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Vlasceanu AM, Gradinaru D, Stan M, Nitescu VG, Baconi DL. Relationships between Serum Biomarkers of Oxidative Stress and Tobacco Smoke Exposure in Patients with Mental Disorders. Antioxidants (Basel) 2023; 12:1299. [PMID: 37372029 DOI: 10.3390/antiox12061299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/11/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023] Open
Abstract
The role of cigarette smoking as an aggravating factor of systemic oxidative stress in patients with mental disorders has not been extensively investigated, although significantly higher rates of smoking are recorded in these subjects in comparison with the general population. In the present study, we tested the hypothesis that smoking might be an exacerbator of systemic oxidative stress, being directly correlated with the degree of exposure to tobacco smoke. We analyzed, in 76 adult subjects from a public health care unit, the relationships between serum cotinine levels as a marker of tobacco smoke exposure, and three biomarkers of oxidative stress: the serum glutathione (GSH), the advanced oxidation protein products (AOPPs), and the total serum antioxidant status (FRAP). The results indicate that the degree of tobacco smoke exposure was inversely associated with GSH levels in both passive and active smokers, suggesting that smoke particulate components' toxicity is associated with a systemic GSH depletion. Paradoxically, the lowest AOPP levels which were positively associated with GSH, were recorded in active smoking patients whereas in passive smokers individual values of AOPPs decreased along with the increase in GSH levels. Our data suggest that an enhanced inhalation of particulate constituents of cigarette smoke could induce critical changes in systemic redox homeostasis and GSH can no longer exert its antioxidant role.
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Affiliation(s)
- Ana-Maria Vlasceanu
- Department of Toxicology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 37 Dionisie Lupu Street, Sector 2, 20021 Bucharest, Romania
| | - Daniela Gradinaru
- Department of Biochemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 37 Dionisie Lupu Street, Sector 2, 20021 Bucharest, Romania
| | - Miriana Stan
- Department of Toxicology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 37 Dionisie Lupu Street, Sector 2, 20021 Bucharest, Romania
| | - Viorela G Nitescu
- Emergency Clinical Hospital for Children Grigore Alexandrescu, Pediatric Clinic 2, Ward ATI -Toxicology, 30-32 Iancu de Hunedoara Street, 20021 Bucharest, Romania
| | - Daniela Luiza Baconi
- Department of Toxicology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 37 Dionisie Lupu Street, Sector 2, 20021 Bucharest, Romania
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Kayongo A, Robertson NM, Siddharthan T, Ntayi ML, Ndawula JC, Sande OJ, Bagaya BS, Kirenga B, Mayanja-Kizza H, Joloba ML, Forslund SK. Airway microbiome-immune crosstalk in chronic obstructive pulmonary disease. Front Immunol 2023; 13:1085551. [PMID: 36741369 PMCID: PMC9890194 DOI: 10.3389/fimmu.2022.1085551] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) has significantly contributed to global mortality, with three million deaths reported annually. This impact is expected to increase over the next 40 years, with approximately 5 million people predicted to succumb to COPD-related deaths annually. Immune mechanisms driving disease progression have not been fully elucidated. Airway microbiota have been implicated. However, it is still unclear how changes in the airway microbiome drive persistent immune activation and consequent lung damage. Mechanisms mediating microbiome-immune crosstalk in the airways remain unclear. In this review, we examine how dysbiosis mediates airway inflammation in COPD. We give a detailed account of how airway commensal bacteria interact with the mucosal innate and adaptive immune system to regulate immune responses in healthy or diseased airways. Immune-phenotyping airway microbiota could advance COPD immunotherapeutics and identify key open questions that future research must address to further such translation.
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Affiliation(s)
- Alex Kayongo
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Medicine, Center for Emerging Pathogens, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, NJ, United States
| | | | - Trishul Siddharthan
- Division of Pulmonary Medicine, School of Medicine, University of Miami, Miami, FL, United States
| | - Moses Levi Ntayi
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Josephine Caren Ndawula
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Obondo J. Sande
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bernard S. Bagaya
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bruce Kirenga
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Harriet Mayanja-Kizza
- Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses L. Joloba
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Sofia K. Forslund
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany,Experimental and Clinical Research Center, a cooperation of Charité - Universitatsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany,Charité-Universitatsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany,Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany,*Correspondence: Sofia K. Forslund,
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Diurnal Variation in Biomarkers of Exposure to Endocrine-Disrupting Chemicals and Their Association with Oxidative Damage in Norwegian Adults: The EuroMix Study. TOXICS 2022; 10:toxics10040181. [PMID: 35448442 PMCID: PMC9028082 DOI: 10.3390/toxics10040181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/27/2022] [Accepted: 04/02/2022] [Indexed: 11/23/2022]
Abstract
Much evidence on the adverse health effects of endocrine-disrupting chemicals (EDCs) has accumulated during recent decades. EDCs are commonly found in various foods and personal care products (PCP). Data documenting a diurnally varying EDC metabolism in humans is scarce. This study examined (i) the time-of-day effect on the diurnal magnitude and variance of urinary biomarkers of exposure to EDCs, and (ii) the association between EDC exposures and oxidative damage in a Norwegian adult subpopulation. This was a cross-sectional panel study using biobanked samples from the EuroMix project. During a typical weekday, participants were asked to collect all day’s urine voids and record dietary and PCP habitual uses in a diary. Collected time stamps of urine voids were classified into three distinct periods in the day (morning 6 a.m.−12 p.m., mid-day 12 p.m.−6 p.m., evening 6 p.m.−6 a.m.). Questionnaires regarding demographic characteristics, personal care product usage, and dietary habits were completed. Urinary levels of EDCs (phthalates, parabens, and bisphenols) were measured using mass spectrometry and adjusted for urinary volume using specific gravity. Urinary 4-hydroxynonenal (4HNE), a lipid peroxidation marker, was measured using an immunoassay kit. Linear mixed-effect models identified EDCs under the influence of a diurnal variation effect that was adjusted for dietary habits and PCP use and examined associations between EDC and 4HNE. p-values were FDR-adjusted. Most phthalates appeared to be diurnally varying with higher urinary levels towards the evening (q < 0.001) than those measured during mid-day; this strong diurnal variation effect was not present for parabens and bisphenols. Significant (q < 0.001) positive associations were observed between all phthalates, parabens, and bisphenols (except bisphenol S) and 4HNE. This study’s findings highlighted the diurnal variation of excretion for certain EDC, but not for others, in real-life conditions. The degree of EDC chronotoxicity in distinct diurnal windows of the day warrants further investigation with longitudinal human studies.
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Perea L, Cantó E, Suarez-Cuartin G, Aliberti S, Chalmers JD, Sibila O, Vidal S. A Cluster Analysis of Bronchiectasis Patients Based on the Airway Immune Profile. Chest 2020; 159:1758-1767. [PMID: 33217421 DOI: 10.1016/j.chest.2020.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Clinical heterogeneity in bronchiectasis remains a challenge for improving the appropriate targeting of therapies and patient management. Antimicrobial peptides (AMPs) have been linked to disease severity and phenotype. RESEARCH QUESTION Can we identify clusters of patients based on the levels of AMPs, airway inflammation, tissue remodeling, and tissue damage to establish their relationship with disease severity and clinical outcomes? STUDY DESIGN AND METHODS A prospective cohort of 128 stable patients with bronchiectasis were recruited across three centers in three different countries (Spain, Scotland, and Italy). A two-step cluster strategy was used to stratify patients according to levels of lactoferrin, lysozyme, LL-37, and secretory leukocyte protease inhibitor in sputum. Measurements of inflammation (IL-8, tumor growth factor β, and IL-6), tissue remodeling and damage (glycosaminoglycan, matrix metallopeptidase 9, neutrophil elastase, and total and bacterial DNA), and neutrophil chemotaxis were assessed. RESULTS Three clusters of patients were defined according to distinct airway profiles of AMPs. They represented groups of patients with gradually distinct airway infection and disease severity. Each cluster was associated with an airway profile of inflammation, tissue remodeling, and tissue damage. The relationships between soluble mediators also were distinct between clusters. This analysis allowed the identification of the cluster with the most deregulated local innate immune response. During follow-up, each cluster showed different risk of three or more exacerbations occurring (P = .03) and different times to first exacerbations (P = .03). INTERPRETATION Bronchiectasis patients can be stratified in different clusters according to profiles of airway AMPs, inflammation, tissue remodeling, and tissue damage. The combination of these immunologic variables shows a relationship with disease severity and future risk of exacerbations.
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Affiliation(s)
- Lídia Perea
- Department of Inflammatory Diseases, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Elisabet Cantó
- Department of Inflammatory Diseases, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Guillermo Suarez-Cuartin
- Respiratory Department, Hospital Universitari de Bellvitge, l'Hospitalet de Llobregat, Barcelona, Spain
| | - Stefano Aliberti
- Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - James D Chalmers
- Tayside Respiratory Research Group, University of Dundee, Dundee, Scotland
| | - Oriol Sibila
- Respiratory Department, Hospital Clinic, IDIBAPS, CIBERES, University of Barcelona, Barcelona, Spain
| | - Silvia Vidal
- Department of Inflammatory Diseases, Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.
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Clinical Application of Forced Oscillation Technique (FOT) in Early Detection of Airway Changes in Smokers. J Clin Med 2020; 9:jcm9092778. [PMID: 32867314 PMCID: PMC7565456 DOI: 10.3390/jcm9092778] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/24/2020] [Accepted: 08/24/2020] [Indexed: 01/31/2023] Open
Abstract
The forced oscillation technique (FOT) is a non-invasive method to assess airway function by emitting oscillatory signals into the respiratory tract during tidal ventilation. This opinion piece discusses the current use, trialled modification and future directions in utilizing FOT as a novel diagnostic tool for early detection of small airway changes in smokers. The published evidence to date has shown that FOT parameters could be a sensitive diagnostic tool to detect early respiratory changes in smokers. Multiple frequencies and the frequency dependence of resistance and reactance can provide the most valuable and early information regarding smoking induced changes in airways. Considering its non-invasiveness, lower level of discomfort to patients than spirometry, feasibility, and cost effectiveness, it could be the first-choice diagnostic technique for detection of early respiratory changes in smokers. The finding of FOT could further be supported and correlated with inflammatory markers.
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Gao J, Törölä T, Li CX, Ohlmeier S, Toljamo T, Nieminen P, Hattori N, Pulkkinen V, Iwamoto H, Mazur W. Sputum Vitamin D Binding Protein (VDBP) GC1S/1S Genotype Predicts Airway Obstruction: A Prospective Study in Smokers with COPD. Int J Chron Obstruct Pulmon Dis 2020; 15:1049-1059. [PMID: 32546996 PMCID: PMC7237691 DOI: 10.2147/copd.s234464] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 04/20/2020] [Indexed: 12/14/2022] Open
Abstract
Introduction The vitamin D binding protein (VDBP, also known as GC-globulin) and vitamin D deficiency have been associated with chronic obstructive pulmonary disease (COPD). rs7041 and rs4588 are two single nucleotide polymorphisms of the VDBP gene, including three common allelic variants (GC1S, GC1F and GC2). Previous studies primarily assessed the serum levels of vitamin D and VDBP in COPD. However, less is known regarding the impact of the local release of VDBP on COPD lung function. Thus, we examined the association of sputum and plasma VDBP with lung function at baseline and at four years, and examined potential genetic polymorphism interactions. Methods The baseline levels of sputum VDBP, plasma VDBP and plasma 25-OH vitamin D, as well as the GC rs4588 and rs7041 genotypes, were assessed in a 4-year Finnish follow-up cohort (n = 233) of non-smokers, and smokers with and without COPD. The associations between the VDBP levels and the longitudinal decline of lung function were further analysed. Results High frequencies of the haplotypes in rs7041/rs4588 were homozygous GC1S/1S (42.5%). Higher sputum VDBP levels in stage I and stage II COPD were observed only in carriers with GC1S/1S genotype when compared with non-smokers (p = 0.034 and p = 0.002, respectively). Genotype multivariate regression analysis indicated that the baseline sputum VDBP and FEV1/FVC ratio at baseline independently predicted FEV1% at follow-up. Discussion and Conclusion The baseline sputum VDBP expression was elevated in smokers with COPD among individuals with the GC1S/1S genotype, and predicted follow-up airway obstruction. Our results suggest that the GC polymorphism should be considered when exploring the potential of VDBP as a biomarker for COPD.
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Affiliation(s)
- Jing Gao
- Heart and Lung Centre, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tanja Törölä
- Heart and Lung Centre, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Chuan-Xing Li
- Pulmonomics Group, Respiratory Medicine Unit, Department of Medicine & Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Steffen Ohlmeier
- Proteomics Core Facility, Biocentre Oulu, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Tuula Toljamo
- Department of Pulmonary Medicine, Lapland Central Hospital, Rovaniemi, Finland
| | - Pentti Nieminen
- Medical Informatics and Statistics Group, University of Oulu, Oulu, Finland
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - Ville Pulkkinen
- Heart and Lung Centre, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - Witold Mazur
- Heart and Lung Centre, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Zhu H, Zhang R, Hao C, Yu X, Tian Z, Yuan Y. Fractional Exhaled Nitric Oxide (FeNO) Combined with Pulmonary Function Parameters Shows Increased Sensitivity and Specificity for the Diagnosis of Cough Variant Asthma in Children. Med Sci Monit 2019; 25:3832-3838. [PMID: 31120043 PMCID: PMC6543875 DOI: 10.12659/msm.913761] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Cough variant asthma in children presents with a dry nonproductive cough. This study aimed to investigate the diagnostic value of fractional exhaled nitric oxide (FeNO) combined with small airway functional parameters in cough variant asthma. Material/Methods Children with asthma (n=136) were divided into a cough variant asthma (CVA) group (n=57; mean age, 8.03±2.1 years) and a non-cough variant asthma (nCVA) group (n=79; mean age, 8.61±1.7 years). In both groups, FeNO and other pulmonary function parameters were measured including forced expiratory volume in one second (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF), maximum mid-expiratory flow (MMEF), forced expiratory flow (FEF), and maximum expiratory flow at 25%, 50%, and 75% expired volume (MEF25, MEF50, and MEF75). Receiver-operating characteristic (ROC) curve analysis compared the sensitivity and specificity between the diagnostic parameters. Results The FeNO values were significantly increased in the CVA group compared with the nCVA group (Z=6.890, p<0.001). The MMEF, MEF25, MEF50, and MEF75 values were significantly lower in the CVA group compared with the nCVA group (p=0.000, p=0.014, p=0.000, and p=0.000, respectively). The FeNO values were negatively correlated with MEF25, MEF50, and MMEF (r=−0.334, r=−0.257 and r=−0.276, respectively). FeNO was significantly more efficient diagnosing cough variant asthma comparing with pulmonary parameters (p<0.05), and was most sensitive and specific when combined with MMEF/MEF50 compared with single diagnostic parameters (p<0.05). Conclusions FeNO combined with pulmonary function parameters of MMEF/MEF50 showed increased sensitivity and specificity for the diagnosis of cough variant asthma.
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Affiliation(s)
- Haiyan Zhu
- Department of Pediatrics, The Affiliated Huaian No.1 Peoples' Hospital of Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| | - Rongrong Zhang
- Department of Pediatrics, The Affiliated Huaian No.1 Peoples' Hospital of Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| | - Chuangli Hao
- Department of Respiratory Diseases, Childrens' Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Xingmei Yu
- Department of Respiratory Diseases, Childrens' Hospital of Soochow University, Suzhou, Jiangsu, China (mainland)
| | - Zhaofang Tian
- Department of Pediatrics, The Affiliated Huaian No.1 Peoples' Hospital of Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
| | - Yufang Yuan
- Department of Pediatrics, The Affiliated Huaian No.1 Peoples' Hospital of Nanjing Medical University, Huai'an, Jiangsu, China (mainland)
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Núñez-Naveira L, Mariñas-Pardo LA, Montero-Martínez C. Mass Spectrometry Analysis of the Exhaled Breath Condensate and Proposal of Dermcidin and S100A9 as Possible Markers for Lung Cancer Prognosis. Lung 2019; 197:523-531. [PMID: 31115649 DOI: 10.1007/s00408-019-00238-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 05/11/2019] [Indexed: 02/06/2023]
Abstract
INTRODUCTION New sampling techniques to analyse lung diseases, such as exhaled breath condensate (EBC), are a breakthrough in research field since they are less invasive and less traumatic for the patients compared to lung biopsies. Nevertheless, there is an increasing need to optimize not only the sampling protocols but the storage and processing of specimens to get accurate results. METHODS Exhaled breath condensate was sampled employing the ECoScreen device. Concentrated protein was obtained after ultracentrifugation, lyophilization and reversed-phase chromatography. MALDI-time of flight (TOF)/TOF mass spectrometry (MS) was applied to determine the protein profile in EBC. Commercially available ELISA kits were used to detect the selected biomarker in the EBC after MALDI-MS proteins identification. RESULTS The obtained EBC volume after two periods of 10 min doubled the amount obtained after 20 min. One hundred peptides were detected by MALDI-MS, and 18 proteins were identified after reversed-phase chromatography concentration. Dermcidin (P81605), S100A9 (P06702) and Cathepsin G (P08311) were selected to be analysed by ELISA. Dermcidin and S100A9 expression were statistically higher in lung cancer versus healthy volunteers. VEGF concentrations decreased, respectively, by 5.94 and 11.42-fold after 1 and 2 years of frozen EBC preservation in parallel with the declined number of proteins identified by MALDI-MS. CONCLUSION Exhaled breath condensate analysis combined with MS technique may become a valuable method for lung cancer screening and Dermcidin and S100A9 may serve as biomarkers for lung cancer diagnosis or prognosis.
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Affiliation(s)
- Laura Núñez-Naveira
- University Hospital Complex of A Coruña (CHUAC), As Xubias de Arriba, 84, 15006, A Coruña, Spain.,Biomedical Research Institute of A Coruña (INIBIC), As Xubias de Arriba, 84, 15006, A Coruña, Spain
| | - Luis Antonio Mariñas-Pardo
- University Hospital Complex of A Coruña (CHUAC), As Xubias de Arriba, 84, 15006, A Coruña, Spain. .,Biomedical Research Institute of A Coruña (INIBIC), As Xubias de Arriba, 84, 15006, A Coruña, Spain.
| | - Carmen Montero-Martínez
- University Hospital Complex of A Coruña (CHUAC), As Xubias de Arriba, 84, 15006, A Coruña, Spain
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Pehlivan S, Uysal MA, Aydin N, Nursal AF, Pehlivan M, Yavuzlar H, Sever U, Kurnaz S, Yavuz FK, Uysal S, Aydin PC. XRCC4 rs6869366 polymorphism is associated with susceptibility to both nicotine dependence and/or schizophrenia. ARCH CLIN PSYCHIAT 2018. [DOI: 10.1590/0101-60830000000157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - Mehmet Atilla Uysal
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Nazan Aydin
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | | | | | - Hazal Yavuzlar
- Bakirkoy Research and Training Hospital for Psychiatry, Neurology and Neurosurgery, Turkey
| | | | | | - Fatih Kasım Yavuz
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Suna Uysal
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Pinar Cetinay Aydin
- Bakirkoy Research and Training Hospital for Psychiatry, Neurology and Neurosurgery, Turkey
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Suitability of biomarkers of biological effects (BOBEs) for assessing the likelihood of reducing the tobacco related disease risk by new and innovative tobacco products: A literature review. Regul Toxicol Pharmacol 2018; 94:203-233. [DOI: 10.1016/j.yrtph.2018.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 02/04/2018] [Accepted: 02/05/2018] [Indexed: 02/07/2023]
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11
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Lee JW, Ryu HW, Park SY, Park HA, Kwon OK, Yuk HJ, Shrestha KK, Park M, Kim JH, Lee S, Oh SR, Ahn KS. Protective effects of neem (Azadirachta indica A. Juss.) leaf extract against cigarette smoke- and lipopolysaccharide-induced pulmonary inflammation. Int J Mol Med 2017; 40:1932-1940. [PMID: 29039495 DOI: 10.3892/ijmm.2017.3178] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 09/25/2017] [Indexed: 11/05/2022] Open
Abstract
Neem (Azadirachta indica A. Juss.) leaf has been reported to exert anti-inflammatory, antibacterial and antioxidant effects. The purpose of this study was to investigate the protective effects of neem leaf extract (NLE) against cigarette smoke (CS)- and lipopolysaccharide (LPS)-induced pulmonary inflammation. Treatment with NLE significantly attenuated the infiltration of inflammatory cells, such as neutrophils and macrophages in bronchoalveolar lavage fluid (BALF). NLE also reduced the production of reactive oxygen species and the activity of neutrophil elastase in BALF. Moreover, NLE attenuated the release of pro-inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and interleukin (IL)-6 in BALF. NLE inhibited the recruitment of inflammatory cells and the expression of monocyte chemoattractant protein-1 (MCP-1) in the lungs of mice with CS- and LPS-induced pulmonary inflammation. NLE also decreased the expression of inducible nitric oxide synthase (iNOS) in the lungs of the mice CS- and LPS-induced pulmonary inflammation. Furthermore, treatment with NLE significantly attenuated the activation of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) in the lungs mice exposed to CS and LPS. NLE also inhibited the phosphorylation of nuclear factor (NF)-κB and inhibitor of NF-κB (IκB) in the lungs of mice expose to CS and LPS. These findings thus suggest that NLE has potential for use in the treatment of chronic obstructive pulmonary disease.
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Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - So-Yeon Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Hyun Ah Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Heung Joo Yuk
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Krishna K Shrestha
- Ethnobotanical Society of Nepal (ESON), Central Department of Botany, Tribhuvan University, Kathmandu 44618, Nepal
| | - Minwoo Park
- SciTech Korea, Gangbuk-gu, Seoul 142-705, Republic of Korea
| | - Jung Hee Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Sangwoo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju‑si, Chungbuk 363‑883, Republic of Korea
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Shields PG, Berman M, Brasky TM, Freudenheim JL, Mathe E, McElroy JP, Song MA, Wewers MD. A Review of Pulmonary Toxicity of Electronic Cigarettes in the Context of Smoking: A Focus on Inflammation. Cancer Epidemiol Biomarkers Prev 2017; 26:1175-1191. [PMID: 28642230 PMCID: PMC5614602 DOI: 10.1158/1055-9965.epi-17-0358] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 05/22/2017] [Accepted: 05/24/2017] [Indexed: 12/30/2022] Open
Abstract
The use of electronic cigarettes (e-cigs) is increasing rapidly, but their effects on lung toxicity are largely unknown. Smoking is a well-established cause of lung cancer and respiratory disease, in part through inflammation. It is plausible that e-cig use might affect similar inflammatory pathways. E-cigs are used by some smokers as an aid for quitting or smoking reduction, and by never smokers (e.g., adolescents and young adults). The relative effects for impacting disease risk may differ for these groups. Cell culture and experimental animal data indicate that e-cigs have the potential for inducing inflammation, albeit much less than smoking. Human studies show that e-cig use in smokers is associated with substantial reductions in blood or urinary biomarkers of tobacco toxicants when completely switching and somewhat for dual use. However, the extent to which these biomarkers are surrogates for potential lung toxicity remains unclear. The FDA now has regulatory authority over e-cigs and can regulate product and e-liquid design features, such as nicotine content and delivery, voltage, e-liquid formulations, and flavors. All of these factors may impact pulmonary toxicity. This review summarizes current data on pulmonary inflammation related to both smoking and e-cig use, with a focus on human lung biomarkers. Cancer Epidemiol Biomarkers Prev; 26(8); 1175-91. ©2017 AACR.
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Affiliation(s)
- Peter G Shields
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, and College of Medicine, Columbus, Ohio.
| | - Micah Berman
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, and College of Public Health, Ohio
| | - Theodore M Brasky
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, and College of Medicine, Columbus, Ohio
| | - Jo L Freudenheim
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York
| | - Ewy Mathe
- Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio
| | - Joseph P McElroy
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, Ohio
| | - Min-Ae Song
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, and College of Medicine, Columbus, Ohio
| | - Mark D Wewers
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
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Pharmacological and genetic reappraisals of protease and oxidative stress pathways in a mouse model of obstructive lung diseases. Sci Rep 2016; 6:39305. [PMID: 27982104 PMCID: PMC5159865 DOI: 10.1038/srep39305] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/22/2016] [Indexed: 01/01/2023] Open
Abstract
Protease-antiprotease imbalance and oxidative stress are considered to be major pathophysiological hallmarks of severe obstructive lung diseases including chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF), but limited information is available on their direct roles in the regulation of pulmonary phenotypes. Here, we utilized βENaC-transgenic (Tg) mice, the previously established mouse model of severe obstructive lung diseases, to produce lower-mortality but pathophysiologically highly useful mouse model by backcrossing the original line with C57/BL6J mice. C57/BL6J-βENaC-Tg mice showed higher survival rates and key pulmonary abnormalities of COPD/CF, including mucous hypersecretion, inflammatory and emphysematous phenotypes and pulmonary dysfunction. DNA microarray analysis confirmed that protease- and oxidative stress-dependent pathways are activated in the lung tissue of C57/BL6J-βENaC-Tg mice. Treatments of C57/BL6J-βENaC-Tg mice with a serine protease inhibitor ONO-3403, a derivative of camostat methylate (CM), but not CM, and with an anti-oxidant N-acetylcystein significantly improved pulmonary emphysema and dysfunction. Moreover, depletion of a murine endogenous antioxidant vitamin C (VC), by genetic disruption of VC-synthesizing enzyme SMP30 in C57/BL6J-βENaC-Tg mice, exaggerated pulmonary phenotypes. Thus, these assessments clarified that protease-antiprotease imbalance and oxidative stress are critical pathways that exacerbate the pulmonary phenotypes of C57/BL6J-βENaC-Tg mice, consistent with the characteristics of human COPD/CF.
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Rogliani P, Ora J, Puxeddu E, Cazzola M. Airflow obstruction: is it asthma or is it COPD? Int J Chron Obstruct Pulmon Dis 2016; 11:3007-3013. [PMID: 27942210 PMCID: PMC5137932 DOI: 10.2147/copd.s54927] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Despite the availability of guideline recommendations, diagnostic confusion between COPD and asthma appears common, and often it is very difficult to decide whether the obstruction is caused by asthma or COPD in a patient with airway obstruction. However, there are well-defined features that help in differentiating asthma from COPD in the presence of fixed airflow obstruction. Nonetheless, the presentations of asthma and COPD can converge and mimic each other, making it difficult to give these patients a diagnosis of either condition. The association of asthma and COPD in the same patient has been designated mixed asthma–COPD phenotype or overlap syndrome. However, since the absence of a clear definition and the inclusion of patients with different characteristics under this umbrella term, it may not facilitate treatment decisions, especially in the absence of clinical trials addressing this heterogeneous population. We are realizing that neither asthma nor COPD are single diseases, but rather syndromes consisting of several endotypes and phenotypes, consequently comprising a spectrum of diseases that must be recognized and adequately treated with targeted therapy. Therefore, we must treat patients by personalizing therapy on the basis of those treatable traits present in each subject.
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Affiliation(s)
- Paola Rogliani
- Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Josuel Ora
- Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Ermanno Puxeddu
- Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Mario Cazzola
- Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
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Immediate effects of cigar smoking on respiratory mechanics and exhaled biomarkers; differences between young smokers with mild asthma and otherwise healthy young smokers. Tob Induc Dis 2016; 14:29. [PMID: 27547175 PMCID: PMC4990845 DOI: 10.1186/s12971-016-0095-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 08/11/2016] [Indexed: 12/30/2022] Open
Abstract
Background We aimed to investigate the immediate respiratory effects of cigar smoking(CS), among young smokers with and without mild asthma. Materials and methods Forty-seven young smokers (18–31years old, 29 males, average pack-years = 3.6 ± 2.8) were enrolled. Twenty-two were mild asthmatics(MA-subgroup) and the remaining 25 were otherwise healthy smokers(HS-subgroup). Exhaled carbon monoxide(eCO), multi-frequency respiratory system impedance(Z), resistance(R), reactance(X), frequency-dependence of resistance(fdr = R5Hz - R20Hz), resonant frequency(fres), reactance area(AX) and exhaled nitric oxide(FENO) were measured at the aforementioned sequence, before and immediately after 30 min of CS, or equal session in the smoking area while using a sham cigar(control group). Chi-square, student’s t-tests, mixed linear models and Pearson correlation tests were used for the statistical analysis; level of significance was defined as p < 0.05. Results Immediately after CS, Z5Hz, R5Hz, R10Hz, R20Hz and eCO increased significantly in both subgroups(MA and HS). A greater increase was found for R20 in HS-subgroup. Fdr, fres and AX increased in MA, while decreased in HS. On the contrary, X10 decreased in MA and increased in HS, while X20 showed a greater decrease in MA. Changes in fdr, fres and AX were significantly correlated in both subgroups. No significant FENO alterations were detected in both subgroups. Conclusion CS has immediate effects on pulmonary function. Mild asthma predisposes to higher increase of peripheral resistance(increased fdr). In otherwise healthy smokers, central resistance(R20Hz) is more affected. FENO levels are not significantly affected by CS.
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Ohlmeier S, Nieminen P, Gao J, Kanerva T, Rönty M, Toljamo T, Bergmann U, Mazur W, Pulkkinen V. Lung tissue proteomics identifies elevated transglutaminase 2 levels in stable chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2016; 310:L1155-65. [PMID: 27084846 DOI: 10.1152/ajplung.00021.2016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 04/05/2016] [Indexed: 11/22/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease characterized by irreversible airflow limitation. Cigarette smoking represents the main risk factor, but the specific mechanisms of COPD are not completely understood. Our aim was to identify COPD-specific proteomic changes involved in disease onset and severity. A comparative proteomic analysis of 51 lung tissues from nonsmokers, smokers, smokers with mild to moderate (stage I-II) COPD, severe to very severe COPD (stage III-IV), and patients with α-1-antitrypsin deficiency (AATD) and idiopathic pulmonary fibrosis (IPF) was performed by cysteine-specific two-dimensional difference gel electrophoresis (2D-DIGE) coupled with mass spectrometry. Selected COPD-specific changes were validated by immunoblotting and further by ELISA in 120 induced sputum and plasma samples from nonsmokers, smokers, and patients with COPD (stage I-III). Altogether 82 altered proteins were identified comprising COPD-, AATD-, and IPF-specific, overlapping, and unspecific changes. Cathepsin D (CTSD), dihydropyrimidinase-related protein 2 (DPYSL2), transglutaminase 2 (TGM2), and tripeptidyl-peptidase 1 (TPP1) were validated as COPD-specific. TGM2 was not associated with smoking and correlated with COPD severity in lung tissue. TGM2 levels in sputum and plasma were elevated in patients with COPD (stage II-III) and correlated with lung function. In conclusion, new proteins related to COPD onset and severity could be identified with TGM2 being a novel potential diagnostic and therapeutic target for COPD. Further studies in carefully characterized cohorts are required to validate the identified changes.
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Affiliation(s)
- Steffen Ohlmeier
- Proteomics Core Facility, Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu
| | - Pentti Nieminen
- Medical Informatics and Statistics Group, University of Oulu, Oulu
| | - Jing Gao
- Heart and Lung Center, Division of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki
| | - Tinja Kanerva
- Heart and Lung Center, Division of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki
| | - Mikko Rönty
- HUSLAB, University of Helsinki and Helsinki University Hospital, Helsinki; and
| | - Tuula Toljamo
- Department of Pulmonary Medicine, Lapland Central Hospital, Rovaniemi, Finland
| | - Ulrich Bergmann
- Proteomics Core Facility, Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu
| | - Witold Mazur
- Heart and Lung Center, Division of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki
| | - Ville Pulkkinen
- Heart and Lung Center, Division of Pulmonary Medicine, University of Helsinki and Helsinki University Hospital, Helsinki;
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Oxidative Stress Markers in Sputum. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2930434. [PMID: 26885248 PMCID: PMC4738959 DOI: 10.1155/2016/2930434] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/15/2015] [Accepted: 10/18/2015] [Indexed: 01/12/2023]
Abstract
Although oxidative stress is thought to play a pivotal role in the pathogenesis of inflammatory airway diseases, its assessment in clinical practice remains elusive. In recent years, it has been conceptualized that oxidative stress markers in sputum should be employed to monitor oxidative processes in patients with asthma, chronic obstructive pulmonary disease (COPD), or cystic fibrosis (CF). In this review, the use of sputum-based oxidative markers was explored and potential clinical applications were considered. Among lipid peroxidation-derived products, 8-isoprostane and malondialdehyde have been the most frequently investigated, while nitrosothiols and nitrotyrosine may serve as markers of nitrosative stress. Several studies have showed higher levels of these products in patients with asthma, COPD, or CF compared to healthy subjects. Marker concentrations could be further increased during exacerbations and decreased along with recovery of these diseases. Measurement of oxidized guanine species and antioxidant enzymes in the sputum could be other approaches for assessing oxidative stress in pulmonary patients. Collectively, even though there are promising findings in this field, further clinical studies using more established detection techniques are needed to clearly show the benefit of these measurements in the follow-up of patients with inflammatory airway diseases.
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Liu T, Zhong S, Liao X, Chen J, He T, Lai S, Jia Y. A Meta-Analysis of Oxidative Stress Markers in Depression. PLoS One 2015; 10:e0138904. [PMID: 26445247 PMCID: PMC4596519 DOI: 10.1371/journal.pone.0138904] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 09/04/2015] [Indexed: 12/17/2022] Open
Abstract
OBJECT Studies have suggested that depression was accompanied by oxidative stress dysregulation, including abnormal total antioxidant capacity (TAC), antioxidants, free radicals, oxidative damage and autoimmune response products. This meta-analysis aims to analyse the clinical data quantitatively by comparing the oxidative stress markers between depressed patients and healthy controls. METHODS A search was conducted to collect the studies that measured the oxidative stress markers in depressed patients. Studies were searched in Embase, Medline, PsychINFO, Science direct, CBMDisc, CNKI and VIP from 1990 to May 2015. Data were subjected to meta-analysis by using a random effects model for examining the effect sizes of the results. Bias assessments, heterogeneity assessments and sensitivity analyses were also conducted. RESULTS 115 articles met the inclusion criteria. Lower TAC was noted in acute episodes (AEs) of depressed patients (p<0.05). Antioxidants, including serum paraoxonase, uric acid, albumin, high-density lipoprotein cholesterol and zinc levels were lower than controls (p<0.05); the serum uric acid, albumin and vitamin C levels were increased after antidepressant therapy (p<0.05). Oxidative damage products, including red blood cell (RBC) malondialdehyde (MDA), serum MDA and 8-F2-isoprostanes levels were higher than controls (p<0.05). After antidepressant medication, RBC and serum MDA levels were decreased (p<0.05). Moreover, serum peroxide in free radicals levels were higher than controls (p<0.05). There were no differences between the depressed patients and controls for other oxidative stress markers. CONCLUSION This meta-analysis supports the facts that the serum TAC, paraoxonase and antioxidant levels are lower, and the serum free radical and oxidative damage product levels are higher than controls in depressed patients. Meanwhile, the antioxidant levels are increased and the oxidative damage product levels are decreased after antidepressant medication. The pathophysiological relationships between oxidative stress and depression, and the potential benefits of antioxidant supplementation deserve further research.
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Affiliation(s)
- Tao Liu
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou, China
- Guangzhou Brain Hospital, Guangzhou, China
| | - Shuming Zhong
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Xiaoxiao Liao
- First School of Clinical Medicine, Jinan University, Guangzhou, China
| | - Jian Chen
- Management School, Jinan University, Guangzhou, China
| | - Tingting He
- Management School, Jinan University, Guangzhou, China
| | - Shunkai Lai
- First School of Clinical Medicine, Jinan University, Guangzhou, China
| | - Yanbin Jia
- Department of Psychiatry, First Affiliated Hospital, Jinan University, Guangzhou, China
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Zhukova OV, Konyshkina TM, Kononova SV. [The concept of risk factors in assessing the impact of smoking on an exacerbation of chronic obstructive pulmonary disease]. TERAPEVT ARKH 2015; 87:23-26. [PMID: 26027236 DOI: 10.17116/terarkh201587323-26] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
AIM By using the risk concept, to determine a quantitative relationship between smoking in patients with chronic obstructive pulmonary disease (COPD) and the development of an exacerbation. SUBJECTS AND METHODS Case history data were studied in 166 patients admitted for a COPD exacerbation in 2009 to 2012. There were 2 exacerbations for a year or longer. The patients were divided into 2 groups: smokers (n=110) and nonsmokers (n=56). The concept for estimating the risks was based on the calculation of absolute risk in the exposed and unexposed groups, attributable risk, relative risk, and population attributable risk and on the determination of standard errors for each type of risk and confidence interval. RESULTS The methodological aspects of determining the quantitative relationship between smoking in patients with COPD and the development of its exacerbations (twice or more per year) were considered on the basis of the statistical concept of risk factors. A risk factor concept-based analysis has shown that the impact of smoking is directly related to the worsening of COPD. The frequency of exacerbations is 71.8% in the group of smoking patients and 32.1 % in that of nonsmoking patients; the risk factor increases the likelihood of this event by 39.7%. CONCLUSION Smoking leads to a 2.2-fold increase in the frequency of COPD exacerbations. The potential hazard index was 2.5.
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Affiliation(s)
- O V Zhukova
- Nizhny Novgorod State Medical Academy, Ministry of Health of Russia, Nizhny Novgorod, Russia
| | - T M Konyshkina
- Nizhny Novgorod State Medical Academy, Ministry of Health of Russia, Nizhny Novgorod, Russia
| | - S V Kononova
- Nizhny Novgorod State Medical Academy, Ministry of Health of Russia, Nizhny Novgorod, Russia
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Gao J, Ohlmeier S, Nieminen P, Toljamo T, Tiitinen S, Kanerva T, Bingle L, Araujo B, Rönty M, Höyhtyä M, Bingle CD, Mazur W, Pulkkinen V. Elevated sputum BPIFB1 levels in smokers with chronic obstructive pulmonary disease: a longitudinal study. Am J Physiol Lung Cell Mol Physiol 2015; 309:L17-26. [PMID: 25979078 DOI: 10.1152/ajplung.00082.2015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/12/2015] [Indexed: 01/22/2023] Open
Abstract
A previous study involving a proteomic screen of induced sputum from smokers and patients with chronic obstructive pulmonary disease (COPD) demonstrated elevated levels of bactericidal/permeability-increasing fold-containing protein B1 (BPIFB1). The aim of the present study was to further evaluate the association of sputum BPIFB1 levels with smoking and longitudinal changes in lung function in smokers with COPD. Sputum BPIFB1 was characterized by two-dimensional gel electrophoresis and mass spectrometry. The expression of BPIFB1 in COPD was investigated by immunoblotting and immunohistochemistry using sputum and lung tissue samples. BPIFB1 levels were also assessed in induced sputum from nonsmokers (n = 31), smokers (n = 169), and patients with COPD (n = 52) via an ELISA-based method. The longitudinal changes in lung function during the 4-year follow-up period were compared with the baseline sputum BPIFB1 levels. In lung tissue samples, BPIFB1 was localized to regions of goblet cell metaplasia. Secreted and glycosylated BPIFB1 was significantly elevated in the sputum of patients with COPD compared with that of smokers and nonsmokers. Sputum BPIFB1 levels correlated with pack-years and lung function as measured by forced expiratory volume in 1 s (FEV1) % predicted and FEV1/FVC (forced vital capacity) at baseline and after the 4-year follow-up in all participants. The changes in lung function over 4 years were significantly associated with BPIFB1 levels in current smokers with COPD. In conclusion, higher sputum concentrations of BPIFB1 were associated with changes of lung function over time, especially in current smokers with COPD. BPIFB1 may be involved in the pathogenesis of smoking-related lung diseases.
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Affiliation(s)
- J Gao
- HUCH Heart and Lung Center, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - S Ohlmeier
- Proteomics Core Facility, Biocenter Oulu, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - P Nieminen
- Medical Informatics and Statistics Group, University of Oulu, Oulu, Finland
| | - T Toljamo
- Department of Pulmonary Medicine, Lapland Central Hospital, Rovaniemi, Finland
| | | | - T Kanerva
- HUCH Heart and Lung Center, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - L Bingle
- Academic Unit of Respiratory Medicine, Department of Infection and Immunity, University of Sheffield, Sheffield, UK; and
| | - B Araujo
- Academic Unit of Respiratory Medicine, Department of Infection and Immunity, University of Sheffield, Sheffield, UK; and
| | - M Rönty
- HUSLAB, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - M Höyhtyä
- Medix Biochemica, Kauniainen, Finland
| | - C D Bingle
- Academic Unit of Respiratory Medicine, Department of Infection and Immunity, University of Sheffield, Sheffield, UK; and
| | - W Mazur
- HUCH Heart and Lung Center, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - V Pulkkinen
- HUCH Heart and Lung Center, Department of Pulmonary Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland;
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Benor S, Alcalay Y, Domany KA, Gut G, Soferman R, Kivity S, Fireman E. Ultrafine particle content in exhaled breath condensate in airways of asthmatic children. J Breath Res 2015; 9:026001. [PMID: 25830607 DOI: 10.1088/1752-7155/9/2/026001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Air pollution triggers and exacerbates airway inflammation. Particulate material (PM) in ambient is characterized as being coarse (PM 10, aerodynamic diameter range 2.5-10 µm), fine (PM 2.5, 2.5-0.1 µm) and ultrafine (UFP, nano-sized, <0.1 µm). It is known that smaller inhaled PM produced more inflammation than larger ones. Most data on human exposure to PM are based on environmental monitoring. We evaluated the effect of individual exposure to UFP on functional respiratory parameters and airway inflammation in 52 children aged 6-18 years referred to the Pulmonary and Allergic Diseases Laboratory due to respiratory symptoms. Spirometry, bronchial provocation challenge, induced sputum (IS), exhaled breath condensate (EBC) and franctional exhaled nitric oxide evaluations were performed by conventional methods. UFP content in EBC was analyzed by using a NanoSight Light Microscope LM20. The total EBC UFP content correlated with wheezing (r = 0.28, p = 0.04), breath symptom score (r = 0.3, p = 0.03), and sputum eosinophilia (R = 0.64, p = 0.005). The percent of EBC particles in the nano-sized range also correlated with wheezing (r = 0.36, p = 0.007), breath symptom score (r = 0.33, p ≤ 0.02), and sputum eosinophilia (r = 0.72, p = 0.001). Respiratory symptoms and airway inflammation positively correlated to UFP content in EBC of symptomatic children.
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Affiliation(s)
- Shira Benor
- Department of Pulmonary and Allergic Diseases, Tel-Aviv Sourasky Medical Center, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 6423906, Israel
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Palta P, Szanton SL, Semba RD, Thorpe RJ, Varadhan R, Fried LP. Financial strain is associated with increased oxidative stress levels: the Women's Health and Aging Studies. Geriatr Nurs 2015; 36:S33-7. [PMID: 25784083 DOI: 10.1016/j.gerinurse.2015.02.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Elevated oxidative stress levels may be one mechanism contributing to poor health outcomes. Financial strain and oxidative stress are each predictors of morbidity and mortality, but little research has investigated their relationship. Community-dwelling older adults (n = 728) from the Women's Health and Aging Studies I and II were included in this cross-sectional analysis. Financial strain was ascertained as an ordinal response to: "At the end of the month, do you have more than enough money left over, just enough, or not enough?" Oxidative stress was measured using serum protein carbonyl concentrations. Linear regression was used to quantify the relationship between financial strain and oxidative stress. Participants who reported high financial strain exhibited 13.4% higher protein carbonyl concentrations compared to individuals who reported low financial strain (p = 0.002). High financial strain may be associated with increased oxidative stress, suggesting that oxidative stress could mediate associations between financial strain and poor health.
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Affiliation(s)
- Priya Palta
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Sarah L Szanton
- Johns Hopkins University School of Nursing, Baltimore, MD, USA; Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Richard D Semba
- Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Roland J Thorpe
- Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ravi Varadhan
- Center on Aging and Health, Johns Hopkins Medical Institutions, Baltimore, MD, USA; Division of Geriatric Medicine and Gerontology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Linda P Fried
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
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Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most common chronic illnesses in the world. The disease encompasses emphysema, chronic bronchitis, and small airway obstruction and can be caused by environmental exposures, primarily cigarette smoking. Since only a small subset of smokers develop COPD, it is believed that host factors interact with the environment to increase the propensity to develop disease. The major pathogenic factors causing disease include infection and inflammation, protease and antiprotease imbalance, and oxidative stress overwhelming antioxidant defenses. In this review, we will discuss the major environmental and host sources for oxidative stress; discuss how oxidative stress regulates chronic bronchitis; review the latest information on genetic predisposition to COPD, specifically focusing on oxidant/antioxidant imbalance; and review future antioxidant therapeutic options for COPD. The complexity of COPD will necessitate a multi-target therapeutic approach. It is likely that antioxidant supplementation and dietary antioxidants will have a place in these future combination therapies.
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Affiliation(s)
- Bernard M Fischer
- Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Judith A Voynow
- Department of Pediatrics, Children’s Hospital of Richmond at Virginia Commonwealth University, Richmond, VA, USA
| | - Andrew J Ghio
- National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Chapel Hill, NC, USA
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Genetic polymorphisms in glutathione-S-transferases are associated with anxiety and mood disorders in nicotine dependence. Psychiatr Genet 2014; 24:87-93. [PMID: 24637631 PMCID: PMC4004636 DOI: 10.1097/ypg.0000000000000023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Background Nicotine dependence is associated with an increased risk of mood and anxiety disorders and suicide. The primary hypothesis of this study was to identify whether the polymorphisms of two glutathione-S-transferase enzymes (GSTM1 and GSTT1 genes) predict an increased risk of mood and anxiety disorders in smokers with nicotine dependence. Materials and methods Smokers were recruited at the Centre of Treatment for Smokers. The instruments were a sociodemographic questionnaire, Fagerström Test for Nicotine Dependence, diagnoses of mood disorder and nicotine dependence according to DSM-IV (SCID-IV), and the Alcohol, Smoking and Substance Involvement Screening Test. Anxiety disorder was assessed based on the treatment report. Laboratory assessment included glutathione-S-transferases M1 (GSTM1) and T1 (GSTT1), which were detected by a multiplex-PCR protocol. Results Compared with individuals who had both GSTM1 and GSTT1 genes, a higher frequency of at least one deletion of the GSTM1 and GSTT1 genes was identified in anxious smokers [odds ratio (OR)=2.21, 95% confidence interval (CI)=1.05–4.65, P=0.034], but there was no association with bipolar and unipolar depression (P=0.943). Compared with nonanxious smokers, anxious smokers had a greater risk for mood disorders (OR=4.67; 95% CI=2.24–9.92, P<0.001), lung disease (OR=6.78, 95% CI=1.95–23.58, P<0.003), and suicide attempts (OR=17.01, 95% CI=2.23–129.91, P<0.006). Conclusion This study suggests that at least one deletion of the GSTM1 and GSTT1 genes represents a risk factor for anxious smokers. These two genes may modify the capacity for the detoxification potential against oxidative stress.
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Li YC, Hsieh CC. Lactoferrin dampens high-fructose corn syrup-induced hepatic manifestations of the metabolic syndrome in a murine model. PLoS One 2014; 9:e97341. [PMID: 24816278 PMCID: PMC4016362 DOI: 10.1371/journal.pone.0097341] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 04/17/2014] [Indexed: 01/21/2023] Open
Abstract
Hepatic manifestations of the metabolic syndrome are related obesity, type 2 diabetes/insulin resistance and non-alcoholic fatty liver disease. Here we investigated how the anti-inflammatory properties of lactoferrin can protect against the onset of hepatic manifestations of the metabolic syndrome by using a murine model administered with high-fructose corn syrup. Our results show that a high-fructose diet stimulates intestinal bacterial overgrowth and increases intestinal permeability, leading to the introduction of endotoxin into blood circulation and liver. Immunohistochemical staining of Toll-like receptor-4 and thymic stromal lymphopoietin indicated that lactoferrin can modulate lipopolysaccharide-mediated inflammatory cascade. The important regulatory roles are played by adipokines including interleukin-1β, interleukin-6, tumor necrosis factor-α, monocyte chemotactic protein-1, and adiponectin, ultimately reducing hepatitis and decreasing serum alanine aminotransferase release. These beneficial effects of lactoferrin related to the downregulation of the lipopolysaccharide-induced inflammatory cascade in the liver. Furthermore, lactoferrin reduced serum and hepatic triglycerides to prevent lipid accumulation in the liver, and reduced lipid peroxidation, resulting in 4-hydroxynonenal accumulation. Lactoferrin reduced oral glucose tolerance test and homeostasis model assessment-insulin resistance. Lactoferrin administration thus significantly lowered liver weight, resulting from a decrease in the triglyceride and cholesterol synthesis that activates hepatic steatosis. Taken together, these results suggest that lactoferrin protected against high-fructose corn syrup induced hepatic manifestations of the metabolic syndrome.
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Affiliation(s)
- Yi-Chieh Li
- Department of Animal Science and Biotechnology, Tunghai University, Taichung, Taiwan
| | - Chang-Chi Hsieh
- Department of Animal Science and Biotechnology, Tunghai University, Taichung, Taiwan
- * E-mail:
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Zhu A, Ge D, Zhang J, Teng Y, Yuan C, Huang M, Adcock IM, Barnes PJ, Yao X. Sputum myeloperoxidase in chronic obstructive pulmonary disease. Eur J Med Res 2014; 19:12. [PMID: 24588870 PMCID: PMC4016613 DOI: 10.1186/2047-783x-19-12] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 02/03/2014] [Indexed: 01/15/2023] Open
Abstract
Background Airway inflammation, especially neutrophilic airway inflammation, is a cardinal pathophysiologic feature in chronic obstructive pulmonary disease (COPD) patients. The ideal biomarkers characterizing the inflammation might have important potential clinical applications in disease assessment and therapeutic intervention. Sputum myeloperoxidase (MPO) is recognized as a marker of neutrophil activity. The purpose of this meta-analysis is to determine whether sputum MPO levels could reflect disease status or be regulated by regular medications for COPD. Methods Studies were identified by searching PubMed, Embase, the Cochrane Database, CINAHL and http://www.controlled-trials.com for relevant reports published before September 2012. Observational studies comparing sputum MPO in COPD patients and healthy subjects or asthmatics, or within the COPD group, and studies comparing sputum MPO before and after treatment were all included. Data were independently extracted by two investigators and analyzed using STATA 10.0 software. Results A total of 24 studies were included in the meta-analysis. Sputum MPO levels were increased in stable COPD patients when compared with normal controls, and this increase was especially pronounced during exacerbations as compared with MPO levels during the stable state. Theophylline treatment was able to reduce MPO levels in COPD patients, while glucocorticoid treatment failed to achieve the same result. Conclusion Sputum MPO might be a promising biomarker for guiding COPD management; however, further investigations are needed to confirm this.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Xin Yao
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China.
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Patel II, Shearer DA, Fogarty SW, Fullwood NJ, Quaroni L, Martin FL, Weisz J. Infrared microspectroscopy identifies biomolecular changes associated with chronic oxidative stress in mammary epithelium and stroma of breast tissues from healthy young women: implications for latent stages of breast carcinogenesis. Cancer Biol Ther 2013; 15:225-35. [PMID: 24107651 DOI: 10.4161/cbt.26748] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Studies of the decades-long latent stages of breast carcinogenesis have been limited to when hyperplastic lesions are already present. Investigations of earlier stages of breast cancer (BC) latency have been stymied by the lack of fiducial biomarkers needed to identify where in histologically normal tissues progression toward a BC might be taking place. Recent evidence suggests that a marker of chronic oxidative stress (OxS), protein adducts of 4-hydroxy-2-nonenal (4HNE), can meet this need. Specifically: (1) 4HNE immunopositive (4HNE+) mammary epithelial (ME) cells were found to be prevalent in normal (reduction mammoplasty) tissues of most women (including many teenagers) studied, representative of those living in the United States' high risk-posing environment and: (2) marked (> 1.5-fold) differences were identified between tissues of healthy young women with many vs. few 4HNE+ ME cells in the relative levels of transcripts for 42 of the 84 OxS-associated genes represented in SABioscience Oxidative-Stress/Oxidative-Defense PCR array. Herein we used synchrotron radiation-based Fourier-transform infrared (SR-FTIR) microspectroscopy to identify molecular changes associated with 4HNE adducts in basal and luminal ME cells in terminal ductal units (TDLU), which are the cells of origin of BC, and associated intralobular and interlobular stroma, known contributors to carcinogenesis. Multivariate analysis-derived wavenumbers differentiated 4HNE+ and 4HNE- cells in each of the anatomical compartments. Specifically, principal component and linear discriminant analyses of mid-infrared spectra obtained from these cells revealed unambiguous, statistically highly significant differences in the "biochemical fingerprint" of 4HNE+ vs. 4HNE- luminal and basal ME cells, as well as between associated intralobular and interlobular stroma. These findings demonstrate further SR-FTIR microspectroscopy's ability to identify molecular changes associated with altered physiological and/or pathophysiological states, in this case with a state of chronic OxS that provides a pro-carcinogenic microenvironment.
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Affiliation(s)
- Imran I Patel
- Center for Biophotonics; Lancaster Environment Centre; Lancaster University; Lancaster, UK
| | - Debra A Shearer
- Department of Obstetrics and Gynecology; College of Medicine; Pennsylvania State University; Hershey, PA USA
| | - Simon W Fogarty
- Division of Biomedical and Life Sciences; Faculty of Health and Medicine; Lancaster University; Lancaster, UK
| | - Nigel J Fullwood
- Division of Biomedical and Life Sciences; Faculty of Health and Medicine; Lancaster University; Lancaster, UK
| | | | - Francis L Martin
- Center for Biophotonics; Lancaster Environment Centre; Lancaster University; Lancaster, UK
| | - Judith Weisz
- Department of Obstetrics and Gynecology; College of Medicine; Pennsylvania State University; Hershey, PA USA; Department of Pathology; College of Medicine; Pennsylvania State University; Hershey, PA USA
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Local and systemic oxidative stress status in chronic obstructive pulmonary disease patients. Can Respir J 2013; 20:35-41. [PMID: 23457673 DOI: 10.1155/2013/985382] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Previous studies have indicated that oxidative stress plays an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). OBJECTIVES To study local and systemic oxidative stress status in COPD patients, and to clarify the relationship between local and systemic oxidative stress. METHODS Lipid peroxide malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD) and GSH peroxidase (GSH-PX) levels in induced sputum and plasma, as well as glucocorticoid receptor (GR) levels in peripheral blood leukocytes were examined in 43 acute exacerbation of COPD patients (group A), 35 patients with stable COPD (group B) and 28 healthy controls (14 smokers [group C]; 14 nonsmokers [group D]). RESULTS MDA levels in induced sputum and plasma decreased progressively in groups A to D, with significant differences between any two groups (P<0.001). GSH, SOD and GSH-PX levels in both induced sputum and plasma increased progressively in groups A to D, with significant differences between any two groups (P<0.001). GR levels in peripheral blood leukocytes decreased progressively in groups D to A (all comparisons P<0.001). Pearson analysis revealed strong correlations between MDA, GSH, SOD and GSH-PX levels in plasma and induced sputum. The activity of SOD in plasma and sputum were both positively correlated with GR levels (partial correlation coefficients 0.522 and 0.574, respectively [P<0.001]). CONCLUSIONS Oxidative stress levels were elevated in COPD patients. There was a correlation between local and systemic oxidative status in COPD, and between decreased SOD activity and decreased GR levels in COPD patients.
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Vargas HO, Nunes SOV, Pizzo de Castro M, Bortolasci CC, Sabbatini Barbosa D, Kaminami Morimoto H, Venugopal K, Dodd S, Maes M, Berk M. Oxidative stress and lowered total antioxidant status are associated with a history of suicide attempts. J Affect Disord 2013; 150:923-30. [PMID: 23856278 DOI: 10.1016/j.jad.2013.05.016] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 05/03/2013] [Indexed: 11/27/2022]
Abstract
BACKGROUND There is evidence that depression is accompanied by inflammation, oxidative and nitrosative stress (O&NS) and metabolic disorders. However links between oxidative stress and suicide attempts in depressed patients are poorly understood. This study examines whether a history of suicide attempts is associated with inflammation, O&NS and metabolic disorders. METHODS Blood specimens were collected from study participants aged 18-60 (N=342) recruited at the State University of Londrina, Brazil, and measured for oxidative stress biomarkers: nitric oxide metabolites (NOx), lipid hydroperoxides, malondialdehyde, advanced oxidation protein products and plasma total antioxidant potential (TRAP); inflammatory biomarkers: fibrinogen, high-sensitivity C-reactive protein, erythrocyte sedimentation rate, interleukin-6 and tumor necrosis factor-α; and metabolic variables. Subjects were divided into those with (n=141) and without (n=201) a history of suicidal attempts. RESULTS Individuals with a history of suicide attempts had significantly higher levels of NOx and lipid hydroperoxides and lowered TRAP as compared to individuals without suicide attempts. There were no significant associations between a history of suicide attempts and inflammatory and metabolic biomarkers and metabolic syndrome. Logistic regression showed that both unipolar and bipolar disorder, female gender, smoking behavior and lipid hydroperoxides were significantly associated with a history of suicide attempts. The combined effects of oxidative stress, smoking, depression, female gender were independent from classical risk factors, including marital status, years of education and anxiety. CONCLUSIONS O&NS as well as lowered antioxidant levels may play a role in the pathophysiology of suicidal behavior independently from the effects of depression and smoking, both of which are associated with increased O&NS, and classical suicide predictors, such as years of education and marital status.
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Nunes SOV, Vargas HO, Prado E, Barbosa DS, de Melo LP, Moylan S, Dodd S, Berk M. The shared role of oxidative stress and inflammation in major depressive disorder and nicotine dependence. Neurosci Biobehav Rev 2013; 37:1336-45. [DOI: 10.1016/j.neubiorev.2013.04.014] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 04/23/2013] [Accepted: 04/25/2013] [Indexed: 11/29/2022]
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Hoenderdos K, Condliffe A. The Neutrophil in Chronic Obstructive Pulmonary Disease. Too Little, Too Late or Too Much, Too Soon? Am J Respir Cell Mol Biol 2013; 48:531-9. [DOI: 10.1165/rcmb.2012-0492tr] [Citation(s) in RCA: 260] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Vargas HO, Nunes SOV, de Castro MRP, Vargas MM, Barbosa DS, Bortolasci CC, Venugopal K, Dodd S, Berk M. Oxidative stress and inflammatory markers are associated with depression and nicotine dependence. Neurosci Lett 2013; 544:136-40. [PMID: 23583694 DOI: 10.1016/j.neulet.2013.03.059] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/28/2013] [Accepted: 03/29/2013] [Indexed: 11/30/2022]
Abstract
To determine if oxidative stress and inflammation are linked with major depressive disorder, nicotine dependence and both disorders combined. This study comprised 150 smokers and 191 never smokers. The instruments were: a socio-demographic questionnaire, diagnoses of mood disorder and nicotine dependence according to DSM-IV, (SCID-IV), and the Alcohol, Smoking and Substance Involvement Screening Test. Laboratory assessments included: nitric oxide metabolites (NOx), lipid hydroperoxides, malondialdehyde (MDA), total reactive antioxidant potential (TRAP), advanced oxidation protein products (AOPP), fibrinogen concentrations, homocysteine, erythrocytes sedimentation rate (ESR) and high-sensitivity C-reactive protein (hs-CRP) were assayed from blood specimens. Statistically significant differences were found among depressed smokers who had more severe depressive symptoms, a higher risk of alcohol consumption, more suicide attempts, and more disability for work than non-depressed never smokers. Depressed smokers had significantly higher levels of NOx, fibrinogen, hs-CRP, AOPP, ESR and lower levels of TRAP compared to non-depressed never smokers. Depressed smokers had significant levels of oxidative stress and inflammatory biomarkers after adjusting for gender, age, years of education, disability for work, and laboratory measures. The levels of NOx, lipid hydroperoxides, AOPP, and fibrinogen were substantially higher, whereas levels of TRAP were lower in depressed smokers compared to non-depressed never smokers. (1) Depressed smokers exhibited altered concentrations of NOx, lipid hydroperoxides, AOPP, TRAP, and fibrinogen. (2) Depressed smokers were more unable to work, showed more severe depressive symptoms and attempted suicide more frequently.
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Rahman I, Kinnula VL. Strategies to decrease ongoing oxidant burden in chronic obstructive pulmonary disease. Expert Rev Clin Pharmacol 2012; 5:293-309. [PMID: 22697592 DOI: 10.1586/ecp.12.16] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a leading cause of mortality and morbidity globally, and its development is mainly associated with tobacco/biomass smoke-induced oxidative stress. Hence, targeting systemic and local oxidative stress with agents that can balance the antioxidant/redox system can be expected to be useful in the treatment of COPD. Preclinical and clinical trials have revealed that antioxidants/redox modulators can detoxify free radicals and oxidants, control expression of redox and glutathione biosynthesis genes, chromatin remodeling and inflammatory gene expression; and are especially useful in preventing COPD exacerbations. In this review, various novel approaches and problems associated with these approaches in COPD are reviewed.
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Affiliation(s)
- Irfan Rahman
- Department of Environmental Medicine, Lung Biology and Disease Program, University of Rochester Medical Center, Rochester, NY 14642, USA.
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Linja-aho A, Mazur W, Toljamo T, Nieminen P, Ohlmeier S, Rönty M, Kinnula VL. Distribution and levels of alpha-1-antitrypsin in the lung and plasma in smokers and chronic obstructive pulmonary disease. APMIS 2012; 121:11-21. [DOI: 10.1111/j.1600-0463.2012.02936.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 05/23/2012] [Indexed: 12/14/2022]
Affiliation(s)
- Anna Linja-aho
- Pulmonary Division; Department of Medicine; University of Helsinki and Helsinki University Central Hospital; Helsinki; Finland
| | - Witold Mazur
- Pulmonary Division; Department of Medicine; University of Helsinki and Helsinki University Central Hospital; Helsinki; Finland
| | - Tuula Toljamo
- Department of Pulmonary Medicine; Lapland Central Hospital; Rovaniemi; Finland
| | - Pentti Nieminen
- Medical Informatics Group; University of Oulu; Oulu; Finland
| | - Steffen Ohlmeier
- Department of Biochemistry; Proteomics Core Facility Biocenter Oulu; University of Oulu; Oulu; Finland
| | - Mikko Rönty
- Department of Pathology; University of Helsinki and Helsinki University Central Hospital; Helsinki; Finland
| | - Vuokko L. Kinnula
- Pulmonary Division; Department of Medicine; University of Helsinki and Helsinki University Central Hospital; Helsinki; Finland
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Malinovschi A, Janson C, Högman M, Rolla G, Torén K, Norbäck D, Olin AC. Bronchial responsiveness is related to increased exhaled NO (FE(NO)) in non-smokers and decreased FE(NO) in smokers. PLoS One 2012; 7:e35725. [PMID: 22563393 PMCID: PMC3338521 DOI: 10.1371/journal.pone.0035725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 03/22/2012] [Indexed: 01/08/2023] Open
Abstract
RATIONALE Both atopy and smoking are known to be associated with increased bronchial responsiveness. Fraction of nitric oxide (NO) in the exhaled air (FE(NO)), a marker of airways inflammation, is decreased by smoking and increased by atopy. NO has also a physiological bronchodilating and bronchoprotective role. OBJECTIVES To investigate how the relation between FE(NO) and bronchial responsiveness is modulated by atopy and smoking habits. METHODS Exhaled NO measurements and methacholine challenge were performed in 468 subjects from the random sample of three European Community Respiratory Health Survey II centers: Turin (Italy), Gothenburg and Uppsala (both Sweden). Atopy status was defined by using specific IgE measurements while smoking status was questionnaire-assessed. MAIN RESULTS Increased bronchial responsiveness was associated with increased FE(NO) levels in non-smokers (p = 0.02) and decreased FE(NO) levels in current smokers (p = 0.03). The negative association between bronchial responsiveness and FE(NO) was seen only in the group smoking less <10 cigarettes/day (p = 0.008). Increased bronchial responsiveness was associated with increased FE(NO) in atopic subjects (p = 0.04) while no significant association was found in non-atopic participants. The reported interaction between FE(NO) and smoking and atopy, respectively were maintained after adjusting for possible confounders (p-values<0.05). CONCLUSIONS The present study highlights the interactions of the relationship between FE(NO) and bronchial responsiveness with smoking and atopy, suggesting different mechanisms behind atopy- and smoking-related increases of bronchial responsiveness.
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Affiliation(s)
- Andrei Malinovschi
- Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden.
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Li M, Zhong X, He Z, Wen M, Li J, Peng X, Liu G, Deng J, Zhang J, Bai J. Effect of erythromycin on cigarette-induced histone deacetylase protein expression and nuclear factor-κB activity in human macrophages in vitro. Int Immunopharmacol 2012; 12:643-50. [PMID: 22265969 DOI: 10.1016/j.intimp.2011.12.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2011] [Revised: 11/26/2011] [Accepted: 12/29/2011] [Indexed: 01/04/2023]
Abstract
Histone deacetylases (HDACs) are families of enzymes that regulate chromatin structure and thus affect inflammatory gene expression. The anti-inflammatory properties of macrolides are well documented. However, the effects of macrolides on HDAC protein expression have not been studied. This study aimed to examine the molecular mechanism of the inflammatory responses caused by cigarette smoke extract (CSE) and the effects of erythromycin (EM) on CSE-induced HDAC protein expression in human macrophages in vitro. The cells were preincubated with EM and were then exposed to CSE. Levels of interleukin-8 (IL-8) and tumor necrosis factor-a (TNF-a) were assayed by enzyme linked immunosorbent assay (ELISA). Nuclear factor-κB (NF-κB) activity was assessed by an electrophoretic mobility shift assay. HDAC activity was measured with a colorimetric assay kit, and Western blotting was used for HDAC1, -2, -3 and NF-κB protein expression assays. The results showed that CSE causes decreases in HDAC activity and HDAC1, -2, -3 levels and upregulates NF-κB activity, resulting in increased NF-κB-dependent proinflammatory cytokine release in human macrophage cells. Moreover, EM was able to reverse the CSE-induced decline in HDAC1, -2, -3 protein expression, which was most prominent for HDAC2; these changes were associated with the suppression of both NF-κB protein expression and the production of inflammatory mediators. These results suggest that relieving inflammation with EM can be useful in therapeutic approaches for modulating intracellular nuclear signaling in chronic airway inflammatory diseases such as chronic obstructive pulmonary disease (COPD).
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Affiliation(s)
- Meihua Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, Guangxi 530021, China
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Vardavas CI, Anagnostopoulos N, Kougias M, Evangelopoulou V, Connolly GN, Behrakis PK. Short-term pulmonary effects of using an electronic cigarette: impact on respiratory flow resistance, impedance, and exhaled nitric oxide. Chest 2011; 141:1400-1406. [PMID: 22194587 DOI: 10.1378/chest.11-2443] [Citation(s) in RCA: 363] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Debate exists over the scientific evidence for claims that electronic cigarettes (e-cigarettes) have no health-related ramifications. This study aimed to assess whether using an e-cigarette for 5 min has an impact on the pulmonary function tests and fraction of exhaled nitric oxide (Feno) of healthy adult smokers. METHODS Thirty healthy smokers (aged 19-56 years, 14 men) participated in this laboratory-based experimental vs control group study. Ab lib use of an e-cigarette for 5 min with the cartridge included (experimental group, n = 30) or removed from the device (control group, n = 10) was assessed. RESULTS Using an e-cigarette for 5 min led to an immediate decrease in Feno within the experimental group by 2.14 ppb (P = .005) but not in the control group (P = .859). Total respiratory impedance at 5 Hz in the experimental group was found to also increase by 0.033 kPa/(L/s) (P < .001), and flow respiratory resistance at 5 Hz, 10 Hz, and 20 Hz also statistically increased. Regression analyses controlling for baseline measurements indicated a statistically significant decrease in Feno and an increase in impedance by 0.04 kPa/(L/s) (P = .003), respiratory resistance at 5 Hz by 0.04 kPa/(L/s) (P = .003), at 10 Hz by 0.034 kPa/(L/s) (P = .008), at 20 Hz by 0.043 kPa/(L/s) (P = .007), and overall peripheral airway resistance (β, 0.042 kPa/[L/s]; P = .024), after using an e-cigarette. CONCLUSIONS e-Cigarettes assessed in the context of this study were found to have immediate adverse physiologic effects after short-term use that are similar to some of the effects seen with tobacco smoking; however, the long-term health effects of e-cigarette use are unknown but potentially adverse and worthy of further investigation.
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Affiliation(s)
- Constantine I Vardavas
- Center for Global Tobacco Control, Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA; Smoking and Lung Cancer Research Center, Hellenic Cancer Society, Athens, Greece.
| | - Nektarios Anagnostopoulos
- Smoking and Lung Cancer Research Center, Hellenic Cancer Society, Athens, Greece; Laboratory of Respiratory Physiology, Department of Medicine, University of Athens, Greece
| | - Marios Kougias
- Smoking and Lung Cancer Research Center, Hellenic Cancer Society, Athens, Greece; Laboratory of Respiratory Physiology, Department of Medicine, University of Athens, Greece
| | | | - Gregory N Connolly
- Center for Global Tobacco Control, Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA
| | - Panagiotis K Behrakis
- Center for Global Tobacco Control, Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA; Smoking and Lung Cancer Research Center, Hellenic Cancer Society, Athens, Greece; Laboratory of Respiratory Physiology, Department of Medicine, University of Athens, Greece
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Kashinakunti SV, Kollur P, Kallaganada GS, Rangappa M, Ingin JB. Comparative study of serum MDA and vitamin C levels in non-smokers, chronic smokers and chronic smokers with acute myocardial infarction in men. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2011; 16:993-8. [PMID: 22279473 PMCID: PMC3263094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Accepted: 08/14/2011] [Indexed: 11/22/2022]
Abstract
BACKGROUND It is a well-known fact that there is increased oxidative stress and decreased serum antioxidant levels in smokers than in non-smokers. In this study, the aim was to compare the serum levels of malondialdehyde (MDA), a lipid peroxidation product and vitamin C, an antioxidant, between non- smokers (Group A) and chronic smokers (Group B) and also between chronic smokers (Group B) and chronic smokers with acute myocardial infarction (AMI) (Group C). METHODS Thirty six non-smokers and 36 chronic smokers appropriately matched with AMI patients were selected. Thirty six smokers with AMI were selected from Hanagal Kumareshwara hospital, Bagalkot, Karnataka, India. Fasting blood sample was collected in group A and group B. In AMI patients, blood sample was collected before any intervention. Serum levels of MDA and vitamin C were estimated. Statistical analysis was done by t test using SPSS version 11. The p< 0.05 was considered statistically significant. All the results were expressed as mean ± SD. RESULTS The MDA and vitamin C were compared between Group A and Group B and also between Group B and Group C. There was a significant rise in MDA (p<0.0001) and significant decrease in vitamin C (p<0.01) in Group B compared to Group A. There was a significant rise in MDA (p<0.0001) and significant decrease in vitamin C (p<0.001) in Group C compared to Group B. CONCLUSIONS The increase in serum MDA level and decrease in vitamin C was found in chronic smokers compared to non-smokers. It was also found that there is increase in serum MDA and decrease in vitamin C in smokers with AMI compared with smokers without AMI, and the reason for this inter-subject variability of MDA and vitamin C levels may be due to gene-environmental factors.
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Affiliation(s)
- Sanaappa Virupaxappa Kashinakunti
- Associate Professor, Department of Biochemistry, S. N. Medical College, Bagalkot, Karnataka, India,
Corresponding Author: Sanaappa Virupaxappa Kashinakunti E-mail:
| | - Pampareddy Kollur
- Assistant Professor, Department of Biochemistry, D. Y. Patil Medical College, Kolhapur, Maharashtra, India
| | | | - Manjula Rangappa
- Assistant Professor, Department of Community Medicine, S. N. Medical College, Bagalkot, Karnataka, India
| | - Jagadish Basavaraj Ingin
- Professor and HOD, Department of Biochemistry, M. R. Medical College, Gulbarga, Karnataka, India
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Regan EA, Mazur W, Meoni E, Toljamo T, Millar J, Vuopala K, Bowler RP, Rahman I, Nicks ME, Crapo JD, Kinnula VL. Smoking and COPD increase sputum levels of extracellular superoxide dismutase. Free Radic Biol Med 2011; 51:726-32. [PMID: 21621610 DOI: 10.1016/j.freeradbiomed.2011.05.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 04/28/2011] [Accepted: 05/09/2011] [Indexed: 02/02/2023]
Abstract
Extracellular superoxide dismutase (ECSOD) is the major superoxide-scavenging enzyme in the lung. Certain ECSOD polymorphisms are protective against COPD. We postulated that smokers and COPD subjects would have altered levels of ECSOD in the lung, airway secretions, and/or plasma. Lung tissue ECSOD was evaluated from nonsmokers, smokers, and subjects with mild to very severe COPD by Western blot, immunohistochemistry, and ELISA. ECSOD levels in plasma, bronchoalveolar lavage fluid (BALF), and induced-sputum supernatants were analyzed by ELISA and correlated with smoking history and disease status. Immunohistochemistry identified ECSOD in extracellular matrix around bronchioles, arteries, and alveolar walls, with decreases seen in the interstitium and vessels of severe COPD subjects using digital image analysis. Plasma ECSOD did not differ between COPD subjects and controls nor based on smoking status. ECSOD levels in induced sputum supernatants were elevated in current smokers and especially in COPD subjects compared to nonsmokers, whereas corresponding changes could not be seen in the BALF. ECSOD expression was reduced around vessels and bronchioles in COPD lungs. Substantial increases in sputum ECSOD in smokers and COPD is interpreted as an adaptive response to increased oxidative stress and may be a useful biomarker of disease activity in COPD.
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Affiliation(s)
- Elizabeth A Regan
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA.
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Masuko H, Sakamoto T, Kaneko Y, Iijima H, Naito T, Noguchi E, Hirota T, Tamari M, Hizawa N. An interaction between Nrf2 polymorphisms and smoking status affects annual decline in FEV1: a longitudinal retrospective cohort study. BMC MEDICAL GENETICS 2011; 12:97. [PMID: 21774808 PMCID: PMC3160350 DOI: 10.1186/1471-2350-12-97] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2011] [Accepted: 07/20/2011] [Indexed: 02/03/2023]
Abstract
BACKGROUND An Nrf2-dependent response is a central protective mechanism against oxidative stress. We propose that particular genetic variants of the Nrf2 gene may be associated with a rapid forced expiratory volume in one second (FEV1) decline induced by cigarette smoking. METHODS We conducted a retrospective cohort study of 915 Japanese from a general population. Values of annual decline in FEV1 were computed for each individual using a linear mixed-effect model. Multiple clinical characteristics were assessed to identify associations with annual FEV1 decline. Tag single-nucleotide polymorphisms (SNPs) in the Nrf2 gene (rs2001350, rs6726395, rs1962142, rs2364722) and one functional SNP (rs6721961) in the Nrf2 promoter region were genotyped to assess interactions between the Nrf2 polymorphisms and smoking status on annual FEV1 decline. RESULTS Annual FEV1 decline was associated with smoking behavior and inversely correlated with FEV1/FVC and FEV1 % predicted. The mean annual FEV1 declines in individuals with rs6726395 G/G, G/A, or A/A were 26.2, 22.3, and 20.8 mL/year, respectively, and differences in these means were statistically significant (pcorr = 0.016). We also found a significant interaction between rs6726395 genotype and smoking status on the FEV1 decline (p for interaction = 0.011). The haplotype rs2001350T/rs6726395A/rs1962142A/rs2364722A/rs6721961T was associated with lower annual decline in FEV1 (p = 0.004). CONCLUSIONS This study indicated that an Nrf2-dependent response to exogenous stimuli may affect annual FEV1 decline in the general population. It appears that the genetic influence of Nrf2 is modified by smoking status, suggesting the presence of a gene-environment interaction in accelerated decline in FEV1.
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Affiliation(s)
- Hironori Masuko
- Division of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan
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Hwang JW, Rajendrasozhan S, Yao H, Chung S, Sundar IK, Huyck HL, Pryhuber GS, Kinnula VL, Rahman I. FOXO3 deficiency leads to increased susceptibility to cigarette smoke-induced inflammation, airspace enlargement, and chronic obstructive pulmonary disease. THE JOURNAL OF IMMUNOLOGY 2011; 187:987-98. [PMID: 21690325 DOI: 10.4049/jimmunol.1001861] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Forkhead box class O 3a (FOXO3) is a member of the FoxO transcription factor subfamily, which regulates the expression of target genes not only through DNA binding as a transcription factor, but also through protein-protein interaction. Although FoxO3 is a well-known transcription factor involved in diverse biological processes, the role of FoxO3 in cigarette smoke (CS)-induced lung inflammation and injury has not been studied. It is, therefore, hypothesized that deficiency of FoxO3 leads to increased susceptibility to CS-induced lung inflammatory response and airspace enlargement. In this article, we show that the levels of FOXO3 are significantly decreased in lungs of smokers and patients with chronic obstructive pulmonary disease, as well as in lungs of mice exposed to CS. Genetic ablation of FoxO3 led to pulmonary emphysema and exaggerated inflammatory response in lungs of mice exposed to CS. We further showed that CS induced the translocation of FoxO3 into the nucleus where FoxO3 interacted with NF-κB and disrupted NF-κB DNA-binding ability, leading to inhibition of its activity. Targeted disruption of FoxO3 also resulted in downregulation of antioxidant genes in mouse lungs in response to CS exposure. These results suggest that FoxO3 plays a pivotal role in regulation of lung inflammatory response and antioxidant genes, and deficiency of FoxO3 results in development of chronic obstructive pulmonary disease/emphysema.
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Affiliation(s)
- Jae-woong Hwang
- Lung Biology and Disease Program, Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY 14642, USA
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Ishikawa N, Mazur W, Toljamo T, Vuopala K, Rönty M, Horimasu Y, Kohno N, Kinnula VL. Ageing and long-term smoking affects KL-6 levels in the lung, induced sputum and plasma. BMC Pulm Med 2011; 11:22. [PMID: 21569324 PMCID: PMC3114798 DOI: 10.1186/1471-2466-11-22] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Accepted: 05/11/2011] [Indexed: 11/21/2022] Open
Abstract
Background KL-6 is a high-molecular-weight glycoprotein classified as a human MUC1 mucin. It was hypothesized that KL-6 could be detectable in the circulating blood and especially in airway secretions in lung diseases associated with mucus production such as chronic obstructive pulmonary disease (COPD). Additional aims of this study were to investigate whether the levels of KL-6 in plasma and sputum are related to ageing and smoking history. Methods The concentrations of KL-6 in plasma and induced sputum supernatants from young and/or middle aged/elderly non-smokers, smokers and patients with COPD were assayed by ELISA (n = 201). The subjects were classified into five groups according to age, smoking status and presence of COPD. In addition, KL-6 expression in control and diseased lung i.e. samples from patients with COPD (n = 28), were analyzed by immunohistochemistry and digital image analysis. Results The plasma levels of KL-6 increased with age both in non-smokers and smokers. Among middle aged/elderly subjects, plasma KL-6 levels in all smokers regardless of COPD were significantly higher than in non-smokers, whereas sputum levels of KL-6 were significantly higher in COPD compared not only to non-smokers but also to smokers. KL-6 was more prominently expressed in the bronchiolar/alveolar epithelium in COPD than in the control lungs. Plasma and sputum KL-6 levels correlated inversely with obstruction and positively with smoking history and ageing. The linear multiple regression analysis confirmed that age and cigarette smoking had independent effects on plasma KL-6. Conclusions KL-6 increases with ageing and chronic smoking history, but prospective studies will be needed to elucidate the significance of KL-6 in chronic airway diseases.
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Affiliation(s)
- Nobuhisa Ishikawa
- Department of Medicine, Pulmonary Division, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
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Zhan X, Desiderio DM. Nitroproteins Identified in Human Ex-smoker Bronchoalveolar Lavage Fluid. Aging Dis 2011; 2:100-115. [PMID: 22396869 PMCID: PMC3295046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 11/05/2010] [Accepted: 11/06/2010] [Indexed: 05/31/2023] Open
Abstract
The long-term goal of our study is to identify chronic obstructive pulmonary disease (COPD)-related bronchoalveolar lavage fluid (BALF) nitroproteins to clarify COPD pathological mechanisms and to discover biomarkers of COPD. The goal of the present study was to detect the presence of, and potential roles of, nitroproteins in, human ex-smoker (without COPD) BALF samples. Nitroproteins were immunoprecipitated from two separate BALF samples, and digested with trypsin; and tryptic peptides were analyzed with matrix-assisted laser desorption/ionization (MALDI)-tandem mass spectrometry (MS/MS). Each MS/MS spectrum was composed of accumulated scans (n = 50-100). The MS/MS data were searched with BioWorks 2.0 TuboSequest in the SwissProt database to generate the amino acid sequence, which was evaluated manually. Eleven nitrotyrosine sites were identified in eight proteins, including progestin and adipoQ receptor family member III, zinc finger protein 432, proteasome subunit alpha type 2, NADH-ubiquinone oxidoreductase B14, slit homolog 1 protein, lysozyme, aldose 1-epimerase, and PTS system lactose-specific EIICB component. Each nitrotyrosine site was located within a specific protein domain and motif. Those identified nitrated proteins could be involved in multiple functional metabolic systems, including transcriptional regulation, mitochondrial complex, immune system, and energy metabolism.
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Affiliation(s)
- Xianquan Zhan
- Charles B. Stout Neuroscience Mass Spectrometry Laboratory
- Department of Neurology
- Clinical and Translational Science Institute
| | - Dominic M. Desiderio
- Charles B. Stout Neuroscience Mass Spectrometry Laboratory
- Department of Neurology
- Clinical and Translational Science Institute
- Department of Molecular Science
- University of Tennessee Cancer Institute, The University of Tennessee Health Science Center, Memphis, TN 38163 USA
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Yao H, Rahman I. Current concepts on oxidative/carbonyl stress, inflammation and epigenetics in pathogenesis of chronic obstructive pulmonary disease. Toxicol Appl Pharmacol 2011; 254:72-85. [PMID: 21296096 DOI: 10.1016/j.taap.2009.10.022] [Citation(s) in RCA: 172] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Revised: 10/04/2009] [Accepted: 10/04/2009] [Indexed: 12/17/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a global health problem. The current therapies for COPD are poorly effective and the mainstays of pharmacotherapy are bronchodilators. A better understanding of the pathobiology of COPD is critical for the development of novel therapies. In the present review, we have discussed the roles of oxidative/aldehyde stress, inflammation/immunity, and chromatin remodeling in the pathogenesis of COPD. An imbalance of oxidants/antioxidants caused by cigarette smoke and other pollutants/biomass fuels plays an important role in the pathogenesis of COPD by regulating redox-sensitive transcription factors (e.g., NF-κB), autophagy and unfolded protein response leading to chronic lung inflammatory response. Cigarette smoke also activates canonical/alternative NF-κB pathways and their upstream kinases leading to sustained inflammatory response in lungs. Recently, epigenetic regulation has been shown to be critical for the development of COPD because the expression/activity of enzymes that regulate these epigenetic modifications have been reported to be abnormal in airways of COPD patients. Hence, the significant advances made in understanding the pathophysiology of COPD as described herein will identify novel therapeutic targets for intervention in COPD.
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Affiliation(s)
- Hongwei Yao
- Department of Environmental Medicine, Lung Biology and Disease Program, University of Rochester Medical Center, Rochester, NY 1464, USA
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Ghdifan S, Verin E, Couderc L, Lubrano M, Michelet I, Marguet C. Exhaled nitric oxide fractions are well correlated with clinical control in recurrent infantile wheeze treated with inhaled corticosteroids. Pediatr Allergy Immunol 2010; 21:1015-20. [PMID: 20977500 DOI: 10.1111/j.1399-3038.2010.01076.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fractional exhaled nitric oxide (FeNO) is a non-invasive marker of bronchial inflammation in asthma. However, the interest of FeNO measurement remained limited in infantile wheeze. The aim of this prospective study was to evaluate the feasibility and reproducibility of FeNO off-line measurement in very young children with recurrent wheeze and to assess whether clinical control of infantile wheeze correlates with FeNO levels. Two exhalation samples were collected in mylar balloon during quite tidal breathing. FeNO measurements were performed off-line by a NO analyzer. The participating patients were aged ≤36 months, wheezes had started before the age of 24 months, and they were receiving maintenance treatment with inhaled corticosteroids for at least 3 months duration. The studied population comprised of 40 uncontrolled infants with persistent wheezy respiratory symptoms, median age 14.5 months, and 40 with optimal controlled infantile wheeze, median age 14 months. The reproducibility was excellent (r = 0.95; p < 0.0001). There was a significant difference in FeNO levels between the groups of persistent wheeze and well-controlled infants: 19.8 (2.5-99.3) ppb vs. 7.7 (0.6-29.5) ppb, p < 0.0001. At a FeNO level >15 ppb, the predictive values for uncontrolled disease were as follows: positive predictive value = 65%, negative predictive value = 90%. FeN0 levels were not increased by atopy or passive tobacco. Off-line assessment of FeNO is feasible, reproducible, and well accepted in wheezy very young children. Optimal clinical control of infantile wheeze appeared to be associated with the control of bronchial inflammation when evaluated by FeNO measurements.
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Affiliation(s)
- Sufian Ghdifan
- Division of Pediatric Pulmonology, Allergy, and Cystic Fibrosis Division of Respiratory Physiology, Charles Nicolle University Hospital, INSERM CIC 204, Rouen University, Rouen, France
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Ishikawa N, Ohlmeier S, Salmenkivi K, Myllärniemi M, Rahman I, Mazur W, Kinnula VL. Hemoglobin α and β are ubiquitous in the human lung, decline in idiopathic pulmonary fibrosis but not in COPD. Respir Res 2010; 11:123. [PMID: 20836851 PMCID: PMC2949726 DOI: 10.1186/1465-9921-11-123] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Accepted: 09/13/2010] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) are disorders of the lung parenchyma. They share the common denominators of a progressive nature and poor prognosis. The goal was to use non-biased proteomics to discover new markers for these diseases. METHODS Proteomics of fibrotic vs. control lung tissue suggested decreased levels of several spots in the lung specimens of IPF patients, which were identified as Hemoglobin (Hb) α and β monomers and Hbα complexes. The Hbα and β monomers and complexes were investigated in more detail in normal lung and lung specimens of patients with IPF and COPD by immunohistochemistry, morphometry and mass spectrometry (MS). RESULTS Both Hb monomers, in normal lung, were expressed especially in the alveolar epithelium. Levels of Hbα and β monomers and complexes were reduced/lost in IPF but not in the COPD lungs when compared to control lung. MS-analyses revealed Hbα modification at cysteine105 (Cysα105), preventing formation of the Hbα complexes in the IPF lungs. Hbα and Hbβ were expressed as complexes and monomers in the lung tissues, but were secreted into the bronchoalveolar lavage fluid and/or induced sputum supernatants as complexes corresponding to the molecular weight of the Hb tetramer. CONCLUSIONS The abundant expression of the oxygen carrier molecule Hb in the normal lung epithelium and its decline in IPF lung are new findings. The loss of Hb complex formation in IPF warrants further studies and may be considered as a disease-specific modification.
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Affiliation(s)
- Nobuhisa Ishikawa
- Department of Medicine, Pulmonary Division, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
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Glover EI, Yasuda N, Tarnopolsky MA, Abadi A, Phillips SM. Little change in markers of protein breakdown and oxidative stress in humans in immobilization-induced skeletal muscle atrophy. Appl Physiol Nutr Metab 2010; 35:125-33. [PMID: 20383222 DOI: 10.1139/h09-137] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A number of studies in rodents suggest that disuse atrophy results from a large increase in proteolysis affected by, or accompanying, increased oxidative stress. Little information is available, however, about the effects of immobilization on markers of muscle protein breakdown and oxidative stress in humans. Therefore, the purpose of this investigation was to measure markers of breakdown or oxidative stress in subjects who underwent 14 days of knee-brace-mediated immobilization. Vastus lateralis samples taken from 21 young subjects before, and 2 days and 14 days after, single leg immobilization were measured for ubiquitin-protein conjugates, caspase 3/7 activity, the 14-kDa caspase-3 cleaved actin fragment, 4-hydroxy-2-nonenal (4-HNE) adducts, and protein carbonyls. Quadriceps cross-sectional area decreased by 5.7% +/- 1.1% (p < 0.0001) following immobilization. Ubiquitin-protein conjugates were elevated at 2 days of immobilization (12%, p < 0.05) but were not different from baseline at 14 days. Levels of the 14-kDa actin fragment and caspase 3/7 activity did not change over the immobilization period. The oxidative stress markers, 4-HNE adducts and protein carbonyls, did not change at any time point. These static measures of breakdown and oxidative modification suggest that a small increase in protein ubiquitination occurs early (2 days), but elevations in ubiquitinated or oxidatively modified proteins are not sustained during the later phase (14 days) of uncomplicated disuse atrophy in humans, suggesting that these pathways are not playing a major role in simple disuse-induced atrophic loss of protein mass.
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Affiliation(s)
- Elisa I Glover
- Department of Kinesiology-Exercise Metabolic Research Group, McMaster University, Hamilton, Ontario, Canada
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Comandini A, Rogliani P, Nunziata A, Cazzola M, Curradi G, Saltini C. Biomarkers of lung damage associated with tobacco smoke in induced sputum. Respir Med 2009; 103:1592-613. [DOI: 10.1016/j.rmed.2009.06.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 05/23/2009] [Accepted: 06/01/2009] [Indexed: 11/25/2022]
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Oberley-Deegan RE, Regan EA, Kinnula VL, Crapo JD. Extracellular Superoxide Dismutase and Risk of COPD. COPD 2009; 6:307-12. [DOI: 10.1080/15412550903085193] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Ilumets H, Rytilä PH, Sovijärvi AR, Tervahartiala T, Myllärniemi M, Sorsa TA, Kinnula VL. Transient elevation of neutrophil proteinases in induced sputum during COPD exacerbation. Scandinavian Journal of Clinical and Laboratory Investigation 2009; 68:618-23. [DOI: 10.1080/00365510801983773] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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