Factors Influencing Collateral Circulation Formation After Indirect Revascularization for Moyamoya Disease: a Narrative Review
This study summarizes the factors and mechanisms influencing collateral circulation formation after indirect revascularization in Moyamoya disease. (Source: Translational Stroke Research)
Source: Translational Stroke Research - August 17, 2023 Category: Neurology Source Type: research
Deferoxamine Therapy for Hemorrhagic Transformation Following Brain Ischemia
(Source: Translational Stroke Research)
Source: Translational Stroke Research - August 17, 2023 Category: Neurology Source Type: research
Acetylation of p53 in the Cerebral Cortex after Photothrombotic Stroke
Abstractp53 expression and acetylation are crucial for the survival and death of neurons in penumbra. At the same time, the outcome of ischemia for penumbra cells depends largely on the histone acetylation status, but the effect of histone acetyltransferases and deacetylases on non-histone proteins like p53 is largely understudied. With combined in silico and in vitro approach, we have identified enzymes capable of acetylation/deacetylation, distribution, stability, and pro-apoptotic activity of p53 in ischemic penumbra in the course of post-stroke recovery, and also detected involved loci of acetylation in p53. The dynami...
Source: Translational Stroke Research - August 15, 2023 Category: Neurology Source Type: research
Application of Nanozymes and its Progress in the Treatment of Ischemic Stroke
AbstractNanozymes are a new kind of material which has been applied since the beginning of this century, and its birth has promoted the development of chemistry, materials science, and biology. Nanozymes can be used as a substitute for natural enzyme and has a wide range of applications; therefore, it has attracted extensive attention from all sectors of the community, and the number of studies has constantly increasing. In this paper, we introduced the outstanding achievements in the field of nanozymes in recent years from the main function, the construction of nanozyme-based biosensors, and the treatment of ischemic stro...
Source: Translational Stroke Research - August 9, 2023 Category: Neurology Source Type: research
Response to: Aspirin and Subarachnoid Haemorrhage in the UK Biobank
(Source: Translational Stroke Research)
Source: Translational Stroke Research - August 7, 2023 Category: Neurology Source Type: research
Acetylglutamine Differentially Associated with First-Time Versus Recurrent Stroke
The objective of this study was to identify metabolite risk markers that are associated with recurrent stroke. We performed targeted metabolomic profiling of 162 metabolites by liquid chromatography-tandem mass spectrometry in baseline plasma in a stroke case-cohort study nested within the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study, an observational cohort study of 30,239 individuals aged 45 and older enrolled in 2003 –2007. Weighted Cox proportional hazard models were used to identify metabolites that had a differential effect on first-time versus recurrent stroke using an interaction term b...
Source: Translational Stroke Research - August 2, 2023 Category: Neurology Source Type: research
Use of Tirofiban to Prevent Ischemic Events in Patients with CYP2C19 Loss-of-Function Alleles during Flow Diversion of Intracranial Aneurysm: A Multicenter Cohort Study
This study supports CYP2C19 genotyping before flow diversion because LOF alleles increase the risk of ischemic events. Prophylactic use of tirofiban may help reduce ischemic events in LOF allele carriers. (Source: Translational Stroke Research)
Source: Translational Stroke Research - July 31, 2023 Category: Neurology Source Type: research
Neurobehavioral Impairments Predict Specific Cerebral Damage in Rat Model of Subarachnoid Hemorrhage
This study suggests that recurring behavioral testing can accurately predict damage in specific brain regions, which could be developed into a clinical battery for early detection of SAH damage in humans, potentially improving early treatment and outcomes. (Source: Translational Stroke Research)
Source: Translational Stroke Research - July 26, 2023 Category: Neurology Source Type: research
Clopidogrel Is Associated with Reduced Likelihood of Aneurysmal Subarachnoid Hemorrhage: a Multi-Center Matched Retrospective Analysis
We present, to the best of our knowledge, the first large-scale multi-institutional analysis suggesting clopidogrel use is protective against intracranial aneurysm rupture. It is our hope that these data will guide future investigation, revealing the pathophysiologic underpinning of this association. (Source: Translational Stroke Research)
Source: Translational Stroke Research - July 20, 2023 Category: Neurology Source Type: research
TRPC Channels Activated by G Protein-Coupled Receptors Drive Ca2+ Dysregulation Leading to Secondary Brain Injury in the Mouse Model
AbstractCanonical transient receptor potential (TRPC) non-selective cation channels, particularly those assembled with TRPC3, TRPC6, and TRPC7 subunits, are coupled to Gαq-type G protein-coupled receptors for the major classes of excitatory neurotransmitters. Sustained activation of this TRPC channel-based pathophysiological signaling hub in neurons and glia likely contributes to prodigious excitotoxicity-driven secondary brain injury expansion. This was investigated in mouse models with selectiveTrpc gene knockout (KO). In adult cerebellar brain slices, application of glutamate and the class I metabotropic glutamate rece...
Source: Translational Stroke Research - July 18, 2023 Category: Neurology Source Type: research
Nomogram to Predict Good Neoangiogenesis After Indirect Revascularization Surgery in Patients with Moyamoya Disease: a Case –control Study
AbstractIndirect bypass surgery is an effective treatment for moyamoya disease (MMD), but the success of the surgery depends on the formation of spontaneous collateral vessels, which cannot be accurately predicted before surgery. Developing a prediction nomogram model for neoangiogenesis in patients after indirect revascularization surgery can aid surgeons in identifying suitable candidates for indirect revascularization surgery. This retrospective observational study enrolled patients with MMD who underwent indirect bypass surgery from a multicenter cohort between December 2010 and December 2018. Data including potential ...
Source: Translational Stroke Research - July 15, 2023 Category: Neurology Source Type: research
Risk of New-onset Stroke in Patients with Type 2 Diabetes with Chronic Kidney Disease on Sodium-glucose Co-transporter-2 Inhibitor Users
This study aimed to examine the association between the use of SGLT2 inhibitors and NOS risk in patients with T2D and CKD. We conducted a nationwide retrospective cohort study using data from the Taiwan Health Insurance Review and Assessment Service database for the years 2004 to 2019. The primary outcome was the risk of incident stroke, which was estimated using hazard ratios (HRs) and 95% confidence intervals (CIs). We used multiple Cox regression modeling to analyze the association between SGLT2 inhibitor use and the risk of stroke in patients with T2D and CKD. In a cohort of 113,710 patients with T2D and CKD who were u...
Source: Translational Stroke Research - July 14, 2023 Category: Neurology Source Type: research
Effect of INR on Outcomes of Endovascular Treatment for Acute Vertebrobasilar Artery Occlusion
This study aimed to analyze the effects of international normalized ratio (INR) indicators on outcomes in patients with acute VBAO treated with EVT. Dynamic data on INR in patients with VBAO who received endovascular treatment (EVT) at 65 stroke centers in China were retrospectively enrolled. Outcome measures included the modified Rankin Scale (mRS) score at 90 days and 1 year and symptomatic intracranial hemorrhage (sICH). The associations between elevated INR (INR > 1.1), INR variability (time-weighted variance of INR changes), and various clinical outcomes were analyzed in all patients and subgroups stratifie...
Source: Translational Stroke Research - July 13, 2023 Category: Neurology Source Type: research
The Effect of the ABCB1(MDR-1) C3435T Polymorphism in Turkish Patients with Aspirin Resistance in Acute Ischemic Stroke
This study aimed to investigate the rate of AR, the factors influencing AR in patients with acute ischemic stroke under regular aspirin use, and the relationship between AR and ABCB1 (MDR-1) C3435T (rs1045642) polymorphism. Throughout this multicenter prospective study, 174 patients with acute ischemic stroke who had been prescribed aspirin for at least one month due to the risk of vascular disease, along with 106 healthy volunteers, were included as part of the study group. The results of our study indicate that AR was detected in 21.3% of the patient group. According to the results of an analysis of the polymorphism of t...
Source: Translational Stroke Research - July 11, 2023 Category: Neurology Source Type: research
Central IRF4/5 Signaling Are Critical for Microglial Activation and Impact on Stroke Outcomes
AbstractMicroglia and monocytes play a critical role in immune responses to cerebral ischemia. Previous studies have demonstrated that interferon regulatory factor 4 (IRF4) and IRF5 direct microglial polarization after stroke and impact outcomes. However, IRF4/5 are expressed by both microglia and monocytes, and it is not clear if it is the microglial (central) or monocytic (peripheral) IRF4-IRF5 regulatory axis that functions in stroke. In this work, young (8 –12 weeks) male pep boy (PB), IRF4 or IRF5 flox, and IRF4 or IRF5 conditional knockout (CKO) mice were used to generate 8 types of bone marrow chimeras, to differ...
Source: Translational Stroke Research - July 11, 2023 Category: Neurology Source Type: research
