4,460 results match your criteria: "Centre National de la Recherche Scientifique - CNRS[Affiliation]"

Human cognition supports complex behaviour across a range of situations, and traits (e.g. personality) influence how we react in these different contexts.

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Children with neurodevelopmental disorders, such as developmental coordination disorder (DCD), exhibit gross to fine sensorimotor impairments, reduced physical activity and interactions with the environment and people. This disorder co-exists with cognitive deficits, executive dysfunctions and learning impairments. Previously, we demonstrated in rats that limited amounts and atypical patterns of movements and somatosensory feedback during early movement restriction manifested in adulthood as degraded postural and locomotor abilities, and musculoskeletal histopathology, including muscle atrophy, hyperexcitability within sensorimotor circuitry and maladaptive cortical plasticity, leading to functional disorganization of the primary somatosensory and motor cortices in the absence of cortical histopathology.

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Primary Vulvar and Vaginal Adenocarcinomas of Intestinal Type Are Closer To Colorectal Adenocarcinomas Than To Carcinomas of Müllerian Origin.

Mod Pathol

November 2024

Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Service de Pathologie Multi-Site, Pierre Benite, France; Université Claude Bernard Lyon-1, Faculté de Médecine Lyon Sud, Centre pour l'Innovation en Cancérologie de Lyon (CICLY), UR 3738, Lyon, France; Université Claude Bernard Lyon-1, Faculté de Médecine Lyon Est, Lyon, France. Electronic address:

Primary vulvar and vaginal adenocarcinomas of intestinal type (VVAIts) are very rare tumors, displaying morphologic and immunohistochemical overlap with colorectal adenocarcinomas. However, their immunoprofile and genomics are poorly studied, and their origin is still debated. Here, we studied a series of 8 VVAIts (4 vulvar and 4 vaginal) using a large panel of immunohistochemistry and DNA and RNA sequencing with clustering analyses.

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Expert consensus on workflow of PET/CT with long axial field-of-view.

Eur J Nucl Med Mol Imaging

November 2024

Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, P.R. China.

Purpose: Positron emission tomography/computed tomography (PET/CT) imaging has been widely used in clinical practice. Long axial field-of-view (LAFOV) systems have enhanced clinical practice by leveraging their technological advantages and have emerged as the new state-of-the-art PET imaging modalities. A consensus was conducted to explore expert views in this emerging field to comprehensively elucidate the proposed workflow in LAFOV PET/CT examinations and highlight the potential challenges inherent in the workflow.

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Background: Durvalumab, an anti-PD-L1 immune checkpoint inhibitor, after radio-chemotherapy (RCT) has changed the management of locally advanced non-small cell lung cancer (LA NSCLC). A series of retrospective studies have investigated different cut-off of lymphocyte count (LyC) and neutrophil-to-lymphocyte ratio (NLR) to predict survival in LA NSCLC. None of these studies has validated their threshold in an independent group of patients.

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Article Synopsis
  • Early calorie-rich diets disrupt circadian rhythms and negatively affect memory in mice, but time-restricted feeding (TRF) can restore these issues.
  • The study used methods like indirect calorimetry and behavioral tasks to analyze metabolic rhythms, memory, and molecular changes after feeding mice a high fat-high sucrose diet followed by TRF.
  • Results showed that TRF improved metabolism and memory independently of body fat levels, linked to thyroid hormone signaling and gene expression changes in the hippocampus.
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Microwave Kinetic Inductance Detector Made of Molecular Beam Epitaxy (MBE)-Grown MgB2 Film.

Nanomaterials (Basel)

October 2024

Institute of Superconductivity, Department of Physics, Bar-Ilan University, Ramat-Gan 5290002, Israel.

We present a MgB-based Microwave Kinetic Inductance Detector (MKID) featuring a quality factor Q ~ 10 and noise equivalent power NEP ~ 10 W/Hz at 2 K. In comparison to YBCO-based MKIDs, the MgB detector shows greater sensitivity to both temperature and magnetic field, a result of its two-gap nature and relatively low critical Hc2 field. Our data indicate that MgB is more advantageous for MKID applications at temperatures lower than 3 K.

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Epigenetic control of T-DNA during transgenesis and pathogenesis.

Plant Physiol

December 2024

Université Paris-Saclay, Commissariat à l'Energie Atomique (CEA), Centre National de la Recherche Scientifique (CNRS), Institute for Integrative Biology of the Cell (I2BC), 91190 Gif-sur-Yvette, France.

Mobile elements known as T-DNAs are transferred from pathogenic Agrobacterium to plants and reprogram the host cell to form hairy roots or tumors. Disarmed nononcogenic T-DNAs are extensively used to deliver transgenes in plant genetic engineering. Such T-DNAs were the first known targets of RNA silencing mechanisms, which detect foreign RNA in plant cells and produce small RNAs that induce transcript degradation.

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DTI Analysis of the Peritumoral Zone of Diffuse Low-grade Gliomas in Progressing Patients.

World Neurosurg

November 2024

Université de Lorraine, Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Automatique de Nancy (CRAN), Nancy, France; Université de Lorraine, CHRU-Nancy, Service de Neurochirurgie, Nancy, France.

Article Synopsis
  • DLGGs are rare brain tumors that can progress even after treatment, complicating effective planning for surgery and other therapies due to their infiltration into white matter tracts.
  • The study involved five patients and analyzed DTI signals alongside traditional imaging methods to identify changes associated with tumor progression over a year.
  • Results indicated that prior to visible changes on standard imaging, abnormal DTI signals in the tumor's periphery could indicate early tumor infiltration, suggesting a potential tool for predicting tumor behavior and adjusting treatment plans.
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Evidence for convergence of distributed cortical processing in band-like functional zones in human entorhinal cortex.

Curr Biol

December 2024

Department of Psychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany; Kavli Institute for Systems Neuroscience, the Egil and Pauline Braathen and Fred Kavli Centre for Cortical Microcircuits, Jebsen Centre for Alzheimer's Disease, NTNU Norwegian University of Science and Technology, 7034 Trondheim, Norway.

The wide array of cognitive functions associated with the hippocampus is supported through interactions with the cerebral cortex. However, most of the direct cortical input to the hippocampus originates in the entorhinal cortex, forming the hippocampal-entorhinal system. In humans, the role of the entorhinal cortex in mediating hippocampal-cortical interactions remains unknown.

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A mathematical model to simulate the dynamics of photosynthetic light reactions under harmonically oscillating light.

Plant Physiol Biochem

December 2024

Department of Biophysics, Faculty of Science, Palacký University, Šlechtitelů 241/27, 77900, Olomouc, Czech Republic. Electronic address:

Alternating electric current and alternating electromagnetic fields revolutionized physics and engineering and led to many technologies that shape modern life. Despite these undisputable achievements that have been reached using stimulation by harmonic oscillations over centuries, applications in biology remain rare. Photosynthesis research is uniquely suited to unleash this potential because light can be modulated as a harmonic function, here sinus.

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Rhizospheric miRNAs affect the plant microbiota.

ISME Commun

January 2024

Écosystèmes, Biodiversité, Évolution (ECOBIO), Unité mixte de recherche (UMR) 6553, Centre national de la recherche scientifique (CNRS) - Université de Rennes, Campus Beaulieu, 263 Avenue du Général Leclerc, Rennes, 35042, France.

Small ribonucleic acids (RNAs) have been shown to play important roles in cross-kingdom communication, notably in plant-pathogen relationships. Plant micro RNAs (miRNAs)-one class of small RNAs-were even shown to regulate gene expression in the gut microbiota. Plant miRNAs could also affect the rhizosphere microbiota.

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Mechanism of Solid-State H Photochemically Induced Dynamic Nuclear Polarization in a Synthetic Donor-Chromophore-Acceptor at 0.3 T.

J Phys Chem Lett

November 2024

Institut des Sciences et Ingenierie Chimiques, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.

H photochemically induced dynamic nuclear polarization (photo-CIDNP) has recently emerged as a tool to enhance bulk H nuclear magnetic resonance (NMR) signals in solids at magnetic fields ranging from 0.3 to 21.1 T, using synthetic donor-chromophore-acceptor (D-C-A) molecules as optically active polarizing agents (PAs).

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The tethered counterion-directed catalysis (TCDC) strategy enables the Au(I)-catalyzed highly enantioselective synthesis of bicyclic furan derivatives via a reaction sequence combining the cycloisomerization of 2-alkynyl enones and the addition of nucleophiles. A large range of oxygenated nucleophiles, such as water, alcohols, carboxylic acids, and peroxides, have successfully been used as nucleophiles, delivering the chiral furane derivatives in high enantioselectivities (mostly above 90% enantiomeric excess). The CPAphosAuCl complexes were used with catalytic loadings as low as 0.

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PD-L1 blockade immunotherapy rewires cancer-induced emergency myelopoiesis.

Front Immunol

October 2024

Laboratory of Immune Regulation and Tolerance, Division of Basic Sciences, Medical School, University of Crete, Heraklion, Greece.

Introduction: Immune checkpoint blockade (ICB) immunotherapy has revolutionized cancer treatment, demonstrating exceptional clinical responses in a wide range of cancers. Despite the success, a significant proportion of patients still fail to respond, highlighting the existence of unappreciated mechanisms of immunotherapy resistance. Delineating such mechanisms is paramount to minimize immunotherapy failures and optimize the clinical benefit.

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Deep learning disconnectomes to accelerate and improve long-term predictions for post-stroke symptoms.

Brain Commun

September 2024

Groupe d'Imagerie Neurofonctionnelle, Institut des Maladies Neurodégénératives 5293, Centre National de la Recherche Scientifique (CNRS), University of Bordeaux, 33076 Bordeaux, France.

Article Synopsis
  • This study evaluates how effective deep-learning models, specifically a 3D U-Net network, are at quickly generating disconnectomes to predict neuropsychological outcomes in stroke patients one year post-stroke.
  • The model was trained on 1333 synthetic lesions and then applied to 1333 actual stroke lesions, leading to the creation of deep-disconnectomes much faster than existing methods—approximately 720 times quicker.
  • The findings show that these deep-disconnectomes have an impressive predictive accuracy of 85.2% for neuropsychological scores, marking a significant improvement over traditional disconnectome approaches and potentially enhancing stroke survivors' prognostic assessments.
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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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Thought-Controlled Computer Applications: A Brain-Computer Interface System for Severe Disability Support.

Sensors (Basel)

October 2024

Équipes de Traitement de l'Information et Systèmes, UMR 8051, CY Cergy Paris Université, École Nationale Supérieure de l'Electronique et de ses Applications (ENSEA), Centre National de la Recherche Scientifique (CNRS), 95000 Cergy, France.

This study introduces an integrated computational environment that leverages Brain-Computer Interface (BCI) technology to enhance information access for individuals with severe disabilities. Traditional assistive technologies often rely on physical interactions, which can be challenging for this demographic. Our innovation focuses on creating new assistive technologies that use novel Human-Computer interfaces to provide a more intuitive and accessible experience.

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Background/objectives: The "One Health" approach underscores the connection between human, animal, and environmental health, promoting solutions to global challenges like climate change and biodiversity loss. The Planetary Health Diet (PHD) promotes a plant-based diet with organically grown plants to reduce the environmental impact of meat production and decrease the risk of non-communicable diseases (NCDs). The BIOQUALIM project will evaluate the PHD's effectiveness in preventing NCDs like periodontal diseases and cancers through four inter-related studies.

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Currently, routine diagnostics for spinocerebellar ataxia (SCA) look for polyQ repeat expansions and conventional variations affecting the proteins encoded by known SCA genes. However, ~40% of the patients still remain without a genetic diagnosis after routine tests. Increasing evidence suggests that variations in the enhancer regions of genes involved in neurodegenerative disorders can also cause disease.

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Decarboxylative Xanthylation under Photocatalytic Conditions.

Org Lett

November 2024

Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), École Nationale Supérieure de Chimie de Montpellier (ENSCM), 34000 Montpellier, France.

Xanthates are widely used in organic synthesis for the construction of various molecules and have numerous applications as bioactive compounds. Here, we present their preparation via a straightforward photocatalytic decarboxylative xanthylation process involving readily available oxime esters and xanthate dimers. This approach provides access to a wide variety of xanthate compounds in moderate to good yields, including xanthates derived from relevant pharmaceutical and bioactive molecules.

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Neurodevelopmental Disorder Caused by Deletion of , a lncRNA Gene.

N Engl J Med

October 2024

From the Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge (V.S.G., M.C.O., J.K.G., K.V.G., E.E., B.W., F.A., D.G.M., A.O.-L.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), the Division of Genetics and Genomics, Boston Children's Hospital (V.S.G., A.O.-L.), and Harvard Medical School (V.S.G., A.O.-L.), Boston - all in Massachusetts; L'institut du Thorax (K.R., B.I., S.B., B.C.), Service de Radiopediatrie (A.P.), and Service de Génétique Médicale (B.I., S.B., B.C.), Nantes Université, Centre Hospitalier Universitaire (CHU) de Nantes, Centre National de la Recherche Scientifique (CNRS), INSERM, Nantes, and Institut Neuromyogène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, CNRS, INSERM (N.C., D.S.), and Service de Génétique, Hospices Civils de Lyon (N.C., P.M., D.S.), Lyon - all in France; the Departments of Neurology (E.Y., K.-M.L., M.C.A., G.L.C.) and Pharmacology (G.L.C.), Northwestern University Feinberg School of Medicine, Chicago; the Undiagnosed Diseases Network and the Department of Molecular and Human Genetics, Baylor College of Medicine, Houston (C.A.B., D.R.M., H.D., J.A.R., L.T.E., S. Ketkar), and the Department of Pediatrics, University of Texas Southwestern Medical Center (S. Kayani), and Coalition to Cure CHD2 (B.B.), Dallas; the Departments of Immunology and Regenerative Biology and Molecular Neuroscience, Weizmann Institute of Science, Rehovot, Israel (Y.S., I.U.); and the Centre for Population Genomics, Garvan Institute of Medical Research and University of New South Wales Sydney, Sydney (D.G.M.), and the Centre for Population Genomics, Murdoch Children's Research Institute, Melbourne, VIC (D.G.M.) - both in Australia.

encodes a human long noncoding RNA (lncRNA) adjacent to , a coding gene in which de novo loss-of-function variants cause developmental and epileptic encephalopathy. Here, we report our findings in three unrelated children with a syndromic, early-onset neurodevelopmental disorder, each of whom had a de novo deletion in the locus. The children had severe encephalopathy, shared facial dysmorphisms, cortical atrophy, and cerebral hypomyelination - a phenotype that is distinct from the phenotypes of patients with haploinsufficiency.

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K secretion in the distal nephron has a critical role in K homeostasis and is the primary route by which K is lost from the body. Renal K secretion is enhanced by increases in dietary K intake and by increases in tubular flow rate in the distal nephron. This review addresses new and important insights regarding the mechanisms underlying flow-induced K secretion (FIKS).

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Objectives: Hemolysis is a contributor to CS-AKI. Biochemistry analyzers provide a hemolysis index to quantify in vitro hemolysis, a condition that can, for example, affect the accuracy of potassium concentration measurements. We aimed to assess whether the postoperative plasma level of the hemolysis index (HI) could aid the early recognition of patients at risk for cardiac surgery-associated acute kidney injury (CS-AKI) and also to evaluate other hemolysis indicators: plasma carboxyhemoglobin (COHb) and methemoglobin (MetHb).

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Two recombinases, RAD51 and DMC1, catalyze meiotic break repair to ensure crossovers (COs) between homologous chromosomes (interhomolog) rather than between sisters (intersister). FIDGETIN-LIKE-1 (FIGL1) downregulates both recombinases. However, the understanding of how FIGL1 functions in meiotic repair remains limited.

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