The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Systemic Oxidative Stress in Asthma, COPD, and Smokers
Abstract
An imbalance between oxidants and antioxidants is proposed in smokers and in patients with airways diseases. We tested this hypothesis by measuring the Trolox equivalent antioxidant capacity (TEAC) of plasma and the levels of products of lipid peroxidation as indices of overall oxidative stress. The plasma TEAC was markedly reduced (0.66 +/- 0.07 mmol/L; mean +/- SEM; n = 11), with increased levels of lipid peroxidation products, in healthy chronic smokers as compared with healthy nonsmokers (1.31 +/- 0.10 mmol/L, n = 14, p < 0.001), an effect that was exaggerated in those who had smoked 1 h before the study. Plasma TEAC was also low in patients presenting with acute exacerbations of chronic obstructive pulmonary disease (COPD) (0.46 +/- 0.10 mmol/L, n = 20, p < 0.001) or asthma (0.61 +/- 0.05 mmol/L, n = 9, p < 0.01) with increases in plasma lipid peroxidation products. There was a negative correlation between superoxide anion release by stimulated neutrophils and plasma antioxidant capacity (r = -0.73, p < 0.001) in patients with acute exacerbations of COPD. The profound decrease in TEAC was associated with a decreased plasma protein sulfhydryl concentrations in acute exacerbations of COPD but not in smokers or in asthmatic subjects. Therefore smoking, acute exacerbations of COPD, and asthma are associated with a marked oxidant/antioxidant imbalance in the blood, associated with evidence of increased oxidative stress. The decreased antioxidant capacity in plasma may result from different mechanisms in these conditions.
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“Subjects who develop COPD, an important cause of respiratory mortality, may have weakened antioxidant defenses (Rahman et al. 1996), and PM2.5 can produce oxidative stress, in part because of lung inflammation (Dagher et al. 2005; Zeka et al. 2006).”
From Differentiating the effects of fine and coarse particles on daily mortality in Shanghai, China (2007) · cites this paper as Rahman et al. 1996
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Metadata
- Authors
- Rahman, I., Morrison, D., Donaldson, K., & MacNee, W.
- Affiliations
- Edinburgh Royal Infirmary (GB)
- Venue
- American Journal of Respiratory and Critical Care Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 1996-10-01
- Volume
- 154
- Issue
- 4
- Pages
- 1055-1060
- ISSN
- 1073-449X (ISSN-L)
- 1535-4970
- OpenAlex
- W1984454286
- Cited by
- 774
- References
- 30
- Citations by year
- 2026: 1 · 2025: 9 · 2024: 9 · 2023: 13 · 2022: 15 · 2021: 16 · 2020: 23 · 2019: 18 · 2018: 16 · 2017: 24 · 2016: 20 · 2015: 28 · 2014: 27 · 2013: 25 · 2012: 33
- FWCI
- 12.55
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Respiratory and Critical Care Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Biochemistry (medical) › Antioxidant Activity and Oxidative Stress
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Asthma and respiratory diseases
- Keywords
- oxidative stress, asthma, chronic obstructive pulmonary disease, COPD exacerbations, smoking, plasma antioxidant capacity, lipid peroxidation, superoxide, neutrophils, protein sulfhydryl groups, oxidant-antioxidant imbalance
- MeSH terms
- Adult, Aged, Asthma, Female, Humans, Lipid Peroxides, Lung Diseases, Obstructive, Male, Middle Aged, Smoking, Sulfhydryl Compounds, Superoxides, Lipid Peroxidation, Case-Control Studies, Oxidative Stress
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