3,122 results match your criteria: "university of Toulouse[Affiliation]"

Background: Additional anterolateral ligament (ALL) reconstruction has been associated with improved clinical outcomes and reduced failure rates in anterior cruciate ligament (ACL) reconstruction. Despite the excellent clinical results reported, there is still a heated debate about its indications. Currently, the indications are mainly based on the patient's clinical criteria and not the imaging diagnosis of the injury of this ligament.

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Transitive inference, the ability to establish hierarchical relationships between stimuli, is typically tested by training with premise pairs (e.g., A + B-, B + C-, C + D-, D + E-), which establishes a stimulus hierarchy (A > B > C > D > E).

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Understanding the chemistry of the inert actinide oxo bond in actinyl ions AnO22+ is important for controlling actinide behavior in the environment, during separations, and in nuclear waste (An = U, Np, Pu). The thioether calixarene TC4A (4-tert-butyltetrathiacalix[4]arene) binds equatorially to [AnO2]n+ (An = U, Np) forming a conical pocket that differentiates the two trans-oxo groups. The 'ate' complexes, [A]2[UO2(TC4A)] (A = [Li(DME)2], HNEt3) and [HNEt3]2[NpO2(TC4A)], enable selective oxo chemistry.

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Delamination of chick cephalic neural crest cells requires an MMP14-dependent downregulation of Cadherin-6B.

Differentiation

January 2025

Molecular, Cellular and Developmental Biology Department (MCD), Centre de Biologie Integrative (CBI), University of Toulouse, CNRS, UPS, 31062, Toulouse, France. Electronic address:

Matrix Metalloproteinases (MMPs) are known for their role in matrix remodeling via their catalytic activities in the extracellular space. Interestingly, these enzymes can also play less expected roles in cell survival, polarity and motility via other substrates (e.g.

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Aims: Thermogenic adipocytes are able to dissipate energy as heat from lipids and carbohydrates through enhanced uncoupled respiration, due to UCP1 activity. PPAR family of transcription factors plays an important role in adipocyte biology. The purpose of this work was to characterize the role of PPARα and pemafibrate in the control of thermogenic adipocyte formation and function.

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In vitro and animal studies have suggested that inoculation with herpes simplex virus 1 (HSV-1) can lead to amyloid deposits, hyperphosphorylation of tau, and/or neuronal loss. Here, we studied the association between HSV-1 and Alzheimer's disease biomarkers in humans. Our sample included 182 participants at risk of cognitive decline from the Multidomain Alzheimer Preventive Trial who had HSV-1 plasma serology and an amyloid PET scan.

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Introduction: It is unknown in which, if any, subgroups of older adults multidomain interventions are effective at reducing long-term dementia incidence.

Methods: We pooled up to 12 years of follow-up data from 5205 participants aged > 70 from the Multidomain Alzheimer Preventive Trial (MAPT) and Prevention of Dementia by Intensive Vascular Care (preDIVA) studies. The primary outcome was incident all-cause dementia.

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Purpose: Arthrogenic muscle inhibition (AMI) is a reflexive shutdown of the quadriceps muscles following a knee injury or surgery that presents with or without hamstring contracture. This complication can be classified according to the SANTI classification, but the reproducibility of this clinical classification has not yet been demonstrated.

Methods: This single-centre longitudinal observational study included 140 patients who were within 6 weeks of an ACL rupture.

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The Drosophila visual system is a powerful model to study the development of neural circuits. Lobula columnar neurons-LCNs are visual output neurons that encode visual features relevant to natural behavior. There are ~20 classes of LCNs forming non-overlapping synaptic optic glomeruli in the brain.

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Beyond equilibrium: roles of RNAs in condensate control.

Curr Opin Genet Dev

January 2025

MCD, Center for Integrative Biology (CBI), University of Toulouse, CNRS, Toulouse, France. Electronic address:

Membraneless subcompartments organize various activities in the cell nucleus. Some of them are formed through phase separation that is driven by the polymeric and multivalent nature of biomolecules. Here, we discuss the role of RNAs in regulating nuclear subcompartments.

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Our objectives were to explore epidermal barrier defects in dogs with atopic dermatitis and to determine whether the defects are genetically determined or secondary to skin inflammation. First, the expression of filaggrin, corneodesmosin, and claudin1, analyzed using indirect immunofluorescence in skin biopsies collected from 32 healthy and 32 dogs with atopic dermatitis, was weaker in the atopic skin ( .003).

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Mice with genetic ablation of PI3Kγ are protected from diet-induced obesity. However, the cell type responsible for PI3Kγ action in obesity remains unknown. We generated mice with conditional deletion of PI3Kγ in neurons using the nestin promoter to drive the expression of the Cre recombinase (PI3Kγ mice) and investigated their metabolic phenotype in a model of diet-induced obesity.

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Measuring the consumption of processed foods made from a common raw agricultural ingredient requires to make quantities comparable, by converting them in raw product equivalent. This conversion also allows to compute total quantities. In the case of legumes, the challenge is to take into account a wide diversity of final products including packaged dry legumes, processed legumes and products cooked from legumes and other ingredients.

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Numerous studies have reported benefits of music listening to support learning and motor rehabilitation. In the case of handwriting, previous studies suggested that musical background improves movement speed and fluency. Whether this benefit comes from the melody or is specifically related to the rhythmic cues provided by the music remains to be established.

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Background: The identification of new biomarkers that improve existing cardiovascular risk prediction models for acute coronary syndrome is essential for accurately identifying high-risk patients and refining treatment strategies. Autophagy, a vital cellular degradation mechanism, is important for maintaining cardiac health. Dysregulation of autophagy has been described in cardiovascular conditions such as myocardial ischemia-reperfusion injury, a key factor in myocardial infarction (MI).

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Plants in space face unique challenges, including chronic ionizing radiation and reduced gravity, which affect their growth and functionality. Understanding these impacts is essential to determine the cultivation conditions and protective shielding needs in future space greenhouses. While certain doses of ionizing radiation may enhance crop yield and quality, providing "functional food" rich in bioactive compounds, to support astronaut health, the combined effects of radiation and reduced gravity are still unclear, with potential additive, synergistic, or antagonistic interactions.

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Protective immune responses require close interactions between conventional (Tconv) and regulatory T cells (Treg). The extracellular mediators and signaling events that regulate the crosstalk between these CD4 T cell subsets have been extensively characterized. However, how Tconv translate Treg-dependent suppressive signals at the chromatin level remains largely unknown.

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Background: Catechol-O-methyl transferase (COMT) inhibitors are routinely used to manage motor fluctuations in Parkinson's disease (PD). We assessed the effect of opicapone on motor symptom severity in levodopa-treated patients without motor complications.

Methods: This was a randomized, double-blind, 24-week, placebo-controlled study of opicapone 50 mg as adjunct to levodopa (NCT04978597).

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Background And Purpose: Working memory, a primary cognitive domain, is often impaired in pediatric brain tumor survivors, affecting their attention and processing speed. This study investigated the long-term effects of treatments, including surgery, radiotherapy (RT), and chemotherapy (CT), on working memory tracts in children with posterior fossa tumors (PFTs) using resting-state functional MRI (rs-fMRI) and diffusion MRI tractography.

Methods: This study included 16 medulloblastoma (MB) survivors treated with postoperative RT and CT, 14 pilocytic astrocytoma (PA) survivors treated with surgery alone, and 16 healthy controls from the Imaging Memory after Pediatric Cancer in children, adolescents, and young adults study (NCT04324450).

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Factors behind poor cognitive outcome following a thalamic stroke.

J Neurol

January 2025

Brain and Cognition Research Center, (CerCo-UMR 5549), CNRS, University of Toulouse, Toulouse, France.

Background: Thalamic strokes produce neurological, cognitive, and behavioral symptoms depending on the thalamic nuclei involved. While traditionally associated with severe cognitive deficits, recent studies suggest more modest impairments. This study aims to identify the factors that influence the severity of cognitive impairment following thalamic stroke.

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The development of ion-sensitive field-effect transistor (ISFET) sensors based on silicon nanowires (SiNW) has recently seen significant progress, due to their many advantages such as compact size, low cost, robustness and real-time portability. However, little work has been done to predict the performance of SiNW-ISFET sensors. The present study focuses on predicting the performance of the silicon nanowire (SiNW)-based ISFET sensor using four machine learning techniques, namely multilayer perceptron (MLP), nonlinear regression (NLR), support vector regression (SVR) and extra tree regression (ETR).

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Rhodixan A1 is the trade name for -ethyl -(1-methoxycarbonylethyl)dithiocarbonate, a RAFT/MADIX agent used by Syensqo to produce block copolymer additives for aqueous formulations on an industrial scale. Chain transfer coefficients to Rhodixan A1 determined for 25 different styrenic, acrylate, and acrylamide monomers were relatively low (0.6 < C < 3.

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This article presents data measured in 44 farms covering a range of cropping practices, soil, and production parameters under contrasted types of crop management: conventional and conservation agriculture. Eighty-six winter wheat fields in Northwestern France were monitored for two growing seasons (2021-2023). The dataset encompasses data about cropping practices (tillage, soil cover, rotation, pesticide use, nutrition), soils (chemical, biological, and physical parameters, including texture), and grain production (nutritional, technological, and sanitary indicators).

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Sex-specific associations of neurodegeneration and inflammatory biomarkers with intrinsic capacity in older adults: Findings from the 4-year longitudinal Multidomain Alzheimer's Prevention Trial (MAPT).

Maturitas

January 2025

Institut du Vieillissement, Gérontopôle de Toulouse, Centre Hospitalo-Universitaire de Toulouse, 37 allées Jules Guesde, 31000 Toulouse, France; Institut Hospitalo-Universitaire HealthAge, Cité de la Santé, Place Lange, 31059 Toulouse, France; UMR INSERM, 1295 University of Toulouse III and Faculté de Médecine, 118 Rte de Narbonne, 31062 Toulouse, France.

This four-year longitudinal study investigated whether the cross-sectional and longitudinal associations of inflammation-related and neurodegenerative-related blood biomarkers with intrinsic capacity differ according to sex. The sample comprised 1117 older adults (<70 years, 63.8 % females) from the Multidomain Alzheimer's Prevention Trial (MAPT).

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Novel ABCA12 Missense Variant in a Patient with Congenital Ichthyosis and Palmoplantar Keratoderma.

Acta Derm Venereol

January 2025

Infinity, University of Toulouse, CNRS, Inserm, UPS, Toulouse, France; CHU Toulouse, Purpan hospital, laboratory of cell biology and cytology, Federal Institute of Biology, Toulouse, France.

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