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Janetzki JL, Sykes MJ, Ward MB, Pratt NL. Chronic Obstructive Pulmonary Disease Adverse Event Signals Associated with Potential Inhibitors of Glutathione Peroxidase 1: A Sequence Symmetry Analysis. Drug Saf 2024; 47:59-70. [PMID: 37995048 DOI: 10.1007/s40264-023-01374-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND AND OBJECTIVE Prior molecular modelling analysis identified several medicines as potential inhibitors of glutathione peroxidase 1 (GPx1) which may contribute to development or progression of chronic obstructive pulmonary disease (COPD). This study investigates 40 medicines (index medicines) for signals of COPD development or progression in a real-world dataset. METHODS Sequence symmetry analysis (SSA) was conducted using a 10% extract of Australian Pharmaceutical Benefits Scheme (PBS) claims data between January 2013 and September 2019. Patients must have been initiated on an index medicine and a medicine for COPD development or progression within 12 months of each other. Sequence ratios were calculated as the number of patients who initiated an index medicine followed by a medicine for COPD development or progression divided by the number who initiated the index medicine second. An adjusted sequence ratio (aSR) was calculated which accounted for changes in prescribing trends. Adverse drug event signals (ADEs) were identified where the aSR lower 95% confidence interval (CI) was greater than 1. RESULTS Twenty-one of 40 (53%) index medicines had at least one ADE signal of COPD development or progression. Signals of COPD development, as identified using initiation of tiotropium, were observed for atenolol (aSR 1.32, 95% CI 1.23-1.42) and naproxen (aSR 1.14, 95% CI 1.06-1.23). Several signals of COPD progression were observed, including initiation of fluticasone propionate/salmeterol following initiation of atenolol (aSR 1.44, 95% CI 1.30-1.60) and initiation of aclidinium/formoterol following initiation of naproxen (aSR 2.21, 95% CI 1.34-3.65). CONCLUSION ADE signals were generated for several potential GPx1 inhibitors; however, further validation of signals is required in large well-controlled observational studies.
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Affiliation(s)
- Jack L Janetzki
- UniSA: Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| | - Matthew J Sykes
- UniSA: Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Michael B Ward
- UniSA: Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Nicole L Pratt
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
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Cordiano R, Di Gioacchino M, Mangifesta R, Panzera C, Gangemi S, Minciullo PL. Malondialdehyde as a Potential Oxidative Stress Marker for Allergy-Oriented Diseases: An Update. Molecules 2023; 28:5979. [PMID: 37630231 PMCID: PMC10457993 DOI: 10.3390/molecules28165979] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/05/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Malondialdehyde (MDA) is a compound that is derived from the peroxidation of polyunsaturated fatty acids. It has been used as a biomarker to measure oxidative stress in various biological samples in patients who are affected by a wide range of diseases. The aim of our work is to provide an updated overview of the role of MDA as a marker of oxidative stress in allergy-related diseases. We considered studies involving both paediatric and adult patients affected by rhinitis, asthma, urticaria and atopic dermatitis. The measurement of MDA was performed on different types of samples. The reported data highlight the role of serum MDA in inflammatory airway diseases. According to the literature review, the oxidative stress status in asthmatic patients, assessed via MDA determination, appears to worsen in the presence of other allergic airway diseases and in relation to the disease severity. This suggests that MDA can be a suitable marker for monitoring the disease status. However, there are several limitations in the considered studies due to the different samples used and the lack of phenotyping and description of the clinical period of patients examined. In cutaneous allergic diseases, the role of MDA is controversial because of the smallness of the studies and the heterogeneity of the samples and patients.
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Affiliation(s)
- Raffaele Cordiano
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (S.G.); (P.L.M.)
| | - Mario Di Gioacchino
- Center of Advanced Science and Technology (CAST), G. D’Annunzio University, 66100 Chieti, Italy;
- YDA—Institute of Clinical Immunotherapy and Advanced Biological Treatments, 65121 Pescara, Italy
| | - Rocco Mangifesta
- Center of Advanced Science and Technology (CAST), G. D’Annunzio University, 66100 Chieti, Italy;
| | - Claudia Panzera
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (S.G.); (P.L.M.)
| | - Sebastiano Gangemi
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (S.G.); (P.L.M.)
| | - Paola Lucia Minciullo
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (R.C.); (C.P.); (S.G.); (P.L.M.)
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Kurt OK, Ergun D, Anlar HG, Hazar M, Aydin Dilsiz S, Karatas M, Basaran N. Evaluation of Oxidative Stress Parameters and Genotoxic Effects in Patients With Work-Related Asthma and Silicosis. J Occup Environ Med 2023; 65:146-151. [PMID: 36075368 DOI: 10.1097/jom.0000000000002701] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To determine the mechanistic roles of oxidative stress, inflammation, and genotoxicity parameters in patients with work-related asthma (WRA) and silicosis. METHODS Thirty-eight healthy office workers, 27 employees with a history of exposure and no disease, 24 employees with WRA, and 23 employees with silicosis were included in this study. Superoxide dismutase, catalase, glutathione peroxidase, malondialdehyde, and interleukins (IL) 17, 23, and 27 levels were measured in the serum. Genotoxic damage was evaluated by calculating the frequency of micronuclei in swab samples and 8-hydroxy-2'-deoxyguanosine in serum. RESULTS Serum superoxide dismutase, catalase, glutathione peroxidase, malondialdehyde, 8-hydroxy-2'-deoxyguanosine, and IL-17, IL-23, and IL-27 levels were found to be statistically significantly higher in the exposure, WRA, and silicosis groups compared with the control group. The frequency of micronuclei in buccal epithelial cells of the patient group was found to be significantly higher than that of the control group. CONCLUSION These results may provide information for molecular mechanisms and early diagnosis of WRA and silicosis and will be a guide for taking precautions in the early period.
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Affiliation(s)
- Ozlem Kar Kurt
- From the Department of Pulmonary Medicine and Occupational Medicine, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, Istanbul, Turkey (Dr Ozlem Kar); Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey (Drs Ozlem Kar, Dilsiz, and Basaran); Department of Pulmonary Medicine, Faculty of Medicine, Selcuk University, Konya, Turkey (Dr Ergun); Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Bulent Ecevit University, Zonguldak, Turkey (Anlar); Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Ibrahim Cecen University, Agri, Turkey (Ms Hazar); Department of Pulmonary Medicine, Occupational and Environmental Diseases Hospital, Ankara, Turkey (Dr Karatas); and Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Baskent University, Ankara, Turkey (Dr Basaran)
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Evidence on the Heroin-Mediated Impairment of the Oxidative Status of Erythrocytes. J Toxicol 2022; 2022:3996051. [PMID: 36212505 PMCID: PMC9534711 DOI: 10.1155/2022/3996051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/12/2022] [Indexed: 11/18/2022] Open
Abstract
Away from hemorheological properties, the effect of heroin addiction on erythrocytes is poorly investigated. This study aimed to investigate the oxidative impacts of heroin administration on erythrocytes. Study subjects included chronic intravenous heroin addicts and control subjects. Hematological analysis and redox parameters were measured, including serum concentration of methemoglobin ([MethHb]), serum glutathione peroxidase-1 ([GPX-1]), serum glutathione peroxidase (GPX) activity, erythrocytic protein carbonyl content, and oxidized to reduced glutathione (GSSG/GSH) ratio. Hematological analysis revealed that addicts had a significantly higher red cell distribution width, consistent with the mild anisocytosis and poikilocytosis of erythrocytes. As compared to control subjects, significantly higher levels of serum [Met-Hb], [GPX-1], and GPX activity (
) were reported among addicted subjects. A significant association between [MetHb] and GPX activity was observed with r = 0.764 (
). Furthermore, significantly higher erythrocytic protein carbonyl contents and GSSG/GSH ratio were evident among heroin addicts (
) that were significantly associated with r = 0.429 (
). Results demonstrate preliminary evidence that heroin addiction is implicated in impaired redox status of erythrocytes. Considering the pharmacokinetics of heroin, erythrocytic antioxidant mechanisms, and turnover rate, further investigation is required to evaluate the extent and clinical outcomes, especially upon over-dose administration.
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Mineral Micronutrients in Asthma. Nutrients 2021; 13:nu13114001. [PMID: 34836256 PMCID: PMC8625329 DOI: 10.3390/nu13114001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/07/2021] [Accepted: 11/08/2021] [Indexed: 01/01/2023] Open
Abstract
Asthma represents one of the most common medical issues in the modern world. It is a chronic inflammatory disease characterized by persistent inflammation of the airways and disturbances in redox status, leading to hyperresponsiveness of bronchi and airway obstruction. Apart from classical risk factors such as air pollution, family history, allergies, or obesity, disturbances of the levels of micronutrients lead to impairments in the defense mechanisms of the affected organism against oxidative stress and proinflammatory stimuli. In the present review, the impact of micronutrients on the prevalence, severity, and possible risk factors of asthma is discussed. Although the influence of classical micronutrients such as selenium, copper, or zinc are well known, the effects of those such as iodine or manganese are only rarely mentioned. As a consequence, the aim of this paper is to demonstrate how disturbances in the levels of micronutrients and their supplementation might affect the course of asthma.
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Laustsen BH, Omland Ø, Würtz ET, Jørgensen L, Bønløkke JH. Serum selenium levels and asthma among seafood processing workers in Greenland. Int J Circumpolar Health 2021; 80:1972525. [PMID: 34455939 PMCID: PMC8409947 DOI: 10.1080/22423982.2021.1972525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Selenium levels in the Inuit population of Greenland have been declining during the last decades. The association between Selenium and asthma has been investigated previously, but with conflicting results. The objective was to measure human serum Se (s-Se) in Greenlandic seafood processing workers, to compare with levels recorded in previous decades and to establish if s-Se is associated with asthma or lung function. Data, including questionnaire answers, spirometry, skin-prick test and s-Se from 324 seafood processing workers in Greenland were collected during 2016-2017. Mean s-Se values were compared by t-test and one-way ANOVA. Associations between s-Se and asthma, symptoms from the lower airways at work and lung function were assessed using linear regression. The mean s-Se was 96.2 µg/L. S-Se was higher among non-smokers and workers living in settlements. Workers with asthma did not have s-Se levels significantly different from those of non-asthmatics. We found a positive association between s-Se levels and FEV1 values. Selenium levels appear to continue declining in Greenland, presumably because of a more Westernised lifestyle. The health effects of declining Selenium levels remain unclear. We did not establish an association between s-Se and asthma, but we did record a positive association between s-Se and FEV1.
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Affiliation(s)
- Birgitte Hamann Laustsen
- Department of Clinical Medicine, the Faculty of Medicine, Danish Ramazzini Centre, Aalborg University, Aalborg, Denmark.,Institute of Nursing & Health Science, Ilisimatusarfik, University of Greenland, Greenland
| | - Øyvind Omland
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Else Toft Würtz
- Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark
| | - Louise Jørgensen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Jakob Hjort Bønløkke
- Department of Occupational and Environmental Medicine, Danish Ramazzini Centre, Aalborg University Hospital, Denmark
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Panday S, Talreja R, Kavdia M. The role of glutathione and glutathione peroxidase in regulating cellular level of reactive oxygen and nitrogen species. Microvasc Res 2020; 131:104010. [PMID: 32335268 DOI: 10.1016/j.mvr.2020.104010] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 12/23/2022]
Abstract
Glutathione (GSH) and GSH/glutathione peroxidase (GPX) enzyme system is essential for normal intracellular homeostasis and gets disturbed under pathophysiologic conditions including endothelial dysfunction. Overproduction of reactive oxidative species (ROS) and reactive nitrogen species (RNS) including superoxide (O2•-), and the loss of nitric oxide (NO) bioavailability is a characteristic of endothelial dysfunction. The GSH/GPX system play an important role in eliminating ROS/RNS. Studies have provided important information regarding the interactions of ROS/RNS with the GSH/GPX in biological systems; however, it is not clear how this cross talk affect these reactive species and GSH/GPX enzyme system, under physiologic and oxidative/nitrosative stress conditions. In the present study, we developed a detailed endothelial cell kinetic model to understand the relationship amongst the key enzyme systems including GSH, GPX, peroxiredoxin (Prx) and reactive species, such as hydrogen peroxide (H2O2), peroxynitrite (ONOO-), and dinitrogen trioxide (N2O3). Our simulation results showed that the alterations in the generation rates of O2•- and NO led to the formation of a wide range of ROS and RNS. Simulations performed by varying the ratio of O2•- to NO generation rates as well as GSH and GPX concentrations showed that the GPX reducing capacity was dependent on GSH availability, level of oxidative/nitrosative stress, and can be attributed to N2O3 levels, but not to H2O2 and ONOO-. Our results showed that N2O3 mediated switch-like depletion in GSH and the incorporation of Prx had no considerable effect on the ROS/RNS species other than ONOO- and H2O2. The analysis presented in this study will improve our understanding of vascular diseases in which the levels and oxidation states of GSH, GPX and/or Prx are significantly altered and pharmacological interventions show limited benefits.
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Affiliation(s)
- Sheetal Panday
- Department of Biomedical Engineering, Wayne State University, Detroit, MI 48202, United States of America
| | - Raghav Talreja
- Department of Biomedical Engineering, Wayne State University, Detroit, MI 48202, United States of America
| | - Mahendra Kavdia
- Department of Biomedical Engineering, Wayne State University, Detroit, MI 48202, United States of America.
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Lower circulating zinc and selenium levels are associated with an increased risk of asthma: evidence from a meta-analysis. Public Health Nutr 2019; 23:1555-1562. [PMID: 31685060 DOI: 10.1017/s1368980019003021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Previous studies evaluating the associations of circulating Zn and Se levels with asthma have produced inconsistent results. Therefore, we conducted a meta-analysis to summarize and quantitatively synthesize the evidence from observational research. DESIGN Meta-analysis. SETTING We searched PubMed, Web of Science and Scopus databases up to May 2019 for relevant available articles. Random-effects model was adopted to estimate the pooled standardized mean difference (SMD) with 95 % CI. Meta-regression analysis and 'leave-one-out' sensitivity analysis were used to assess heterogeneity. PARTICIPANTS The meta-analysis focused on general populations. RESULTS A total of twenty-six studies for Zn and forty studies for Se were included in the meta-analysis. The overall analyses identified that asthma patients had lower Zn (SMD = -0·40; 95 % CI -0·77, -0·03; I2 = 94·1 %) and Se (SMD = -0·32; 95 % CI -0·48, -0·17; I2 = 90·9 %) levels in serum or plasma compared with healthy controls. After removing the studies that contributed to the heterogeneity, the pooled SMD were -0·26 (95 % CI -0·40, -0·13; I2 = 37·42 %) for Zn and -0·06 (95 % CI -0·13, 0·02; I2 = 43·54 %) for Se. CONCLUSIONS Lower circulating Zn and Se levels might be associated with an increased risk of asthma.
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Mao S, Wu L, Shi W. Association between trace elements levels and asthma susceptibility. Respir Med 2018; 145:110-119. [PMID: 30509699 DOI: 10.1016/j.rmed.2018.10.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND It is well-documented that the dysregulation of trace elements may be involved in the pathogenesis of asthma. However, the precise changes of trace elements levels in asthma cases remain elusive. We established whether trace elements levels were associated with asthma susceptibility by pooling case-control studies. METHODS 34 studies were included. We extracted the standard mean differences (SMDs) and corresponding 95% confidence intervals (CIs). A pooled-analysis was performed. RESULTS No marked difference (95% CI: -1.437-0.218, p = 0.149) of Se level between asthma and controls. Significant difference (95% CI: 0.112-1.032, p = 0.015; 95% CI: 0.376-1.331, p < 10-4) of Cu level between asthma and controls was noted among overall populations and Asians. No marked difference of Zn level between asthma and controls was observed among overall populations, Asians, Caucasians and Africans. Significant difference (95% CI: -0.567 to -0.238, p < 10-4) of Mg level between asthma and controls was noted among Asians. Marked difference (95% CI: 0.258-2.864, p = 0.019; 95% CI: 0.270-3.282, p = 0.021) of Fe level between asthma and controls was noted among overall populations and Asians. Age had no impact on the pooled SMDs of Se, Cu, Zn, Mg and Fe between asthma and controls. Sensitivity analyses did not change the overall results. No publication bias was noted for overall populations. CONCLUSIONS Alterations of Cu, Mg and Fe levels may be a biomarker of asthma risk among specific populations. Further studies should be performed to clarify the strength of these elements in asthma.
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Affiliation(s)
- Song Mao
- Department of Pediatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Liangxia Wu
- Department of Pediatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Wenjing Shi
- Department of Pediatrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Abstract
Ovalbumin-induced allergic lung inflammation (ALI) is a condition believed to be mediated by cytokines, extracellular matrix remodeling, and redox imbalance. In this study, we evaluated pulmonary function together with inflammatory markers as interleukin-4 (IL-4), myeloperoxidase (MPO), eosinophil cells, and redox markers in the lungs of BALB/c mice after ovalbumin (OVA) sensitization and challenge. Our results showed an increase in bronchial hyperresponsiveness stimulated by methacholine (Mch), inflammatory cell influx, especially eosinophils together with an increase of high mobility group box 1 (HMGB1) and altered lipid peroxidation (LP) and antioxidant defenses in the OVA group compared to the control group (p ≤ 0.5). Thus, we demonstrated that OVA-induced ALI altered redox status concomitantly with impaired lung function, which was associated with HMGB1 expression and proteolytic remodeling. Taken together all results found here, we may suggest HMGB1 is an important therapeutic target for asthma, once orchestrates the redox signaling, inflammation, and remodeling that contribute to the disease development.
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Ben Anes A, Ben Nasr H, Fetoui H, Bchir S, Chahdoura H, Yacoub S, Garrouch A, Benzarti M, Tabka Z, Chahed K. Alteration in systemic markers of oxidative and antioxidative status in Tunisian patients with asthma: relationships with clinical severity and airflow limitation. J Asthma 2015; 53:227-37. [PMID: 26516659 DOI: 10.3109/02770903.2015.1087559] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE This study aims to determine the systemic oxidant-antioxidant status in Tunisian patients with asthma. METHODS We evaluated the levels of malondialdehyde (MDA) as thiobarbituric acid complexes, total protein carbonyls (PCs) and advanced oxidation protein products (AOPP). The levels of total thiols, protein sulfhydryls, glutathione (GSH), together with hydrogen peroxide, ascorbic acid, iron and total antioxidant status (TAS) were colorimetrically estimated. Glutathione peroxidase (GSH-Px), catalase (CAT) and superoxide dismutase (SOD) activities were assessed in plasma and erythrocytes by spectrophotometry. We also determined the levels of nitric oxide (NO) and peroxynitrite in plasma from asthmatic patients and healthy controls. The volume of fractionated exhaled NO (FeNO) was evaluated by the Medisoft HypAir method. Estimation of DNA damage was determined using the comet assay. RESULTS Asthmatic patients showed increased levels of MDA in comparison to healthy controls (p < 0.001), while no significant difference was found in protein carbonyls (p = 0.79) and AOPP (p = 0.98). Patients with asthma also had significantly lower levels of total thiols (355.9 ± 15.72 versus 667.9 ± 22.65, p < 0.001), protein sulfhydryls (333.99 ± 16.41 versus 591.95 ± 24.28, p < 0.001) and glutathione (p < 0.001). They also showed decreased GSH-Px activity (p < 0.001), whereas no significant differences in measurements of catalase and SOD enzyme activities were observed between the two groups (respectively, p = 0.06 and p = 0.55). In addition, ascorbic acid and nitric oxide levels were decreased in asthmatics in comparison to controls (p < 0.01). CONCLUSIONS Our findings highlight that oxidative stress and defective anti-oxidative status are major alterations in Tunisian patients with asthma.
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Affiliation(s)
- Amel Ben Anes
- a Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie, de l'Intégré au Moléculaire, Biologie, Médecine et Santé, Université de Sousse , Sousse, Tunisia .,b Faculté des Sciences de Bizerte , Université de Carthage , Bizerte, Tunisia
| | - Hela Ben Nasr
- a Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie, de l'Intégré au Moléculaire, Biologie, Médecine et Santé, Université de Sousse , Sousse, Tunisia
| | - Hamadi Fetoui
- c Faculté des Sciences de Sfax , Unité de Recherche de Toxicologie-Microbiologie Environnementale et Santé (UR/11 ES70) , Sfax, Tunisia
| | - Sarra Bchir
- a Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie, de l'Intégré au Moléculaire, Biologie, Médecine et Santé, Université de Sousse , Sousse, Tunisia
| | - Hassiba Chahdoura
- d Génome, Diagnostic Immunitaire et valorisation, Unité de Recherche 03/UR/09-01, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir , Monastir, Tunisia
| | - Saloua Yacoub
- e Unité de Recherche, UR06SP05, Centre Régional de Transfusion Sanguine, CHU Farhat Hached , Sousse-Tunisia
| | | | - Mohamed Benzarti
- f Service de Pneumo-Allergologie, CHU Farhat Hached , Sousse-Tunisia , and
| | - Zouhair Tabka
- a Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie, de l'Intégré au Moléculaire, Biologie, Médecine et Santé, Université de Sousse , Sousse, Tunisia
| | - Karim Chahed
- a Unité de Recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie, de l'Intégré au Moléculaire, Biologie, Médecine et Santé, Université de Sousse , Sousse, Tunisia .,g Faculté des Sciences de Sfax , Université de Sfax , Sfax, Tunisia
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Mrowicka M, Zielinska-Blizniewska H, Milonski J, Olszewski J, Majsterek I. Evaluation of oxidative DNA damage and antioxidant defense in patients with nasal polyps. Redox Rep 2015; 20:177-83. [PMID: 25584923 DOI: 10.1179/1351000215y.0000000001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
OBJECTIVES The presence of inflammatory cells indicates the development of epithelial cell injury in nasal polyposis (NP) and the potential for production of high levels of reactive oxygen and nitrogen species. The aim of our study was to clarify the role of oxidative stress and antioxidant status in the deterioration accompanying NP. METHODS Twenty patients (11 men) aged 47.2 ± 17.0 years with nasal polyps were included in the study. Twenty healthy subjects (7 men) aged 48.2 ± 15.3 years formed the control group. The erythrocyte activities of antioxidant enzymes, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), and plasma nitric oxide (NO) concentrations were measured. An alkaline comet assay was used to determine the extent of blood lymphocyte DNA damage of oxidized purines as glicosylo-formamidoglicosylase (Fpg) sites, and oxidized pyrimidines as endonuclease III (Nth) sites. RESULTS A significant increase of NO (P < 0.05) and non-significant decreases of SOD (P > 0.05), CAT (P > 0.05), and GPx (P > 0.05) were seen in NP patients compared to healthy controls. The level of blood lymphocyte oxidative DNA damage in NP patients was significantly higher compared to the control group (P = 0.01). DISCUSSION The blood lymphocyte DNA damage level increased in patients with NP. Elevated DNA damage may be related to overproduction of reactive oxygen and nitrogen species and/or decreased antioxidant protection.
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Plasma glutathione peroxidase (GSH-Px) concentration is elevated in rheumatoid arthritis: a case–control study. Clin Rheumatol 2012; 31:1543-7. [DOI: 10.1007/s10067-012-2046-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Revised: 07/06/2012] [Accepted: 07/13/2012] [Indexed: 10/28/2022]
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Fitzpatrick AM, Jones DP, Brown LAS. Glutathione redox control of asthma: from molecular mechanisms to therapeutic opportunities. Antioxid Redox Signal 2012; 17:375-408. [PMID: 22304503 PMCID: PMC3353819 DOI: 10.1089/ars.2011.4198] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Revised: 01/22/2012] [Accepted: 01/22/2012] [Indexed: 12/11/2022]
Abstract
Asthma is a chronic inflammatory disorder of the airways associated with airway hyper-responsiveness and airflow limitation in response to specific triggers. Whereas inflammation is important for tissue regeneration and wound healing, the profound and sustained inflammatory response associated with asthma may result in airway remodeling that involves smooth muscle hypertrophy, epithelial goblet-cell hyperplasia, and permanent deposition of airway extracellular matrix proteins. Although the specific mechanisms responsible for asthma are still being unraveled, free radicals such as reactive oxygen species and reactive nitrogen species are important mediators of airway tissue damage that are increased in subjects with asthma. There is also a growing body of literature implicating disturbances in oxidation/reduction (redox) reactions and impaired antioxidant defenses as a risk factor for asthma development and asthma severity. Ultimately, these redox-related perturbations result in a vicious cycle of airway inflammation and injury that is not always amenable to current asthma therapy, particularly in cases of severe asthma. This review will discuss disruptions of redox signaling and control in asthma with a focus on the thiol, glutathione, and reduced (thiol) form (GSH). First, GSH synthesis, GSH distribution, and GSH function and homeostasis are discussed. We then review the literature related to GSH redox balance in health and asthma, with an emphasis on human studies. Finally, therapeutic opportunities to restore the GSH redox balance in subjects with asthma are discussed.
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Affiliation(s)
- Anne M Fitzpatrick
- Department of Pediatrics, Emory University, Atlanta, Georgia 30322, USA.
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Thomson CD, Wickens K, Miller J, Ingham T, Lampshire P, Epton MJ, Town GI, Pattemore P, Crane J. Selenium status and allergic disease in a cohort of New Zealand children. Clin Exp Allergy 2012. [DOI: 10.1111/j.1365-2222.2011.03924.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. D. Thomson
- Department of Human Nutrition; University of Otago; Dunedin
| | - K. Wickens
- Department of Medicine; University of Otago Wellington School of Medicine and Health Sciences; Wellington
| | - J. Miller
- Department of Human Nutrition; University of Otago; Dunedin
| | - T. Ingham
- Department of Medicine; University of Otago Wellington School of Medicine and Health Sciences; Wellington
| | - P. Lampshire
- Department of Medicine; University of Otago Wellington School of Medicine and Health Sciences; Wellington
| | - M. J. Epton
- Department of Medicine; Christchurch School of Medicine and Health Sciences; Christchurch
| | - G. I. Town
- Vice-Chancellor's Office; University of Canterbury; Christchurch
| | - P. Pattemore
- Department of Paediatrics; Christchurch School of Medicine and Health Sciences; Christchurch New Zealand
| | - J. Crane
- Department of Medicine; University of Otago Wellington School of Medicine and Health Sciences; Wellington
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Carneiro MFH, Rhoden CR, Amantéa SL, Barbosa F. Low concentrations of selenium and zinc in nails are associated with childhood asthma. Biol Trace Elem Res 2011; 144:244-52. [PMID: 21607705 DOI: 10.1007/s12011-011-9080-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 05/10/2011] [Indexed: 01/12/2023]
Abstract
The purpose of this study was to investigate possible associations between Zn, Se, Cu, Mn, and Co concentrations in nails and asthma in a young population from a Southern Brazil city. Additionally, correlations between these chemical elements among asthmatic and non-asthmatic children were evaluated. Before nail collection (n = 165), children were asked to complete the International Study of Asthma and Allergies in Childhood questionnaire. The concentrations of trace elements were determined by inductively coupled plasma mass spectrometry. The chi-square test was used to evaluate the association between element concentrations in nails and the respiratory outcome. To evaluate correlations between the elements, we used the Spearman correlation test. For all tests, the significance level was set at 95% (P ≤ 0.05). Children included in the highest quartile of nail Se and Zn concentration presented a fivefold decrease in the prevalence ratio of asthma while children in the lowest Se range presented an almost 2.5-fold increase in the asthma prevalence ratio. There were weak to strong correlations between Cu vs. Zn, Cu vs. Co, Cu vs. Se, Zn vs. Se, Zn vs. Mn, and Mn vs. Co in both asthmatic and non-asthmatic children. Interestingly, non-asthmatics also presented correlations between Co vs. Se and Zn. Taken together, our results clearly demonstrated an association between concentrations of selenium and zinc and childhood asthma and the usefulness of nail as a noninvasive matrix to detect minerals imbalance in asthma patients.
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Affiliation(s)
- Maria Fernanda Hornos Carneiro
- Laboratório de Toxicologia e Essencialidade de Metais, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Avenida do Café s/n, Monte Alegre, 14040-903, Ribeirão Preto, SP, Brazil
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Guo CH, Liu PJ, Hsia S, Chuang CJ, Chen PC. Role of certain trace minerals in oxidative stress, inflammation, CD4/CD8 lymphocyte ratios and lung function in asthmatic patients. Ann Clin Biochem 2011; 48:344-51. [PMID: 21546427 DOI: 10.1258/acb.2011.010266] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Asthma is associated with increased inflammation, oxidative stress and abnormal immune system function. We determined the distributions of several essential trace minerals and assessed their relationships to factors that are associated with the pathophysiological status of patients with mild/moderate asthma. METHODS We enrolled 25 asthmatic patients and 25 healthy subjects. We measured: blood trace minerals, zinc (Zn), copper (Cu) and selenium (Se); oxidative stress markers thiobarbituric acid reactive substances (TBARS); antioxidant enzyme activities; percentages of CD4 and CD8 lymphocyte subsets; high-sensitivity C-reactive protein (hs-CRP); and a lung function index (FEV1/FVC%). RESULTS Compared with healthy subjects, asthmatics had lower concentrations of Zn and Se; higher Cu concentrations, and Cu/Zn and Cu/Se ratios; and lower antioxidant enzyme glutathione peroxidase (GPx), glutathione reductase (GR) and catalase activities. Significantly increased concentrations of hs-CRP, TBARS and CD4/CD8 lymphocyte ratios were also observed. Furthermore, plasma TBARS or hs-CRP concentrations were negatively associated with Se concentrations, but were positively associated with Cu/Se ratios. CD4/CD8 lymphocyte ratios were inversely correlated with Se, while it was positively correlated with Cu/Se ratio. FEV1/FVC% was also significantly correlated with Se concentrations, and Cu/Se and Cu/Zn ratios. CONCLUSIONS Abnormal distributions of these trace minerals may aggravate oxidative damage and inflammation, increased CD4/CD8 lymphocyte ratios and decreased lung function in asthma.
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Affiliation(s)
- Chih-Hung Guo
- Institute of Biomedical Nutrition, Hung Kuang University, Taichung, Taiwan, Republic of China
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Malling TH, Sigsgaard T, Andersen HR, Frischknecht L, Deguchi Y, Skadhauge L, Sherson D, Thomsen G, Baelum J, Pedersen JK, Omland Ø. Sex determines the influence of smoking and gene polymorphism on glutathione peroxidase activity in erythrocytes. Scandinavian Journal of Clinical and Laboratory Investigation 2009; 69:295-302. [PMID: 19125369 DOI: 10.1080/00365510802632155] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Glutathione peroxidase 1 (GPX1) is one of the major oxidative enzymes. Our aim was to characterize factors influencing its activity and to determine whether or not the activity is associated with asthma. MATERIAL AND METHODS Serum selenium concentration was measured, GPX1 polymorphisms were genotyped and smoking history was obtained in a Danish population-derived case-base cohort of 1,191 subjects designed to evaluate risk factors for asthma. GPX1 activity was measured in 134 male and 164 female subjects equally distributed according to genotype of GPX1. Among these subjects, 82 (28 %) had doctor-diagnosed asthma. RESULTS The average serum selenium concentration was too low for optimal enzyme activity (mean (SE), 83.4 (0.76) ng/mL). GPX1 activity in men was lower than in women, 52.6 (0.66) and 56.4 (0.59) U/g protein, respectively (p<0.001). In men, activity was positively associated with serum selenium concentration (p = 0.005) and negatively associated with both active smoking (p = 0.009) and exposure to environmental tobacco smoke (p = 0.02). In women, activity was associated with genotypes with 59.2 (1.4), 56.0 (1.4) and 54.2 (1.4) U/g protein in the homozygote wild-type, the heterozygote and the homozygote variant type, respectively (p = 0.001). Doctor-diagnosed asthma was unrelated to GPX1 activity in either sex. CONCLUSION Determinants for activity in the oxidative enzyme GPX1 show marked differences between the sexes, but the activity is not associated with asthma. Sex ought to be taken into consideration when analysing the activity of the enzyme.
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Nadeem A, Masood A, Siddiqui N. Oxidant--antioxidant imbalance in asthma: scientific evidence, epidemiological data and possible therapeutic options. Ther Adv Respir Dis 2009; 2:215-35. [PMID: 19124374 DOI: 10.1177/1753465808094971] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Prevalence of asthma has increased considerably in recent decades throughout the world especially in developed countries. Airway inflammation is thought to be prime cause for repeated episodes of airway obstruction in asthmatics. Several studies have shown that reactive oxygen species (ROS) play a key role in initiation as well as amplification of inflammation in asthmatic airways. Excessive ROS production in asthma leads to alteration in key enzymatic as well as nonenzymatic antioxidants such as glutathione, vitamins C and E, beta-carotene, uric acid, thioredoxin, superoxide dismutases, catalase, and glutathione peroxidases leading to oxidant-antioxidant imbalance in airways. Oxidant-antioxidant imbalance leads to pathophysiological effects associated with asthma such as vascular permeability, mucus hypersecretion, smooth muscle contraction, and epithelial shedding. Epidemiological data also support the scientific evidence of oxidant-antioxidant imbalance in asthmatics. Therefore, the supplementation of antioxidants to boost the endogenous antioxidants or scavenge excessive ROS production could be utilized to dampen/prevent the inflammatory response in asthma by restoring oxidant-antioxidant balance. This review summarizes the scientific and epidemiological evidence linking asthma with oxidant-antioxidant imbalance and possible antioxidant strategies that can be used therapeutically for better management of asthma.
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Affiliation(s)
- Ahmed Nadeem
- Department of Physiology and Pharmacology, Health Sciences Center North West Virginia University Morgantown WV 26506, USA.
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