5,423 results match your criteria: "Universite Clermont Auvergne[Affiliation]"

Photochemical reactions of biomass derived platform chemicals.

Front Chem

December 2024

Biomolécules: Conception, Isolement et Synthèse (BioCIS), UMR CNRS 8076, Université Paris-Saclay, Orsay, France.

Platform chemicals obtained from biomass will play an important role in chemical industry. Already existing compounds or not yet established chemicals are produced from this renewable feedstock. Using photochemical reactions as sustainable method for the conversion of matter furthermore permits to develop processes that are interesting from the ecological and economical point of view.

View Article and Find Full Text PDF

Background: Human intestinal parasitosis and microsporidiosis are a global health concern, mostly in endemic areas but should not be neglected elsewhere. Recent nationwide epidemiological data are scarce, especially from primary health care and developed countries. Diagnosis by molecular tools are increasing and several commercial gastrointestinal panel assays including protozoans and/or helminths are now available.

View Article and Find Full Text PDF

Monitoring opioid analgesic misuse, abuse and dependence: What to the data from addictovigilance tell us about the situation in France?

Therapie

December 2024

Service de pharmacologie médicale et clinique, centre d'évaluation et d'information sur la pharmacodépendance - addictovigilance, hôpitaux de Toulouse, université de Toulouse, 31000 Toulouse, France.

The opioid epidemic has emerged in the USA in the late 1990s and widespread to Canada, Australia, and the UK to a lesser extent in the more recent years. At the European level, several studies performed in different European countries have highlighted that prescription opioid use increased substantially over the last decade, and several proxies for misuse show a parallel increasing trend. The French addictovigilance experience on opioid analgesics is a good example of a specific dedicated monitoring, taking into account in a global and multisource perspective, patterns of utilization, population involved in problematic use, ways of acquisition and health complications.

View Article and Find Full Text PDF

What is the lower limb length discrepancy after arthroplasty for proximal femoral fracture? A prospective, multicenter observational study of 590 hips.

Orthop Traumatol Surg Res

December 2024

Société Française de Chirurgie Orthopédique et Traumatologique, 56 rue Boissonade, 75014 Paris Cedex, France.

Introduction: Lower limb length discrepancy (LLD) following hip arthroplasty after proximal femoral fracture (PFFA) is little studied. The aim of this work was to answer the following questions: 1) What are the incidence and mean values ​​of LLD after PFFA? 2) What are the clinical consequences (tolerance) of LLD after PFFA? 3) Can we identify risk factors for LLD after PFFA? 4) Is there a significant difference in terms of LLD after PFFA to treat intra- versus extra-capsular fractures?

Hypothesis: LLD after proximal femoral fracture arthroplasty is rare but has good clinical tolerance, given the low functional demands of the patients.

Patients And Methods: This is a multicenter prospective observational cohort study (15 centers), including 590 patients, operated on for hip arthroplasty for proximal femur fracture between May 2022 and June 2023.

View Article and Find Full Text PDF

Greenhouse gas (GHG) emissions from livestock ruminants, particularly methane (CH), nitrous oxide, and indirectly ammonia (NH) significantly contribute to climate change and global warming. Conventional monoculture swards for cattle feeding, such as perennial ryegrass or Italian ryegrass, usually require substantial fertiliser inputs. Such management elevates soil mineral nitrogen levels, resulting in GHG emissions and potential water contamination.

View Article and Find Full Text PDF

Objectives: To assess the prevalence of comorbidities and management of cardiovascular risk factors according to established guidelines for patients with hand osteoarthritis.

Methods: A cross-sectional study was conducted that included 110 hand osteoarthritis patients. The clinical parameters (pain, function, grip strength, quality of life, sarcopenia, and comorbidities) were assessed along with cardiovascular (CV) risk factors (blood pressure, body mass index, and dyslipidaemia).

View Article and Find Full Text PDF

[Luspatercept as first line in transfusion-dependant very low to intermediate risk myelodysplastic syndromes].

Bull Cancer

December 2024

Service de thérapie cellulaire et d'hématologie clinique adulte, CHU Clermont-Ferrand, site Estaing, 63100 Clermont-Ferrand, France; Université Clermont Auvergne, 63000 Clermont-Ferrand, France.

View Article and Find Full Text PDF

The increasing presence of emerging pollutants (EPs) in water poses significant environmental and health risks, necessitating effective treatment solutions. Originating from industrial, agricultural, and domestic sources, these contaminants threaten ecological and public health, underscoring the urgent need for innovative and efficient treatment methods. TiO-based semiconductor photocatalysts have emerged as a promising approach for the degradation of EPs, leveraging their unique band structures and heterojunction schemes.

View Article and Find Full Text PDF

The metabolism of phytoplankton cells is synchronized with the diel light cycle. Likewise, associated heterotrophic bacteria adjust their diel expression of transporter- and catabolism-related genes to target the dissolved organic matter released by the phytoplankton cell. Dissolved combined carbohydrates (DCCHO) and dissolved amino acids (DAA) are major phytoplankton products and bacterial substrates.

View Article and Find Full Text PDF

Background: Septoria tritici blotch (STB) is one of the most damaging wheat diseases worldwide, and the development of resistant cultivars is of paramount importance for sustainable crop management. However, the genetic basis of the resistance present in elite wheat cultivars remains largely unknown, which limits the implementation of this strategy. A collection of 285 wheat cultivars originating mostly from France was challenged with ten Zymoseptoria tritici isolates at the seedling stage.

View Article and Find Full Text PDF

Consensus on the Structure and Content of Birth Plans: A Modified Delphi Study.

Health Expect

December 2024

Université Clermont Auvergne, Clermont Auvergne INP, CHU Clermont-Ferrand, CNRS, Institut Pascal, Clermont-Ferrand, France.

Background: Few pregnant women in France wrote birth plans as in many other countries. The literature stresses the heterogeneity of birth plan content, which limits the utility of assessing the effects of birth plans on women's experience of childbirth. This study aimed to obtain a French national consensus on the structure and content of birth plans.

View Article and Find Full Text PDF

Homologous recombination deficiency in ovarian cancer: Global expert consensus on testing and a comparison of companion diagnostics.

Eur J Cancer

December 2024

Department of Medical Oncology, Institut régional du Cancer de Montpellier (ICM), Montpellier, France; Société Française de Médecine Prédictive et Personnalisée (SFMPP), Montpellier, France; Center for Ecological and Evolutionary Cancer Research (CREEC), Montpellier University, Montpellier, France. Electronic address:

Background: Poly (ADP ribose) polymerase inhibitors (PARPis) are a treatment option for patients with advanced high-grade serous or endometrioid ovarian carcinoma (OC). Recent guidelines have clarified how homologous recombination deficiency (HRD) may influence treatment decision-making in this setting. As a result, numerous companion diagnostic assays (CDx) have been developed to identify HRD.

View Article and Find Full Text PDF

A wide range of animals, including a number of bird, fish, mammal and reptile species, show sex differences in cognitive tests. Hardly anything is known, however, about whether and how sex-specific non-cognitive factors (e.g.

View Article and Find Full Text PDF

Cross-sectional study of partners' tobacco consumption during their spouse's pregnancy.

Eur J Gen Pract

December 2025

Département de Médecine Générale, Université Clermont Auvergne, UFR de Médecine et des Professions Paramédicales, Clermont-Ferrand, France.

Background: A smoking partner is a major risk factor for passive smoking and continued maternal smoking.

Objective: To assess the smoking habits, knowledge, and information received to stop smoking of smoking partners during their spouse's pregnancy.

Method: This was a cross-sectional study of partners who smoked at the start of pregnancy and whose spouses had just given birth.

View Article and Find Full Text PDF

Background And Aims: Nolana mollis is a dominant plant species in the hyperarid Atacama Desert. A previous hypothesis states that N. mollis owes its success to the condensation of atmospheric water from undersaturated air onto its leaf surfaces by exuded salts, and absorption of this water by its leaves, or by shallow roots following drip onto the soil surface; living roots of N.

View Article and Find Full Text PDF

The use of neutron reflectors is an effective method for improving the quality of neutron sources and neutron delivery systems. In this work, we further develop the method based on the Bragg scattering of neutrons in crystals with large interplanar distances. We compare samples of differently prepared fluorine intercalated graphites by measuring the total cross section for the interaction of neutrons with the samples, depending on the neutron wavelength.

View Article and Find Full Text PDF

Hibernating mammals experience severe hemodynamic changes over the torpor-arousal cycle, with oxygen consumption reaching peaks during the early stage of torpor to re-enter arousal. Melatonin (MT) can improve mitochondrial function and reduce oxidative stress and inflammation. However, the regulatory mechanisms of MT action on the vascular protective function of hibernators are still unclear.

View Article and Find Full Text PDF

Enteric Methane Emission from Cattle Grazing Systems with Cover Crops and Legume-Grass Pasture.

Animals (Basel)

December 2024

Unidad de Investigación y Desarrollo de las Ingenierías, Facultad Regional Buenos Aires, Universidad Tecnológica Nacional, Ciudad Autónoma Buenos Aires C1179AAQ, Argentina.

This study aims to quantify enteric methane (CH) emission and dry matter intake (DMI) in beef steers under two rotational grazing systems: (i) a mixture of cover crops (vetch + ryegrass + forage radish) (CC) and (ii) alfalfa and fescue pasture (AFP). Eighteen Hereford steers were divided into two groups (nine steers per group), assigned to either the CC or AFP. Methane emissions were measured using the SF tracer technique.

View Article and Find Full Text PDF

(S)-Indoline-2-carboxylic acid (H-(2S)-Ind-OH) possesses the ability to influence the conformation of peptide bonds towards the cis amide isomer in polar solvents. However, its potential utilization as a conformational switch within long peptide sequences poses challenges due to its low reactivity and strong inclination to form diketopiperazines. The present study explores its reactivity under various conditions and proposes synthetic strategies to overcome these limitations.

View Article and Find Full Text PDF

Carbonaceous aerosols (CA), composed of black carbon (BC) and organic matter (OM), significantly impact the climate. Light absorption properties of CA, particularly of BC and brown carbon (BrC), are crucial due to their contribution to global and regional warming. We present the absorption properties of BC (b) and BrC (b) inferred using Aethalometer data from 44 European sites covering different environments (traffic (TR), urban (UB), suburban (SUB), regional background (RB) and mountain (M)).

View Article and Find Full Text PDF

Polygenic and Polyenvironment Interplay in Schizophrenia-Spectrum Disorder and Affective Psychosis; the EUGEI First Episode Study.

Schizophr Bull

December 2024

Social, Genetics and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom.

Background: Multiple genetic and environmental risk factors play a role in the development of both schizophrenia-spectrum disorders and affective psychoses. How they act in combination is yet to be clarified.

Methods: We analyzed 573 first episode psychosis cases and 1005 controls, of European ancestry.

View Article and Find Full Text PDF

The COVID-19 pandemic, driven by SARS-CoV-2, led authorities to recommend halting assisted reproductive technology programs, focusing instead on fertility preservation, for cancer patients. The presence of SARS-CoV-2 in semen remains controversial. This multicentric prospective cohort study, conducted across 12 university medical centers, aimed to determine if SARS-CoV-2 is present in spermatozoa/seminal plasma in cancer patients by RT-PCR and to assess its impact on standard semen parameters.

View Article and Find Full Text PDF

Introduction: Traditionally, to determine a length on a limb radiograph after total hip arthroplasty (THA), calibration is performed manually with the diameter of a ball or the femoral head. More recently, the development of EOS with automatic calibration has called into question the usefulness of manual calibration to highlight lower limb length inequality (LLLI). However, the validation of EOS with automatic calibration without landmarks to measure length inequalities on large images has not been verified against manual measurements on calibrated radiographs (conventional method), which motivated the present work.

View Article and Find Full Text PDF