1,755 results match your criteria: "Universite de Versailles Saint Quentin[Affiliation]"

A metal-free dual photo- and organocatalytic decarbonylation of aliphatic aldehydes is described for the first time. On the one hand, a wide range of tertiary aldehydes are smoothly decarbonylated thanks to the combination of thioxanthone as photocatalyst and diphenyl disulfide as organocatalyst. On the other hand, by simply using 4-CzIPN as photocatalyst instead of thioxanthone, various secondary aldehydes readily undergo decarbonylation in an orthogonal manner, via the in situ formation of 1,4-dihydropyridines.

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Permafrost thaw poses diverse risks to Arctic environments and livelihoods. Understanding the effects of permafrost thaw is vital for informed policymaking and adaptation efforts. Here, we present the consolidated findings of a risk analysis spanning four study regions: Longyearbyen (Svalbard, Norway), the Avannaata municipality (Greenland), the Beaufort Sea region and the Mackenzie River Delta (Canada) and the Bulunskiy District of the Sakha Republic (Russia).

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Background: The Montreal classification has been widely used in Crohn's disease since 2005 to categorize patients by the age of onset (A), disease location (L), behavior (B), and upper gastrointestinal tract and perianal involvement. With evolving management paradigms in Crohn's disease, we aimed to assess the performance of gastroenterologists in applying the Montreal classification.

Methods: An online survey was conducted among participants at an international educational conference on inflammatory bowel diseases.

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Genetically modified foods (GMFs) have garnered significant attention due to their implications for health, agriculture, and food security. Understanding knowledge and perceptions of GMFs is essential, as these factors influence acceptance and attitudes. This study, the first of its kind in Lebanon, aimed to assess the knowledge, attitudes, and perceptions regarding GMFs and to explore their association with socio-demographic characteristics.

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Medication Use in People Aged 90 Years and Older: A Nationwide Study.

J Am Med Dir Assoc

January 2025

EPI-PHARE Scientific Interest Group, French National Agency for Medicines and Health Products Safety, French National Health Insurance, Saint-Denis, France; Université de Versailles Saint-Quentin-en-Yvelines, France.

Objective: We aimed to describe the medications prescribed to people aged ≥90 years.

Design: A cohort study was performed using data from the year 2022.

Setting And Participants: Using data from the French National Health Data System, people aged ≥90 years affiliated with the general insurance scheme were included.

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Arctic soil carbon insulation averts large spring cooling from surface-atmosphere feedbacks.

Proc Natl Acad Sci U S A

January 2025

Laboratoire de Géologie, Ecole Normale Supérieure, CNRS, Institut Pierre-Simon Laplace, Université Paris Sciences et Lettres, Paris 75005, France.

The insulative properties of soil organic carbon (SOC) and surface organic layers (moss, lichens, litter) regulate surface-atmosphere energy exchanges in the Arctic through a coupling with soil temperatures. However, a physical description of this process is lacking in many climate models, potentially biasing their high-latitude climate predictions. Using a coupled surface-atmosphere model, we identified a strong feedback loop between soil insulation, surface air temperature, and snowfall.

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Importance: Amid escalating mental health challenges among young individuals, intensified by the COVID-19 pandemic, analyzing postpandemic trends is critical.

Objective: To examine mental health care utilization and prescription rates for children, adolescents, and young adults before and after the COVID-19 pandemic.

Design, Setting, And Participants: This population-based time trend study used an interrupted time series analysis to examine mental health care and prescription patterns among the French population 25 years and younger.

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Evaluation of the Learning Curve Threshold in Robot-Assisted Lung Cancer Surgery: A Nationwide Population-Based Study.

Cancers (Basel)

December 2024

Service de Biostatistiques et d'Information Médicale (DIM), CHU Dijon Bourgogne, 21000 Dijon, France.

Background: Recent publications suggest that the threshold for validation of the learning curve is 25 procedures. The aim of this study was to evaluate this threshold using another rarely used method, based on a composite quality indicator.

Methods: We included all patients from the French medico-administrative database receiving robot-assisted surgery for lung cancer, with a focus on hospitals performing at least 25 procedures over the period 2019-2022.

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A unique collaboration of multi-disciplinary experts from the European Association of Dermato-Oncology (EADO), the European Dermatology Forum (EDF), and the European Organization of Research and Treatment of Cancer (EORTC) was formed to make recommendations on cutaneous melanoma diagnosis and treatment, based on systematic literature reviews and the experts' experience. Cutaneous melanomas are excised with one to two-centimeter safety margins. For a correct stage classification and treatment decision, a sentinel lymph node biopsy shall be offered in patients with tumor thickness ≥ 1.

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Background: Spinal muscular atrophy (SMA) patients benefit from pre-mRNA splicing modifiers targeting the SMN2 gene, which aims to increase functional SMN production. The animal toxicity affecting spermatogenesis associated with one such treatment raised questions about male SMA patients' spermatogenesis.

Methods: This descriptive, cross-sectional study was conducted from June 2022 to July 2023.

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This guideline was developed in close collaboration with multidisciplinary experts from the European Association of Dermato-Oncology (EADO), the European Dermatology Forum (EDF) and the European Organization for Research and Treatment of Cancer (EORTC). Recommendations for the diagnosis and treatment of melanoma were developed on the basis of systematic literature research and consensus conferences. Cutaneous melanoma (CM) is the most dangerous form of skin tumor and accounts for 90 % of skin cancer mortality.

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Diaphragm ultrasound and diaphragmatic 2D speckle tracking imaging in acute heart failure: a case series.

Eur Heart J Case Rep

December 2024

Department of Cardiology, Ambroise Paré Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre de référence des cardiomyopathies et des troubles du rythme cardiaque héréditaires ou rares, Université de Versailles-Saint Quentin (UVSQ), Boulogne-Billancourt, France.

Background: Respiratory muscle function can be affected in patients with heart failure. Ultrasound can be used to assess diaphragm, the main inspiratory muscle. Speckle tracking imaging is an imaging technology providing the evaluation of tissue deformation during contraction.

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Background/objectives: This study examined the association between adherence to the Mediterranean dietary approaches to stop hypertension Intervention for Neurodegenerative Delay (MIND) diet, its components, and recurrent depressive symptoms (DepSs).

Methods: The analyses included 4824 participants (73% men, mean age = 61; SD = 5.9) from the British Whitehall II cohort study.

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Changes in Descending Pain Modulation During Anti-Tumor Necrosis Factor Therapy: A Prospective Study in Rheumatoid Arthritis and Spondyloarthritis.

Arthritis Rheumatol

December 2024

Le Groupe Hospitalier Universitaire Paris Centre Cochin and Université Paris Cité, Paris, France, and Inserm U987, Université de Versailles Saint Quentin, Paris-Saclay University, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt, France.

Objective: In rheumatoid arthritis (RA) and spondyloarthritis (SpA), managing persistent pain remains challenging. Little is known regarding impaired pain pathways in these patients and the impact of biologic disease-modifying antirheumatic drugs (bDMARDs). The objective of the Rheumatism Pain Inhibitory Descending Pathways study was to assess pain thresholds and descending pain modulation in patients with active RA or SpA following introduction of a tumor necrosis factor inhibitor (TNFi).

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Acute kidney injury as a key predictor of cardiovascular events in chronic kidney disease patients: the CKD-REIN study.

Clin Kidney J

December 2024

Public Health Department, Epidémiologie - Maison régionale de la recherche clinique, CHU Lille, Lille, France.

Background And Hypothesis: Cardiovascular diseases are a leading cause of morbidity and mortality in patients with chronic kidney disease (CKD). Acute kidney injury (AKI) has been increasingly recognized as a potential exacerbating factor for cardiovascular events in these patients. The CKD-REIN study aims to explore the relationship between AKI and the risk of major adverse cardiovascular events (MACE) in a cohort of CKD patients.

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Changes in rates of endophthalmitis after cataract surgery over the last 23years.

J Fr Ophtalmol

December 2024

Quinze-Vingts National Ophthalmology Hospital, IHU FOReSIGHT, 28, rue de Charenton, 75012 Paris, France; Sorbonne Université, Inserm, CNRS, Institut de la Vision, IHU FOReSIGHT, 17, rue Moreau, 75012 Paris, France.

Purpose: Acute postoperative endophthalmitis (APE) is a rare but severe complication of cataract surgery. During the most recent decades, the use of povidone-iodine (PVI) before surgery combined with intracameral cefuroxime has drastically reduced the incidence of endophthalmitis. The goal of this study is to describe the changes in endophthalmitis rates after cataract surgery over the past two decades in a large tertiary ophthalmology center.

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[Techniques for imaging optic disc vasculature in glaucomatous optic neuropathy: A review of the literature].

J Fr Ophtalmol

December 2024

IHU FOReSIGHT, service 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Direction de l'hospitalisation et des soins, Inserm, IHU FOReSIGHT, centre d'investigation clinique 1423, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Hôpital Ambroise-Paré, AP-HP, université de Versailles Saint-Quentin en Yvelines, 9, avenue Charles-De-Gaulle, 92100 Boulogne-Billancourt, France; Institut de la vision, IHU FOReSIGHT, Sorbonne université, 17, rue Moreau, 75012 Paris, France.

The anatomy and vasculature of the optic nerve head are complex and subject to numerous variations. The main risk factor for glaucomatous optic neuropathy is elevated intraocular pressure, but many other factors have been identified. A vascular component seems to play an important role in the pathogenesis and/or progression of glaucomatous optic neuropathy, either under the influence of ocular hypertension or as an independent risk factor, particularly as in normal tension glaucoma (NTG).

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[A case of post-traumatic paracentral acute middle maculopathy associated with glaucoma].

J Fr Ophtalmol

January 2025

Service d'Ophtalmologie III, Centre hospitalier national d'ophtalmologie des Quinze-Vingts, IHU FOReSIGHT, 28, rue de Charenton, 75012 Paris, France; Institut de la vision, Sorbonne université, INSERM, CNRS, IHU FOReSIGHT, 17, rue Moreau, 75012 Paris, France; Hôpital Ambroise-Paré, AP-HP, université de Versailles Saint-Quentin-en-Yvelines, 9, avenue Charles-De-Gaulle, 92100 Boulogne Billancourt, France; Inserm-DGOS, centre d'investigation clinique 1423, Centre hospitalier national d'Ophtalmologie des Quinze-Vingts, IHU FOReSIGHT, 28, rue de Charenton, 75012 Paris, France.

Paracentral acute middle maculopathy is a lesion of the inner nuclear layer and outer plexiform layer of the macula associated with local or systemic vascular diseases that can induce retinal hypoxia. The etiologic mechanism may be related to the increase in intraocular pressure which creates conditions of hypoperfusion in the retinal vasculature. We present a case that shows a possible association between paracentral acute middle maculopathy and glaucoma with the trauma of elevated intraocular pressure as a triggering event.

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Circulating tumor cells (CTCs) have been extensively studied in breast cancer (BC), with large studies establishing CTCs as a robust prognostic biomarker in early and metastatic breast cancer (MBC). Several phase II and phase III trials have investigated the clinical utility of CTCs in BC. Here, we outline the current landscape for the use of CTCs in the clinic at different stages of BC, focusing first on early BC, then on MBC, with a particular focus on interventional clinical trials based on CTCs.

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Prior research has found that immigrants are often overeducated: their educational attainment is higher than required or commonly observed in their occupation. Yet, less is known about the education-occupation mismatch among immigrants' children and grandchildren (the second and third generations). Using the French Trajectories and Origins 2 (TeO2, 2019-2020) survey, we test theoretically grounded hypotheses on the level of vertical (educational attainment) and horizontal (field of study) mismatch in the first, second, and third generations as well as on the mechanisms underlying the mismatch.

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[Management of congenital thrombotic thrombocytopenic purpura in the era of recombinant ADAMTS13 protein: Recommendations from the Reference Center for Thrombotic Microangiopathies (CNR-MAT)].

Rev Med Interne

November 2024

Inserm UMRS1138, centre de recherche des cordeliers, université Paris Cité, Sorbonne université, Paris, France; Centre de référence des microangiopathies thrombotiques (CNR-MAT), AP-HP, Sorbonne université (AP-HP.6), Paris, France; Service d'hématologie, hôpital Saint-Antoine, AP-HP, Sorbonne université (AP-HP.6), 184, rue du Faubourg Saint-Antoine, 75012 Paris, France. Electronic address:

Thrombotic Thrombocytopenic Purpura (TTP) is a rare disease characterized by a severe deficiency of ADAMTS13, the specific protease that cleaves von Willebrand factor. The congenital form of TTP (cTTP) results from pathogenic variants of the ADAMTS13 gene. cTTP has two peaks of incidence: one in childhood and the other in adulthood, mainly in an obstetric context.

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Objectives: Intubation is a common procedure in acute hypoxemic respiratory failure (AHRF), with minimal evidence to guide decision-making. We conducted a survey of when to intubate patients with AHRF to measure the influence of clinical variables on intubation decision-making and quantify variability.

Design: Factorial vignette-based survey asking "Would you recommend intubation?" Respondents selected an ordinal recommendation from a 5-point scale ranging from "Definite no" to "Definite yes" for up to ten randomly allocated vignettes.

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Background: Quality of life is decreased in bipolar disorders (BD) and contributes to poor prognosis. However, little is known about the causal pathways that may affect it. This study aimed to explore health-related QoL (HRQoL) in BD and investigate its relationship with cognition and psychosocial functioning.

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A substantial body of research has shown an association between career mobility and mental health in later life through health selection and causal processes, with favourable health outcomes associated with upward mobility. However, gender differences in these associations have been largely overlooked, despite evidence of gender inequalities in career opportunities. We use data on individuals aged 55-69 from the CONSTANCES cohort.

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