Publications by authors named "Olivier F"

Introduction: Restoration of the anterior knee compartment is increasingly studied with the development of personalized surgery. However, evaluating the patellar tracking during the surgery is still subjective and at the surgeon's discretion. This study aimed 1) to describe the assessment of the patellar tracking during robotic-assisted total knee arthroplasty (TKA), 2) to describe a new measurement technique for evaluating the evolution of this patellar tracking, and 3) to assess its reliability and repeatability.

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  • Docosahexaenoic acid (DHA), an important omega-3 fatty acid for brain development, was studied to see if high-dose supplementation during the neonatal period could enhance behavioral functioning in very preterm children by age 5.
  • In a multicenter randomized controlled trial, 177 children were assessed at 5 years, with 132 completing neurodevelopmental evaluations.
  • Results showed no significant improvement in behavioral functioning or secondary outcomes for those who received DHA compared to a placebo, indicating that high-dose DHA did not have the expected positive effects.
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  • Functional implant positioning (FIP) in total knee arthroplasty (TKA) uses preoperative CT scans and robotic technology to improve ligament balancing across different knee flexion angles.
  • A study involving 47 patients showed that FIP successfully achieved balanced knee conditions at 10° and 90° of flexion, but less so at 45°, indicating a need for further investigation into mid-flexion discrepancies.
  • Overall, the research highlights FIP's effectiveness in achieving proper knee alignment and suggests potential areas for improvement during the TKA process.
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In marine invertebrates, abiotic stresses on adults can act directly on gametes quality, which impacts phenotype and development success of the offspring. Human activities introduce noise pollution in the marine environment but still few studies on invertebrates have considered the impacts on adult or larval stages separately, and to our knowledge, never investigated the cross-generational effects of anthropogenic noise. This article explores parental effects of pile driving noise associated with the building phase of offshore wind turbines on a coastal invertebrate, Pecten maximus (L.

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The development of bone-filling biomaterials capable of delivering in situ bone growth promoters or therapeutic agents is a key area of research. We previously developed a biomaterial constituting biphasic calcium phosphate (BCP) microparticles embedded in an autologous blood or plasma clot, which induced bone-like tissue formation in ectopic sites and mature bone formation in orthotopic sites, in small and large animals. More recently, we showed that activated carbon (AC) fiber cloth is a biocompatible material that can be used, due to its multiscale porosity, as therapeutic drug delivery system.

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Rare Earth Elements (REE) and several trace elements abundances in mussel's shells collected along the St. Lawrence River, the Estuary, and the Gulf of St. Lawrence (EGSL) reveal coherent chemical variations, with a sharp contrast between freshwater and seawater bivalves.

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Population-level dynamics of host-pathogen interactions can be characterized using quantitative live-cell imaging. Here, we present a protocol for infecting macrophages with the fungal pathogen Candida albicans in vitro and quantitative live-cell imaging of immune and pathogen responses. We describe steps for detailed image analysis and provide resources for quantification of phagocytosis and pathogen escape, as well as macrophage membrane permeabilization and viability.

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Objective: This review will assess the effectiveness of neuromuscular injury prevention strategies on injury rates among adolescent males playing sports.

Introduction: Adolescent athletes are predisposed to injuries during this period of growth. Growth-related injury risk factors can be mitigated by implementing appropriate neuromuscular injury prevention strategies.

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The Arctic is exposed to unprecedented warming, at least three times higher than the global average, which induces significant melting of the cryosphere. Freshwater inputs from melting glaciers will subsequently affect coastal primary production and organic matter quality. However, due to a lack of basic knowledge on the physiology of Arctic organisms, it remains difficult to understand how these future trophic changes will threaten the long-term survival of benthic species in coastal habitats.

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With the progress of the offshore renewable energy sector and electrical interconnection projects, a substantial rise in the number of submarine power cables is expected soon. Such cables emit either alternating or direct current magnetic fields whose impact on marine invertebrates is currently unknown and hardly studied. In this context, this study aimed to assess potential short-term exposure (30 min) effects of both alternating and direct magnetic fields of increasing intensity (72-304 μT) on the behavior of the high-ecological value velvet crab (Necora puber).

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  • The study aimed to compare the effectiveness of simulation-based just-in-time training (JITT) versus a standard 5-minute video in teaching neonatal endotracheal intubation (ETI) skills to junior residents.
  • Results showed that while both training methods had similar overall success rates, the simulation-based JITT led to a higher success rate on the first attempt and required less time for attempts.
  • Although simulation-based JITT had some advantages, it also resulted in more mucosal trauma events, suggesting it should be used as a supplementary training method rather than a complete replacement.
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  • Critical bone defect repair is challenging, and calcium-deficient apatites (CDA) are being studied as biocompatible materials that aid in bone healing.
  • Previous research showed that using activated carbon cloths (ACC) coated with CDA or strontium-doped CDA can accelerate bone repair in rats, especially in the short term.
  • This study further examines the long-term effectiveness of these patches, finding that strontium-doped patches notably enhance bone quality and integrate well without harmful debris, suggesting they are effective biomaterials for bone reconstruction.
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  • Macrophages infected with Candida auris show metabolic changes, increasing glycolysis but not producing a strong immune response (IL-1β) or stopping the growth of the pathogen.
  • C. auris can evade the immune system by using its own metabolism to thrive and kills macrophages through metabolic stress caused by glucose starvation.
  • The pathogen does not activate the NLRP3 inflammasome, leading to low inflammatory responses, indicating that targeting metabolism in both host and pathogen could offer new treatment options for C. auris infections.
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One of the biggest challenges of the 21st century is to reduce carbon emissions and offshore wind turbines seem to be an efficient solution. However, during the installation phase, high levels of noise are emitted whose impacts remain not well known, particularly on benthic marine invertebrates displaying a bentho-planktonic life-cycle. For one century, larval settlement and subsequent recruitment has been considered as a key topic in ecology as it determines largely population renewal.

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Fungal pathogens overcome antifungal drug therapy by classic resistance mechanisms, such as increased efflux or changes to the drug target. However, even when a fungal strain is susceptible, trailing or persistent microbial growth in the presence of an antifungal drug can contribute to therapeutic failure. This trailing growth is caused by adaptive physiological changes that enable the growth of a subpopulation of fungal cells in high drug concentrations, in what is described as drug tolerance.

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Introduction: Minimally invasive ventral mesh rectopexy is considered the standard of care in the surgical management of rectal prolapse syndromes in fit patients. We aimed to investigate the outcomes after robotic ventral mesh rectopexy (RVR) and compare them with our laparoscopic series (LVR). Additionally, we report the learning curve of RVR.

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Background: The trunk connects the upper and lower limbs and transfers energy during movement. Exploring the role of the trunk muscles in bowling performance affords us the opportunity to uncover potential mechanisms to improve bowling performance.

Objectives: To investigate the association between bowling performance and trunk muscle stability, strength-endurance and thickness in adolescent pace bowlers.

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The egress of Candida hyphae from macrophages facilitates immune evasion, but it also alerts macrophages to infection and triggers inflammation. To better define the mechanisms, here we develop an imaging assay to directly and dynamically quantify hyphal escape and correlate it to macrophage responses. The assay reveals that Candida escapes by using two pore-forming proteins to permeabilize macrophage membranes: the fungal toxin candidalysin and Nlrp3 inflammasome-activated Gasdermin D.

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  • * The study analyzed data from a NICU over a three-year period, finding that higher nursing overtime hours and ratios correlated with more unplanned extubations, indicating potential staffing issues.
  • * Infants who experienced unplanned extubation and needed reintubation had significantly longer mechanical ventilation durations and a greater risk of BPD compared to those who did not have unplanned extubation events.
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  • The study aimed to investigate if maternal high-dose DHA supplementation improved neurodevelopment in very preterm neonates at 18 to 22 months corrected age.
  • A randomized, double-blind, placebo-controlled trial was conducted with lactating mothers of preterm neonates, comparing outcomes for children whose mothers took DHA-rich algae oil and those on a placebo.
  • Results showed no overall improvement in cognitive, language, or motor scores between the two groups, but a notable benefit in language scores for neonates born before 27 weeks’ gestation who received DHA.
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Purpose: Robotic retromuscular abdominal wall repair (RAWR) for ventral hernias can be performed transabdominal or extraperitoneal by using an enhanced view totally extraperitoneal repair (eTEP). For defects in the meso- or epigastric region, an inverted approach can be used, starting the development of the totally extraperitoneal plane in the suprapubic region and progressing in a caudal-to-cranial direction (inverted TEP, iTEP). The aim of the study is to present the surgical technique and to report the short-term outcomes.

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  • Chylothorax, a condition involving fluid accumulation in the chest, has been rarely associated with X-linked myotubular myopathy, a genetic muscle disease, but the exact connection is unclear.
  • A neonate diagnosed prenatally with hydrops and chylothorax unfortunately died at 17 days old from respiratory failure linked to severe pulmonary hypertension.
  • Genetic testing revealed a new mutation in the MTM1 gene, confirming the diagnosis of X-linked myotubular myopathy, while lung examination showed that primary pulmonary lymphangiectasia caused the chylothorax, marking this as a unique case with notable prenatal and postnatal complications.
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  • DHA, an important omega-3 fatty acid, is investigated for its potential impact on brain development in very preterm infants through a study that supplemented high doses of DHA or placebo.
  • This follow-up study aims to analyze neurodevelopmental outcomes at 5 years of age, focusing on recruitment success and various developmental assessments in preschool-aged children.
  • The study has ethical approval, requires informed consent from mothers, and will take about 22 months to complete, utilizing standardized questionnaires and interviews to gather data on the children's development and maternal experiences.
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