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Kubincová P, Sychrová E, Raška J, Basu A, Yawer A, Dydowiczová A, Babica P, Sovadinová I. Polycyclic Aromatic Hydrocarbons and Endocrine Disruption: Role of Testicular Gap Junctional Intercellular Communication and Connexins. Toxicol Sci 2019; 169:70-83. [DOI: 10.1093/toxsci/kfz023] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Abstract
Ambient air pollution and smoking are well-documented risk factors for male infertility. Prevalent air pollutants and cigarette smoke components, polycyclic aromatic hydrocarbons (PAHs), are environmental and occupational toxicants that act as chemicals disrupting endocrine regulation and reproductive potential in males. Testicular gap junctional intercellular communication (GJIC) is critical for normal development and function of testicular tissue, thus we assessed GJIC as a process potentially targeted by PAHs in testes. Lower MW PAHs with a bay or bay-like region rapidly dysregulated GJIC in Leydig TM3 cells by relocalization of major testicular gap junctional protein connexin 43 (Cx43) from plasma membrane to cytoplasm. This was associated with colocalization between Cx43 and ubiquitin in intracellular compartments, but without any effect on Cx43 degradation rate or steady-state Cx43 mRNA levels. A longer exposure to active PAHs decreased steady-state levels of full-length Cx43 protein and its 2 N-truncated isoforms. Inhibition of GJIC by PAHs, similarly to a prototypic GJIC-inhibitor TPA, was mediated via the MAP kinase-Erk1/2 and PKC pathways. Polycyclic aromatic hydrocarbon-induced GJIC dysregulation in testes was cell-type-specific because neither PAH dysregulated GJIC in Sertoli TM4 cells, despite PAHs were rapidly taken up by both Leydig TM3 as well as Sertoli TM4 cells. Because TPA effectively dysregulated GJIC in both testicular cell types, a unique regulator of GJIC targeted by PAHs might exist in Leydig TM3 cells. Our results indicate that PAHs could be a potential etiological agent contributing to reproductive dysfunctions in males through an impairment of testicular GJIC and junctional and/or nonjunctional functions of Cx43.
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Affiliation(s)
- Petra Kubincová
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Eliška Sychrová
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Jan Raška
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Amrita Basu
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Affiefa Yawer
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Aneta Dydowiczová
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Pavel Babica
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
| | - Iva Sovadinová
- Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
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152
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Hendryx M, Luo J. Latent class analysis of the association between polycyclic aromatic hydrocarbon exposures and body mass index. ENVIRONMENT INTERNATIONAL 2018; 121:227-231. [PMID: 30218960 DOI: 10.1016/j.envint.2018.09.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/14/2018] [Accepted: 09/07/2018] [Indexed: 05/22/2023]
Abstract
BACKGROUND People experience multiple co-occurring exposures to environmental pollutants, but analyses of multiple exposures have rarely been reported. OBJECTIVES We used latent class analysis to estimate co-exposures to multiple polycyclic aromatic hydrocarbons (PAH), and tested the associations of latent classes to body mass index. METHODS We analyzed National Health and Nutrition Examination Survey (NHANES) 2013-2014 data. The sample included 2354 people aged 6-80 years. Measures included seven urinary PAH metabolites, BMI, and demographic and behavioral covariates. People were classified into mutually exclusive latent classes characterized by unique profiles of multiple PAH exposures. These classes were used as categorical independent variables in weighted multiple regression models with BMI as the dependent measure. Models were analyzed overall and by age groups (6-19, 20-59, and 60 and over.) We compared results using latent classes to results using a summed PAH exposure measure. RESULTS Five latent classes were identified. Two of these classes were significantly associated with higher BMI overall (p < .0001) and for the two youngest age groups. One of these classes was characterized by high multiple exposures across all PAHs, and one by moderate exposures but relatively high naphthalene and phenanthrene. The summed PAH score was associated with higher BMI only for the youngest age group. CONCLUSIONS Persons experience multiple co-exposures to PAHs that are related to BMI and obesity across age groups. Latent class analysis provides information on higher order interactions among multiple chemicals that a summed score does not. Future work may apply this approach to other outcomes or types of co-exposures.
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Affiliation(s)
- Michael Hendryx
- Department of Environmental and Occupational Health, School of Public Health, 1025 E. 7th St., Indiana University Bloomington, Bloomington, IN 47405, United States of America.
| | - Juhua Luo
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University Bloomington, United States of America
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153
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Huang Y, Guo J, Lv N, Li S, Wu Y, Bai R, Shen J, Chen G, Zhang D. Associations of urinary polycyclic aromatic hydrocarbons with age at natural menopause in U.S. women aged 35-65, NHANES 2003-2012. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:1878-1886. [PMID: 30408876 DOI: 10.1016/j.envpol.2018.09.109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/04/2018] [Accepted: 09/21/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) mediated ovarian toxicity has been demonstrated in animal experiments. However, this issue has not been assessed in humans. Based on the National Health and Nutrition Examination Survey (NHANES) 2003-2012, data analysis was restricted to 1221 general U.S. women aged 35-65 years with complete data of interest. Levels of nine PAH metabolites in spot urine specimens were measured by isotope dilution gas chromatography/tandem mass spectrometry (GC-MS/MS). Self-reported information on the menopause status and age at menopause were obtained during interview. Cox proportional hazards regression was employed to assess the associations between PAH levels and natural menopause. Compared with women in the first quartile, subjects in the highest quartile of 1-Hydroxynapthalene [hazard ratio (HR) = 1.46, 95% confidence interval (CI) = 1.06 to 2.01], 2-Hydroxynapthalene (HR = 1.51, 95% CI = 1.12 to 2.05) and 3-Hydroxyfluorene (HR = 1.51, 95% CI = 1.06 to 2.16), or in the second quartile of 9-Hydroxyfluorene (HR = 1.53, 95% CI = 1.05 to 2.22), had elevated risks of earlier onset of natural menopause. Our findings suggested positive associations between urinary PAH levels and earlier age at natural menopause in the general U.S. women. Prospective studies are warranted to confirm the causality in the future.
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Affiliation(s)
- Yun Huang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Guo
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Na Lv
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuai Li
- Department of Clinical Laboratory, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiqing Wu
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Rongpan Bai
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Shen
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Guangdi Chen
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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154
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Tiffon C. The Impact of Nutrition and Environmental Epigenetics on Human Health and Disease. Int J Mol Sci 2018; 19:E3425. [PMID: 30388784 PMCID: PMC6275017 DOI: 10.3390/ijms19113425] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 10/19/2018] [Accepted: 10/29/2018] [Indexed: 12/22/2022] Open
Abstract
Environmental epigenetics describes how environmental factors affect cellular epigenetics and, hence, human health. Epigenetic marks alter the spatial conformation of chromatin to regulate gene expression. Environmental factors with epigenetic effects include behaviors, nutrition, and chemicals and industrial pollutants. Epigenetic mechanisms are also implicated during development in utero and at the cellular level, so environmental exposures may harm the fetus by impairing the epigenome of the developing organism to modify disease risk later in life. By contrast, bioactive food components may trigger protective epigenetic modifications throughout life, with early life nutrition being particularly important. Beyond their genetics, the overall health status of an individual may be regarded as an integration of many environmental signals starting at gestation and acting through epigenetic modifications. This review explores how the environment affects the epigenome in health and disease, with a particular focus on cancer. Understanding the molecular effects of behavior, nutrients, and pollutants might be relevant for developing preventative strategies and personalized heath programs. Furthermore, by restoring cellular differentiation, epigenetic drugs could represent a potential strategy for the treatment of many diseases including cancer.
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Affiliation(s)
- Céline Tiffon
- French National Cancer Institute, 92100 Boulogne-Billancourt, France.
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155
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Drwal E, Rak A, Gregoraszczuk EL. Review: Polycyclic aromatic hydrocarbons (PAHs)-Action on placental function and health risks in future life of newborns. Toxicology 2018; 411:133-142. [PMID: 30321648 DOI: 10.1016/j.tox.2018.10.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 09/18/2018] [Accepted: 10/11/2018] [Indexed: 01/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants, which are released as products of incomplete combustion processes. Harmful effects of PAHs exposure on human health are observed in increased morbidity of respiratory, cardiovascular and immunological diseases. A particularly sensitive group to PAHs exposure are pregnant women and their developing offspring. PAHs can cross the placental barrier and a lot of published data indicated that prenatal or early postnatal exposure to PAHs can lead to developmental toxicity. Epidemiological data shows increased incidence and prevalence of conditions associated with PAHs exposure, like intrauterine growth retardation. Even more, negative effect of PAHs are observed later in development, low IQ, problems with behavior, allergies or asthma. This review will briefly summarize currently available data on the effects of PAHs on placental function with a specific emphasis on placental differentiation, angiogenesis, hormone signaling and consequences of exposure to PAHs in childhood and adulthood.
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Affiliation(s)
- Eliza Drwal
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Agnieszka Rak
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland
| | - Ewa L Gregoraszczuk
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Krakow, Poland.
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156
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Haraux E, Tourneux P, Kouakam C, Stephan-Blanchard E, Boudailliez B, Leke A, Klein C, Chardon K. Isolated hypospadias: The impact of prenatal exposure to pesticides, as determined by meconium analysis. ENVIRONMENT INTERNATIONAL 2018; 119:20-25. [PMID: 29929047 DOI: 10.1016/j.envint.2018.06.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Although endocrine-disrupting chemicals (EDCs, including pesticides) are thought to increase the risk of hypospadias, no compounds have been formally identified in this context. Human studies may now be possible via the assessment of meconium as a marker of chronic prenatal exposure. The objective of the present study was to determine whether or not prenatal exposure to pesticides (as detected in meconium) constitutes a risk factor for isolated hypospadias. In a case-control study performed between 2011 and 2014 in northern France, male newborns with isolated hypospadias (n = 25) were matched at birth with controls (n = 58). Newborns with obvious genetic or hormonal anomalies, undescended testis, micropenis, a congenital syndrome or a family history of hypospadias were not included. Neonatal and parental data were collected. Foetal exposure was assessed by determining the meconium concentrations of the pesticides or metabolites (organophosphates, carbamates, phenylurea, and phenoxyherbicides) most commonly used in the region. Risk factors were assessed in a multivariate analysis. The pesticides most commonly detected in meconium were organophosphates (in up to 98.6% of samples, depending on the substance) and phenylurea (>85.5%). A multivariate analysis revealed an association between isolated hypospadias and the presence in meconium of the phenylurea herbicide isoproturon and of the phenoxyherbicide 2-methyl-4-chlorophenoxyacetic acid (odds ratio [95% confidence interval]: 5.94 [1.03-34.11] and 4.75 [1.20-18.76]) respectively). We conclude that prenatal exposure to these two herbicides (as assessed by meconium analysis) was correlated with the occurrence of isolated hypospadias. The results of our case-control study (i) suggest that prenatal exposure to pesticides interferes with the development of the male genitalia, and (ii) emphasize the importance of preventing pregnant women from being exposed to EDCs in general and pesticides in particular.
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Affiliation(s)
- Elodie Haraux
- Paediatric Surgery Unit, Amiens University Hospital, F-80054 Amiens, France; PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France.
| | - Pierre Tourneux
- PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France; Paediatric Intensive Care Unit, Amiens University Hospital, F-80054 Amiens, France.
| | - Christelle Kouakam
- PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France
| | - Erwan Stephan-Blanchard
- PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France.
| | - Bernard Boudailliez
- Department of Paediatrics, Amiens University Hospital, F-80054 Amiens, France.
| | - Andre Leke
- PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France; Neonatal Intensive Care Unit, Amiens University Hospital, F-80054 Amiens, France.
| | - Celine Klein
- Paediatric Surgery Unit, Amiens University Hospital, F-80054 Amiens, France.
| | - Karen Chardon
- PeriTox - UMI 01, UFR de Médecine, Jules Verne University of Picardy, F-80054 Amiens, France.
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157
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Bianchini K, Morrissey CA. Polycyclic aromatic hydrocarbon exposure impairs pre-migratory fuelling in captively-dosed Sanderling (Calidris alba). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:383-391. [PMID: 29902618 DOI: 10.1016/j.ecoenv.2018.05.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 05/11/2018] [Accepted: 05/14/2018] [Indexed: 06/08/2023]
Abstract
Efficient fuelling is essential for migratory birds because fuel loads and fuelling rates affect individual fitness and survival during migration. Many migrant shorebirds are exposed to oil pollution and its toxic constituents, polycyclic aromatic hydrocarbons (PAHs), at migratory staging sites, which has the potential to interfere with avian refuelling physiology. In this study, we orally dosed shorebirds with environmentally-relevant PAH mixtures to simulate dietary exposure during staging. Forty-nine wild-caught Sanderling (Calidris alba) were exposed to 0 (control), 12.6 (low), 126 (medium), or 1260 (high) μg total PAH/kg body weight/day. Birds were dosed during a 21-day period of autumn pre-migratory fuelling to mimic the typical staging duration of Sanderling. We measured daily changes in mass and fat loads, as well as ethoxyresorufin-O-deethylase (EROD) activity, serum biochemical profiles, and liver mass and lipid content following dosing. All dose groups gained fat and increased in mass (size-corrected) during the study period, with females having a higher average body mass than males. However, mass gain was 3.9, 5.4, and 3.8 times lower in the low, medium, and high dose groups, respectively, relative to controls, and body mass in the medium and high dose groups significantly declined near the end of the experiment. EROD activity showed a dose-dependent increase and was significantly elevated in the high dose group relative to controls. Higher individual EROD activity was associated with reduced serum bile acid and elevated serum creatine kinase concentrations in both sexes, and with elevated serum lipase concentrations in females. These results suggest that PAH exposure in Sanderling can interfere with mechanisms of lipid transport and metabolism, can cause muscle damage, and can lead to reduced overall fat loads that are critical to staging duration, departure decisions, migratory speed, and flight range. Given that many shorebirds migrate thousands of kilometers between the breeding and wintering grounds and frequently aggregate at key staging sites that are subject to contamination, PAH exposure likely represents a significant threat to shorebird migratory success.
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Affiliation(s)
- Kristin Bianchini
- Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, Canada S7N 5B3.
| | - Christy A Morrissey
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, Canada S7N 5E2; School of Environment and Sustainability, University of Saskatchewan, 117 Science Place, Saskatoon, SK, Canada S7N 5C8.
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158
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Vondráček J, Pivnička J, Machala M. Polycyclic aromatic hydrocarbons and disruption of steroid signaling. CURRENT OPINION IN TOXICOLOGY 2018. [DOI: 10.1016/j.cotox.2018.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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159
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Poursafa P, Dadvand P, Amin MM, Hajizadeh Y, Ebrahimpour K, Mansourian M, Pourzamani H, Sunyer J, Kelishadi R. Association of polycyclic aromatic hydrocarbons with cardiometabolic risk factors and obesity in children. ENVIRONMENT INTERNATIONAL 2018; 118:203-210. [PMID: 29886236 DOI: 10.1016/j.envint.2018.05.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 05/23/2023]
Abstract
A limited body of evidence exists on the association of exposure to polycyclic aromatic hydrocarbons (PAHs) with cardiometabolic risk factors and obesity in children. No study has evaluated these associations in subgroups of children with and without excess weight, and those with and without cardiometabolic risk factors. We aimed to investigate the association between PAH exposure and cardiometabolic risk factors in children independent of their weight status. The secondary aim was to evaluate the obesogen properties of PAHs in children independent of their cardiometabolic risk factors. This study was based on a representative sample of 186 children (aged 6-18 years) living in Isfahan, Iran (2014-2016). We enrolled four groups of participants with and without excess weight and with and without cardiometabolic risk factor. Urinary levels of monohydroxy PAHs (OH-PAHs) were measured twice, six months apart. Logistic regression models were developed to estimate the associations of tertiles of urinary OH-PAH concentrations with cardiometabolic risk factors and excess weight, adjusted for the relevant covariates. The findings in all participants combined showed that increased risk of cardiometabolic risk factors and excess weight was associated with exposure to most of evaluated PAHs. Exposure to 1-hydroxypyrene was associated with higher risk of cardiometabolic risk factors in participants with excess weight. Exposure to 2-Naphtol was also associated with higher risk of cardiometabolic risk factors in both groups, but the associations were not significant (p < 0.1). For participants without cardiometabolic risk factors, exposure to 2-naphtol, 9-phenanthrol, and ∑ OH-PAH was associated with increased risk of obesity. For participants with cardiometabolic risk factors, we observed similar pattern of associations for 2-naphtol and ∑ OH-PAH, but the associations were not statistically significant (p < 0.1). We found that exposure to PAHs could possibly explain, in part, the cardiometabolic risk factors in children with excess weight as well as obesity in children with normal cardiometabolic profile.
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Affiliation(s)
- Parinaz Poursafa
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Payam Dadvand
- ISGlobal, Barcelona, Spain; Pompeu Fabra University, Barcelona, Spain; Ciber on Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - Mohammad Mehdi Amin
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Yaghoub Hajizadeh
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Karim Ebrahimpour
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamidreza Pourzamani
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jordi Sunyer
- ISGlobal, Barcelona, Spain; Pompeu Fabra University, Barcelona, Spain; Ciber on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
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160
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Guo J, Huang Y, Bian S, Zhao C, Jin Y, Yu D, Wu X, Zhang D, Cao W, Jing F, Chen G. Associations of urinary polycyclic aromatic hydrocarbons with bone mass density and osteoporosis in U.S. adults, NHANES 2005-2010. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:209-218. [PMID: 29738949 DOI: 10.1016/j.envpol.2018.04.108] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 05/20/2023]
Abstract
UNLABELLED Polycyclic aromatic hydrocarbons (PAHs) are environmental endocrine disruptors, which may modify the bone mineralization. However, epidemiological evidences on this issue were scant. We aimed to investigate the associations of PAHs with bone mass density (BMD) and osteoporosis based on a nationally-representative sample from general U.S. POPULATION Data utilized were extracted from the 2005-2010 National Health and Nutrition Examination Survey (NHANES). Nine urinary PAHs (U-PAHs) metabolites were measured as exposure biomarkers. Associations of specific U-PAHs with BMD and osteoporosis were estimated by multivariable adjusted linear regression models and logistic regression models, respectively. Compared with women at the first tertiles, those at the third tertiles of 1-Hydroxynapthalene, 2-Hydroxyfluorene, 3-Hydroxyphenanthrene, 2-Hydroxyphenanthrene and 9-Hydroxyfluorene had significantly decreased BMD levels [coefficient (β) = -0.023 to -0.014, p < 0.05] or increased likelihoods of osteoporosis [odds ratios (ORs) = 1.86 to 3.36, p < 0.05] at different bone sites. Whereas, elevated BMD levels (β = 0.021, p < 0.05) at trochanter and decreased likelihoods of osteoporosis (OR = 0.33, p < 0.05) at intertrochanter were observed among women at the second tertiles of 1-Hydroxypyrene and 2-Hydroxynapthalene, respectively. Similar results were found for all the population, i.e., combination of men and women. Most of the significant associations disappeared among adult men only. Furthermore, Associations between U-PAHs and BMD were stronger for postmenopausal women when compared with premenopausal group. In conclusion, associations of U-PAHs with BMD and osteoporosis varied by specific U-PAHs and bone sites, as well as menopausal status and genders in U.S. adults.
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Affiliation(s)
- Jing Guo
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Huang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Suchen Bian
- Department of Clinical Medicine, Undergraduate School, Zhejiang University School of Medicine, Hangzhou, China
| | - Chuning Zhao
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Yumin Jin
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Dongdong Yu
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinkai Wu
- Department of Clinical Medicine, Undergraduate School, Zhejiang University School of Medicine, Hangzhou, China
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weiming Cao
- School of Humanities and Social Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fangyuan Jing
- Department of Epidemiology and Biostatistics, School of Public Health, Hangzhou Medical College, Hangzhou, China.
| | - Guangdi Chen
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China.
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161
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Nzila A. Biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons under anaerobic conditions: Overview of studies, proposed pathways and future perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 239:788-802. [PMID: 29751337 DOI: 10.1016/j.envpol.2018.04.074] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/15/2018] [Accepted: 04/17/2018] [Indexed: 05/20/2023]
Abstract
The biodegradation of low- and high-molecular-weight polycyclic aromatic hydrocarbons (PAHs) (LWM-PAHs and HMW-PAHs, respectively) has been studied extensively under aerobic conditions. Molecular O2 plays 2 critical roles in this biodegradation process. O2 activates the aromatic rings through hydroxylation prior to ring opening and serves as a terminal electron acceptor (TEA). However, several microorganisms have devised ways of activating aromatic rings, leading to ring opening (and thus biodegradation) when TEAs other than O2 are used (under anoxic conditions). These microorganisms belong to the sulfate-, nitrate-, and metal-ion-reducing bacteria and the methanogens. Although the anaerobic biodegradation of monocyclic aromatic hydrocarbons and LWM-PAH naphthalene have been studied, little information is available about the biodegradation of HMW-PAHs. This manuscript reviews studies of the anaerobic biodegradation of HMW-PAHs and identifies gaps that limit both our understanding and the efficiency of this biodegradation process. Strategies that can be employed to overcome these limitations are also discussed.
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Affiliation(s)
- Alexis Nzila
- King Fahd University of Petroleum and Minerals, Department of Life Sciences, PO Box 468, Dhahran, 31261, Saudi Arabia.
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162
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Li P, Hua R, Li K, Ma S, Wu B, Quan S, Yu Z. Polycyclic aromatic hydrocarbons exposure and early miscarriage in women undergoing in vitro fertilization-embryo transfer. HUM FERTIL 2018; 23:17-22. [PMID: 29950120 DOI: 10.1080/14647273.2018.1479888] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Pei Li
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Rui Hua
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Keyang Li
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shengtao Ma
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
| | - Biao Wu
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Song Quan
- Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiqiang Yu
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
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Abstract
Over recent years, many environmental pollutant chemicals have been shown to possess the ability to interfere in the functioning of the endocrine system and have been termed endocrine disrupting chemicals (EDCs). These compounds exist in air as volatile or semi-volatile compounds in the gas phase or attached to particulate matter. They include components of plastics (phthalates, bisphenol A), components of consumer goods (parabens, triclosan, alkylphenols, fragrance compounds, organobromine flame retardants, fluorosurfactants), industrial chemicals (polychlorinated biphenyls), products of combustion (polychlorinated dibenzodioxins/furans, polyaromatic hydrocarbons), pesticides, herbicides, and some metals. This review summarizes current knowledge concerning the sources of EDCs in air, measurements of levels of EDCs in air, and the potential for adverse effects of EDCs in air on human endocrine health.
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164
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Kinetics of ROS generation induced by polycyclic aromatic hydrocarbons and organic extracts from ambient air particulate matter in model human lung cell lines. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 827:50-58. [DOI: 10.1016/j.mrgentox.2018.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/30/2017] [Accepted: 01/12/2018] [Indexed: 01/08/2023]
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165
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Yamashita N, Saito N, Zhao S, Terai K, Hiruta N, Park Y, Bujo H, Nemoto K, Kanno Y. Heregulin-induced cell migration is promoted by aryl hydrocarbon receptor in HER2-overexpressing breast cancer cells. Exp Cell Res 2018; 366:34-40. [PMID: 29501698 DOI: 10.1016/j.yexcr.2018.02.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/16/2018] [Accepted: 02/26/2018] [Indexed: 12/19/2022]
Abstract
HER2 overexpression accounts for approximately 15-20% of all breast cancers. We have shown that HER2 overexpression leads to elevated expression of the aryl hydrocarbon receptor (AhR) in breast cancer cells. In this study, firstly, we showed that AhR expression was up-regulated by treatment with the HER3 ligand heregulin (HRG) in HER2-overexpressing breast cancer cell lines. Induction of AhR was mediated by transcriptional activation of the region of AhR promoter corresponding to - 190 to - 100 bp. In addition, HRG treatment elicited nuclear translocation of AhR. To investigate the role of AhR in HRG-HER2/HER3 signaling in HER2-overexpressing cells, we established AhR knockout (KO) HER2-overexpressing cells to perform wound-healing assays. HRG-induced cell migration was markedly attenuated by AhR KO. HRG-induced cell migration was associated with increased expression of the inflammatory cytokines interleukin (IL)-6 and IL-8 in wild type cells, but not in AhR KO cells. These results elucidate that AhR is an important factor for the malignancy in HER2 overexpressing breast cancers.
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Affiliation(s)
- Naoya Yamashita
- Department of Molecular Toxicology, Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Nao Saito
- Department of Molecular Toxicology, Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Shuai Zhao
- Department of Molecular Toxicology, Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Kensuke Terai
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan; Department of Surgical Pathology, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan
| | - Nobuyuki Hiruta
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan; Department of Surgical Pathology, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan
| | - Youngjin Park
- Department of Surgery, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan; Department of Breast and Endocrine Surgery, Tohoku Medical and Pharmaceutical University, Fukumuro 1-15-1, Miyagino-ku, Sendai, Miyagi prefecture, 983-8536, Japan
| | - Hideaki Bujo
- Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Shimoshizu 564-1, Sakura, Chiba 285-8741, Japan
| | - Kiyomitsu Nemoto
- Department of Molecular Toxicology, Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Yuichiro Kanno
- Department of Breast and Endocrine Surgery, Tohoku Medical and Pharmaceutical University, Fukumuro 1-15-1, Miyagino-ku, Sendai, Miyagi prefecture, 983-8536, Japan.
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166
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Wang F, Zhang H, Geng N, Ren X, Zhang B, Gong Y, Chen J. A metabolomics strategy to assess the combined toxicity of polycyclic aromatic hydrocarbons (PAHs) and short-chain chlorinated paraffins (SCCPs). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 234:572-580. [PMID: 29223814 DOI: 10.1016/j.envpol.2017.11.073] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 11/05/2017] [Accepted: 11/22/2017] [Indexed: 05/21/2023]
Abstract
The combined toxicity of mixed chemicals is usually evaluated according to several specific endpoints, and other potentially toxic effects are disregarded. In this study, we provided a metabolomics strategy to achieve a comprehensive understanding of toxicological interactions between mixed chemicals on metabolism. The metabolic changes were quantified by a pseudotargeted analysis, and the types of combined effects were quantitatively discriminated according to the calculation of metabolic effect level index (MELI). The metabolomics strategy was used to assess the combined effects of polycyclic aromatic hydrocarbons (PAHs) and short-chain chlorinated paraffins (SCCPs) on the metabolism of human hepatoma HepG2 cells. Our data suggested that exposure to a combination of PAHs and SCCPs at human internal exposure levels could result in an additive effect on the overall metabolism, whereas diverse joint effects were observed on various metabolic pathways. The combined exposure could induce a synergistic up-regulation of phospholipid metabolism, an additive up-regulation of fatty acid metabolism, an additive down-regulation of tricarboxylic acid cycle and glycolysis, and an antagonistic effect on purine metabolism. SCCPs in the mixture acted as the primary driver for the acceleration of phospholipid and fatty acid metabolism. Lipid metabolism disorder caused by exposure to a combination of PAHs and SCCPs should be an important concern for human health.
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Affiliation(s)
- Feidi Wang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haijun Zhang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Ningbo Geng
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaoqian Ren
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baoqin Zhang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yufeng Gong
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jiping Chen
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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167
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Pacheco-Fernández I, Pino V, Lorenzo-Morales J, Ayala JH, Afonso AM. Salt-induced ionic liquid-based microextraction using a low cytotoxic guanidinium ionic liquid and liquid chromatography with fluorescence detection to determine monohydroxylated polycyclic aromatic hydrocarbons in urine. Anal Bioanal Chem 2018; 410:4701-4713. [DOI: 10.1007/s00216-018-0946-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/29/2018] [Accepted: 02/05/2018] [Indexed: 02/06/2023]
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168
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Practical Application of Aptamer-Based Biosensors in Detection of Low Molecular Weight Pollutants in Water Sources. Molecules 2018; 23:molecules23020344. [PMID: 29414854 PMCID: PMC6017897 DOI: 10.3390/molecules23020344] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/30/2018] [Accepted: 01/30/2018] [Indexed: 01/08/2023] Open
Abstract
Water pollution has become one of the leading causes of human health problems. Low molecular weight pollutants, even at trace concentrations in water sources, have aroused global attention due to their toxicity after long-time exposure. There is an increased demand for appropriate methods to detect these pollutants in aquatic systems. Aptamers, single-stranded DNA or RNA, have high affinity and specificity to each of their target molecule, similar to antigen-antibody interaction. Aptamers can be selected using a method called Systematic Evolution of Ligands by EXponential enrichment (SELEX). Recent years we have witnessed great progress in developing aptamer selection and aptamer-based sensors for low molecular weight pollutants in water sources, such as tap water, seawater, lake water, river water, as well as wastewater and its effluents. This review provides an overview of aptamer-based methods as a novel approach for detecting low molecular weight pollutants in water sources.
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169
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Lam MM, Engwall M, Denison MS, Larsson M. Methylated polycyclic aromatic hydrocarbons and/or their metabolites are important contributors to the overall estrogenic activity of polycyclic aromatic hydrocarbon-contaminated soils. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:385-397. [PMID: 28834568 DOI: 10.1002/etc.3958] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/28/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
In the present study 42 polycyclic aromatic compounds (PACs) were investigated for their estrogenic potential using the VM7Luc4E2 transactivation assay. Relative potencies were determined for mass-balance analysis. In addition, compounds were tested in combination with the estrogen receptor (ER) antagonist ICI182,780 (ICI) and the aryl hydrocarbon receptor antagonist/CYP1A1 inhibitor α-naphthoflavone. Luciferase induction and CYP1A1-dependent ethoxyresorufin-O-deethylase (EROD) activity were measured to assess whether the estrogenic activity was elicited by the compound itself and/or by its metabolites. Relative potencies ranged between 10-7 and 10-4 . The ability of ICI to decrease luciferase activity stimulated by all compounds indicated that the induction responses were ER-dependent. The aryl hydrocarbon receptor antagonist/CYP1A1 inhibitor α-naphthoflavone decreased luciferase induction and EROD activity by several compounds, including the methylated chrysenes, suggesting that metabolites of these chemicals contributed to ER activation. Several PACs, such as acridine and its derivatives, appear to directly activate the ER. Furthermore, extracts of soils from industrial areas were examined using this bioassay, and estrogenic activity was detected in all soil samples. Mass-balance analysis using a combination of relative potencies and chemical analysis of the samples suggested that polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs, such as 1- and 3-methylchrysene, are important contributors to the overall estrogenic activity. However, these results revealed that a considerable proportion of the estrogenic activity in the soil remained unexplained, indicating the presence of other significant estrogenic compounds. Environ Toxicol Chem 2018;37:385-397. © 2017 SETAC.
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Affiliation(s)
- Monika M Lam
- MTM Research Center, University of Örebro, Örebro, Sweden
| | - Magnus Engwall
- MTM Research Center, University of Örebro, Örebro, Sweden
| | - Michael S Denison
- Department of Environmental Toxicology, University of California, Davis, California, USA
| | - Maria Larsson
- MTM Research Center, University of Örebro, Örebro, Sweden
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170
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Fu H, Li X, Tan J. NIPAAm-MMA nanoparticle-encapsulated visnagin ameliorates myocardial ischemia/reperfusion injury through the promotion of autophagy and the inhibition of apoptosis. Oncol Lett 2018; 15:4827-4836. [PMID: 29552122 PMCID: PMC5840612 DOI: 10.3892/ol.2018.7922] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 12/19/2017] [Indexed: 12/16/2022] Open
Abstract
The main method for the treatment of acute myocardial infarction (AMI) is percutaneous coronary intervention; however percutaneous coronary intervention will induce ischemia/reperfusion (IR) injury, resulting in the loss of cardiac function and cardiomyocyte death. An effective drug to target this condition is necessary. N-isopropylacrylamide and methacrylic acid were used to synthesize drug delivery nanoparticles (NP) containing the natural compound visnagin for IR injury treatment. It was demonstrated that NP containing fluorescein isothiocyanate localized to the site of myocardial IR, and that NP-visnagin treatment induced cardioprotection, reducing the size of the MI and ameliorating cardiac dysfunction through the induction of autophagy and the inhibition of apoptosis. In the future, visnagin may be suitable as a drug for IR injury treatment, and NP may be an effective drug delivery system.
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Affiliation(s)
- Hairong Fu
- Department of Physiology, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Xiaoshan Li
- Department of Pathology, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
| | - Jiahua Tan
- Department of Physical Education, Chongqing Three Gorges Medical College, Chongqing 404120, P.R. China
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171
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Gauer B, Brucker N, Barth A, Arbo MD, Gioda A, Thiesen FV, Nardi J, Garcia SC. Are metals and pyrene levels additional factors playing a pivotal role in air pollution-induced inflammation in taxi drivers? Toxicol Res (Camb) 2018; 7:8-12. [PMID: 30090557 PMCID: PMC6060951 DOI: 10.1039/c7tx00203c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 10/09/2017] [Indexed: 01/17/2023] Open
Abstract
This study aimed to evaluate which xenobiotic (As, Hg, Pb or pyrenes) is primarily responsible for the inflammatory process in taxi drivers. Multiple regression analysis showed that Hg is the main xenobiotic responsible for the increase of cytokine levels. These associations suggest that co-exposure to pollutants could be a risk factor for health effects.
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Affiliation(s)
- Bruna Gauer
- Laboratory of Toxicology (LATOX) , Department of Analysis , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil . ; ; Tel: (+55)51 3308-5297
- Post-Graduate Program in Pharmaceutical Sciences , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil
| | - Natália Brucker
- Department of Physiology and Pharmacology , Federal University of Santa Maria , Roraima 1000 , 97105-900 , Santa Maria , RS , Brazil
| | - Anelise Barth
- Laboratory of Toxicology (LATOX) , Department of Analysis , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil . ; ; Tel: (+55)51 3308-5297
| | - Marcelo D Arbo
- Laboratory of Toxicology (LATOX) , Department of Analysis , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil . ; ; Tel: (+55)51 3308-5297
- Post-Graduate Program in Pharmaceutical Sciences , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil
| | - Adriana Gioda
- Department of Chemistry , Pontifical Catholic University of Rio de Janeiro (PUC-Rio) , Rua Marquês de São Vicente 225 , 22451-900 , Rio de Janeiro , RJ , Brazil
| | - Flávia V Thiesen
- Pharmacy Faculty and Toxicology Institute , Pontifical Catholic University of Rio Grande do Sul , Av. Ipiranga 6681 , 90619-900 , Porto Alegre , RS , Brazil
| | - Jessica Nardi
- Laboratory of Toxicology (LATOX) , Department of Analysis , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil . ; ; Tel: (+55)51 3308-5297
- Post-Graduate Program in Pharmaceutical Sciences , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil
| | - Solange C Garcia
- Laboratory of Toxicology (LATOX) , Department of Analysis , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil . ; ; Tel: (+55)51 3308-5297
- Post-Graduate Program in Pharmaceutical Sciences , Universidade Federal do Rio Grande do Sul , Av. Ipiranga 2752 , 90610-000 , Porto Alegre , RS , Brazil
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172
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Fianchini M. Synthesis meets theory: Past, present and future of rational chemistry. PHYSICAL SCIENCES REVIEWS 2017. [DOI: 10.1515/psr-2017-0134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Chemical synthesis has its roots in the empirical approach of alchemy. Nonetheless, the birth of the scientific method, the technical and technological advances (exploiting revolutionary discoveries in physics) and the improved management and sharing of growing databases greatly contributed to the evolution of chemistry from an esoteric ground into a mature scientific discipline during these last 400 years. Furthermore, thanks to the evolution of computational resources, platforms and media in the last 40 years, theoretical chemistry has added to the puzzle the final missing tile in the process of “rationalizing” chemistry. The use of mathematical models of chemical properties, behaviors and reactivities is nowadays ubiquitous in literature. Theoretical chemistry has been successful in the difficult task of complementing and explaining synthetic results and providing rigorous insights when these are otherwise unattainable by experiment. The first part of this review walks the reader through a concise historical overview on the evolution of the “model” in chemistry. Salient milestones have been highlighted and briefly discussed. The second part focuses more on the general description of recent state-of-the-art computational techniques currently used worldwide by chemists to produce synergistic models between theory and experiment. Each section is complemented by key-examples taken from the literature that illustrate the application of the technique discussed therein.
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173
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Broniatowski M, Binczycka M, Wójcik A, Flasiński M, Wydro P. Polycyclic aromatic hydrocarbons in model bacterial membranes – Langmuir monolayer studies. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:2402-2412. [DOI: 10.1016/j.bbamem.2017.09.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/31/2017] [Accepted: 09/14/2017] [Indexed: 12/16/2022]
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174
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Duarte RM, Sadauskas-Henrique H, de Almeida-Val VMF, Val AL, Nice HE, Gagnon MM. Biomarker responses and PAH ratios in fish inhabiting an estuarine urban waterway. ENVIRONMENTAL TOXICOLOGY 2017; 32:2305-2315. [PMID: 28707373 DOI: 10.1002/tox.22447] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/29/2017] [Accepted: 07/02/2017] [Indexed: 06/07/2023]
Abstract
Many cities worldwide are established adjacent to estuaries and their catchments resulting in estuarine contamination due to intense anthropogenic activities. The aim of this study was to evaluate if fish living in an estuarine urban waterway were affected by contamination, via the measurement of a suite of biomarkers of fish health. Black bream (Acanthopagrus butcheri) were sampled in a small urban embayment and a suite of biomarkers of fish health measured. These were condition factor (CF), liver somatic index (LSI), gonadosomatic index (GSI), hepatic EROD activity, polycyclic aromatic hydrocarbon (PAH) biliary metabolites, serum sorbitol dehydrogenase (s-SDH) and branchial enzymes cytochrome C oxidase (CCO), and lactate dehydrogenase (LDH) activities. The biomarkers of exposure EROD activity, and pyrene- and B(a)P-type biliary metabolites confirmed current or recent exposure of the fish and that fish were metabolizing contaminants. Relative to a reference site, LSI was higher in fish collected in the urban inlet as was the metabolic enzyme LDH activity. CF, GSI, s-SDH, CCO, and naphthalene-type metabolites were at similar levels in the urban inlet relative to the reference site. PAH biliary metabolite ratios of high-molecular-weight to low-molecular-weight suggest that fish from the urban inlet were exposed to pyrogenic PAHs, likely from legacy contamination and road runoff entering the embayment. Similarly, the sediment PAH ratios and the freshness indices suggested legacy contamination of a pyrogenic source, likely originating from the adjacent historic gasworks site and a degree of contamination of petrogenic nature entering the inlet via storm water discharge. Biomarkers of exposure and effect confirmed that black bream collected in the Claisebrook Cove inlet, Western Australia, are currently exposed to contamination and are experiencing metabolic perturbations not observed in fish collected at a nearby reference site.
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Affiliation(s)
- Rafael Mendonça Duarte
- São Paulo State University (UNESP), Institute of Bioscence, São Vicente, São Paulo, Brazil
- Brazilian National Institute for Research of the Amazon, Laboratory of Ecophysiology and Molecular Evolution, 69060-001, Manaus, Amazonas, Brazil
| | - Helen Sadauskas-Henrique
- Brazilian National Institute for Research of the Amazon, Laboratory of Ecophysiology and Molecular Evolution, 69060-001, Manaus, Amazonas, Brazil
- UNISANTA (Universidade Santa Cecília), Programa de Pós-Graduação em Sustentabilidade de Ecossistemas Costeiros e Marinhos, Rua Oswaldo Cruz, 277 (Boqueirão), 11045-907, Santos, São Paulo, Brazil
| | - Vera Maria Fonseca de Almeida-Val
- Brazilian National Institute for Research of the Amazon, Laboratory of Ecophysiology and Molecular Evolution, 69060-001, Manaus, Amazonas, Brazil
| | - Adalberto Luis Val
- Brazilian National Institute for Research of the Amazon, Laboratory of Ecophysiology and Molecular Evolution, 69060-001, Manaus, Amazonas, Brazil
| | - Helen Elizabeth Nice
- Department of Water, Water Science Branch, Perth, Western Australia, 6169, Australia
| | - Marthe Monique Gagnon
- Department of Environment and Agriculture, Curtin University, GPO Box U1987, Perth, Western Australia, 6845, Australia
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175
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Drwal E, Rak A, Grochowalski A, Milewicz T, Gregoraszczuk EL. Cell-specific and dose-dependent effects of PAHs on proliferation, cell cycle, and apoptosis protein expression and hormone secretion by placental cell lines. Toxicol Lett 2017; 280:10-19. [DOI: 10.1016/j.toxlet.2017.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 12/14/2022]
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176
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Polycyclic aromatic hydrocarbons and female reproductive health: A scoping review. Reprod Toxicol 2017; 73:61-74. [DOI: 10.1016/j.reprotox.2017.07.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 12/14/2022]
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177
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Ren G, Hu J, Shang Y, Zhong Y, Yu Z, An J. Tributylphosphate (TBP) and tris (2-butoxyethyl) phosphate (TBEP) induced apoptosis and cell cycle arrest in HepG2 cells. Toxicol Res (Camb) 2017; 6:902-911. [PMID: 30090552 DOI: 10.1039/c7tx00180k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/29/2017] [Indexed: 11/21/2022] Open
Abstract
The purpose of this study was to investigate the cytotoxic effects of tributylphosphate (TBP) and tris (2-butoxyethyl) phosphate (TBEP) and to explore the underlying molecular mechanism focusing on oxidative stress, apoptosis, and cell cycle arrest. The results showed that TBP and TBEP could inhibit cell proliferation, induce cellular reactive oxidative stress, and suppress the mitochondrial membrane potential in HepG2 cells. TBP and TBEP could induce both mitochondrial and p53 mediated apoptosis through different mitogen-activated protein kinase (MAPK) signal pathways. TBP activated the c-Jun N-terminal kinase (JNK) and extracellular regulated protein kinase (ERK1/2) pathways, while TBEP activated the JNK pathway. Furthermore, TBP and TBEP caused a concentration-dependent decrease of cyclin D1 expression and an increase of cyclin-dependent kinase (CDK) inhibitor proteins such as p21 and p27, resulting in significant cell cycle arrest in the G0/G1 phase. Taken together, the toxicity of TBP and TBEP on the HepG2 cells was associated with apoptosis and cell cycle arrest induced by oxidative stress.
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Affiliation(s)
- Guofa Ren
- Institute of Environmental Pollution and Health , School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , P. R. China . ; ; Tel: +86-021-66137736
| | - Jingwen Hu
- Institute of Environmental Pollution and Health , School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , P. R. China . ; ; Tel: +86-021-66137736
| | - Yu Shang
- Institute of Environmental Pollution and Health , School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , P. R. China . ; ; Tel: +86-021-66137736
| | - Yufang Zhong
- Institute of Environmental Pollution and Health , School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , P. R. China . ; ; Tel: +86-021-66137736
| | - Zhiqiang Yu
- State Key Laboratory of Organic Geochemistry , Guangzhou Institute of Geochemistry , Chinese Academy of Sciences , Guangzhou 510640 , P. R. China
| | - Jing An
- Institute of Environmental Pollution and Health , School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , P. R. China . ; ; Tel: +86-021-66137736
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178
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Poursafa P, Amin MM, Hajizadeh Y, Mansourian M, Pourzamani H, Ebrahim K, Sadeghian B, Kelishadi R. Association of atmospheric concentrations of polycyclic aromatic hydrocarbons with their urinary metabolites in children and adolescents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17136-17144. [PMID: 28585013 DOI: 10.1007/s11356-017-9315-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
This study aims to determine the atmospheric concentrations of particulate matter 2.5 (PM2.5)-bounded polycyclic aromatic hydrocarbons (PAHs) and their association with their urinary metabolites in children and adolescents. This study was conducted from October 2014 to March 2016 in Isfahan, Iran. We measured 16 species of PAHs bounded to PM2.5 by gas chromatography mass spectrometry (GC/MS) from 7 parts of the city. Moreover, PAH urinary metabolites were measured in 186 children and adolescents, randomly selected from households. Urinary metabolites consisted of 1-hydroxy naphthalene (1-naphthol), 2-hydroxy naphthalene (2-naphthol), 9-hydroxy phenanthrene (9-phenanthrol), and 1-hydroxy pyrene using GC/MS. Considering the short half-lives of PAHs, we measured the metabolites twice with 4 to 6 months of time interval. We found that the ambient concentrations of PAHs were significantly associated with their urinary metabolites. 1-hydroxy naphthalene and 2-hydroxy naphthalene concentrations showed an increase of 1.049 (95% CI: 1.030, 1.069) and 1.047 (95% CI: 1.025, 1.066) for each unit increase (1 ng/m3) in ambient naphthalene. Similarly, 1-hydroxy pyrene showed an increase of 1.009 (95% CI: 1.006-1.011) for each unit increase (1 ng/m3) in ambient pyrene concentration after adjustment for body mass index, physical activity level, urinary creatinine, age, and sex. The association of urinary 9-hydroxyphenanthrene and ambient phenantherene was significant in the crude model; however after adjustment for the abovementioned covariates, it was no more significant. We found significant correlations between exposure to ambient PM2.5-bounded PAHs and their urinary excretion. Considering the adverse health effects of PAHs in the pediatric age group, biomonitoring of PAHs should be underscored; preventive measures need to be intensified.
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Affiliation(s)
- Parinaz Poursafa
- Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehdi Amin
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, Iran.
| | - Yaghoub Hajizadeh
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamidreza Pourzamani
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Karim Ebrahim
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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179
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Aryl hydrocarbon receptor (AHR): "pioneer member" of the basic-helix/loop/helix per-Arnt-sim (bHLH/PAS) family of "sensors" of foreign and endogenous signals. Prog Lipid Res 2017; 67:38-57. [PMID: 28606467 DOI: 10.1016/j.plipres.2017.06.001] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/05/2017] [Accepted: 06/05/2017] [Indexed: 12/21/2022]
Abstract
The basic-helix/loop/helix per-Arnt-sim (bHLH/PAS) family comprises many transcription factors, found throughout all three kingdoms of life; bHLH/PAS members "sense" innumerable intracellular and extracellular "signals" - including endogenous compounds, foreign chemicals, gas molecules, redox potential, photons (light), gravity, heat, and osmotic pressure. These signals then initiate downstream signaling pathways involved in responding to that signal. The term "PAS", abbreviation for "per-Arnt-sim" was first coined in 1991. Although the mouse Arnt gene was not identified until 1991, evidence of its co-transcriptional binding partner, aryl hydrocarbon receptor (AHR), was first reported in 1974 as a "sensor" of foreign chemicals, up-regulating cytochrome P450 family 1 (CYP1) and other enzyme activities that usually metabolize the signaling chemical. Within a few years, AHR was proposed also to participate in inflammation. The mouse [Ah] locus was shown (1973-1989) to be relevant to chemical carcinogenesis, mutagenesis, toxicity and teratogenesis, the mouse Ahr gene was cloned in 1992, and the first Ahr(-/-) knockout mouse line was reported in 1995. After thousands of studies from the early 1970s to present day, we now realize that AHR participates in dozens of signaling pathways involved in critical-life processes, affecting virtually every organ and cell-type in the animal, including many invertebrates.
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180
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Inhibition of endocytic lipid antigen presentation by common lipophilic environmental pollutants. Sci Rep 2017; 7:2085. [PMID: 28522830 PMCID: PMC5437007 DOI: 10.1038/s41598-017-02229-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 04/10/2017] [Indexed: 12/11/2022] Open
Abstract
Environmental pollutants as non-heritable factors are now recognized as triggers for multiple human inflammatory diseases involving T cells. We postulated that lipid antigen presentation mediated by cluster of differentiation 1 (CD1) proteins for T cell activation is susceptible to lipophilic environmental pollutants. To test this notion, we determined whether the common lipophilic pollutants benzo[a]pyrene and diesel exhaust particles impact on the activation of lipid-specific T cells. Our results demonstrated that the expression of CD1a and CD1d proteins, and the activation of CD1a- and CD1d-restricted T cells were sensitively inhibited by benzo[a]pyrene even at the low concentrations detectable in exposed human populations. Similarly, diesel exhaust particles showed a marginal inhibitory effect. Using transcriptomic profiling, we discovered that the gene expression for regulating endocytic and lipid metabolic pathways was perturbed by benzo[a]pyrene. Imaging flow cytometry also showed that CD1a and CD1d proteins were retained in early and late endosomal compartments, respectively, supporting an impaired endocytic lipid antigen presentation for T cell activation upon benzo[a]pyrene exposure. This work conceptually demonstrates that lipid antigen presentation for T cell activation is inhibited by lipophilic pollutants through profound interference with gene expression and endocytic function, likely further disrupting regulatory cytokine secretion and ultimately exacerbating inflammatory diseases.
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181
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Tan H, Li R, Zhu Y, Zhang Y. In situ quantitative and visual investigation of the retention of polycyclic aromatic hydrocarbons on the root surface of Kandelia obovata using a microscopic fluorescence spectral analysis method. Talanta 2017; 167:86-93. [DOI: 10.1016/j.talanta.2017.01.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 01/14/2017] [Accepted: 01/25/2017] [Indexed: 12/29/2022]
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182
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Asako Y, Uesawa Y. High-Performance Prediction of Human Estrogen Receptor Agonists Based on Chemical Structures. Molecules 2017; 22:molecules22040675. [PMID: 28441746 PMCID: PMC6154693 DOI: 10.3390/molecules22040675] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/16/2017] [Accepted: 04/19/2017] [Indexed: 12/20/2022] Open
Abstract
Many agonists for the estrogen receptor are known to disrupt endocrine functioning. We have developed a computational model that predicts agonists for the estrogen receptor ligand-binding domain in an assay system. Our model was entered into the Tox21 Data Challenge 2014, a computational toxicology competition organized by the National Center for Advancing Translational Sciences. This competition aims to find high-performance predictive models for various adverse-outcome pathways, including the estrogen receptor. Our predictive model, which is based on the random forest method, delivered the best performance in its competition category. In the current study, the predictive performance of the random forest models was improved by strictly adjusting the hyperparameters to avoid overfitting. The random forest models were optimized from 4000 descriptors simultaneously applied to 10,000 activity assay results for the estrogen receptor ligand-binding domain, which have been measured and compiled by Tox21. Owing to the correlation between our model's and the challenge's results, we consider that our model currently possesses the highest predictive power on agonist activity of the estrogen receptor ligand-binding domain. Furthermore, analysis of the optimized model revealed some important features of the agonists, such as the number of hydroxyl groups in the molecules.
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Affiliation(s)
- Yuki Asako
- Department of Clinical Pharmaceutics Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
| | - Yoshihiro Uesawa
- Department of Clinical Pharmaceutics Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
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183
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Association between air pollution and mammographic breast density in the Breast Cancer Surveilance Consortium. Breast Cancer Res 2017; 19:36. [PMID: 28381271 PMCID: PMC5382391 DOI: 10.1186/s13058-017-0828-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/28/2017] [Indexed: 11/25/2022] Open
Abstract
Background Mammographic breast density is a well-established strong risk factor for breast cancer. The environmental contributors to geographic variation in breast density in urban and rural areas are poorly understood. We examined the association between breast density and exposure to ambient air pollutants (particulate matter <2.5 μm in diameter (PM2.5) and ozone (O3)) in a large population-based screening registry. Methods Participants included women undergoing mammography screening at imaging facilities within the Breast Cancer Surveillance Consortium (2001–2009). We included women aged ≥40 years with known residential zip codes before the index mammogram (n = 279,967). Breast density was assessed using the American College of Radiology’s Breast Imaging-Reporting and Data System (BI-RADS) four-category breast density classification. PM2.5 and O3 estimates for grids across the USA (2001–2008) were obtained from the US Environmental Protection Agency Hierarchical Bayesian Model (HBM). For the majority of women (94%), these estimates were available for the year preceding the mammogram date. Association between exposure to air pollutants and density was estimated using polytomous logistic regression, adjusting for potential confounders. Results Women with extremely dense breasts had higher mean PM2.5 and lower O3 exposures than women with fatty breasts (8.97 vs. 8.66 ug/m3 and 33.70 vs. 35.82 parts per billion (ppb), respectively). In regression analysis, women with heterogeneously dense vs. scattered fibroglandular breasts were more likely to have higher exposure to PM2.5 (fourth vs. first quartile odds ratio (OR) = 1.19, 95% confidence interval (CI) 1.16 − 1.23). Women with extremely dense vs. scattered fibroglandular breasts were less likely to have higher levels of ozone exposure (fourth vs. first quartile OR = 0.80, 95% CI 0.73–0.87). Conclusion Exposure to PM2.5 and O3 may in part explain geographical variation in mammographic density. Further studies are warranted to determine the causal nature of these associations.
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184
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Shen J, Liao Y, Hopper JL, Goldberg M, Santella RM, Terry MB. Dependence of cancer risk from environmental exposures on underlying genetic susceptibility: an illustration with polycyclic aromatic hydrocarbons and breast cancer. Br J Cancer 2017; 116:1229-1233. [PMID: 28350789 PMCID: PMC5418454 DOI: 10.1038/bjc.2017.81] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background: Most studies of environmental risk factors and breast cancer are conducted using average risk cohorts. Methods: We examined the association between polycyclic aromatic hydrocarbon (PAH)-albumin adducts in bloods from baseline and breast cancer risk in a prospective nested case–control study (New York site of the BCFR, 80 cases and 156 controls). We estimated the 10-year absolute breast cancer risk by a risk model that uses pedigree information (BOADICEA) and evaluated whether the increased risk from PAH differed by absolute risk. Results: Women with detectable levels of PAH had a twofold association with breast cancer risk (odds ratio (OR)=2.04; 95% CI=1.06–3.93) relative to women with non-detectable levels. The association increased with higher levels of PAH (⩾median) and by a higher level of absolute breast cancer risk (10-year risk ⩾3.4%: OR=4.09, 95% CI=1.38–12.13). Conclusions: These results support that family-based cohorts can be an efficient way to examine gene–environment interactions.
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Affiliation(s)
- Jing Shen
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA
| | - Yuyan Liao
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, VIC 3010, Australia
| | - Mandy Goldberg
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA
| | - Regina M Santella
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, 1130 St Nicholas Avenue, New York, NY 10032, USA
| | - Mary Beth Terry
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, 1130 St Nicholas Avenue, New York, NY 10032, USA
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185
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Madeen EP, Williams DE. Environmental PAH exposure and male idiopathic infertility: a review on early life exposures and adult diagnosis. REVIEWS ON ENVIRONMENTAL HEALTH 2017; 32:73-81. [PMID: 27935856 PMCID: PMC5454023 DOI: 10.1515/reveh-2016-0045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 10/24/2016] [Indexed: 05/07/2023]
Abstract
The male reproductive system is acutely and uniquely sensitive to a variety of toxicities, including those induced by environmental pollutants throughout the lifespan. Early life hormonal and morphological development results in several especially sensitive critical windows of toxicity risk associated with lifelong decreased reproductive health and fitness. Male factor infertility can account for over 40% of infertility in couples seeking treatment, and 44% of infertile men are diagnosed with idiopathic male infertility. Human environmental exposures are poorly understood due to limited available data. The latency between maternal and in utero exposure and a diagnosis in adulthood complicates the correlation between environmental exposures and infertility. The results from this review include recommendations for more and region specific monitoring of polycyclic aromatic hydrocarbon (PAH) exposure, longitudinal and clinical cohort considerations of exposure normalization, gene-environment interactions, in utero exposure studies, and controlled mechanistic animal experiments. Additionally, it is recommended that detailed semen analysis and male fertility data be included as endpoints in environmental exposure cohort studies due to the sensitivity of the male reproductive system to environmental pollutants, including PAHs.
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Affiliation(s)
- Erin P. Madeen
- Superfund Research Program, Oregon State University, Agriculture and Life Sciences Bldg, Corvallis, Oregon 97330, USA
| | - David E. Williams
- Superfund Research Program, Oregon State University, Agriculture and Life Sciences Bldg, Corvallis, Oregon 97330, USA
- Department of Environmental and Molecular Toxicology, Agriculture and Life Sciences Bldg, Oregon State University, Corvallis Oregon 97330, USA
- Linus Pauling Institute, Linus Pauling Science Center, Oregon State University, Corvallis, Oregon, 97330, USA
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186
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Pellegrino Vidal RB, Ibañez GA, Escandar GM. Advantages of Data Fusion: First Multivariate Curve Resolution Analysis of Fused Liquid Chromatographic Second-Order Data with Dual Diode Array-Fluorescent Detection. Anal Chem 2017; 89:3029-3035. [DOI: 10.1021/acs.analchem.6b04720] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rocío B. Pellegrino Vidal
- Instituto de Química
Rosario (CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (2000), Rosario, Argentina
| | - Gabriela A. Ibañez
- Instituto de Química
Rosario (CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (2000), Rosario, Argentina
| | - Graciela M. Escandar
- Instituto de Química
Rosario (CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (2000), Rosario, Argentina
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187
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Das DN, Panda PK, Naik PP, Mukhopadhyay S, Sinha N, Bhutia SK. Phytotherapeutic approach: a new hope for polycyclic aromatic hydrocarbons induced cellular disorders, autophagic and apoptotic cell death. Toxicol Mech Methods 2017; 27:1-17. [PMID: 27919191 DOI: 10.1080/15376516.2016.1268228] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) comprise the major class of cancer-causing chemicals and are ranked ninth among the chemical compounds threatening to humans. Moreover, interest in PAHs has been mainly due to their genotoxic, teratogenic, mutagenic and carcinogenic property. Polymorphism in cytochrome P450 (CYP450) and aryl hydrocarbon receptor (AhR) has the capacity to convert procarcinogens into carcinogens, which is an imperative factor contributing to individual susceptibility to cancer development. The carcinogenicity potential of PAHs is related to their ability to bind to DNA, thereby enhances DNA cross-linking, causing a series of disruptive effects which can result in tumor initiation. They induce cellular toxicity by regulating the generation of reactive oxygen species (ROS), which arbitrate apoptosis. Additionally, cellular toxicity-mediated apoptotic and autophagic cell death and immune suppression by industrial pollutants PAH, provide fertile ground for the proliferation of mutated cells, which results in cancer growth and progression. PAHs play a foremost role in angiogenesis necessary for tumor metastasization by promoting the upregulation of metalloproteinase-9 (MMP-9), vascular endothelial growth factor (VEGF) and hypoxia inducible factor (HIF) in human cancer cells. This review sheds light on the molecular mechanisms of PAHs induced cancer development as well as autophagic and apoptotic cell death. Besides that authors have unraveled how phytotherapeutics is an alternate potential therapeutics acting as a savior from the toxic effects of PAHs for safer and cost effective perspectives.
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Affiliation(s)
- Durgesh Nandini Das
- a Department of Life Sciences , National Institute of Technology , Rourkela , India
| | | | - Prajna Paramita Naik
- a Department of Life Sciences , National Institute of Technology , Rourkela , India
| | | | - Niharika Sinha
- a Department of Life Sciences , National Institute of Technology , Rourkela , India
| | - Sujit K Bhutia
- a Department of Life Sciences , National Institute of Technology , Rourkela , India
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188
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Retention behavior of isomeric polycyclic aromatic sulfur heterocycles in gas chromatography on stationary phases of different selectivity. J Chromatogr A 2017; 1485:120-130. [PMID: 28089272 DOI: 10.1016/j.chroma.2017.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/06/2017] [Accepted: 01/09/2017] [Indexed: 02/08/2023]
Abstract
Retention indices for 48 polycyclic aromatic sulfur heterocycles (PASHs) were determined using gas chromatography with three different stationary phases: a 50% phenyl phase, a 50% liquid crystalline dimethylpolysiloxane (LC-DMPS) phase, and an ionic liquid (IL) phase. Correlations between the retention behavior on the three stationary phases and PASH geometry (L/B and T, i.e., length-to-breadth ratio and thickness, respectively) were investigated for the following four isomer sets: (1) 4 three-ring molecular mass (MM) 184Da PASHs, (2) 13 four-ring MM 234Da PASHs, (3) 10 five-ring MM 258Da PASHs, and (4) 20 five-ring MM 284Da PASHs. Correlation coefficients for retention on the 50% LC-DMPS vs L/B ranged from r=0.50 (MM 284Da) to r=0.77 (MM 234Da). Correlation coefficients for retention on the IL phase vs L/B ranged from r=0.31 (MM 234Da) to r=0.54 (MM 284Da). Correlation coefficients for retention on the 50% phenyl vs L/B ranged from r=0.14 (MM 258Da) to r=0.59 (MM 284Da). Several correlation trends are discussed in detail for the retention behavior of PASH on the three stationary phases.
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189
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Parada H, Steck SE, Bradshaw PT, Engel LS, Conway K, Teitelbaum SL, Neugut AI, Santella RM, Gammon MD. Grilled, Barbecued, and Smoked Meat Intake and Survival Following Breast Cancer. J Natl Cancer Inst 2017; 109:2804985. [PMID: 28052933 DOI: 10.1093/jnci/djw299] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/06/2016] [Accepted: 11/14/2016] [Indexed: 01/07/2023] Open
Abstract
Background Grilled, barbecued, and smoked meat intake, a prevalent dietary source of polycyclic aromatic hydrocarbon (PAH) carcinogens, may increase the risk of incident breast cancer. However, no studies have examined whether intake of this PAH source influences survival after breast cancer. Methods We interviewed a population-based cohort of 1508 women diagnosed with first primary invasive or in situ breast cancer in 1996 and 1997 at baseline and again approximately five years later to assess grilled/barbecued and smoked meat intake. After a median of 17.6 years of follow-up, 597 deaths, of which 237 were breast cancer related, were identified. Multivariable Cox regression was used to estimate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for mortality as related to prediagnosis intake, comparing high (above the median) to low intake, as well as postdiagnosis changes in intake, comparing every combination of pre-/postdiagnosis intake to low pre-/postdiagnosis intake. All statistical tests were two-sided. Results High prediagnosis grilled/barbecued and smoked meat intake was associated with increased risk of all-cause mortality (HR = 1.23, 95% CI = 1.03 to 1.46). Other associations were noted, but estimates were not statistically significant. These include high prediagnosis smoked beef/lamb/pork intake and increased all-cause (HR = 1.17, 95% CI = 0.99 to 1.38, Ptrend = .10) and breast cancer-specific (HR = 1.23, 95% CI = 0.95 to 1.60, Ptrend = .09) mortality. Also, among women with continued high grilled/barbecued and smoked meat intake after diagnosis, all-cause mortality risk was elevated 31% (HR = 1.31, 95% CI = 0.96 to 1.78). Further, breast cancer-specific mortality was decreased among women with any pre- and postdiagnosis intake of smoked poultry/fish (HR = 0.55, 95% CI = 0.31 to 0.97). Conclusion High intake of grilled/barbecued and smoked meat may increase mortality after breast cancer.
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Affiliation(s)
- Humberto Parada
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Susan E Steck
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Patrick T Bradshaw
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Lawrence S Engel
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Kathleen Conway
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Susan L Teitelbaum
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Alfred I Neugut
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Regina M Santella
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
| | - Marilie D Gammon
- Affiliations of authors: Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC (HPJr, LSE, KC, MDG); Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC (SES); Division of Epidemiology, School of Public Health, University of California, Berkeley, Berkeley, CA (PTB); Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY (SLT); Department of Epidemiology (AIN), Department of Medicine (AIN), and Department of Environmental Health (RMS), Columbia University, New York, NY
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Yin S, Tang M, Chen F, Li T, Liu W. Environmental exposure to polycyclic aromatic hydrocarbons (PAHs): The correlation with and impact on reproductive hormones in umbilical cord serum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:1429-1437. [PMID: 27838061 DOI: 10.1016/j.envpol.2016.10.090] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/26/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a type of ubiquitous pollutant with the potential ability to cause endocrine disruption that would have an adverse health impact on the general population. To assess the maternal exposure to PAHs in neonates and evaluate the possible impact of PAHs on reproductive hormone levels, the concentration of PAHs and reproductive hormone levels in the umbilical cord serum of 98 mother-infant pairs in the Shengsi Islands were investigated. The median concentration of total PAHs was determined to be 164 (Inter-Quartile Range, IQR 93.6-267) ng g-1 lipid, and 68% of the PAHs were lower-molecule congeners. The highest level was found for pyrene (PYR) and naphthalene (NAP), which contributed 54.6% of all the PAHs present in the samples. The exposure to PAHs negatively affected estradiol (E2) and Anti-Mullerian hormones (AMH) and positively affected FSH in the umbilical cord serum. The result expanded the database of the human burden of PAHs and suggested that PAHs can act as a type of Endocrine-Disrupting Chemical (EDC). These results may help to understand the complex pathways involved in disorders of human reproductive health associated with prenatal exposure to PAHs.
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Affiliation(s)
- Shanshan Yin
- Ministry of Education Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Mengling Tang
- Ministry of Education Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fangfang Chen
- Ministry of Education Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tianle Li
- Ministry of Education Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Weiping Liu
- Ministry of Education Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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191
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de Oliveira Galvão MF, de Queiroz JDF, Duarte EDSF, Hoelzemann JJ, de André PA, Saldiva PHN, Menezes Filho JA, Batistuzzo de Medeiros SR. Characterization of the particulate matter and relationship between buccal micronucleus and urinary 1-hydroxypyrene levels among cashew nut roasting workers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:659-671. [PMID: 27839996 DOI: 10.1016/j.envpol.2016.10.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/27/2016] [Accepted: 10/08/2016] [Indexed: 06/06/2023]
Abstract
The present study is the first assessment of occupational risk associated with artisanal cashew nut roasting using exposure and effect biomarkers, as well as a characterization and dispersion analysis of the released particulate matter (PM). A real-time particle monitor was used to quantify PM1.0, PM2.5 and PM10. Furthermore, the PM was sampled using a Handi-vol sampler, and the physicochemical characteristics were determined by SEM-EDS analysis. Trajectories, dispersion and deposition of the emitted material were calculated using the NOAA-HYSPLIT model. Urinary 1-hydroxypyrene (1-OHP) levels were analyzed by HPLC. DNA damage, chromosomal instability and cell death were measured by a buccal micronucleus cytome assay (BMCyt). The PM concentrations for all measurements in the exposed area were higher than in the non-exposed area. SEM-EDS analyses exhibited a wide variety of particles, and K, Cl, S and Ca biomass burning tracers were the major inorganic compounds. In addition, atmospheric modeling analysis suggested that these particles can reach regions farther away than 40 kilometers. Occupational polycyclic aromatic hydrocarbon exposure was confirmed by increases in 1-OHP levels in cashew nut workers. Frequencies of BMCyt biomarkers of genotoxicity (micronuclei and nuclear bud) and cytotoxicity (pyknosis, karyolysis, karyorrhexis and condensed chromatin) were higher in the exposed group compared with the controls. The influence of factors, such as age, on the micronuclei frequencies was demonstrated, and a correlation between 1-OHP and micronuclei was observed. To the best of our knowledge, no other study has demonstrated a correlation between these types of biomarkers. The use of exposure (1-OHP) and effect (BMCyt) biomarkers were therefore efficient in assessing the occupational risk associated with artisanal cashew nut roasting, and the high rates of PM2.5 are considered to be a potential contributor to this effect.
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Affiliation(s)
| | | | | | - Judith Johanna Hoelzemann
- Departamento de Ciências Atmosféricas e Climáticas, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil.
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192
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Kerdelhué B, Forest C, Coumoul X. Dimethyl-Benz(a)anthracene: A mammary carcinogen and a neuroendocrine disruptor. BIOCHIMIE OPEN 2016; 3:49-55. [PMID: 29450131 PMCID: PMC5801823 DOI: 10.1016/j.biopen.2016.09.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 09/30/2016] [Indexed: 12/22/2022]
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) are potent carcinogens. Among these, dimethylbenz(a)anthracene (DMBA) is well known for its capacity to induce mammary carcinomas in female Sprague-Dawley (SD) rats. Ovariectomy suppresses the susceptibility of this model to DMBA, thus suggesting that the inducible action of the carcinogen depends on ovarian hormones. The promotion of DMBA-induced adenocarcinoma is accompanied by a series of neuroendocrine disruptions of both Hypothalamo-Pituitary-Gonadal (HPG) and Hypothalamo-Pituitary-Adrenal (HPA) axes and of the secretion of melatonin during the latency period of 2 months that precedes the occurrence of the first mammary tumor. The present review analyses the various neuroendocrine disruptions that occur along the HPG and the HPA axes, and the marked inhibitory effect of the carcinogen on melatonin secretion. The possible relationships between the neuroendocrine disruptions, which essentially consist in an increased pre-ovulatory secretion of 17β-estradiol and prolactin, associated with a marked reduction of melatonin secretion, and the decrease in gene expression of the receptors for aryl-hydrocarbons receptor (AhR) and 17β-estradiol (ERα; ERβ) are also discussed. Polycyclic Aromatic Hydrocarbons influence promotion of breast tumorigenesis. Dimethylbenz(a)anthracene (DMBA) alters neuroendocrine axes and melatonin secretion. DMBA modulates the activity of aryl hydrocarbon and 17β-estradiol receptors.
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Key Words
- ACTH, Adrenocorticotropic hormone
- ARNT, AhR nuclear translocator
- AhR, Aryl hydrocarbon Receptor
- CRH, Corticotropin releasing hormone
- CYP, Cytochromes P450
- DMBA, Dimethylbenz(a)anthracene
- Dimethylbenz(a)anthracene
- E2, 17β-estradiol
- ERα and ERβ, Estrogen receptor
- FSH, Folliculo-Stimulating Hormone
- Female rat
- GnRH, Gonadotropin-Releasing Hormone
- HPA, Hypothalamo-Pituitary-Adrenal
- HPG, Hypothalamo-Pituitary-Gonadal
- LH, Luteinizing hormone
- Mammary cancer
- Neuroendocrine disruption
- PAHs, Polycyclic Aromatic Hydrocarbons
- PRL, Prolactin
- SD, Sprague-Dawley
- TCDD, 2,3,7,8-tetrachlorodibenzo-p-dioxin
- XRE, Xenobiotic response elements
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Affiliation(s)
- Bernard Kerdelhué
- CNRS UMR 8601, Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints Pères, 75006 Paris, France
- Corresponding author.
| | - Claude Forest
- INSERM UMR-S 1124, Université Paris Descartes, PRES Sorbonne Paris Cité, Pharmacologie Toxicologie et Signalisation Cellulaire, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints Pères, 75006 Paris, France
| | - Xavier Coumoul
- INSERM UMR-S 1124, Université Paris Descartes, PRES Sorbonne Paris Cité, Pharmacologie Toxicologie et Signalisation Cellulaire, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints Pères, 75006 Paris, France
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193
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TODOROKI K, YANAGO K, YOSHIDA H, NOHTA H, YAMAGUCHI M. Selective HPLC Analysis of Polycylic Aromatic Hydrocarbons Using Exciplex Fluorescence Phenomenon. BUNSEKI KAGAKU 2016. [DOI: 10.2116/bunsekikagaku.65.729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Keiko YANAGO
- Faculty of Pharmaceutical Sciences, Fukuoka University
| | | | - Hitoshi NOHTA
- Faculty of Pharmaceutical Sciences, Fukuoka University
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