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Développement du dosage d'adduits du B(a)P à l'hémoglobine humaine et étude de la relation entre ce paramètre et l'exposition aux hydrocarbures polycycliques dans des cokeries

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Une revue de la littérature nous a conduit à comparer différentes méthodes de dosage des adduits du B(a)P à l’hémoglobine (formés in vivo) afin de sélectionner la plus performante pour une étude de la relation entre le taux d’adduits et l’intensité d’exposition aux HAP en milieu professionnel.
Les différentes étapes de la technique choisie se résument en une rupture des liens covalents entre les acides aminés et les adduits grâce à une hydrolyse acide, d’une séparation des B(a)P tétrols ainsi libérés par chromatographie en phase liquide et d’une quantification de ceux-ci par fluorimétrie. Nous avons obtenu une limite de détection de 5 fmol B(a) PT/mg Hb.
Après analyse des groupes contôlé et exposé, il semble que le dosage des adduits du B(a)P à l’hémoglobine soit une indicateur de l’absorption des HAP. Par contre, aucuen relation n’a pu être observée entre le taux d’adduits du B(a)P à l’hémoglobine et des paramètres indicateurs d’effets cytogénétiques (échanges chromatides sœurs, % high frequency cells, micro-noyaux).


Dissertation
Modifying effect of nutritional factors on benzo(a)pyrene-induced respiratory tract cancer in hamsters
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Year: 1986 Publisher: Meppel Krips Repro

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Book
Progress in drug metabolism. Volume 7
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ISBN: 0471104876 Year: 1983 Publisher: Chichester : John Wiley,


Book
Microplastics in Aquatic Environments : Occurrence, Distribution and Effects
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ISBN: 3036550488 303655047X Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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The large production and widespread daily consumption of plastic materials which began in the last century, together with the often inadequate collection and recycling systems, have made plastics and, consequently, microplastics (MPs) ubiquitous pollutants. Microplastic pollution as a global concern is confirmed by the research papers collected in this Special Issue; these papers come from 28 Universities and research institutions and are spread across ten countries on three continents. This Special Issue collected and published 11 novel contributions focusing on microplastics in aquatic environments, their occurrence and distribution, and the effects they might have on the environment and biota. As Guest Editors of this Special Issue, we were pleased to receive several papers concerning the interaction between microplastics and biota; despite a large number of peer-reviewed papers published on this research topic, there are still several gaps that need to be filled and there is concrete evidence suggesting that microplastic pollution may constitute a serious hazard to aquatic biota. The results of the contributions collected herein have helped to fill some knowledge gaps about the occurrence, distribution, and effects of microplastics on aquatic ecosystems. The outcomes clearly indicate that microplastic pollution is a serious environmental issue; the scientific community should increase its knowledge and understanding of how it could affect the environment, biota, and humans, and how it could be reduced and prevented.


Book
DNA Damage, Oxidative Stress and Related Metabolic By-Products in Cancer and Environmental Studies
Authors: --- ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Computational fluid dynamics (CFD), which uses numerical analysis to predict and model complex flow behaviors and transport processes, has become a mainstream tool in engineering process research and development. Complex chemical processes often involve coupling between dynamics at vastly different length and time scales, as well as coupling of different physical models. The multiscale and multiphysics nature of those problems calls for delicate modeling approaches. This book showcases recent contributions in this field, from the development of modeling methodology to its application in supporting the design, development, and optimization of engineering processes.


Book
Biomarkers of Environmental Toxicants
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Biomarkers of environmental toxicants are measures of exposures, some of which can serve to assess disease risk and inter-individual susceptibilities. Metabolites, protein and DNA adducts also serve to elucidate the mechanisms of the bioactivation and detoxication of reactive toxicant intermediates. Some environmental chemicals act as modulators of gene and protein activity, and induce the dysbiosis of the microbiome, which impacts the metabolome and overall health. In this Special Issue on “Biomarkers of Environmental Toxicants”, review articles and original research studies are featured, covering the latest bioanalytical, biochemical and mass spectrometry-based technologies, to monitor exposures through targeted and non-targeted methods, and mechanistic studies that examine the biological effects of environmental toxicants in cells and humans. Diverse topics, such as exposome, microbiome, DNA/protein adducts and t-RNA modifications, as well as important environment toxicants, including heavy metals, benzene, phthalates, aldehydes, glycidol, tobacco smoke and aristolochic acids, are covered. Novel analytical methods, such as protein adductomics, DNA adduct analysis in formalin-fixed paraffin-embedded tissues, site-specific mutagenesis assay and accelerator mass spectrometry, are also included. This collection provides a valuable update of the most recent biochemical and analytical tools that employ biomarkers in toxicology research, biomarker discovery, and exposure and risk assessment in population-based studies.

Keywords

Medicine --- manganese --- lead --- cadmium --- arsenic --- hair --- children --- environment --- carcinogen --- DNA adducts --- biomonitoring --- formalin-fixed paraffin-embedded tissues --- biomarker --- mass spectrometry --- human biomonitoring --- urine --- non-occupational exposure --- S-phenyl-mercapturic acid --- HPLC-MS/MS --- glycidol --- Hb adduct --- N-(2.3-dihydroxypropyl)valine --- in vivo --- cancer risk --- UPLC/MS/MS --- aristolochic acids --- food contamination --- environmental pollution --- root uptake --- aristolochic acid nephropathy --- Balkan endemic nephropathy --- chronic kidney disease --- tobacco smoke --- human carcinogen --- biomarkers --- epitranscriptomics --- tRNA modifications --- stress response mechanisms --- codon-biased translation --- phthalate --- DEHP --- human exposure --- toxicity --- reproductive --- accelerator mass spectrometry --- cavity ring down spectrophotometry --- radiocarbon --- naphthalene --- benzo[a]pyrene --- cell turnover --- triclocarban --- metastasis --- haemoglobin --- albumin --- protein adducts --- aldehydes --- genotoxicity --- cancer --- diseases --- oxidative stress --- exposure biomarkers --- high-resolution mass spectrometry --- data-dependent profiling --- derivatization --- biological fluids --- isotope labeling --- DNA lesion --- DNA damage --- shuttle vector technique --- replication block --- mutagenicity --- mutational spectrum --- mutational signature --- DNA repair --- DNA adduct bypass --- site-specific mutagenesis --- chemical exposome --- environmental monitoring --- disease --- bioinformatics --- gut microbiome --- chemical toxicity --- n/a


Book
Oxidative Stress Modulators and Functional Foods
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book “Oxidative Stress Modulators and Functional Foods” is focused on the antioxidant role of natural products, involving their ability to modulate oxidative stress and/or reverse disease studied both in vitro and in animal models. Additionally, the molecular mechanisms of these actions and the modulation of signalling pathways related to inflammation, apoptosis, and survival response in the redox system by natural products are included.

Keywords

Medicine --- Pharmaceutical industries --- high sugar-fat diet --- obesity --- β-adrenergic system --- cardiac dysfunction --- lycopene --- tomato-oleoresin --- coumarin --- pteryxin --- HO-1 --- Nrf2 --- oxidative stress --- Peucedanum japonicum Thunb --- RAW264.7 cells --- polysaccharide --- jujube pomace --- structural analysis --- antioxidant activity --- epigallocatechin-gallate --- liposomes --- diabetes mellitus --- antioxidant --- dendrimer --- electronic effect --- hydrogen atom transfer (HAT) --- single electron transfer-proton transfer (SET-PT) --- sequential proton loss electron transfer (SPLET) --- DPPH --- ultraviolet B --- gradient ethanol precipitation --- fucoidan --- HaCaT keratinocyte --- heme oxygenase-1 --- nutricosmetic --- folic acid --- nitric oxide --- neural tube defects --- NOR3 --- ESR --- LC/MS --- Benzo[a]pyrene --- myricetin --- BPDE-DNA adduct --- phase detoxifying enzyme --- Quamoclit angulata --- type 2 diabetes --- kidney damage --- inflammation --- apoptosis --- fibrosis --- Sargassum horneri --- (–)-loliolide --- fine dust --- HaCaT --- bilberry --- lingonberry --- polyphenols --- antioxidant compounds --- antimicrobial activity --- antimutagenicity --- altitude variations --- mitochondria --- neurodegeneration --- nutrient --- QM-ORSA --- antioxidative mechanisms --- reaction rate constants --- physiological conditions --- zebrafish embryo --- in vivo model --- antioxidant effect --- cudratrixanthone O --- reactive oxygen species --- nuclear transcription factor erythroid-2-like factor 2 --- hemeoxygenase-1 --- n/a --- (-)-loliolide


Book
DNA Damage, Oxidative Stress and Related Metabolic By-Products in Cancer and Environmental Studies
Authors: --- ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Computational fluid dynamics (CFD), which uses numerical analysis to predict and model complex flow behaviors and transport processes, has become a mainstream tool in engineering process research and development. Complex chemical processes often involve coupling between dynamics at vastly different length and time scales, as well as coupling of different physical models. The multiscale and multiphysics nature of those problems calls for delicate modeling approaches. This book showcases recent contributions in this field, from the development of modeling methodology to its application in supporting the design, development, and optimization of engineering processes.


Book
Oxidative Stress Modulators and Functional Foods
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book “Oxidative Stress Modulators and Functional Foods” is focused on the antioxidant role of natural products, involving their ability to modulate oxidative stress and/or reverse disease studied both in vitro and in animal models. Additionally, the molecular mechanisms of these actions and the modulation of signalling pathways related to inflammation, apoptosis, and survival response in the redox system by natural products are included.

Keywords

high sugar-fat diet --- obesity --- β-adrenergic system --- cardiac dysfunction --- lycopene --- tomato-oleoresin --- coumarin --- pteryxin --- HO-1 --- Nrf2 --- oxidative stress --- Peucedanum japonicum Thunb --- RAW264.7 cells --- polysaccharide --- jujube pomace --- structural analysis --- antioxidant activity --- epigallocatechin-gallate --- liposomes --- diabetes mellitus --- antioxidant --- dendrimer --- electronic effect --- hydrogen atom transfer (HAT) --- single electron transfer-proton transfer (SET-PT) --- sequential proton loss electron transfer (SPLET) --- DPPH --- ultraviolet B --- gradient ethanol precipitation --- fucoidan --- HaCaT keratinocyte --- heme oxygenase-1 --- nutricosmetic --- folic acid --- nitric oxide --- neural tube defects --- NOR3 --- ESR --- LC/MS --- Benzo[a]pyrene --- myricetin --- BPDE-DNA adduct --- phase detoxifying enzyme --- Quamoclit angulata --- type 2 diabetes --- kidney damage --- inflammation --- apoptosis --- fibrosis --- Sargassum horneri --- (–)-loliolide --- fine dust --- HaCaT --- bilberry --- lingonberry --- polyphenols --- antioxidant compounds --- antimicrobial activity --- antimutagenicity --- altitude variations --- mitochondria --- neurodegeneration --- nutrient --- QM-ORSA --- antioxidative mechanisms --- reaction rate constants --- physiological conditions --- zebrafish embryo --- in vivo model --- antioxidant effect --- cudratrixanthone O --- reactive oxygen species --- nuclear transcription factor erythroid-2-like factor 2 --- hemeoxygenase-1 --- n/a --- (-)-loliolide


Book
Biomarkers of Environmental Toxicants
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Biomarkers of environmental toxicants are measures of exposures, some of which can serve to assess disease risk and inter-individual susceptibilities. Metabolites, protein and DNA adducts also serve to elucidate the mechanisms of the bioactivation and detoxication of reactive toxicant intermediates. Some environmental chemicals act as modulators of gene and protein activity, and induce the dysbiosis of the microbiome, which impacts the metabolome and overall health. In this Special Issue on “Biomarkers of Environmental Toxicants”, review articles and original research studies are featured, covering the latest bioanalytical, biochemical and mass spectrometry-based technologies, to monitor exposures through targeted and non-targeted methods, and mechanistic studies that examine the biological effects of environmental toxicants in cells and humans. Diverse topics, such as exposome, microbiome, DNA/protein adducts and t-RNA modifications, as well as important environment toxicants, including heavy metals, benzene, phthalates, aldehydes, glycidol, tobacco smoke and aristolochic acids, are covered. Novel analytical methods, such as protein adductomics, DNA adduct analysis in formalin-fixed paraffin-embedded tissues, site-specific mutagenesis assay and accelerator mass spectrometry, are also included. This collection provides a valuable update of the most recent biochemical and analytical tools that employ biomarkers in toxicology research, biomarker discovery, and exposure and risk assessment in population-based studies.

Keywords

manganese --- lead --- cadmium --- arsenic --- hair --- children --- environment --- carcinogen --- DNA adducts --- biomonitoring --- formalin-fixed paraffin-embedded tissues --- biomarker --- mass spectrometry --- human biomonitoring --- urine --- non-occupational exposure --- S-phenyl-mercapturic acid --- HPLC-MS/MS --- glycidol --- Hb adduct --- N-(2.3-dihydroxypropyl)valine --- in vivo --- cancer risk --- UPLC/MS/MS --- aristolochic acids --- food contamination --- environmental pollution --- root uptake --- aristolochic acid nephropathy --- Balkan endemic nephropathy --- chronic kidney disease --- tobacco smoke --- human carcinogen --- biomarkers --- epitranscriptomics --- tRNA modifications --- stress response mechanisms --- codon-biased translation --- phthalate --- DEHP --- human exposure --- toxicity --- reproductive --- accelerator mass spectrometry --- cavity ring down spectrophotometry --- radiocarbon --- naphthalene --- benzo[a]pyrene --- cell turnover --- triclocarban --- metastasis --- haemoglobin --- albumin --- protein adducts --- aldehydes --- genotoxicity --- cancer --- diseases --- oxidative stress --- exposure biomarkers --- high-resolution mass spectrometry --- data-dependent profiling --- derivatization --- biological fluids --- isotope labeling --- DNA lesion --- DNA damage --- shuttle vector technique --- replication block --- mutagenicity --- mutational spectrum --- mutational signature --- DNA repair --- DNA adduct bypass --- site-specific mutagenesis --- chemical exposome --- environmental monitoring --- disease --- bioinformatics --- gut microbiome --- chemical toxicity --- n/a

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