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Vanreusel I, Vermeulen D, Goovaerts I, Stoop T, Ectors B, Cornelis J, Hens W, de Bliek E, Heuten H, Van Craenenbroeck EM, Van Berendoncks A, Segers VFM, Briedé JJ. Circulating Reactive Oxygen Species in Adults with Congenital Heart Disease. Antioxidants (Basel) 2022; 11:antiox11122369. [PMID: 36552576 PMCID: PMC9774177 DOI: 10.3390/antiox11122369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
Oxidative stress is an important pathophysiological mechanism in the development of numerous cardiovascular disorders, but few studies have examined the levels of oxidative stress in adults with congenital heart disease (CHD). The objective of this study was to investigate oxidative stress levels in adults with CHD and the association with inflammation, exercise capacity and endothelial function. To this end, 36 adults with different types of CHD and 36 age- and gender-matched healthy controls were enrolled. Blood cell counts, hs-CRP, NT-proBNP, fasting glucose, cholesterol levels, iron saturation and folic acid concentrations were determined in venous blood samples. Levels of superoxide anion radical in whole blood were determined using electron paramagnetic resonance spectroscopy in combination with the spin probe CMH. Physical activity was assessed with the IPAQ-SF questionnaire. Vascular function assessment (EndoPAT) and cardiopulmonary exercise testing were performed in the patient group. Superoxide anion radical levels were not statistically significantly different between adults with CHD and the matched controls. Moreover, oxidative stress did not correlate with inflammation, or with endothelial function or cardiorespiratory fitness in CHD; however, a significant negative correlation with iron saturation was observed. Overall, whole blood superoxide anion radical levels in adults with CHD were not elevated, but iron levels seem to play a more important role in oxidative stress mechanisms in CHD than in healthy controls. More research will be needed to improve our understanding of the underlying pathophysiology of CHD.
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Affiliation(s)
- Inne Vanreusel
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
- Correspondence: ; Tel.: +32-3-821-38-47
| | - Dorien Vermeulen
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Inge Goovaerts
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Tibor Stoop
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Bert Ectors
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Jacky Cornelis
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Wendy Hens
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Cardiac Rehabilitation Centre, Antwerp University Hospital, 2650 Edegem, Belgium
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, MOVANT Research Group, University of Antwerp, 2000 Antwerp, Belgium
| | - Erwin de Bliek
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
- Cardiac Rehabilitation Centre, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Hilde Heuten
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
| | - Emeline M. Van Craenenbroeck
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
| | - An Van Berendoncks
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
| | - Vincent F. M. Segers
- Department of Cardiology, Antwerp University Hospital, 2650 Edegem, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2000 Antwerp, Belgium
| | - Jacob J. Briedé
- Department of Toxicogenomics, School of Oncology and Developmental Biology (GROW), Maastricht University, 6211 MD Maastricht, The Netherlands
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Fu RH, Yang PH, Chiang MC, Chiang CC, Cho YH, Chou YH. Erythrocyte Cu/Zn Superoxide Dismutase Activity in Preterm Infants with and without Bronchopulmonary Dysplasia. Neonatology 2005; 88:35-41. [PMID: 15767740 DOI: 10.1159/000084456] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Accepted: 11/30/2004] [Indexed: 11/19/2022]
Abstract
BACKGROUND Erythrocyte Cu/Zn superoxide dismutase is believed to play a major role as a first-line antioxidant defense. Studies have reported varying results from measures of superoxide dismutase activity in cord blood samples from neonates. OBJECTIVE The study goal was to assess enzyme activity for preterm infants representing a range of gestational ages during the 1st week of life. Clinical data were obtained and correlations with superoxide dismutase activity were examined. METHODS We collected blood samples from umbilical arterial lines or the radial artery of 44 preterm infants (gestational age range 25-30 weeks) on days 1, 3, and 6 after delivery and evaluated erythrocyte Cu/Zn superoxide dismutase activity. RESULTS There was no correlation between enzyme activity and gestational age or birth weight. Superoxide dismutase activity gradually increased in preterm infants with bronchopulmonary dysplasia on days 3 and 6, with levels significantly higher than those of preterm infants without bronchopulmonary dysplasia on day 6. We found that packed red cell transfusion did not affect erythrocyte superoxide dismutase activity in either group. However, higher cumulative oxygen administration was noted in preterm infants with bronchopulmonary dysplasia. CONCLUSION Higher cumulative oxygen administration may be one factor that upregulates the activity of erythrocyte superoxide dismutase.
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Affiliation(s)
- Ren-Huei Fu
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
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Peskin AV, Winterbourn CC. A microtiter plate assay for superoxide dismutase using a water-soluble tetrazolium salt (WST-1). Clin Chim Acta 2000; 293:157-66. [PMID: 10699430 DOI: 10.1016/s0009-8981(99)00246-6] [Citation(s) in RCA: 351] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A simple and reproducible microtiter plate assay for measuring superoxide dismutase (SOD) activity is described. Water-soluble tetrazolium, the sodium salt of 4-[3-(4iodophenyl)-2-(4-nitrophenyl)-2H-5-tetrazolio]-1,3-be nzene disulfonate, was used as a detector of superoxide radical generated by xanthine oxidase and hypoxanthine, in the presence of a range of concentrations of superoxide dismutase. A major advantage of the assay is that one reaction mixture is prepared and aliquotted into wells, avoiding pipetting errors and variable xanthine oxidase activity between samples. Inclusion of standardized SOD solution in each run enables inter-assay comparability without requiring a constant superoxide generation rate under all occasions. The assay is applicable for chloroform-ethanol red cell extracts as well as tissue homogenates without high-speed centrifugation. Fifty percent inhibition of formazan formation was achieved at 2.4+/-0.1 ng of Cu, ZnSOD per well with the coefficient of variation 4.2%.
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Affiliation(s)
- A V Peskin
- Free Radical Research Group, Department of Pathology, Christchurch School of Medicine, P.O. Box 4345, Christchurch, New Zealand
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