753 results match your criteria: "Lyon Sud hospital[Affiliation]"

() is a quarantine plant pathogen capable of colonizing the xylem of a wide range of hosts. Currently, there is no cure able to eliminate the pathogen from a diseased plant, but several integrated strategies have been implemented for containing the spread of . Nanotechnology represents an innovative strategy based on the possibility of maximizing the potential antibacterial activity by increasing the surface-to-volume ratio of nanoscale formulations.

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Comprehensive Genetic Profiling Reveals Frequent Alterations of Driver Genes on the X Chromosome in Extranodal NK/T-cell Lymphoma.

Cancer Res

July 2024

Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM UMR_S 1163, Imagine Institute, Université Paris Cité, Paris, France.

Extranodal NK/T-cell lymphoma (ENKTCL) is an Epstein-Barr virus (EBV)-related neoplasm with male dominance and a poor prognosis. A better understanding of the genetic alterations and their functional roles in ENKTCL could help improve patient stratification and treatments. In this study, we performed a comprehensive genetic analysis of 178 ENKTCL cases to delineate the landscape of mutations, copy number alterations (CNA), and structural variations, identifying 34 driver genes including six previously unappreciated ones, namely, HLA-B, HLA-C, ROBO1, CD58, POT1, and MAP2K1.

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Severe asthma care trajectories: the French RAMSES cohort.

ERJ Open Res

March 2024

Department of Respiratory Diseases, Reference Center for Rare Pulmonary Diseases, Bichat Hospital, AP-HP, Paris, France.

Article Synopsis
  • - The French RAMSES study compared severe asthma patients managed in tertiary referral centres (TRCs) versus secondary care centres (SCCs) to understand differences in patient characteristics and care practices.
  • - A total of 2046 patients were included: 73.4% from TRCs and 26.6% from SCCs; key findings showed that TRC patients had more comorbidities but lower blood eosinophil counts and benefited more from educational programs and in-depth investigations.
  • - The study concluded that asthma care trajectories and patient phenotypes varied significantly between TRCs and SCCs, emphasizing the need for standardized approaches to managing severe asthma.
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Background: An ambitious reform of the early access (EA) process was set up in July 2021 in France, aiming to simplify procedures and accelerate access to innovative drugs.

Objective: This study analyzes the characteristics of oncology drug approvals through the EA process and its impact on real-life data for oncology patients.

Methods: The number and characteristics of EA demands concerning oncology drugs submitted to the National Health Authority (HAS, Haute Autorité de Santé) were reviewed until 31 December 2022.

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Mepolizumab and benralizumab in patients with severe asthma and a history of eosinophilic granulomatosis with polyangiitis.

Front Med (Lausanne)

March 2024

Department of Respiratory Medicine, National Reference Centre for Rare Pulmonary Diseases, Member of ERN-LUNG, Louis Pradel Hospital, Hospices Civils de Lyon, Lyon, France.

Introduction: Asthma associated with eosinophilic granulomatosis with polyangiitis (EGPA) is often severe and corticosteroid-dependent, leading to significant morbidity. Mepolizumab and benralizumab are humanized monoclonal antibodies targeting interleukin 5 (IL-5) and its receptor, respectively. They have been shown to be effective in steroid-sparing in patients with severe eosinophilic asthma.

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Systemic mastocytosis (SM) corresponds to a rare and heterogeneous spectrum of diseases characterized by the accumulation of atypical mast cells (MCs). Advanced mastocytosis (Adv-SM) is associated with poor survival; in contrast, patients with non-advanced SM (non-Adv-SM) usually have a normal life expectancy but may experience poor quality of life. Despite recent therapeutic progress including tyrosine kinase inhibitors, new treatment options are needed for refractory and/or intolerant patients with both severely symptomatic and Adv-SM.

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Background And Aims: Systemic mastocytosis (SM) is characterized by the accumulation of atypical mast cells (MCs) in organs. Liver histology of SM has been marginally described and accurate histological classification is critical, given the consequences of aggressive SM diagnosis. We aimed to describe the histological features associated with liver SM using updated tools.

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Article Synopsis
  • This study investigates genomic imbalances in 317 newly diagnosed T-cell acute lymphoblastic leukemia (T-ALL) patients using single nucleotide polymorphism (SNP) array analysis, focusing on clinical features and outcomes.* -
  • The majority of patients (approximately 96%) showed at least one genomic imbalance, with del(9)(p21) being the most common, followed by other significant deletions involving various chromosomal regions.* -
  • The research identified specific genomic patterns related to age and subclassifications of T-ALL, and established a threshold of 15 imbalances for defining high- and low-risk relapse groups, highlighting the importance of genomic complexity in predicting survival outcomes.*
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Purpose: To assess the feasibility and technical accuracy of performing pedicular screw placement combined with vertebroplasty in the radiological setting.

Methods: Patients who underwent combined vertebroplasty and pedicle screw insertion under combined computed tomography and fluoroscopic guidance in 4 interventional radiology centers from 2018 to 2023 were retrospectively assessed. Patient demographics, vertebral lesion type, and procedural data were analyzed.

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Conventional therapies for inflammatory bowel diseases are mainly based on systemic treatments which cause side effects and toxicity over long-term administration. Nanoparticles appear as a valid alternative to allow a preferential accumulation in inflamed tissues following oral administration while reducing systemic drug exposure. To increase their residence time in the inflamed intestine, the nanoparticles are here associated with a hydrogel matrix.

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The recreational use of nitrous oxide (N2O) is an emerging public health issue. Chronic N2O abuse may result in various clinical symptoms, encompassing neurological, psychiatric and cardiovascular outcomes. Despite the difficulties for the laboratory investigation of N2O intoxication, there is currently no guidelines in France to help both clinicians and biologists use appropriate biomarkers for the diagnosis and monitoring of patients with clinical symptoms potentially related to N2O intoxication.

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Stereotactic body radiotherapy for inoperable patients with renal carcinoma.

Fr J Urol

March 2024

Department of Radiotherapy-Oncology, Lyon Sud Hospital, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France. Electronic address:

Introduction: The objective of this study was to analyze the dose-dependent safety profiles of stereotactic body radiation therapy (SBRT) in patients with inoperable small renal cell carcinoma (RCC).

Material: This is a retrospective study from a single institution including patients with RCC treated between 2011 and 2020 with SBRT on the primary tumor or on a local recurrence after surgery. All patients had been declared inoperable or refused surgery.

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Identification of Patients with Early HR+ HER2- Breast Cancer at High Risk of Recurrence.

Geburtshilfe Frauenheilkd

February 2024

University of Edinburgh Cancer Research Centre, Institute of Genetics and Cancer, Western General Hospital, Edinburgh, UK.

Article Synopsis
  • Breast cancer rates have risen over the last 20 years, but survival has improved due to better detection and treatment, although some women still face relapses or metastases after initial treatment.
  • About 70% of breast cancers are HR+ and HER2-, with a 20-year risk of recurrence, prompting a review of patient characteristics, biomarkers, and genomic tools for assessing high-risk cases.
  • Accurate risk assessment is vital for treatment decisions, combining multiple prognostic tools and tailoring approaches to each patient’s situation to prevent over- or undertreatment.
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Background: Several studies have reported low levels of physical activity (PA) in patients with inflammatory bowel diseases (IBD), possibly related to a lack of information and support, despite the many recognized benefits such as cardiovascular prevention or quality of life (QoL) improvement.

Methods: The purpose of our study was to identify challenges faced by patients and to evaluate IBD impact on PA and QoL by using the International Physical Activity Questionnaire short form and the 32-item Inflammatory Bowel Disease Questionnaire (IBDQ-32) questionnaire, respectively. We also assessed the expectations and knowledge of patients and healthcare professionals using the MICI-Active questionnaire that we developed.

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Objectives: The aim of this study was to determine, in critically ill patients treated with therapeutic plasma exchange (TPE), the incidence of adverse events as well as the incidence of secondary infections and its predictive factors.

Design: A multicenter retrospective cohort study of an intensive care population treated with TPE to collect adverse events and infectious complications. The characteristics of patients who developed an infection after plasma exchange were compared with those of patients who did not.

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As more data become available, the Banff 2007 working classification of skin-containing vascularized composite allograft (VCA) pathology is expected to evolve and develop. This report represents the Banff VCA Working Group's consensus on the first revision of the 2007 scoring system. Prior to the 2022 Banff-CanXadian Society of Transplantation Joint Meeting, 83 clinicians and/or researchers were invited to a virtual meeting to discuss whether the 2007 Banff VCA system called for a revision.

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SOX10-Internal Tandem Duplications and PLAG1 or HMGA2 Fusions Segregate Eccrine-Type and Apocrine-Type Cutaneous Mixed Tumors.

Mod Pathol

March 2024

CARADERM, French Network of Rare Skin Cancers, Lille, France; Department of Pathology, AP-HP Hospital Saint-Louis, INSERM U976, Université Paris Cité, Paris, France.

Article Synopsis
  • Cutaneous mixed tumors are categorized into apocrine and eccrine types, with apocrine tumors commonly featuring a unique plasmacytoid myoepithelial component, particularly in hyaline cell-rich types.
  • This study analyzed 41 cases, revealing that apocrine tumors frequently exhibited PLAG1 and HMGA2 fusions, while eccrine tumors showed distinct SOX10 internal duplications through RNA sequencing.
  • Clustering analysis highlighted the genetic differences across tumor types, confirming a unique profile for eccrine mixed tumors and establishing relationships among various tumor types, contributing to a deeper understanding of their molecular characteristics.
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Serological studies of COVID-19 convalescent patients have identified polyclonal lineage-specific and cross-reactive antibodies (Abs), with varying effector functions against virus variants. Individual specificities of anti-SARS-CoV-2 Abs and their impact on infectivity by other variants have been little investigated to date. Here, we dissected at a monoclonal level neutralizing and enhancing Abs elicited by early variants and how they affect infectivity of emerging variants.

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Cholesterol biosynthetic pathway induces cellular senescence through ERRα.

NPJ Aging

January 2024

Centre de Recherche en Cancérologie de Lyon, Inserm U1052, CNRS UMR 5286, Centre Léon Bérard, Université de Lyon, Lyon, France.

Article Synopsis
  • Cellular senescence is a process where cells stop dividing due to stress, leading to inflammation and age-related diseases, while contributing to lifespan regulation.
  • Recent research indicates that metabolic changes linked to senescence are not completely understood, especially the role of the mevalonate pathway, which produces cholesterol and other important molecules.
  • This study shows that the mevalonate pathway enhances senescence in human cells by affecting cholesterol, which disrupts mitochondria and increases oxidative stress, linking cholesterol levels to age-related cellular dysfunction.
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Article Synopsis
  • * A new grading system called Immune Effector Cell-Associated HematoToxicity (ICAHT) was developed to better assess and reflect the specific risks associated with CAR-T treatment, compared to existing systems like CTCAE.
  • * In a study of 549 patients receiving CAR-T for B-cell malignancies, severe ICAHT correlated with higher infection rates, increased mortality, and poorer survival outcomes, demonstrating its effectiveness in predicting complications from CAR-T therapy.
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Article Synopsis
  • In a study of 183 unvaccinated children hospitalized for COVID-19 pneumonia, 10.4% had autoantibodies that neutralized type I interferons (IFNs), specifically targeting IFN-α2 and IFN-ω in varying combinations.
  • Among the children with autoantibodies, 3.8% neutralized higher levels of IFN-α2, while the rest had lower neutralization capabilities, and some uninfected children also displayed similar antibodies.
  • The presence of these autoantibodies significantly increased the odds of developing severe COVID-19 pneumonia, particularly those neutralizing higher concentrations of IFN-α2 compared to those neutralizing IFN-ω.
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High-fat diets: You are what you eat….your extracellular vesicles too!

J Extracell Vesicles

January 2024

CarMeN Laboratory, INSERM 1060-INRAE 1397, Department of Human Nutrition, Lyon Sud Hospital, University of Lyon, Lyon, France.

Recent works indicate that the lipid composition of extracellular vesicles (EVs) can modify their biological functions and their incorporation into recipient cells. In particular high-fat diets affect EV biogenesis, EV lipid composition, EV targeting and consequently the cross-talk between tissues. This review connects different research topics to show that a vicious circle is established during the development of high-fat diet-induced obesity, connecting the alteration of lipid metabolism, the composition of extracellular vesicles and the spread of deleterious lipids between tissues, which participates in NAFLD/NASH and diabetes development.

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Objectives: Tropheryma whipplei infection can manifest as inflammatory joint symptoms, which can lead to misdiagnosis of inflammatory rheumatic disease and the use of disease-modifying antirheumatic drugs. We investigated the impact of diagnosis and treatment of Tropheryma whipplei infection in patients with inflammatory rheumatic disease.

Methods: We initiated a registry including patients with disease-modifying antirheumatic drugs-treated inflammatory rheumatic disease who were subsequently diagnosed with Tropheryma whipplei infection.

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