Observational studyBMC pulmonary medicine2021
Elevated levels of arginase activity are related to inflammation in patients with COPD exacerbation.
Observational study in BMC pulmonary medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Prolonged disturbances in citrulline metabolism following resistance exercise in COPD.Clinical nutrition (Edinburgh, Scotland) · 2025Trial
- Plasma kynurenine to tryptophan ratio and arginine as biomarkers associated with GOLD classification and predicting poor prognosis in patients with acute exacerbation of chronic obstructive pulmonary disease.Frontiers in medicine · 2026Article
- Targeting Arginine Metabolism in Immune Cells for the Treatment of Pulmonary Inflammatory Diseases.Current allergy and asthma reports · 2025Review
- Unraveling the Immune Landscape of Chronic Obstructive Pulmonary Disease: Insights into Inflammatory Cell Subtypes, Pathogenesis, and Treatment Strategies.International journal of molecular sciences · 2025Review
- The Role of Oxidative Stress and Antioxidants in Cardiovascular Comorbidities in COPD.Antioxidants (Basel, Switzerland) · 2023Review
- Regulating Polyamine Metabolism by miRNAs in Diabetic Cardiomyopathy.Current diabetes reports · 2021Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionWithin the pathogenesis of the chronic obstructive pulmonary disease (COPD) there are interactions between different inflammatory mediators that are enhanced during an exacerbation. Arginase is present in bronchial epithelial cells, endothelial, fibroblasts and alveolar macrophages, which make it a probable key enzyme in the regulation of inflammation and remodelling. We aimed to find a potential relationship between arginase activity, inflammatory mediators in COPD patients in stable phase and during exacerbations.
methodsWe performed a prospective, observational study of cases and controls, with 4 study groups (healthy controls, stable COPD, COPD during an exacerbation and COPD 3 months after exacerbation). We measured arginase, inflammation markers (IL-6, IL-8, TNF-∝, IFN-γ and C reactive protein), and mediators of immunity: neutrophils, monocytes, total TCD3 + lymphocytes (CD3ζ), CD4 + T cells, CD8 + T cells, NK cells.
resultsA total of 49 subjects were recruited, average age of 69.73 years (59.18% male). Arginase activity is elevated during an exacerbation of COPD, and this rise is related to an increase in IL-6 production. The levels of IL-6 and IL-8 remained elevated in patients with COPD at 3 months after hospital exacerbation. We did not find a clear relationship between arginase activity, immunity or with the degree of obstruction in COPD patients.
conclusionsArginase activity is elevated during an exacerbation of COPD, and it could be related to an increase in the production of IL-6. Levels of IL-6, IL-8, and arginase activity remain elevated in patients with COPD at 3 months after hospital exacerbation. Arginase activity could contribute to the development of COPD.
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