1
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The role of endogenous versus exogenous sources in the exposome of putative genotoxins and consequences for risk assessment. Arch Toxicol 2022; 96:1297-1352. [PMID: 35249149 PMCID: PMC9013691 DOI: 10.1007/s00204-022-03242-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/01/2022] [Indexed: 12/21/2022]
Abstract
AbstractThe “totality” of the human exposure is conceived to encompass life-associated endogenous and exogenous aggregate exposures. Process-related contaminants (PRCs) are not only formed in foods by heat processing, but also occur endogenously in the organism as physiological components of energy metabolism, potentially also generated by the human microbiome. To arrive at a comprehensive risk assessment, it is necessary to understand the contribution of in vivo background occurrence as compared to the ingestion from exogenous sources. Hence, this review provides an overview of the knowledge on the contribution of endogenous exposure to the overall exposure to putative genotoxic food contaminants, namely ethanol, acetaldehyde, formaldehyde, acrylamide, acrolein, α,β-unsaturated alkenals, glycation compounds, N-nitroso compounds, ethylene oxide, furans, 2- and 3-MCPD, and glycidyl esters. The evidence discussed herein allows to conclude that endogenous formation of some contaminants appears to contribute substantially to the exposome. This is of critical importance for risk assessment in the cases where endogenous exposure is suspected to outweigh the exogenous one (e.g. formaldehyde and acrolein).
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2
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Izquierdo-Garcia JL, Nin N, Cardinal-Fernandez P, Rojas Y, de Paula M, Granados R, Martínez-Caro L, Ruíz-Cabello J, Lorente JA. Identification of novel metabolomic biomarkers in an experimental model of septic acute kidney injury. Am J Physiol Renal Physiol 2018; 316:F54-F62. [PMID: 30379100 DOI: 10.1152/ajprenal.00315.2018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The aim of this study is the identification of metabolomic biomarkers of sepsis and sepsis-induced acute kidney injury (AKI) in an experimental model. Pigs were anesthetized and monitored to measure mean arterial pressure (MAP), systemic blood flow (QT), mean pulmonary arterial pressure, renal artery blood flow (QRA), renal cortical blood flow (QRC), and urine output (UO). Sepsis was induced at t = 0 min by the administration of live Escherichia coli ( n = 6) or saline ( n = 8). At t = 300 min, animals were killed. Renal tissue, urine, and serum samples were analyzed by nuclear magnetic resonance (NMR) spectroscopy. Principal component analyses were performed on the processed NMR spectra to highlight kidney injury biomarkers. Sepsis was associated with decreased QT and MAP and decreased QRA, QRC, and UO. Creatinine serum concentration and neutrophil gelatinase-associated lipocalin (NGAL) serum and urine concentrations increased. NMR-based metabolomics analysis found metabolic differences between control and septic animals: 1) in kidney tissue, increased lactate and nicotinuric acid and decreased valine, aspartate, glucose, and threonine; 2) in urine, increased isovaleroglycine, aminoadipic acid, N-acetylglutamine, N-acetylaspartate, and ascorbic acid and decreased myoinositol and phenylacetylglycine; and 3) in serum, increased lactate, alanine, pyruvate, and glutamine and decreased valine, glucose, and betaine concentrations. The concentration of several metabolites altered in renal tissue and urine samples from septic animals showed a significant correlation with markers of AKI (i.e., creatinine and NGAL serum concentrations). NMR-based metabolomics is a potentially useful tool for biomarker identification of sepsis-induced AKI.
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Affiliation(s)
- Jose L Izquierdo-Garcia
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,CIC biomaGUNE, Donostia- San Sebastian , Spain
| | - Nicolás Nin
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,Hospital Español , Montevideo , Uruguay
| | - Pablo Cardinal-Fernandez
- Department of Emergency, Hospital Universitario HM Sanchinarro. Fundación de Investigación HM , Madrid , Spain
| | - Yenny Rojas
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,Department of Critical Care, Hospital Universitario de Getafe , Madrid , Spain
| | - Marta de Paula
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,Department of Critical Care, Hospital Universitario de Getafe , Madrid , Spain
| | - Rosario Granados
- Department of Critical Care, Hospital Universitario de Getafe , Madrid , Spain
| | - Leticia Martínez-Caro
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,Department of Critical Care, Hospital Universitario de Getafe , Madrid , Spain
| | - Jesús Ruíz-Cabello
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,CIC biomaGUNE, Donostia- San Sebastian , Spain.,Departamento de Química-Física II, Facultad de Farmacia, Universidad Complutense de Madrid , Madrid , Spain
| | - José A Lorente
- CIBER de Enfermedades Respiratorias, CIBERES, Madrid , Spain.,Department of Critical Care, Hospital Universitario de Getafe , Madrid , Spain.,Universidad Europea de Madrid , Madrid , Spain
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3
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Møller P, Jantzen K, Løhr M, Andersen MH, Jensen DM, Roursgaard M, Danielsen PH, Jensen A, Loft S. Searching for assay controls for the Fpg- and hOGG1-modified comet assay. Mutagenesis 2017; 33:9-19. [DOI: 10.1093/mutage/gex015] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 09/05/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Kim Jantzen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Mille Løhr
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Maria Helena Andersen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Ditte Marie Jensen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Martin Roursgaard
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Pernille Høgh Danielsen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Annie Jensen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
| | - Steffen Loft
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade, Copenhagen K, Denmark
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4
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Pre-stimulation of the kallikrein system in cisplatin-induced acute renal injury: An approach to renoprotection. Toxicol Appl Pharmacol 2014; 280:216-23. [DOI: 10.1016/j.taap.2014.07.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 07/17/2014] [Accepted: 07/30/2014] [Indexed: 12/26/2022]
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5
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Ansar S. Antioxidant effect of butylated hydroxytoluene on ferric nitrilotriacetate induced renal hyper proliferation and injury in rats. Food Chem Toxicol 2013; 58:530-5. [DOI: 10.1016/j.fct.2013.04.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 04/20/2013] [Accepted: 04/30/2013] [Indexed: 11/27/2022]
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6
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Association of brominated proteins and changes in protein expression in the rat kidney with subcarcinogenic to carcinogenic doses of bromate. Toxicol Appl Pharmacol 2013; 272:391-8. [PMID: 23811332 DOI: 10.1016/j.taap.2013.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/13/2013] [Accepted: 06/17/2013] [Indexed: 12/15/2022]
Abstract
The water disinfection byproduct bromate (BrO3(-)) produces cytotoxic and carcinogenic effects in rat kidneys. Our previous studies demonstrated that BrO3(-) caused sex-dependent differences in renal gene and protein expression in rats and the elimination of brominated organic carbon in their urine. The present study examined changes in renal cell apoptosis and protein expression in male and female F344 rats treated with BrO3(-) and associated these changes with accumulation of 3-bromotyrosine (3-BT)-modified proteins. Rats were treated with 0, 11.5, 46 and 308 mg/L BrO3(-) in drinking water for 28 days and renal sections were prepared and examined for apoptosis (TUNEL-staining), 8-oxo-deoxyguanosine (8-oxoG), 3-BT, osteopontin, Kim-1, clusterin, and p-21 expression. TUNEL-staining in renal proximal tubules increased in a dose-related manner beginning at 11.5mg BrO3(-)/L in female rats and 46 mg/L in males. Increased 8-oxoG staining was observed at doses as low as 46 mg/L. Osteopontin expression also increased in a dose-related manner after treatment with 46 mg/L, in males only. In contrast, Kim-1 expression increased in a dose-related manner in both sexes, although to a greater extent in females at the highest dose. Clusterin and p21 expression also increased in a dose-related manner in both sexes. The expression of 3-BT-modified proteins only increased in male rats, following a pattern previously reported for accumulation of α-2u-globulin. Increases in apoptosis in renal proximal tubules of male and female rats at the lowest doses suggest a common mode of action for renal carcinogenesis for the two sexes that is independent of α-2u-globulin nephropathy.
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7
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Wang HP, Liang YJ, Sun YJ, Chen JX, Hou WY, Long DX, Wu YJ. 1H NMR-based metabonomic analysis of the serum and urine of rats following subchronic exposure to dichlorvos, deltamethrin, or a combination of these two pesticides. Chem Biol Interact 2013; 203:588-96. [PMID: 23566885 DOI: 10.1016/j.cbi.2013.03.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 03/25/2013] [Accepted: 03/28/2013] [Indexed: 12/27/2022]
Abstract
Metabonomic analysis, clinical chemical analysis and histopathology were used to investigate the toxic effects of subchronic exposure to dichlorvos, deltamethrin, and a combination of these two pesticides, in rats. Weight loss, hind limb weakness and histopathological changes in kidney tissue were only observed in rats exposed to high doses of deltamethrin, or a combination of deltamethrin and dichlorvos. Urinary metabonomic analysis indicated that exposure to a mixture of dichlorvos and deltamethrin was followed by increases in urinary lactate, dimethylamine, N-glycoprotein (NAC) and glycine similar to those observed in rats treated with either dichlorvos or deltamethrin alone. Serum metabonomic analysis suggests that dichlorvos induced an increase in lactate and alanine and a decrease in dimethylglycine (DMG), NAC and very low- and low-density lipoprotein (VLDL/LDL). High levels of lactate and low levels of NAC and VLDL/LDL were observed in the deltamethrin treatment group. Treating rats with a mixture of dichlorvos and deltamethrin caused an increase in serum lactate, trimethylamine-N-oxide (TMAO), choline and alanine, with the highest levels of these metabolites observed in those that received the highest dose. Exposure to a mixture of dichlorvos and deltamethrin also resulted in a decrease in serum acetone, DMG, NAC, and VLDL/LDL. Changes in serum TMAO, alanine, choline and acetone in this treatment group were higher than in rats treated with either dichlorvos or deltamethrin. These results suggest that exposing rats to subchronic doses of dichlorvos, deltamethrin, or a combination of these pesticides, disrupted the energy metabolism of the liver and reduced kidney function.
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Affiliation(s)
- Hui-Ping Wang
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beichenxi Road, Beijing 100101, PR China
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8
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Liu L, He Y, Lu H, Wang M, Sun C, Na L, Li Y. Metabonomic analysis of urine from rats after low-dose exposure to 3-chloro-1,2-propanediol using UPLC-MS. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 927:97-104. [PMID: 23522902 DOI: 10.1016/j.jchromb.2013.01.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 01/25/2013] [Accepted: 01/25/2013] [Indexed: 01/31/2023]
Abstract
To study the toxic effect of chronic exposure to 3-chloro-1,2-propanediol (3-MCPD) at low doses, a metabonomics approach based on ultrahigh-performance liquid chromatography and quadruple time-of-flight mass spectrometry (UPLC-Q-TOF-MS) was performed. Two different doses of 3-MCPD (1.1 and 5.5mg/kg bw/d) were administered to Wistar rats for 120 days (1.1mg/kg bw/d: lowest observed adverse effect level [LOAEL]). The metabolite profiles and biochemical parameters were obtained at five time points after treatment. For the 3-MCPD-treated groups, a significant change in urinary N-acetyl-β-d-glucosaminidase and β-d-galactosidase was detected on day 90, while some biomarkers based on the metabonomics, such as N-acetylneuraminic acid, N-acetyl-l-tyrosine, and gulonic acid, were detected on day 30. These results suggest that these biomarkers changed more sensitively and earlier than conventional biochemical parameters and were thus considered early and sensitive biomarkers of exposure to 3-MCPD; these biomarkers provide more information on toxicity than conventional biochemical parameters. These results might be helpful to investigate the toxic mechanisms of 3-MCPD and provide a scientific basis for assessing the effect of chronic exposure to low-dose 3-MCPD on human health.
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Affiliation(s)
- Liyan Liu
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, PR China
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9
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Yang J, Wang H, Xu W, Hao D, Du L, Zhao X, Sun C. Metabolomic analysis of rat plasma following chronic low-dose exposure to dichlorvos. Hum Exp Toxicol 2012; 32:196-205. [DOI: 10.1177/0960327112459533] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- J Yang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - H Wang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - W Xu
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - D Hao
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - L Du
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - X Zhao
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
| | - C Sun
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, People’s Republic of China
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10
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Ou ZJ, Li L, Liao XL, Wang YM, Hu XX, Zhang QL, Wang ZP, Yu H, Zhang X, Hu P, Xu YQ, Liang QL, Ou JS, Luo G. Apolipoprotein A-I mimetic peptide inhibits atherosclerosis by altering plasma metabolites in hypercholesterolemia. Am J Physiol Endocrinol Metab 2012; 303:E683-94. [PMID: 22535745 DOI: 10.1152/ajpendo.00136.2012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An apolipoprotein A-I mimetic peptide, D-4F, has been shown to improve vasodilation and inhibit atherosclerosis in hypercholesterolemic low-density lipoprotein receptor-null (LDLr(-/-)) mice. To study the metabolic variations of D-4F ininhibiting atherosclerosis, metabonomics, a novel system biological strategy to investigate the pathogenesis, was developed. Female LDLr(-/-) mice were fed a Western diet and injected with or without D-4F intraperitoneally. Atherosclerotic lesion formation was measured, whereas plasma metabolic profiling was obtained on the basis of ultra-high-performance liquid chromatography in tandem with time-of-flight mass spectrometry operating in both positive and negative ion modes. Data were processed by multivariate statistical analysis to graphically demonstrate metabolic changes. The partial least-squares discriminate analysis model was validated with cross-validation and permutation tests to ensure the model's reliability. D-4F significantly inhibited the formation of atherosclerosis in a time-dependent manner. The metabolic profiling was altered dramatically in hypercholesterolemic LDLr(-/-) mice, and a significant metabolic profiling change in response to D-4F treatment was observed in both positive and negative ion modes. Thirty-six significantly changed metabolites were identified as potential biomarkers. A series of phospholipid metabolites, including lysophosphatidylcholine (LysoPC), lysophosphatidylethanolamine (LysoPE), phosphatidylcholine (PC), phatidylethanolamine (PE), sphingomyelin (SM), and diacylglycerol (DG), particularly the long-chain LysoPC, was elevated dramatically in hypercholesterolemic LDLr(-/-) mice but reduced by D-4F in a time-dependent manner. Quantitative analysis of LysoPC, LysoPE, PC, and DG using HPLC was chosen to validate the variation of these potential biomarkers, and the results were consistent with the metabonomics findings. Our findings demonstrated that D-4F may inhibit atherosclerosis by regulating phospholipid metabolites specifically by decreasing plasma long-chain LysoPC.
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MESH Headings
- Animals
- Aorta/drug effects
- Aorta/pathology
- Apolipoprotein A-I/administration & dosage
- Apolipoprotein A-I/therapeutic use
- Atherosclerosis/etiology
- Atherosclerosis/prevention & control
- Biomarkers/blood
- Biomarkers/chemistry
- Chromatography, High Pressure Liquid
- Diet, Atherogenic/adverse effects
- Female
- Hypercholesterolemia/blood
- Hypercholesterolemia/drug therapy
- Hypercholesterolemia/pathology
- Hypercholesterolemia/physiopathology
- Hypolipidemic Agents/administration & dosage
- Hypolipidemic Agents/therapeutic use
- Injections, Intraperitoneal
- Lipids/blood
- Lipids/chemistry
- Lysophosphatidylcholines/blood
- Lysophosphatidylcholines/chemistry
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Plaque, Atherosclerotic/etiology
- Plaque, Atherosclerotic/prevention & control
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- Spectrometry, Mass, Electrospray Ionization
- Vasodilator Agents/administration & dosage
- Vasodilator Agents/therapeutic use
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Affiliation(s)
- Zhi-Jun Ou
- Division of Hypertension and Vascular Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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11
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Sun YJ, Wang HP, Liang YJ, Yang L, Li W, Wu YJ. An NMR-based metabonomic investigation of the subacute effects of melamine in rats. J Proteome Res 2012; 11:2544-50. [PMID: 22401608 DOI: 10.1021/pr2012329] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The subacute toxic effects of 28 days of exposure to three dosages (250, 500, 1000 mg/kg/day) of melamine on Wistar rats were investigated using nuclear magnetic resonance spectra, histopathological examination, and biochemical analysis. Rats treated with melamine developed adverse health effects compared to the controls, including decrease in body weight and kidney damage. Blood biochemical analysis showed that the blood urea nitrogen and creatinine increased distinctly compared to the control group. Urinary metabonomic analysis indicated that melamine caused an increase in succinate and citrate. Serum metabonomic analysis showed that the lowest dose led to an increase in dimethylglycine, N-acetylglycoprotein (NAC), accompanied by a decrease in taurine and glucose. Rats treated with the highest dose developed high levels of serum choline and 3-hydroxybutyrate (3-HB) together with low lactate levels. Metabonomic analysis of liver tissue indicated that melamine caused an increase in NAC, choline, and creatine, accompanied by a decrease in lactate, trimethylamine-N-oxide, glutamate, and glucose. All three dosages resulted in an increase in glutamate, lactate, choline, glucose, and animo acids and a decrease in 3-HB and pyruvate in aqueous kidney extract. These results indicate that melamine not only caused renal disfunction but also disturbed the liver's glucose, protein, and nitrogen metabolism.
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Affiliation(s)
- Ying-Jian Sun
- Department of Veterinary Medicine and Animal Science, Beijing Agriculture College, Beijing 102206, PR China
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12
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Kuiper HC, Stevens JF. LC-MS/MS quantitation of mercapturic acid conjugates of lipid peroxidation products as markers of oxidative stress. ACTA ACUST UNITED AC 2012; Chapter 17:Unit17.14.2. [PMID: 21442005 DOI: 10.1002/0471140856.tx1714s45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Oxidative stress-induced lipid peroxidation (LPO) leads to the formation of cytotoxic and genotoxic 2-alkenals. LPO products such as 4-hydroxy-2(E)-nonenal (HNE) and 4-oxo-2(E)-nonenal (ONE) have been the subject of many studies due to their association with the development of cardiovascular and neurodegenerative diseases, as well as cancer. LPO products are excreted in the urine after conjugation with glutathione (GSH) and subsequent metabolism to mercapturic acid (MA) conjugates. Urinary LPO-MA metabolites are stable end-product metabolites and have gained interest as non-invasive in vivo biomarkers of oxidative stress. This protocol describes a method for the quantitative analysis of LPO-MA metabolites in urine using isotope-dilution liquid chromatography coupled with electrospray tandem mass spectrometry (LC-MS/MS). Included are protocols for preparation of labeled LPO-MA conjugates from unlabeled LPO products and deuterium labeled MA.
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Affiliation(s)
- Heather C Kuiper
- Linus Pauling Institute and the Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon, USA.
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13
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Yang J, Sun X, Feng Z, Hao D, Wang M, Zhao X, Sun C. Metabolomic analysis of the toxic effects of chronic exposure to low-level dichlorvos on rats using ultra-performance liquid chromatography-mass spectrometry. Toxicol Lett 2011; 206:306-13. [PMID: 21889581 DOI: 10.1016/j.toxlet.2011.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 08/17/2011] [Accepted: 08/17/2011] [Indexed: 01/28/2023]
Abstract
The purpose of the current study was to assess the effects of long-term exposure to low levels of DDVP on the biochemical parameters and metabolic profiles of rats. Three different doses (2.4, 7.2, and 21.6 mg/kg body weight/day) of DDVP were administered to rats through their drinking water over 24 weeks. Significant changes in blood cholinesterase, creatinine, urea nitrogen, aspartate aminotransferase, alanine aminotransferase, and albumin concentrations were observed in the middle and high dose groups. Changes in the concentration of some urine metabolites were detected via ultra performance liquid chromatography-mass spectrometry (UPLC-MS). Dimethyl phosphate (DMP), which was exclusively detected in the treated groups, can be an early, sensitive biomarker for DDVP exposure. Moreover, DDVP treatment resulted in an increase in the lactobionic acid, estrone sulfate, and indoxyl sulfic concentrations, and a decrease in citric acid, suberic acid, gulonic acid, urea, creatinine, and uric acid. These results suggest that chronic exposure to low-level DDVP can cause a disturbance in carbohydrate and fatty acid metabolism, the antioxidant system, etc. Therefore, an analysis of the metabolic profiles can contribute to the understanding of the adverse effects of long-term exposure to low doses of DDVP.
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Affiliation(s)
- Jindan Yang
- Public Health College, Harbin Medical University, Harbin 150081, PR China
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14
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Ellis JK, Athersuch TJ, Cavill R, Radford R, Slattery C, Jennings P, McMorrow T, Ryan MP, Ebbels TMD, Keun HC. Metabolic response to low-level toxicant exposure in a novel renal tubuleepithelial cell system. ACTA ACUST UNITED AC 2011; 7:247-57. [DOI: 10.1039/c0mb00146e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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15
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Mally A, Graff C, Schmal O, Moro S, Hamberger C, Schauer UM, Brück J, Özden S, Sieber M, Steger U, Schrenk D, Hard GC, Chipman JK, Dekant W. Functional and proliferative effects of repeated low-dose oral administration of furan in rat liver. Mol Nutr Food Res 2010; 54:1556-67. [DOI: 10.1002/mnfr.201000064] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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16
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Yan G, Zhao Y, Deng P, Lv L, Wang Y, Bu Q, Liu B, Hu C, Zhuo Y, Yang X, Wang L, Cen X. Investigation of toxicological effects of Shuanghuanglian injection in Beagle dogs by metabonomic and traditional approaches. Exp Biol Med (Maywood) 2010; 235:1356-64. [PMID: 20864460 DOI: 10.1258/ebm.2010.009390] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
In this study, clinical biochemistry, hematology, histopathology and (1)H nuclear magnetic resonance spectroscopy-based metabonomic approaches were applied to investigate the toxicological effects of Shuanghuanglian (SHL) injection after intravenous administration (dosed at 4, 12 and 36 mL stock/kg) in Beagle dogs for 30 d. Decreases in red blood cells, hemoglobin, mean cell volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration were observed in the high-dose group. Elevated reticulocytes, total bilirubin and direct bilirubin were also observed in this group. Moreover, significant hemosiderosis and Prussian blue positivity were detected in the liver, spleen and kidney from high-dose group animals, and transmission electron microscopy examination revealed an appreciable number of acanthrocytes in the liver. These results collectively indicate that SHL injection has the potential to cause hemolytic anemia. Metabonomic analysis showed increases in serum lactate, choline and phosphocholine but a decrease in taurine in treated groups and these findings may underlie the toxicological mechanism of SHL injection. In summary, SHL injection shows hemolytic effects in Beagle dogs; moreover, serum choline and phosphocholine as well as lactate and taurine may be the biomarkers for hemolytic anemia induced by SHL injection.
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Affiliation(s)
- Guangyan Yan
- National Chengdu Center for Safety Evaluation of Drugs, West China Hospital of Sichuan University, Chengdu 610041, China
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17
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Travagli V, Zanardi I, Bernini P, Nepi S, Tenori L, Bocci V. Effects of ozone blood treatment on the metabolite profile of human blood. Int J Toxicol 2010; 29:165-74. [PMID: 20335512 DOI: 10.1177/1091581809360069] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Metabonomic characterization of the effects caused by ozone and other stressors on normal human blood was performed. Samples of blood obtained from healthy subjects were treated ex vivo with increasing concentrations of ozone and/or with UV radiation and heat. (1)H-NMR analysis of plasma samples after treatments showed the quantitative variation of some metabolites and the formation of new metabolites normally absent. Both the increment of some metabolites like formate, acetoacetate, and acetate and the decrement of pyruvate were of particular interest. Moreover, the oxidation of ascorbic acid and the transformation of uric acid into allantoin after ozonation within the therapeutic concentration range were observed. In the ozonated spectra, 2 unidentified peaks appeared at 2.82 ppm and 8.08 ppm. They are related to the direct antioxidant activity of albumin in the presence of ozone and they could be considered as specific markers of the blood ozonation.
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Long EK, Picklo MJ. Trans-4-hydroxy-2-hexenal, a product of n-3 fatty acid peroxidation: make some room HNE.. Free Radic Biol Med 2010; 49:1-8. [PMID: 20353821 DOI: 10.1016/j.freeradbiomed.2010.03.015] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 03/11/2010] [Accepted: 03/16/2010] [Indexed: 10/19/2022]
Abstract
Lipid peroxidation yields multiple aldehyde species. Of these, trans-4-hydroxy-2-nonenal (HNE), derived from n-6 poly-unsaturated fatty acids (PUFA) is one of the most studied products of lipid peroxidation. On the other hand, oxidative damage to n-3 PUFA, e.g. docosahexaenoic acid (DHA; 22:6, n-3) and eicosapentaenoic acid, is now recognized as an important effector of oxidative stress and is of particular interest in n-3 rich tissues such as brain and retina. Trans-4-hydroxy-2-hexenal (HHE) is a major alpha,beta-unsaturated aldehyde product of n-3 PUFA oxidation and, like HNE, is an active biochemical mediator resulting from lipid peroxidation. HHE adducts are elevated in disease states, in some cases, at higher levels than the corresponding HNE adduct. HHE has properties in common with HNE, but there are important differences particularly with respect to adduction targets and detoxification pathways. In this review, the biochemistry and cell biology of HHE will be discussed. From this review, it is clear that further study is needed to determine the biochemical and physiological roles of HHE and its related aldehyde, trans-4-oxo-2-hexenal.
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Affiliation(s)
- Eric K Long
- Department of Pharmacology, Physiology, and Therapeutics, Grand Forks, ND 58203-9037, USA
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Kuiper HC, Langsdorf BL, Miranda CL, Joss J, Jubert C, Mata JE, Stevens JF. Quantitation of mercapturic acid conjugates of 4-hydroxy-2-nonenal and 4-oxo-2-nonenal metabolites in a smoking cessation study. Free Radic Biol Med 2010; 48:65-72. [PMID: 19819328 PMCID: PMC2818256 DOI: 10.1016/j.freeradbiomed.2009.10.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2009] [Revised: 08/29/2009] [Accepted: 10/03/2009] [Indexed: 01/03/2023]
Abstract
The breakdown of polyunsaturated fatty acids (PUFAs) under conditions of oxidative stress results in the formation of lipid peroxidation (LPO) products. These LPO products such as 4-hydroxy-2-nonenal (HNE) and 4-oxo-2-nonenal (ONE) can contribute to the development of cardiovascular and neurodegenerative diseases and cancer. Conjugation with glutathione, followed by further metabolism to mercapturic acid (MA) conjugates, can mitigate the effects of these LPO products in disease development by facilitating their excretion from the body. We have developed a quantitative method to simultaneously assess levels of 4-oxo-2-nonen-1-ol (ONO)-MA, HNE-MA, and 1,4-dihydroxy-2-nonene (DHN)-MA in human urine samples utilizing isotope-dilution mass spectrometry. We are also able to detect 4-hydroxy-2-nonenoic acid (HNA)-MA, 4-hydroxy-2-nonenoic acid lactone (HNAL)-MA, and 4-oxo-2-nonenoic acid (ONA)-MA with this method. The detection of ONO-MA and ONA-MA in humans is significant because it demonstrates that HNE/ONE branching occurs in the breakdown of PUFAs and suggests that ONO may contribute to the harmful effects currently associated with HNE. We were able to show significant decreases in HNE-MA, DHN-MA, and total LPO-MA in a group of seven smokers upon smoking cessation. These data demonstrate the value of HNE and ONE metabolites as in vivo markers of oxidative stress.
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Affiliation(s)
- Heather C Kuiper
- Linus Pauling Institute and the Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR 97331, USA
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Metabolomic analysis of biofluids from rats treated with Aconitum alkaloids using nuclear magnetic resonance and gas chromatography/time-of-flight mass spectrometry. Anal Biochem 2009; 395:125-33. [DOI: 10.1016/j.ab.2009.08.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 08/01/2009] [Accepted: 08/11/2009] [Indexed: 11/21/2022]
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Wang HP, Liang YJ, Long DX, Chen JX, Hou WY, Wu YJ. Metabolic Profiles of Serum from Rats after Subchronic Exposure to Chlorpyrifos and Carbaryl. Chem Res Toxicol 2009; 22:1026-33. [DOI: 10.1021/tx8004746] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hui-Ping Wang
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Yu-Jie Liang
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Ding-Xin Long
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Jia-Xiang Chen
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Wei-Yuan Hou
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Yi-Jun Wu
- Laboratory of Molecular Toxicology, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Datunlu Road, Beijing 100101, and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
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