Diabetic Stroke Promotes a Sexually Dimorphic Expansion of T Cells

AbstractWe recently reported that diabetes negates the cerebrovascular protection typically seen in adult female rats resulting in cognitive impairment, which is worsened by increased parenchymal bleeding and edema after ischemic stroke. Although women experience more severe diabetes and suffer from a higher rate of diabetic complications, including stroke and cognitive impairment, underlying mechanisms contributing to sex differences are limited. Emerging evidence suggests interleukin (IL)-17 contributes to cerebrovascular pathologies: (1) high salt diet-mediated expansion of IL-17-producing T cells (Th17) in the gut microbiome promotes cerebrovascular dysfunction and cognitive impairment in male mice, (2) increased IL-17-producing γδTCR cells exacerbates stroke injury in male mice, and (3) IL-17 promotes rupture of cerebral aneurysms in female mice. Based on these premises, we investigated the potential involvement of IL-17-producing inflammatory cells in cerebrovascular dysfunction and post-stroke vascular injury in diabet es by measuring intestinal, circulating, or cerebral T cell profiles as well as in plasma IL-17 in both sexes. Cell suspensions prepared from naive or stroked (3 days after stroke) diabetic and control rats were analyzed by flow cytometry, and IL-17 levels were measured in plasma using ELISA. Diabe tes deferentially promoted the expansion of cerebral Th17 cells in females. In response to stroke, diabetes had a sexually dimorphic effect o...
Source: NeuroMolecular Medicine - Category: Neurology Source Type: research

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ConclusionsStroke or stroke-like syndrome of infectious origin can be observed in an important proportion of case presenting with sensory-motor deficit of unknown origin; their accurate diagnosis has a considerable impact in terms of treatment choices and outcome.
Source: Infection - Category: Infectious Diseases Source Type: research
ConclusionIn ENSURE-AF, thromboembolic events were rare and absolute bleeding event rates were higher with concomitant APT. These findings may be relevant for AF-patients considered for dual therapy; even for a short treatment duration of 1  month.
Source: Clinical Research in Cardiology - Category: Cardiology Source Type: research
RARITAN, NJ, March 28, 2020 – The Janssen Pharmaceutical Companies of Johnson &Johnson today announced the VOYAGER PAD study met its primary efficacy and principal safety endpoints, demonstrating the XARELTO® (rivaroxaban) vascular dose (2.5 mg twice daily) plus aspirin (100 mg once daily) was superior to aspirin alone in reducing the risk of major adverse limb and cardiovascular (CV) events by 15 percent in patients with symptomatic peripheral artery disease (PAD) after lower-extremity revascularization, with similar rates of TIMI[1] major bleeding. VOYAGER PAD is the only study to show a significant benefit...
Source: Johnson and Johnson - Category: Pharmaceuticals Tags: Innovation Source Type: news
This study included 1962 patients who underwent transesophageal echocardiographic examination (TEE) prior to cardioversion or ablation in the years 2014-2018 in three cardiac centers. RESULTS: More than a quarter of AF patients had decreased eGFR (
Source: Cardiology Journal - Category: Cardiology Authors: Tags: Cardiol J Source Type: research
Publication date: Available online 19 February 2020Source: Canadian Journal of CardiologyAuthor(s): Hsin-Fu Lee, Yi-Hsin Chan, Pei-Ru Li, Jia-Rou Liu, Tze-Fan Chao, Lung-Sheng Wu, Shang-Hung Chang, Yung-Hsin Yeh, Chi-Tai Kuo, Lai-Chu See, Gregory Y.H. LipAbstractBackgroundEvidences of clinical outcomes for oral anticoagulants and antiplatelet treatment (APT) in atrial fibrillation (AF) patients with critical limb ischemia (CLI) are very limited.MethodsIn this nationwide retrospective cohort study collected from Taiwan National Health Insurance Research Database, 1,223 AF patients with CLI taking DOACs, warfarin, or APT wer...
Source: Canadian Journal of Cardiology - Category: Cardiology Source Type: research
Authors: Parker WAE, Storey RF Abstract Aspirin and P2Y12 inhibitors remain commonly prescribed antiplatelet drugs in the treatment of atherothrombotic conditions. Despite established benefits of dual antiplatelet therapy (DAPT) in the setting of acute coronary syndromes, there remains residual ischemic risk in this group and the problem of bleeding complications is an ongoing issue. DAPT with aspirin and ticagrelor has now been studied in other patient groups such as those with concurrent diabetes and stable coronary artery disease, and those undergoing elective percutaneous coronary intervention (PCI). Recent tri...
Source: Platelets - Category: Hematology Tags: Platelets Source Type: research
ConclusionAmong patients with AF, OSA is an independent risk factor for MACNE and, more specifically, stroke/SE.Graphical Abstract
Source: American Heart Journal - Category: Cardiology Source Type: research
ConclusionAspirin reduced the risks of MACCE and cancer without increasing the bleeding risk in elderly Koreans with hypertension, T2DM, or dyslipidemia. Moreover, the benefits of the long-term use of aspirin in reducing the risks of MACCE were demonstrated. However, the decision of using aspirin for primary prevention must be carefully made on an individual basis, while estimating the benefit –risk balance of aspirin.
Source: Drugs and Aging - Category: Geriatrics Source Type: research
This study is also a reminder that the health impact of a particular intervention (such as diet) may not be easy to predict or explain. In most cases, the risk of stroke and heart disease tend to rise or fall together, but that wasn’t the case in this research. Beware the study’s limitations This study linking a vegetarian diet with a higher risk of hemorrhagic stroke has a number of important limitations that should temper the concerns of vegetarians. The study was observational. That means it simply observed what happened among different people who followed different diets over time, without being able to ac...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Healthy Eating Heart Health Hypertension and Stroke Source Type: blogs
In this study, researchers studied 438,952 participants in the UK Biobank, who had a total of 24,980 major coronary events - defined as the first occurrence of non-fatal heart attack, ischaemic stroke, or death due to coronary heart disease. They used an approach called Mendelian randomisation, which uses naturally occurring genetic differences to randomly divide the participants into groups, mimicking the effects of running a clinical trial. People with genes associated with lower blood pressure, lower LDL cholesterol, and a combination of both were put into different groups, and compared against those without thes...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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