AI Article Synopsis
- Acute lung injury (ALI) involves lung edema, dysfunctional surfactant, and inflammation, prompting a study on the effects of S-nitroso-N-acetyl-penicillamine (SNAP) on cell migration and activation in rabbits.
- In the experiment, rabbits were divided into three groups: those with ALI untreated, those treated with SNAP, and healthy controls; various inflammatory markers and cell counts were then measured.
- Results showed that SNAP treatment significantly reduced cell leakage, inflammation, and apoptosis in the lungs of rabbits with ALI compared to untreated subjects.
Article Abstract
Acute lung injury is characterized by lung edema, surfactant dysfunction, and inflammation. The main goal of our study was to evaluate effects of S-nitroso-N-acetyl-penicillamine (SNAP) on migration of cells into the lung and their activation, inducible NO synthase (iNOS) activity, and apoptosis in experimental acute lung injury (ALI) in rabbits. ALI was induced by repetitive lung lavage with saline. The animals were divided into the following groups: (1) ALI without therapy, (2) lung injury treated with SNAP (ALI + SNAP), and (3) healthy animals (Control). After 5 h of ventilation, total and differential counts of cells in the bronchoalveolar lavage fluid (BALF) were assessed. Concentrations of interleukins (IL)-1ß, IL-6, and IL-8, endogenous secretory receptor for advanced glycation endproducts (esRAGE), sphingosine-1-phosphate receptor (S1PR)3, caspase-3, and mRNA expression of inducible NO synthase (iNOS) in lung tissue and nitrite/nitrate in plasma were analyzed. In the right lung, apoptotic cells were evaluated by TUNEL assay. In the animals with ALI, higher counts of cells, mainly neutrophils, in BALF and increased production of pro-inflammatory substances were observed compared with controls. SNAP therapy reduced a leak of cells into the lung and decreased concentrations of pro-inflammatory and apoptotic markers, reduced mRNA expression of iNOS, and decreased apoptotic index in the lung.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/5584_2016_34 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
E-cigarette or vaping product use-associated lung injury (EVALI). A case report of a 19-year-old male in Denmark.
Eur Clin Respir J
January 2025
Department of Cardiothoracic Anesthesia and Intensive Care, The Heart Centre, University Hospital of Copenhagen, Denmark.
E-cigarette or vaping product use-associated lung injury (EVALI) is a potentially severe acute interstitial lung disease primarily observed in the United States, with sporadic cases reported in Europe. EVALI, though rare, could be susceptible to under-diagnosis due to limited awareness and diagnostic suspicion. We present a case of a 19-year-old male in Denmark diagnosed with severe EVALI.
View Article and Find Full Text PDFDonor-derived cell-free DNA in chronic lung allograft dysfunction phenotypes: a pilot study.
Front Transplant
December 2024
Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of CHROMETA, KU Leuven, Leuven, Belgium.
Long-term survival after lung transplantation is limited due to chronic lung allograft dysfunction (CLAD), which encompasses two main phenotypes: bronchiolitis obliterans syndrome (BOS) and restrictive allograft syndrome (RAS). Donor-derived cell-free DNA (dd-cfDNA) is a biomarker for (sub)clinical allograft injury and could be a tool for monitoring of lung allograft health across the (pre)clinical spectrum of CLAD. In this proof-of-concept study, we therefore assessed post-transplant plasma dd-cfDNA levels in 20 CLAD patients (11 BOS and 9 RAS) at three consecutive time points free from concurrent infection or acute rejection, during stable condition, preclinical CLAD, and established CLAD ( = 3 × 20 samples).
View Article and Find Full Text PDFDisorders in pulmonary vascular integrity are a prominent feature in many lung diseases. Paracrine signaling is highly enriched in the lung and plays a crucial role in regulating vascular homeostasis. However, the specific local cell-cell crosstalk signals that maintain pulmonary microvascular stability in adult animals and humans remain largely unexplored.
View Article and Find Full Text PDFis the etiologic agent of invasive aspergillosis, a life- threatening fungal pneumonia that is initiated by the inhalation of conidia (spores) into the lung. If the conidia are not cleared, they secrete large quantities of hydrolytic enzymes and toxins as they grow, resulting in extensive damage to pulmonary tissue. Stromal fibroblasts are central responders to tissue damage in many organs, but their functional response to pulmonary injury caused by has not been explored.
View Article and Find Full Text PDFEffects of different antiplatelet therapy drugs on platelet activation and platelet-leukocyte aggregate formation in early septic ARDS.
BMC Pharmacol Toxicol
January 2025
Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.
Background: In patients with sepsis, platelets are activated and adhere to neutrophils, forming platelet-leukocyte aggregates (PLAs) that lead to the development of MODS. ARDS is one of the main manifestations of septic MODS. We designed this study to explore the effects of different anti-plate therapy drugs on platelet activation and platelet-leukocyte aggregate (PLA) formation in the early stage of septic ARDS.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!