4,210 results match your criteria: "France and Universit´e de Rennes 1[Affiliation]"

Our study explores the complex dynamics of the integrated stress response (ISR) axis, highlighting PIM2 kinase's critical role and its interaction with the BCL2 protein family, uncovering key mechanisms of cell survival and tumor progression. Elevated PIM2 expression, a marker of various cancers, often correlates with disease aggressiveness. Using a model of normal and malignant plasma cells, we show that inhibiting PIM2 kinase inhibits phosphorylated BAD production and activates ISR-mediated NOXA expression.

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[A national survey from the French Society of Pathology on research and application of artificial intelligence in pathology].

Ann Pathol

December 2024

Service d'anatomie et cytologie pathologique, hôpital Pontchaillou, CHU de Rennes, université de Rennes 1, 2, rue Henri-Le-Guilloux, 35033 Rennes cedex, France; Équipe IMPACT, laboratoire traitement du signal et de l'image (LTSI) Inserm, hôpital Pontchaillou, CHU de Rennes, université Rennes 1, 35033 Rennes, France.

The 2030 French Innovation Healthcare national plan defined "Digital Healthcare" as one of its priority. The deployment of digital pathology and artificial intelligence fits perfectly into this framework. Therefore we evaluated the pathologist's interest in those fields by conducting an online survey among members of the French Society of Pathology, mainly composed of senior pathologists and trainees (n=2301).

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Background: Assessing farm animals' welfare is crucial, yet practical physiological tools are still lacking. In this study, we tested whether the peripheral blood mononuclear cell (PBMC) transcriptome shows variations in association with sows' welfare. To do this, we compared animals whose welfare states were assumed to differ due to their lives in more or less enriched environments and to their different dominance statuses.

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Overt and hidden polymorphism in the binary system involving the Z- and E- isomers of broparestrol.

Int J Pharm

January 2025

Laboratoire SMS, UR 3233, Université de Rouen Normandie, Normandie Université, F76000, Rouen, France. Electronic address:

Broparestrol has been used as a drug to treat acne in the form of a mixture of its two stereoisomers. Although it has been withdrawn from the market, the binary system is rich in polymorphism and understanding the phase behaviour of the binary system involving the E- and Z-isomers is challenging. Physical mixtures do not immediately give rise to equilibrium phase behaviour, whereas recrystallization often leads to metastable phases and the appearance of stable phases can take years.

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Despite the challenges associated with periprocedural imaging, transcatheter tricuspid valve interventions have shown important impact on outcomes. A comprehensive understanding of the anatomy of the right heart and surrounding structures is crucial. One way to optimize these interventions is by identifying the optimal fluoroscopic viewing angles along the S-curve of the tricuspid valve.

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Biogeography of a Global Plant Invader: From the Evolutionary History to Future Distributions.

Glob Chang Biol

December 2024

Ministry of Education Key Laboratory of Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, Shanghai, China.

Biological invasions pose a global challenge, affecting ecosystems worldwide and human societies. Knowledge of the evolutionary history of invasive species is critical to understanding their current invasion success and projecting their future spread. However, to date, few studies have addressed the evolutionary history and potential future spread of invaders simultaneously.

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Background: Autoimmune pulmonary alveolar proteinosis (aPAP) is a rare disease that may progress towards pulmonary fibrosis. Data about fibrosis prevalence and risk factors are lacking.

Methods: In this retrospective multicentre nationwide cohort, we included patients newly diagnosed with aPAP between 2008 and 2018 in France and Belgium.

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Alternative splicing is an FXRα loss-of-function mechanism and impacts energy metabolism in hepatocarcinoma cells.

J Biol Chem

November 2024

Université Clermont Auvergne, CNRS UMR6293, INSERM U1103, iGReD Team-Volle, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, Clermont-Ferrand, France. Electronic address:

Farnesoid X receptor α (FXRα, NR1H4) is a bile acid-activated nuclear receptor that regulates the expression of glycolytic and lipogenic target genes by interacting with the 9-cis-retinoic acid receptor α (RXRα, NR2B1). Along with cofactors, the FXRα proteins reported thus far in humans and rodents have been observed to regulate both isoform (α1-4)- and tissue-specific gene expression profiles to integrate energy balance and metabolism. Here, we studied the biological functions of an FXRα naturally occurring spliced exon 5 isoform (FXRαse5) lacking the second zinc-binding module of the DNA-binding domain.

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Background: It is unknown which maintenance therapy is the most effective option for patients admitted for an acute severe ulcerative colitis (ASUC) episode responding to intravenous steroids.

Methods: We conducted a multicentre, parallel-group, open-label randomised controlled trial among 23 French centres in thiopurine and biologics-naïve adults admitted for ASUC responding to intravenous steroids. Eligible patients were randomly assigned to receive infliximab (IFX) and azathioprine (AZA) with a 7-day steroid tapering scheme (IFX+AZA arm) or AZA and conventional standardised steroid tapering regimen (AZA arm).

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Objective: Transcranial alternating current stimulation (tACS) enables non-invasive modulation of brain activity, holding promise for clinical and research applications. Yet, it remains unclear how the stimulation frequency differentially impacts various neuron types. Here, we aimed to quantify the frequency-dependent behavior of key neocortical cell types.

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Context: Poor medication management can lead to adverse outcomes for transplant patients, including acute rejection and graft loss. In recent years, mobile applications have been proposed as innovative tools to improve patient treatment management.

Objective: This review aimed to systematically evaluate the available research evidence on the relationship between mobile applications and treatment management in transplant patients.

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Article Synopsis
  • * Researchers collected blood or spleen samples from 220 badgers in nine countries between 2017 and 2021 and used PCR analysis and sequencing to identify various VBPs present in the animals.
  • * Key findings revealed the presence of several pathogens, including different types of Babesia, Trypanosoma pestanai, and Mycoplasma, while Rickettsia, Bartonella, and filarioid nematodes were not detected.
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[Access to oral health care for patients attending a medical-psychological center].

Soins Psychiatr

November 2024

UFR Odontologie, Université de Rennes 1, Campus Villejean, 2 avenue du Professeur-Léon-Bernard, 35043 Rennes, France.

People with mental health problems have a worse oral health condition than the general population. As part of a qualitative study using semi-directive interviews aimed at analyzing the perceptions of professionals working in medical-psychological centers regarding the difficulties encountered by their patients in accessing dental care, three obstacles were identified: factors intrinsic to the patient, background in prevention and the organization of the healthcare system.

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Prediction of Late Proximal Endoleak Risk after EVAR by Preoperative Estimation of Endograft/Aortic Neck Apposition Surface.

Ann Vasc Surg

January 2025

CHU Rennes, Service de Chirurgie Cardiothoracique et Vasculaire, Rennes, France; INSERM, Rennes, France; Université de Rennes 1, Laboratoire de Traitement du Signal et de l'Image (LTSI), Rennes, France. Electronic address:

Background: The aim of this study was to evaluate a new measurement tool for the preoperative computed tomography (CT) scan to estimate the endograft apposition surface on the proximal aortic neck of the aneurysm that would predict the risk of late type IA endoleak (EL1A).

Methods: From databases of 4 high-volume centers between 2004 and 2020, all patients who underwent Endovascular Aneuruysm Repair (EVAR) with the possibility of analyzing pre and post-EVAR scans and who presented late (>2 years) EL1A in follow-up were included retrospectively (EL1A group). A control group of randomly selected EL1A-free patients were included (control group) and followed-up beyond 4 years.

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Background And Aims: There is ongoing debate about whether offspring perform best next to phylogenetically distantly related adult neighbours (due to the scarcity of enemies and competitors) or next to closely related adults (due to the abundance of mutualists). Here we hypothesise that relatedness of adult neighbours affects which traits confer performance rather than performance itself.

Methods: We studied seed removal, seed germination and sapling growth in Sessile Oaks (Quercus petraea and hybrids), and how they depend on size, shape and other traits, under both closely and distantly related canopies, manipulating offspring-density, presence of insects, and fungi, and spatial proximity to oaks.

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Identification of FGFR4 as a regulator of myofibroblast differentiation in pulmonary fibrosis.

Am J Physiol Lung Cell Mol Physiol

December 2024

Université Paris Cité, Institut National de la Santé et de la Recherche Médicale, UMR1152, FHU APOLLO, Labex INFLAMEX, Faculté de médecine Xavier Bichat, Paris, France.

Idiopathic pulmonary fibrosis (IPF) is a devastating lung disease with limited therapeutic options. Fibroblast growth factor receptor-4 (FGFR4) is a known receptor for several paracrine fibroblast growth factors (FGFs). FGFR4 is also the main receptor for FGF19, an endocrine FGF that was demonstrated by our group to have antifibrotic properties in the lung.

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Article Synopsis
  • Percutaneous treatment for structural heart disease is advancing quickly, with the EAPCI's Core Curriculum defining crucial competencies for new interventional cardiologists specializing in this area.
  • These specialists, trained in interventional cardiology, manage adult patients and perform various procedures, requiring skills in advanced imaging and planning software, with a focus on the aortic, mitral, and tricuspid valves.
  • Comprehensive training in all three areas typically takes at least 18 months, supporting consistent education across Europe, which will eventually influence certifications and patient safety measures.
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Article Synopsis
  • Researchers created tetranuclear clusters of lanthanide (Ln) elements by combining specific salts with a unique phosphinic acid and pivalic acid.* -
  • X-ray studies confirmed the structure of these complexes, which included erbium (Er), dysprosium (Dy), and terbium (Tb), showing distinct magnetic properties.* -
  • Direct-current studies indicated ferromagnetic interactions between Dy and Tb, while Er exhibited antiferromagnetic behavior; both exhibited characteristics of single-molecule magnets.*
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Determinants of influenza and COVID vaccine uptake in healthcare workers: A cross-sectional survey during the post-pandemic era in a network of academic hospitals in France.

Vaccine

December 2024

Centre régional de Pathologies professionnelles et environnementales Bretagne, Rennes, France; Service de Maladies Infectieuses et Réanimation Médicale, CHU de Rennes, Rennes, France; IRSET, Université de Rennes 1, Rennes, France. Electronic address:

Objectives: Although influenza and COVID vaccines are recommended for healthcare workers (HCWs), vaccine coverage is sub-optimal for influenza in this population, and the situation did not improve during the COVID pandemic. We aimed to estimate influenza and COVID vaccine coverage among HCWs and their determinants after the COVID pandemic.

Methods: We performed a cross-sectional study between May and July 2023 among HCWs to estimate influenza and COVID vaccination coverage during the 2022-2023 season, and its determinants, using a web-based anonymous questionnaire.

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Article Synopsis
  • - The study examines parental coordination in Dovekies (Little Auks) throughout their breeding season, emphasizing the shift from traditional views of parental care as influenced mostly by sexual conflict to understanding it as collaboration between males and females.
  • - Researchers utilized video recordings over two breeding seasons to analyze how parental coordination varies during different stages, finding that coordination is high during incubation but decreases during chick rearing, with variations between years.
  • - Results indicate that parental coordination is influenced by the needs of the brood and is not a fixed behavior, with a significant relationship observed between the coordination levels during incubation and chick rearing phases.
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Article Synopsis
  • Cardiogenic shock (CS) is a major cause of in-hospital deaths after acute coronary syndromes (ACS), with nearly 50% mortality, highlighting the need for personalized risk prediction.
  • The ORBI score, designed to predict in-hospital CS in ACS patients undergoing percutaneous coronary intervention (PCI), has shown varying effectiveness between genders, necessitating improved risk assessment methods.
  • A new score called SEX-SHOCK was developed, incorporating key health indicators, and demonstrated better predictive ability for both sexes compared to the ORBI score, thus advancing risk prediction strategies in ACS management.
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Factors associated with cancer treatment resumption after ICU stay in patients with solid tumors.

Ann Intensive Care

August 2024

CHU Rennes, Service de Maladies Infectieuses et Réanimation Médicale, Hôpital Pontchaillou, Université de Rennes 1, 2, rue Henri Le Guilloux, Rennes cedex 9, 35033, France.

Background: Post-intensive care syndrome could be responsible for inability to receive proper cancer treatment after ICU stay in patients with solid tumors (ST). Our purpose was to determine the factors associated with cancer treatment resumption and the impact of cancer treatment on the outcome of patients with ST after ICU stay.

Methods: We conducted a retrospective study including all patients with ST admitted to the ICU between 2014 and 2019 in a French University-affiliated Hospital.

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The most common and efficient iron supply to prevent neonatal anaemia in piglets is the injection of iron dextran or gleptoferron. This treatment is problematic in organic farms because organic specifications strictly limit the use of chemically synthesised allopathic drugs. Based on the observation that piglets raised outdoors rarely develop anaemia, we hypothesised that piglets satisfy their iron needs by ingesting soil from their environment.

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Background And Aims: Severe tricuspid regurgitation is associated with increased mortality rates, but benefit of its correction and ideal timing are not clearly determined. This study aimed to identify patient subsets who might benefit from the surgery.

Methods: In TRIGISTRY, an international cohort study of consecutive patients with severe isolated functional tricuspid regurgitation (33 centres, 10 countries), survival rates up to 10 years were compared between patients who underwent isolated tricuspid valve surgery (repair or replacement) and those conservatively managed, overall and according to TRI-SCORE category (low: ≤3, intermediate: 4-5, and high: ≥6).

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Article Synopsis
  • The percutaneous treatment of structural heart disease (SHD) is advancing quickly, with the EAPCI's Core Curriculum (CC) defining the necessary competencies for newly trained interventional cardiologists (IC).
  • SHD interventional cardiologists manage adult patients throughout the entire treatment process, requiring skills in advanced imaging and planning software, as well as proficiency in procedures related to the aortic, mitral, and tricuspid heart valves.
  • Completing specialized SHD training typically takes at least 18 months, though it can be shortened to 1 year for focused training on specific areas, with the goal of promoting standardized, high-quality training across Europe for better patient care and future certifications.
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