44 results match your criteria: "EPHE PSL Research University[Affiliation]"

Stroke patients often experience post-stroke emotional impairments, yet the underlying pathophysiology remains unclear. At the brain level, dysregulation of socio-affective skills should be considered through alterations in brain networks instead of isolated regions. Investigating network alterations may be crucial in explaining emotional or cognitive deficits.

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A global effort to benchmark predictive models and reveal mechanistic diversity in long-term stroke outcomes.

bioRxiv

November 2024

Groupe d'Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives-UMR 5293, Centre national de la recherche scientifique (CNRS), CEA, University of Bordeaux, Bordeaux, France.

Stroke remains a leading cause of mortality and long-term disability worldwide, with variable recovery trajectories posing substantial challenges in anticipating post-event care and rehabilitation planning. In response, we established the NeuralCup consortium to address these challenges by benchmarking predictive models of stroke outcome through a collaborative, data-driven approach. This study presents the findings of 15 participating teams worldwide who used a comprehensive dataset including clinical and imaging data, to identify and compare predictors of motor, cognitive, and emotional outcomes one-year post-stroke.

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Article Synopsis
  • The study examines the population structure of Bull Sharks globally, revealing reproductive isolation among different ocean basins and distinct island populations, such as those in Japan and Fiji.
  • Through advanced DNA analysis, researchers found that Bull Sharks use shallow coastal waters for dispersal, while geographical barriers limit gene flow, which impacts their conservation.
  • The findings highlight the vulnerability of local Bull Shark populations to overfishing, particularly among females that return to specific breeding areas, emphasizing the need for targeted management strategies to prevent local declines.
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Studies assessing the association between hunger and psychological states have been conducted in laboratory settings, or limited to persons with eating disorders. In this study, 748 community-dwelling adults (56.4% women, 60.

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Background And Purpose: An early understanding of stroke mechanism may improve treatment and outcome in patients presenting with large vessel occlusion stroke (LVOS) treated with mechanical thrombectomy (MT). We aimed to investigate whether spontaneous external carotid artery (ECA) embolism detection during MT is associated with stroke etiology and clinical outcome.

Methods: We retrospectively reviewed our prospectively maintained institutional database including consecutive patients with anterior circulation LVOS treated with MT between January 2015 and August 2020.

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Objectives: The present study sought to examine mental health problems among nursing home workers in the context of the COVID-19 pandemic, to investigate COVID-19-related fears, and to identify prepandemic factors associated with current mental health issues.

Design: A cross-sectional, online survey was used.

Setting And Participants: All employees among 6 nursing homes in southwestern France (N = 455) were solicited between November, 2020 and June, 2021.

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Microstructural changes after an ischemic stroke (IS) have mainly been described in white matter. Data evaluating microstructural changes in gray matter (GM) remain scarce. The aim of the present study was to evaluate the integrity of GM on longitudinal data using mean diffusivity (MD), and its influence on post-IS cognitive performances.

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High glycemic variability: An underestimated determinant of stroke functional outcome following large vessel occlusion.

Rev Neurol (Paris)

September 2022

Bordeaux University, 33076 Bordeaux, France; Stroke Unit, Bordeaux University Hospital, Hôpital Pellegrin, 33076 Bordeaux, France; UMR 5287 CNRS, Bordeaux University, EPHE PSL Research University, 33076 Bordeaux, France. Electronic address:

Background And Purpose: Early glycemic variability (GV) in diabetic patients is a poor prognosis factor following cardiovascular events. However, its influence on the course of acute ischemic stroke (AIS) with large vessel occlusion remains unclear. We investigated the relationship between high GV during acute stroke and three-month functional outcome among patients treated with combined intravenous thrombolysis and endovascular therapy for large vessel occlusion.

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Normal-appearing white matter (NAWM) is a hub of plasticity, but data relating to its influence on post-ischemic stroke (IS) outcome remain scarce. The aim of this study was to evaluate the relationship between NAWM integrity and cognitive outcome after an IS. A longitudinal study was conducted including supra-tentorial IS patients.

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Influence of prior intravenous thrombolysis on outcome after failed mechanical thrombectomy: ETIS registry analysis.

J Neurointerv Surg

July 2022

Interventional and Diagnostic Neuroradiology, CHU Bordeaux GH Pellegrin, Bordeaux, Aquitaine, France

Background: Despite constant improvements in recent years, sufficient reperfusion after mechanical thrombectomy (MT) is not reached in up to 15% of patients with large vessel occlusion stroke (LVOS). The outcome of patients with unsuccessful reperfusion after MT especially after intravenous thrombolysis (IVT) use is not known. We investigated the influence of initial IVT in this particular group of patients with failed intracranial recanalization.

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Background And Purpose: The influence of chronic treatment by antiplatelet drug (APD) at stroke onset on the outcomes of patients with acute ischemic stroke (AIS) treated with combined intravenous thrombolysis (IVT) and endovascular therapy (EVT) is unclear. We investigated whether prior APD use influences the risk of symptomatic intracranial hemorrhage (sICH) and functional outcome in AIS patients treated with combined reperfusion therapy.

Methods: A single-center retrospective analysis of AIS patients with proximal intracranial occlusion who underwent IVT and EVT between January 2015 and May 2017.

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Objective: The objective of this study was to evaluate the impact of radiological biomarkers suggestive of cerebral small vessel disease (SVD) on the evolution of cognitive performances after an ischemic stroke (IS).

Methods: We studied patients with a supratentorial IS recruited consecutively to a prospective monocentric longitudinal study. A cognitive assessment was performed at baseline, 3 months, and 1 year and was based on a Montreal Cognitive Assessment, an Isaacs set test of verbal fluency (IST), and a Zazzo's cancellation task (ZCT) for the evaluation of attentional functions and processing speed.

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Background: The Covid-19 pandemic and its related public health measures such as mandatory lockdowns have been shown to have an impact on mental health. A key question is the role of pre-existing psychiatric disorders in how such measures are experienced.

Methods: During the first country-wide lockdown imposed in France, a Covid-19 module was added to the French portion of the ongoing World Mental Health International college student survey.

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Lessons on SpA pathogenesis from animal models.

Semin Immunopathol

April 2021

Infection & Inflammation, UMR 1173, Inserm, UVSQ/Université Paris Saclay, 2 ave de la Source de la Bièvre, 78180, Montigny-le-Bretonneux, France.

Understanding the complex mechanisms underlying a disorder such as spondyloarthritis (SpA) may benefit from studying animal models. Several suitable models have been developed, in particular to investigate the role of genetic factors predisposing to SpA, including HLA-B27, ERAP1, and genes related to the interleukin (IL)-23/IL-17 axis. One of the best examples of such research is the HLA-B27 transgenic rat model that fostered the emergence of original theories regarding HLA-B27 pathogenicity, including dysregulation of innate immunity, contribution of the adaptive immune system to chronic inflammation, and influence of the microbiota on disease development.

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Toward a unified analysis of cerebellum maturation and aging across the entire lifespan: A MRI analysis.

Hum Brain Mapp

April 2021

Instituto de Aplicaciones de las Tecnologías de la Información y de las Comunicaciones Avanzadas (ITACA), Universitat Politècnica de València, Valencia, Spain.

Previous literature about the structural characterization of the human cerebellum is related to the context of a specific pathology or focused in a restricted age range. In fact, studies about the cerebellum maturation across the lifespan are scarce and most of them considered the cerebellum as a whole without investigating each lobule. This lack of study can be explained by the lack of both accurate segmentation methods and data availability.

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Cerebral alterations in West African HIV and non-HIV adults aged ≥50: An MRI study.

Int J Infect Dis

February 2021

INSERM, Centre INSERM U1219-Epidémiologie-Biostatistique, University of Bordeaux, F-3300 Bordeaux, France; University of Bordeaux, School of Public Health (ISPED), F-33000 Bordeaux, France; CHU de Bordeaux, Hôpital Saint-André, service de Médecine interne et Maladies Infectieuses, F-33000 Bordeaux, France.

Objectives: To cross-sectionally describe brain alterations in PLHIV aged above 50 years old, receiving antiretroviral treatment (ART) and living in Senegal compared to HIV-negative subjects.

Methods: Twenty PLHIV and 26 HIV-negative subjects with comparable socio-demographic and clinical characteristics underwent an MRI exam (3D-T1 and FLAIR sequences). Global atrophy and White Matter Hyperintensities (WMH) were evaluated.

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Background: Previous research employing global positioning satellite (GPS) data and ecological momentary assessment (EMA) has shown a smaller life-space (distance traveled from home) was associated with poorer community functioning and more severe negative symptoms in people with schizophrenia. Momentary emotional experiences may influence how much time is spent outside of the home. We evaluated the associations between emotional experiences in relation to life-space among people with schizophrenia compared to healthy controls (HCs).

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Objective: We developed a mobile cognitive test of verbal learning and memory, the mobile verbal learning test (mVLT), to allow for brief, repeated and portable delivery of a 12-item list learning test through a smartphone. This study examined the psychometric properties of the mVLT among older persons with and without human immunodeficiency virus (HIV).

Methods: Sixty-eight persons with HIV and 36 HIV-negative individuals (aged 50-74) completed three trials of the mVLT on a smartphone once daily for 14 days.

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Rapidly accumulating data from mobile assessments are facilitating our ability to track patterns of emotions, behaviors, biologic rhythms, and their contextual influences in real time. These approaches have been widely applied to study the core features, traits, changes in states, and the impact of treatments in bipolar disorder (BD). This paper reviews recent evidence on the application of both passive and active mobile technologies to gain insight into the role of the circadian system and patterns of sleep and motor activity in people with BD.

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While necessary from a public health standpoint, Covid-19 confinement strategies are often contrary to evidence-based therapies used to treat mental disorders. University students may be particularly vulnerable to mental health problems, but recent studies have indicated only a negligible impact of confinement strategies. French respondents to a World Mental Health survey of university students completed questions concerning Covid-19 confinement.

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Diagnosis of exon 12-positive polycythemia vera rescued by NGS.

Clin Case Rep

May 2020

Service d'Hématologie Biologique Pôle Biologie CHU de Dijon Dijon France.

A V617F-negative polycythemia associated with low serum epo needs to be tested for an exon 12 mutation. When negative, due to potential serious complications in PV, a next generation sequencing is necessary to rule out false negative results.

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Background and Purpose- The aim of the present study was to evaluate the relationship between normal-appearing white matter (NAWM) integrity and postischemic stroke recovery in 4 main domains including cognition, mood, gait, and dependency. Methods- A prospective study was conducted, including patients diagnosed for an ischemic supratentorial stroke on a 3T brain MRI performed 24 to 72 hours after symptom onset. Clinical assessment 1 year after stroke included a Montreal Cognitive Assessment, an Isaacs set test, a Zazzo cancelation task, a Hospital Anxiety and Depression scale, a 10-meter walking test, and a modified Rankin Scale (mRS).

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While the population growth rate in long-lived species is highly sensitive to adult survival, reproduction can also significantly drive population dynamics. Reproductive parameters can be challenging to estimate as breeders and nonbreeders may vary in resighting probability and reproductive status may be difficult to assess. We extended capture-recapture (CR) models previously fitted for data on other long-lived marine mammals to estimate demographic parameters while accounting for detection heterogeneity between individuals and state uncertainty regarding reproductive status.

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