Publications by authors named "Devaux S"

Article Synopsis
  • Ambient air pollution is a significant risk factor for chronic obstructive pulmonary disease (COPD), which is a leading cause of death globally, and this study investigated the link between daily air pollutant levels and emergency room visits for acute COPD exacerbations.
  • The research was conducted in Amiens, France, in 2017, analyzing 240 emergency room visits among 168 COPD patients and focusing specifically on pollutants like nitrogen dioxide, ozone, and particulate matter, while accounting for other factors like temperature and pollen allergies.
  • The results showed a notable correlation between daily emergency visits and particulate matter concentrations, while long-term exposure to air pollutants did not show a consistent link to more frequent COPD exacerbations.
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Context: Gastric and oesophageal cancers are common. They are also expected to increase in incidence in the next few years and are characterized by poor prognosis. Surprisingly, whereas the incidence of severe anxiety and depression is high in patients with gastric and oesophageal cancers, the influence of symptoms of depression and anxiety on postoperative complications has barely been explored.

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Persistent COVID-19 symptoms may be related to residual inflammation, but no preventive treatment has been evaluated. This study aimed to analyze, in a prospective cohort, whether corticosteroid use in the acute phase of COVID-19 in hospitalized patients may reduce the risk of persistent COVID-19 symptoms. A total of 306 discharged patients, including 112 (36.

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  • Cemiplimab has shown promise in real-world use for locally advanced and metastatic cutaneous squamous-cell carcinomas (CSCCs), with a best overall response rate of 50.4% among treated patients.
  • There was a median progression-free survival (PFS) of 7.9 months, and one-year overall survival (OS) was 73% for patients with better performance status (PS < 2).
  • Although some patients experienced severe adverse events, the overall safety and efficacy indicate cemiplimab may be a beneficial treatment option, especially for immunocompromised individuals.
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Although cardiac diseases such as acute myocardial infarction, heart failure and arrhythmias are the leading cause of cardiovascular complications in rheumatoid arthritis (RA), their pathogenesis is far from being understood and optimal therapeutic options to treat specifically these disorders in RA are lacking. Preclinical studies on animal models of arthritis can help to decipher the complex link between arthritis and the heart, and to identify critical pathways and novel therapeutic targets. This review presented the available data on cardiac disorders in animal models of RA, as well as the current knowledge on pathophysiology and pharmacology of these disorders.

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Objectives: To determine if the adjuvant-induced arthritis model reproduced coronary and cardiac impairments observed in rheumatoid arthritis patients. The link between disease activity and circulating levels of angiotensin II and endothelin-1 have been studied, as well as the myocardial susceptibility to ischemia.

Methods: At the acute inflammatory phase, coronary reactivity was assessed in isolated arteries, and cardiac function was studied in isolated perfused hearts, before and after global ischemia/reperfusion.

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A theory for data interpretation is presented for a cylindrical Langmuir probe in plasma parallel to the magnetic field direction. The theory is tested in a linear low-temperature plasma device Aline, in a capacitive radio-frequency (RF) discharge. The probe is placed on a 3D manipulator, and a position scan is performed.

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  • Researchers have identified long-chain acylcarnitines (LC ACs) in a rat spinal cord injury model using 3D mass spectrometry imaging for the first time.
  • Specific types of acylcarnitines were observed at the injury site as early as 3 days post-injury and remained detectable for up to 10 days, showing distinct patterns around the lesion.
  • The localization of these lipids along with the presence of microglia/macrophages suggests they may play an important role in the inflammatory response and progression of spinal cord injuries.
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  • The study explores the use of RhoA inhibitors (RhoAi) for treating spinal cord injuries (SCI) by analyzing their effects on dorsal root ganglia (DRG) cells in various culture conditions.
  • Researchers created a neuroproteomic-systems biology platform to track molecular changes over time following RhoAi treatment, revealing alterations in transcription factors and growth cone-related factors that aid in nerve regeneration.
  • In a rat model, RhoAi delivered with FK506 showed early recovery in movement and increased synaptic connections, highlighting the need for ongoing treatment to support axon regeneration and improve long-term functional outcomes.
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Background: The French are frequently regarded as grouchy. In a recent study, we observed a high proportion of patients initially consulting for psoriasis because they were dissatisfied with their previous therapy. We analyzed the characteristics of these patients.

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Background: This study explored Bacopa monnieri, a medicinal Ayurvedic herb, as a cardioprotectant against ischemia/reperfusion injury using cardiac function and coronary flow as end-points.

Methods: In normal isolated rat hearts, coronary flow, left ventricular developed pressure, heart rate, and functional recovery were measured using the Langendorff preparation. Hearts were perfused with either (i) Krebs-Henseleit (normal) solution, (control), or with 30, 100 μg/ml B.

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Obesity and related metabolic diseases are associated with increased risk of cardiovascular disease. We have previously shown the beneficial effects of dietary magnesium (Mg) supplementation on cardiovascular disease in rats. Therefore, we aimed to examine the effect of an Mg-deficient or supplemented diet on adipose tissue cellularity changes during aging, and on blood pressure (BP), in rats.

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Spinal cord injury (SCI) represents a major debilitating health issue with a direct socioeconomic burden on the public and private sectors worldwide. Although several studies have been conducted to identify the molecular progression of injury sequel due from the lesion site, still the exact underlying mechanisms and pathways of injury development have not been fully elucidated. In this work, based on OMICs, 3D matrix-assisted laser desorption ionization (MALDI) imaging, cytokines arrays, confocal imaging we established for the first time that molecular and cellular processes occurring after SCI are altered between the lesion proximity, i.

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Spinal cord injury (SCI) has been implicated in neural cell loss and consequently functional motor and sensory impairment. In this study, we propose an alginate-based neurobridge enriched with/without trophic growth factors (GFs) that can be utilized as a therapeutic approach for spinal cord repair. The bioavailability of key GFs, such as Epidermal Growth factor (EGF) and basic Fibroblast Growth Factor (bFGF) released from injected alginate biomaterial to the central lesion site significantly enhanced the sparing of spinal cord tissue and increased the number of surviving neurons (choline acetyltransferase positive motoneurons) and sensory fibres.

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Langmuir probe measurements in front of high power ion cyclotron resonant frequency antennas are not possible or simply too noisy to be analyzed properly. A linear experiment is a radio frequency (RF) magnetized plasma discharge reactor designed to probe the rectified potential in front of such antennas but at low power level (1 kW) to next improve antenna design and mitigate sheath effects. The maximum magnetic field is 0.

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Neural progenitor cells (NPCs) are characterized as undifferentiated cells with the ability of self-renewal and multipotency to give rise to other cells of the nervous system. In our in vitro study we demonstrate the proliferative and differentiative potential of NPCs isolated from the spinal cord at different developmental stages (embryonal, early postnatal, adult), maintained and expanded within neurospheres (NSs). Using the NSs culture system, we examined the size, number of NSs and their fate when exposed to differentiation conditions.

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In the present paper we develop a new non-cell based (cell-free) therapeutic approach applied to BV2 microglial cells and spinal cord derived primary microglia (PM) using conditioned media from rat bone marrow stromal cells (BMSCs-CM). First we collected conditioned media (CM) from either naive or injured rat spinal cord tissue (SCI-CM, inflammatory stimulation agent) and from rat bone marrow stromal cells (BMSCs-CM, therapeutic immunomodulation agent). They were both subsequently checked for the presence of chemokines and growth, neurotrophic and neural migration factors using proteomics analysis.

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Arcs are the potentially most dangerous events related to Lower Hybrid (LH) antenna operation. If left uncontrolled they can produce damage and cause plasma disruption by impurity influx. To address this issue an arc real time control and protection imaging system for the Joint European Torus (JET) LH antenna has been implemented.

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Based on proteomic analyses we investigated the differences of released molecules in the conditioned media (CM) from the spinal cord central lesion and adjacent rostral and caudal segments at 3, 7, and 10 days after spinal cord injury (SCI), in order to specify the molecular environment within greater extent of tissue damage. Proteins found in CM were analyzed by shot-gun MS using nanoLC coupled to an orbitrap. The results showed some specific proteins at each site of the lesion at 3days.

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Aims: Changes in circulating brain-derived neurotrophic factor (BDNF) levels were reported in patients with or at risk for cardiovascular diseases associated with endothelial dysfunction, suggesting a link between BDNF and endothelial functionality. However, little is known on cardiovascular BDNF. Our aim was to investigate levels/localization, function, and relevance of cardiovascular BDNF.

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The new JET ITER-like wall (made of beryllium and tungsten) is more fragile than the former carbon fiber composite wall and requires active protection to prevent excessive heat loads on the plasma facing components (PFC). Analog CCD cameras operating in the near infrared wavelength are used to measure surface temperature of the PFCs. Region of interest (ROI) analysis is performed in real time and the maximum temperature measured in each ROI is sent to the vessel thermal map.

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For the new ITER-like wall at JET, two new infrared diagnostics (KL9B, KL3B) have been installed. These diagnostics can operate between 3.5 and 5 μm and up to sampling frequencies of ∼20 kHz.

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