980 results match your criteria: "Neurocentre[Affiliation]"

Inequalities in access to neuro-oncology supportive care and rehabilitation: A survey of healthcare professionals' perspectives.

Neurooncol Pract

August 2024

Department of Oncology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.

Background: Neuro-oncology patients and caregivers should have equitable access to rehabilitation, supportive-, and palliative care. To investigate existing issues and potential solutions, we surveyed neuro-oncology professionals to explore current barriers and facilitators to screening patients' needs and referral to services.

Methods: Members of the European Association of Neuro-Oncology and the European Organisation for Research and Treatment of Cancer Brain Tumor Group (EORTC-BTG) were invited to complete a 39-item online questionnaire covering the availability of services, screening, and referral practice.

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French consensus procedure for neuropsychological assessment in multiple sclerosis.

Rev Neurol (Paris)

July 2024

Service de neurologie pathologie inflammatoire du système nerveux central, CRC SEP, CHU Pellegrin, CHU de Bordeaux, Bordeaux, France; Inserm U1215, Neurocentre Magendie, université de Bordeaux, Bordeaux, France.

Cognitive impairment is one of the invisible symptoms of Multiple sclerosis (MS), which could be associated with depression, unemployment, reduced social interaction, inability to drive, and compromised quality of life. Moreover, the presence of cognitive impairment can be considered as a long-term prognostic factor and in the follow-up of disability. So, cognitive assessment is a crucial element in clinical follow-up of patients with MS (pwMS).

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Diagnosis and management of children and adult craniopharyngiomas: A French Endocrine Society/French Society for Paediatric Endocrinology & Diabetes Consensus Statement.

Ann Endocrinol (Paris)

July 2024

Department of Endocrinology, CHU Bordeaux, Hôpital Haut Lévêque, Neurocentre Magendie, Physiopathologie de la Plasticité Neuronale, Université de Bordeaux, Pessac, France.

Article Synopsis
  • * The French Endocrine Society and associated organizations created a reference document to address the complexities of managing these tumors, which can recur and lead to serious health issues, including impaired quality of life for patients, especially those with hypothalamic syndrome.
  • * Recent research has identified two tumor types—papillary and adamantinomatous—with different molecular signatures and treatment strategies, prompting ongoing developments in therapeutic options, including new medications for associated symptoms like hyperphagia.
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Acute Clinical Events Identified as Relapses With Stable Magnetic Resonance Imaging in Multiple Sclerosis.

JAMA Neurol

August 2024

Nantes Université, l'Institut national de la santé et de la recherche médicale, CHU de Nantes, Center for Research in Transplantation and Translational Immunology, UMR 1064, CIC l'Institut national de la santé et de la recherche médicale 1413, Service de Neurologie, Nantes, France.

Article Synopsis
  • * Conducted over eight years (2015-2023) using data from a French MS registry, researchers categorized relapses based on MRI results to better understand their impact.
  • * Findings indicate that certain factors, like treatment type and fatigue, increase the likelihood of clinically defined relapses without MRI evidence, suggesting a need for revised monitoring and treatment strategies for MS patients.
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Association of glial fibrillary acid protein, Alzheimer's disease pathology and cognitive decline.

Brain

December 2024

Laboratory of Neuroimaging and Innovative Molecular Tracers (NIMTlab), Geneva University Neurocentre and Faculty of Medicine, University of Geneva, Geneva 1205, Switzerland.

Increasing evidence shows that neuroinflammation is a possible modulator of tau spread effects on cognitive impairment in Alzheimer's disease. In this context, plasma levels of the glial fibrillary acidic protein (GFAP) have been suggested to have a robust association with Alzheimer's disease pathophysiology. This study aims to assess the correlation between plasma GFAP and Alzheimer's disease pathology, and their synergistic effect on cognitive performance and decline.

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Background: While potential risk factors for multiple sclerosis (MS) have been extensively researched, it remains unclear how persons with MS theorize about their MS. Such theories may affect mental health and treatment adherence. Using natural language processing techniques, we investigated large-scale text data about theories that persons with MS have about the causes of their disease.

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Tracking defensive states with prefrontal dynorphin-expressing neurons.

Neuron

June 2024

University Bordeaux, Neurocentre Magendie, U1215, 146 Rue Léo-Saignat, 33077 Bordeaux, France; INSERM, Neurocentre Magendie, U1215, 146 Rue Léo-Saignat, 33077 Bordeaux, France. Electronic address:

The dynamic suppression of threat-related behavior as a function of environmental constraint is critical for survival in mammals, yet the neurobiological underpinnings remain largely unknown. In this issue of Neuron, Wang et al. identified prefrontal dynorphin-expressing neurons as key elements for tracking threat-related behavioral states and regulating fear suppression.

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Objective: The Videos of Physical Exercise and Sedentary Behaviours (VPESB) database is a novel database designed to experimentally investigate neural reactivity to physical exercise. The aim of this database is to provide a variety of dynamic images with a minimum of confounding factors.

Methods: A total of 196 healthy participants were recruited to evaluate 10 clips of sedentary activities and 10 clips of physical exercise.

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Molecular and functional mapping of the neuroendocrine hypothalamus: a new era begins.

J Endocrinol Invest

November 2024

University of Bordeaux, INSERM, Neurocentre Magendie, U1215, 33000, Bordeaux, France.

Background: Recent advances in neuroscience tools for single-cell molecular profiling of brain neurons have revealed an enormous spectrum of neuronal subpopulations within the neuroendocrine hypothalamus, highlighting the remarkable molecular and cellular heterogeneity of this brain area.

Rationale: Neuronal diversity in the hypothalamus reflects the high functional plasticity of this brain area, where multiple neuronal populations flexibly integrate a variety of physiological outputs, including energy balance, stress and fertility, through crosstalk mechanisms with peripheral hormones. Intrinsic functional heterogeneity is also observed within classically 'defined' subpopulations of neuroendocrine neurons, including subtypes with distinct neurochemical signatures, spatial organisation and responsiveness to hormonal cues.

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Single administration of low-dose ketamine has both acute and sustained anti-depressant effects. Sustained effect is associated with restoration of glutamatergic synapses in medial prefrontal cortic (mFPC) neurons. Ketamine induced profound changes in a number of molecular pathways in a mouse model for chronic stress.

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Dynamic Evolution of Infarct Volumes at MRI in Ischemic Stroke Due to Large Vessel Occlusion.

Neurology

June 2024

From the Institut de Bio-imagerie IBIO (F.M., J.D., V.D., T.T.), University Bordeaux; Neuroimagerie Diagnostique et Thérapeutique (D.P., G.M., T.C., V.D., T.T.), CHU de Bordeaux, France; Kansai Electric Power Hospital (H.F.), Osaka, Japan; Inserm CIC-IT U1433 (E.M., B.C.), CHRU Nancy; Institut de Psychiatrie et Neurosciences de Paris (IPNP) (P.S.), INSERM U1266; Département de Neurologie (P.S.), Hopital Fondation Rothschild, Paris; Institut des Maladies Neurodégénératives (V.P.), CNRS, UMR 5293, Bordeaux INP (P.C.), LABRI, CNRS, UMR5800, and Neurocentre Magendie (V.D., T.T.), INSERM U1215, Univ. Bordeaux; Service de Neurologie et Unité de Neuro Vasculaire (B.L.), Hôpital FOCH, Suresnes; Unité Neurovasculaire (J.M.O.), CHU de Toulouse; Unité Neurovasculaire (I.S.), CHU de Bordeaux; CNRS (M.T.D.S.), UMR-5293, Univ. Bordeaux; and Brain Connectivity and Behaviour Laboratory (M.T.D.S.), Paris, France.

Article Synopsis
  • The study investigates how the volume of brain infarcts progresses over time in stroke patients with large vessel occlusion, identifying different rates of growth among patients as slow, intermediate, and fast progressors.
  • Using advanced statistical methods on MRI data from a large cohort of stroke patients, researchers created models to predict clinical outcomes based on infarct growth patterns.
  • The results showed distinct patterns in infarct volume evolution, with specific brain regions affected at different rates, enabling predictions on recovery outcomes three months post-stroke.
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A rising concern in autism spectrum disorder (ASD) is the heightened sensitivity to trauma, the potential consequences of which have been overlooked, particularly upon the severity of the ASD traits. We first demonstrate a reciprocal relationship between ASD and post-traumatic stress disorder (PTSD) and reveal that exposure to a mildly stressful event induces PTSD-like memory in four mouse models of ASD. We also establish an unanticipated consequence of stress, as the formation of PTSD-like memory leads to the aggravation of core autistic traits.

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Background: Injury is a global health concern, and injury-related mortality disproportionately impacts low- and middle-income countries (LMICs). Compelling evidence from observational studies in high-income countries shows that trauma education programs, such as the Rural Trauma Team Development Course (RTTDC), increase clinician knowledge of injury care. There is a dearth of such evidence from controlled clinical trials to demonstrate the effect of the RTTDC on process and patient outcomes in LMICs.

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Augmenting locomotor perception by remapping tactile foot sensation to the back.

J Neuroeng Rehabil

April 2024

Laboratory of Cognitive Neuroscience, Faculty of Life Sciences, Neuro-X Institute, Swiss Federal Institute of Technology (EPFL), Geneva, 1012, Switzerland.

Background: Sensory reafferents are crucial to correct our posture and movements, both reflexively and in a cognitively driven manner. They are also integral to developing and maintaining a sense of agency for our actions. In cases of compromised reafferents, such as for persons with amputated or congenitally missing limbs, or diseases of the peripheral and central nervous systems, augmented sensory feedback therefore has the potential for a strong, neurorehabilitative impact.

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Among the several animal models of α-synucleinopathies, the well-known viral vector-mediated delivery of wild-type or mutated (A53T) α-synuclein requires new tools to increase the lesion in mice and follow up in vivo expression. To this end, we developed a bioluminescent expression reporter of the human A53T-α-synuclein gene using the NanoLuc system into an AAV2/9, embedded or not in a fibroin solution to stabilise its expression in space and time. We first verified the expression of the fused protein in vitro on transfected cells by bioluminescence and Western blotting.

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Article Synopsis
  • The hypothalamus has lots of different neurons that control behavior and metabolism, and these neurons can change over time.
  • Researchers found special 'Ghost' neurons, which don't act like regular ones and were previously unnoticed by other methods.
  • The number of Ghost neurons increases in mice that gain weight from unhealthy diets, but they can change back when the mice lose weight, showing that neurons can adapt based on diet.
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Introduction: Ocrelizumab is an approved intravenously administered anti-CD20 antibody for multiple sclerosis (MS). The safety profile and patient preference for conventional versus shorter ocrelizumab infusions were investigated in the ENSEMBLE PLUS study.

Methods: ENSEMBLE PLUS was a randomized, double-blind substudy to the single-arm ENSEMBLE study (NCT03085810), comparing outcomes in patients with early-stage relapsing-remitting MS receiving ocrelizumab 600 mg over the approved 3.

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Cannabinoids regulate an insula circuit controlling water intake.

Curr Biol

May 2024

INSERM 1215, Neurocentre Magendie, University of Bordeaux, 146 rue Léo Saignat, 33000 Bordeaux, France. Electronic address:

The insular cortex, or insula, is a large brain region involved in the detection of thirst and the regulation of water intake. However, our understanding of the topographical, circuit, and molecular mechanisms for controlling water intake within the insula remains parcellated. We found that type-1 cannabinoid (CB) receptors in the insular cortex cells participate in the regulation of water intake and deconstructed the circuit mechanisms of this control.

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Vulnerability of Thalamic Nuclei at CSF Interface During the Entire Course of Multiple Sclerosis.

Neurol Neuroimmunol Neuroinflamm

May 2024

From the University of Bordeaux (I.K., T.Y., A.R., B.B., V.D., T.T.), INSERM, Neurocentre Magendie, U1215; Neuroimagerie diagnostique et thérapeutique (S.B.), CHU de Bordeaux; University of Bordeaux (R.A.K., B.M., P.C.), CNRS, Bordeaux INP, LABRI, UMR5800, Talence; Univ. Bordeaux (V.P.), CNRS, IMN, UMR 5293; Groupe d'Imagerie Neurofonctionnelle (L.P.), Institut des Maladies Neurodégénératives CNRS UMR 5293, Bordeaux, France; Department of Medical Imaging (M.S.), The University of Arizona, Tucson; Université de Lyon (R.C.), Université Claude Bernard Lyon 1, France; and Instituto de Aplicaciones de las Tecnologías de la Información y de las Comunicaciones Avanzadas (ITACA) (J.V.M.), Universitat Politècnica de València, Spain.

Background And Objectives: Thalamic atrophy can be used as a proxy for neurodegeneration in multiple sclerosis (MS). Some data point toward thalamic nuclei that could be affected more than others. However, the dynamic of their changes during MS evolution and the mechanisms driving their differential alterations are still uncertain.

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Rethinking the role of microglia in obesity.

Neuropharmacology

August 2024

University of Bordeaux, INSERM, Neurocentre Magendie, Bordeaux, France; Institut Universitaire de France (IUF), France. Electronic address:

Microglia are the macrophages of the central nervous system (CNS), implying their role in maintaining brain homeostasis. To achieve this, these cells are sensitive to a plethora of endogenous and exogenous signals, such as neuronal activity, cellular debris, hormones, and pathological patterns, among many others. More recent research suggests that microglia are highly responsive to nutrients and dietary variations.

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Prenatal maternal negative life events associated with child emotional and behavioral problems in the French EDEN cohort.

J Affect Disord

July 2024

Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Social Epidemiology Research Team, F 75012 Paris, France.

Introduction: Prenatal negative life events (NLEs) have been linked to adverse health outcomes in children. However, few studies examine this relationship during late childhood using trajectory analyses. Additionally, the impact of specific NLEs domains on child development remains unclear.

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Sex-based differences in growth-related IGF1 signaling in response to PAPP-A2 deficiency: comparative effects of rhGH, rhIGF1 and rhPAPP-A2 treatments.

Biol Sex Differ

April 2024

Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Avenida Carlos Haya 82, Málaga, 29010, Spain.

Background: Children with pregnancy-associated plasma protein-A2 (PAPP-A2) mutations resulting in low levels of bioactive insulin-like growth factor-1 (IGF1) and progressive postnatal growth retardation have improved growth velocity and height following recombinant human (rh)IGF1 treatment. The present study aimed to evaluate whether Pappa2 deficiency and pharmacological manipulation of GH/IGF1 system are associated with sex-specific differences in growth-related signaling pathways.

Methods: Plasma, hypothalamus, pituitary gland and liver of Pappa2 mice of both sexes, showing reduced skeletal growth, and liver of these mice treated with rhGH, rhIGF1 and rhPAPP-A2 from postnatal day (PND) 5 to PND35 were analyzed.

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There is growing evidence that imbalance immune activity plays a role in the development of neurodevelopmental and psychiatric disorders in children. Mood dysregulation (MD) is a debilitating transnosographic syndrome whose underlying pathophysiological mechanisms could be revealed by studying its biomarkers using the Research Domain Criteria (RDoC) model. Our aim was to study the association between the network of cord serum cytokines, and mood dysregulation trajectories in offsprings between 3 and 8 years of age.

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The development of 2D or 3D bioactive platforms for rapidly isolating pure populations of cells from adult stem cells holds promise for advancing the understanding of cellular mechanisms, drug testing, and tissue engineering. Over the years, methods have emerged to synthesize bioactive micro- and nanostructured 2D materials capable of directing stem cell fate. We introduce a novel method for randomly micro- or nanopatterning any protein/peptide onto both 2D and 3D scaffolds via spray technology.

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Background: Cerebrospinal fluid (CSF) and spinal MRIs are often obtained in children with the radiologically isolated syndrome (RIS) for diagnosis and prognosis. Factors affecting the frequency and timing of these tests are unknown.

Objective: To determine whether age or sex were associated with (1) having CSF or spinal MRI obtained or (2) the timing of these tests.

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