A hemodynamic screening tool for symptomatic internal jugular vein stenosis in J3 segment.

ObjectivesThe aim of this study was to formulate an ultrasonic diagnostic criterion for stenosis in the J3 segment of internal jugular vein (IJV) and probe into the effects of stenosis in the J3 segment on intracranial pressure (ICP) and the cerebral drainage pattern.MethodsParticipants who exhibited narrowing in the J3 segment of IJV on neuroimaging and reported symptoms correlated with IJV stenosis (IJVS) were enlisted from Xuanwu Hospital. Clinical data were retrospectively amassed.

Steroids combined with anticoagulant in acute/subacute severe cerebral venous thrombosis.

Background: Inflammation plays a critical role in severe cerebral venous thrombosis (CVT) pathogenesis, but the benefits of anti-inflammatory therapies remain unclear. This study aimed to investigate the association between steroid therapy combined with anticoagulation and the prognosis of acute/subacute severe CVT patients.

Methods: A prospective cohort study enrolled patients with acute/subacute severe CVT at Xuanwu Hospital (July 2020-January 2024).

Recent advances in the prevention of secondary ischemic stroke: A narrative review.

Stroke remains a significant contributor to global morbidity and mortality, with acute ischemic stroke comprising the majority of cases. Secondary stroke, the recurrent stroke, is often more severe and linked to worse functional outcomes and increased mortality. The secondary prevention of ischemic stroke is crucial for reducing the risk of recurrent events.

Stroke Etiology was associated with Tirofiban Efficacy in Acute Ischemic Stroke Without Endovascular Treatment: A Pre-specified Subgroup Analysis of the TREND Trial.

Background: Different stroke etiologies are associated with varied incidences of early neurological deterioration (END) in patients with acute ischemic stroke (AIS). The TREND trial demonstrated the efficacy of tirofiban in preventing END in patients with AIS. Herein, we conducted a pre-specified subgroup analysis of this trial data to investigate whether stroke etiologies influenced the effects of tirofiban.

Progress and Application Prospects of Forensic Molecular Imaging Technology in Living Individual Examination.

To propose the definition of forensic molecular imaging (FMI) and to utilize molecular imaging techniques to seek effective solutions to important issues in the field of forensic medicine, such as forensic psychiatry, drug-related damages, internet gaming addiction, and stress-induced injuries. FMI is an emerging interdisciplinary field. It is in its infancy in China and faces certain problems and challenges, such as a shortage of skilled professionals and a lack of standardization.

Direct oral anticoagulants versus vitamin K antagonists for cerebral venous thrombosis (DOAC-CVT): an international, prospective, observational cohort study.

Background: There is an unmet need for high-quality data from prospective studies on the safety and effectiveness of direct oral anticoagulants (DOACs) for the treatment of cerebral venous thrombosis (CVT). We aimed to compare the safety and effectiveness of DOACs versus vitamin K antagonists (VKAs) for the treatment of CVT in a setting that reflects daily clinical practice.

Methods: DOAC-CVT was an international, prospective, observational cohort study done in 65 hospitals in 23 countries across five continents.

The causal association between lipid-lowering strategies and risk of intracranial aneurysms: A drug-target Mendelian randomization study.

Background: Observational studies have suggested potential correlations between unfavorable lipid profiles and the occurrence of intracranial aneurysms (IAs), proposing that lipid-lowering therapies might curb IA progression and prevent rupture. This study aimed to explore the causal impacts of lipid-reducing strategies on the risk of IAs.

Methods: We employed 3 genetic tools as proxies for our exposures and assessed causal effects using outcome genome-wide association study data from the FinnGen Biobank.

Dumbbell-shaped thrombectomy device for cerebral venous sinus thrombus removal with controllable axial and longitudinal maneuverability.

Cerebral venous sinus thrombosis (CVST) is frequently observed in younger adults and features in large thrombus volume. Due to the triangular-like cross-sectional shape and large diameter of the superior sagittal sinus, all the commercially available artery stent retrievers are not suitable for venous vessels. In this study, a dumbbell-like stent was designed and fabricated by 3D braided technology using NiTi wires; it was manually rotatable and stretchable with controlled length/diameter ratios (2.

Rhythmic deep-brain magnetic stimulation promotes angiogenesis and inhibits apoptosis by regulating the JAK2/STAT3 pathway in rats with superior sagittal sinus thrombosis.

The purpose of this study is to investigate the therapeutic value of rhythmic deep-brain magnetic stimulation (rDMS) and its potential mechanisms in Sprague-Dawley rats with superior sagittal sinus thrombosis (SSST). Rats were randomly allocated into Sham, SSST, SSST + rDMS and SSST + rDMS + AG490 group (N = 27 each). After 2 weeks of rDMS treatment, the motor function of rats was assessed using the open field, rotarod, and beam balance tests.

Effects of tirofiban in preventing neurological deterioration in acute ischemic stroke with intracranial artery stenosis: A post hoc analysis of the TREND Trial.

Introduction: The degree of culprit artery stenosis affects the risk of early neurological deterioration (END) after acute ischemic stroke (AIS). The TREND trial demonstrated the efficacy of tirofiban in preventing END in patients with AIS. We aimed to investigate whether the degree of intracranial artery stenosis affects the efficacy of tirofiban in preventing END in patients with AIS.

Understanding Drug Interactions in Antiplatelet Therapy for Atherosclerotic Vascular Disease: A Systematic Review.

Background: Antiplatelet drugs are a cornerstone in managing atherosclerotic vascular disease (ASVD). However, their interactions with other medications present significant challenges to treatment efficacy and safety. Patients with ASVD often require multiple treatment regimens due to complex comorbidities, which increases the risk of drug-drug interactions (DDIs).

Normobaric hyperoxia combined with endovascular treatment for acute ischaemic stroke in China (OPENS-2 trial): a multicentre, randomised, single-blind, sham-controlled trial.

Background: Endovascular treatment improves the recanalisation rate for patients with acute ischaemic stroke; however, even with endovascular treatment, approximately half of patients do not have a favourable functional outcome. We aimed to evaluate the effect of normobaric hyperoxia combined with endovascular treatment on functional outcomes up to 90 days after treatment in patients who had an acute ischaemic stroke with large-vessel occlusion.

Methods: In this multicentre, randomised, single-blind, sham-controlled trial, patients aged 18-80 years presenting within 6 h of acute ischaemic stroke attributed to large-vessel occlusion in anterior circulation, who were candidates for endovascular treatment, were recruited from 26 comprehensive stroke centres in China.

The mechanisms of efficacy and safety of Ginkgo biloba extract in acute ischemic stroke: a real-world study.

Background And Purpose: Although Ginkgo biloba extract (GBE) has been shown to be effective in treating acute ischemic stroke (AIS) in several clinical trials, concerns regarding adverse events, such as bleeding, have been raised. This study aimed to investigate the mechanisms by which GBE improves AIS prognosis, particularly its impact on platelet activity, coagulation function, and the potential risk of bleeding.

Methods: This real-world study consecutively enrolled 99 patients: 49 with internal jugular venous stenosis (IJVS) treated with GBE; 33 with AIS treated with GBE and low-dose aspirin; and 17 with AIS treated with low-dose aspirin alone.

MgSO as a novel hypothermia infusion solution promotes ischemic stroke recovery through Ca regulation of neurovascular units.

The neuroprotection of acute ischemic stroke (AIS) patients to alleviate the reperfusion injury is a long-standing problem. Although the intra-arterial selective cooling saline infusion (IA-SCSI) is a promising technique to improve the outcome of AIS, the clinical results are not sufficiently satisfactory. Magnesium-containing solutions such as magnesium sulfate (MgSO) can protect cells by modulating the intracellular Ca content in damaged cells, suggesting that they could be hypothermia infusion solution.

Neurological Deterioration after Acute Ischemic Stroke: A Common Phenomenon with Important Implications.

Background: Neurological deterioration following acute ischemic stroke (AIS) is a common clinical phenomenon associated with poor clinical outcomes. However, neurological deterioration can be attributed to diverse mechanisms in different clinical contexts. Further, there is still a lack of standard and well-recognized definitions of neurological deterioration, which compounds the complexities and challenges of its early identification and management of neurological deterioration.

The causal relationship between steroid hormones and risk of stroke: evidence from a two-sample Mendelian randomization study.

It is unclear how steroid hormones contribute to stroke, and conducting randomized controlled trials to obtain related evidence is challenging. Therefore, Mendelian randomization (MR) technique was employed in this study to examine this association. Through genome-wide association meta-analysis, the genetic variants of steroid hormones, including testosterone/17β-estradiol (T/E2) ratio, aldosterone, androstenedione, progesterone, and hydroxyprogesterone, were acquired as instrumental variables.

The Impact of Hematologic Disorders on the Severity of Cerebral Venous Sinus Thrombosis: A Comparative Study.

Hematologic diseases are considered important contributors to cerebral venous sinus thrombosis (CVST) cases. This retrospective study aims to compare the difference of the clinical and radiological characters between CVST patients with and without hematologic diseases. Consecutive hospitalized CVST patients with hematologic disorders constituted the hematologic disorder group, while that without identifiable risk factors comprised the control group in this study.

Therapeutic potential of mesenchymal stem cell-derived extracellular vesicles in ischemic stroke: A meta-analysis of preclinical studies.

Background: Ischemic stroke (IS) remains a significant global health burden, necessitating the development of novel therapeutic strategies. This study aims to systematically evaluate the therapeutic effects of mesenchymal stem cell-derived exosomes (MSC-Exos) on IS outcomes in rodent models.

Methods: A comprehensive literature search was conducted across multiple databases to identify studies investigating the effects of MSC-Exos on rodent models of IS.

Single-Cell Insights Into Cellular Response in Abdominal Aortic Occlusion-Induced Hippocampal Injury.

Objective: Ischemia-reperfusion of the abdominal aorta often results in damage to distant organs, such as the heart and brain. This cellular heterogeneity within affected tissues complicates the roles of specific cell subsets in abdominal aorta occlusion model (AAO) injury. However, cell type-specific molecular pathology in the hippocampus after ischemia is poorly understood.

Clinical diagnosis of cerebral amyloid angiopathy related hemorrhage in China: Simplified Edinburgh criteria and Boston criteria version 2.0.

Background: Accurate diagnosis of cerebral amyloid angiopathy (CAA) in surviving patients is indispensable for making treatment decisions and conducting clinical trials. We aimed to evaluate the diagnostic value and clinical utility of the simplified Edinburgh computed tomography (CT) criteria for CAA-related hemorrhage in Chinese patients.

Methods: We analyzed 212 patients with lobar hemorrhage who underwent brain CT and magnetic resonance imaging (MRI) from a multicentre cohort.

Impact of the COVID-19 pandemic on cerebral venous sinus thrombosis in China: a comparative study.

Background: Cerebral venous sinus thrombosis (CVST) is a rare yet significant neurological disorder with high mortality. Understanding its evolving characteristics, risk factors, and outcomes, particularly in Chinese patients after the COVID-19 pandemic, is critical for developing effective preventive and therapeutic strategies.

Methods: A retrospective analysis was conducted on 471 CVST cases from Xuanwu Hospital, comparing data before (2013-2017, n = 243) and after (2021-2023, n = 228) the COVID-19 pandemic.

From Mechanisms to Medicine: Neurovascular Coupling in the Diagnosis and Treatment of Cerebrovascular Disorders: A Narrative Review.

Neurovascular coupling (NVC) refers to the process of local changes in cerebral blood flow (CBF) after neuronal activity, which ensures the timely and adequate supply of oxygen, glucose, and substrates to the active regions of the brain. Recent clinical imaging and experimental technology advancements have deepened our understanding of the cellular mechanisms underlying NVC. Pathological conditions such as stroke, subarachnoid hemorrhage, cerebral small vascular disease, and vascular cognitive impairment can disrupt NVC even before clinical symptoms appear.

Exosomes in Central Nervous System Diseases: A Comprehensive Review of Emerging Research and Clinical Frontiers.

Exosomes, nano-sized lipid bilayer vesicles, have garnered significant attention as mediators of cell communication, particularly within the central nervous system (CNS). Their unique properties, including high stability, low immunogenicity, and the ability to traverse the blood-brain barrier (BBB), position them as promising tools for understanding and addressing CNS diseases. This comprehensive review delves into the biogenesis, properties, composition, functions, and isolation of exosomes, with a particular focus on their roles in cerebrovascular diseases, neurodegenerative disorders, and CNS tumors.