Publications by authors named "Leclerc G"

Background: Prediction of outcome after stroke is critical for treatment planning and resource allocation but is complicated by fluctuations during the first days after onset. We propose a machine learning model that can provide hourly predictions based on the integration of continuous variables acquired within 72 h of hospital admission.

Methods: We analyzed 2492 admissions for ischemic stroke in the Geneva University Hospital from 01.

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  • A study assessed the COHEC programme, which uses cardiac coherence and medical hypnosis to help reduce preoperative anxiety in patients undergoing breast and gynecological cancer surgeries.
  • The programme involved daily sessions starting a week before the surgery, with a focus on patient adherence, anxiety levels, satisfaction, and postoperative recovery.
  • Results indicated that 64.2% of participants adhered to the programme, leading to decreased anxiety levels in those with severe anxiety, and 94% expressed interest in continuing the programme.
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Introduction: Management of infection on internal fixation hardware is particularly complex. The main aim of the present study was to assess bone consolidation rates under septic conditions in patients treated for bone and joint infection (BJI) with hardware retention. Secondary objectives were to determine a time limit beyond which it is unreasonable to retain hardware, and to assess risk factors for non-consolidation and functional results.

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Loss-of-function (LoF) variants in the lipid transporter ABCA7 significantly increase the risk of Alzheimer's disease (odds ratio ∼2), yet the pathogenic mechanisms and the neural cell types affected by these variants remain largely unknown. Here, we performed single-nuclear RNA sequencing of 36 human samples from the prefrontal cortex of 12 ABCA7 LoF carriers and 24 matched non-carrier control individuals. ABCA7 LoF was associated with gene expression changes in all major cell types.

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  • Adoptive cellular therapy (ACT) using memory-like natural killer (NK) cells activated with specific cytokines shows promise in treating blood cancers, especially when combined with new fusion molecules.
  • The multifunctional fusion molecule HCW9206 improves the expansion of NK cells that have been primed with another molecule (HCW9201), leading to a significant increase in their quantity and activity.
  • The "Prime and Expand" strategy enhances NK cell metabolism and durability, making it a more efficient method for preparing clinical-grade NK cells for future cancer treatments.
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Childcare services are widely used by families and thereby exert an important influence on many young children. Yet, little research has examined whether childcare may impact the development of child executive functioning (EF), one of the pillars of cognitive development in early childhood. Furthermore, despite persisting hypotheses that childcare may be particularly beneficial for children who have less access to optimal developmental resources at home, research has yet to address the possibility that putative associations between childcare and EF may vary as a function of family factors.

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Decades have passed since the controversy regarding the putative risks of childcare for mother-child attachment broke out. Yet, some uncertainty remains, as relevant studies have produced inconsistent evidence. Some have proposed that those conflicting findings may be due to the fact that the effects of childcare are conditioned on parenting.

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  • Preoperative anxiety is common among cancer patients and can lead to complications; the COHEC II Study aims to evaluate using medical hypnosis and cardiac coherence training to manage this anxiety.
  • The study is a multicentre, randomized clinical trial involving 296 patients in France, comparing a program of hypnosis and coherence training with standard anxiety management.
  • The primary measure of success is anxiety levels on surgery day, with additional focus on patient adherence, satisfaction, and recovery quality, all under ethical guidelines approved by a French Ethics Committee.
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Deep neural network models of sensory systems are often proposed to learn representational transformations with invariances like those in the brain. To reveal these invariances, we generated 'model metamers', stimuli whose activations within a model stage are matched to those of a natural stimulus. Metamers for state-of-the-art supervised and unsupervised neural network models of vision and audition were often completely unrecognizable to humans when generated from late model stages, suggesting differences between model and human invariances.

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Unlabelled: The survival rates for relapsed/refractory acute lymphoblastic leukemia (ALL) remain poor. We and others have reported that ALL cells are vulnerable to conditions inducing energy/ER-stress mediated by AMP-activated protein kinase (AMPK). To identify the target genes directly regulated by AMPKα2, we performed genome-wide RNA-seq and ChIP-seq in CCRF-CEM (T-ALL) cells expressing HA-AMPKα2 (CN2) under normal and energy/metabolic stress conditions.

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Introduction: During infected total hip arthroplasty revisions (THAR), the need for systematic antibiotic cementation remains undefined.

Hypothesis: Implantation of a primary cementless stem as first-line implant in 1-stage septic THAR provides results as good as those from a stem cemented with antibiotics in terms of infection resolution.

Materials And Methods: We retrospectively examined 35 patients operated on for septic THAR with Avenir® cementless stem placement - between 2008 and 2018 at Besançon University Hospital - with a minimum follow-up of 2 years to define healing in the absence of infectious recurrence.

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  • The accumulation of senescent cells (SNCs) contributes to chronic inflammation and age-related diseases, but the bifunctional immunotherapeutic HCW9218 can reduce these cells and their harmful effects.
  • In diabetic mice, HCW9218 improved glucose metabolism and insulin resistance by decreasing senescent pancreatic beta cells and related inflammation.
  • Additionally, in aged mice, HCW9218 not only lowered senescent cells but also improved gene expression linked to metabolism and longevity, enhancing physical performance without harming their overall health.
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To describe the number of prosthetic joint infections (PJIs) with late documentation and to identify associated factors. Bacterial PJIs with surgical management between November 2015 and November 2019 in a French center were analyzed. Results of short (72 h) and late culture (at 14 days) were analyzed.

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Introduction: There has been a recent rise in public perception that vaccines are unsafe, fostering vaccine hesitancy (VH). Few interventions have focused on teaching medical students' communication skills for counseling vaccine-hesitant patients.

Methods: Our educational intervention, designed for medical students, involved a self-study module followed by an interactive session on VH.

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  • Natural killer (NK) cells show promise as a cancer treatment but face issues such as persistence and tumor recognition; priming them with specific interleukins (rhIL-12, rhIL-15, rhIL-18) enhances their effectiveness.
  • A new platform using inert tissue factor scaffolds was created to produce heteromeric fusion protein complexes, enabling scalable production of these interleukins (HCW9201) and additional CD16 engagement (HCW9207).
  • Studies show that HCW9201 improves NK cell function and memory-like characteristics, making it a potential solution for producing effective NK cells in a clinical setting for cancer therapies.
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In this perspective, we draw on recent scientific research on the coffee leaf rust (CLR) epidemic that severely impacted several countries across Latin America and the Caribbean over the last decade, to explore how the socioeconomic impacts from COVID-19 could lead to the reemergence of another rust epidemic. We describe how past CLR outbreaks have been linked to reduced crop care and investment in coffee farms, as evidenced in the years following the 2008 global financial crisis. We discuss relationships between CLR incidence, farmer-scale agricultural practices, and economic signals transferred through global and local effects.

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Acute lymphoblastic leukemia (ALL) is a leading cause of cancer-related death in children and adolescents, and cure rates for relapsed/refractory ALL remain dismal, highlighting the need for novel targeted therapies. To identify genome-wide metabolic-stress regulated genes, we used RNA-sequencing in ALL cells treated with AICAR, an AMPK activator. RNA-sequencing identified the immediate early genes (IEGs) as a subset of genes downregulated by AICAR.

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Introduction: Traumatic injuries to the distal quarter of the leg present a significant risk of skin necrosis and exposure of the underlying fracture site or the osteosynthesis material that often result in bone and joint infection. In the case of small or medium-sized bone exposure, local muscles may be one of the best options for lower extremity coverage. We describe our experience using the extensor digitorum brevis muscle flap in a context of posttraumatic bone and joint infection in fourteen patients.

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Increased interferon-α (IFN-α) production is a critical component in the pathophysiology of systemic lupus erythematosus (SLE) and other rheumatic autoimmune diseases. Herein, we report the characterization of S95021, a fully human IgG1 anti-IFN-α monoclonal antibody (mAb) as a novel therapeutic candidate for targeted patient populations. S95021 was expressed in CHOZN GS-/- cells, purified by chromatography and characterized by using electrophoresis, size exclusion chromatography and liquid chromatography-mass spectrometry.

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Background: Data related to long-term safety of intracoronary (IC) injection of CD133+ bone marrow stem cells (BMSC) following an acute myocardial infarction (MI) are still lacking.

Methods: COMPARE-AMI is a double-blind, placebo-controlled phase II clinical trial evaluating the safety and efficacy of IC injection of CD133+ enriched hematopoietic BMSC in patients with ST-elevation myocardial infarction (STEMI) and persistent left ventricular (LV) dysfunction following successful primary percutaneous coronary intervention (PCI). Herein, we report outcomes up to ten years of follow-up.

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There are very few published studies describing the treatment of segmental bone defects of the forearm using the induced membrane technique. The objectives of this study were to evaluate the time to bone union, the function of the joints above and below the treated bone segment and the patients' quality of life over the long-term. We performed a retrospective study in all patients treated by the induced membrane for a forearm bone defect over at 13-year period.

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The original version of this article unfortunately contained a mistake. The presentation and legends of Figs. 4 and 5 were incorrect.

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Purpose: Previous clinical studies have shown the effectiveness of bone repair using two-stage surgery called the induced membrane (IM) technique. The optimal wait before the second surgery is said to be 1 month. We have been successfully performing the IM technique while waiting an average of 6 months to carry out the second stage.

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Aims: The aim of this study was to assess the acute performance of the 95 µm ArterioSorb oriented poly L-lactic acid (PLLA) scaffold in comparison with the XIENCE metallic drug-eluting stent (DES) in porcine coronary arteries.

Methods And Results: In 15 non-atherosclerotic Yucatan mini pigs, the ArterioSorb (3.0/14 mm) and XIENCE (3.

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Background: Designing peripheral arterial stents has proved challenging, as implanted devices will repetitively and unpredictably deform and fatigue during movement. Preclinical testing is often inadequate, given the lack of relevant animal models. The purpose of this study was to test the hypothesis that deformation of the human peripheral vasculature could be qualitatively and quantitatively modeled using an experimental animal.

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