100,295 results match your criteria: "Paul Valéry University[Affiliation]"

Novel Real-Time Fluoroscopic Assessment Method of Transcatheter Heart Valve Expansion Following Balloon-Expandable TAVR.

Circ Cardiovasc Interv

January 2025

Centre for Cardiovascular Innovation, University of British Columbia, Vancouver, Canada. (A.H., J.J., S.O., K.M., J.A.L., P.B., D.A.W., S.L.S., J.G.W., J.S.).

Background: Transcatheter heart valve (THV) underexpansion after transcatheter aortic valve replacement may be associated with worse outcomes. THV expansion can be assessed fluoroscopically using a pigtail for calibration; however, the accuracy of this technique specific to transcatheter aortic valve replacement is unknown. We assessed the accuracy and reproducibility of a novel fluoroscopic method to assess THV expansion using the THV commissural post for calibration.

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Objective: The Heat Shock Protein 70 (HSP70) family is a highly conserved group of molecular chaperones essential for maintaining cellular homeostasis. These proteins are necessary for protein folding, assembly, and degradation and involve cell recovery from stress conditions. HSP70 proteins are upregulated in response to heat shock, oxidative stress, and pathogenic infections.

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In the rapid climate change scenario and subsequent rainfall patterns, drought has emerged as a bottleneck for crop production across crops, especially in rainfed rice. Drought significantly affects the development and production of most modern rice cultivars. Thus, recent breeding efforts have aimed to integrate drought tolerance traits in existing rice varieties through conventional and molecular approaches.

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William Budd (1811-1880) was a pioneering British physician whose work on infectious diseases, particularly typhoid fever, significantly advanced the understanding of epidemiology and public health in the 19th century. This review examines Budd's life, medical career, and groundbreaking contributions to the study of infectious diseases, focusing on his influential research into the transmission of typhoid fever, advocacy for public health reforms, and lasting legacy in epidemiology. Through meticulous research and innovative thinking, Budd laid the groundwork for modern approaches to disease control and prevention, cementing his place as a key figure in medical history.

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Light-driven biotransformations in recombinant cyanobacteria benefit from the atom-efficient regeneration of reaction equivalents like NADPH from water and light by oxygenic photosynthesis. The self-shading of photosynthetic cells throughout the reaction volume, along with the need for extended light paths, limits adequate light supply and significantly restricts the potential for upscaling. Here, we present a flat panel photobioreactor (1 cm optical path length) as a scalable system to provide efficient illumination at high cell densities.

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Emoquine-1: A Hybrid Molecule Efficient against Multidrug-Resistant Parasites, Including the Artemisinin-Resistant Quiescent Stage, and Also Active In Vivo.

J Med Chem

January 2025

Laboratoire de Chimie de Coordination du CNRS, LCC-CNRS, Inserm ERL 1289 MAAP, Université de Toulouse, 205 route de Narbonne, 31077 Toulouse cedex, France.

To challenge the multidrug resistance of malaria parasites, new hybrid compounds were synthesized and evaluated against laboratory strains and multidrug-resistant clinical isolates. Among these hybrids, emoquine-1 was the most active on proliferative , with IC values in the range of 20-55 nM and a high selectivity index with respect to mammalian cells. This drug retained its activity on several multiresistant field isolates from Cambodia and Guiana, exhibited no cross-resistance to artemisinin, and is also very active against the quiescent stage of the artemisinin-resistant parasites, three features that constitute the gold standard for new antimalarial drugs.

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There is an ever-increasing demand for novel plant proteins that are non-allergenic, nutritionally complete, adequately functional, and can be sustainably sourced. RuBisCo is a protein that fulfills these requirements and can be sourced from alfalfa (Medicago sativa). Therefore, this study investigated several techniques to adequately extract alfalfa protein.

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Objective: To present a remodeling of the electroretinogram waveform using a covariance matrix to identify regions of interest and distinction between a control and attention deficit/hyperactivity disorder (ADHD) group. Electroretinograms were recorded in n = 25 ADHD (16 male; age 11.9 ± 2.

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Objective: This article outlines the evaluation model for the Cooking with Confidence (CWC) program, developed using Bandura's Social Learning Theory as its conceptual framework. The evaluation aimed to: (1) Examine participant characteristics in the CWC program, (2) Assess changes in cooking knowledge, skill acquisition, self-efficacy, and confidence, and (3) Identify barriers and facilitators to participant engagement. CWC is a community-based educational program designed to help autistic young adults develop independent living skills and promote health through hands-on cooking classes.

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Background: Ovarian cancer is a leading cause of mortality worldwide. The third most prevalent gynecological cancer globally, following cervical and uterine cancer, and the third leading cause of cancer-related mortality among women in Sub-Saharan Africa, including Ethiopia. The time ovarian cancer patients have to wait between diagnosis and initiation of treatment are the indicators of quality in cancer care and influence patient outcomes.

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Optimization of chemical transfection in airway epithelial cell lines.

BMC Biotechnol

January 2025

Centre for Heart Lung Innovation, St. Paul's Hospital, Providence Healthcare Research Institute, University of British Columbia, 1081 Burrard St, Vancouver, BC, V6Z 1Y6, Canada.

Background: Chemical transfection is a widely employed technique in airway epithelium research, enabling the study of gene expression changes and effects. Additionally, it has been explored for its potential application in delivering gene therapies. Here, we characterize the transfection efficiency of EX-EGFP-Lv105, an EGFP-expressing plasmid into three cell lines commonly used to model the airway epithelium (1HAEo-, 16HBE14o-, and NCI-H292).

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Early T-cell Precursor Acute Lymphoblastic Leukemia (ETP-ALL) is an immature subtype of T-cell acute lymphoblastic leukemia (T-ALL) commonly show deregulation of the LMO2-LYL1 stem cell transcription factors, activating mutations of cytokine receptor signaling, and poor early response to intensive chemotherapy. Previously, studies of the Lmo2 transgenic mouse model of ETP-ALL identified a population of stem-like T-cell progenitors with long-term self-renewal capacity and intrinsic chemotherapy resistance linked to cellular quiescence. Here, analyses of Lmo2 transgenic mice, patient-derived xenografts, and single-cell RNA-sequencing data from primary ETP-ALL identified a rare subpopulation of leukemic stem cells expressing high levels of the cytokine receptor FLT3.

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Targeting murine metastatic cancers with cholera toxin A1-adjuvanted peptide vaccines.

Hum Vaccin Immunother

December 2025

TIMM Laboratory, Sahlgrenska Center for Cancer Research, Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

The dissemination of tumor cells with ensuing metastasis is responsible for most cancer-related deaths. Cancer vaccines may, by inducing tumor-specific effector T cells, offer a strategy to eliminate metastasizing tumor cells. However, several obstacles remain in the development of effective cancer vaccines, including the identification of adjuvants that enhance the evolvement and efficacy of tumor-specific T cells.

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Consumer experiences of emergency department pre-triage waiting period: A mixed-methods study.

Australas Emerg Care

January 2025

Eastern Health Emergency Medicine Program, Melbourne, Victoria, Australia; Eastern Health Clinical School, Monash University, Melbourne, Victoria, Australia. Electronic address:

Background: Emergency department pre-triage waiting periods have received limited attention. We aimed to explore the pre-triage experiences and perspectives of consumers attending emergency departments.

Methods: This mixed-methods cross-sectional study included 92 participants (patients, carers, and guardians) who attended one of three public hospital emergency departments in metropolitan Melbourne (Victoria, Australia).

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Online survey about the current status of CT protocols in hepatocellular carcinoma (HCC) in the year 2023/2024. Moreover, the usage of structured reporting using LI-RADS and mRECIST was surveyed and the results were compared with a survey from 2020.Radiologists working in outpatient or inpatient care in Germany were invited.

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Effect of siponimod on retinal thickness, a marker of neurodegeneration, in participants with SPMS: Findings from the EXPAND OCT substudy.

Mult Scler Relat Disord

January 2025

Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), Departments of Head, Spine and Neuromedicine, Clinical Research, Biomedicine and Biomedical Engineering, University Hospital and University of Basel, Basel, Switzerland.

Background: People with MS show abnormal thinning of the retinal layers, which is associated with clinical disability and brain atrophy, and is a potential surrogate marker of neurodegeneration and treatment effects.

Objective: To evaluate the utility of retinal thickness as a surrogate marker of neurodegeneration and treatment effect in participants with secondary progressive MS (SPMS) from the optical coherence tomography (OCT) substudy of the EXPAND Phase 3 clinical trial (siponimod versus placebo).

Methods: In the OCT substudy population (n = 159), treatment effects on change in the average thickness of the retinal layer, peripapillary retinal nerve fiber layer (pRNFL), and combined macular ganglion cell and inner plexiform layers (GCIPL) were analyzed by high-definition spectral domain OCT at months 3, 12, and 24.

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Electromyography (EMG) is increasingly used in stroke assessment research, with studies showing that EMG co-contraction (EMG-CC) of upper limb muscles can differentiate stroke patients from healthy individuals and correlates with clinical scales assessing motor function. This suggests that EMG-CC has potential for both assessing motor impairments and monitoring recovery in stroke patients. However, systematic reviews on EMG-CC's effectiveness in stroke assessment are lacking.

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Isoelectric Point of Metal Oxide Films Formed by Anodization.

Langmuir

January 2025

Chemistry and Structure of novel Materials, University of Siegen, Paul-Bonatz Strasse 9-11, 57068 Siegen, Germany.

The surface charge of metal oxides is an important property that significantly contributes to a wide range of phenomena, including adsorption, catalysis, and material science. The surface charge can be predicted by determining the isoelectric point (IEP) of a material and the pH of a solution. Although there have been several studies of the IEP of metal oxide (nano)particles, only a few have reported the IEP of metal oxide films.

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Pharmacology of Intestinal Inflammation and Repair.

Annu Rev Pharmacol Toxicol

January 2025

Institute of Digestive Health Research (IRSD), Toulouse University, INSERM 1022, INRAe, ENVT, University of Toulouse III Paul Sabatier, Toulouse, France;

Chronic inflammation is a common trait in the pathogenesis of several diseases of the gut, including inflammatory bowel disease and celiac disease. Control of the inflammatory response is crucial in these pathologies to avoid tissue destruction and loss of intestinal function. Over the last 50 years, the identification of the mechanisms and mediators involved in the acute phase of the inflammatory response, which is characterized by massive leukocyte recruitment, has led to a number of therapeutic options.

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Human Oncostatin M deficiency underlies an inherited severe bone marrow failure syndrome.

J Clin Invest

January 2025

Laboratory of Genome Dynamics in the Immune, INSERM UMR 116, Équipe Labellisée LIGUE 2023, Paris, France.

Oncostatin M (OSM) is a cytokine with the unique ability to interact with both the OSM receptor (OSMR) and the leukemia inhibitory factor receptor (LIFR). On the other hand, OSMR interacts with IL31RA to form the interleukin-31 receptor. This intricate network of cytokines and receptors makes it difficult to understand the specific function of OSM.

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Centriolar cap proteins CP110 and CPAP control slow elongation of microtubule plus ends.

J Cell Biol

March 2025

Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.

Centrioles are microtubule-based organelles required for the formation of centrosomes and cilia. Centriolar microtubules, unlike their cytosolic counterparts, are stable and grow very slowly, but the underlying mechanisms are poorly understood. Here, we reconstituted in vitro the interplay between the proteins that cap distal centriole ends and control their elongation: CP110, CEP97, and CPAP/SAS-4.

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Background: Invasive systems are commonly used for monitoring intracranial pressure (ICP) in traumatic brain injury (TBI) and are considered the gold standard. The availability of invasive ICP monitoring is heterogeneous, and in low- and middle-income settings, these systems are not routinely employed due to high cost or limited accessibility. The aim of this consensus was to develop recommendations to guide monitoring and ICP-driven therapies in TBI using non-invasive ICP (nICP) systems.

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Unlabelled: Enteroviruses cause nearly 1 billion global infections annually and are associated with a diverse array of human illnesses. Among these, myocarditis and the resulting chronic inflammation have been recognized as major contributing factors to virus-induced heart failure. Despite our growing understanding, very limited therapeutic strategies have been developed to address the pathological consequences of virus-induced chronic innate immune activation.

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