damaged cells and EVs derived from undamaged cells to explore the potential mechanisms by which EVs aggravat...
Source: Life Sciences - Category: Biology Source Type: research
This study aimed to elucidate whether combined assessment of LA functional and structural remodeling can predict LAA dysfunction and recurrent cerebrovascular events in patients with acute ischemic stroke. We performed transthoracic and transesophageal echocardiography in 196 patients within 7  days after acute ischemic stroke. Peak systolic LA strain was evaluated using 2D speckle tracking imaging. We defined the ratio of LA peak systolic strain to LA volume index (LAVI) as the LA remodeling index (LARI). All patients were prospectively followed for recurrent cerebrovascular events. We divided patients into four grou...
Source: Heart and Vessels - Category: Cardiology Source Type: research
AbstractData on LA/LAA thrombus resolution after rivaroxaban treatment has not been established. The aim of the present study was to compare the efficacy and safety on the resolution of LA/LAA thrombus between rivaroxaban and warfarin in nonvalvular atrial fibrillation (AF) patients. 80 AF patients with LA/LAA thrombus between January 2013 and June 2016 were randomized divided into warfarin group (n  = 40) and rivaroxaban group (n = 40). Compared to warfarin group, thrombin time (TT; p 
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
Conclusion: We found that Hhcy was an independent risk factor for poor outcome, but not an independent risk factor for HT after thrombolysis in ischemic stroke patients. In addition, there was no significant interaction of Hhcy and hypertension on the clinical outcome or HT after thrombolysis.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
ConclusionK469E polymorphism of ICAM ‐1 gene might be a risk factor for ischemic stroke in Caucasians, which suggested that K469E polymorphism might help in early identification of those at risk and help in primary prevention of ischemic stroke.
Source: Molecular Genetics & Genomic Medicine - Category: Genetics & Stem Cells Authors: Tags: ORIGINAL ARTICLE Source Type: research
Conclusions: AnxA1 affords protection by altering the platelet phenotype in cerebral I/RI from pro-pathogenic to regulatory, and reducing the propensity for platelets to aggregate and cause thrombosis by affecting integrin (αIIbβ3) activation, a previously unknown phenomenon. Thus, our data reveal a novel multi-faceted role for AnxA1 to act both as a therapeutic and a prophylactic drug via its ability to promote endogenous pro-resolving, anti-thrombo-inflammatory circuits in cerebral I/RI. Collectively, these results further advance our knowledge and understanding in the field of platelet and Resolution Biology....
Source: Circulation - Category: Cardiology Authors: Tags: Circulation Source Type: research
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