58,993 results match your criteria: "Centre-Université de Paris[Affiliation]"

Metastable state preceding shear zone instability: Implications for earthquake-accelerated landslides and dynamic triggering.

Proc Natl Acad Sci U S A

January 2025

Institut Langevin, École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris, Université Paris Sciences & Lettres, CNRS, Paris 7587, France.

Understanding the dynamic response of granular shear zones under cyclic loading is fundamental to elucidating the mechanisms triggering earthquake-induced landslides, with implications for broader fields such as seismology and granular physics. Existing prediction methods struggle to accurately predict many experimental and in situ landslide observations due to inadequate consideration of the underlying physical mechanisms. The mechanisms that influence landslide dynamic triggering, a transition from static (or extremely slow creeping) to rapid runout, remain elusive.

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Despite recent advances in cancer treatment, there is still a need for novel compounds with antineoplastic activity. Among 11 biphenyl-based organogold(III) -heterocyclic carbene (NHC) (BGC) complexes of general formula [(C^C)Au(NHC-pyr)X], where (C^C) = 4,4'-ditertbutylbiphenyl, X = Cl or phenylacetylide, and (NHC-pyr) is a pyridyl-substituted NHC ligand, the complex bearing a 4-CF-pyridyl substituent and a chloride ligand showed promising antineoplastic activity on the triple negative breast cancer cell line. was able to induce cell apoptosis but had no effect on the cell cycle.

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Human recombination-activating gene (RAG) deficiency can manifest with distinct clinical and immunological phenotypes. By applying a multiomics approach to a large group of -mutated patients, we aimed at characterizing the immunopathology associated with each phenotype. Although defective T and B cell development is common to all phenotypes, patients with hypomorphic variants can generate T and B cells with signatures of immune dysregulation and produce autoantibodies to a broad range of self-antigens, including type I interferons.

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Background: While invasive fusariosis and lomentosporiosis are known to be associated with fungemia, overall data on mold-related fungemia are limited, hampering early management. This study aimed to describe the epidemiology of mold-positive blood cultures.

Methods: Epidemiological and clinical data on mold-positive blood cultures from 2012 to 2022 were obtained from the RESSIF database.

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Lipid droplets (LDs) are the major sites of lipid and energy homeostasis. However, few LD biogenesis proteins have been identified. Using model microalga , we show that ABHD1, an α/β-hydrolase domain-containing protein, is localized to the LD surface and stimulates LD formation through two actions: one enzymatic and one structural.

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BackgroundEarly detection and characterisation of SARS-CoV-2 variants have been and continue to be essential for assessing their public health impact. In August 2023, Santé publique France implemented enhanced surveillance for BA.2.

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Background: Familial Mediterranean fever (FMF) is the most common monogenic autoinflammatory disease, associated with MEFV mutations. FMF patients can experience liver involvement, potentially leading to cirrhosis.

Objectives: This study aimed to evaluate liver involvement in FMF patients at a French tertiary centre for adult FMF.

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Improving Examination Skills in Neuromuscular Disorders Through an Educational Video.

Clin Teach

February 2025

AP-HP, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, DMU Neurosciences, Service de Neurologie 2-Mazarin, Sorbonne Université, Paris, France.

Background: The acquisition of practical skills is a key objective of medical education. Improving knowledge and skills is essential for early diagnosis of patients suffering from neuromuscular (NM) diseases.

Approach: Multimedia tools have proved to be useful and effective for learning clinical skills.

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Trends in the epidemiology of intravascular device-associated bacteremia among French hematology patients: insights from the SPIADI prospective multicenter study, 2020-2024.

Ann Hematol

January 2025

Mission Nationale Surveillance et Prévention des Infections Associées aux Dispositifs Invasifs (SPIADI), Centre d'Appui pour la Prévention des Infections Associées aux Soins en région Centre val de Loire, Centre Hospitalier Régional Universitaire, Hôpital Bretonneau, Tours, France.

Hematology patients require central venous catheters for cancer treatment and nutrition, which increases their risk of intravascular device-associated bacteremia. In the absence of recent data, we investigated intravascular device-associated bacteremia in this specific context. A three-month surveillance was conducted annually in 27 hematology wards, using a protocol derived from the HAI-Net ICU ECDC protocol (2020-2024).

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4P medicine (personalized, preventive, predictive, and participatory) is experiencing a remarkable rise, and pharmacogenetics is an essential part of it. However, several obstacles are hindering its deployment. This round table brought together a group of experts to take stock of the situation, reflecting on ways to facilitate the prescription of these tests and the dissemination of the results on a national scale.

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Introduction: Metformin is a first line treatment for type II diabetes. Cases of metformin-associated lactic acidosis are regularly reported. A direct causal link between metformin overdose and lactic acidosis is not clearly established.

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Study Objectives: It is unknown whether loudness of snoring or hypoxic burden are related to higher hyperactivity scores in habitually snoring children and whether this effect is impacted by the severity of sleep-disordered breathing (SDB). This study investigates the prevalence of hyperactivity in children with habitual snoring and the independent effects of loudness of snoring, as reported by the parents, hypoxic burden and obstructive sleep apnea syndrome's severity (OSAS) on hyperactivity, as measured by the Conners' Parent Rating Scale-Hyperactivity Index (CPRS-HI).

Methods: Children with habitual snoring aged 3-18 years were recruited for an overnight polysomnography reporting apnea-hypopnea index (AHI) and hypoxic burden, acoustic rhinometry, clinical examination and parental questionnaires assessing snoring loudness and CPRS-HI.

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Efficacy of a vein visualisation device for facilitating peripheral venous line placement in adult patients with sickle cell disease: A randomised clinical trial.

Int J Nurs Stud

December 2024

Service de Médecine Interne, Centre National de Référence des Syndromes Drépanocytaires Majeurs de l'Adulte, AP-HP, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, 20 rue Leblanc, F-75908 Paris cedex 15, France; Service d'aval des urgences, hopital Henri-Mondor Assistance Publique-Hôpitaux de Paris, 1 rue Gustave Eiffeil, 94000 Créteil, France; Université Paris Cité, Paris, France. Electronic address:

Background: Intravenous (IV) access is often required for the treatment of vaso-occlusive crises in patients with sickle cell disease, but can be particularly challenging due to recurrent venous damage. The AccuVein® device, uses near-infrared light technology to visualise veins for easier venepuncture.

Methods: A randomised, controlled trial of the efficacy of the AccuVeinAV400® device in the replacement of peripheral venous lines during a vaso-occlusive crisis was conducted at two centres in France.

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Context: Congenital hypothyroidism (CH) is the most common neonatal endocrine disorder and is chiefly caused by thyroid dysgenesis (CHTD). The inheritance mode of the disease remains complex.

Objectives: Gain insight into the inheritance mode of CHTD.

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Background: Chronic kidney disease (CKD) is associated with higher risk of myocardial infarction and anemia. Among patients with anemia and CKD who experience myocardial infarction, it remains uncertain if a liberal red blood cell transfusion threshold strategy (hemoglobin cutoff [Hgb] < 10 g/dL) is superior to a restrictive transfusion threshold (Hgb 7-8 g/dL) strategy.

Methods: Among the 3,504 patients enrolled in the Myocardial Ischemia and Transfusion (MINT) trial with non-missing creatinine, we compared baseline characteristics and 30-day and 6-month outcomes of patients without CKD (N = 1279), CKD with eGFR 30-60 mL/min/1.

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Autoimmune Tubulopathies.

J Am Soc Nephrol

January 2025

Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université Paris Cité, F-75006 Paris, France.

The renal tubule and collecting duct express a large number of proteins, all having putative immunoreactive motives. Therefore, all can be the target of pathogenic autoantibodies. However, autoimmune tubulopathies seem to be rare and we hypothesize that they are underdiagnosed.

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Microsporidiosis in Patients with Autoimmune Diseases Undergoing Monoclonal Antibody Associated Therapy.

Mycopathologia

January 2025

Sorbonne Université, Inserm U1135, Centre d'Immunologie et de Maladies Infectieuses (Cimi-Paris), AP-HP, Hôpital Saint-Antoine, Service de Parasitologie-Mycologie, 184 rue Faubourg Saint Antoine, 175012, Paris, France.

We present Enterocytozoon bieneusi infection in four patients with autoimmune diseases undergoing prolonged monoclonal antibody therapies. Two patients suffered from inflammatory bowel disease and received anti-TNF therapies, whereas two other patients suffered from systemic lupus erythematosus with renal involvement and received anti-CD20 or anti-BLyS protein therapies. Three out of four patients consulted for diarrhea with abdominal pain without intestinal inflammation or bleeding at the time of sampling.

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Paediatric renal tumours: an update on challenges and recent developments.

Virchows Arch

January 2025

Histology Laboratory, Children's Health Ireland, Dublin, Ireland.

Paediatric renal tumours include a broad range of neoplasms which largely differ, but also overlap to a smaller extent, with adult kidney cancer. These include the embryonal tumour nephroblastoma, which accounts for the majority of cases of kidney cancer in the first decade of life and, despite boasting a cure in ~ 90% cases, still presents clinical challenges in a small proportion of cases. A variety of less common mesenchymal tumours, including the mostly indolent congenital mesoblastic nephroma, clear cell sarcoma of kidney which continues to be associated with poor outcomes for higher stage disease, and the typically lethal malignant rhabdoid tumour, form the bulk of the remaining presentations in the first decade.

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Major role of dolutegravir in the emergence of the S147G integrase resistance mutation.

J Antimicrob Chemother

December 2024

Department of Virology, Sorbonne Université, INSERM, UMR-S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, 83 Boulevard de l'Hôpital 39, F-75013 Paris, France.

Background: The S147G mutation is associated with high-level resistance to the integrase strand transfer inhibitor (INSTI) elvitegravir. In several poorly documented cases, it was also selected in patients on dolutegravir. Given the widespread use of dolutegravir, further studies of S147G are required.

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Current approach to diagnosis and management of low-phospholipid associated cholelithiasis syndrome.

Curr Opin Gastroenterol

January 2025

Reference Center for Inflammatory Biliary Diseases and Autoimmune Hepatitis, European Reference Network on Hepatological Diseases (ERN Rare-Liver), Saint-Antoine Hospital, Assistance Publique - Hôpitaux de Paris; Sorbonne University, INSERM, Saint-Antoine Research Center (CRSA).

Purpose Of Review: Low phospholipid-associated cholelithiasis (LPAC) syndrome is a rare genetic form of intrahepatic cholesterol lithiasis, affecting mainly young adults. This review describes the recent advances in genetic and clinical characterization, diagnosis and management of LPAC syndrome.

Recent Findings: Recent publications report data from several retrospective cohorts.

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A Riemannian multimodal representation to classify parkinsonism-related patterns from noninvasive observations of gait and eye movements.

Biomed Eng Lett

January 2025

Biomedical Imaging, Vision and Learning Laboratory(BivL2ab), Universidad Industrial de Santander (UIS), Bucaramanga, 680002 Santander Colombia.

Parkinson's disease is a neurodegenerative disorder principally manifested as motor disabilities. In clinical practice, diagnostic rating scales are available for broadly measuring, classifying, and characterizing the disease progression. Nonetheless, these scales depend on the specialist's expertise, introducing a high degree of subjectivity.

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In this contribution, we examine the interplay between target definition, data distribution, featurization approaches, and model architectures on graph-based deep learning models for thermodynamic property prediction. Through consideration of five curated data sets, exhibiting diversity in elemental composition, multiplicity, charge state, and size, we examine the impact of each of these factors on model accuracy. We observe that target definition, i.

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T cell malignancies after CAR T cell therapy in the DESCAR-T registry.

Nat Med

January 2025

Department of Hematology, University Hospital of Rennes, UMR U1236, INSERM, University of Rennes, French Blood Establishment, Rennes, France.

The risk of T cell malignancies after chimeric antigen receptor (CAR) T cell therapy is a concern, although the true incidence remains unclear. Here we analyzed the DESCAR-T registry database, encompassing all pediatric and adult patients with hematologic malignancies who received CAR T cell therapy in France since 1 July 2018. Of the 3,066 patients included (2,536 B cell lymphoma, 162 B cell acute lymphoblastic leukemia (ALL) and 368 multiple myeloma), 1,680 (54.

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Following our previous experience with cardiac xenotransplantation of a genetically modified porcine heart into a live human, we sought to achieve improved results by selecting a healthier recipient and through more sensitive donor screening for potential zoonotic pathogens. Here we transplanted a 10-gene-edited pig heart into a 58-year-old man with progressive, debilitating inotrope-dependent heart failure due to ischemic cardiomyopathy who was not a candidate for standard advanced heart failure therapies. He was maintained on a costimulation (anti-CD40L, Tegoprubart) blockade-based immunomodulatory regimen.

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