872 results match your criteria: "Guangzhou Institute of Respiratory Disease[Affiliation]"

Investigation of Smoking Cessation Status and Its Influencing Factors in Patients with Chronic Obstructive Pulmonary Disease.

Int J Chron Obstruct Pulmon Dis

January 2025

State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory, Guangzhou Institute of Respiratory Disease, Guangdong, People's Republic of China.

Purpose: Chronic obstructive pulmonary disease (COPD) is a common disease with high prevalence, high mortality and high costs across the globe. Small airways are major sites contributing to airway resistance and the small airway disorder (SAD) is frequently implicated in early-stage COPD. Smoking is recognized as the leading cause of COPD and SAD.

View Article and Find Full Text PDF

Mucosal-associated invariant T (MAIT) cells are known for their rapid effector functions and antibacterial immune protection. Here, we define the plasticity of interferon-γ (IFN-γ)-producing MAIT1 and interleukin-17A (IL-17A)-producing MAIT17 cell subsets in vivo. Whereas T-bet MAIT1 cells remained stable in all experimental settings, after adoptive transfer or acute or infection, RORγt MAIT17 cells could undergo phenotypic and functional conversion into both RORγtT-bet MAIT1/17 and RORγtT-bet MAIT1 cells.

View Article and Find Full Text PDF

Accuracy of Contrast-enhanced Ultrasonography with Perfluorobutane for Diagnosing Subpleural Lung Lesions.

Acad Radiol

October 2024

Department of Ultrasound, First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang Rd, Guangzhou 510120, Guangdong Province, China; The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Disease, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510120, China. Electronic address:

Rationale And Objectives: To investigate the diagnostic value of perfluorobutane-enhanced ultrasound (US) examinations for differentiating benign from malignant subpleural lung lesions.

Methods: This single-center, retrospective study enrolled consecutive patients with subpleural lung lesions between January 2022 and March 2023. The cause of the lung lesions was confirmed by biopsy and follow-up examinations.

View Article and Find Full Text PDF
Article Synopsis
  • Cough variant asthma (CVA) is a common condition causing chronic cough, but its complex nature and unclear biological mechanisms make treatment challenging.
  • A study analyzed the sputum metabolome of CVA patients, finding alterations in metabolic pathways linked to arginine, purine, and pyrimidine metabolism that could be improved with anti-asthmatic medication.
  • Specific metabolites, like dipeptides and thiamine phosphate, were identified as potential biomarkers for both diagnosing CVA and predicting treatment responses, suggesting issues with mitochondrial energy metabolism may play a role in CVA's development.
View Article and Find Full Text PDF

A clinically effective model based on cell-free DNA methylation and low-dose CT for risk stratification of pulmonary nodules.

Cell Rep Med

October 2024

Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Disease & Health, China State Key Laboratory and National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China. Electronic address:

Article Synopsis
  • Accurate, non-invasive, and cost-effective methods are essential for improving the diagnosis and management of pulmonary nodules discovered through low-dose computed tomography (LDCT).
  • Researchers conducted genome-wide methylation sequencing of lung tissues to create a panel of 263 DNA methylation regions and applied this to blood cell-free DNA (cfDNA) analysis across two patient cohorts.
  • They developed a machine learning model that integrates 40 cfDNA methylation biomarkers, age, and CT imaging features, which successfully reduces unnecessary surgeries for benign nodules while promoting timely treatment for lung cancer patients.
View Article and Find Full Text PDF

Safety and efficacy of a novel transbronchial radiofrequency ablation system for lung tumours: One year follow-up from the first multi-centre large-scale clinical trial (BRONC-RFII).

Respirology

January 2025

State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory, Guangzhou Institute of Respiratory Disease, Guangzhou, Guangdong, People's Republic of China.

Background And Objective: Radiofrequency ablation (RFA) is an emerging treatment of lung cancer, yet it is accompanied by certain safety concerns and operational limitations. This first multi-centre, large-scale clinical trial aimed to investigate the technical performance, efficacy and safety of an innovative transbronchial RFA system for lung tumours.

Methods: The study enrolled patients with malignant lung tumours who underwent transbronchial RFA using an automatic saline microperfusion system between January 2021 and December 2021 across 16 medical centres.

View Article and Find Full Text PDF
Article Synopsis
  • Severe asthma has problems with its airway barrier, and a key protein called E-cadherin can be turned into a different form that might cause issues.
  • Researchers studied how this new form, called sE-cadherin, affects asthma by using samples from healthy people and asthma patients, and testing in mice.
  • They found that high levels of sE-cadherin in asthma patients are linked to worse symptoms, and blocking it in mice helped reduce inflammation and problems in their airways.
View Article and Find Full Text PDF

Editorial: Video-assisted surgery in oncology.

Front Oncol

July 2024

Department of Thoracic Surgery/Oncology, Guangzhou Institute of Respiratory Disease, China State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.

View Article and Find Full Text PDF

Chinese expert consensus on the diagnosis and treatment of bone metastasis in lung cancer (2022 edition).

J Natl Cancer Cent

December 2023

CAMS Key Laboratory of Translational Research on Lung Cancer, State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.

Article Synopsis
  • * About 50% of patients with bone metastasis face serious complications known as skeletal related events (SREs), which drastically affect their quality of life and survival.
  • * To improve diagnosis and treatment for bone metastasis in lung cancer, a multi-disciplinary team has created an expert consensus for standardizing care approaches.
View Article and Find Full Text PDF

Kartagener's syndrome.

Am J Med Sci

July 2024

Department of Organ Transplantation & Department of Thoracic Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou Institute of Respiratory Disease & China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou, China. Electronic address:

View Article and Find Full Text PDF

Aims/hypothesis: Individuals with diabetes are at high risk of cardiovascular complications, which significantly increase morbidity/mortality. Coronary microvascular disease (CMD) is recognised as a critical contributor to the increased cardiac mortality observed in people with diabetes. Therefore, there is an urgent need for treatments that are specific to CMD.

View Article and Find Full Text PDF

Spatial whole exome sequencing reveals the genetic features of highly-aggressive components in lung adenocarcinoma.

Neoplasia

August 2024

Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China. Electronic address:

In invasive lung adenocarcinoma (LUAD), patients with micropapillary (MIP) or solid (SOL) components had a significantly poorer prognosis than those with only lepidic (LEP), acinar (ACI) or papillary (PAP) components. It is interesting to explore the genetic features of different histologic subtypes, especially the highly aggressive components. Based on a cohort of 5,933 patients, this study observed that in different tumor size groups, LUAD with MIP/SOL components showed a different prevalence, and patients with ALK alteration or TP53 mutations had a higher probability of developing MIP/SOL components.

View Article and Find Full Text PDF

Background: Persistent cough is one of the most common complications following pulmonary resection, that impairs patients' quality of life and prolongs recovery time. However, a comprehensive review of persistent cough after pulmonary resection (CAP) has not been performed.

Methods: A literature search of PubMed/MEDLINE, Web of Science, and Embase database was conducted for persistent-CAP up to June 2023.

View Article and Find Full Text PDF

In spite of recent advances in the field of undernutrition, current dietary therapy relying on the supply of high protein high calorie formulas is still plagued with transient recovery of impaired organs resulting in significant relapse of cases. This is partly attributed to the inadequacy of current research models in recapitulating clinical undernutrition for mechanistic exploration. Using 1636 Macaca fascicularis monkeys, a human-relevant criterion for determining undernutrition weight-for-age z-score (WAZ), with a cutoff point of ≤ -1.

View Article and Find Full Text PDF
Article Synopsis
  • * Key risk factors for low FEV identified include low body mass index, doctor-diagnosed asthma, and wheezing.
  • * While those with low FEV showed increased Medicaid use over 15 years, their risk of all-cause mortality did not significantly increase over 30 years.
View Article and Find Full Text PDF

Background: The parietal pleural adhesion/invasion of lung cancer can contribute substantially to poor prognosis and difficulty in surgery. The value of ultrasound in evaluating the parietal pleural adhesion or invasion (pleural adhesion/invasion) of lung cancer remains uncertain. This study investigated the value of B-mode ultrasound and contrast-enhanced ultrasound (CEUS) in diagnosing parietal pleural adhesion/invasion of subpleural lung cancer.

View Article and Find Full Text PDF

MAIT cell-MR1 reactivity is highly conserved across multiple divergent species.

J Biol Chem

June 2024

Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, Australia. Electronic address:

Mucosal-associated invariant T (MAIT) cells are a subset of unconventional T cells that recognize small molecule metabolites presented by major histocompatibility complex class I related protein 1 (MR1), via an αβ T cell receptor (TCR). MAIT TCRs feature an essentially invariant TCR α-chain, which is highly conserved between mammals. Similarly, MR1 is the most highly conserved major histocompatibility complex-I-like molecule.

View Article and Find Full Text PDF

Electrical impedance tomography-guided positive end-expiratory pressure titration in ARDS: a systematic review and meta-analysis.

Intensive Care Med

May 2024

Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada.

Purpose: Assessing efficacy of electrical impedance tomography (EIT) in optimizing positive end-expiratory pressure (PEEP) for acute respiratory distress syndrome (ARDS) patients to enhance respiratory system mechanics and prevent ventilator-induced lung injury (VILI), compared to traditional methods.

Methods: We carried out a systematic review and meta-analysis, spanning literature from January 2012 to May 2023, sourced from Scopus, PubMed, MEDLINE (Ovid), Cochrane, and LILACS, evaluated EIT-guided PEEP strategies in ARDS versus conventional methods. Thirteen studies (3 randomized, 10 non-randomized) involving 623 ARDS patients were analyzed using random-effects models for primary outcomes (respiratory mechanics and mechanical power) and secondary outcomes (PaO/FiO ratio, mortality, stays in intensive care unit (ICU), ventilator-free days).

View Article and Find Full Text PDF

Background: Chest dynamic digital radiography (DDR) is used as a supplementary tool for the routine pulmonary function test (PFT); however, its potential as a novel standard PFT method has yet to be explored. Therefore, the present study aimed to investigate the correlation between the change in the projected lung area (ΔPLA) and forced vital capacity (FVC) using chest DDR, and to establish a DDR-FVC estimation model and a predictive value model for the ΔPLA.

Methods: In total, 139 participants who underwent chest DDR and the PFT in the same period at The First Affiliated Hospital of Guangzhou Medical University from April 2022 to February 2023 were prospectively included in the study.

View Article and Find Full Text PDF

Background: Extracorporeal membrane oxygenation (ECMO) has been increasingly used as life support for lung transplantation. However, there are no clinical risk models to predict whether ECMO support is required for lung transplantation. This study developed a simple risk score to predict the need for intraoperative ECMO in patients undergoing lung transplantation, identify high-risk patients who need ECMO support, and guide clinical interventions.

View Article and Find Full Text PDF