10,612 results match your criteria: "Universite Paris-Diderot[Affiliation]"

Long-term outcomes after severe acute kidney injury in critically ill patients: the SALTO study.

Ann Intensive Care

March 2023

Service de Réanimation Médico-Chirurgicale, AP-HP, Hôpital Avicenne, 125 rue de Stalingrad, 93000, Bobigny, France.

Background: The extent of the consequences of an episode of severe acute kidney injury (AKI) on long-term outcome of critically ill patients remain debated. We conducted a prospective follow-up of patients included in a large multicenter clinical trial of renal replacement therapy (RRT) initiation strategy during severe AKI (the Artificial Kidney Initiation in Kidney Injury, AKIKI) to investigate long-term survival, renal outcome and health related quality of life (HRQOL). We also assessed the influence of RRT initiation strategy on these outcomes.

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  • Nematodes of a specific genus are valuable for studying how sex is determined due to their three types of sexual morphs—males, females, and hermaphrodites—leading to unusual sex ratios.
  • A new, undescribed species (n. sp.) has been introduced, featuring a draft nuclear genome that is roughly 60 Mb and contains more than 11,000 protein-coding genes.
  • Environmental factors play a role in whether offspring develop as hermaphrodites or females, and researchers were able to identify potential X chromosome scaffolds using an ancestral chromosomal framework.
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Background & Aims: Autoimmune hepatitis (AIH) is a rare indication for liver transplantation (LT). The aims of this study were to evaluate long-term survival after LT for AIH and prognostic factors, especially the impact of recurrent AIH (rAIH).

Methods: A multicentre retrospective nationwide study including all patients aged ≥16 transplanted for AIH in France was conducted.

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DNA methylation in plant genomes occurs in different sequences and genomic contexts that have very different properties. DNA methylation that occurs in CG (mCG) sequence context shows transgenerational stability and high epimutation rate, and can thus provide genealogical information at short time scales. However, due to meta-stability and because mCG variants may arise due to other factors than epimutation, such as environmental stress exposure, it is not clear how well mCG captures genealogical information at micro-evolutionary time scales.

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Introduction: Ventilator-associated pneumonia (VAP) remains the leading cause of infections treated in the intensive care units (ICU). In a personalised care approach, we hypothesise that the duration of treatment of VAP can be reduced in function of the response to treatment.

Methods And Analysis: The Antimicrobial Stewardship for Ventilator-Associated Pneumonia in Intensive Care (ASPIC) trial is a pragmatic national multicentre, phase III, non-inferiority, comparative randomised (1:1) single-blinded clinical trial.

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Sustained ANKRD26 expression associated with germline ANKRD26 mutations causes thrombocytopenia 2 (THC2), an inherited platelet disorder associated with a predisposition to leukemia. Some patients also present with erythrocytosis and/or leukocytosis. Using multiple human-relevant in vitro models (cell lines, primary patients' cells and patient-derived induced pluripotent stem cells) we demonstrate for the first time that ANKRD26 is expressed during the early steps of erythroid, megakaryocyte and granulocyte differentiation, and is necessary for progenitor cell proliferation.

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The European Liver and Intestine Transplant Association, ELITA, promoted a Consensus Conference involving 20 experts across the world which generated updated guidelines on HBV prophylaxis in liver transplant candidates and recipients. This study explores the economic impact associated with the implementation of the new ELITA guidelines. To this aim, a condition-specific cohort simulation model has been developed to compare new and historical prophylaxis, including only pharmaceutical cost and using the European perspective.

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  • Current prognostic scores for acutely decompensated cirrhosis patients, especially those with acute-on-chronic liver failure, often underestimate mortality risk due to not accounting for systemic inflammation's impact.
  • A study used serum metabolomics from two large European cohorts to identify key metabolites linked to short-term mortality, leading to the creation of two new predictive models.
  • Both models significantly outperformed the existing MELDNa score in predicting death within 28 days of hospital admission, demonstrating better accuracy in patients with acute-on-chronic liver failure.
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Background: The optimal duration of antimicrobial therapy for urinary tract infections (UTIs) in men remains controversial.

Methods: To compare 7 days to 14 days of total antibiotic treatment for febrile UTIs in men, this multicenter randomized, double-blind. placebo-controlled noninferiority trial enrolled 282 men from 27 centers in France.

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Hyperleukocytosis is associated with a significant early mortality rate in patients with acute myeloid leukemia (AML). To date, no controlled trial has ever evaluated a strategy to reduce this risk, and the initial management of these patients remains heterogeneous worldwide. The aim of the present study was to evaluate the influence of a short course of intravenous dexamethasone on the early outcomes of patients with hyperleukocytic AML with white blood cell (WBC) count above 50 × 10/L.

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The NFIA-ETO2 fusion is the product of a t(1;16)(p31;q24) chromosomal translocation, so far, exclusively found in pediatric patients with pure erythroid leukemia (PEL). To address the role for the pathogenesis of the disease, we facilitated the expression of the NFIA-ETO2 fusion in murine erythroblasts (EBs). We observed that NFIA-ETO2 significantly increased proliferation and impaired erythroid differentiation of murine erythroleukemia cells and of primary fetal liver-derived EBs.

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  • Eosinophilia, a condition marked by high eosinophil levels in the blood, can be significant in ICU patients but has been understudied regarding its causes and implications.
  • In a study of 620 ICU patients over 6 years, two groups based on the timing of eosinophilia were identified: early (within 24 hours) and delayed (after 24 hours), with varying causes and symptoms.
  • The survival rates at 60 days post-admission were similar for both groups, and specific risk factors related to mortality were identified, highlighting the need for tailored management approaches based on the timing of eosinophilia onset.
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Manganese (Mn) is an essential metal for plant growth. The most important Mn-containing enzyme is the Mn4CaO5 cluster that catalyzes water oxidation in photosystem II (PSII). Mn deficiency primarily affects photosynthesis, whereas Mn excess is generally toxic.

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As the field of nanocrystal-based optoelectronics matures, more advanced techniques must be developed in order to reveal the electronic structure of nanocrystals, particularly with device-relevant conditions. So far, most of the efforts have been focused on optical spectroscopy, and electrochemistry where an absolute energy reference is required. Device optimization requires probing not only the pristine material but also the material in its actual environment (i.

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Setting-up a high quality, compliant and efficient pharmacovigilance (PV) system in multi-country clinical trials can be more challenging for academic sponsors than for companies. To ensure the safety of all participants in academic studies and that the PV system fulfils all regulations, we set up a centralized PV system that allows sponsors to delegate work on PV. This initiative was put in practice by our Inserm-ANRS MIE PV department in two distinct multinational European consortia with 19 participating countries: conect4children (c4c) for paediatrics research and EU-Response for Covid-19 platform trials.

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Motions of a dimer on a periodic potential.

Phys Rev E

December 2022

Laboratoire "Matière et Systèmes Complexes" (MSC), UMR 7057 CNRS, Université Paris-Diderot (Paris 7), 75205 Paris Cedex 13, France.

A dimer on a periodic potential is a simple system that exhibits a surprisingly rich dynamics. This system is conservative, but it is nonlinear and nonintegrable. In a previous work, we evidenced the autoparametric excitation of the relative motion by the center of mass in two limiting cases (very small or very large initial energy, compared to the external potential depth).

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  • Richter syndrome (RS) represents the transformation of chronic lymphocytic leukemia (CLL) into an aggressive form of lymphoma, primarily diffuse large B-cell lymphoma (DLBCL).
  • Researchers analyzed 58 primary RS samples using DNA methylation and transcriptome profiling, leading to the identification of epigenetic patterns and a method to assess CLL-RS clonal relationships without the original CLL tumor DNA.
  • The study developed classifiers based on DNA and transcriptomic data, revealing a poor-prognosis subset of DLBCL that shares similarities with RS, highlighting the potential to improve prognosis assessment and treatment strategies for affected patients.
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Correction for 'Factors impacting the aggregation/agglomeration and photocatalytic activity of highly crystalline spheroid- and rod-shaped TiO nanoparticles in aqueous solutions' by Thomas Degabriel, Elodie Colaço , , 2018, , 12898-12907, https://doi.org/10.1039/C7CP08054A.

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Auroral zones are regions where, in an average sense, aurorae due to solar activity are most likely spotted. Their shape and, similarly, the geographical locations most vulnerable to extreme space weather events (which we term 'danger zones') are modulated by Earth's time-dependent internal magnetic field whose structure changes on yearly to decadal timescales. Strategies for mitigating ground-based space weather impacts over the next few decades can benefit from accurate forecasts of this evolution.

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The aim of this work was to assess the efficiency of freshwater green microalga, Chlorella sorokiniana for diclofenac sodium (DFS) removal, and metabolic response of alga to comprehend the metabolic pathways involved/affected during DFS decontamination. Results showed 91.51 % removal of DFS could be achieved within 9 days of algal treatment along with recovery of enhanced value-added bioresources i.

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We introduce a response theory based transformation for excitonic polarizability into mobility, which allows an in-depth analysis of optical pump-THz probe conductivity experiments, and compare the results with those of a conventional oscillator model. THz spectroscopy is of high interest for investigations in high bandwidth and low noise nanoelectronics or solar energy harvesting nanomaterials. In contrast to simple scaling of estimated static polarizability, suggested in the literature, an appropriate transformation of the spectral response into mobility can be achieved in principle forward and backward due to the presence of dephasing, as we show for the exemplary system of CdSe nanoplatelets.

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Relationships between neuropsychological performance, insight, medication adherence, and social metacognition in schizophrenia.

Schizophr Res

February 2023

Fondation Fondamental, Créteil, France; Centre Hospitalier de Versailles, Service Hospitalo-Universitaire de Psychiatrie d'Adultes et d'Addictologie, Le Chesnay, France; Université Paris-Saclay, Université Versailles Saint-Quentin-En-Yvelines, DisAP-DevPsy-CESP, INSERM UMR1018, 94807 Villejuif, France.

Background: Social metacognition is still poorly understood in schizophrenia, particularly its neuropsychological basis and its impact on insight and medication adherence. We therefore quantified social metacognition as the agreement between objective and subjective mentalization and assessed its correlates in a sample of individuals with schizophrenia spectrum disorders.

Methods: Participants consisted of 143 patients with schizophrenia or schizoaffective disorders who underwent a metacognitive version of a mentalization task, an extensive neuropsychological battery, and a clinical evaluation to assess their insight into illness and medication adherence.

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Senescence is a key event in the impairment of adipose tissue (AT) function with obesity and aging but the underlying molecular and cellular players remain to be fully defined, particularly with respect to the human AT progenitors. We have found distinct profiles of senescent progenitors based on AT location between stroma from visceral versus subcutaneous AT. In addition to flow cytometry, we characterized the location differences with transcriptomic and proteomic approaches, uncovering the genes and developmental pathways that are underlying replicative senescence.

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Creating bulk ultrastable glasses by random particle bonding.

Nat Commun

January 2023

Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France.

A recent breakthrough in glass science has been the synthesis of ultrastable glasses via physical vapor deposition techniques. These samples display enhanced thermodynamic, kinetic and mechanical stability, with important implications for fundamental science and technological applications. However, the vapor deposition technique is limited to atomic, polymer and organic glass-formers and is only able to produce thin film samples.

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