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

We present an improved measurement of the carbon-nitrogen-oxygen (CNO) solar neutrino interaction rate at Earth obtained with the complete Borexino Phase-III dataset. The measured rate, R_{CNO}=6.7_{-0.

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•OGM surgery is much more complex than a simple debate of "from above or from below" (transcranial vs endoscopic).•Lateral Sub-frontal and Superior Interhemispheric seem the most effective, superior and versatile approaches for OGM.•Minimally Invasive Transcranial approaches showed no inferiority in OGM sized <4 ​cm.

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Background And Aims: Autoimmune hepatitis (AIH) is a rare indication (<5%) for liver transplantation (LT). The aim of this study was to describe the early outcome after LT for AIH.

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

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Retrospective analysis of a cohort of 41 B-cell prolymphocytic leukemia patients: impact of genetics and targeted therapies (a FILO study).

Haematologica

June 2023

Sorbonne Université, Service d'Hématologie Clinique, Hôpital Pitié-Salpêtrière, AP-HP, Paris, France; Centre de Recherche des Cordeliers, INSERM, Drug resistance in hematological malignancies (DRIHM) Team, Sorbonne Université, Université Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, F-75006 Paris.

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Mechano-biochemical marine stimulation of inversion, gastrulation, and endomesoderm specification in multicellular Eukaryota.

Front Cell Dev Biol

December 2022

Mechanics and Genetics of Embryonic Development Group, Institut Curie, Centre OCAV PSL Research University, CNRS, UMR168, Inserm, Sorbonne University, Paris, France.

The evolutionary emergence of the primitive gut in Metazoa is one of the decisive events that conditioned the major evolutionary transition, leading to the origin of animal development. It is thought to have been induced by the specification of the endomesoderm (EM) into the multicellular tissue and its invagination (i.e.

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Evidence of structural discontinuities in the inner core of red-giant stars.

Nat Commun

December 2022

LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Université, Université Paris Diderot, 92195, Meudon, France.

Red giants are stars in the late stages of stellar evolution. Because they have exhausted the supply of hydrogen in their core, they burn the hydrogen in the surrounding shell . Once the helium in the core starts fusing, the star enters the clump phase, which is identified as a striking feature in the color-magnitude diagram.

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Shaping inheritance: how distinct reproductive strategies influence DNA methylation memory in plants.

Curr Opin Genet Dev

February 2023

Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, CNRS, INRAE, Université Evry, Université Paris Diderot, 91190 Gif sur Yvette, France. Electronic address:

DNA methylation is a major epigenetic mark involved in the silencing of genes and transposable elements (TEs). DNA methylation varies significantly across the plant life cycle, but is efficiently reinforced during reproduction, ensuring stable silencing of TEs. Plants are remarkably flexible in their mode of reproduction and numerous species, including crops, can propagate asexually, skipping one or more of these critical reinforcement steps.

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Sex-dependent expression of neutrophil gelatinase-associated lipocalin in aortic stenosis.

Biol Sex Differ

December 2022

Cardiovascular Translational Research, Navarrabiomed (Miguel Servet Foundation), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), C/Irunlarrea 3, 31008, Pamplona, Spain.

Background: Accumulating evidence suggest the existence of sex-related differences in the pathogenesis of aortic stenosis (AS) with inflammation, oxidative stress, fibrosis and calcification being over-represented in men. Neutrophil gelatinase-associated lipocalin (NGAL) is expressed in a myriad of tissues and cell types, and it is associated with acute and chronic pathological processes comprising inflammation, fibrosis or calcification. Sex-dependent signatures have been evidenced for NGAL which expression has been associated predominantly in males to metabolic and cardiovascular disorders.

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Strongly correlated quantum particles in lattice potentials are the building blocks for a wide variety of quantum insulators-for instance, Mott phases and density waves breaking lattice symmetry. Such collective states are accessible to bosonic and fermionic systems. To expand further the spectrum of accessible quantum matter phases, mixing both species is theoretically appealing because density order then competes with phase separation.

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Background: Ceftolozane/tazobactam, a combination antibacterial agent comprising an anti-pseudomonal cephalosporin and β-lactamase inhibitor, is approved for the treatment of hospital-acquired/ventilator-associated bacterial pneumonia (HABP/VABP) in adults. Participants in the ASPECT-NP trial received ceftolozane/tazobactam (3 g [2 g ceftolozane/1 g tazobactam] every 8 h) or meropenem (1 g every 8 h). Participants failing prior antibacterial therapy for the current HABP/VABP episode at study entry had lower 28-day all-cause mortality (ACM) rates with ceftolozane/tazobactam versus meropenem treatment.

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Aqueous alteration processes in Jezero crater, Mars-implications for organic geochemistry.

Science

December 2022

Centro de Astrobiología, Consejo Superior de Investigaciones Cientificas-Instituto Nacional de Tecnica Aeroespacial, Madrid, Spain.

The Perseverance rover landed in Jezero crater, Mars, in February 2021. We used the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument to perform deep-ultraviolet Raman and fluorescence spectroscopy of three rocks within the crater. We identify evidence for two distinct ancient aqueous environments at different times.

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Response to lithium varies widely between individuals with bipolar disorder (BD). Polygenic risk scores (PRSs) can uncover pharmacogenomics effects and may help predict drug response. Patients ( = 2,510) with BD were assessed for long-term lithium response in the Consortium on Lithium Genetics using the Retrospective Criteria of Long-Term Treatment Response in Research Subjects with Bipolar Disorder score.

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While considerable efforts have been accomplished to standardize the measurement of plasma creatinine (PCr), urine creatinine (UCr) has not been subject to the same scrutiny. UCr is importantly used when measuring biomarkers in spot urines, to assess urine output and variable dilution of urine samples. Here, we report underestimation of Jaffe UCr measurements on the Siemens Dimension Vista® analyzer, critically affecting samples with UCr ≤2 mmol/L.

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Background: Given the rapidly evolving pandemic of COVID-19 in 2020, authorities focused on the repurposing of available drugs to develop timely and cost-effective therapeutic strategies. Evidence suggested the potential utility of remdesivir in the framework of an early access program. REMDECO-19 is a multicenter national cohort study assessing the ability of remdesivir to improve the outcome of patients hospitalized with COVID-19.

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Background: The etiology of intellectual disabilities is diverse and includes both genetic and environmental factors. The genetic causes of intellectual disabilities range from chromosomal aberrations to single gene disorders. The TRAPPC9 gene has been reported to cause autosomal recessive forms of intellectual disabilities in 56 patients from consanguineous and non-consanguineous families around the world.

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A universal predictive and mechanistic urinary peptide signature in acute kidney injury.

Crit Care

November 2022

Department of Nephrology and Organ Transplantation, University Hospital of Toulouse, and French Intensive Care Renal Network, 31000, Toulouse, France.

Background: The delayed diagnosis of acute kidney injury (AKI) episodes and the lack of specificity of current single AKI biomarkers hamper its management. Urinary peptidome analysis may help to identify early molecular changes in AKI and grasp its complexity to identify potential targetable molecular pathways.

Methods: In derivation and validation cohorts totalizing 1170 major cardiac bypass surgery patients and in an external cohort of 1569 intensive care unit (ICU) patients, a peptide-based score predictive of AKI (7-day KDIGO classification) was developed, validated, and compared to the reference biomarker urinary NGAL and NephroCheck and clinical scores.

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Weekly blood Toxoplasma gondii DNA screening using real-time quantitative polymerase chain reaction (qPCR) has been implemented in all allogeneic hematopoietic stem cell transplantation (alloHSCT) recipients at our hospital. We retrospectively analyzed the consequences of a positive blood qPCR in the management of Toxoplasma infection (TI) and disease (TD).From 2011 to 2020, 52 (4.

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HaloTag-based reporters for sparse labeling and cell tracking.

Fly (Austin)

December 2022

4D Unit, Developmental and Stem Cell Biology Dept, Institut Pasteur, CNRS UMR3738, 75015 Paris, France.

Multiscale analysis of morphogenesis requires to follow and measure in real-time the behaviour of large numbers of individual cells over long period of time. Despite recent progress, the large-scale automated tracking of cells in developing embryos and tissues remains a challenge. Here we describe a genetic tool for the random and sparse labelling of individual cells in developing tissues.

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Purpose: In this study, we describe the phenotype and genotype of the largest cohort of patients with Joubert syndrome (JS) carrying pathogenic variants on one of the most frequent causative genes, .

Methods: We selected 53 patients with pathogenic variants on , compiled and analysed their clinical, neuroimaging and genetic information and compared it to previous literature.

Results: Developmental delay (motor and language) was nearly constant but patients had normal intellectual efficiency in 74% of cases (20/27 patients) and 68% followed mainstream schooling despite learning difficulties.

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Background: infections remain difficult to manage in both cystic fibrosis (CF) and non-CF patients and reported clinical outcomes are largely unsatisfactory. Clinical trial data are limited and no approved therapies are currently available for the management of lung diseases. As an alternative, cohort studies may provide insightful information into the management of pulmonary disease.

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This phase 1b trial (NCT02670044) evaluated venetoclax-idasanutlin in patients with relapsed/refractory (R/R) acute myeloid leukemia (AML) ineligible for cytotoxic chemotherapy. Two-dimensional dose escalation (DE, n = 50) was performed for venetoclax daily with idasanutlin on days 1 to 5 in 28-day cycles, followed by dosing schedule optimization (n = 6) to evaluate reduced venetoclax schedules (21-/14-day dosing). Common adverse events (occurring in ≥40% of patients) included diarrhea (87.

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Introduction: Cushing's disease is a state of chronic and excessive cortisol levels caused by a pituitary adenoma.

Research Question: CD is a complex entity and often entails difficulties in its diagnosis and management. For that reason, there are still controversial points to that respect.

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[Pulmonary phenotypes of inborn errors of metabolism].

Rev Mal Respir

November 2022

Service de médecine interne, Groupe Hospitalier Diaconesses-Croix-Saint-Simon, site Avron, 75020 Paris, France; Centre de Référence Maladies Lysosomales, Paris, France.

Inborn metabolic diseases or inborn errors of metabolism comprise a large number of rare and heterogeneous genetic diseases categorized in several subgroups depending on their pathophysiologic mechanisms. In this review, we focus on different metabolic diseases with respiratory symptoms in adults: lysosomal glycosphingolipidoses such as acid sphingomyelinase deficiency (Niemann-Pick types A and B disease), Gaucher, Fabry, Pompe diseases and mucopolysaccharidoses in general. We also address classical homocystinuria, which is a monogenic vascular disease, Hermansky-Pudlak syndrome, which is associated with disorders in the lysosomal-related-organelles, and lysinuric protein intolerance, which is due to an amino-acid transporter defect.

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