14,364 results match your criteria: "Univ. Paris[Affiliation]"

Background: To examine the psychometrics properties of the French version of two scales measuring general (HLS-Q12) and navigational (HLS-NAV) health literacy (HL) using validation methods based on modern psychometric test theories: a Rasch model analysis.

Methods: The data on representative samples of the French adult population came from the Health Literacy Survey (N = 2 003), conducted in France in two waves (2020 and 2021), and from the third wave of SLAVACO study (N = 2 022), conducted in December 2021. A Rasch analysis was performed using a partial credit model with marginal maximum likelihood estimation adapted to polytomous data.

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  • A study investigated how the antioxidant capacity and inflammation potential of maternal diets during the last three months of pregnancy could influence the risk of allergic and respiratory diseases in children.
  • Researchers analyzed data from 9,679 mother-child pairs, measuring the dietary antioxidant capacity and inflammatory potential using various indices.
  • Results indicated that a diet high in antioxidants was linked to a lower risk of 'early wheeze without asthma,' while a pro-inflammatory diet correlated with a higher risk of 'asthma only,' suggesting maternal diet impacts children's respiratory health to some extent.
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Self-Assembly of Chiral Ligands on 2D Semiconductor Nanoplatelets for High Circular Dichroism.

J Am Chem Soc

November 2024

Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université UPMC Univ Paris 06, CNRS, 10 rue Vauquelin, 75005 Paris, France.

Group II-VI semiconductor nanoplatelets (NPLs) with atomically defined thicknesses and extended atomically flat (001) facets are used for ligand binding and chiro-optical effects. In this study, we demonstrate that tartrate ligands, anchored by two carboxylate groups, chelate the (001) facets of NPLs at an average ratio of one tartrate molecule to two cadmium (Cd) surface atoms. This assembly of chiral molecules on inorganic nanocrystals generates a circular dichroism -factor as high as 1.

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Associations of exposure to outdoor PM and NO during pregnancy with childhood asthma, rhinitis, and eczema in a predominantly rural French mother-child cohort.

Environ Pollut

December 2024

Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail), UMR_S 1085, F-35000, Rennes, France. Electronic address:

Article Synopsis
  • The study explores how outdoor air pollution, specifically fine particulate matter (PM) and nitrogen dioxide (NO), affects childhood diseases like asthma, rhinitis, and eczema, especially in rural areas where the effects are less understood.
  • It utilized data from the Pélagie mother-child cohort in Brittany, France, analyzing 1322 children at age 6 and 1118 at age 12 to assess the prevalence of these diseases and their coexistence (multimorbidity).
  • Results indicated a tendency for PM and NO to associate with the diseases, particularly in urban areas, highlighting the need for further research on the differing impacts of air pollution in urban versus rural environments.
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  • - The study investigates the link between urban living conditions (urbanicity) and schizotypy, a potential precursor to psychosis, suggesting this relationship varies significantly between North-western and Southern Europe.
  • - Researchers assessed 1080 individuals across 14 sites in both regions, measuring urbanicity through local population density and controlling for factors like age and childhood experiences.
  • - Findings reveal that higher population density is strongly associated with increased schizotypy in North-western Europe, while the effect is notably weaker in Southern Europe, indicating that urbanization’s impact on mental health is not uniform across different contexts.
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The microwave spectrum of 2,3-dimethylfuran was investigated using a Fourier-transform microwave spectrometer under supersonic expansion. The molecule possesses two inequivalent methyl internal rotors, causing the splitting of each rotational transition into five torsional species. A total of 337 torsional transitions were assigned and fitted in a global fit with the program XIAM, where accurate and physically meaningful geometry and internal rotation parameters could be deduced.

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  • - The study investigates how ecology and social factors influence cognitive skills in primates by examining the size of specific brain regions related to metacognition and working memory in 16 primate species.
  • - Researchers found the volume of the frontal pole (FP) and dorso-lateral prefrontal cortex (DLPFC) is significantly related to body size, daily travel distance, and population density, indicating both ecological and social constraints play a role in cognitive evolution.
  • - The results suggest that ecological factors primarily drive brain region size, while social factors more strongly affect the FP, highlighting the importance of foraging and social interactions in the cognitive development of primates.
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A comprehensive study of AFM stiffness measurements on inclined surfaces: theoretical, numerical, and experimental evaluation using a Hertz approach.

Sci Rep

October 2024

INSERM, U955 IMRB, "Biology of the Neuromuscular System" Team, Univ Paris-Est Créteil, 94010, Créteil, France.

Atomic Force Microscopy (AFM) is a leading nanoscale technique known for its significant advantages in the analysis of soft materials and biological samples. Traditional AFM data analysis is often based on the Hertz model, which assumes perpendicular indentation of a planar sample. However, this assumption is not always valid due to the varying geometries of soft materials, whether natural, synthetic or biological.

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Shock is a life-threatening condition. This study evaluated if sublingual microcirculatory perfusion on admission is associated with 30-day mortality in older intensive care unit (ICU) shock patients. This trial prospectively recruited ICU patients (≥ 80 years old) with arterial lactate above 2 mmol/L, requiring vasopressors despite adequate fluid resuscitation, regardless of shock cause.

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Objectives: Allergic bronchopulmonary aspergillosis (ABPA) is a complex lung disease associated with significant morbidity. The ABPA Working Group (AWG) of the International Society for Human and Animal Mycology (ISHAM) revised their management guidelines in 2024, but there is currently no standardised tool to assess adherence to these recommendations.

Methods: We extracted key recommendations from the updated 2024 ISHAM-AWG guidelines, focusing on critical areas: screening and diagnosis of ABPA, managing acute and treatment-dependent ABPA, and monitoring treatment response.

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Major Depressive Disorder (MDD) is the leading cause of disability worldwide. Genetic factors influence the effect of its main treatment option, antidepressant drugs (ATD). The GRIK4 rs1954787(T>C) genetic polymorphism was associated with response following 1-3 months of ATD treatment in some studies, but not others.

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We present new satellite-based daily observations of the 3D distribution of aerosols from most common types and origins, both over land and ocean, derived from TROpospheric Ozone Monitoring Instrument (TROPOMI) measurements. This is done using the so-called AEROS5P (AEROsol Sentinel 5 Precursor) approach which retrieves vertical profiles of aerosol extinction from passive measurements of high-resolution spectral reflectance in the visible and near infrared for cloud-free conditions. Previous work demonstrated the potential of this approach, but it was initially applicable only to biomass burning aerosols with limited spatial coverage over ocean.

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Dissecting the association between long COVID and depressive symptoms in a nationally representative population from France.

J Psychosom Res

December 2024

Service de Psychiatrie de l'adulte, AP-HP, Hôpital Hôtel-Dieu, F-75004 Paris, France; Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), F-75004 Paris, France. Electronic address:

Article Synopsis
  • The study compares the prevalence of depressive symptoms between individuals infected with SARS-CoV-2, with a focus on those experiencing long COVID.
  • Data was collected from a representative sample of adults through phone interviews, analyzing various factors, including current symptoms and depressive scores measured by PHQ-9.
  • Results show that individuals with long COVID are significantly more likely to exhibit depressive symptoms, particularly around feeling uninterested, fatigued, and having difficulty concentrating.
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The photodissociation of molecules is becoming an increasingly important factor to consider in the evolution of exoplanets' atmospheres orbiting around UV-rich stars, as it leads to the enrichment of atmospheric complexity. A new method is developed for computing the rotationally and vibrationally resolved photodissociation spectrum of triatomic molecules. The time-independent Schrödinger equation is solved using the variational nuclear motion program EVEREST; a new code EXOCSMOOTH is employed to compute the cross-sections by applying Gaussian smoothing to a set of discrete transitions into the continuum.

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Background: Despite scarce data, invasive mechanical ventilation (MV) is widely suggested as first-line ventilatory support in cardiogenic shock (CS) patients. We assessed the real-life use of different ventilation strategies in CS and their influence on short and mid-term prognosis.

Methods: FRENSHOCK was a prospective registry including 772 CS patients from 49 centers in France.

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UVB radiation suppresses Dicer expression through β-catenin.

J Cell Sci

November 2024

Institut Curie, PSL Research University, INSERM U1021, Normal and Pathological Development of Melanocytes, 91405 Orsay, France.

Ultraviolet (UV) rays prompt a natural response in epidermal cells, particularly within melanocytes. The changes in gene expression and related signaling pathways in melanocytes following exposure to UV radiation are still not entirely understood. Our findings reveal that UVB irradiation suppresses the expression of Dicer (also known as Dicer1).

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During focal ischemia, neurons can use lactate as an alternative source of energy through its oxidation into pyruvate by the lactate dehydrogenase (LDH). After cardiac arrest, the neurological consequences of this phenomenon are unknown. Experimental study.

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The ribosome profiling landscape of yeast reveals a high diversity in pervasive translation.

Genome Biol

October 2024

Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, Cedex, 91198, France.

Background: Pervasive translation is a widespread phenomenon that plays a critical role in the emergence of novel microproteins, but the diversity of translation patterns contributing to their generation remains unclear. Based on 54 ribosome profiling (Ribo-Seq) datasets, we investigated the yeast Ribo-Seq landscape using a representation framework that allows the comprehensive inventory and classification of the entire diversity of Ribo-Seq signals, including non-canonical ones.

Results: We show that if coding regions occupy specific areas of the Ribo-Seq landscape, noncoding regions encompass a wide diversity of Ribo-Seq signals and, conversely, populate the entire landscape.

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Urban areas concentrate on human activities that generate large amounts of waste. A small fraction is mismanaged and ends up on urban surfaces and eventually in waterways. The fraction reaching waterways is usually estimated using poorly constrained data, while litter density on urban surfaces and its subsequent transfer dynamics are also poorly documented.

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Pallidal neuronal activity in Gilles de la Tourette syndrome and dystonic patients: A comparative study.

Eur J Neurosci

November 2024

Inserm 1127, Sorbonne Université, UPMC Univ Paris 06, UMRS 1127, CNRS, UMR 7225, Paris Brain Institute, Paris, France.

Article Synopsis
  • * It found that GTS patients exhibited higher firing rates and burst activity, while DYS patients showed more pauses and burst frequency, highlighting distinct neuronal activity patterns between the two disorders.
  • * The research suggests a need for further studies on neuronal behavior in the GPi to improve DBS techniques and tailor treatments for better clinical outcomes in patients with hyperkinetic movement disorders.
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Drosophila glue, a bioadhesive produced by fly larvae to attach themselves to a substrate for several days, has recently gained attention for its peculiar adhesive and mechanical properties. Although Drosophila glue production was described more than 50 years ago, a general survey of the adhesive and mechanical properties of this proteinaceous gel across Drosophila species is lacking. To measure adhesion, we present here a protocol that is robust to variations in protocol parameters, pupal age and calculation methods.

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Changes in household use of disinfectant and cleaning products during the first lockdown period in France.

BMC Public Health

October 2024

Université Paris-Saclay, UVSQ, Univ. Paris-Sud, Inserm, Equipe d'Epidémiologie Respiratoire Intégrative, CESP, Villejuif, 94807, France.

Background: Few studies evaluated the use of Household Disinfectant and Cleaning Products (HDCPs) during the COVID-19 pandemic, but no population-based cohorts used longitudinal data. We studied changes in HDCPs during the first lockdown, based on longitudinal data from the French population-based NutriNet-Santé and CONSTANCES cohorts.

Methods: Based on standardized questionnaires on household cleaning tasks in 2018-2019 and around the first lockdown in France (March17-May3 2020), we compared the duration of weekly use of HDCPs (< 1 day/week, < 10 min/week; 10-30 min/week; > 30 min/week) and the household cleaning help (yes/no) before and during the lockdown period by Bhapkar and McNemar's tests.

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  • Becker muscular dystrophy (BMD) is a less severe X-linked genetic disorder caused by mutations in the DMD gene, resulting in truncated dystrophin and affecting muscle function, particularly in the heart.
  • Researchers created a rat model for BMD by deleting specific exons of the Dmd gene and evaluated the rats for functional and histopathological changes during their first year, finding moderate muscle damage and progressive heart disease.
  • RNA sequencing of cardiac tissue revealed shared abnormalities in BMD and Duchenne muscular dystrophy (DMD) rats, pointing to issues with key proteins at cell junctions, which could help understand dystrophin's role in muscle and heart function, and pave the way for new treatments.
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