Sex differences in T cell immune responses, gut permeability and outcome after ischemic stroke in aged mice

This study examined sex differences in central and peripheral T cell immune responses, systemic effects on gut permeability and microbiota diversity and behavioral outcomes after stroke in aged mice. We hypothesized that there are sex differences in the immune response to stroke in aged animals.MethodsC57BL/6N mice (20-22 months) were subjected to 60 min middle cerebral artery occlusion, or sham surgery. T cells were quantified in brain and blood at 3, 7 and 15 days (d) post-stroke by flow cytometry. Peripheral effects on gut permeability and microbiota diversity, as well as neurological function were assessed up to 14d, and at 21d (cognitive function) post-stroke. Brain glial fibrillary acidic protein (GFAP) expression was evaluated at 42d post-stroke.Results and DiscussionMortality (50% vs 14%, p
Source: Brain, Behavior, and Immunity - Category: Neurology Source Type: research

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In conclusion, available evidence from aggregate data supported a modest advantage of ticagrelor-involving regimens for the primary stroke prevention in CAD compared with other antiplatelet regimens after the trade-off between reducing IS and inducing ICH, where more benefits might be expected from long-term and low-dose use of tica grelor among patients with chronic coronary syndrome. Further collaborative meta-analysis of individual participant data from well-designed and statistically-powered trials would be needed to generate high quality evidence on this issue.
Source: Journal of Thrombosis and Thrombolysis - Category: Hematology Source Type: research
ConclusionClopidogrel monotherapy was neither inferior nor superior to aspirin monotherapy for the secondary prevention of recurrent cerebrovascular attack following previous ischemic stroke in patients with T2DM. Hence, clopidogrel or aspirin monotherapy is equally safe and effective in these patients with T2DM.
Source: Diabetes Therapy - Category: Endocrinology Source Type: research
Intracerebral hemorrhage (ICH) occurs in about 10%-20% of all stroke patients, and the overall incidence is approximately 25 of 100 000 per year1 and is expected to increase, given the increasing age of the population globally. Compared with ischemic stroke, ICH is correlated with a worse outcome, a mortality rate of around 40% and a dearth of effective treatments.1,2 It has been proven that serum lipid plays a vital role in the progression of cardiovascular disease and ischemic stroke.3 Nevertheless, the relationship between serum lipid concentrations and ICH remains unclear.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
There is a lack of information on the natural history of asymptomatic carotid artery stenosis (AsymCS) associated with cardiovascular diseases that require surgery. The aim of this study was to investigate risk factors for postoperative ipsilateral ischemic stroke and all-cause mortality after cardiovascular surgery in patients with AsymCS.
Source: Journal of the Neurological Sciences - Category: Neurology Authors: Source Type: research
AbstractIntroductionHematoma expansion (HE) after intracerebral hemorrhage (ICH) is associated with short-term mortality, but its impact on long-term prognosis is still unclear. The aim of this study was to evaluate the impact of HE on long-term survival and functional status after spontaneous ICH.MethodsConsecutive patients admitted with spontaneous ICH were prospectively enrolled and followed up for a minimum of 2  years. We compared short-term (
Source: Neurological Sciences - Category: Neurology Source Type: research
ConclusionLower LMR was independently related to higher risk of HT in patients with AIS. Admission LMR may be used as one of the predictors for HT. Further prospective multicenter studies are needed to validate our findings.
Source: Neurological Sciences - Category: Neurology Source Type: research
Discussion: This project represents a major step in developing a rehabilitation strategy with potential to have impact on the treatment of stroke patients with poor motor recovery in developing countries worldwide. The study preliminarily evaluates a straightforward, non-invasive, inexpensive intervention. If feasibility and preliminary efficacy are demonstrated, further investigations of the proposed intervention (underlying mechanisms/ effects in larger numbers of patients) should be performed.Trial Registration: NCT02658578.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Intracerebral hemorrhage (ICH) is a severe cerebrovascular disease with a high incidence, mortality and disability rate. Danhong injection (DHI) is beneficial for ischemic stroke, but is prohibited for ICH due to risk of bleeding. The present study aims to explore the potential therapeutic time window and molecular mechanism of DHI in a collagenase-induced ICH model in aged rats. DHI administration after ICH could significantly improve body weight and neurological deficits, and reduce the hematoma volume and brain water content when compared to the vehicle control. Furthermore, the protective effect of DHI administration o...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
French Guiana has the highest incidence of ischemic and hemorrhagic stroke of all French territories. However, there is no further information on the epidemiology and management of stroke in French Guiana. Our...
Source: BMC Neurology - Category: Neurology Authors: Tags: Research article Source Type: research
ConclusionsThis retrospective study suggests that SHPD may play a protective role in HT appearance and evolution, which requires verification by a randomized clinical trial.
Source: Neurological Sciences - Category: Neurology Source Type: research
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