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Hu Y, Lin Y, Yang J, Wang S, Gao L, Bi Y, Wang Y. Mitochondrial dysfunction and oxidative stress in selective fetal growth restriction. Placenta 2024; 156:46-54. [PMID: 39265375 DOI: 10.1016/j.placenta.2024.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 09/02/2024] [Accepted: 09/09/2024] [Indexed: 09/14/2024]
Abstract
INTRODUCTION Placental dysfunction is the primary cause of selective fetal growth restriction (sFGR), and the specific role of mitochondria remains unclear. This study aims to elucidate mitochondrial functional defects in sFGR placentas and explore the roles of mitochondrial genomic and epigenetic alterations in its pathogenesis. METHODS The placental villi of MCDA twins with sFGR were collected and the morphology and number of mitochondria were observed by transmission electron microscopy. Meanwhile, the levels of reactive oxygen species (ROS), ATP and oxidative damage markers were assessed. Mitochondrial DNA (mtDNA) copy number detection, targeted sequencing and methylation sequencing were performed. The expression of placental cytochrome c oxidase subunit I (COX I) and mitochondrial long non-coding RNAs (lncRNAs) were evaluated by Western blotting and qPCR. RESULTS Compared with placentae from normal fetuses, pronounced mitochondrial damage within cytotrophoblast was revealed in sFGR placentae, alongside augmented mitochondrial number in syncytiotrophoblast. Enhanced oxidative stress in these placentae was evidenced by elevated markers of oxidative damage, accompanied by increased ROS production and diminished ATP generation. In sFGR placentae, a notable rise in mitochondrial copy number and one heterozygous mutation in the MT-RNR2 gene were observed, along with decreased COX Ⅰ levels, increased lncND5, lncND6, lncCyt b, and MDL1 synthesis, and decreased RMRP synthesis. DISCUSSION Findings collectively confirmed an exacerbation of oxidative stress within sFGR placentae, coinciding with mitochondrial dysfunction, compromised energy production, and ultimately the failure of compensatory mechanisms to restore energy balance, which may result from mutations in the mitochondrial genome and abnormal expression of epigenetic regulatory genes.
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Affiliation(s)
- Yucheng Hu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Yuhong Lin
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Jiawen Yang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Shan Wang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Li Gao
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Yan Bi
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
| | - Yanlin Wang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
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Fussell JC, Jauniaux E, Smith RB, Burton GJ. Ambient air pollution and adverse birth outcomes: A review of underlying mechanisms. BJOG 2024; 131:538-550. [PMID: 38037459 PMCID: PMC7615717 DOI: 10.1111/1471-0528.17727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
Epidemiological data provide varying degrees of evidence for associations between prenatal exposure to ambient air pollutants and adverse birth outcomes (suboptimal measures of fetal growth, preterm birth and stillbirth). To assess further certainty of effects, this review examines the experimental literature base to identify mechanisms by which air pollution (particulate matter, nitrogen dioxide and ozone) could cause adverse effects on the developing fetus. It likely that this environmental insult impacts multiple biological pathways important for sustaining a healthy pregnancy, depending upon the composition of the pollutant mixture and the exposure window owing to changes in physiologic maturity of the placenta, its circulations and the fetus as pregnancy ensues. The current body of evidence indicates that the placenta is a target tissue, impacted by a variety of critical processes including nitrosative/oxidative stress, inflammation, endocrine disruption, epigenetic changes, as well as vascular dysregulation of the maternal-fetal unit. All of the above can disturb placental function and, as a consequence, could contribute to compromised fetal growth as well increasing the risk of stillbirth. Furthermore, given that there is often an increased inflammatory response associated with preterm labour, inflammation is a plausible mechanism mediating the effects of air pollution on premature delivery. In the light of increased urbanisation and an ever-changing climate, both of which increase ambient air pollution and negatively affect vulnerable populations such as pregnant individuals, it is hoped that the collective evidence may contribute to decisions taken to strengthen air quality policies, reductions in exposure to air pollution and subsequent improvements in the health of those not yet born.
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Affiliation(s)
- Julia C. Fussell
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- National Institute for Health and Care Research Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - Eric Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, UK
| | - Rachel B. Smith
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- National Institute for Health and Care Research Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
- Mohn Centre for Children’s Health and Wellbeing, School of Public Health, Imperial College London, London, UK
| | - Graham J. Burton
- Department of Physiology, Development and Neuroscience, University of Cambridge
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Cedzyński M, Świerzko AS. Collectins and ficolins in neonatal health and disease. Front Immunol 2023; 14:1328658. [PMID: 38193083 PMCID: PMC10773719 DOI: 10.3389/fimmu.2023.1328658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024] Open
Abstract
The immune system starts to develop early in embryogenesis. However, at birth it is still immature and associated with high susceptibility to infection. Adaptation to extrauterine conditions requires a balance between colonization with normal flora and protection from pathogens. Infections, oxidative stress and invasive therapeutic procedures may lead to transient organ dysfunction or permanent damage and perhaps even death. Newborns are primarily protected by innate immune mechanisms. Collectins (mannose-binding lectin, collectin-10, collectin-11, collectin-12, surfactant protein A, surfactant protein D) and ficolins (ficolin-1, ficolin-2, ficolin-3) are oligomeric, collagen-related defence lectins, involved in innate immune response. In this review, we discuss the structure, specificity, genetics and role of collectins and ficolins in neonatal health and disease. Their clinical associations (protective or pathogenic influence) depend on a variety of variables, including genetic polymorphisms, gestational age, method of delivery, and maternal/environmental microflora.
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Affiliation(s)
- Maciej Cedzyński
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Łódź, Poland
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Zinia SS, Yang KH, Lee EJ, Lim MN, Kim J, Kim WJ. Effects of heavy metal exposure during pregnancy on birth outcomes. Sci Rep 2023; 13:18990. [PMID: 37923810 PMCID: PMC10624662 DOI: 10.1038/s41598-023-46271-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/30/2023] [Indexed: 11/06/2023] Open
Abstract
Exposure to heavy metals such as lead, cadmium, and mercury poses serious health risks to pregnant women because of their high toxicity. In this study, we investigated the associations of heavy metal exposure with birth outcomes of Korean infants. Data of 5,215 women between 2015 and 2019 were analyzed. This study was part of the Korean Children's Environmental Health (Ko-CHENS) study. Linear regression and logistic regression analyses were used to examine effects of concentrations of lead, cadmium, and mercury on birth weight, small for gestational age, and large for gestational age after adjusting for maternal age groups, parity, infant sex, education, income, smoking, drinking, body mass index, stillbirth, premature birth, diabetes, hypertension, and gestational diabetes. Besides adjusting for these covariates, each metal was mutually adjusted to estimate birth weight and large for gestational age status. Maternal cadmium concentrations during early pregnancy (β = - 39.96; 95% confidence interval (CI): - 63.76, - 16.17) and late pregnancy (β = - 37.24; 95% CI - 61.63, - 12.84) were significantly associated with birth weight. Cadmium levels during early pregnancy (adjusted OR = 0.637; 95% CI 0.444, 0.912) were also associated with large for gestational age status. Our findings suggest that prenatal cadmium exposure, even at a low level of exposure, is significantly associated with low birth weight.
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Affiliation(s)
- Sabrina Shafi Zinia
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ki-Hyeok Yang
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Eun Ju Lee
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Myoung-Nam Lim
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Jeeyoung Kim
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Woo Jin Kim
- Department of Internal Medicine and Environmental Health Center, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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Lin W, Lai Y, Zhuang S, Wei Q, Zhang H, Hu Q, Cheng P, Zhang M, Zhai Y, Wang Q, Han Z, Hou H. The effects of prenatal PM 2.5 oxidative potential exposure on feto-placental vascular resistance and fetal weight: A repeated-measures study. ENVIRONMENTAL RESEARCH 2023; 234:116543. [PMID: 37406720 DOI: 10.1016/j.envres.2023.116543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/27/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND Feto-placental hemodynamic deterioration is a critical contributing factor to fetal growth restriction. Whether PM2.5 oxidative potential (OP) affects feto-placental hemodynamics and what impact is on estimated fetal weight (EFW) have not been fully elucidated. We sought to evaluate the association of PM2.5 OP with EFW and to explore whether feto-placental vascular impedance hemodynamic change is a possible mediator in this association. METHODS A repeated-measures study was conducted involving sixty pregnant women with at least 26 weeks of follow-up during pregnancy in Guangzhou, China, from September 2017 to October 2018. Daily filter-based PM2.5 samples were prospectively collected from ground monitors, and estimates of OP for PM2.5 and its metallic (OPv-metal) and non-metallic constituents (OPv-nonmental) were determined by dithiothreitol assay. Ultrasound data of fetal growth and umbilical arterial resistance, including estimated fetal weight (EFW), pulsatility index, resistance index, and systolic-to-diastolic ratio, were also obtained during gestation. Generalized estimating equations and polynomial distribution lag models were applied to analyze the associations of maternal exposure to PM2.5 OP with EFW and umbilical artery indices. Causal mediation analysis was used to evaluate the mediating role of umbilical arterial resistance. RESULTS Prenatal exposure to ambient PM2.5 OP was significantly inversely associated with EFW. The magnitudes of effects of OPv-nonmetal on EFW were larger than those of OPv-metal. Significant mediation for the relationship between PM2.5-related OP and EFW by increased impedance in the umbilical artery was observed, with the estimated percent mediated ranging from 31% to 61%. The estimated percent mediated for OPv-nonmetal was higher than those for OPv-metal. CONCLUSIONS Findings suggest that increased impedance in the umbilical artery may be one of the potential mediators of the relationship between PM2.5 oxidative potential exposure and low fetal weight.
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Affiliation(s)
- Weiwei Lin
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Yuming Lai
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shuling Zhuang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Qiannan Wei
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Hedi Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Qiansheng Hu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Peng Cheng
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering, Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou, 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou, 510632, China.
| | - Manman Zhang
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering, Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou, 510632, China
| | - Yuhong Zhai
- Guangdong Ecological and Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou, 510308, China
| | - Qingqing Wang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510632, China
| | - Zhenyan Han
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510632, China
| | - Hongying Hou
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510632, China
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Chiarello DI, Ustáriz J, Marín R, Carrasco-Wong I, Farías M, Giordano A, Gallardo FS, Illanes SE, Gutiérrez J. Cellular mechanisms linking to outdoor and indoor air pollution damage during pregnancy. Front Endocrinol (Lausanne) 2023; 14:1084986. [PMID: 36875486 PMCID: PMC9974835 DOI: 10.3389/fendo.2023.1084986] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/30/2023] [Indexed: 02/17/2023] Open
Abstract
Pregnancies are a critical window period for environmental influences over the mother and the offspring. There is a growing body of evidence associating indoor and outdoor air pollution exposure to adverse pregnancy outcomes such as preterm birth and hypertensive disorders of pregnancy. Particulate matter (PM) could trigger oxi-inflammation and could also reach the placenta leading to placental damage with fetal consequences. The combination of strategies such as risk assessment, advise about risks of environmental exposures to pregnant women, together with nutritional strategies and digital solutions to monitor air quality can be effective in mitigating the effects of air pollution during pregnancy.
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Affiliation(s)
- Delia I. Chiarello
- Cellular Signaling and Differentiation Laboratory (CSDL), School of Medical Technology, Faculty of Medicine and Science, Universidad San Sebastián, Santiago, Chile
| | - Javier Ustáriz
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Reinaldo Marín
- Center for Biophysics and Biochemistry (CBB), Venezuelan Institute for Scientific Research (IVIC), Caracas, Venezuela
| | - Ivo Carrasco-Wong
- Cellular Signaling and Differentiation Laboratory (CSDL), School of Medical Technology, Faculty of Medicine and Science, Universidad San Sebastián, Santiago, Chile
| | - Marcelo Farías
- Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ady Giordano
- Inorganic Chemistry Department, Faculty of Chemistry and of Pharmacy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe S. Gallardo
- Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sebastián E. Illanes
- Reproductive Biology Program, Center for Biomedical Research and Innovation (CiiB), Universidad de los Andes, Santiago, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - Jaime Gutiérrez
- Cellular Signaling and Differentiation Laboratory (CSDL), School of Medical Technology, Faculty of Medicine and Science, Universidad San Sebastián, Santiago, Chile
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Sakali AK, Papagianni M, Bargiota A, Rasic-Markovic A, Macut D, Mastorakos G. Environmental factors affecting pregnancy outcomes. Endocrine 2023; 80:459-469. [PMID: 36729371 DOI: 10.1007/s12020-023-03307-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 01/10/2023] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Pregnancy represents a fragile period in the life of a woman, vulnerable to hazardous environmental substances which might affect maternal and fetal metabolism. The possible influence of environmental factors, including endocrine disrupting chemicals (EDCs), upon the mother and the fetus before and/or during pregnancy might be associated directly and/or indirectly to deleterious pregnancy outcomes. Because the existence of such associations would be, to our view, of major importance to the scientific community, their investigation is the scope of this critical review. METHODS This critical review includes in vivo animal and human studies regarding the role of environmental factors, including EDCs, on pregnancy outcomes complying with the SANRA (a scale for the quality assessment of narrative review articles) questions for narrative reviews. Studies were identified by searching the MEDLINE (PubMed and PubMed Central), the Cochrane library and the Google Scholar databases till October 2022 with the combinations of the appropriate key words (detailed environmental factors including EDCs AND detailed negative pregnancy outcomes) as well as by scanning references from already included articles and relevant reviews manually. Because environmental factors and EDCs have been associated to epigenetic alterations, special care has been given to EDC-induced transgenerational effects on pregnancy outcomes. RESULTS The existing evidence suggests positive associations between specific environmental factors and negative pregnancy outcomes such as ectopic pregnancies, pregnancy losses, gestational diabetes, hypertensive disorders of pregnancy, preterm births, birth defects, intrauterine growth restriction, and small or large for gestational age babies. CONCLUSION Environmental factors and EDCs may have a catalytic effect on the course and the outcomes of pregnancy.
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Affiliation(s)
- Anastasia-Konstantina Sakali
- Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, University of Thessaly, Larissa, Greece
| | - Maria Papagianni
- Department of Nutrition and Dietetics, School of Physical Education and Sport Science and Dietetics, University of Thessaly, Trikala, Greece
- Endocrine Unit, 3rd Department of Pediatrics, Hippokration Hospital of Thessaloniki, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandra Bargiota
- Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, University of Thessaly, Larissa, Greece
| | - Aleksandra Rasic-Markovic
- Institute of Medical Physiology, Faculty of Medicine, University of Belgrade, Visegradska 26, 11000, Belgrade, Serbia
| | - Djuro Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - George Mastorakos
- Unit of Endocrinology, Diabetes Mellitus and Metabolism, Aretaieion Hospital, Athens Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Shi H, Li B, Gao H, He H, Wu Z, Magdaloud J, Wang H, Chen L. Intrauterine programming of cartilaginous 11β-HSD2 induced by corticosterone and caffeine mediated susceptibility to adult osteoarthritis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 239:113624. [PMID: 35588619 DOI: 10.1016/j.ecoenv.2022.113624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
Our previous study reported that prenatal caffeine exposure (PCE) could induce chondrodysplasia and increase the susceptibility to osteoarthritis in offspring rats. However, the potential mechanisms and initiating factors remain unknown. This study aims to investigate whether 11β-HSD2, a glucocorticoid-metabolizing enzyme, is involved in the susceptibility of osteoarthritis induced by PCE and to further explore its potential mechanisms and initiating factors. Firstly, we found that PCE reduced cartilage matrix synthesis (aggrecan/Col2a1 expression) in male adult offspring rats and exhibited an osteoarthritis phenotype following chronic stress, which was associated with persistently reduced H3K9ac and H3K27ac levels at the promoter of 11β-HSD2 as well as its expression in the cartilage from fetus to adulthood. The expression of 11β-HSD2, aggrecan and Col2a1 were all decreased by corticosterone in the fetal chondrocytes, while overexpression of 11β-HSD2 could partially alleviate the decrease of matrix synthesis induced by corticosterone in vitro. Furthermore, the glucocorticoid receptor (GR) activated by glucocorticoids directly bonded to the promoter region of 11β-HSD2 to inhibit its expression. Meanwhile, the activated GR reduced the H3K9ac and H3K27ac levels of 11β-HSD2 by recruiting HDAC4 and promoting GR-HDAC4 protein interaction to inhibit the 11β-HSD2 expression. Moreover, caffeine could reduce the expression of 11β-HSD2 by inhibiting the cAMP/PKA signaling pathway but without reducing the H3K9ac and H3K27ac levels of 11β-HSD2, thereby synergistically enhancing the corticosterone effect. In conclusion, the persistently reduced H3K9ac and H3K27ac levels of 11β-HSD2 from fetus to adulthood mediated the inhibition of cartilage matrix synthesis and the increased susceptibility to osteoarthritis. This epigenetic programming change in utero was induced by glucocorticoids with synergistic effect of caffeine.
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Affiliation(s)
- Huasong Shi
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Bin Li
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China
| | - Hui Gao
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Hangyuan He
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Zhixin Wu
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | | | - Hui Wang
- Department of Pharmacology, Wuhan University Taikang Medical School (School of Basic Medical Sciences), Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
| | - Liaobin Chen
- Division of Joint Surgery and Sports Medicine, Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
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Iakovou E, Kourti M. A Comprehensive Overview of the Complex Role of Oxidative Stress in Aging, The Contributing Environmental Stressors and Emerging Antioxidant Therapeutic Interventions. Front Aging Neurosci 2022; 14:827900. [PMID: 35769600 PMCID: PMC9234325 DOI: 10.3389/fnagi.2022.827900] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 05/10/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Aging is a normal, inevitable, irreversible, and progressive process which is driven by internal and external factors. Oxidative stress, that is the imbalance between prooxidant and antioxidant molecules favoring the first, plays a key role in the pathophysiology of aging and comprises one of the molecular mechanisms underlying age-related diseases. However, the oxidative stress theory of aging has not been successfully proven in all animal models studying lifespan, meaning that altering oxidative stress/antioxidant defense systems did not always lead to a prolonged lifespan, as expected. On the other hand, animal models of age-related pathological phenotypes showed a well-correlated relationship with the levels of prooxidant molecules. Therefore, it seems that oxidative stress plays a more complicated role than the one once believed and this role might be affected by the environment of each organism. Environmental factors such as UV radiation, air pollution, and an unbalanced diet, have also been implicated in the pathophysiology of aging and seem to initiate this process more rapidly and even at younger ages. Aim The purpose of this review is to elucidate the role of oxidative stress in the physiology of aging and the effect of certain environmental factors in initiating and sustaining this process. Understanding the pathophysiology of aging will contribute to the development of strategies to postpone this phenomenon. In addition, recent studies investigating ways to alter the antioxidant defense mechanisms in order to prevent aging will be presented. Conclusions Careful exposure to harmful environmental factors and the use of antioxidant supplements could potentially affect the biological processes driving aging and slow down the development of age-related diseases. Maybe a prolonged lifespan could not be achieved by this strategy alone, but a longer healthspan could also be a favorable target.
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Affiliation(s)
- Evripides Iakovou
- Department of Life Sciences, European University Cyprus, Nicosia, Cyprus
| | - Malamati Kourti
- Department of Life Sciences, European University Cyprus, Nicosia, Cyprus
- Angiogenesis and Cancer Drug Discovery Group, Basic and Translational Cancer Research Center, Department of Life Sciences, European University Cyprus, Nicosia, Cyprus
- *Correspondence: Malamati Kourti
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Xiao H, Wu Z, Li B, Shangguan Y, Stoltz JF, Magdalou J, Chen L, Wang H. The low-expression programming of 11β-HSD2 mediates osteoporosis susceptibility induced by prenatal caffeine exposure in male offspring rats. Br J Pharmacol 2020; 177:4683-4700. [PMID: 32757222 DOI: 10.1111/bph.15225] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/12/2020] [Accepted: 07/23/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Prenatal caffeine exposure (PCE) can cause developmental toxicity of long bones in offspring, but the long-term effects and the underlying mechanism have not been fully clarified. Here, we investigated the effects of PCE peak bone mass accumulation and osteoporosis susceptibility in offspring and its intrauterine programming mechanism. EXPERIMENTAL APPROACH Pregnant Wistar rats were administrated intragastrically with saline or caffeine (120 mg·kg-1 ·day-1 ) on gestational days 9-20. The serum and bone samples were collected from the fetal and postnatal offspring for bone mass, genes expression and corticosterone analysis. Then, rat bone marrow mesenchymal stem cells (BMSCs) were treated with corticosterone in vitro to confirm the molecular mechanism. KEY RESULTS PCE caused fetal bone dysplasia in male and female offspring. In adulthood, PCE reduced peak bone mass and increased osteoporosis susceptibility in male offspring but not in females. Meanwhile, PCE only decreased the H3K9ac and expression levels of 11β-hydroxysteroid dehydrogenase 2 (11β-HSD2) before and after birth in the male offspring but not in the females. Moreover, the high level of corticosterone induced by PCE down-regulated the H3K9ac and expression levels of 11β-HSD2 through promoting glucocorticoid receptor (GR; NR3C1) into the nucleus of bone marrow mesenchymal stem cells (BMSCs) and recruiting histone deacetylase 11 (HDAC11) binding to 11β-HSD2 promoter region, which further enhanced the effect of corticosterone on suppressing osteogenic function of BMSCs. CONCLUSION AND IMPLICATIONS PCE caused osteoporosis susceptibility in male adult offspring, which attributed to the low-functional programming of 11β-HSD2 induced by corticosterone via GR/HDAC11 signalling.
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Affiliation(s)
- Hao Xiao
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhixin Wu
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bin Li
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yangfan Shangguan
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | | | | | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
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Hu W, Wang G, He B, Hu S, Luo H, Wen Y, Chen L, Wang H. Effects of prenatal nicotine exposure on hepatic glucose and lipid metabolism in offspring rats and its hereditability. Toxicology 2020; 432:152378. [PMID: 31972234 DOI: 10.1016/j.tox.2020.152378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/26/2019] [Accepted: 01/18/2020] [Indexed: 12/18/2022]
Abstract
Prenatal nicotine exposure (PNE) could induce an increased susceptibility to multiple chronic diseases in adult offspring, that mainly caused by intrauterine maternal glucocorticoid (GC) over-exposure. We investigated the changes and inheritability of hepatic glucose and lipid metabolism caused by PNE, to decipher the possible intrauterine programming mechanism. Pregnant Wistar rats were administered subcutaneously with 2 mg/kg·d nicotine from gestational day (GD) 9∼20, and second-generation (F2) were set according to the mating between control females and PNE males. The results showed that serum phenotypes and hepatic enzymes of glucose and lipid metabolism were lower in F1 fetal rats of PNE but higher in the F1 adult rats. Meanwhile, the activated states of hepatic glucocorticoid-activation system, including type 1 and type 2 11β-hydroxysteroid dehydrogenases (Hsd11b1/2), nuclear receptor subfamily 3, group C, member 1 (Nr3c1) and CCAAT enhancer binding protein α (Cebpa), were positively correlated with serum corticosterone levels but negatively correlated with the histone acetylation (H3K27ac) and expression levels of insulin-like growth factor 1 (Igf1) before and after birth. Furthermore, serum phenotypes and hepatic enzymes of glucose and lipid metabolism were lower in both F2 fetal and adult rats of PNE, which were consistent with the hepatic changes of GC-IGF1 axis and the glucocorticoid-activation system. In conclusion, PNE could lead to inheritable changes of hepatic glucose and lipid metabolism, which are related to the intrauterine programming of GC-IGF1 axis induced by the glucocorticoid-activation system.
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Affiliation(s)
- Wen Hu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Guihua Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Bo He
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Shuwei Hu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Hanwen Luo
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yinxian Wen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
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Saenen ND, Martens DS, Neven KY, Alfano R, Bové H, Janssen BG, Roels HA, Plusquin M, Vrijens K, Nawrot TS. Air pollution-induced placental alterations: an interplay of oxidative stress, epigenetics, and the aging phenotype? Clin Epigenetics 2019; 11:124. [PMID: 31530287 PMCID: PMC6749657 DOI: 10.1186/s13148-019-0688-z] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 05/27/2019] [Indexed: 01/04/2023] Open
Abstract
According to the "Developmental Origins of Health and Disease" (DOHaD) concept, the early-life environment is a critical period for fetal programming. Given the epidemiological evidence that air pollution exposure during pregnancy adversely affects newborn outcomes such as birth weight and preterm birth, there is a need to pay attention to underlying modes of action to better understand not only these air pollution-induced early health effects but also its later-life consequences. In this review, we give an overview of air pollution-induced placental molecular alterations observed in the ENVIRONAGE birth cohort and evaluate the existing evidence. In general, we showed that prenatal exposure to air pollution is associated with nitrosative stress and epigenetic alterations in the placenta. Adversely affected CpG targets were involved in cellular processes including DNA repair, circadian rhythm, and energy metabolism. For miRNA expression, specific air pollution exposure windows were associated with altered miR-20a, miR-21, miR-146a, and miR-222 expression. Early-life aging markers including telomere length and mitochondrial DNA content are associated with air pollution exposure during pregnancy. Previously, we proposed the air pollution-induced telomere-mitochondrial aging hypothesis with a direct link between telomeres and mitochondria. Here, we extend this view with a potential co-interaction of different biological mechanisms on the level of placental oxidative stress, epigenetics, aging, and energy metabolism. Investigating the placenta is an opportunity for future research as it may help to understand the fundamental biology underpinning the DOHaD concept through the interactions between the underlying modes of action, prenatal environment, and disease risk in later life. To prevent lasting consequences from early-life exposures of air pollution, policy makers should get a basic understanding of biomolecular consequences and transgenerational risks.
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Affiliation(s)
- N. D. Saenen
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - D. S. Martens
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - K. Y. Neven
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - R. Alfano
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - H. Bové
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - B. G. Janssen
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - H. A. Roels
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - M. Plusquin
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - K. Vrijens
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - T. S. Nawrot
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
- Department of Public Health and Primary Care, Leuven University, Leuven, Belgium
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Luyten LJ, Saenen ND, Janssen BG, Vrijens K, Plusquin M, Roels HA, Debacq-Chainiaux F, Nawrot TS. Air pollution and the fetal origin of disease: A systematic review of the molecular signatures of air pollution exposure in human placenta. ENVIRONMENTAL RESEARCH 2018; 166:310-323. [PMID: 29908461 DOI: 10.1016/j.envres.2018.03.025] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 05/24/2023]
Abstract
BACKGROUND Fetal development is a crucial window of susceptibility in which exposure-related alterations can be induced on the molecular level, leading to potential changes in metabolism and development. The placenta serves as a gatekeeper between mother and fetus, and is in contact with environmental stressors throughout pregnancy. This makes the placenta as a temporary organ an informative non-invasive matrix suitable to investigate omics-related aberrations in association with in utero exposures such as ambient air pollution. OBJECTIVES To summarize and discuss the current evidence and define the gaps of knowledge concerning human placental -omics markers in association with prenatal exposure to ambient air pollution. METHODS Two investigators independently searched the PubMed, ScienceDirect, and Scopus databases to identify all studies published until January 2017 with an emphasis on epidemiological research on prenatal exposure to ambient air pollution and the effect on placental -omics signatures. RESULTS From the initial 386 articles, 25 were retained following an a priori set inclusion and exclusion criteria. We identified eleven studies on the genome, two on the transcriptome, five on the epigenome, five on the proteome category, one study with both genomic and proteomic topics, and one study with both genomic and transcriptomic topics. Six studies discussed the triple relationship between exposure to air pollution during pregnancy, the associated placental -omics marker(s), and the potential effect on disease development later in life. So far, no metabolomic or exposomic data discussing associations between the placenta and prenatal exposure to air pollution have been published. CONCLUSIONS Integration of placental biomarkers in an environmental epidemiological context enables researchers to address fundamental questions essential in unraveling the fetal origin of disease and helps to better define the pregnancy exposome of air pollution.
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Affiliation(s)
- Leen J Luyten
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium; Unité de Recherche en Biologie Cellulaire (URBC) - Namur Research Institute for Life Sciences (Narilis), University of Namur, Belgium
| | - Nelly D Saenen
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Bram G Janssen
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Karen Vrijens
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Michelle Plusquin
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Harry A Roels
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium; Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Florence Debacq-Chainiaux
- Unité de Recherche en Biologie Cellulaire (URBC) - Namur Research Institute for Life Sciences (Narilis), University of Namur, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium; Department of Public Health & Primary Care, Occupational and Environmental Medicine, Leuven University (KULeuven), Leuven, Belgium.
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Anderson SM, Naidoo RN, Ramkaran P, Phulukdaree A, Muttoo S, Asharam K, Chuturgoon AA. The Effect of Nitric Oxide Pollution on Oxidative Stress in Pregnant Women Living in Durban, South Africa. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 74:228-239. [PMID: 29063946 DOI: 10.1007/s00244-017-0465-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
The purpose of the study was to evaluate the effect nitric oxide (NO x ) pollution had on maternal serum 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-OHdG) levels and neonatal outcomes in pregnant women living in Durban, South Africa (SA). Women, in their third trimester with singleton pregnancies, were recruited from the heavily industrialised south (n = 225) and less industrialised north (n = 152). Biomarker levels of serum 8-OHdG concentrations were analysed, and the women were genotyped for glutathione-S-transferases pi 1 (GSTP1) and glutathione-S-transferases mu 1 (GSTM1) polymorphisms. The level of NO x pollution in the two regions was determined by using land use regression modelling. The serum 8-OHdG was shown to correlate significantly with NO x levels; this relationship was strengthened in the south (p < 0.05). This relationship was still observed after adjusting for maternal characteristics. GSTP1 was significantly associated with the south region, where the variant (AG+GG) genotype was associated with increased 8-OHdG levels as a result of NO x exposure (p < 0.05). GSTM1 null genotype was associated with a positive correlation between NO x and 8-OHdG levels (p < 0.05). NO x levels were found marginally to reduce gestational age (p < 0.05) with mothers carrying male neonates. Variant GSTP1 and living in the north were factors that contributed to gestational age reduction (p < 0.05). Our study demonstrated that NO x exposure resulted in increased 8-OHdG levels in pregnant women living in Durban, SA, which led to gestational age reduction. The GSTP1 variant increased susceptibility of individuals to harmful effects of NO x .
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Affiliation(s)
- Samantha M Anderson
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Third Floor, George Campbell Building, Howard Campus, King George V Avenue, Durban, 4041, South Africa
| | - Rajen N Naidoo
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Prithiksha Ramkaran
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Third Floor, George Campbell Building, Howard Campus, King George V Avenue, Durban, 4041, South Africa
| | - Alisa Phulukdaree
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Third Floor, George Campbell Building, Howard Campus, King George V Avenue, Durban, 4041, South Africa
| | - Sheena Muttoo
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Kareshma Asharam
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Anil A Chuturgoon
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Third Floor, George Campbell Building, Howard Campus, King George V Avenue, Durban, 4041, South Africa.
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15
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Huang L, Luo Y, Wen X, He YH, Ding P, Xie C, Liu T, Yuan SX, Jia DQ, Chen WQ. Gene-gene-environment interactions of prenatal exposed to environmental tobacco smoke, CYP1A1 and GSTs polymorphisms on full-term low birth weight: relationship of maternal passive smoking, gene polymorphisms, and FT-LBW. J Matern Fetal Neonatal Med 2018; 32:2200-2208. [PMID: 29338478 DOI: 10.1080/14767058.2018.1429394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To examine the interaction effects of prenatal exposed to environmental tobacco smoke (ETS) and genotypes of cytochrome P4501A1 (CYP1A1), glutathione S-transferases (GSTs) on the risk of full-term low birth weight (FT-LBW). STUDY DESIGN We conducted a case-control study among pregnant women at two Women and Children's Hospitals in Guangdong, China (n = 910). Information was collected through interview, medical records review, and blood lab tests. Maternal selfreport and serum cotinine concentration were combined to define prenatal exposed to ETS. Logistic regression approach was applied for statistical analysis. RESULTS Our results showed that regardless of genotypes, prenatal exposed to ETS significantly increased the risk of FT-LBW. Then, two-way interactions showed increased prevalence of FT-LBW in prenatal exposed to ETS mothers with the CYP1A1 variant genotype (MspI "CC"), or with GSTT1-null genotype. Furthermore, three-way interactions showed that women with CYP1A1 variant (MspI "TC" or BsrDI "AG") genotypes and GSTT1 "null" genotype had higher risk to give birth of FT-LBW. Additionally, among nonexposed ETS mothers, genotype did not independently confer adverse effects on FT-LBW. CONCLUSIONS Our results revealed that prenatal exposed to ETS is independently associated with FT-LBW while gene polymorphisms of CYP1A1 and GSTs merely play modified roles in this process. This study extends understanding of three-way interaction, and stresses the need to tobacco control toward pregnant women for better pregnant outcomes.
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Affiliation(s)
- Lihua Huang
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Yijuan Luo
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China.,b Shenzhen Center for Disease Control and Prevention , Shenzhen , China
| | - Xiaozhong Wen
- c Department of Pediatrics, Division of Behavioral Medicine , School of Medicine and Biomedical Sciences, State University of New York at Buffalo , Buffalo , NY , USA.,d Department of Social and Preventive Medicine , School of Public Health and Health Professions, State University of New York at Buffalo , Buffalo , NY , USA
| | - Yan-Hui He
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Peng Ding
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Chuanbo Xie
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Tao Liu
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China
| | - Shi-Xin Yuan
- e Shenzhen Women and Children's Hospital , Shenzhen , China
| | - De-Qin Jia
- f Foshan Women and Children's Hospital , Foshan , China
| | - Wei-Qing Chen
- a Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health , School of Public Health, Sun Yat-Sen University , Guangzhou , China.,g Department of Information Management , Xinhua College, Sun Yat-Sen University , Guangzhou , China
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Fernández D, Sram RJ, Dostal M, Pastorkova A, Gmuender H, Choi H. Modeling Unobserved Heterogeneity in Susceptibility to Ambient Benzo[a]pyrene Concentration among Children with Allergic Asthma Using an Unsupervised Learning Algorithm. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E106. [PMID: 29320438 PMCID: PMC5800205 DOI: 10.3390/ijerph15010106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 12/23/2022]
Abstract
Current studies of gene × air pollution interaction typically seek to identify unknown heritability of common complex illnesses arising from variability in the host's susceptibility to environmental pollutants of interest. Accordingly, a single component generalized linear models are often used to model the risk posed by an environmental exposure variable of interest in relation to a priori determined DNA variants. However, reducing the phenotypic heterogeneity may further optimize such approach, primarily represented by the modeled DNA variants. Here, we reduce phenotypic heterogeneity of asthma severity, and also identify single nucleotide polymorphisms (SNP) associated with phenotype subgroups. Specifically, we first apply an unsupervised learning algorithm method and a non-parametric regression to find a biclustering structure of children according to their allergy and asthma severity. We then identify a set of SNPs most closely correlated with each sub-group. We subsequently fit a logistic regression model for each group against the healthy controls using benzo[a]pyrene (B[a]P) as a representative airborne carcinogen. Application of such approach in a case-control data set shows that SNP clustering may help to partly explain heterogeneity in children's asthma susceptibility in relation to ambient B[a]P concentration with greater efficiency.
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Affiliation(s)
- Daniel Fernández
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, CIBERSAM, Dr. Antoni Pujadas, 42, Sant Boi de Llobregat, 08830 Barcelona, Spain.
- School of Mathematics and Statistics, Victoria University of Wellington, Wellington 6140, New Zealand.
| | - Radim J Sram
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Miroslav Dostal
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Anna Pastorkova
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Hans Gmuender
- Genedata AG, Margarethenstrasse 38, CH-4053 Basel, Switzerland.
| | - Hyunok Choi
- Departments of Environmental Health Sciences, Epidemiology, and Biostatistics State University of New York at Albany School of Public Health, Rensselaer, NY 12144, USA.
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Choi H, Tabashidze N, Rossner P, Dostal M, Pastorkova A, Kong SW, Gmuender H, Sram RJ. Altered vulnerability to asthma at various levels of ambient Benzo[a]Pyrene by CTLA4, STAT4 and CYP2E1 polymorphisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 231:1134-1144. [PMID: 28807506 DOI: 10.1016/j.envpol.2017.07.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Within fossil- and solid-fuel dependent geographic locations, mechanisms of air pollution-induced asthma remains unknown. In particular, sources of greater genetic susceptibility to airborne carcinogen, namely, benzo[a]pyrene (B[a]P) has never been investigated beyond that of a few well known genes. OBJECTIVES To deepen our understanding on how the genotypic variations within the candidate genes contribute to the variability in the children's susceptibility to ambient B[a]P on doctor-diagnosed asthma. METHODS Clinically confirmed asthmatic versus healthy control children (aged, 7-15) were enrolled from historically polluted and rural background regions in Czech Republic. Contemporaneous ambient B[a]P concentration was obtained from the routine monitoring network. The sputum DNA was genotyped for 95 genes. B[a]P interaction with SNPs was studied by two-stage, semi-agnostic screening of 621 SNPs. RESULTS The median B[a]P within the highly polluted urban center was 8-times higher than that in the background region (7.8 vs. 1.1 ng/m3) during the period of investigation. Within the baseline model, which considered B[a]P exposure-only, the second tertile range was associated with a significantly reduced odds (aOR = 0.28) of asthma (95% CI, 0.16 to 0.50) compared to those at the lowest range. However, the highest range of B[a]P was associated with 3.18-times greater odds of the outcome (95% CI, 1.77 to 5.71). Within the gene-environment interaction models, joint occurrence of a high B[a]P exposure range and having a high-risk genotype at CTLA4 gene (rs11571316) was associated with 9-times greater odds (95% CI, 4.56-18.36) of the asthma diagnosis. Similarly, rs11571319 at CTLA4 and a high B[a]P exposure range was associated with a 8-times greater odds (95% CI, 3.95-14.27) of asthma diagnosis. Furthermore, having TG + GG genotypes on rs1031509 near STAT4 was associated with 5-times (95% CI, 3.03-8.55) greater odds of asthma diagnosis at the highest B[a]P range, compared to the odds at the reference range. Also CYP2E1 AT + TT genotypes (rs2070673) was associated with 5-times (95% CI, 3.1-8.8) greater odds of asthma diagnosis at the highest B[a]P exposure. CONCLUSIONS The children, who jointly experience a high B[a]P exposure (6.3-8.5 ng/m3) as well as susceptible genotypes in CTLA4 (rs11571316 and rs11571319), STAT4 (rs1031509), and CYP2E1 (rs2070673), respectively, are associated with a significantly greater odds of having doctor-diagnosed asthma, compared to those with neither risk factors.
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Affiliation(s)
- Hyunok Choi
- Departments of Environmental Health Sciences, Epidemiology, and Biostatistics University at Albany School of Public Health, One University Place, Room 153, Rensselaer, NY 12144-3456, USA.
| | - Nana Tabashidze
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Pavel Rossner
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Miroslav Dostal
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Anna Pastorkova
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic
| | - Sek Won Kong
- Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
| | - Hans Gmuender
- Genedata AG, Margarethenstrasse 38, CH-4053, Basel, Switzerland.
| | - Radim J Sram
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
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18
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Wang H, Peng X, Cao F, Wang Y, Shi H, Lin S, Zhong W, Sun J. Cardiotoxicity and Mechanism of Particulate Matter 2.5 (PM2.5) Exposure in Offspring Rats During Pregnancy. Med Sci Monit 2017; 23:3890-3896. [PMID: 28801545 PMCID: PMC5565233 DOI: 10.12659/msm.903006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the cardiotoxicity and mechanism of particulate matter 2.5 (PM2.5) exposure on offspring rats during pregnancy. MATERIAL AND METHODS Wistar rats were used to establish a PM2.5 exposure animal model during pregnancy, and they were divided into a control group, a low-dose group, a middle-dose group, and a high-dose group according to PM2.5 exposure dose. The pathological changes of heart tissue, the rate of myocardial cell apoptosis, the levels of LDH, AST, and CM-KB in serum, and the difference in mitochondrial fusion genes (OPA1 and Mfn1) and mitochondrial genes (Drp1 and Fis1) were compared among groups. RESULTS The arrangement of myocardial fibers in offspring mice of PM2.5 exposure groups became disordered, the shape of some cardiomyocytes became irregular, and some staining darker nuclei appeared. The apoptotic rates of myocardium in offspring rats exposed to PM2.5 were (12.61±0.93)% in the low-dose group, (25.14±1.53)% in the middle-dose group, and (30.13±1.50)% in the high-dose group, which were all significantly higher than in the control group (9.12±0.80)% (P<0.05). The levels of LDH, AST, and CM-KB and the expression of OPA1, Mfn1, Drp1, and Fis1 in offspring mice of PM2.5 exposure groups increased with the increase of PM2.5 exposure dose, and were significantly higher than that of the control group (P<0.05). CONCLUSIONS The mitochondria of the offspring mice were damaged due to the abnormal expression of mitochondrial fusion/splicing gene by PM2.5 exposure during pregnancy, and the hearts of offspring mice were damaged due to damaged mitochondria.
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Affiliation(s)
- Hongling Wang
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Xiangwen Peng
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Fenglin Cao
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Ying Wang
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Huijie Shi
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Shuai Lin
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Weijie Zhong
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Jingxia Sun
- Department of Obstetrics, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
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Šrám RJ, Rössner P, Rössnerová A, Dostál M, Milcová A, Švecová V, Pulkrabová J, Hajšlová J, Velemínský M. Impact of Air Pollution to Genome of Newborns. Cent Eur J Public Health 2016; 24 Suppl:S40-S44. [DOI: 10.21101/cejph.a4536] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/30/2015] [Indexed: 11/15/2022]
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Ghosh R, Rossner P, Honkova K, Dostal M, Sram RJ, Hertz-Picciotto I. Air pollution and childhood bronchitis: Interaction with xenobiotic, immune regulatory and DNA repair genes. ENVIRONMENT INTERNATIONAL 2016; 87:94-100. [PMID: 26655675 DOI: 10.1016/j.envint.2015.10.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 10/05/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Gene-environment interactions have been investigated for diseases such as asthma, chronic obstructive pulmonary disease, cancer etc. but acute disease like bronchitis has rarely been studied. We investigated interactions between air pollution (polycyclic aromatic hydrocarbons (PAH) and particulate matter <2.5 μm (PM2.5)) and single nucleotide polymorphisms (SNP) in EPHX1, IL10, STAT4 and XPC genes in relation to bronchitis in children aged 0-2 years. METHODS A stratified random sample of 1133 Czech children, born between 1994 and 1998 in two districts, were followed since birth, of which 626 were genotyped. Pediatrician-diagnosed bronchitis episodes were obtained from the medical records. Central-site monitors measured air pollution exposure. We used multivariable logistic regression and estimated coefficients using generalized estimating equations. Interaction was assessed between pollutants and genes and associations in genotype-specific strata were presented. False discovery rate was used to adjust for multiple comparisons. RESULTS There were 803 episodes of bronchitis with an incidence rate of 56 per 1000 child-months. We found significant gene-environment interaction between PAH and four SNPs (EPHX1, (rs2854461), STAT4 (rs16833215), XPC (rs2228001 and rs2733532)), which became non-significant after adjusting for multiple comparisons. PM2.5 interactions with two XPC SNPs (rs2228001 and rs2733532) remained significant after accounting for multiple comparisons and those with CC alleles had a more than doubling of odds, OR=2.65 (95% CI: 1.91, 3.69) and 2.72 (95% CI: 1.95, 3.78), respectively, per 25 μg/m(3) increase in exposure. CONCLUSION The findings suggest that the DNA repair gene XPC may play an important role in the air pollution-induced pathogenesis of the inflammatory disease bronchitis.
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Affiliation(s)
- Rakesh Ghosh
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States.
| | - Pavel Rossner
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Katerina Honkova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Miroslav Dostal
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Radim J Sram
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic
| | - Irva Hertz-Picciotto
- Department of Public Health Sciences, University of California, Davis, United States
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Edwards S, Maxson P, Sandberg N, Miranda ML. Air Pollution and Pregnancy Outcomes. MOLECULAR AND INTEGRATIVE TOXICOLOGY 2015. [DOI: 10.1007/978-1-4471-6669-6_3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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22
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Møller P, Danielsen PH, Karottki DG, Jantzen K, Roursgaard M, Klingberg H, Jensen DM, Christophersen DV, Hemmingsen JG, Cao Y, Loft S. Oxidative stress and inflammation generated DNA damage by exposure to air pollution particles. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 762:133-66. [DOI: 10.1016/j.mrrev.2014.09.001] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/04/2014] [Accepted: 09/04/2014] [Indexed: 01/09/2023]
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23
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Fleischer NL, Merialdi M, van Donkelaar A, Vadillo-Ortega F, Martin RV, Betran AP, Souza JP. Outdoor air pollution, preterm birth, and low birth weight: analysis of the world health organization global survey on maternal and perinatal health. ENVIRONMENTAL HEALTH PERSPECTIVES 2014; 122:425-30. [PMID: 24508912 PMCID: PMC3984219 DOI: 10.1289/ehp.1306837] [Citation(s) in RCA: 205] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 02/04/2014] [Indexed: 05/20/2023]
Abstract
BACKGROUND Inhaling fine particles (particulate matter with diameter ≤ 2.5 μm; PM2.5) can induce oxidative stress and inflammation, and may contribute to onset of preterm labor and other adverse perinatal outcomes. OBJECTIVES We examined whether outdoor PM2.5 was associated with adverse birth outcomes among 22 countries in the World Health Organization Global Survey on Maternal and Perinatal Health from 2004 through 2008. METHODS Long-term average (2001-2006) estimates of outdoor PM2.5 were assigned to 50-km-radius circular buffers around each health clinic where births occurred. We used generalized estimating equations to determine associations between clinic-level PM2.5 levels and preterm birth and low birth weight at the individual level, adjusting for seasonality and potential confounders at individual, clinic, and country levels. Country-specific associations were also investigated. RESULTS Across all countries, adjusting for seasonality, PM2.5 was not associated with preterm birth, but was associated with low birth weight [odds ratio (OR) = 1.22; 95% CI: 1.07, 1.39 for fourth quartile of PM2.5 (> 20.2 μg/m3) compared with the first quartile (< 6.3 μg/m3)]. In China, the country with the largest PM2.5 range, preterm birth and low birth weight both were associated with the highest quartile of PM2.5 only, which suggests a possible threshold effect (OR = 2.54; CI: 1.42, 4.55 and OR = 1.99; CI: 1.06, 3.72 for preterm birth and low birth weight, respectively, for PM2.5 ≥ 36.5 μg/m3 compared with PM2.5 < 12.5 μg/m3). CONCLUSIONS Outdoor PM2.5 concentrations were associated with low birth weight but not preterm birth. In rapidly developing countries, such as China, the highest levels of air pollution may be of concern for both outcomes.
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Affiliation(s)
- Nancy L Fleischer
- University of South Carolina Arnold School of Public Health, Columbia, South Carolina, USA
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Potlukova E, Freiberger T, Limanova Z, Jiskra J, Telicka Z, Bartakova J, Springer D, Vitkova H, Trendelenburg M. Association between low levels of Mannan-binding lectin and markers of autoimmune thyroid disease in pregnancy. PLoS One 2013; 8:e81755. [PMID: 24339961 PMCID: PMC3858249 DOI: 10.1371/journal.pone.0081755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/16/2013] [Indexed: 01/22/2023] Open
Abstract
Functional deficiency of mannan-binding lectin (MBL) has been associated with adverse pregnancy outcome. Adverse events during pregnancy have also been described in women with autoimmune thyroid diseases (AITD), and thyroid hormones have been shown to influence serum levels of MBL. Therefore, the aim of this study was to analyse the impact of MBL-deficiency on the outcome of pregnancy in relation to the presence of AITD. Almost one year after delivery, we assessed serum MBL levels and MBL2-genotypes in 212 women positively screened for AITD in pregnancy. In 103 of these women, we could also measure MBL levels in frozen serum samples from the 9-12th gestational week, obtaining 96 pairs of MBL values (pregnancy vs. follow-up). As controls, 80 sera of pregnant women screened negatively for AITD were used. MBL2-genotyping was performed using multiplex PCR. Women with thyroid dysfunction and/or thyroid peroxidase antibodies (TPOAb) had lower MBL levels during pregnancy than controls, (3275 vs. 5000 ng/ml, p<0.05). The lowest levels were found in women with elevated thyroid-stimulating hormone (TSH) levels in the absence of TPOAb (2207 ng/ml; p<0.01 as compared to controls). MBL2 genotype distribution did not differ between subgroups. At a median follow-up period of 17 months (range: 3–78 months) after delivery, median MBL level had decreased further to 1923 ng/ml (p<0.0001) without significant changes in TSH. In an explorative survey, functional MBL-deficiency was neither linked to a history of spontaneous abortion, nor other obstetric complications, severe infections throughout life/pregnancy or antibiotics use in pregnancy. In conclusion, hypothyroidism during pregnancy is associated with decreased MBL levels, and the levels decreased further after delivery.
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Affiliation(s)
- Eliska Potlukova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Tomas Freiberger
- Centre for Cardiovascular Surgery and Transplantation, Molecular Genetics Laboratory, Brno, Czech Republic, and Ceitec and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zdenka Limanova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jan Jiskra
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Zdenek Telicka
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Bartakova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Drahomira Springer
- Institute of Clinical Biochemistry and Laboratory Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Hana Vitkova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Marten Trendelenburg
- Laboratory of Clinical Immunology, Department of Biomedicine, University Hospital Basel, Switzerland
- * E-mail:
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Al-Saleh I, Shinwari N, Mashhour A, Rabah A. Birth outcome measures and maternal exposure to heavy metals (lead, cadmium and mercury) in Saudi Arabian population. Int J Hyg Environ Health 2013; 217:205-18. [PMID: 23735463 DOI: 10.1016/j.ijheh.2013.04.009] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 03/30/2013] [Accepted: 04/22/2013] [Indexed: 12/27/2022]
Abstract
This cross-sectional study was conducted to assess the association between exposure to heavy metals (lead, cadmium and mercury) during pregnancy and birth outcomes in 1578 women aged 16-50 years who delivered in Al-Kharj hospital, Saudi Arabia, in 2005 and 2006. The levels of lead, cadmium and mercury were measured in umbilical cord blood, maternal blood and the placenta. Outcome variables were anthropometric measures taken at birth, along with the risk of being small-for-gestational age (SGA). We selected the 10th percentile as the cutoff for dichotomizing measures of birth outcome. Cadmium, despite its partial passage through the placenta had the most prominent effect on several measures of birth outcome. After adjustment for potential confounders, logistic regression models revealed that crown-heel length (p=0.034), the Apgar 5-minute score (p=0.004), birth weight (p=0.015) and SGA (p=0.049) were influenced by cadmium in the umbilical cord blood. Significant decreases in crown-heel length (p=0.007) and placental thickness (p=0.022) were seen with higher levels of cadmium in maternal blood. As placental cadmium increased, cord length increased (p=0.012) and placental thickness decreased (p=0.032). Only lead levels in maternal blood influenced placental thickness (p=0.011). Mercury in both umbilical cord and maternal blood was marginally associated with placental thickness and placental weight, respectively. Conversely, placental mercury levels significantly influenced head circumference (p=0.017), the Apgar 5-minute score (p=0.01) and cord length (p=0.026). The predictions of these models were further assessed with the area under the curve (AUC) of the receiver operating curves (ROCs), which were modest (larger than 0.5 and smaller than 0.7). The independence of gestational age or preterm births on the observed effect of metals on some measures of birth outcome, suggested detrimental effects of exposure on fetal development. The magnitude of the estimated effects might not necessarily be of clinical significance for infants but may have a considerable public-health relevance given the high prevalence of exposure to heavy metals. Further research should be conducted to confirm these findings and to evaluate their long-term risks, if any.
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Affiliation(s)
- Iman Al-Saleh
- Environmental Health Section, Biological & Medical Research Department, King Faisal Specialist Hospital & Research Centre, PO Box 3354, Riyadh, Saudi Arabia.
| | - Neptune Shinwari
- Environmental Health Section, Biological & Medical Research Department, King Faisal Specialist Hospital & Research Centre, PO Box 3354, Riyadh, Saudi Arabia
| | - Abdullah Mashhour
- Environmental Health Section, Biological & Medical Research Department, King Faisal Specialist Hospital & Research Centre, PO Box 3354, Riyadh, Saudi Arabia
| | - Abdullah Rabah
- Department of Pediatrics, King Khalid Hospital-Al-Kharj, Saudi Arabia
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Sram RJ, Binkova B, Dostal M, Merkerova-Dostalova M, Libalova H, Milcova A, Rossner P, Rossnerova A, Schmuczerova J, Svecova V, Topinka J, Votavova H. Health impact of air pollution to children. Int J Hyg Environ Health 2013; 216:533-40. [PMID: 23312845 DOI: 10.1016/j.ijheh.2012.12.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 11/23/2012] [Accepted: 12/06/2012] [Indexed: 12/09/2022]
Abstract
Health impact of air pollution to children was studied over the last twenty years in heavily polluted parts of the Czech Republic during. The research program (Teplice Program) analyzed these effects in the polluted district Teplice (North Bohemia) and control district Prachatice (Southern Bohemia). Study of pregnancy outcomes for newborns delivered between 1994 and 1998 demonstrated that increase in intrauterine growth retardation (IUGR) was associated with PM10 and c-PAHs exposure (carcinogenic polycyclic aromatic hydrocarbons) in the first month of gestation. Morbidity was followed in the cohort of newborns (N=1492) up to the age of 10years. Coal combustion in homes was associated with increased incidence of lower respiratory track illness and impaired early childhood skeletal growth up to the age of 3years. In preschool children, we observed the effect of increased concentrations of PM2.5 and PAHs on development of bronchitis. The Northern Moravia Region (Silesia) is characterized by high concentrations of c-PAHs due to industrial air pollution. Exposure to B[a]P (benzo[a]pyrene) in Ostrava-Radvanice is the highest in the EU. Children from this part of the city of Ostrava suffered higher incidence of acute respiratory diseases in the first year of life. Gene expression profiles in leukocytes of asthmatic children compared to children without asthma were evaluated in groups from Ostrava-Radvanice and Prachatice. The results suggest the distinct molecular phenotype of asthma bronchiale in children living in polluted Ostrava region compared to children living in Prachatice. The effect of exposure to air pollution to biomarkers in newborns was analyzed in Prague vs. Ceske Budejovice, two locations with different levels of pollution in winter season. B[a]P concentrations were higher in Ceske Budejovice. DNA adducts and micronuclei were also elevated in cord blood in Ceske Budejovice in comparison to Prague. Study of gene expression profiles in the cord blood showed differential expression of 104 genes. Specifically, biological processes related to immune and defense response were down-regulated in Ceske Budejovice. Our studies demonstrate that air pollution significantly affect child health. Especially noticeable is the increase of respiratory morbidity. With the development of molecular epidemiology, we can further evaluate the health risk of air pollution using biomarkers.
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Affiliation(s)
- Radim J Sram
- Institute of Experimental Medicine AS CR, Prague, Czech Republic.
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27
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Danileviciute A, Grazuleviciene R, Paulauskas A, Nadisauskiene R, Nieuwenhuijsen MJ. Low level maternal smoking and infant birthweight reduction: genetic contributions of GSTT1 and GSTM1 polymorphisms. BMC Pregnancy Childbirth 2012; 12:161. [PMID: 23268570 PMCID: PMC3562502 DOI: 10.1186/1471-2393-12-161] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 12/19/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Genetic susceptibility to tobacco smoke might modify the effect of smoking on pregnancy outcomes. METHODS We conducted a case-control study of 543 women who delivered singleton live births in Kaunas (Lithuania), examining the association between low-level tobacco smoke exposure (mean: 4.8 cigarettes/day) during pregnancy, GSTT1 and GSTM1 polymorphisms and birthweight of the infant. Multiple linear-regression analysis was performed adjusting for gestational age, maternal education, family status, body mass index, blood pressure, and parity. Subsequently, we tested for the interaction effect of maternal smoking, GSTT1 and GSTM1 genes polymorphisms with birthweight by adding all the product terms in the regression models. RESULTS The findings suggested a birthweight reduction among light-smoking with the GSTT1-null genotype (-162.9 g, P = 0.041) and those with the GSTM1-null genotype (-118.7 g, P = 0.069). When a combination of these genotypes was considered, birthweight was significantly lower for infants of smoking women the carriers of the double-null genotypes (-311.2 g, P = 0.008). The interaction effect of maternal smoking, GSTM1 and GSTT1 genotypes was marginally significant on birthweight (-234.5 g, P = 0.078). Among non-smokers, genotype did not independently confer an adverse effect on infant birthweight. CONCLUSIONS The study shows the GSTT1-null genotype, either presents only one or both with GSTM1-null genotype in a single subject, have a modifying effect on birthweight among smoking women even though their smoking is low level. Our data also indicate that identification of the group of susceptible subjects should be based on both environmental exposure and gene polymorphism. Findings of this study add additional evidence on the interplay among two key GST genes and maternal smoking on birth weight of newborns.
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Affiliation(s)
- Asta Danileviciute
- Department of Environmental Sciences, Vytautas Magnus University, Donelaicio st, 58, 44248, Kaunas, Lithuania
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Backes CH, Nelin T, Gorr MW, Wold LE. Early life exposure to air pollution: how bad is it? Toxicol Lett 2012; 216:47-53. [PMID: 23164674 DOI: 10.1016/j.toxlet.2012.11.007] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 11/07/2012] [Accepted: 11/09/2012] [Indexed: 11/25/2022]
Abstract
Increasing concentrations of air pollution have been shown to contribute to an enormity of adverse health outcomes worldwide, which have been observed in clinical, epidemiological, and animal studies as well as in vitro investigations. Recently, studies have shown that air pollution can affect the developing fetus via maternal exposure, resulting in preterm birth, low birth weight, growth restriction, and potentially adverse cardiovascular and respiratory outcomes. This review will provide a summary of the harmful effects of air pollution exposure on the developing fetus and infant, and suggest potential mechanisms to limit the exposure of pregnant mothers and infants to air pollution.
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Affiliation(s)
- Carl H Backes
- Department of Pediatrics, The Ohio State University, Columbus, OH 43215, USA
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Abstract
Oxidatively damaged DNA is implicated in various diseases, including neurodegenerative disorders, cancer, diabetes, cardiovascular and inflammatory diseases as well as aging. Several methods have been developed to detect oxidatively damaged DNA. They include chromatographic techniques, the Comet assay, (32)P-postlabelling and immunochemical methods that use antibodies to detect oxidized lesions. In this review, we discuss the detection of 8-oxo-7,8-dihydro-29-deoxyguanosine (8-oxodG), the most abundant oxidized nucleoside. This lesion is frequently used as a marker of exposure to oxidants, including environmental pollutants, as well as a potential marker of disease progression. We concentrate on studies published between the years 2000 and 2011 that used enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry to detect 8-oxodG in humans, laboratory animals and in cell lines. Oxidative damage observed in these organisms resulted from disease, exposure to environmental pollutants or from in vitro treatment with various chemical and physical factors.
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Affiliation(s)
- Pavel Rossner
- Laboratory of Genetic Ecotoxicology, Institute of Experimental Medicine AS CR, Videnska 1083, 142 20 Prague, Czech Republic.
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Thurow HS, Haack R, Hartwig FP, de Oliveira IO, Dellagostin OA, Gigante DP, Horta BL, Collares T, Seixas FK. TP53 gene polymorphism: Importance to cancer, ethnicity and birth weight in a Brazilian cohort. J Biosci 2011; 36:823-31. [DOI: 10.1007/s12038-011-9147-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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