1,301 results match your criteria: "Universite Claude Bernard Lyon I[Affiliation]"

Objective: To examine the course of interstitial lung disease associated with rheumatoid arthritis (RA-ILD) in France on treatment with Janus kinase inhibitors (JAKis) using the MAJIK-SFR registry.

Methods: Prospective national multicentre observational study identifying patients with RA-ILD from the MAJIK-SFR registry. Pulmonary assessment data were collected at JAKi initiation and follow-up visits (6 months, 12 months and a median of 21 months postinclusion), including chest high-resolution CT (HRCT), pulmonary function tests (forced vital capacity (FVC) and diffusing capacity of the lungs for carbon monoxide (DLCO)), acute exacerbations of ILD, respiratory infections and lung cancers.

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Background: Paraneoplastic inflammatory syndrome (PIS) with fever and biological inflammation is a rare but severe condition often caused by the systemic production of interleukin 6 (IL-6) by cancer cells. We report on the efficacy of tocilizumab, an anti-IL-6 receptor antibody, in 35 patients with severe PIS.

Patients And Methods: All 35 patients with solid cancers (sarcomas, lung carcinoma, and breast carcinoma) diagnosed with a PIS from 2019 to 2024 treated with tocilizumab were analyzed in this single-center study (health authorities' approval R201-004-478).

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Allorecognition Unveiled: Integrating Recent Breakthroughs Into the Current Paradigm.

Transpl Int

November 2024

Centre International de Recherche en Infectiologie, INSERM U1111, Université Claude Bernard Lyon I, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University Lyon, Lyon, France.

In transplantation, genetic differences between donor and recipient trigger immune responses that cause graft rejection. Allorecognition, the process by which the immune system discriminates allogeneic grafts, targets major histocompatibility complex (MHC) and minor histocompatibility antigens. Historically, it was believed that allorecognition was solely mediated by the recipient's adaptive immune system recognizing donor-specific alloantigens.

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Kidney transplant recipients (KTRs) are highly vulnerable to COVID-19. An intensified scheme of vaccination offers short-term protection to the 50%-75% of KTRs able to develop a germinal center reaction, required for the generation of neutralizing titers of antibodies (NAbs). However, the duration of this vaccinal protection is unknown.

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NK Cells: Not Just Followers But Also Initiators of Chronic Vascular Rejection.

Transpl Int

October 2024

CIRI, INSERM U1111, Université Claude Bernard Lyon I, CNRS UMR5308, Ecole Normale Supérieure de Lyon, University of Lyon, Lyon, France.

Chronic graft rejection represents a significant threat to long-term graft survival. Early diagnosis, understanding of the immunological mechanisms and appropriate therapeutic management are essential to improve graft survival and quality of life for transplant patients. Knowing which immune cells are responsible for chronic vascular rejection would allow us to provide effective and appropriate treatment for these patients.

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Article Synopsis
  • The study investigates mineral bone disorder in patients with chronic kidney disease after kidney transplantation, focusing on bone biomarkers and microarchitecture changes before and 6 months after the surgery.
  • A subgroup of patients aged 10 to 18 who underwent their first kidney transplant was compared to healthy controls, revealing initially higher bone densities but notable declines in trabecular microarchitecture at the radius six months post-transplant.
  • Despite some improvements in bone health, many patients persisted with metabolic issues like acidosis and elevated parathyroid hormone levels after the transplant, indicating ongoing bone metabolism concerns.
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FcγR3A polymorphism influences natural killer cell activation and response to anti-PD-L1 (avelumab) in gestational trophoblastic neoplasia.

Am J Obstet Gynecol

October 2024

Centre international de recherche en infectiologie (CIRI), INSERM U1111, Université Claude Bernard Lyon I, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France.

Article Synopsis
  • * Researchers aimed to determine the role of antibody-dependent cell-mediated cytotoxicity (ADCC) in avelumab's effectiveness and whether variations in the FcγR3A receptor can predict patient responses.
  • * Findings confirmed the presence of FcγR3A+ natural killer (NK) cells in PD-L1-expressing GTN, and that avelumab enhances NK cell activity, further suggesting higher affinity FcγR3A variants may
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Article Synopsis
  • A study called IMADGIST assessed whether extending adjuvant imatinib treatment for an additional three years (totaling six years) improved disease-free survival in patients with high-risk localized gastrointestinal stromal tumors (GIST) who had already received three years of treatment after surgery.
  • Conducted across 14 centers, the trial included 136 patients with varied risks of tumor recurrence, finding that those treated for six years had significantly better disease-free survival compared to those who stopped after three years.
  • Although there was no significant difference in overall survival, time to imatinib resistance, or quality of life between the two groups, the results suggest that extending treatment can effectively lower relapse rates with
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This pilot study aimed to investigate the interest of high angular resolution diffusion imaging (HARDI) and tractography of the spinal cord (SC) in the management of patients with intramedullary tumors by providing predictive elements for tumor resection. Eight patients were included in a prospective study. HARDI images of the SC were acquired using a 3T MRI scanner with a reduced field of view.

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Background: The long-term impact of tyrosine kinase inhibitor (TKI) discontinuation on resistance and survival in patients with advanced gastrointestinal stromal tumours (GIST) is unclear. We report the exploratory long-term outcomes of patients with advanced GIST stopping imatinib in the BFR14 trial.

Methods: BFR14, an open-label, randomised, phase 3 trial, was done in 17 comprehensive cancer centres or hospitals across France.

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We investigate the etiology of amyotrophic lateral sclerosis (ALS) in a 35-year-old woman presenting with progressive weakness in her left upper limb. Prior to sequencing, a comprehensive neurological work-up was performed, including neurological examination, electrophysiology, biomarker assessment, and brain and spinal cord MRI. Six months before evaluation, the patient experienced weakness and atrophy in her left hand, accompanied by brisk reflexes and Hoffman sign in the same arm.

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Detection and Quantification of HBV Transcripts by Full-Length 5'RACE-PCR.

Methods Mol Biol

July 2024

Cancer Research Center of Lyon (CRCL), UMR Inserm 1052 CNRS 5286 Mixte, CLB, Université de Lyon 1 (UCBL1), Lyon, France.

Chronic hepatitis B virus infection is a major health burden worldwide. Although efficient in maintaining the infection under control, current treatments are unable to fully eradicate the virus due to the persistence of its minichromosome, the so-called cccDNA. In the context of emerging antiviral and combinatorial therapies aiming at decreasing the cccDNA pool or at silencing its transcriptional activity, the detection and quantification of viral RNAs have gained increasing interest as a way to monitor the HBV reservoir.

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Temporal dynamics of woolly mammoth genome erosion prior to extinction.

Cell

July 2024

Centre for Palaeogenetics, Svante Arrhenius väg 20C, 10691 Stockholm, Sweden; Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden; Department of Zoology, Stockholm University, 10691 Stockholm, Sweden. Electronic address:

A number of species have recently recovered from near-extinction. Although these species have avoided the immediate extinction threat, their long-term viability remains precarious due to the potential genetic consequences of population declines, which are poorly understood on a timescale beyond a few generations. Woolly mammoths (Mammuthus primigenius) became isolated on Wrangel Island around 10,000 years ago and persisted for over 200 generations before becoming extinct around 4,000 years ago.

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Optimizing drug combinations for T-PLL: restoring DNA damage and P53-mediated apoptotic responses.

Blood

October 2024

Department I of Internal Medicine, Center for Integrated Oncology Aachen-Bonn-Cologne-Duesseldorf, University Hospital Cologne, University of Cologne, Cologne, Germany.

T-prolymphocytic leukemia (T-PLL) is a mature T-cell neoplasm associated with marked chemotherapy resistance and continued poor clinical outcomes. Current treatments, that is, the CD52-antibody alemtuzumab, offer transient responses, with relapses being almost inevitable without consolidating allogeneic transplantation. Recent more detailed concepts of T-PLL's pathobiology fostered the identification of actionable vulnerabilities: (1) altered epigenetics, (2) defective DNA damage responses, (3) aberrant cell-cycle regulation, and (4) deregulated prosurvival pathways, including T-cell receptor and JAK/STAT signaling.

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[The environmental impact of digital technology and artificial intelligence, in the era of digital pathology].

Ann Pathol

September 2024

Service de pathologie multi-site, hospices civils de Lyon, hôpital Lyon-Sud, 165, chemin du Grand-Revoyet, 69495 Oullins-Pierre-Bénite, France. Electronic address:

While digitization and artificial intelligence represent the future of our specialty, future is also constrained by global warming and overstepping of planetary limits, threatening human health and the functioning of the healthcare system. The report by the Délégation ministérielle du numérique en santé and the French government's ecological planning of the healthcare system confirm the need to control the environmental impact of digital technology. Indeed, despite the promises of dematerialization, digital technology is a very material industry, generating greenhouse gas emissions, problematic consumption of water and mineral resources, and social impacts.

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Natural killer cell-mediated innate microvascular rejection.

Nat Rev Nephrol

August 2024

CIRI, INSERM U1111, Université Claude Bernard Lyon I, CNRS UMR5308, Ecole Normale Supérieure de Lyon, Univ. Lyon, Lyon, France.

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Computed versus experimental energy barriers in solution: Influence of the type of the density functional approximation.

J Comput Chem

October 2024

Universite Claude Bernard Lyon I, CNRS, CPE-Lyon, INSA-Lyon, UMR 5246, ICBMS Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, Villeurbanne, France.

Article Synopsis
  • Mechanistic studies using density functional theory (DFT) for organic and organometallic reactions in solution are now common and complement experimental work.
  • The initial challenge in this approach is selecting the right DFT functional for accurate energy barrier calculations, with evaluations made on both non-empirical (like PBE and PBE0) and empirical functionals (like BLYP and B3LYP).
  • General findings indicate that non-empirical functionals tend to perform better than empirical ones, with PBE0 and PBE0-DH yielding the most accurate results for energy barriers, while adding GD3-BJ dispersion correction doesn't improve accuracy.
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[Therapeutic part-time work].

Rev Prat

May 2024

Unité mixte de recherche épidémiologique et de surveillance transport, travail, environnement (UMRESTTE), UMR T9405, université Claude-Bernard Lyon-I. Hospices civils de Lyon, service de médecine et santé au travail, Lyon, France.

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[Job retention: occupational medicine and other players].

Rev Prat

May 2024

Unité mixte de recherche épidémiologique et de surveillance transport, travail, environnement (UMRESTTE), UMR T9405, université Claude-Bernard Lyon-I. Hospices civils de Lyon, service de médecine et santé au travail, Lyon, France.

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Falsely reassuring impedance in a patient with deep brain stimulation: a case report.

J Neurol

August 2024

Department of Neurology C, NS-PARK/FCRIN, Hospices Civils de Lyon, Pierre Wertheimer Neurological Hospital, Expert Parkinson Center, Bron, France.

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