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Sulfur mustard and biological ageing: A multisystem biological health score approach as an extension of the allostatic load in Sardasht chemical veterans. Int Immunopharmacol 2021; 101:108375. [PMID: 34810125 DOI: 10.1016/j.intimp.2021.108375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Mustard gas as a chemical weapon has been used in wars and its long-term side effects are substantial in the human body. This study was aimed to apply an extension of allostatic load, known as synthetic biological health score (BHS), including the wear-and-tear of four physiological systems (endocrine, inflammatory, cardiovascular and metabolic systems) and two organs (liver and kidney) to estimate biological aging caused by sulfur mustard (SM) gas poisoning. METHODS The plasma samples were prepared from two following groups of people; 1) 446 individuals exposed to SM gas in 1987. 2) 115 healthy members, at the same range of age and residence, as the non-exposed group. These people were chosen from the same patients' families and have not had any exposure to SM or pulmonary dysfunction. To estimate BHS, 18 blood-derived biomarkers of the mentioned systems and organs were measured and the relative contribution of many social and body parameters across the age groups was explored. RESULTS It was revealed, in BHS calculation, the cardiovascular system had the most effect. Also, in the SM group, BHS was significantly higher than in the control group. This feature has a positive correlation with physical parameter (BMI) and a negative correlation with social parameters (salary and educational levels). CONCLUSION The multisystem BHS could be useful in the evaluation of biological aging due to SM exposure. Social (education, good-paying job) and physical (BMI) parameters could influence BHS and the higher BHS indicates the progress of biological aging due to mustard gas.
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Geretto M, Ferrari M, De Angelis R, Crociata F, Sebastiani N, Pulliero A, Au W, Izzotti A. Occupational Exposures and Environmental Health Hazards of Military Personnel. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:5395. [PMID: 34070145 PMCID: PMC8158372 DOI: 10.3390/ijerph18105395] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/05/2021] [Accepted: 05/09/2021] [Indexed: 01/20/2023]
Abstract
BACKGROUND Military personnel are frequently exposed to environmental pollutants that can cause a variety of diseases. METHODS This review analyzed publications regarding epidemiological and biomonitoring studies on occupationally-exposed military personnel. RESULTS The exposures include sulfur mustard, organ chlorines, combustion products, fuel vapors, and ionizing and exciting radiations. Important factors to be considered are the lengths and intensities of exposures, its proximity to the sources of environmental pollutants, as well as confounding factors (cigarette smoke, diet, photo-type, healthy warrior effect, etc.). Assessment of environmental and individual exposures to pollutants is crucial, although often omitted, because soldiers have often been evaluated based on reported health problems rather than on excessive exposure to pollutants. Biomarkers of exposures and effects are tools to explore relationships between exposures and diseases in military personnel. Another observation from this review is a major problem from the lack of suitable control groups. CONCLUSIONS This review indicates that only studies which analyzed epidemiological and molecular biomarkers in both exposed and control groups would provide evidence-based conclusions on exposure and disease risk in military personnel.
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Affiliation(s)
- Marta Geretto
- Department of Experimental Medicine, University of Genoa, 16132 Genoa, Italy;
| | - Marco Ferrari
- Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA;
| | - Roberta De Angelis
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy;
| | - Filippo Crociata
- General Inspectorate of Military Health, 00184 Rome, Italy; (F.C.); (N.S.)
| | - Nicola Sebastiani
- General Inspectorate of Military Health, 00184 Rome, Italy; (F.C.); (N.S.)
| | | | - William Au
- Faculty of Medicine, Pharmacy, Science and Technology University of Medicine, Pharmacy, Science and Technology, 540142 Targu Mures, Romania;
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Alberto Izzotti
- Department of Experimental Medicine, University of Genoa, 16132 Genoa, Italy;
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
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Long-term Respiratory Effects of Mustard Vesicants. Toxicol Lett 2020; 319:168-174. [PMID: 31698045 DOI: 10.1016/j.toxlet.2019.10.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/24/2019] [Accepted: 10/29/2019] [Indexed: 02/06/2023]
Abstract
Sulfur mustard and related vesicants are cytotoxic alkylating agents that cause severe damage to the respiratory tract. Injury is progressive leading, over time, to asthma, bronchitis, bronchiectasis, airway stenosis, and pulmonary fibrosis. As there are no specific therapeutics available for victims of mustard gas poisoning, current clinical treatments mostly provide only symptomatic relief. In this article, the long-term effects of mustards on the respiratory tract are described in humans and experimental animal models in an effort to define cellular and molecular mechanisms contributing to lung injury and disease pathogenesis. A better understanding of mechanisms underlying pulmonary toxicity induced by mustards may help in identifying potential targets for the development of effective clinical therapeutics aimed at mitigating their adverse effects.
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Ghazanfari T, Ghasemi H, Yaraee R, Mahmoudi M, Javadi MA, Soroush MR, Faghihzadeh S, Majd AMM, Shakeri R, Babaei M, Heidary F, Hassan ZM. Tear and serum interleukin-8 and serum CX3CL1, CCL2 and CCL5 in sulfur mustard eye-exposed patients. Int Immunopharmacol 2019; 77:105844. [PMID: 31669888 DOI: 10.1016/j.intimp.2019.105844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND The serum and tear levels of four inflammatory chemokines were evaluated in sulfur mustard (SM)-exposed with serious ocular problems. MATERIALS AND METHODS In this study, 128 SM-exposed patients and 31 healthy control participants participated. Tear and serum levels of chemokines were assessed by ELISA method. RESULTS There was no significant difference in the serum level of IL-8/CXCL8, CX3CL1/fractalkine, CCL2/MCP-1, and CCL5/RANTES between all SM-exposed subjects and control groups. The tear level of IL-8 in the SM-exposed group was lower than the control group, but the difference was not significant. In the SM-exposed group with the abnormalities in tear breakup time (TBUT) test, fundus and pannus formation were significantly higher than SM-exposed patients without these problems. CX3CL1 levels have significantly increased in SM-exposed group with blepharitis, pterygium, and conjunctival pigmentation as compared with the control group. Besides, significantly higher levels of CX3CL1 were observed in SM-exposed group with or without bulbar conjunctival hyperemia and abnormal vessels a well as with fundus abnormality compared to the control group. Only, SM-exposed group with subconjunctival fibrosis had significantly lower levels of CCL5 than SM-exposed group without this problem. CONCLUSION The higher level of CX3CL1 and consistent levels of IL-8/CXCL8, MCP-1/CCL2, and RANTES/CCL5 in SM-exposed individuals may indicate an anti-inflammatory response against the destructive effects of SM gas. High tear level of IL-8/CXCL8 reflects the severity of ocular surface abnormalities, yet significantly low tear level found in mild SM-exposed subgroup compared with the control group. The lower levels of CX3CL1 and RANTES/CCL5 may represent the different pathophysiology which requires further studies.
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Affiliation(s)
- Tooba Ghazanfari
- Immunoregulation Research Center, Shahed University, Tehran, Iran.
| | - Hassan Ghasemi
- Department of Ophthalmology, Shahed University, 3319118651 Tehran, Iran
| | - Roya Yaraee
- Department of Immunology and Immunoregulation Research Center, Shahed University, Tehran, Iran
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, 9138813944 Mashhad, Iran.
| | - Mohammad Ali Javadi
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, 1983969411 Tehran, Iran
| | - Mohammad Reza Soroush
- Janbazan Medical and Engineering Research Center (JMERC), NO.17, Farrokh St., Moghaddas Ardebily Ave., Chamran Highway, 1985946531 Tehran, Iran
| | - Soghrat Faghihzadeh
- Department of Biostatistics and Social Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | | | - Raheleh Shakeri
- Department of Biological Science and Biotechnology, Faculty of Science, 6617715175, University of Kurdistan, Sanandaj, Iran
| | - Mahmoud Babaei
- Department of Ophthalmology, Baqiyatallah University of Medical Sciences, 1435916471 Tehran, Iran; Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Heidary
- Immunoregulation Research Center, Shahed University, Tehran, Iran
| | - Zuhair Mohammad Hassan
- Department of Immunology, School of Medical Sciences, Tarbiat Modares University, 14115111 Tehran, Iran.
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Majd AMM, Faghihzadeh S, Pourfarzam S, Eghtedardoost M, Jamali D, Mirsharif ES, Dilmaghanian R, Ghazanfari T. Serum and sputum levels of IL-17, IL-21, TNFα and mRNA expression of IL-17 in sulfur mustard lung tissue with long term pulmonary complications (28 years after sulfur mustard exposure). Int Immunopharmacol 2019; 76:105828. [DOI: 10.1016/j.intimp.2019.105828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/12/2019] [Accepted: 08/12/2019] [Indexed: 01/16/2023]
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DNA damage and telomere length shortening in the peripheral blood leukocytes of 20 years SM-exposed veterans. Int Immunopharmacol 2018; 61:37-44. [PMID: 29803135 DOI: 10.1016/j.intimp.2018.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/13/2018] [Accepted: 05/14/2018] [Indexed: 12/21/2022]
Abstract
Sulfur mustard (SM) is a vesicant chemical warfare agent, and a very potent alkylating agent. SM exerts its cytotoxicity via direct alkylation of biomacromolecules, and overproduction of reactive oxygen species (ROS). Previous studies have shown that SM-induced oxidative stress has adverse effects on antioxidant defense system, and damages lipids and proteins. The aim of this study was to investigate the effect of SM-induced oxidative stress on DNA damage, and cellular senescence in SM-exposed victims. For this purpose, MDA levels as a measure of oxidative stress in the serum, 8-oxo-dG content of the genomic DNA, and OGG1 expression as two biomarkers of oxidative DNA damage, as well as, telomere length, and p16INK4a expression as two biomarkers of cellular senescence were measured in the peripheral blood leukocytes of 215 males who were exposed to SM 20 to 25 years ago, and 53 unexposed healthy males as the control group. Our results indicated that the levels of 8-oxo-dG, and OGG1 mRNA expression were significantly higher in SM-exposed individuals. Furthermore, a significant increase in the expression of p16INK4a was observed in SM-exposed patients, and leukocyte telomere length (LTL) was also significantly shorter in severe/very severe cases of SM-exposed patients when compared with unexposed controls. In conclusion, our data indicate that oxidative DNA damage is higher in SM-exposed patients, and their immune system has subjected to cellular senescence.
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Shahriary A, Ghanei M, Rahmani H. The systemic nature of mustard lung: Comparison with COPD patients. Interdiscip Toxicol 2018; 10:114-127. [PMID: 30174535 PMCID: PMC6107649 DOI: 10.1515/intox-2017-0018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 10/02/2017] [Indexed: 01/14/2023] Open
Abstract
Sulphur mustard (SM) is a powerful blister-causing alkylating chemical warfare agent used by Iraqi forces against Iran. One of the known complications of mustard gas inhalation is mustard lung which is discussed as a phenotype of chronic obstructive pulmonary disease (COPD). In this complication, there are clinical symptoms close to COPD with common etiologies, such as in smokers. Based on information gradually obtained by conducting the studies on mustard lung patients, systemic symptoms along with pulmonary disorders have attracted the attention of researchers. Changes in serum levels of inflammatory markers, such as C-reactive protein (CRP), tumor necrosis factor alpha (TNF-α), nuclear factor κB (NF-κB), matrix metalloproteinases (MMPs), interleukin (IL), chemokines, selectins, immunoglobulins, and signs of imbalance in oxidant-antioxidant system at serum level, present the systemic changes in these patients. In addition to these, reports of extra-pulmonary complications, such as osteoporosis and cardiovascular disease are also presented. In this study, the chance of developing the systemic nature of this lung disease have been followed on using the comparative study of changes in the mentioned markers in mustard lung and COPD patients at stable phases and the mechanisms of pathogenesis and phenomena, such as airway remodeling in these patients.
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Affiliation(s)
- Alireza Shahriary
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hossein Rahmani
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Dastjerdi AH, Behboudi H, Kianmehr Z, Taravati A, Naghizadeh MM, Kaboudanian Ardestani S, Ghazanfari T. Association of glutathione S-transferase polymorphisms with the severity of mustard lung. ACTA ACUST UNITED AC 2017; 7:255-261. [PMID: 29435433 PMCID: PMC5801537 DOI: 10.15171/bi.2017.30] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/25/2017] [Accepted: 08/27/2017] [Indexed: 12/25/2022]
Abstract
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Introduction:
Glutathione S-transferase (GST) is one of the major detoxifiers in alveoli. Polymorphism in GST genes can influence the ability of individuals to suppress oxidative stress and inflammation. The present study was aimed to explore the hypothesis that the genetic polymorphisms of GST T1, M1 and P1 are associated with the severity of the mustard lung in the sulfur mustard-exposed individuals.
Methods: Blood samples were taken from 185 sulfur mustard-exposed and 57 unexposed subjects. According to the stage of the mustard lung, sulfur mustard-exposed patients were categorized in the mild/moderate and severe/very severe groups. A multiplex PCR method was conducted to identify GSTM1 and GSTT1 null genotypes. To determine the polymorphisms of GSTP1 in exon 5 (Ile105Val) and exon 6 (Ala114Val), RFLP-PCR method was performed.
Results: The frequency of GSTM1 homozygous deletion was significantly higher in the severe/very severe patients compared with the mild/moderate subjects (66.3% vs. 48%, P = 0.013). The GSTM1 null genotype was associated with the severity of mustard lung (adjusted odds ratio [OR], 2.257; 95% CI, 1.219-4.180). There was no significant association between GSTT1 and GSTP1 polymorphisms with the severity of the mustard lung.
Conclusion: The different distribution of GSTM1 null genotype in severe/very severe and mild/moderate groups indicated that the severity of the mustard lung might be associated with the genetic polymorphism(s).
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Affiliation(s)
| | - Hossein Behboudi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Zahra Kianmehr
- Department of Biology, Faculty of Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Ali Taravati
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Mohammad Mehdi Naghizadeh
- Noncommunicable Diseases Research Center, Fasa University of Medical Science, Fasa, Fars Province, Iran
| | | | - Tooba Ghazanfari
- Immunoregulation Research Center, Shahed University, Tehran, Iran
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Ragweed-allergic subjects have decreased serum levels of chemokines CCL2, CCL3, CCL4 and CCL5 out of the pollen season. Cent Eur J Immunol 2016; 40:442-6. [PMID: 26862308 PMCID: PMC4737740 DOI: 10.5114/ceji.2015.56965] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 08/19/2015] [Indexed: 11/17/2022] Open
Abstract
CC-chemokines are important mediators of the allergic responses and regulate the cell trafficking. The aim of this study was to examine the serum levels of CCL2/MCP-1, CCL3/MIP-1α, CCL4/MIP-1β and CCL5/RANTES, and to determine whether there are differences between ragweed-allergic subjects and healthy individuals out of the pollen season. Peripheral blood samples were collected from 24 subjects allergic to ragweed pollen and 12 healthy controls. Serum concentrations of chemokines/cytokines were measured by an enzyme-linked immunosorbent assay. We observed significantly decreased concentrations of CCL2/MCP-1, CCL3/MIP-1α, CCL4/MIP-1β and CCL5/RANTES in the sera of ragweed-allergic patients compared to the healthy individuals (32.2 vs. 106.4 pg/ml, 89.5 vs. 135.7 pg/ml, 63.4 vs. 119.2 pg/ml and 11.2 vs. 18.1 ng/ml, respectively, p < 0.01). In contrast to the CC-chemokines, the serum levels of IL-8/CXCL8 showed a significant increase (p < 0.05) in the allergic group compared to the non-allergic subjects. Interleukin 4 levels were similar in both groups. In the sera of allergic patients, we have also detected significantly elevated levels of ragweed-specific IgE and IgG. However, decreased serum concentrations of the four CC-chemokines and elevated levels of IL-8/CXCL8 can be used as biomarkers for more accurate evaluation of the allergic status of patients with pollen allergy out of the season, to study the mechanisms for activation/inhibition of the subclinical allergic responses and for development of therapeutic strategies.
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Ghazanfari T, Mostafaie A, Yaraee R, Pourfarzam S, Faghihzadeh S, Rezaei A, Mahmoudi M, Vaez-Mahdavi MR, Moaiedmohseni S, Soroush MR, Naghizadeh MM, Faghihzadeh E, Hassan ZM. Are serum levels of immunoglobulin classes and IgG subclasses involved in delayed pulmonary complications induced by sulfur mustard? Sardasht-Iran Cohort Study. Int Immunopharmacol 2013; 17:936-43. [DOI: 10.1016/j.intimp.2012.12.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 10/19/2012] [Accepted: 12/27/2012] [Indexed: 11/30/2022]
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Association of chemokines and prolactin with cherry angioma in a sulfur mustard exposed population — Sardasht-Iran cohort study. Int Immunopharmacol 2013; 17:991-5. [DOI: 10.1016/j.intimp.2012.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 12/05/2012] [Accepted: 12/27/2012] [Indexed: 11/22/2022]
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Tang FR, Loke WK. Sulfur mustard and respiratory diseases: Revisit with special reference to the "Comments on 'Sulfur Mustard and Respiratory Diseases', Tang and Loke ( 2012 ) and a prepared Integrated Mechanism for Chronic Pulmonary Disease from Exposure to Sulfur Mustard" by Saburi and Ghanei ( 2013 ). Crit Rev Toxicol 2013; 43:277-81. [PMID: 23402656 DOI: 10.3109/10408444.2013.764843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pourfarzam S, Yaraee R, Hassan ZM, Yarmohammadi ME, Faghihzadeh S, Soroush MR, Fallahi F, Ardestani SK, Ebtekar M, Moaiedmohseni S, Naghizadeh MM, Ghasemi H, Shams J, Ghazanfari T. Chemokines, MMP-9 and PMN elastase in spontaneous sputum of sulfur mustard exposed civilians: Sardasht-Iran Cohort Study. Int Immunopharmacol 2013; 17:958-63. [PMID: 23370297 DOI: 10.1016/j.intimp.2012.12.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 12/06/2012] [Accepted: 12/27/2012] [Indexed: 11/26/2022]
Abstract
Chemokines play an important role in acute and chronic pulmonary diseases. The aim of this study was to evaluate the levels of chemokines, MMP-9, and PMN elastase in spontaneous sputum and serum of patients 20 years after SM exposure. In context of Sardasht-Iran Cohort Study (SICS) 40 male volunteers with a history of SM exposure in June 1987 and complain of excessive sputum were recruited. The volunteers were clinically examined and their history was collected by internists. Sputum and serum levels of IL-8, fractalkine, MCP-1, RANTES, MMP-9, and PMN elastase were measured using ELISA kits (R&D System). Spirometries were performed on all the participants. Sputum level of fractalkine was significantly lower in the hospitalized group (N=16, Median=1.05; IQR=0.41-2.62) than non-hospitalized group (N=18, 4.031; IQR=0.947-8.203) (p=0.042). However, serum levels of fractalkine were higher in the hospitalized group (Mean±SD=2.08±5.09) than in the non-hospitalized (Mean±SD=0.53±0.87) group (T-test, p=0.03). Serum levels of PMN-elastase were also higher in the hospitalized group (Mean±SD; 64,794.43±26,820.08) than in the non-hospitalized group (Mean±SD=44,049.33±17,675.85) (p=0.017). There was no relationship between the cytokines and the studied factors in sputum and the GOLD classification, but the serum levels of fractalkine and MMP-9 were significantly higher in the more severe (grades 3-4) group. There was no significant correlation between sputum and serum levels of measured inflammatory mediators and pulmonary complications in the patients who were exposed to SM 20 years earlier. Pathophysiologic process involved in SM induced pulmonary problems might be different from those in other chronic pulmonary diseases such as COPD and asthma.
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Affiliation(s)
- Shahryar Pourfarzam
- Immunoregulation Research Center, Shahed University, Tehran, Islamic Republic of Iran; Department of Internal Medicine, Shahed University, Tehran, Islamic Republic of Iran
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15
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Sunil VR, Shen J, Patel-Vayas K, Gow AJ, Laskin JD, Laskin DL. Role of reactive nitrogen species generated via inducible nitric oxide synthase in vesicant-induced lung injury, inflammation and altered lung functioning. Toxicol Appl Pharmacol 2012; 261:22-30. [PMID: 22446026 DOI: 10.1016/j.taap.2012.03.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/07/2012] [Accepted: 03/07/2012] [Indexed: 10/28/2022]
Abstract
Pulmonary toxicity induced by sulfur mustard and related vesicants is associated with oxidative stress. In the present studies we analyzed the role of reactive nitrogen species (RNS) generated via inducible nitric oxide synthase (iNOS) in lung injury and inflammation induced by vesicants using 2-chloroethyl ethyl sulfide (CEES) as a model. C57Bl/6 (WT) and iNOS-/- mice were sacrificed 3 days or 14 days following intratracheal administration of CEES (6 mg/kg) or control. CEES intoxication resulted in transient (3 days) increases in bronchoalveolar lavage (BAL) cell and protein content in WT, but not iNOS-/- mice. This correlated with expression of Ym1, a marker of oxidative stress in alveolar macrophages and epithelial cells. In contrast, in iNOS-/- mice, Ym1 was only observed 14 days post-exposure in enlarged alveolar macrophages, suggesting that they are alternatively activated. This is supported by findings that lung tumor necrosis factor and lipocalin Lcn2 expression, mediators involved in tissue repair were also upregulated at this time in iNOS-/- mice. Conversely, CEES-induced increases in the proinflammatory genes, monocyte chemotactic protein-1 and cyclooxygenase-2, were abrogated in iNOS-/- mice. In WT mice, CEES treatment also resulted in increases in total lung resistance and decreases in compliance in response to methacholine, effects blunted by loss of iNOS. These data demonstrate that RNS, generated via iNOS play a role in the pathogenic responses to CEES, augmenting oxidative stress and inflammation and suppressing tissue repair. Elucidating inflammatory mechanisms mediating vesicant-induced lung injury is key to the development of therapeutics to treat mustard poisoning.
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Affiliation(s)
- Vasanthi R Sunil
- Department of Pharmacology and Toxicology, Rutgers University, Ernest Mario School of Pharmacy Piscataway, NJ, USA.
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Ghasemi H, Ghazanfari T, Yaraee R, Rafii AB, Pourfarzam S, Soroush MR, Babaei M, Faghihzadeh S, Naghizadeh MM, Hassan ZM. Long-term ocular consequences of sulfur mustard in lung-injured war veterans. Cutan Ocul Toxicol 2011; 31:33-7. [DOI: 10.3109/15569527.2011.595751] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ghabili K, Agutter PS, Ghanei M, Ansarin K, Shoja MM. Mustard gas toxicity: the acute and chronic pathological effects. J Appl Toxicol 2010; 30:627-43. [PMID: 20836142 DOI: 10.1002/jat.1581] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 07/15/2010] [Accepted: 07/19/2010] [Indexed: 11/11/2022]
Abstract
Ever since it was first used in armed conflict, mustard gas (sulfur mustard, MG) has been known to cause a wide range of acute and chronic injuries to exposure victims. The earliest descriptions of these injuries were published during and in the immediate aftermath of the First World War, and a further series of accounts followed the Second World War. More recently, MG has been deployed in warfare in the Middle East and this resulted in large numbers of victims, whose conditions have been studied in detail at hospitals in the region. In this review, we bring together the older and more recent clinical studies on MG toxicity and summarize what is now known about the acute and chronic effects of the agent on the eyes, skin, respiratory tract and other physiological systems. In the majority of patients, the most clinically serious long-term consequences of MG poisoning are on the respiratory system, but the effects on the skin and other systems also have a significant impact on quality of life. Aspects of the management of these patients are discussed.
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Affiliation(s)
- Kamyar Ghabili
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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