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Xie Z, Chen JY, Gao H, Keith RJ, Bhatnagar A, Lorkiewicz P, Srivastava S. Global Profiling of Urinary Mercapturic Acids Using Integrated Library-Guided Analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:10563-10573. [PMID: 37432892 PMCID: PMC11064822 DOI: 10.1021/acs.est.2c09554] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Urinary mercapturic acids (MAs) are often used as biomarkers for monitoring human exposures to occupational and environmental xenobiotics. In this study, we developed an integrated library-guided analysis workflow using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry. This method includes expanded assignment criteria and a curated library of 220 MAs and addresses the shortcomings of previous untargeted approaches. We employed this workflow to profile MAs in the urine of 70 participants─40 nonsmokers and 30 smokers. We found approximately 500 MA candidates in each urine sample, and 116 MAs from 63 precursors were putatively annotated. These include 25 previously unreported MAs derived mostly from alkenals and hydroxyalkenals. Levels of 68 MAs were comparable in nonsmokers and smokers, 2 MAs were higher in nonsmokers, and 46 MAs were elevated in smokers. These included MAs of polycyclic aromatic hydrocarbons and hydroxyalkenals and those derived from toxicants present in cigarette smoke (e.g., acrolein, 1,3-butadiene, isoprene, acrylamide, benzene, and toluene). Our workflow allowed profiling of known and unreported MAs from endogenous and environmental sources, and the levels of several MAs were increased in smokers. Our method can also be expanded and applied to other exposure-wide association studies.
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Affiliation(s)
- Zhengzhi Xie
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Jin Y Chen
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Hong Gao
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Rachel J Keith
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Aruni Bhatnagar
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Pawel Lorkiewicz
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Department Center for Cardiometabolic Science, University of Louisville, Louisville, Kentucky 40202, United States
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
| | - Sanjay Srivastava
- American Heart Association-Tobacco Regulation and Addiction Center, University of Louisville, Louisville, Kentucky 40202, United States
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, Kentucky 40202, United States
- Superfund Research Center, University of Louisville, Louisville, Kentucky 40202, United States
- Division of Environmental Medicine, Department of Medicine, University of Louisville, Louisville, Kentucky 40202, United States
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Ha EK, Kim JH, Park D, Lee E, Lee SW, Jee HM, Shin YH, Han MY. Personal Exposure to Total VOC Is Associated With Symptoms of Atopic Dermatitis in Schoolchildren. J Korean Med Sci 2022; 37:e63. [PMID: 35226421 PMCID: PMC8885456 DOI: 10.3346/jkms.2022.37.e63] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/17/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The urinary levels of volatile organic compound (VOC) metabolites provide individual exposure levels compared to data obtained by measuring these compounds in ambient air. We aimed to investigate the association between personal urinary concentrations of VOC metabolites and symptoms of atopic dermatitis in schoolchildren. METHODS Nine urinary VOC metabolites were analyzed from urine samples of 149 children. Diagnosis of atopic dermatitis was determined using standardized questionnaires. Pediatricians visited the schools and rated the severity of symptoms using the SCORing Atopic Dermatitis (SCORAD) in all children. RESULTS Forty-five children (30.2%) had atopic dermatitis based on the International Study of Asthma and Allergies in Childhood (ISAAC) results and 35 children (23.8%) had symptoms of atopic dermatitis with positive SCORAD index values (defined as SCORAD ≥ 5). Children with benzylmercapturic acid detected in personal urines were associated with presence of atopic dermatitis and positive SCORAD index values. Children in the highest quartile of mandelic acid concentration were associated with presence of atopic dermatitis and positive SCORAD results. CONCLUSION Personal exposure to VOCs, as indicated by urinary levels of VOC metabolites, was associated with presence of atopic dermatitis and the SCORAD index value.
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Affiliation(s)
- Eun Kyo Ha
- Department of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - Ju Hee Kim
- Department of Pediatrics, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Dawon Park
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Eun Lee
- Department of Pediatrics, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Won Lee
- Department of Data Science, Sejong University College of Software Convergence, Seoul, Korea
- Department of Precision Medicine, Sungkyunkwan University School of medicine, Suwon, Korea
| | - Hye Mi Jee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Youn Ho Shin
- Department of Pediatrics, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Man Yong Han
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
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Liu Y, Lin T, Cheng C, Wang Q, Lin S, Liu C, Han X. Research Progress on Synthesis and Application of Cyclodextrin Polymers. Molecules 2021; 26:1090. [PMID: 33669556 PMCID: PMC7922926 DOI: 10.3390/molecules26041090] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/21/2022] Open
Abstract
Cyclodextrins (CDs) are a series of cyclic oligosaccharides formed by amylose under the action of CD glucosyltransferase that is produced by Bacillus. After being modified by polymerization, substitution and grafting, high molecular weight cyclodextrin polymers (pCDs) containing multiple CD units can be obtained. pCDs retain the internal hydrophobic-external hydrophilic cavity structure characteristic of CDs, while also possessing the stability of polymer. They are a class of functional polymer materials with strong development potential and have been applied in many fields. This review introduces the research progress of pCDs, including the synthesis of pCDs and their applications in analytical separation science, materials science, and biomedicine.
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Affiliation(s)
| | | | - Cui Cheng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
| | | | | | - Chun Liu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China; (Y.L.); (T.L.); (Q.W.); (S.L.)
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Sisto R, Cavallo D, Ursini CL, Fresegna AM, Ciervo A, Maiello R, Paci E, Pigini D, Gherardi M, Gordiani A, L'Episcopo N, Tranfo G, Capone P, Carbonari D, Balzani B, Chiarella P. Direct and Oxidative DNA Damage in a Group of Painters Exposed to VOCs: Dose - Response Relationship. Front Public Health 2020; 8:445. [PMID: 32974263 PMCID: PMC7469480 DOI: 10.3389/fpubh.2020.00445] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/20/2020] [Indexed: 12/11/2022] Open
Abstract
Volatile organic compounds (VOCs) are present in several working activities. This work is aimed at comparing oxidative stress and DNA damage biomarkers to specific VOCs in the occupational exposure of painters. Dose-response relationships between biomarkers of oxidative stress and of dose were studied. Unmetabolized VOCs and their urinary metabolites were analyzed. Urinary Methylhyppuric acids (MHIPPs, xylenes metabolite), Phenylglyoxylic and Mandelic acid (PGA, MA ethylbenzene metabolites), S-Benzylmercapturic acid (SBMA, toluene metabolite), and S-Phenylmercapturic acid (SPMA, benzene metabolite) were quantified at the end of work-shift. Oxidative stress was determined by: urinary excretion of 8-oxodGuo, 8-oxoGua and 8-oxoGuo and direct/oxidative DNA damage in blood by Fpg-Comet assay. Multivariate linear regression models were used to assess statistical significance of the association between dose and effect biomarkers. The regressions were studied with and without the effect of hOGG1 and XRCC1 gene polymorphisms. Statistically significant associations were found between MHIPPs and both 8-oxoGuo and oxidative DNA damage effect biomarkers measured with the Comet assay. Oxidative DNA damage results significantly associated with airborne xylenes and toluene, whilst 8-oxodGuo was significantly related to urinary xylenes and toluene. Direct DNA damage was significantly associated to SBMA. XRCC1 wild-type gene polymorphism was significantly associated with lower oxidative and total DNA damage with respect to heterozygous and mutant genotypes. The interpretation of the results requires some caution, as the different VOCs are all simultaneously present in the mixture and correlated among them.
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Affiliation(s)
- Renata Sisto
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Delia Cavallo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Cinzia Lucia Ursini
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Anna Maria Fresegna
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Aureliano Ciervo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Raffaele Maiello
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Enrico Paci
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Daniela Pigini
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Monica Gherardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Andrea Gordiani
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Nunziata L'Episcopo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Giovanna Tranfo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Pasquale Capone
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Damiano Carbonari
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
| | - Barbara Balzani
- Department of Prevention, Prevention and Safety at Workplace, ASUR Marche, Ancona, Italy
| | - Pieranna Chiarella
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers' Compensation Authority (INAIL), Rome, Italy
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Shan X, Tan S, Shi Y, Shao J, Su K, Zhang L, Feng H, Ye H. Activated carbon/diatomite-based magnetic nanocomposites for magnetic solid-phase extraction of S-phenylmercapturic acid from human urine. Biomed Chromatogr 2020; 34:e4834. [PMID: 32203622 DOI: 10.1002/bmc.4834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/28/2020] [Accepted: 03/17/2020] [Indexed: 12/14/2022]
Abstract
In this study, activated carbon/diatomite-based magnetic nancomposites (denoted as AC/DBMNs) were synthesized and applied as an adsorbent for magnetic solid-phase extraction of S-phenylmercapturic acid (S-PMA) from human urine prior to high-performance liquid chromatography. The surface morphologies and structures of AC/DBMNs were characterized by Fourier transform infrared spectroscopy, transmission and scanning electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller surface area, vibrating sample magnetometer and ζ-potential measurements. The experimental parameters including sample volume, sample pH, adsorbent amount, extraction time, elution solvent and desorption time were investigated in detail. Under the optimum conditions, the method exhibited good linearity (r > 0.9993) within the concentration ranges of 0.03-1.0 mg/L. Moreover, the limits of detection and quantification were 0.01 and 0.03 mg/L, respectively. The enrichment factor was 5, and good recoveries (88.9-97.3%) with relative standard deviations in the range of 5.6-6.8% (n = 6) for inter-day and 6.3-8.1% (n = 6) for intra-day were achieved. The developed method was successfully applied to the analysis of S-PMA in urine samples. In addition, this accurate and sensitive method has great potential to be applied in the early screening and clinical diagnosis of the workers exposed to benzene.
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Affiliation(s)
- Xiaoyue Shan
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Siwei Tan
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Yanpeng Shi
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Ji Shao
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Kewen Su
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Ling Zhang
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
| | - Hui Feng
- China College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Haipeng Ye
- Hangzhou Occupational Disease Prevention and Control Hospital, Hangzhou, China
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Kuang H, Li Y, Jiang W, Wu P, Tan J, Zhang H, Pang Q, Ma S, An T, Fan R. Simultaneous determination of urinary 31 metabolites of VOCs, 8-hydroxy-2′-deoxyguanosine, and trans-3′-hydroxycotinine by UPLC-MS/MS: 13C- and 15N-labeled isotoped internal standards are more effective on reduction of matrix effect. Anal Bioanal Chem 2019; 411:7841-7855. [DOI: 10.1007/s00216-019-02202-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/24/2019] [Accepted: 10/01/2019] [Indexed: 12/22/2022]
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Non-targeted mercapturic acid screening in urine using LC-MS/MS with matrix effect compensation by postcolumn infusion of internal standard (PCI-IS). Anal Bioanal Chem 2019; 411:7771-7781. [DOI: 10.1007/s00216-019-02166-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/11/2019] [Accepted: 09/23/2019] [Indexed: 11/25/2022]
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Preparation of a new benzylureido-β-cyclodextrin-based column and its application for the determination of phenylmercapturic acid and benzylmercapturic acid enantiomers in human urine by LC/MS/MS. Anal Bioanal Chem 2019; 411:5465-5479. [PMID: 31177331 DOI: 10.1007/s00216-019-01920-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/19/2019] [Accepted: 05/14/2019] [Indexed: 10/26/2022]
Abstract
A benzylureido-β-cyclodextrin was synthesized by the reaction of 6-amino-β-cyclodextrin with an active benzyl isocyanate. Then, it was bonded to silica gel by a thiol-ene addition reaction, obtaining a new benzylureido-β-cyclodextrin-based chiral stationary phase (BzCDP). Its chemical structure was characterized by infrared spectroscopy, elemental analysis, and solid-state nuclear magnetic resonance spectroscopy. The BzCDP was successfully used to separate phenylmercapturic acid (PMA) and benzylmercapturic acid (BMA) enantiomers, which were confirmed as biomarkers of exposure to benzene and toluene in human urine. The enantiomeric separations were also optimized through the investigation of related factors. The resolutions of PMA and BMA enantiomers could be up to 2.25 and 2.14, respectively, within 30 min under reversed-phase chromatography. Based on the optimal chromatographic and mass spectrometry conditions, a new LC-MS/MS quantitative method for the PMA and BMA enantiomers was established by negative ion multiple reaction monitoring (MRM) and an isotope-labeled PMA (d2-PMA) as an internal standard. The limits of detection (LODs) of enantiomers were less than 0.17 μg/L for PMA and 0.14 μg/L for BMA, and the averaged recoveries of enantiomers were in the range of 86~100% for PMA and 86~113% for BMA. The method had good reproducibility levels with the RSDs (3.5~11.3% for intra-day and 3.9~13.1% for inter-day). The method was successfully applied to urine testing of 60 painting and printing workers. The results showed that only L-PMA was detected in the urine of the Printers, while a high content of L-PMA (27.5~106 μg/L) and D-PMA (19.9~82.8 μg/L) can be detected simultaneously in the urine of the Painters, indicating that benzene pollution was more serious in this group. The positive rate of BMA was rather higher, indicating that toluene pollution was more common than benzene. BMA also existed in the form of two enantiomers (L-BMA and D-BMA), but the difference between the two types of occupational groups was small. It is a meaningful work to deeply study the existence and content of chiral markers in human urine, which will help to better understand and evaluate the harmful effects of benzene series on human beings. Graphical abstract.
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Sisto R, Capone P, Cerini L, Sanjust F, Paci E, Pigini D, Gatto MP, Gherardi M, Gordiani A, L'Episcopo N, Tranfo G, Chiarella P. Circulating microRNAs as potential biomarkers of occupational exposure to low dose organic solvents. Toxicol Rep 2019; 6:126-135. [PMID: 30671348 PMCID: PMC6330509 DOI: 10.1016/j.toxrep.2019.01.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 02/07/2023] Open
Abstract
Circulating miRNAs can be used as sensitive biomarkers of low dose exposure to organic solvents at workplace. The miRNA response to organic chemicals elucidates molecular mechanisms occurring after specific occupational exposures. Associations between miRNAs, dose and oxidative stress biomarkers contribute to prevent and promote workers’ health.
Circulating microRNAs (miRNAs) have been recently acknowledged as novel and non-invasive biomarkers of exposure to environmental and occupational hazardous substances. This preliminary study investigates the potential role of blood miRNAs as molecular biomarkers of exposure to the most common organic solvents (ethylbenzene, toluene, xylene) used in the shipyard painting activity. Despite the low number of recruited workers, a two-tail standard Students’ test with Holm-Bonferroni adjusted p-value shows a significant up-regulation of two miRNAs (miR_6819_5p and miR_6778_5p) in exposed workers with respect to controls. A correlation analysis between miRNA, differentially expressed in exposed workers and in controls and urinary dose biomarkers i.e. methylhyppuric acid (xylenes metabolite), phenylglyoxylic and mandelic acid (ethylbenzene metabolites) S-benzyl mercapturic acid (toluene metabolite) and S-phenylmercapturic acid (benzene metabolite) measured at the end of the work-shift, allowed the identification of high correlation (0.80-0.99) of specific miRNAs with their respective urinary metabolites. MiRNA_671_5p correlated with methylhippuric, S-phenylmercapturic and S-benzyl mercapturic acid while the miRNA best correlating with the phenylglioxylic acid was miRNA_937_5p. These findings suggest miRNA as sensitive biomarkers of low dose exposure to organic chemicals used at workplace. Urinary DNA and RNA repair biomarkers coming from the oxidation product of guanine have been also associated to the different miRNAs. A significant negative association was found between 8-oxo-7,8-dihydroguanine (8-oxoGua) urinary concentration and miR_6778_5p. The findings of the present pilot study deserve to be tested on a larger population with the perspective of designing a miRNA based test of low dose exposure to organic solvents.
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Affiliation(s)
- Renata Sisto
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Pasquale Capone
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Luigi Cerini
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Filippo Sanjust
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Enrico Paci
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Daniela Pigini
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Maria Pia Gatto
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Monica Gherardi
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Andrea Gordiani
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Nunziata L'Episcopo
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Giovanna Tranfo
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
| | - Pieranna Chiarella
- INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene Via di Fontana Candida 1, 00078 Monte Porzio Catone, Rome, Italy
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A novel diagnostic in situ derivatization kit for the simultaneous determination of 14 biomarkers of exposure to benzene, toluene, ethyl benzene and xylenes in human urine by isotope dilution liquid chromatography tandem mass spectrometry and kit optimization using response surface methodology. Anal Chim Acta 2018; 1036:195-203. [DOI: 10.1016/j.aca.2018.06.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/28/2018] [Accepted: 06/24/2018] [Indexed: 12/17/2022]
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Lovreglio P, De Palma G, Barbieri A, Andreoli R, Drago I, Greco L, Gallo E, Diomede L, Scaramuzzo P, Ricossa MC, Fostinelli J, Apostoli P, Soleo L. Biological monitoring of exposure to low concentrations of benzene in workers at a metallurgical coke production plant: new insights into S-phenylmercapturic acid and urinary benzene. Biomarkers 2017; 23:70-77. [DOI: 10.1080/1354750x.2017.1387935] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Piero Lovreglio
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Giuseppe De Palma
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health Section of Public Health and Human Sciences, University of Brescia, Brescia, Italy
| | - Anna Barbieri
- Department of Medical and Surgical Science, Section of Public Health and Human Sciences, University of Bologna, Bologna, Italy
| | - Roberta Andreoli
- Department of Medicine and Surgery, Laboratory of Industrial Toxicology, University of Parma, Parma, Italy
| | - Ignazio Drago
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Luciano Greco
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Elisabetta Gallo
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Laura Diomede
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Pietro Scaramuzzo
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
| | - Maria Cristina Ricossa
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health Section of Public Health and Human Sciences, University of Brescia, Brescia, Italy
| | - Jacopo Fostinelli
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health Section of Public Health and Human Sciences, University of Brescia, Brescia, Italy
| | - Pietro Apostoli
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health Section of Public Health and Human Sciences, University of Brescia, Brescia, Italy
| | - Leonardo Soleo
- Interdisciplinary Department of Medicine, Section of Occupational Medicine “E.C. Vigliani”, University of Bari Aldo Moro, Bari, Italy
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Mendes MPR, Silveira JN, Andre LC. An efficient analytical method for determination of S -phenylmercapturic acid in urine by HPLC fluorimetric detector to assessing benzene exposure. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1063:136-140. [DOI: 10.1016/j.jchromb.2017.07.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 07/17/2017] [Accepted: 07/21/2017] [Indexed: 01/19/2023]
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Gonçalves ES, Borges RM, Carvalho LVBD, Alves SR, André LC, Moreira JC. Estratégias analíticas com cromatografia e espectrometria de massas para biomonitorização da exposição ao benzeno pela determinação do ácido S-fenilmercaptúrico urinário. REVISTA BRASILEIRA DE SAÚDE OCUPACIONAL 2017. [DOI: 10.1590/2317-6369000127615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Introdução: o benzeno é uma substância de reconhecida toxicidade e sua biomonitorização torna-se fundamental para a prevenção de danos à saúde humana, principalmente em situações de exposição ocupacional. Dentre os biomarcadores de exposição, o ácido S-fenilmercaptúrico é considerado o único específico, mas, devido a suas baixas concentrações na urina, é requerido o uso de técnicas analíticas sensíveis capazes de quantificar traços. Objetivo: revisar metodologias baseadas na cromatografia e na espectrometria de massas para a determinação do ácido S-fenilmercaptúrico. Método: revisão da literatura sobre a determinação do ácido S-fenilmercaptúrico urinário por técnicas de cromatografia e espectrometria de massas, nas principais bases de dados científicas, considerando o período entre 1951 e 2015. Resultados: 120 documentos serviram como base teórica para a construção desta revisão. A técnica analítica mais empregada foi o acoplamento da cromatografia a líquido com a espectrometria de massas. Contudo, os métodos diferem quanto ao preparo das amostras. Conclusão: o alto custo de aquisição e a manutenção de equipamentos são fatores limitantes para a difusão dos sistemas de cromatografia e espectrometria de massas. No entanto, sua elevada sensibilidade e seletividade faz com que essas técnicas, acopladas, possibilitem elucidar situações de exposição ocupacional e ambiental a poluentes, como o benzeno.
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Lovreglio P, Doria D, Fracasso ME, Barbieri A, Sabatini L, Drago I, Violante FS, Soleo L. DNA damage and repair capacity in workers exposed to low concentrations of benzene. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:151-158. [PMID: 26646167 DOI: 10.1002/em.21990] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 11/12/2015] [Indexed: 06/05/2023]
Abstract
DNA damage and cellular repair capacity were studied in 18 male fuel tanker drivers and 13 male filling-station attendants exposed to low and very low concentrations of benzene, respectively, and compared to 20 males with no occupational exposure (controls). Exposure to airborne benzene was measured using passive personal samplers, and internal doses were assayed through the biomarkers t,t-muconic acid, S-phenylmercapturic acid and urinary benzene. DNA damage was evaluated using tail intensity (TI) determined by the comet assay in peripheral lymphocytes. Urinary 7-hydro-8-oxo-2'-deoxyguanosine (8-oxodG) was measured as a biomarker of oxidative damage. DNA repair kinetics were assessed using the comet assay in lymphocytes sampled 20 and 60 min post H2O2 exposure. Benzene exposure differed significantly between the drivers (median 246.3 µg/m(3)), attendants (median 13.8 µg/m(3)), and controls (median 4.1 µg/m(3)). There were no differences in TI and 8-oxodG among the three groups, or between smokers and non-smokers. DNA repair kinetics were similar among the drivers, attendants and controls, although the comet assay on H2 O2 -damaged lymphocytes after 60 min revealed significantly lower levels of TI only in drivers. The DNA repair process in smokers was similar to that observed in drivers. In conclusion, this study found no relationship between low levels of benzene exposure and DNA damage, although there was evidence that exposure interferes with DNA repair kinetics. The biological impact of this finding on the onset of genotoxic effects in exposed workers has still to be ascertained.
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Affiliation(s)
- Piero Lovreglio
- Interdisciplinary Department of Medicine, Section of Occupational Medicine "E.C. Vigliani," University of Bari, Bari, Italy
| | - Denise Doria
- Department of Public Health and Community Medicine, Section of Pharmacology, University of Verona, Verona, Italy
| | - Maria Enrica Fracasso
- Department of Public Health and Community Medicine, Section of Pharmacology, University of Verona, Verona, Italy
| | - Anna Barbieri
- Department of Medical and Surgical Science, Section of Occupational Medicine, University of Bologna, Bologna, Italy
| | - Laura Sabatini
- Department of Medical and Surgical Science, Section of Occupational Medicine, University of Bologna, Bologna, Italy
| | - Ignazio Drago
- Interdisciplinary Department of Medicine, Section of Occupational Medicine "E.C. Vigliani," University of Bari, Bari, Italy
| | - Francesco S Violante
- Department of Medical and Surgical Science, Section of Occupational Medicine, University of Bologna, Bologna, Italy
| | - Leonardo Soleo
- Interdisciplinary Department of Medicine, Section of Occupational Medicine "E.C. Vigliani," University of Bari, Bari, Italy
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15
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Mathias PI, B'hymer C. Mercapturic acids: recent advances in their determination by liquid chromatography/mass spectrometry and their use in toxicant metabolism studies and in occupational and environmental exposure studies. Biomarkers 2016; 21:293-315. [PMID: 26900903 PMCID: PMC4894522 DOI: 10.3109/1354750x.2016.1141988] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This review describes recent selected HPLC/MS methods for the determination of urinary mercapturates that are useful as noninvasive biomarkers in characterizing human exposure to electrophilic industrial chemicals in occupational and environmental studies. High-performance liquid chromatography/mass spectrometry is a sensitive and specific method for analysis of small molecules found in biological fluids. In this review, recent selected mercapturate quantification methods are summarized and specific cases are presented. The biological formation of mercapturates is introduced and their use as indicators of metabolic processing of reactive toxicants is discussed, as well as future trends and limitations in this area of research.
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Affiliation(s)
- Patricia I Mathias
- a Division of Applied Science and Technology , U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Biomonitoring and Health Assessment Branch, Robert a. Taft Laboratories , Cincinnati , OH , USA
| | - Clayton B'hymer
- a Division of Applied Science and Technology , U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Biomonitoring and Health Assessment Branch, Robert a. Taft Laboratories , Cincinnati , OH , USA
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16
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Development of liquid chromatography methods coupled to mass spectrometry for the analysis of substances with a wide variety of polarity in meconium. Talanta 2015; 138:231-239. [DOI: 10.1016/j.talanta.2015.02.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/24/2015] [Accepted: 02/28/2015] [Indexed: 11/17/2022]
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17
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Chiang WC, Chen CY, Lee TC, Lee HL, Lin YW. Fast and simple screening for the simultaneous analysis of seven metabolites derived from five volatile organic compounds in human urine using on-line solid-phase extraction coupled with liquid chromatography-tandem mass spectrometry. Talanta 2015; 132:469-78. [DOI: 10.1016/j.talanta.2014.09.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 10/24/2022]
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18
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Fan R, Li J, Chen L, Xu Z, He D, Zhou Y, Zhu Y, Wei F, Li J. Biomass fuels and coke plants are important sources of human exposure to polycyclic aromatic hydrocarbons, benzene and toluene. ENVIRONMENTAL RESEARCH 2014; 135:1-8. [PMID: 25261857 DOI: 10.1016/j.envres.2014.08.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 08/09/2014] [Accepted: 08/13/2014] [Indexed: 05/13/2023]
Abstract
Large amounts of carcinogenic polycyclic aromatic hydrocarbons (PAHs), benzene and toluene (BT) might be emitted from incomplete combustion reactions in both coal tar factories and biomass fuels in rural China. The health effects arising from exposure to PAHs and BT are a concern for residents of rural areas close to coal tar plants. To assess the environmental risk and major exposure sources, 100 coke plant workers and 25 farmers in Qujing, China were recruited. The levels of 10 mono-hydroxylated PAHs (OH-PAHs), four BT metabolites and 8-hydroxy-2'-deoxyguanosine (8-OHdG) in the urine collected from the subjects were measured. The 8-OHdG levels in the urine were determined to evaluate the oxidative DNA damage induced by the PAHs and BT. The results showed that the levels of the OH-PAHs, particularly those of 1-hydroxynathalene and 1-hydroxypyrene, in the farmers were 1-7 times higher than those in the workers. The concentrations of the BT metabolites were comparable between the workers and farmers. Although the exact work location within a coke oven plant might affect the levels of the OH-PAHs, one-way ANOVA revealed no significant differences for either the OH-PAHs levels or the BT concentrations among the three groups working at different work sites. The geometric mean concentration (9.17 µg/g creatinine) of 8-OHdG was significantly higher in the farmers than in the plant workers (6.27 µg/g creatinine). The levels of 8-OHdG did not correlate with the total concentrations of OH-PAHs and the total levels of BT metabolites. Incompletely combusted biomass fuels might be the major exposure source, contributing more PAHs and BT to the local residents of Qujing. The estimated daily intakes (EDIs) of naphthalene and fluorene for all of the workers and most of the farmers were below the reference doses (RfDs) recommended by the U.S. Environmental Protection Agency (EPA), except for the pyrene levels in two farmers. However, the EDIs of benzene in the workers and local farmers ranged from 590 to 7239 µg/day, and these levels were 2- to 30-fold higher than the RfDs recommended by the EPA. Biomass fuel combustion and industrial activities related to coal tar were the major sources of the PAH and BT exposure in the local residents. Using biomass fuels for household cooking and heating explains the higher exposure levels observed in the farmers relative to the workers at the nearby coal tar-related industrial facility.
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Affiliation(s)
- Ruifang Fan
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Junnan Li
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Laiguo Chen
- Urban Environment and Ecology Research Center, South China Institute of Environmental Sciences (SCIES), Ministry of Environmental Protection, Guangzhou 510655, China.
| | - Zhencheng Xu
- Urban Environment and Ecology Research Center, South China Institute of Environmental Sciences (SCIES), Ministry of Environmental Protection, Guangzhou 510655, China.
| | - Dechun He
- Urban Environment and Ecology Research Center, South China Institute of Environmental Sciences (SCIES), Ministry of Environmental Protection, Guangzhou 510655, China
| | - Yuanxiu Zhou
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou 510631, China
| | - Yuanyuan Zhu
- China National Environmental Monitoring Center, Beijing 100012, China
| | - Fusheng Wei
- China National Environmental Monitoring Center, Beijing 100012, China
| | - Jihua Li
- Qujing Center for Disease Control and Prevention, Yunan 655099, China
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19
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Lovreglio P, Maffei F, Carrieri M, D’Errico MN, Drago I, Hrelia P, Bartolucci GB, Soleo L. Evaluation of chromosome aberration and micronucleus frequencies in blood lymphocytes of workers exposed to low concentrations of benzene. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2014; 770:55-60. [DOI: 10.1016/j.mrgentox.2014.04.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/05/2014] [Accepted: 04/28/2014] [Indexed: 01/18/2023]
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20
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Mathias PI, B'Hymer C. A survey of liquid chromatographic-mass spectrometric analysis of mercapturic acid biomarkers in occupational and environmental exposure monitoring. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 964:136-45. [PMID: 24746702 PMCID: PMC4530631 DOI: 10.1016/j.jchromb.2014.02.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 01/27/2014] [Accepted: 02/15/2014] [Indexed: 11/20/2022]
Abstract
High-performance liquid chromatography/mass spectrometry (HPLC/MS) is sensitive and specific for targeted quantitative analysis and is readily utilized for small molecules from biological matrices. This brief review describes recent selected HPLC/MS methods for the determination of urinary mercapturic acids (mercapturates) which are useful as biomarkers in characterizing human exposure to electrophilic industrial chemicals in occupational and environmental studies. Electrophilic compounds owing to their reactivity are used in chemical and industrial processes. They are present in industrial emissions, are combustion products of fossil fuels, and are components in tobacco smoke. Their presence in both the industrial and general environments are of concern for human and environmental health. Urinary mercapturates which are the products of metabolic detoxification of reactive chemicals provide a non-invasive tool to investigate human exposure to electrophilic toxicants. Selected recent mercapturate quantification methods are summarized and specific cases are presented. The biological formation of mercapturates is introduced and their use as biomarkers of metabolic processing of electrophilic compounds is discussed. Also, the use of liquid chromatography/tandem mass spectrometry in simultaneous determinations of the mercapturates of multiple parent compounds in a single determination is considered, as well as future trends and limitations in this area of research.
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Affiliation(s)
- Patricia I Mathias
- U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Applied Science and Technology, Biomonitoring and Health Assessment Branch, Robert A. Taft Laboratories, 4676 Columbia Parkway, Cincinnati, OH 45226, United States.
| | - Clayton B'Hymer
- U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Applied Science and Technology, Biomonitoring and Health Assessment Branch, Robert A. Taft Laboratories, 4676 Columbia Parkway, Cincinnati, OH 45226, United States
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21
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T Rajan S, Malathi N. Health hazards of xylene: a literature review. J Clin Diagn Res 2014; 8:271-4. [PMID: 24701554 DOI: 10.7860/jcdr/2014/7544.4079] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/09/2013] [Indexed: 11/24/2022]
Abstract
Xylene, an aromatic hydrocarbon is widely used in industry and medical laboratory as a solvent. It is a flammable liquid that requires utmost care during its usage. On exposure the vapours are rapidly absorbed through the lungs and the slowly through the skin. Prolonged exposure to xylene leads to significant amount of solvent accumulation in the adipose and muscle tissue. This article reviews the various acute and chronic health effects of xylene through various routes of exposure.
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Affiliation(s)
- Sharada T Rajan
- Senior lecturer, Department of Oral Pathology, Faculty of Dental Sciences, Sri Ramachandra University , Chennai, India
| | - N Malathi
- Professor and Head, Department of Oral Pathology, Faculty of Dental Sciences, Sri Ramachandra University , Chennai, India
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22
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Campagna M, Satta G, Campo L, Flore V, Ibba A, Meloni M, Tocco MG, Avataneo G, Flore C, Fustinoni S, Cocco P. Analysis of potential influence factors on background urinary benzene concentration among a non-smoking, non-occupationally exposed general population sample. Int Arch Occup Environ Health 2013; 87:793-9. [DOI: 10.1007/s00420-013-0925-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 12/18/2013] [Indexed: 11/28/2022]
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23
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S-phenylmercapturic acid (S-PMA) levels in urine as an indicator of exposure to benzene in the Kinshasa population. Int J Hyg Environ Health 2013; 216:494-8. [DOI: 10.1016/j.ijheh.2013.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 02/20/2013] [Accepted: 03/25/2013] [Indexed: 11/20/2022]
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24
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Donor substrate specificity of bovine kidney gamma-glutamyltransferase. Chem Biol Interact 2013; 203:480-5. [DOI: 10.1016/j.cbi.2013.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/18/2013] [Accepted: 02/26/2013] [Indexed: 11/20/2022]
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25
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Cosnier F, Brochard C, Burgart M, Cossec B. Mercapturic acids derived from toluene in rat urine samples: identification and measurement by gas chromatography-tandem mass spectrometry. Anal Bioanal Chem 2012; 404:1907-17. [PMID: 22829455 DOI: 10.1007/s00216-012-6262-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 06/29/2012] [Accepted: 07/10/2012] [Indexed: 11/28/2022]
Abstract
Toluene is one of the most widely used CMR chemicals in industry. Worker exposure to this compound is regulated in France, but new, more sensitive methods are required to effectively monitor this exposure. A gas chromatography-tandem mass spectrometry (GC-MS/MS) method was developed and fully validated for the simultaneous determination of urinary toluene mercapturic acids derived from side chain and ring oxidation, i.e., benzylmercapturic acid and the three isomers o-, m- and p-toluylmercapturic acids, respectively. The method involves a simple and efficient two-step preparation procedure consisting of liquid-liquid extraction of the urinary acids followed by a microwave-assisted esterification of the isolated compounds using 2-propanol. The method meets all the required validation criteria: high selectivity, intra-day and inter-day precision ranges between 1.0 % and 12.4 %, with close to 100 % recovery. Linearity has been shown over the reduced concentration range 0.03-0.5 mg/L whereas a multiplicative model (ln-ln transformation) had to be used to describe the full range of concentrations 0.03-20 mg/L. The limits of detection for the four analytes, ranging from 2.8 to 5.5 μg/L, made the method suitable for their identification and quantification in urine from rats inhaling toluene in the 2 to 200 ppm concentration range. All urine samples from exposed rats contained measurable amounts of all metabolites. This is the first time that o- and m-toluylmercapturic acids have been shown to occur. Our results confirm the hypothesis that toluene mercapturic acids derived from ring oxidation exist in three forms.
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Affiliation(s)
- Frédéric Cosnier
- Institut National de Recherche et de Sécurité (INRS), Vandoeuvre, France.
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26
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Poon JCH, Josephy PD. Hydrolysis of S-aryl-cysteinylglycine conjugates catalyzed by porcine kidney cortex membrane dipeptidase. Xenobiotica 2012; 42:1178-86. [DOI: 10.3109/00498254.2012.700427] [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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27
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Vlastos D, Ntinopoulos A. Induction of micronuclei on Greek hairdressers occupationally exposed to chemical mixtures. ENVIRONMENTAL TOXICOLOGY 2011; 26:506-514. [PMID: 20549610 DOI: 10.1002/tox.20579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Revised: 02/01/2010] [Accepted: 02/04/2010] [Indexed: 05/29/2023]
Abstract
Since the early 20th century, hairdressers (HD) have been exposed to a wide range of harmful chemical products. To determine the possible genetic damage to HD, as a result of their occupational exposure to combinations of different chemical factors, we applied the micronucleus assay on their peripheral blood lymphocytes cultures. The micronucleus assay was performed on blood samples from 20 Greek female HD and 20 control women, having no connection with the occupation, from the same area. In the results analysis, parameters included were age, smoking habits, and duration of occupational exposure. The results of our study showed a significant increase in HD micronuclei (MN) frequency, compared to the controls (13.4 ± 1.00 vs. 8.05 ± 0.65). The frequency of large-size MN was significantly higher in the HD and presented potential correlation with the phenomenon of aneuploidy. A statistically significant difference in the frequency of MN between HD and controls who smoked was observed, while this was not the case with the non smoker groups. However, multiple regression analysis showed no significant correlation between smoking habits and MN frequency. The observed increase of the frequency of MN in HD is attributed to the long-term occupational exposure of HD in combination with different chemical factors. Since in the literature there are very few similar studies, further combined studies are suggested on a larger number of HD from different countries, combining biological and molecular techniques, as well as chemical analytical methods of determining and tracing the chemical factors in both the occupational environment and their organisms.
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Affiliation(s)
- Dimitris Vlastos
- Department of Environmental and Natural Resources Management, University of Ioannina, Agrinio, Greece.
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28
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Lovreglio P, D'Errico MN, Fustinoni S, Drago I, Barbieri A, Sabatini L, Carrieri M, Apostoli P, Soleo L. Biomarkers of internal dose for the assessment of environmental exposure to benzene. ACTA ACUST UNITED AC 2011; 13:2921-8. [DOI: 10.1039/c1em10512d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Cossec B, Cosnier F, Burgart M, Nunge H, Grossmann S. Glutathione pathway in ethylbenzene metabolism: novel biomarkers of exposure in the rat. CHEMOSPHERE 2010; 81:1334-1341. [PMID: 20825968 DOI: 10.1016/j.chemosphere.2010.08.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 07/22/2010] [Accepted: 08/11/2010] [Indexed: 05/29/2023]
Abstract
Glutathione pathway was specifically studied in rats exposed by inhalation to a range of ethylbenzene vapours (5-2000 ppm). Urines were collected during exposure (6h) and over the 18 h following the exposure. The potential metabolites coming from either side-chain or ring oxidation were synthesized: 1-, 2-phenylethylmercapturic acids (1-, and 2-PEMA) and 2-, 3- and 4-ethylphenylmercapturic acids (2-, 3-, and 4-EPMA). Their synthesis was fully described and the molecules characterized. Urine samples were analysed using a selective HPLC-fluorescence method. Among the five metabolites, 2-PEMA was never observed in any urine sample. By contrast, 1-PEMA was discovered in its two diastereomeric forms, and it was shown that one of them was mainly present. 2-EPMA, 3-EPMA and 4-EPMA (in the ratio 1:2:6) were also found, and their combined excretion levels were similar to that of 1-PEMA. The atmospheric concentrations and urinary excretions yielded very close correlations which allow us to consider these mercapturic acids as novel ethylbenzene exposure biomarkers.
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Affiliation(s)
- Benoît Cossec
- Institut National de Recherche et de Sécurité (INRS), Rue du Morvan CS 60027, Vandoeuvre, 54519 Cedex, France.
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30
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Weisel CP. Benzene exposure: an overview of monitoring methods and their findings. Chem Biol Interact 2010; 184:58-66. [PMID: 20056112 DOI: 10.1016/j.cbi.2009.12.030] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Revised: 12/17/2009] [Accepted: 12/22/2009] [Indexed: 10/20/2022]
Abstract
Benzene has been measured throughout the environment and is commonly emitted in several industrial and transportation settings leading to widespread environmental and occupational exposures. Inhalation is the most common exposure route but benzene rapidly penetrates the skin and can contaminant water and food resulting in dermal and ingestion exposures. While less toxic solvents have been substituted for benzene, it still is a component of petroleum products, including gasoline, and is a trace impurity in industrial products resulting in continued sub to low ppm occupational exposures, though higher exposures exist in small, uncontrolled workshops in developing countries. Emissions from gasoline/petrochemical industry are its main sources to the ambient air, but a person's total inhalation exposure can be elevated from emissions from cigarettes, consumer products and gasoline powered engines/tools stored in garages attached to homes. Air samples are collected in canisters or on adsorbent with subsequent quantification by gas chromatography. Ambient air concentrations vary from sub-ppb range, low ppb, and tens of ppb in rural/suburban, urban, and source impacted areas, respectively. Short-term environmental exposures of ppm occur during vehicle fueling. Indoor air concentrations of tens of ppb occur in microenvironments containing indoor sources. Occupational and environmental exposures have declined where regulations limit benzene in gasoline (<1%) and cigarette smoking has been banned from public and work places. Similar controls should be implemented worldwide to reduce benzene exposure. Biomarkers of benzene used to estimate exposure and risk include: benzene in breath, blood and urine; its urinary metabolites: phenol, t,t-muconic acid (t,tMA) and S-phenylmercapturic acid (sPMA); and blood protein adducts. The biomarker studies suggest benzene environmental exposures are in the sub to low ppb range though non-benzene sources for urinary metabolites, differences in metabolic rates compared to occupational or animal doses, and the presence of polymorphisms need to be considered when evaluating risks from environmental exposures to individuals or potentially susceptible populations.
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Affiliation(s)
- Clifford P Weisel
- Environmental and Occupational Health Sciences Institute, EOHSI, RWJMS/UMDNJ, 170 Frelinghuysen Road, Piscataway, NJ 08854, United States.
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31
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Validity of new biomarkers of internal dose for use in the biological monitoring of occupational and environmental exposure to low concentrations of benzene and toluene. Int Arch Occup Environ Health 2009; 83:341-56. [PMID: 19830448 DOI: 10.1007/s00420-009-0469-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Accepted: 09/24/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVES This study analyzes the validity of new, more sensitive and specific urinary biomarkers of internal dose, namely, urinary benzene for benzene and urinary toluene and S-benzylmercapturic acid (SBMA) for toluene, to assess their efficacy when compared to traditional biomarkers for biological monitoring of occupational exposure to low concentrations of these two toxic substances. METHODS Assessment was made of 41 workers occupationally exposed to benzene and toluene, 18 fuel tanker drivers and 23 filling-station attendants, as well as 31 subjects with no occupational exposure to these toxic substances (controls). Exposure to airborne benzene and toluene was measured using passive Radiello personal samplers worn throughout the work shift. In urine samples collected from all subjects at the end of the workday, both the traditional and the new internal dose biomarkers of benzene and toluene were assessed, as well as creatinine so as to apply suitable adjustments. RESULTS Occupational exposure to benzene and toluene resulted significantly higher in the fuel tanker drivers than the filling-station attendants, and higher in the latter than in controls. Significantly higher concentrations of t,t-muconic acid (t,t-MA), S-phenylmercapturic acid (SPMA), urinary benzene, SBMA and urinary toluene were found in the drivers than the filling-station attendants or the controls. Instead, urinary phenol and hippuric acid were not different in the three groups. In the entire sample, airborne benzene and toluene values were significantly correlated, as were the respective urinary biomarkers, showing coefficients ranging from 0.36 to 0.98. Subdividing the subjects by smoking habit, higher coefficients were evident in non-smokers than in smokers; at multiple regression analysis t,t-MA, SPMA and urinary benzene and toluene were dependent on the number of cigarettes smoked daily and on airborne benzene and toluene, respectively. Instead, SBMA was dependent only on airborne toluene. CONCLUSIONS Our research confirmed the validity of t,t-MA and SPMA for use in the biological monitoring of exposure to low concentrations of benzene. Urinary benzene showed comparable validity to SPMA; both parameters are affected by smoking cigarettes in the hours before urine collection, so it is best to ask subjects to refrain from smoking for 2 h before urine collection. Urinary toluene was found to be a more specific biomarker than SBMA.
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Carmella SG, Chen M, Han S, Briggs A, Jensen J, Hatsukami DK, Hecht SS. Effects of smoking cessation on eight urinary tobacco carcinogen and toxicant biomarkers. Chem Res Toxicol 2009; 22:734-41. [PMID: 19317515 PMCID: PMC2704054 DOI: 10.1021/tx800479s] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We determined the persistence at various times (3, 7, 14, 21, 28, 42, and 56 days) of eight tobacco smoke carcinogen and toxicant biomarkers in the urine of 17 smokers who stopped smoking. The biomarkers were 1-hydroxy-2-(N-acetylcysteinyl)-3-butene (1) and 1-(N-acetylcysteinyl)-2-hydroxy-3-butene (2) [collectively called MHBMA for monohydroxybutyl mercapturic acid] and 1,2-dihydroxy-4-(N-acetylcysteinyl)butane (3) [DHBMA for dihydroxybutyl mercapturic acid], metabolites of 1,3-butadiene; 1-(N-acetylcysteinyl)-propan-3-ol (4, HPMA for 3-hydroxypropyl mercapturic acid), a metabolite of acrolein; 2-(N-acetylcysteinyl)butan-4-ol (5, HBMA for 4-hydroxybut-2-yl mercapturic acid), a metabolite of crotonaldehyde; (N-acetylcysteinyl)benzene (6, SPMA for S-phenyl mercapturic acid), a metabolite of benzene; (N-acetylcysteinyl)ethanol (7, HEMA for 2-hydroxyethyl mercapturic acid), a metabolite of ethylene oxide; 1-hydroxypyrene (8) and its glucuronides (1-HOP), metabolites of pyrene; and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (9) and its glucuronides (total NNAL), a biomarker of exposure to 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). These biomarkers represent some of the major carcinogens and toxicants in cigarette smoke: 1,3-butadiene, acrolein, crotonaldehyde, benzene, ethylene oxide, polycyclic aromatic hydrocarbons (PAH), and NNK. With the exception of DHBMA, levels of which did not change after cessation of smoking, all other biomarkers decreased significantly after 3 days of cessation (P < 0.001). The decreases in MHBMA, HPMA, HBMA, SPMA, and HEMA were rapid, nearly reaching their ultimate levels (81-91% reduction) after 3 days. The decrease in total NNAL was gradual, reaching 92% after 42 days, while reduction in 1-HOP was variable among subjects to about 50% of baseline. Since DHBMA did not change upon smoking cessation, there appear to be sources of this metabolite other than 1,3-butadiene. The results of this study demonstrate that the tobacco smoke carcinogen/toxicant biomarkers MHBMA, HPMA, HBMA, SPMA, HEMA, 1-HOP, and NNAL are related to smoking and are good indicators of the impact of smoking on human exposure to 1,3-butadiene, acrolein, crotonaldehyde, benzene, ethylene oxide, PAH, and NNK.
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Affiliation(s)
- Steven G. Carmella
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Menglan Chen
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Shaomei Han
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Anna Briggs
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Joni Jensen
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Dorothy K. Hatsukami
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
| | - Stephen S. Hecht
- Masonic Cancer Center and Transdisciplinary Tobacco Use Research Center, University of Minnesota, Minneapolis, MN 55455
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Current Awareness in Drug Testing and Analysis. Drug Test Anal 2009. [DOI: 10.1002/dta.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Barbieri A, Violante FS, Sabatini L, Graziosi F, Mattioli S. Urinary biomarkers and low-level environmental benzene concentration: assessing occupational and general exposure. CHEMOSPHERE 2008; 74:64-69. [PMID: 18922558 DOI: 10.1016/j.chemosphere.2008.09.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 08/04/2008] [Accepted: 09/04/2008] [Indexed: 05/26/2023]
Abstract
The categories of urban workers undergoing prolonged exposure to gasoline due to vehicle emissions, evaporation and traffic fumes are considered occupationally exposed to benzene, even if at low concentrations. The aim of this study was to evaluate the specificity of unmetabolized benzene excreted in urine (UBz) and S-phenylmercapturic acid (SPMA) as biomarkers of exposure to very low levels of benzene, and to study the impact of putative individual confounders like smoking and alcohol habits, co-exposure to other toxicants and body mass index on the exposure assessment. Environmental and biological monitoring of exposure to benzene were performed in 114 Urban Policemen. The mean value of UBz in non-smokers was significantly lower than in either groups of light to moderate smokers and heavy smokers (0.24, 1.82 and 2.82 microg L(-1), respectively). On the contrary, SPMA values did not discriminate exposure resulting from smoking habits. Moreover, the concentration of UBz in non-smokers appears to be correlated with environmental benzene concentration (BenzA) (R(2)=0.13, beta=0.37, p=0.002). On the other hand, no significant correlation was found between SPMA concentration (corrected for creatinine excretion and log transformed, LogSPMA) and LogBenzA (R(2)=0.003, beta=0.05, p=0.6). Our findings reinforce previous research on the use of unmetabolized urinary benzene as a specific and sensitive biomarker of low-level exposure to benzene and confirm that smoking habits strongly influence the excretion of UBz.
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Affiliation(s)
- Anna Barbieri
- Unit of Occupational Medicine, Sant'Orsola Malpighi Hospital, University of Bologna, Bologna, Italy.
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