597 results match your criteria: "faculté des sciences de l'université de Rouen[Affiliation]"

The sulfur-containing chemical warfare agents sulfur mustard HD and nerve agent VX are highly toxic and persistent in the environment. Therefore, their neutralisation requires harsh oxidation conditions, but also precise selectivity. Here we report the safe and effective detoxification of surrogates CEES and PhX by selective oxidation of the sulfur atom by generating peracetic acid from AcOEt and aq.

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Profile and Usefulness of Serum Cytokines to Predict Prognosis in Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease.

Neurol Neuroimmunol Neuroinflamm

March 2025

Hospices Civils de Lyon, Service de Neurologie, Sclérose en Plaques, Pathologies de la Myéline et Neuro-Inflammation-Hôpital Neurologique Pierre Wertheimer, Bron Cedex.

Objectives: To characterize the serum cytokine profile in myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) at onset and during follow-up and assess their utility for predicting relapses and disability.

Methods: This retrospective multicentric cohort study included patients aged 16 years and older meeting MOGAD 2023 criteria, with serum samples collected at baseline (≤3 months from disease onset) and follow-up (≥6 months from the baseline), and age-matched and time to sampling-matched patients with multiple sclerosis (MS). Eleven cytokines were assessed using the ELLA system.

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Electrochemical carbon dioxide (CO) reduction from aqueous solutions offers a promising strategy to overcome flooding and salt precipitation in gas diffusion electrodes used in gas-phase CO electrolysis. However, liquid-phase CO electrolysis often exhibits low CO reduction rates because of limited CO availability. Here, a macroporous Ag mesh is employed and activated to achieve selective CO conversion to CO with high rates from an aqueous bicarbonate solution.

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Prediction of the need of enteral nutrition during radiation therapy for head and neck cancers.

Radiother Oncol

February 2025

INSERM UMR 1138, Team 22, Information Science to Support Personalized Medicine, Centre de Recherche des Cordeliers, Université de Paris, 15 rue de l'école de médecine 75006 Paris, France; Radiation Oncology, Hôpital Européen Georges Pompidou, 20 rue Leblanc 75015 Paris, France.

Introduction: Patients with a head and neck (HN) cancer undergoing radiotherapy risk critical weight loss and oral intake reduction leading to enteral nutrition. We developed a predictive model for the need for enteral nutrition during radiotherapy in this setting. Its performances were reported on a real-world multicentric cohort.

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Overt and hidden polymorphism in the binary system involving the Z- and E- isomers of broparestrol.

Int J Pharm

January 2025

Laboratoire SMS, UR 3233, Université de Rouen Normandie, Normandie Université, F76000, Rouen, France. Electronic address:

Broparestrol has been used as a drug to treat acne in the form of a mixture of its two stereoisomers. Although it has been withdrawn from the market, the binary system is rich in polymorphism and understanding the phase behaviour of the binary system involving the E- and Z-isomers is challenging. Physical mixtures do not immediately give rise to equilibrium phase behaviour, whereas recrystallization often leads to metastable phases and the appearance of stable phases can take years.

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Purpose: Missense de novo variants in CACNA1G, which encodes the Cav3.1 T-type calcium channel, have been associated with a severe, early-onset form of cerebellar disorder with neurodevelopmental deficits (SCA42ND). We explored a large series of pediatric cases carrying heterozygous variants in CACNA1G to further characterize genotype-phenotype correlations in SCA42ND.

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The psychoplastogens ibogaminalog and ibogainalog induce antidepressant-like activity in naïve and depressed mice by mechanisms involving 5-HT receptor activation and serotonergic transmission.

Prog Neuropsychopharmacol Biol Psychiatry

January 2025

Department of Medical Biochemistry, Rouen University Hospital, CHU de Rouen, France; Différenciation et Communication Neuroendocrine, Endocrine et Germinale Laboratory, Institute for ResearchDr.nd Innovation in Biomedicine of Normandy (IRIB), University of Rouen, INSERM 1239, 76000 Rouen, France. Electronic address:

The antidepressant-like activity of two psychoplastogens, ibogainalog (IBG) and ibogaminalog (DM506), was studied in naïve mice using the forced swim test (FST) and tail suspension test (TST). The behavioral results showed that a single administration of 25 mg/kg DM506 or 10 mg/kg IBG induced antidepressant-like activity in naïve mice in a volinanserin-sensitive manner that persisted for 72 h. Similar results were observed using the chronic immobilization stress (CIS) test, in which depression symptoms were reduced for 48 h.

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Article Synopsis
  • The study explores a method using anti-fimbrial modified magnetic reduced graphene oxide nanoheaters to selectively target and eliminate bacteria responsible for urinary tract infections.
  • Concerns are raised about the potential implications of this selective eradication approach, including its effectiveness and safety.
  • The paper emphasizes the importance of understanding both the benefits and risks associated with such innovative treatments for infections.
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Glycomolecules: from "sweet immunity" to "sweet biostimulation"?

Physiol Plant

December 2024

Université de Rouen Normandie, Normandie Univ, GlycoMEV UR 4358, SFR Normandie Végétal FED 4277, Fédération NORSEVE (Normandie-Québec), Innovation Chimie Carnot, IRIB, GDR CNRS Chemobiologie, RMT BESTIM, Rouen, France.

Climate changes and environmental contaminants are daunting challenges that require an urgent change from current agricultural practices to sustainable agriculture. Biostimulants are natural solutions that adhere to the principles of organic farming and are believed to have low impacts on the environment and human health. Further, they may contribute to reducing the use of chemical inputs while maintaining productivity in adverse environments.

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Optimizing conditions in online RPLC × SFC for the analysis of complex samples containing neutral compounds: Solving injection issues.

J Chromatogr A

January 2025

Université de Lyon, Institut des Sciences Analytiques, UMR 5280 CNRS, 5 rue de la Doua, Villeurbanne 69100, France. Electronic address:

The online combination of reversed-phase liquid chromatography and supercritical fluid chromatography (online RPLC × SFC) is an attractive technique for the characterization of complex samples containing neutral compounds as the two techniques are highly complementary, especially with a polar stationary phase in supercritical fluid chromatography (SFC). However, the setup is challenging due to the presence of hydro-organic solvents in RPLC, which become injection solvent in SFC. In this study, numerous key experimental parameters were identified and found to have a major effect on peak shape under RPLC × SFC conditions.

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Germline mutations in a G protein identify signaling cross-talk in T cells.

Science

September 2024

Human Immunological Diseases Section, Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research (DIR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA.

Article Synopsis
  • Researchers studied mutations in a gene that affects a key protein involved in cell signaling, which is linked to severe health issues like impaired immunity in patients.
  • The mutations were found to disrupt normal cell behavior by promoting excessive cell growth and responses to immune signals, specifically T cell receptor stimulation.
  • The mutant protein was shown to interfere with a regulatory protein, leading to heightened activity of important signaling pathways that contribute to cell growth and survival.
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Background: Factors associated with severe COVID-19 infection have been identified; however, the impact of infection on longer-term outcomes is unclear. The objective of this study was to examine the impact of COVID-19 infection on the trajectory of lung function and nutritional status in people with cystic fibrosis (pwCF).

Methods: This is a retrospective global cohort study of pwCF who had confirmed COVID-19 infection diagnosed between January 1, 2020 and December 31, 2021.

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Phenolic Dienes as Highly Selective Dienophiles in the Asymmetric Organocatalyzed Three-Component Vinylogous Povarov Reaction.

J Org Chem

September 2024

Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.

Article Synopsis
  • Our research introduces a new method for creating 1,2,3,4-tetrahydroquinolines using a chiral phosphoric acid in a three-component Povarov reaction.
  • This process makes use of phenolic dienes as dienophiles and yields a variety of 2,3,4-trisubstituted tetrahydroquinolines.
  • The resulting compounds have a styryl group at position 4 and are produced in high yields with impressive selectivity measures, including regio-, diastereo-, and enantioselectivities greater than 95:5 dr and up to 99% ee.
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Rigorous justification of a localized approximation to encode off-axis Gaussian acoustical beams.

J Acoust Soc Am

July 2024

Department of Electrical and Computer Engineering, São Carlos School of Engineering, University of São Paulo, 400 Trabalhador São-Carlense Avenue, 13566-590, São Carlos, Sao Paulo, Brazil.

With the model of generalized Lorenz-Mie theory (GLMT) and the extended boundary condition method, describing the interaction between electromagnetic (EM) waves (more specifically laser beams) and particles, an acoustical GLMT-like framework can be used to deal with acoustical wave scattering. The incident acoustical wave may then be encoded in a set of beam shape coefficients (BSCs) similar to the ones used in EM scattering. Following a paper devoted to the evaluation of acoustical BSCs using a localized approximation in the case of on-axis Gaussian acoustical beams, the present paper deals with the evaluation of acoustical BSCs in the case of off-axis Gaussian acoustical beams.

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Background And Aims: Baveno VII consensus suggests that screening endoscopy can be spared in patients with compensated cirrhosis when spleen stiffness measurement (SSM) by vibration-controlled transient elastography (VCTE) is ≤40 kPa as they have a low probability of high-risk varices (HRV). Conversely, screening endoscopy is required in all patients with porto-sinusoidal vascular disorder (PSVD). This study aimed to evaluate the performance of SSM-VCTE to rule out HRV in patients with PSVD and signs of portal hypertension.

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Background: A notable increase in severe cases of COVID-19, with significant hospitalizations due to the emergence and spread of JN.1 was observed worldwide in late 2023 and early 2024. However, no clinical data are available regarding critically-ill JN.

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Photocatalytic Asymmetric Acyl Radical Truce-Smiles Rearrangement for the Synthesis of Enantioenriched α-Aryl Amides.

Angew Chem Int Ed Engl

September 2024

Institut de Chimie des Substances Naturelles CNRS, Univ. Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France.

The radical Truce-Smiles rearrangement is a straightforward strategy for incorporating aryl groups into organic molecules for which asymmetric processes remains rare. By employing a readily available and non-expensive chiral auxiliary, we developed a highly efficient asymmetric photocatalytic acyl and alkyl radical Truce-Smiles rearrangement of α-substituted acrylamides using tetrabutylammonium decatungstate (TBADT) as a hydrogen atom-transfer photocatalyst, along with aldehydes or C-H containing precursors. The rearranged products exhibited excellent diastereoselectivities (7 : 1 to >98 : 2 d.

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Rationale and design of the FRENch CoHort of myocardial Infarction Evaluation (FRENCHIE) study.

Arch Cardiovasc Dis

June 2024

Department of Clinical Pharmacology and Clinical Research Platform of the East of Paris (URC-CRC-CRB), French Alliance for Cardiovascular Trials, Hôpital Saint-Antoine, AP-HP, Sorbonne University, 75012 Paris, France.

Background: Despite major advances in prevention and treatment, cardiovascular diseases - particularly acute myocardial infarction - remain a leading cause of death worldwide and in France. Collecting contemporary data about the characteristics, management and outcomes of patients with acute myocardial infarction in France is important.

Aims: The main objectives are to describe baseline characteristics, contemporary management, in-hospital and long-term outcomes of patients with acute myocardial infarction hospitalized in tertiary care centres in France; secondary objectives are to investigate determinants of prognosis (including periodontal disease and sleep-disordered breathing), to identify gaps between evidence-based recommendations and management and to assess medical care costs for the index hospitalization and during the follow-up period.

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[Developments in forensic medicine: the example of Haute-Normandie].

Rev Prat

April 2024

Ancien chef de service de médecine légale (IML-CASA) au CHU de Rouen, Rouen, France Professeur honoraire, Université de Rouen Rouen, France Membre titulaire de l'Académie des sciences, belles-lettres et arts de Rouen.

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Identifying the main physicochemical properties accounting for the course of a reaction is of utmost importance to rationalize chemical syntheses. To this aim, the relative energy gradient (REG) method is an appealing approach because it is an unbiased and automatic process to extract the most relevant pieces of energy information. Initially formulated within the interacting quantum atoms (IQA) framework for a single reaction, here we extend the REG method to natural bond orbitals (NBO) analysis and to the case of two competitive processes.

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COVID-19 associated pulmonary aspergillosis in critically-ill patients: a prospective multicenter study in the era of Delta and Omicron variants.

Ann Intensive Care

April 2024

Médecine Intensive Réanimation, Hôpitaux Universitaires Henri Mondor, Assistance Publique-Hôpitaux de Paris (AP-HP), CHU Henri Mondor, 51, Av. de Lattre de Tassigny, CEDEX, 94010, Créteil, France.

Article Synopsis
  • This study investigates COVID-19-associated pulmonary aspergillosis (CAPA) among critically ill patients during the Omicron variant wave, finding it affects 5.1% of patients and 9.1% of those on invasive mechanical ventilation.
  • CAPA patients showed higher rates of immunosuppression and required more intensive care measures, like vasopressors and renal therapy, compared to non-CAPA patients.
  • While CAPA did not significantly impact day-28 mortality, it was linked to longer mechanical ventilation and ICU stays, suggesting a shift in outcomes with emerging SARS-CoV-2 variants.
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[The reversible share of cognitive deficits in older adults].

Geriatr Psychol Neuropsychiatr Vieil

March 2024

Université de Franche-Comté, UMR Inserm 1322 LINC, Besançon, France, Maison des sciences de l'homme et de l'environnement (MSHE) Ledoux (UAR 3124), Université de Franche-Comté, Besançon, France, Centre de recherche sur les fonctionnements et dysfonctionnements psychologiques (CRFDP, EA 7475), Université de Rouen Normandie, France.

Cognitive performance of older adults is very often inferior to that of younger adults on a variety of laboratory tests assessing basic functions such as memory, inhibition, or attention. Classic hypotheses and theories share the idea that these cognitive deficits are irreversible, due to profound cerebral changes. In this review article, we develop a more positive conception of aging, according to which cognitive deficits are not all irreversible, and can even be partially if not completely reversible.

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Promoting emotional and behavioral interventions in ASD treatment: Evidence from EPIGRAM, A naturalistic, prospective and longitudinal study.

Res Dev Disabil

April 2024

Groupe Hospitalo-Universitaire Pitié-Salpêtrière, APHP. SU, Paris, France; Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7222, Institut des Systèmes Intelligents et Robotiques, Sorbonne Université, Paris, France. Electronic address:

Background: Prognostic factors from naturalistic treatment studies of children with Autism Spectrum Disorder (ASD) remain largely unknown. We aimed to identify baseline and treatment-related prognostic predictors at 1-year follow-up after Integrative Care Practices (ICPs).

Methods: Eighty-nine preschool children with severe ASD were given ICP combining nine therapeutic workshops based on children's needs.

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Herein we describe a sustainable and efficient photocatalytic method for the stereoselective radical alkylation of chiral sulfinyl imines. By employing readily available non-prefunctionalized radical precursors and the cost-effective TBADT as a direct HAT photocatalyst, we successfully obtain diverse chiral amines with high yields and excellent diastereoselectivity under mild conditions. This method provides an efficient approach for accessing a diverse array of medicinally relevant compounds, including both natural and synthetic α-amino acids, aryl ethyl amines, and other structural motifs commonly found in approved pharmaceuticals and natural product.

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