776 results match your criteria: "centre de recherche en neurosciences de Lyon[Affiliation]"

Use of 1,3-Beta-D-Glucan concentration in peritoneal fluid for the diagnosis of intra-abdominal Candidiasis in Critically-ill patients.

Med Mycol

March 2023

Services d'Anesthésie-réanimation médecine intensive, Hôpital Lyon Sud, Hospices Civils de Lyon, Lyon, France.

Intra-Abdominal Candidiasis (IAC) is frequent and associated with high mortality in intensive care unit (ICU) patients. Antifungal treatments may be overused due to a lack of diagnostic tools to rule out IAC. Serum 1,3-Beta-D-Glucan (BDG) concentrations are used to diagnose Candida infections, its concentration in peritoneal fluid (PF) may help to confirm or invalidate the diagnosis of IAC.

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Basic auditory processing and its relationship with symptoms in patients with schizophrenia: A systematic review.

Psychiatry Res

May 2023

Université Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, PSYR2, Bron F-69500, France; Centre Hospitalier Le Vinatier, 95 Boulevard Pinel, Bron F-69500, France.

Processing of basic auditory features, one of the earliest stages of auditory perception, has been the focus of considerable investigations in schizophrenia. Although numerous studies have shown abnormalities in pitch perception in schizophrenia, other basic auditory features such as intensity, duration, and sound localization have been less explored. Additionally, the relationship between basic auditory features and symptom severity shows inconsistent results, preventing concrete conclusions.

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Caffeine is the most consumed psychoactive substance worldwide. Previous studies suggested higher caffeine consumption in subjects with schizophrenia spectrum disorders (SSD) as well as associations with symptoms, medication and medication side-effects. In a large and well-characterized sample of SSD subjects we explored the association between caffeine consumption and clinical (psychosis related, severity, general health) as well as pharmacological (antipsychotic treatment, sedation potential) variables.

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Family planning considerations in people with multiple sclerosis.

Lancet Neurol

April 2023

Department of Neurology, Katholisches Klinikum, Ruhr University Bochum, Bochum, Germany. Electronic address:

Multiple sclerosis is often diagnosed in patients who are planning on having children. Although multiple sclerosis does not negatively influence most pregnancy outcomes, less is known regarding the effects of fetal exposure to novel disease-modifying therapies (DMTs). The withdrawal of some DMTs during pregnancy can modify the natural history of multiple sclerosis, resulting in a substantial risk of pregnancy-related relapse and disability.

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A meta-analysis of the associations between insufficient sleep duration and antibody response to vaccination.

Curr Biol

March 2023

The Section of Adult and Pediatric Endocrinology, Diabetes and Metabolism, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA.

Vaccination is a major strategy to control a viral pandemic. Simple behavioral interventions that might boost vaccine responses have yet to be identified. We conducted meta-analyses to summarize the evidence linking the amount of sleep obtained in the days surrounding vaccination to antibody response in healthy adults.

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Characterizing ontogenetic changes across the lifespan is a crucial tool in understanding neurocognitive functions. While age-related changes in learning and memory functions have been extensively characterized in the past decades, the lifespan trajectory of memory consolidation, a critical function that supports the stabilization and long-term retention of memories, is still poorly understood. Here we focus on this fundamental cognitive function and probe the consolidation of procedural memories that underlie cognitive, motor, and social skills and automatic behaviors.

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Article Synopsis
  • The study investigates how rats of different ages (infants, juveniles, adults) respond to odors by measuring their sniffing behavior and respiratory rates.
  • It finds that adults have a higher peak sniffing rate than younger rats, and younger rats show a faster decline in their sniffing response when exposed to the same odor repeatedly.
  • Additionally, when the odor is associated with a foot-shock, adults and infants maintain a heightened respiratory rate, while juveniles do not, indicating variations in olfactory processing and learning across developmental stages.
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Immune Profiling Reveals the T-Cell Effect of Ocrelizumab in Early Relapsing-Remitting Multiple Sclerosis.

Neurol Neuroimmunol Neuroinflamm

May 2023

From the CHU Nantes (A.G., E.D., S.S., J.M., A.N., S.W., P.-A.G., L.B., D.L.), Nantes Université, INSERM UMR1064, Center for Research in Transplantation and Translational Immunology (CR2TI); CRCSEP (C.L.-F.), CHU de Nice Pasteur 2, Université Nice Côte d'Azur UR2CA URRIS; Service de Neurologie (E.T.), CHU de Nîmes, Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM; Service de Neurologie et Centre d'Investigation Clinique (J.D.S.), CHU de Strasbourg; Service de Neurologie (E.L.P.), CHU Pontchaillou, Rennes; Université de Lyon (S.V.), Université Claude Bernard Lyon 1; Service de Neurologie (S.V.), sclérose en plaques, pathologies de la Myéline et Neuro-inflammation, Hôpital Neurologique Pierre Wertheimer, Hospices Civils de Lyon, Bron; Observatoire Français de la Sclérose en Plaques (S.V.), Centre de Recherche en Neurosciences de Lyon; EUGENE DEVIC EDMUS Foundation Against Multiple sclerosis (S.V.), state-approved Foundation, Bron; Service de Neurologie (A.M.), CHU Bretonneau, Tours; Service de Neurologie (E.B.), CHU de Besançon; Service de Neurologie (O.C.), CHU de Grenoble; Service de Neurologie (P.L.), CHU de Montpellier, Montpellier; Service de Neurologie (A.R.), CHU de Bordeaux; Université de Bordeaux (A.R.), INSERM, Neurocentre Magendie; F. Hoffmann-La Roche Ltd (C.R., F.B., R.B.) CIC INSERM 1413 (F.L.F., S.W., D.L.), Nantes; CHU Nantes (S.W., D.L.), Nantes Université, Service de Neurologie; and CHU Nantes (P.-A.G.), Nantes Université, Clinique des données, France.

Background And Objectives: Ocrelizumab (OCR), a humanized anti-CD20 monoclonal antibody, is highly efficient in patients with relapsing-remitting multiple sclerosis (RR-MS). We assessed early cellular immune profiles and their association with disease activity at treatment start and under therapy, which may provide new clues on the mechanisms of action of OCR and on the disease pathophysiology.

Methods: A first group of 42 patients with an early RR-MS, never exposed to disease-modifying therapy, was included in 11 centers participating to an ancillary study of the ENSEMBLE trial (NCT03085810) to evaluate the effectiveness and safety of OCR.

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Aims: To investigate associations between outdoor and screen time and changes in sleep patterns in children from two nationwide birth-cohorts in the SAPRIS project.

Methods: During the first French COVID-19 pandemic lockdown, volunteer parents of children enrolled in the ELFE and EPIPAGE2 birth-cohorts completed online questions about their child's outdoor time, screen time, and changes in sleep duration and quality compared with the pre-lockdown situation. In 5700 children (aged 8-9 years, 52% boys) with available data, we assessed associations between outdoor time, screen time, and sleep changes using multinomial logistic regression models adjusted for confounders.

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In the human genome, about 750 genes contain one intron excised by the minor spliceosome. This spliceosome comprises its own set of snRNAs, among which U4atac. Its noncoding gene, , has been found mutated in Taybi-Linder (TALS/microcephalic osteodysplastic primordial dwarfism type 1), Roifman (RFMN), and Lowry-Wood (LWS) syndromes.

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Congenital amusia is a neurodevelopmental disorder characterized by difficulties in the perception and production of music, including the perception of consonance and dissonance, or the judgment of certain combinations of pitches as more pleasant than others. Two perceptual cues for dissonance are inharmonicity (the lack of a common fundamental frequency between components) and beating (amplitude fluctuations produced by close, interacting frequency components). Amusic individuals have previously been reported to be insensitive to inharmonicity, but to exhibit normal sensitivity to beats.

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Memory consolidation processes have traditionally been investigated from the perspective of hours or days. However, recent developments in memory research have shown that memory consolidation processes could occur even within seconds, possibly because of the neural replay of just practiced memory traces during short breaks. Here, we investigate this rapid form of consolidation during statistical learning.

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Deinstitutionalisation, community-based care and coercion: Did France learn from international experiences?

Encephale

June 2023

Pôle universitaire de Psychiatrie, CHU de Saint-Étienne, Saint-Étienne, France; Equipe PsyR2-Centre de Recherche en Neurosciences de Lyon (CRNL), Inserm U1028 - CNRS UMR 5292, Université Jean Monnet St-Etienne- University Lyon 1, Lyon, France.

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A new tool for the assessment of speech understanding and spatial hearing difficulties in children: the Kid-SSQ questionnaire.

Eur Arch Otorhinolaryngol

August 2023

Université Claude Bernard Lyon 1, CNRS, INSERM, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, IMPACT (Integrative Multisensory Perception Action and Cognition Team, Bron, France.

Purpose: To develop and validate a new questionnaire, the Kid-SSQ, for the rapid screening of hearing abilities in children with hearing impairment, aged 7-17 years.

Methods: The questionnaire was constructed from two existing, validated versions of the 'Speech, Spatial and Qualities of Hearing' - (SSQ) questionnaire (pediatric form and adult short-form). The 12 selected items included auditory aspects from three subscales: speech perception, spatial hearing, and qualities of hearing.

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Purpose: Cognitive rehabilitation research has progressed slowly, in part due to incomplete reporting of intervention content and delivery and the difficulties this produces for discerning program effectiveness. This knowledge gap can be reduced by providing detailed intervention descriptions. We document the content/ingredients and therapeutic targets of a cognitive rehabilitation program for adults with mild-to-moderate cognitive impairment.

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Article Synopsis
  • The study investigates the genetic factors in infants with isolated sagittal and metopic craniosynostosis, finding that nearly 13% carry gene variants linked to the condition.
  • A total of 101 infants were examined, revealing variants in several genes including SMAD6, FGFR2, and others, with SMAD6 variants particularly associated with language delays in neurodevelopmental testing.
  • The findings underscore the importance of molecular analysis for understanding the genetic underpinnings of isolated craniosynostosis and highlight the need to consider incomplete penetrance in gene interpretation.
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Neuronal sensitivity to light stimulation can be a significant confounding factor for assays that use light to study neuronal processes, such as optogenetics and fluorescent imaging. While continuous one-photon (1P) blue light stimulation has been shown to be responsible for a decrease in firing activity in several neuronal subtypes, discontinuous 1P blue light stimulation commonly used in optogenetic experiments is supposed to have a negligible action. In the present report, we tested experimentally this theoretical prediction by assessing the effects produced by the most commonly used patterns of discontinuous 1P light stimulation on several electrophysiological parameters in brain slices.

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Our ability to understand how to interact with familiar objects is supported by conceptual tool knowledge. Conceptual tool knowledge includes action tool and semantic tool knowledge which are supported by the ventro-dorsal and the ventral pathways, respectively. This apparent functional segregation has been recently called into question.

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Article Synopsis
  • MOG antibodies are linked to specific types of CNS demyelinating syndromes that differ from multiple sclerosis and aquaporin-4-seropositive neuromyelitis optica spectrum disorder.* -
  • A proposed set of diagnostic criteria for MOG antibody-associated disease (MOGAD) emphasizes that the presence of MOG-IgG is crucial and typically associates with conditions like acute disseminated encephalomyelitis, optic neuritis, or transverse myelitis.* -
  • Validating these criteria could enhance the diagnosis of MOGAD, which is important for understanding long-term clinical outcomes and for refining clinical trial criteria, though not all multiple sclerosis patients need to be tested for MOG-IgG.*
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Are TPJs conflict detectors or solvers?: Comment on "Left and right temporal-parietal junctions (TPJs) as "match/mismatch" hedonic machines: A unifying account of TPJ function" by Doricchi et al.

Phys Life Rev

March 2023

Centre de Recherche en Neurosciences de Lyon (CRNL), Trajectoires Team (Inserm UMR_S 1028-CNRS-UMR 5292-Université de Lyon), Bron, France; Mouvement et Handicap and Neuro-Immersion, Hospices Civils de Lyon et Centre de Recherche en Neurosciences de Lyon, Hôpital Henry Gabrielle, St Genis Laval, France. Electronic address:

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Introduction: Lockdown over the Covid-19 pandemic might have had a major impact on people's mental health. The present longitudinal study was aimed to explore the impact of the two first lockdowns on anxious and depressive symptoms of older subjects suffering from psychiatric disorders and to highlight their strategies to cope with the stress induced by these lockdowns.

Methods: Twenty-one outpatients from psychogeriatric units benefited from a follow-up visit phone.

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