1,966 results match your criteria: "INSERM E0218-Université de Caen[Affiliation]"

Background: Radiotherapy as a complement or an alternative to neurosurgery has a central role in the treatment of skull base grade I-II meningiomas. Radiotherapy techniques have improved considerably over the last two decades, becoming more effective and sparing more and more the healthy tissue surrounding the tumour. Currently, hypo-fractionated stereotactic radiotherapy (SRT) for small tumours and normo-fractionated intensity-modulated radiotherapy (IMRT) or proton-therapy (PT) for larger tumours are the most widely used techniques.

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Introduction: Surgical site infections (SSIs) are the second leading cause of healthcare-associated infections in Europe with the highest rates being reported in colorectal surgery (ranging from 9% to 30%). Surgical antibiotic prophylaxis (SAP) is one of the most efficient measures for SSI prevention and should be started before surgical incision. Cefoxitin is an antibiotic widely used as SAP for colorectal surgery, but its continuous administration is currently the subject of debate due to its potential pharmacokinetic advantages.

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Background: While Alcohol Use Disorder (AUD) is frequently associated with impulsivity, its structural brain substrates are still poorly defined. The triadic model of addiction postulates that impulsive behavior is regulated by an amygdalo-striatal impulsive subcomponent, a prefrontal and cerebellar reflective subcomponent, and an insular regulatory subcomponent. The objective of this study was thus to examine the relationships between self-evaluated impulsivity and structural brain abnormalities in patients with severe AUD (sAUD) using the triadic model as a theoretical framework.

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Background And Objectives: This is a protocol for a living systematic review and meta-analysis.This review will assess the effects of state-of-the-art exercise interventions designed to promote functional mobility. Therefore, after identifying all potential interventions, we will use the F.

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Combination of clinical frailty score and myostatin concentrations as mortality predictor in hemodialysis patients.

J Ren Nutr

January 2025

Departments of Nephrology - Dialysis - Transplantation, University of Liege, CHU de Liège, Liège, Belgium; Nephrology, Dialysis, Apheresis Unit, Centre Hospitalier Universitaire Caremeau, Nimes, University of Montpellier, Montpellier, France.

Background And Aims: Frailty is common among hemodialysis (HD) patients. Its assessment is usually based on clinical criteria. In the present work, we evaluated the interest of combining clinical frailty score and biomarkers to predict mortality of chronic HD patients.

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Introduction: The generalizability of neuroimaging and cognitive biomarkers in their sensitivity to detect preclinical Alzheimer's disease (AD) and power to predict progression in large, multisite cohorts remains unclear.

Method: Longitudinal demographics, T1-weighted magnetic resonance imaging (MRI), and cognitive scores of 3036 cognitively unimpaired (CU) older adults (amyloid beta [Aβ]-negative/positive [A-/A+]: 1270/1558) were included. Cross-sectional and longitudinal cognition and medial temporal lobe (MTL) structural measures were extracted.

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Automated scoring to assess RAD51-mediated homologous recombination in ovarian patient-derived tumor organoids.

Lab Invest

January 2025

Université de Caen Normandie, INSERM U1086 ANTICIPE, Caen, France; UNICANCER, Comprehensive Cancer Center François Baclesse, Caen, France; Université de Caen Normandie, US PLATON- ORGAPRED core facility, Caen, France; Université de Caen Normandie, US PLATON, UNICANCER, Comprehensive Cancer Center François Baclesse- Biological Resource Center 'OvaRessources', Caen, France. Electronic address:

PARP inhibitors (PARPi) have been shown to improve progression-free survival, particularly in homologous recombination deficient (HRD) ovarian cancers. Identifying patients eligible to PARPi is currently based on next-generation sequencing (NGS), but the persistence of genomic scars in tumors after restoration of HR or epigenetic changes can be a limitation. Functional assays could thus be used to improve this profiling and faithfully identify HRD tumors.

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Importance: The safety profile of a rechallenge with BRAF inhibitors (BRAFi) or a combination of BRAF and MEK inhibitors (MEKi) following an adverse drug reaction (ADR) remains largely unexplored.

Objective: To identify the reported recurrence rate of the same ADR after a BRAFi±MEKi targeted therapy (TT) rechallenge in patients with cancer and to identify factors associated with recurrence.

Design, Setting, And Participants: In this observational, pharmacovigilance study, ADR reports were sourced from VigiBase, the World Health Organization database.

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Formal guidelines from an expert panel: intensive care unit medical staffing, organisation and working hours to improve quality of life at work in France.

Ann Intensive Care

January 2025

Service de Réanimation Médicale GHRMSA, Hôpital Emile Muller 20 Av. du Dr Laennec, 68100, Mulhouse, France.

Background: Intensive care units (ICU) are characterized by high medical assistance costs and great complexity. Recommendations to determine the needs of medical staff are scarce, generating appreciable variability. The French Intensive Care Society (FICS) and the French National Council of Intensive Care Medicine (CNP MIR, Conseil National Professionel de Médecine Intensive Réanimation) have established a technical committee of experts, the purposes of which were to draft recommendations regarding staffing needs in ICUs and to propose optimal organisation of work hours, a key objective being improved workplace quality of life.

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Among the factors, such as emotions, that distort time perception, vestibular stimulation causes a contraction in subjective time. Unlike emotions, the intensity of vestibular stimulation can be easily and precisely modified, making it possible to study the quantitative relationship between stimulation and its effect on time perception. We hypothesized that the contraction of subjective time would increase with the vestibular stimulation magnitude.

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Curing Alzheimer's disease remains hampered by an incomplete understanding of its pathophysiology and progression. Exploring dysfunction in medial temporal lobe networks, particularly the anterior-temporal (AT) and posterior-medial (PM) systems, may provide key insights, as these networks exhibit functional connectivity alterations along the entire Alzheimer's continuum, potentially influencing disease propagation. However, the specific changes in each network and their clinical relevance across stages are not yet fully understood.

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UBE2N protein belongs to the UE2s family and plays a crucial role in DNA repair, making it an exciting target for the development of innovative anticancer therapies. With the aim of discovering UBE2N inhibitors (UBE2Ni), this perspective seeks to review and provide elements to guide the design of new compounds. We propose a chemoinformatic structural analysis of the protein and its areas of interaction with its different partners.

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Background: Therapeutic outcomes for patients infected by genetically divergent HIV-1/O are not well-known due to scarce data and the lack of an appropriate comparison with patients infected by pandemic HIV-1/M. We aimed to compare the immunological and virological response to cART between HIV-1/O and HIV-1/M patients followed in France.

Methods: All naïve HIV-1/O subjects initiating cART in France in ANRS-ORIVAO study were compared to naïve HIV-1/M subjects initiating cART in ANRS-COPANA cohort.

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Usefulness of Cerebrospinal Fluid Alzheimer's disease biomarkers in older patients: Evidence from a national multicenter prospective study.

J Prev Alzheimers Dis

January 2025

Geriatrics Department, Fernand Widal Lariboisière University Hospital, GHU APHP.Nord, Paris, France; Paris-Cité University, Inserm U1144, Paris, France; Paris-Cité University, Inserm U1153, Paris, France.

Background: The use of cerebrospinal (CSF) biomarkers in the diagnosis of Alzheimer's disease (AD) has been gaining interest in clinical practice. Although their usefulness has been demonstrated, their potential value in older patients remains debated.

Objectives: To assess whether knowledge of the results of CSF AD biomarkers was associated with the same gain in diagnostic confidence in older adults > 80 than in younger patients.

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A lipidated peptide derived from the C-terminal tail of the vasopressin 2 receptor shows promise as a new β-arrestin inhibitor.

Pharmacol Res

January 2025

Department of Pharmacology-Physiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada; RECITAL International Partnership Lab, Université de Caen-Normandie, Caen, France & Université de Sherbrooke, Sherbrooke, QC, Canada. Electronic address:

β-arrestins play pivotal roles in seven transmembrane receptor (7TMR) signalling and trafficking. To study their functional role in regulating specific receptor systems, current research relies mainly on genetic tools, as few pharmacological options are available. To address this issue, we designed and synthesised a novel lipidated phosphomimetic peptide inhibitor targeting β-arrestins, called ARIP, which was developed based on the C-terminal tail (A343-S371) of the vasopressin V2 receptor.

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Real-world effectiveness and safety of bulevirtide monotherapy for up to 96 weeks in patients with HDV-related cirrhosis.

J Hepatol

January 2025

Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; CRC "A. M. and A. Migliavacca" Center for Liver Disease, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy; D-SOLVE consortium, an EU Horizon Europe funded project (No 101057917). Electronic address:

Background And Aims: Bulevirtide (BLV) 2 mg/day is EMA approved for treatment of compensated chronic hepatitis due to Delta virus (HDV) infection, however real-life data in large cohorts of patients with cirrhosis are lacking.

Methods: Consecutive HDV-infected patients with cirrhosis starting BLV 2 mg/day since September 2019 were included in a European retrospective multicenter real-life study (SAVE-D). Patient characteristics before and during BLV treatment were collected.

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Plasticity of human resilience mechanisms.

Sci Adv

January 2025

Normandie Univ, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, GIP Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000 Caen, France.

The hippocampus's vulnerability to trauma-induced stress can lead to pathophysiological disturbances that precipitate the development of posttraumatic stress disorder (PTSD). The mechanisms of resilience that foster remission and mitigate the adverse effects of stress remain unknown. We analyzed the evolution of hippocampal morphology between 2016/2017 and 2018/2019, as well as the memory control mechanisms crucial for trauma resilience.

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A New Three-Hit Mouse Model of Neurodevelopmental Disorder with Cognitive Impairments and Persistent Sociability Deficits.

Brain Sci

December 2024

Department of Health, Normandie Université, UNICAEN (Université de Caen Normandie), INSERM (Institut National de la Santé et de la Recherche Médicale), UMR (Unité Mixte de Recherche) 1075 COMETE, Campus 5, CYCERON, FHU (Fédération Hospitalo-Universitaire) A2M2P, CHU (Centre Hospitalo-Universitaire) Caen, 14000 Caen, France.

Background/objectives: Cognitive deficits and negative symptoms associated with schizophrenia are poorly managed by current antipsychotics. In order to develop effective treatments, refining animal models of neurodevelopmental disorders is essential.

Methods: To address their multifactorial etiology, we developed a new three-hit mouse model based on the hypoglutamatergic hypothesis of the pathology combined with early stress, offering strong construct validity.

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Depressive symptoms in older adults are associated with changes in stress-related markers, functional connectivity and brain volume.

Alzheimers Res Ther

January 2025

Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Institut Blood and Brain @ Caen-Normandie, GIP Cyceron, Bd Henri Becquerel, BP 5229, Caen, 14074, France.

Background: Subclinical depressive symptoms increase the risk of developing Alzheimer's disease (AD). The neurobiological mechanisms underlying this link may involve stress system dysfunction, notably related to the hippocampus which is particularly sensitive to AD. We aimed to investigate the links between blood stress markers and changes in brain regions involved in the stress response in older adults with or without subclinical depressive symptoms.

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Usefulness of dynamic perfusion SPECT with quantitative assessment of myocardial perfusion reserve for the detection of myocardial ischaemia in patients with presumed new left bundle branch block.

Eur Heart J Imaging Methods Pract

July 2024

Department of Nuclear Medicine, CHU de Caen Normandie, Normandie Univ, UNICAEN UR  4650 PSIR, Avenue Cote de Nacre, 14000 Caen, France.

Article Synopsis
  • The study aimed to assess how well dynamic SPECT with quantitative analysis of myocardial blood flow (MBF) and myocardial flow reserve (MFR) can detect coronary artery disease (CAD) in patients with new left bundle branch block (LBBB).
  • The evaluation involved 174 patients with LBBB, finding SPECT abnormalities in only a small percentage, and highlighting a correlation between reduced MFR and fixed defects, although only a few patients had significant CAD after further examination.
  • The conclusion suggests that routine screening for CAD in patients with presumed new LBBB may not be necessary, given the low incidence of actual CAD found.
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Background: In cirrhotic patients, portal hypertension increases mortality after surgery. We evaluated the impact of pre-operative transjugular intrahepatic portosystemic shunt (TIPS) on the outcomes of bariatric surgery in cirrhosis.

Methods: Multicentric retrospective cohort.

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Background: Proton therapy (PRT) is an innovative radiotherapeutic modality for the treatment of cancer with unique ballistic properties. The depth-dose distribution of a proton beam reduces exposure of healthy tissues to radiations, compared with photon-therapy (XRT). To date, only few indications for proton-therapy, like pediatric cancers, chordomas, or intra-ocular neoplasms, are reimbursed by Health systems.

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The Zika virus (ZIKV), an arbovirus within the Flavivirus genus, is associated with severe neurological complications, including Guillain-Barré syndrome in affected individuals and microcephaly in infants born to infected mothers. With no approved vaccines or antiviral treatments available, there is an urgent need for effective therapeutic options. This study aimed to identify new natural compounds with inhibitory potential against the NS2B-NS3 protease (PDB ID: 5LC0), an essential enzyme in viral replication.

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Linking structural and functional changes during healthy aging and semantic dementia using multilayer brain network analysis.

Cortex

December 2024

Normandie Univ, UNICAEN, PSL Université Paris, EPHE, Inserm, U1077, CHU de Caen, Centre Cyceron, Neuropsychologie et Imagerie de la Mémoire Humaine, Caen, France. Electronic address:

Healthy aging is characterized by frontal and diffuse brain changes, while certain age-related pathologies such as semantic dementia will be associated with more focal brain lesions, particularly in the temporo-parietal regions. These changes in structural integrity could influence functional brain networks. Here we use multilayer brain network analysis on structural (DWI) and functional (fMRI) data in younger and older healthy individuals and patients with semantic dementia.

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