113,959 results match your criteria: "Lyon; and Universite de Lyon-Universite Claude Bernard Lyon 1 J.H.[Affiliation]"

Infection Reinforces the Defense Reactions in - Roots to the Detriment of Nodules.

Mol Plant Microbe Interact

January 2025

Université Claude Bernard Lyon 1, Laboratoire d'Écologie Microbienne, UMR CNRS 5557, UMR INRAE 1418, VetAgro Sup, Villeurbanne, France;

, able to establish symbiosis with mutualistic bacteria of the genus , is one of the main species in European riparian environments, where it performs numerous biological and socio-economic functions. However, riparian ecosystems face a growing threat from , a highly aggressive waterborne pathogen causing severe dieback in . To date, the tripartite interaction between the host plant, the symbiont and the pathogen remains unexplored but is critical for understanding how pathogen-induced stress influences the nodule molecular machinery and so on the host-symbiont metabolism.

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Sugars are ubiquitous in biology; they occur in all kingdoms of life. Despite their prevalence, they have often been somewhat neglected in studies of structure-dynamics-function relationships of macromolecules to which they are attached, with the exception of nucleic acids. This is largely due to the inherent difficulties of not only studying the conformational dynamics of sugars using experimental methods but indeed also resolving their static structures.

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Background: Ventricular tachycardia (VT) substrate characteristics before transcatheter pulmonary valve replacement (TPVR) in repaired tetralogy of Fallot (rTOF) are unknown.

Objectives: In this study, the authors sought to evaluate substrates for sustained monomorphic VT before TPVR in rTOF.

Methods: Retrospective (2017 to 2021) and prospective (commencing 2021) rTOF patients with native right ventricular outflow tract referred for electrophysiology study (EPS) before TPVR were included.

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ESMO Global Consortium Study on the availability, out-of-pocket costs, and accessibility of cancer medicines: 2023 update.

Ann Oncol

January 2025

Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Background: The availability and affordability of safe, effective cancer therapies are core requirements for effective cancer control. Global disparities exist in access, however, yielding unequal cancer outcomes. The goal of this study was to provide updated data regarding the formulary availability, out-of-pocket costs, and accessibility of cancer medicines in countries across the full spectrum of economic development areas.

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First in-human gadolinium K-edge imaging with spectral photon counting CT.

Diagn Interv Imaging

January 2025

Department of Cardiovascular and Thoracic Radiology, Hôpital Louis Pradel, Hospices Civils de Lyon, Lyon 69002, France; CREATIS, CNRS UMR 5220, INSERM U1206, INSA-Lyon, University Claude Bernard Lyon 1, Villeurbanne 69100, France.

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Transcatheter edge-to-edge mitral repair for secondary mitral regurgitation: New evidence, but many questions remain.

Arch Cardiovasc Dis

January 2025

Division of Cardiology, University of Ottawa Heart Institute, Ottawa, ON K1Y 4W7, Canada; School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada.

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Anatomical study of the posterior talofibular ligament: A descriptive analysis of its dual-bundle structure.

Foot Ankle Surg

January 2025

Department of Orthopaedics, Clinica del Remei, Barcelona, Spain; Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain. Electronic address:

Background: The lateral ankle ligament complex, consisting of the anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), and posterior talofibular ligament (PTFL), is essential for ankle stability. While the ATFL and CFL are frequently studied, the PTFL's role remains less explored.

Methods: Twelve fresh-frozen ankle specimens were dissected to analyze the PTFL's origin, trajectory, and talar insertion, focusing on its bundles and anatomical relationships.

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Chapter 10: WHAT PARATHYROID IMAGING IS REQUIRED FOR HYPERPARATHYROIDISM?

Ann Endocrinol (Paris)

January 2025

Endocrinology Federation, Hôpital Louis Pradel, 28 Avenue doyen Lépine, 69500 Bron, Hospices Civils de Lyon and Université Lyon 1, France. Electronic address:

In over 80% of cases, primary hyperparathyroidism results from hypersecretion of PTH by a single parathyroid adenoma. Multi-glandular involvement, combining adenoma and/or hyperplasia in varying proportions, is also possible, although less frequent. When the diagnosis of hyperparathyroidism is certain and surgery is envisaged, imaging is useful for locating the hyperfunctioning gland or glands.

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Chapter 3: IMPACT OF PRIMARY HYPERPARATHYROIDISM.

Ann Endocrinol (Paris)

January 2025

Hospices Civils de Lyon, Groupement Hospitalier Est, Endocrinology Federation, Lyon, France.

At present, primary hyperparathyroidism is most often discovered in an asymptomatic patient, but can sometimes be revealed by a renal or bone complications. In all cases, a full work-up is recommended, with assessment of renal function (glomerular filtration rate), 24-hour calciuria, screening for risk factors for lithiasis, and renal and urinary tract imaging (ultrasound or CT scan) to look for stones or nephrocalcinosis. Bone densitometry, with measurements of the spine, femur and radius, is the recommended reference test for demineralization.

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Emergence of green neurosurgery in France.

Neurochirurgie

January 2025

Department of Neurosurgery, GHU-Paris Psychiatrie et Neurosciences, Hôpital Sainte-Anne, F-75014 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266, IMA-Brain, F-75014 Paris, France.

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While biomass burning (BB) is the largest source of fine particles in the atmosphere, the influence of relative humidity (RH) and photochemistry on BB secondary organic aerosol (BB-SOA) formation and aging remains poorly constrained. These effects need to be addressed to better capture and comprehend the evolution of BB-SOA in the atmosphere. Cresol (CHO) is used as a BB proxy to investigate these effects.

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Medusa's gaze: Cell traces and fibrils but no collagen in permineralized Jurassic ichthyosaur bone.

iScience

January 2025

Abteilung Paläontologie, Bonner Institut für Organismische Biologie, Universität Bonn, 53115 Bonn, Germany.

Bone is formed by specialized cells whose activity allows bone to grow, change shape, and repair itself. Its composite structure of collagen fibrils and bioapatite nanocrystals gives bone exceptional mechanical strength. Using scanning electron microscopy, we show in fossil ichthyosaurs, 150 to 200 million years old, from the Jurassic of France and the UK, abundant and direct evidence of cellular activity on the fossilized forming, resting, and resorbing surfaces of bone trabeculae, as well as bone fibrils, Sharpey fibers, and cartilage fibers.

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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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Photochromic Sodalites: From Natural Minerals to Advanced Applied Materials.

Acc Chem Res

January 2025

Mineralogical Society of Antwerp, Boterlaarbaan 225, 2100 Deurne, Belgium.

ConspectusWhile photochromic natural sodalites, an aluminosilicate mineral, were originally considered as curiosities, articles published in the past ten years have radically changed this perspective. It has been proven that their artificial synthesis was easy and allowed compositional tuning. Combined with simulations, it has been shown that a wide range of photochromic properties were achievable for synthetic sodalites (color, activation energy, reversibility, etc.

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Combination of rapamycin and adipose-derived mesenchymal stromal cells enhances therapeutic potential for osteoarthritis.

Stem Cell Res Ther

January 2025

IRMB, Univ Montpellier, INSERM, CHU St Eloi, 80 AV A Fliche, 34295-Cedex-05, Montpellier, France.

Background: The regenerative potential of mesenchymal stromal/stem cells (MSCs) has been extensively studied in clinical trials in the past decade. However, despite the promising regenerative properties documented in preclinical studies, for instance in osteoarthritis (OA), the therapeutic translation of these results in patients has not been fully conclusive. One factor contributing to this therapeutic barrier could be the presence of senescent cells in OA joints.

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Exploring Brain Imaging and Genetic Risk Factors in Different Progression States of Alzheimer's Disease Through OSnetNMF-Based Methods.

J Mol Neurosci

January 2025

Bio-Med Big Data Center, CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.

Alzheimer's disease (AD) is a neurodegenerative disease with no effective treatment, often preceded by mild cognitive impairment (MCI). Multimodal imaging genetics integrates imaging and genetic data to gain a deeper understanding of disease progression and individual variations. This study focuses on exploring the mechanisms that drive the transition from normal cognition to MCI and ultimately to AD.

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While the cerebellum's role in orchestrating motor execution and routines is well established, its functional role in supporting cognition is less clear. Previous studies claim that motricity and cognition are mapped in different areas of the cerebellar cortex, with an anterior/posterior dichotomy. However, most of the studies supporting this claim either use correlational methods (neuroimaging) or are lesion studies that did not consider central covariates (such as age, gender, treatment presence, and deep nuclei impairment) known to influence motor and cognitive recoveries in patients.

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X-linked hypophosphataemia (XLH) is a rare metabolic bone disorder caused by pathogenic variants in the PHEX gene, which is predominantly expressed in osteoblasts, osteocytes and odontoblasts. XLH is characterized by increased synthesis of the bone-derived phosphaturic hormone fibroblast growth factor 23 (FGF23), which results in renal phosphate wasting with consecutive hypophosphataemia, rickets, osteomalacia, disproportionate short stature, oral manifestations, pseudofractures, craniosynostosis, enthesopathies and osteoarthritis. Patients with XLH should be provided with multidisciplinary care organized by a metabolic bone expert.

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Intranasally administrated fusion-inhibitory lipopeptides block SARS-CoV-2 infection in mice and enable long-term protective immunity.

Commun Biol

January 2025

CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France.

We have assessed antiviral activity and induction of protective immunity of fusion-inhibitory lipopeptides derived from the C-terminal heptad-repeat domain of SARS-CoV-2 spike glycoprotein in transgenic mice expressing human ACE2 (K18-hACE2). The lipopeptides block SARS-CoV-2 infection in cell lines and lung-derived organotypic cultures. Intranasal administration in mice allows the maintenance of homeostatic transcriptomic immune profile in lungs, prevents body-weight loss, decreases viral load and shedding, and protects mice from death caused by SARS-CoV-2 variants.

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In a phylogeny, trustworthy reliability branch support estimates are as important as the tree itself. We show that reliability support values based on bootstrapping can be improved by combining sequence and structural information from proteins. Our approach relies on the systematic comparison of homologous intra-molecular structural distances.

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Introduction: T lymphocyte collection is essential for CAR T-cell engineering in refractory hematologic malignancies but needs to be optimised. No guidelines have been established for predicting the amount of T lymphocytes to be collected. The quantity of lymphocytes and especially T cells collected depends on the pre-cytapheresis lymphocyte blood level (pcLBL) and the number of blood volumes (BVs) processed.

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Objectives: To describe the clinical presentation and clinicopathological findings of dogs with nodular splenic lesions composed of heterogeneous cell components associated with systemic inflammation and to provide information on the outcome after surgical resection.

Materials And Methods: Medical records were searched for dogs with histologically and immunohistochemically characterised nodular splenic lesions with mixed stromal, histiocytic and lymphoid cells and the presence of systemic inflammatory markers at the time of diagnosis.

Results: Four dogs were included, of which three had an undifferentiated splenic stromal sarcoma and one had a splenic leiomyosarcoma.

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Background:  High levels of precision, as well as controlled, efficient motions, are important components of microsurgical technique and success. An accurate and objective means of skill assessment is lacking in resident microsurgical education. Here we employ three-dimensional, real-time motion-tracking technology to analyze hand and instrument motion during microsurgical anastomoses.

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Objective: Flow diversion is increasingly used as an endovascular treatment for intracranial aneurysms. FRED-EPI is a prospective, multicenter, French study, conducted to analyze the safety and efficacy of aneurysm treatment with FRED/FRED Jr (Microvention, AlisoViejo, CA, USA) in current clinical practice.

Patients And Methods: Patients with intracranial aneurysms treated with FRED and FRED Jr who agreed to participate were prospectively and consecutively included in all French centers using these devices.

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