Publications by authors named "Chevalier C"

Purpose: Sleep quality contributes to the improvement of quality of life in cancer patients. However, sleep disturbances, of variable and heterogeneous etiologies, are common and frequently overlooked in lung cancer patients. The present study undertakes a rapid review of available peer-reviewed literature on sleep quality in lung cancer patients, specifically non-small-cell lung cancer patients.

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Heart failure (HF) increases the risk of developing atrial fibrillation (AF), leading to increased morbidity and mortality. Therefore, better prediction of this risk may improve treatment strategies. Although several predictors based on clinical data have been developed, the establishment of a transcriptome-based predictor of AF incidence in HF has proven to be more problematic.

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Human microbiota-associated murine models, using fecal microbiota transplantation (FMT) from human donors, help explore the microbiome's role in diseases like Alzheimer's disease (AD). This study examines how gut bacteria from donors with protective factors against AD influence behavior and brain pathology in an AD mouse model. Female 3xTgAD mice received weekly FMT for 2 months from (i) an 80-year-old AD patient (AD-FMT), (ii) a cognitively healthy 73-year-old with the protective APOEe2 allele (APOEe2-FMT), (iii) a 22-year-old healthy donor (Young-FMT), and (iv) untreated mice (Mice-FMT).

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The objective of this study is to assess the potential impact of nickel mining activity on zooplankton communities in a coral reef channel lagoon (Voh Koné, New Caledonia). During a multidisciplinary campaign in February 2018, we analyzed the variation in zooplankton abundance, biomass and taxonomic diversity, as a function of the distance from the metallurgical plant site and of hydrodynamic conditions and environmental variables. We also compared these results with those obtained in an earlier study conducted in 2009 prior the mining.

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Cardiopharyngeal mesoderm contributes to the formation of the heart and head muscles. However, the mechanisms governing cardiopharyngeal mesoderm specification remain unclear. Here, we reproduce cardiopharyngeal mesoderm specification towards cardiac and skeletal muscle lineages with gastruloids from mouse embryonic stem cells.

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Objectives: During the SARS-CoV-2 pandemic, there has been significant increased use of vvECMO as rescue therapy. Patients with COVID-19 as anticoagulation is needed for vvECMO support, may develop bleeding complications requiring an increased number of RBC transfusions. We would like to report the RBC transfusion needs following the implementation of an ECMO program.

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Article Synopsis
  • Relapse after stopping immunosuppression treatment is common in Autoimmune Hepatitis (AIH) patients, and there's a need for better non-invasive biomarkers to predict this risk.
  • The study analyzed blood samples from 58 active AIH patients, 56 in remission, and 31 with NASH, focusing on the levels of activated T cell subsets and the cytokine BAFF.
  • Results showed that increased frequencies of certain activated T cells and high BAFF levels in remission patients were strongly linked to a higher chance of relapse after treatment withdrawal, suggesting these could serve as useful biomarkers for monitoring AIH.
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Background: Zebrafish are widely used in various research fields and to fulfil the diverse research needs, numerous zebrafish lines are available, each with a unique domestication background, potentially resulting in intraspecies differences in specific biological functions. Few studies have compared multiple zebrafish lines under identical conditions to investigate both inter- and intra-line variability related to different functions. However, such variability could pose a challenge for the reproducibility of results in studies utilising zebrafish, particularly when the line used is not clearly specified.

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Exciton-polaritons, hybrid light-matter excitations arising from the strong coupling between excitons in semiconductors and photons in photonic nanostructures, are crucial for exploring the physics of quantum fluids of light and developing all-optical devices. Achieving room temperature propagation of polaritons with a large excitonic fraction is challenging but vital, e.g.

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Fish domestication progresses through five levels: from the initial acclimatization to captivity (Level 1), to the life cycle completion in captivity (Level 4), and even to the implementation of selective breeding programs (Level 5). Domestication leads to phenotypic changes over generations, sometimes from the very first generation. Behavioral traits are among the first to change.

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Current poultry vaccines against influenza A viruses target the globular head region of the hemagglutinin (HA1), providing limited protection against antigenically divergent strains. Experimental subunit vaccines based on the conserved ectodomain of the matrix protein 2 (M2e) induce cross-reactive antibody responses, but fail to fully prevent virus shedding after low pathogenic avian influenza (LPAI) virus challenge, and are ineffective against highly pathogenic avian influenza (HPAI) viruses. This study assessed the benefits of combining nanoparticles bearing three tandem M2e repeats (NR-3M2e nanorings or NF-3M2e nanofilaments) with an HA1 subunit vaccine in protecting chickens against a heterologous HPAI H5N1 virus challenge.

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  • Researchers have created a new ex vivo model using lung transplant methods to study how SARS-CoV-2 infects human lungs, addressing limitations of animal models and lab systems.
  • The study used single-cell RNA sequencing to determine that the virus primarily targets alveolar macrophages (AMs) and monocyte-derived macrophages (MoMacs), with MoMacs showing a stronger inflammatory response.
  • Findings indicate that the Wuhan strain of SARS-CoV-2 is more effective than the D614G variant, and understanding how the virus interacts with lung macrophages could inform prevention strategies.
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Objective: To investigate the repairing and anti-wrinkle efficacy of the facial cream enriched with C-xyloside, aiming at comprehensively evaluating its skin anti- aging effect and clarify its potential mechanism of action.

Methods: The repairing efficacy was studied on 3D epidermis skin model and the antiaging efficacy was studied on ex-vivo human skin. Two clinical studies were conducted with Chinese females.

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  • A new blood test interpretation tool has been created for clinical dementia practice, focusing on key biomarkers like P-tau181, GFAP, and NfL for more accurate diagnoses.
  • The tool was developed using data from 1,199 plasma samples, with successful validation in independent cohorts showing high diagnostic accuracy for identifying different types of dementia.
  • The final tool features visualizations like UpSet and density plots to help clinicians interpret results effectively in real-world settings.
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Background: The treatment of stage I-III HPV+ oropharyngeal squamous cell carcinoma (HPV-OPSCC) is based on either surgery ± adjuvant therapy or exclusive radio±chemotherapy. We sought to compare these two therapeutic strategies in terms of efficacy, tolerance and quality of life (QoL).

Methods: Patients treated for stage I-III HPV-OPSCC from 2010 to 2021 in 3 academic centers were included and sorted according to the treatment strategy: surgery or exclusive radio±chemotherapy.

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Background: The planification of radiation therapy (RT) for pancreatic cancer (PC) requires a dosimetric computed tomography (CT) scan to define the gross tumor volume (GTV). The main objective of this study was to compare the inter-observer variability in RT planning between the arterial and the venous phases following intravenous contrast.

Methods: PANCRINJ was a prospective monocentric study that included twenty patients with non-metastatic PC.

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Epithelial cells are the first point of contact for bacteria entering the respiratory tract. Streptococcus pneumoniae is an obligate human pathobiont of the nasal mucosa, carried asymptomatically but also the cause of severe pneumoniae. The role of the epithelium in maintaining homeostatic interactions or mounting an inflammatory response to invasive S.

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Introduction: Atrial fibrillation (AF) is associated with an elevated risk of cognitive impairment and dementia. Understanding the cognitive sequelae and brain structural changes associated with AF is vital for addressing ensuing health care needs.

Methods And Results: We examined 1335 stroke-free individuals with AF and 2683 matched controls using neuropsychological assessments and multimodal neuroimaging.

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FW2.2 (standing for FRUIT WEIGHT 2.2), the founding member of the CELL NUMBER REGULATOR (CNR) gene family, was the first cloned gene underlying a quantitative trait locus (QTL) governing fruit size and weight in tomato (Solanum lycopersicum).

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  • A population study of 1,064 participants found that 23% had unrecognized myocardial scar (UMS), indicating a significant prevalence of this condition in people without known heart disease.
  • UMS was mostly non-ischemic (89%), often affecting the basal inferolateral left ventricle, and was linked to lower left ventricular ejection fraction (LVEF) and higher LV mass.
  • Specifically, ischemic UMS was associated with lower LVEF, higher LV mass, and a history of diabetes, highlighting the importance of assessing UMS for better understanding cardiac health.
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  • Endoreduplication, a process where plant cells replicate their DNA without dividing, is crucial for plant growth and is especially important in the development of cells in fruits like tomatoes.
  • This study used tomato pericarp tissue to investigate how gene expression changes with increased DNA content, revealing that ploidy levels affect which genes are active during fruit growth.
  • The research identified distinct expression patterns for genes based on development and ploidy level, and mapped the distribution of these levels in the pericarp, confirming that endoreduplication varies by cell layer as the fruit develops.
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Introduction: Linear accelerator (linac) incorporating a magnetic resonance (MR) imaging device providing enhanced soft tissue contrast is particularly suited for abdominal radiation therapy. In particular, accurate segmentation for abdominal tumors and organs at risk (OARs) required for the treatment planning is becoming possible. Currently, this segmentation is performed manually by radiation oncologists.

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Background: Autism spectrum disorders affect more than 1% of the population, impairing social communication and increasing stereotyped behaviours. A micro-deletion of the 16p11.2 BP4-BP5 chromosomic region has been identified in 1% of patients also displaying intellectual disabilities.

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Climate change is one of the biggest threats that human society currently needs to face. Heat waves associated with global warming negatively affect plant growth and development and will increase in intensity and frequency in the coming years. Tomato is one of the most produced and consumed fruit in the world but remarkable yield losses occur every year due to the sensitivity of many cultivars to heat stress (HS).

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Background: Immunotherapy targeting the PD-1/PD-L1 pathway is a standard of care in a number of metastatic malignancies, but less than a fifth of patients are expected to respond to ICIs (Immune Checkpoint Inhibitors). In a clinical trial, combining the anti-TIGIT (T cell immunoreceptor with Ig and ITIM domains) Mab (monoclonal antibody) tiragolumab with atezolizumab improved outcomes in non-small cell lung cancer. In preclinical models, SBRT (Stereotactic Body Radiation Therapy) could increase expression levels of the inhibitory co-receptors TIGIT and PD-L1.

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