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https://www.readbyqxmd.com/read/28711809/assessing-the-impact-of-hazardous-waste-on-children-s-health-the-exposome-paradigm
#1
D A Sarigiannis
Assessment of the health impacts related to hazardous waste is a major scientific challenge with multiple societal implications. Most studies related to associations between hazardous waste and public health do not provide established of mechanistic links between environmental exposure and disease burden, resulting in ineffective waste management options. The exposome concept comes to overhaul the nature vs. nurture paradigm and embraces a world of dynamic interactions between environmental exposures, endogenous exposures and genetic expression in humans...
July 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/28709428/a-systematic-comparison-of-statistical-methods-to-detect-interactions-in-exposome-health-associations
#2
Jose Barrera-Gómez, Lydiane Agier, Lützen Portengen, Marc Chadeau-Hyam, Lise Giorgis-Allemand, Valérie Siroux, Oliver Robinson, Jelle Vlaanderen, Juan R González, Mark Nieuwenhuijsen, Paolo Vineis, Martine Vrijheid, Roel Vermeulen, Rémy Slama, Xavier Basagaña
BACKGROUND: There is growing interest in examining the simultaneous effects of multiple exposures and, more generally, the effects of mixtures of exposures, as part of the exposome concept (being defined as the totality of human environmental exposures from conception onwards). Uncovering such combined effects is challenging owing to the large number of exposures, several of them being highly correlated. We performed a simulation study in an exposome context to compare the performance of several statistical methods that have been proposed to detect statistical interactions...
July 14, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28707677/-omics-and-endocrine-disrupting-chemicals-new-paths-forward
#3
REVIEW
Carmen Messerlian, Rosie M Martinez, Russ Hauser, Andrea A Baccarelli
The emerging field of omics - large-scale data-rich biological measurements of the genome - provides new opportunities to advance and strengthen research into endocrine-disrupting chemicals (EDCs). Although some EDCs have been associated with adverse health effects in humans, our understanding of their impact remains incomplete. Progress in the field has been primarily limited by our inability to adequately estimate and characterize exposure and identify sensitive and measurable outcomes during windows of vulnerability...
July 14, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28699353/radiation-hormesis-the-link-to-nanomolar-hydrogen-peroxide
#4
Helmut Sies, Ludwig E Feinendegen
Hydrogen peroxide is a stable product of water radiolysis, occurring at nanomolar concentration upon low dose ionizing radiation (<100 mGy). In view of the recent recognition of H2O2 as a central redox signaling molecule which, likewise, is maintained in the nanomolar range in cells, we propose a role for H2O2 in radiation hormesis. Low dose ionizing radiation is capable of utilizing known molecular redox master switches such as Nrf2/Keap1 or NF-kB/IkB to effect adaptive resistance. This leads to the hypothesis that, as a normal component of the exposome, low dose ionizing radiation mediates hormetic effects by hydrogen peroxide signaling...
July 12, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28696913/linking-physiological-parameters-to-perturbations-in-the-human-exposome-environmental-exposures-modify-blood-pressure-and-lung-function-via-inflammatory-cytokine-pathway
#5
Matthew A Stiegel, Joachim D Pleil, Jon R Sobus, Tina Stevens, Michael C Madden
Human biomonitoring is an indispensable tool for evaluating the systemic effects derived from external stressors including environmental pollutants, chemicals from consumer products, and pharmaceuticals. The aim of this study was to explore consequences of environmental exposures to diesel exhaust (DE) and ozone (O3) and ultimately to interpret these parameters from the perspective of in vitro to in vivo extrapolation. In particular, the objective was to use cytokine expression at the cellular level as a biomarker for physiological systemic responses such as blood pressure and lung function at the systemic level...
July 11, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28677960/factors-shaping-the-human-exposome-in-the-built-environment-opportunities-for-engineering-control
#6
Dongjuan Dai, Aaron J Prussin, Linsey C Marr, Peter J Vikesland, Marc A Edwards, Amy Pruden
The "exposome" is a term describing the summation of one's lifetime exposure to microbes and chemicals. Such exposures are now recognized as major drivers of human health and disease. Because humans spend ∼90% of their time indoors, the built environment exposome merits particular attention. Herein we utilize an engineering perspective to advance understanding of the factors that shape the built environment exposome and its influence on human wellness and disease, while simultaneously informing development of a framework for intentionally controlling the exposome to protect public health...
July 5, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28673401/an-exposome-perspective-early-life-events-and-immune-development-in-a-changing-world
#7
REVIEW
Harald Renz, Patrick G Holt, Michael Inouye, Alan C Logan, Susan L Prescott, Peter D Sly
Advances in metagenomics, proteomics, metabolomics, and systems biology are providing a new emphasis in research; interdisciplinary work suggests that personalized medicine is on the horizon. These advances are illuminating sophisticated interactions between human-associated microbes and the immune system. The result is a transformed view of future prevention and treatment of chronic noncommunicable diseases, including allergy. Paradigm-shifting gains in scientific knowledge are occurring at a time of rapid global environmental change, urbanization, and biodiversity losses...
July 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28673399/environmental-determinants-of-allergy-and-asthma-in-early-life
#8
REVIEW
Allison J Burbank, Amika K Sood, Matthew J Kesic, David B Peden, Michelle L Hernandez
Allergic disease prevalence has increased significantly in recent decades. Primary prevention efforts are being guided by study of the exposome (or collective environmental exposures beginning during the prenatal period) to identify modifiable factors that affect allergic disease risk. In this review we explore the evidence supporting a relationship between key components of the external exposome in the prenatal and early-life periods and their effect on atopy development focused on microbial, allergen, and air pollution exposures...
July 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28667066/redox-theory-of-aging-implications-for-health-and-disease
#9
REVIEW
Young-Mi Go, Dean P Jones
Genetics ultimately defines an individual, yet the phenotype of an adult is extensively determined by the sequence of lifelong exposures, termed the exposome. The redox theory of aging recognizes that animals evolved within an oxygen-rich environment, which created a critical redox interface between an organism and its environment. Advances in redox biology show that redox elements are present throughout metabolic and structural systems and operate as functional networks to support the genome in adaptation to environmental resources and challenges during lifespan...
July 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28621139/coupling-urinary-trihalomethanes-and-metabolomic-profiles-of-type-ii-diabetes-a-case-control-study
#10
Xanthi D Andrianou, Pantelis Charisiadis, Konstantinos C Makris
Abiding by the exposome paradigm, incorporation of external and internal exposure metrics using metabolomics tools is warranted to refine the etiology of type II diabetes (T2D). A small (n = 51) age- and sex-matched case-control study was conducted in Cyprus coupling urinary trihalomethanes (THMs) with T2D. The objectives were to (i) perform a comparative assessment of different deconvolution parameters in compound identification and (ii) evaluate the association between differentially expressed metabolites and either urinary THM or T2D status...
July 3, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28528799/a-multifactorial-obesity-model-developed-from-nationwide-public-health-exposome-data-and-modern-computational-analyses
#11
LisaAnn S Gittner, Barbara J Kilbourne, Ravi Vadapalli, Hafiz M K Khan, Michael A Langston
STATEMENT OF THE PROBLEM: Obesity is both multifactorial and multimodal, making it difficult to identify, unravel and distinguish causative and contributing factors. The lack of a clear model of aetiology hampers the design and evaluation of interventions to prevent and reduce obesity. METHODS: Using modern graph-theoretical algorithms, we are able to coalesce and analyse thousands of inter-dependent variables and interpret their putative relationships to obesity...
May 18, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28520403/integrated-strategy-for-unknown-ei-ms-identification-using-quality-control-calibration-curve-multivariate-analysis-ei-ms-spectral-database-and-retention-index-prediction
#12
Teruko Matsuo, Hiroshi Tsugawa, Hiromi Miyagawa, Eiichiro Fukusaki
Compound identification using unknown electron ionization (EI) mass spectra in gas chromatography coupled with mass spectrometry (GC-MS) is challenging in untargeted metabolomics, natural product chemistry, or exposome research. While the total count of EI-MS records included in publicly or commercially available databases is over 900 000, efficient use of this huge database has not been achieved in metabolomics. Therefore, we proposed a "four-step" strategy for the identification of biologically significant metabolites using an integrated cheminformatics approach: (i) quality control calibration curve to reduce background noise, (ii) variable selection by hypothesis testing in principal component analysis for the efficient selection of target peaks, (iii) searching the EI-MS spectral database, and (iv) retention index (RI) filtering in combination with RI predictions...
May 26, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28494612/oxidative-stress-and-inflammation-induced-by-environmental-and-psychological-stressors-a-biomarker-perspective
#13
Pietro Ghezzi, Luciano Floridi, Diana Boraschi, Antonio Cuadrado, Gina Manda, Snezana Levic, Fulvio D'Acquisto, Alice Hamilton, Toby J Athersuch, Liza Selley
SIGNIFICANCE: The environment can elicit biological responses such as oxidative stress (OS) and inflammation as a consequence of chemical, physical, or psychological changes. As population studies are essential for establishing these environment-organism interactions, biomarkers of OS or inflammation are critical in formulating mechanistic hypotheses. Recent Advances: By using examples of stress induced by various mechanisms, we focus on the biomarkers that have been used to assess OS and inflammation in these conditions...
June 15, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28494538/the-exposome-and-the-future-of-epidemiology-a-vision-and-prospect
#14
Kyoung-Nam Kim, Yun-Chul Hong
It is widely accepted that relatively small parts of chronic diseases can be explained by genetic factors alone. Although environmental exposures are important to evaluate chronic diseases comprehensively, they are not assessed with sufficient comprehensiveness and accuracy in contrast to genome. To emphasize the importance of more complete evaluation of environmental exposure, the concept of exposome, which indicates the entirety of environmental exposure from conception onwards, was introduced in 2005. Since 2010s, several epidemiological studies, such as the Human Early-Life Exposome (HELIX) project, have applied the exposome concept...
May 3, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28422130/assessment-of-metabolic-phenotypic-variability-in-children-s-urine-using-1-h-nmr-spectroscopy
#15
Léa Maitre, Chung-Ho E Lau, Esther Vizcaino, Oliver Robinson, Maribel Casas, Alexandros P Siskos, Elizabeth J Want, Toby Athersuch, Remy Slama, Martine Vrijheid, Hector C Keun, Muireann Coen
The application of metabolic phenotyping in clinical and epidemiological studies is limited by a poor understanding of inter-individual, intra-individual and temporal variability in metabolic phenotypes. Using (1)H NMR spectroscopy we characterised short-term variability in urinary metabolites measured from 20 children aged 8-9 years old. Daily spot morning, night-time and pooled (50:50 morning and night-time) urine samples across six days (18 samples per child) were analysed, and 44 metabolites quantified...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420222/how-sensors-might-help-define-the-external-exposome
#16
REVIEW
Miranda Loh, Dimosthenis Sarigiannis, Alberto Gotti, Spyros Karakitsios, Anjoeka Pronk, Eelco Kuijpers, Isabella Annesi-Maesano, Nour Baiz, Joana Madureira, Eduardo Oliveira Fernandes, Michael Jerrett, John W Cherrie
The advent of the exposome concept, the advancement of mobile technology, sensors, and the "internet of things" bring exciting opportunities to exposure science. Smartphone apps, wireless devices, the downsizing of monitoring technologies, along with lower costs for such equipment makes it possible for various aspects of exposure to be measured more easily and frequently. We discuss possibilities and lay out several criteria for using smart technologies for external exposome studies. Smart technologies are evolving quickly, and while they provide great promise for advancing exposure science, many are still in developmental stages and their use in epidemiology and risk studies must be carefully considered...
April 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28384083/assessing-the-exposome-with-external-measures-commentary-on-the-state-of-the-science-and-research-recommendations
#17
Michelle C Turner, Mark Nieuwenhuijsen, Kim Anderson, David Balshaw, Yuxia Cui, Genevieve Dunton, Jane A Hoppin, Petros Koutrakis, Michael Jerrett
The exposome comprises all environmental exposures that a person experiences from conception throughout the life course. Here we review the state of the science for assessing external exposures within the exposome. This article reviews (a) categories of exposures that can be assessed externally, (b) the current state of the science in external exposure assessment, (c) current tools available for external exposure assessment, and (d) priority research needs. We describe major scientific and technological advances that inform external assessment of the exposome, including geographic information systems; remote sensing; global positioning system and geolocation technologies; portable and personal sensing, including smartphone-based sensors and assessments; and self-reported questionnaire assessments, which increasingly rely on Internet-based platforms...
March 20, 2017: Annual Review of Public Health
https://www.readbyqxmd.com/read/28383921/icp-ms-ms-based-ionomics-a-validated-methodology-to-investigate-the-biological-variability-of-the-human-ionome
#18
Tobias Konz, Eugenia Migliavacca, Loïc Dayon, Gene Bowman, Aikaterini Oikonomidi, Julius Popp, Serge Rezzi
We here describe the development, validation and application of a quantitative methodology for the simultaneous determination of 29 elements in human serum using state-of-the-art inductively coupled plasma triple quadrupole mass spectrometry (ICP-MS/MS). This new methodology offers high-throughput elemental profiling using simple dilution of minimal quantity of serum samples. We report the outcomes of the validation procedure including limits of detection/quantification, linearity of calibration curves, precision, recovery and measurement uncertainty...
May 5, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28383342/the-children-s-health-exposure-analysis-resource-enabling-research-into-the-environmental-influences-on-children-s-health-outcomes
#19
David M Balshaw, Gwen W Collman, Kimberly A Gray, Claudia L Thompson
PURPOSE OF REVIEW: The Children's Health Exposure Analysis Resource (CHEAR) is a new infrastructure supported by the National Institute of Environmental Health Sciences to expand the ability of children's health researchers to include analysis of environmental exposures in their research and to incorporate the emerging concept of the exposome. RECENT FINDINGS: There is extensive discussion of the potential of the exposome to advance understanding of the totality of environmental influences on human health...
June 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28377395/integrated-approach-of-nutritional-and-molecular-epidemiology-mineralogical-and-chemical-pollutant-characterisation-the-protocol-of-a-cross-sectional-study-in-women
#20
Martina Barchitta, Annalisa Quattrocchi, Andrea Maugeri, Germana Barone, Paolo Mazzoleni, Alfio Catalfo, Guido De Guidi, Maria Iemmolo, Nunzio Crimi, Antonella Agodi
INTRODUCTION: Environmentally-related health and disease are the result of the exposome, the totality of a person's environmental exposures, from all sources and routes, across their lifespan. Epigenetic phenomena, including DNA methylation, can be potentially modified by environmental and lifestyle factors, and result in environmental reprogramming of the genome for exposed individuals and for future generations of offspring. OBJECTIVE: The objective of the project is to evaluate the risk of DNA hypomethylation due to air pollution, Mediterranean diet adherence, folate intake, and demographic and socioeconomic factors, in healthy women living in the metropolitan area of Catania, Italy...
April 4, 2017: BMJ Open
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