scholarly journals Oxidant-Antioxidant Balance in the Blood of Patients with Chronic Obstructive Pulmonary Disease After Smoking Cessation

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Alina Woźniak ◽  
Dariusz Górecki ◽  
Michał Szpinda ◽  
Celestyna Mila-Kierzenkowska ◽  
Bartosz Woźniak

The effect of smoking cessation on the oxidative stress in patients with chronic obstructive pulmonary disease (COPD) was assessed. We recruited 73 smokers with COPD (study group), whose blood was analysed before smoking cessation, after the 1st, 2nd, and 3rd months of abstinence, 35 healthy nonsmokers (Control I), and 35 smokers with COPD (Control II). Blood was taken once in Control I and 4 times (every month) in Control II. In the study group conjugated dienes (CDs) level in plasma and erythrocytes before smoking cessation was 3 and 6.5 times higher than in Control I, respectively (P<0.001), while thiobarbituric acid-reactive substances (TBARS) level was 89% (P<0.001) and 51% higher (P<0.01), respectively. Superoxide dismutase (SOD) activity was 40% higher (P<0.05) while glutathione peroxidase (GPx) was 41% lower (P<0.001) than in Control I. In Control II, the similar differences as compared to Control I were observed throughout the study. Smoking cessation resulted in decrease of CDs, TBARS, and SOD and GPx increase, with no changes in catalase and vitamins A and E. COPD is accompanied by oxidative stress. A three-month tobacco abstinence facilitated restoring the oxidant-antioxidant balance systemically, but it did not affect spirometric parameters.

2021 ◽  
Vol 31 (4) ◽  
pp. 456-462
Author(s):  
I. A. Umnyagina ◽  
L. A. Strakhova ◽  
T. V. Blinova ◽  
V. V. Troshin ◽  
V. D. Fedotov

The role of low-density oxidized lipoproteins (OxLDL) in the pathogenesis of occupational chronic obstructive pulmonary disease (COPD) is not understood well enough.The study aims to determine the serum levels of oxidized low-density lipoproteins and their relationship with lipid profile, the level of oxidative stress and level C-reactive protein in patients with occupational chronic obstructive pulmonary disease.Methods. 116 patients diagnosed with occupational COPD and 25 patients with no respiratory diseases (comparison group) were examined. Serum levels of OxLDL was determined by solid phase enzyme-linked immunosorbent assay (ELISA) using the commercial reagent kit MDA-oxLDL from Biomedica Gruppe, Austria.Results. Circulating OxLDL was detected in serum in a significant proportion of patients with stable occupational COPD. In most of the patients, the concentration of OxLDL was within the values observed in the comparison group or exceeded them by no more than two times. In the minority of patients with occupational COPD (16.5%), the concentration of OxLDL was high and 4 – 10 times higher than its average value in the comparison group. It can be assumed that the revealed differences in the concentration of OxLDL are due to the different degree and intensity of oxidation of low-density lipoproteins. The relationships between OxLDL and lipid metabolism, oxidative stress (OS), the antioxidant capacity of serum (AOS), and serum levels of C-reactive protein were described.Conclusion. Serum OxLDL levels in patients with occupational COPD, the relationship between OxLDL and lipid metabolism, oxidative stress, and inflammation will provide an expanded view of the pathogenetic aspects of occupational COPD.


Author(s):  
S.R. Hilberink ◽  
Johanna E Jacobs ◽  
Sanne Van Opstal ◽  
Trudy Van der Weijden ◽  
Janine Keegstra ◽  
...  

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