186 results match your criteria: "Reference center for rare pulmonary diseases[Affiliation]"

Interstitial Lung Disease Associated with Anti-Ku Antibodies: A Case Series of 19 Patients.

J Clin Med

January 2025

Department of Respiratory Medicine, National Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, European Reference Network (ERN)-LUNG, 28 Avenue Doyen Lepine, 69677 Lyon, France.

Antibodies against Ku have been described in patients with various connective tissue diseases. The objective of this study was to describe the clinical, functional, and imaging characteristics of interstitial lung disease in patients with anti-Ku antibodies. : This single-center, retrospective observational study was conducted at a tertiary referral institution.

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Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a recurrent inflammatory disease associated with several comorbidities and a significant disease burden for patients. Treatments include corticosteroids and sinonasal surgery, but these can be associated with the risk of adverse events and nasal polyp recurrence. Biologic treatments such as mepolizumab can be used as an add-on treatment and are effective at reducing surgery and corticosteroid use.

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Continued Treatment with Nintedanib in Patients with Progressive Pulmonary Fibrosis: Data from INBUILD-ON.

Lung

January 2025

National Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Claude Bernard University Lyon 1, UMR 754, ERN-LUNG, Lyon, France.

Purpose: In the INBUILD trial in patients with progressive pulmonary fibrosis (PPF), nintedanib slowed the decline in forced vital capacity (FVC) versus placebo, with a safety profile characterised mainly by gastrointestinal events. INBUILD-ON, the open-label extension of INBUILD, assessed the safety of nintedanib during longer-term treatment. Data on FVC were collected.

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Background: We sought consensus among practising respiratory physicians on the prediction, identification and monitoring of progression in patients with fibrosing interstitial lung disease (ILD) using a modified Delphi process.

Methods: Following a literature review, statements on the prediction, identification and monitoring of progression of ILD were developed by a panel of physicians with specialist expertise. Practising respiratory physicians were sent a survey asking them to indicate their level of agreement with these statements on a binary scale or 7-point Likert scale (- 3 to 3), or to select answers from a list.

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Background And Aims: Systemic sclerosis (SSc) is an autoimmune connective disease characterised by excessive extracellular matrix deposition and widespread skin and internal organ fibrosis including various cardiac manifestations. Heart involvement is one of the leading causes of death among patients with SSc. In this study, we aimed to assess the effect of various vasodilator treatments.

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Article Synopsis
  • This study investigated the relationship between sleep apnea syndrome (SAS) and the dosage/timing of opioid substitution treatments (OST) in patients using methadone or buprenorphine for opioid use disorder.
  • It included a retrospective analysis of adult patients who received these treatments over several years, assessing their apnea-hypopnea index (AHI) alongside treatment data.
  • The findings indicated that higher doses of methadone, particularly taken in the evening, were linked to more severe SAS, while no significant association was found between buprenorphine doses and AHI, suggesting buprenorphine might be a better alternative for patients with SAS.
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Fibroblast-derived extracellular vesicles contain SFRP1 and mediate pulmonary fibrosis.

JCI Insight

August 2024

Center for Lung Aging and Regeneration (CLAR), Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Idiopathic pulmonary fibrosis (IPF) is a lethal chronic lung disease characterized by aberrant intercellular communication, extracellular matrix deposition, and destruction of functional lung tissue. While extracellular vesicles (EVs) accumulate in the IPF lung, their cargo and biological effects remain unclear. We interrogated the proteome of EV and non-EV fractions during pulmonary fibrosis and characterized their contribution to fibrosis.

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Teatime: epigallocatechin gallate targets fibroblast-epithelial cell crosstalk to combat lung fibrosis.

J Clin Invest

September 2024

Center for Lung Aging and Regeneration (CLAR), Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Epigallocatechin gallate (EGCG) is a polyphenol plant metabolite abundant in tea that has demonstrated antifibrotic properties in the lung. In this issue of the JCI, Cohen, Brumwell, and colleagues interrogated the mechanistic action of EGCG by investigating lung biopsies of patients with mild interstitial lung disease (ILD) who had undergone EGCG treatment. EGCG targeted the WNT inhibitor SFRP2, which was enriched in fibrotic fibroblasts and acted as a TGF-β target, with paracrine effects leading to pathologic basal metaplasia of alveolar epithelial type 2 cells.

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Topic Importance: Combined pulmonary fibrosis and emphysema (CPFE) is an underdiagnosed syndrome in which individuals have variable degrees of pulmonary fibrosis and emphysema. Patients with CPFE have high morbidity, including poor exercise tolerance and increased development of comorbidities. CPFE mortality also seems to outpace that of lone emphysema and pulmonary fibrosis.

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Article Synopsis
  • Pulmonary alveolar proteinosis (PAP) is a rare lung syndrome characterized by the accumulation of proteinaceous material, leading to symptoms like progressive dyspnea and hypoxemia, with various diagnostic methods such as CT scans, bronchoalveolar lavage, and genetic testing suggested for evaluation.
  • A European Respiratory Society Task Force, comprised of diverse experts, developed evidence-based guidelines for diagnosing and managing PAP using a systematic review of literature and the GRADE approach for assessing the strength of recommendations.
  • The Task Force provided specific management recommendations, including whole lung lavage, GM-CSF therapy, and potential treatments like rituximab, alongside diagnostic approaches involving GM-CSF antibody
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Background: Recent advancements in anomaly detection have paved the way for novel radiological reading assistance tools that support the identification of findings, aimed at saving time. The clinical adoption of such applications requires a low rate of false positives while maintaining high sensitivity.

Purpose: In light of recent interest and development in multi pathology identification, we present a novel method, based on a recent contrastive self-supervised approach, for multiple chest-related abnormality identification including low lung density area ("LLDA"), consolidation ("CONS"), nodules ("NOD") and interstitial pattern ("IP").

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Objectives: The aim of this study was to determine the association between different histological patterns and prognosis in patients with SSc and histologically proven muscle involvement.

Methods: A multicentre retrospective study was conducted of a cohort of scleroderma patients who had undergone muscle biopsy. The biopsies were reviewed in a coordinated manner to classify patients based on histological findings.

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Article Synopsis
  • Acid sphingomyelinase deficiency (ASMD) is a serious genetic disease that can affect people from childhood to adulthood, caused by problems with a gene called SMPD1.
  • A study reviewed medical records from 27 hospitals in France to learn more about the health and survival of patients with ASMD from 1990 to 2020.
  • The results showed that patients with type A usually did not live past early childhood, while those with type B lived longer, but there were still risks of early death from serious illnesses like neurodegeneration and cancer.
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CD206 macrophages are relevant non-invasive imaging biomarkers and therapeutic targets in experimental lung fibrosis.

Thorax

November 2024

HSP-pathies Team, INSERM U1231 CTM Labex LIPSTIC and Label of Excellence from la Ligue National Contre le Cancer, Dijon, France.

Background: Interstitial lung diseases (ILDs) include a large number of diseases associated with progressive pulmonary fibrosis (PPF), including idiopathic pulmonary fibrosis (IPF). Despite the rarity of each of the fibrotic ILDs individually, they cumulatively affect a considerable number of patients. PPF is characterised by an excessive collagen deposition leading to functional decline.

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Measurement of thoraco-abdominal synchrony using respiratory inductance plethysmography: technical aspects and a proposal to overcome its limitations.

Expert Rev Respir Med

June 2024

Servei de Pneumologia, Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain.

Background: Thoraco-abdominal asynchrony (TAA) is usually assessed by respiratory inductance plethysmography. The main parameter used for its assessment is the calculation of the phase angle based on Lissajous plots. However, there are some mathematical limitations to its use.

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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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Ultra-low dose chest CT for the diagnosis of pulmonary arteriovenous malformation in patients with hereditary hemorrhagic telangiectasia.

Diagn Interv Imaging

October 2024

Department of Radiology, Hôpital Louis Pradel, Hospices Civils de Lyon, 69677, Bron, France; Université de Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, UJM-Saint Etienne, CNRS, INSERM, CREATIS UMR 5220, U1206, 69100 Villeurbanne, France. Electronic address:

Purpose: The purpose of this study was to compare ultra-low dose (ULD) and standard low-dose (SLD) chest computed tomography (CT) in terms of radiation exposure, image quality and diagnostic value for diagnosing pulmonary arteriovenous malformation (AVM) in patients with hereditary hemorrhagic telangiectasia (HHT).

Materials And Methods: In this prospective board-approved study consecutive patients with HHT referred to a reference center for screening and/or follow-up chest CT examination were prospectively included from December 2020 to January 2022. Patients underwent two consecutive non-contrast chest CTs without dose modulation (i.

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Recent genetic and genomic advancements have elucidated the complex etiology of idiopathic pulmonary fibrosis (IPF) and other progressive fibrotic interstitial lung diseases (ILDs), emphasizing the contribution of heritable factors. This state-of-the-art review synthesizes evidence on significant genetic contributors to pulmonary fibrosis (PF), including rare genetic variants and common SNPs. The promoter variant is unusual, a common SNP that markedly elevates the risk of early and established PF.

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The shortcomings of qualitative visual assessment have led to the development of computer-based tools to characterise and quantify disease on high-resolution computed tomography (HRCT) in patients with interstitial lung diseases (ILDs). Quantitative CT (QCT) software enables quantification of patterns on HRCT with results that are objective, reproducible, sensitive to change and predictive of disease progression. Applications developed to provide a diagnosis or pattern classification are mainly based on artificial intelligence.

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Pulmonary fibrosis is uncommon in primary Sjögren disease.

Diagn Interv Imaging

May 2024

National Reference Center for Rare Pulmonary Diseases, Hôpital Louis Pradel, Hospices Civils de Lyon, ERN-LUNG, 69677 Bron, France; Université Claude Bernard Lyon 1, INRAE, UMR754, 69000 Lyon, France.

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A phase II trial reported clinical benefit over 28 weeks in patients with idiopathic pulmonary fibrosis (IPF) who received zinpentraxin alfa. To investigate the efficacy and safety of zinpentraxin alfa in patients with IPF in a phase III trial. This 52-week phase III, double-blind, placebo-controlled, pivotal trial was conducted at 275 sites in 29 countries.

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Benralizumab for eosinophilic granulomatosis with polyangiitis: a retrospective, multicentre, cohort study.

Lancet Rheumatol

December 2023

Department of Experimental and Clinical Medicine, University of Firenze, Florence, Italy; Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Melbourne, VIC, Australia. Electronic address:

Article Synopsis
  • This study evaluated the effectiveness and safety of the IL-5 receptor inhibitor benralizumab for treating patients with eosinophilic granulomatosis with polyangiitis (EGPA) across 28 European centers.
  • Out of 121 patients treated, complete responses increased from 12.4% at 3 months to 46.4% at 12 months, while partial responses decreased over the same period.
  • Notable improvements were seen in disease activity, as measured by the Birmingham Vasculitis Activity Score (BVAS), and a reduction in various disease manifestations, alongside better lung function.
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A formula for predicting emphysema extent in combined idiopathic pulmonary fibrosis and emphysema.

Respir Res

January 2024

National Reference Center for Rare Pulmonary Diseases (OrphaLung), Louis Pradel Hospital, Hospices Civils de Lyon, ERN-LUNG, Lyon, France.

Article Synopsis
  • - The study focuses on creating a formula to estimate the extent of emphysema in patients with idiopathic pulmonary fibrosis (IPF), addressing the lack of single pulmonary function tests that effectively measure this condition.
  • - The formula was developed using data from 76 patients and validated on larger groups, showing a significant relationship between predicted and observed emphysema extent, outperforming individual pulmonary function tests.
  • - A specific threshold identified by the formula (15% emphysema extent) highlighted significant differences in lung function changes over time, indicating its potential clinical relevance for tracking patient outcomes.
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Background And Objective: Lymphangioleiomyomatosis (LAM) is a rare multicystic lung disease. Although a correlation between pulmonary function test (PFT) results and exercise capacity appears probable, it has not yet been demonstrated. The aim of this study was to assess whether PFT results correlate with 6-minute walk test (6MWT) results in patients with LAM.

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