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Mao X, Liu Y, Wei Y, Li X, Liu Y, Su G, Wang X, Jia J, Yan B. Threats of per- and poly-fluoroalkyl pollutants to susceptible populations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171188. [PMID: 38395163 DOI: 10.1016/j.scitotenv.2024.171188] [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: 10/18/2023] [Revised: 01/29/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Environmental exposure to per- and poly-fluoroalkyl substances (PFAS) has raised significant global health concerns due to potential hazards in healthy adults. However, the impact of PFAS on susceptible populations, including pregnant individuals, newborns, the older people, and those with underlying health conditions, has been overlooked. These susceptible groups often have physiological changes that make them less resilient to the same exposures. Consequently, there is an urgent need for a comprehensive understanding of the health risks posed by PFAS exposure to these populations. In this review, we delve into the potential health risks of PFAS exposure in these susceptible populations. Equally important, we also examine and discuss the molecular mechanisms that underlie this susceptibility. These mechanisms include the induction of oxidative stress, disruption of the immune system, impairment of cellular metabolism, and alterations in gut microbiota, all of which contribute to the enhanced toxicity of PFAS in susceptible populations. Finally, we address the primary research challenges and unresolved issues that require further investigation. This discussion aims to foster research for a better understanding of how PFAS affect susceptible populations and to pave the way for strategies to minimize their adverse effects.
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Affiliation(s)
- Xuan Mao
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yujiao Liu
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yongyi Wei
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Xiaodi Li
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yin Liu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Gaoxing Su
- School of Pharmacy, Nantong University, Nantong 226019, China
| | - Xiaohong Wang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Jianbo Jia
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
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Balcı Özyurt A, Erkekoğlu P, Zeybek ND, Aşcı A, Yaman Ü, Oflaz O, Kızılgün M, İşcan E, Batur T, Öztürk M, Koçer-Gümüşel B. Toxic effects of Aroclor 1254 on rat liver and modifying roles of selenium. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:1289-1304. [PMID: 37309736 DOI: 10.1080/09603123.2023.2223470] [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: 02/10/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
Polychlorinated biphenyls (PCBs) were used in different industrial areas and banned due to their high toxicity. Aroclor 1254 (A1254), commercial PCB congener, accumulates in environment leading to high human exposure. A1254 may cause hepatotoxicity, metabolic and endocrine disorders. In our study, 3-week-old male rats were separated into 6 groups: C (0.15 mg/kg Se in diet); SeS (1 mg/kg Se in diet); SeD (0.05 mg/kg Se in diet); A1254 receiving groups (A; ASeS; ASeD) were given 10 mg/kg/day A1254 orally for last 15 days of feeding period with control, SeD or SeS diet, respectively, for 5 weeks. Histopathology, oxidant/antioxidant balance, apoptosis and cell cycle proteins (p53, p21) in liver were evaluated. Our results suggest that A1254 leads to changes in histology, oxidative stress and apoptosis. Selenium deficiency augments oxidative stress and apoptosis while selenium supplementation is partially protective. More mechanistic in vivo experiments are necessary for evaluation of hepatotoxicity of PCBs.
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Affiliation(s)
- Aylin Balcı Özyurt
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Toxicology, School of Pharmacy, Bahçeşehir University, İ̇stanbul, Turkey
| | - Pınar Erkekoğlu
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Naciye Dilara Zeybek
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ali Aşcı
- Department of Toxicology, Faculty of Pharmacy, Selçuk University, Konya, Turkey
| | - Ünzile Yaman
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Toxicology, Faculty of Pharmacy, İ̇zmir Katip Çelebi University, İ̇zmir, Turkey
| | - Ofcan Oflaz
- Department of Medical Biology, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
| | - Murat Kızılgün
- Gulhane Faculty of Medicine, University of Health Sciences, Ankara, Turkey
| | - Evin İşcan
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
| | - Tuğçe Batur
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
| | - Mehmet Öztürk
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
- Galen Research Center, İ̇zmir Tinaztepe University, İ̇zmir, Turkey
| | - Belma Koçer-Gümüşel
- Department of Toxicology, Faculty of Pharmacy, Lokman Hekim University, Ankara, Turkey
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Gao X, Yan D, Li G, Wei Y, He H, Zhai J. Polychlorinated biphenyls and risk of metabolic syndrome and comparison with the risk of diabetes: A systematic review and meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165773. [PMID: 37506918 DOI: 10.1016/j.scitotenv.2023.165773] [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: 02/05/2023] [Revised: 05/07/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
With the increasing incidence of metabolic syndrome (MetS) worldwide and no consistent results on PCBs and MetS. A meta-analysis to explore their relationship was conducted. Given the high correlation and overlap of MetS with diabetes, analysis of diabetes risk, was used as a supplement to compare with MetS. Seven studies included MetS, 15 studies for diabetes, and one study included both outcomes. It was found that PCBs may not be a risk factor for MetS, but their high heterogeneity indicates that they are under-represented. In addition, our results showed that total PCBs might be a protective factor against diabetes. In the whole blood subgroup, which can reflect the accumulation of more than one body load, heterogeneity was reduced, and its OR value suggested that PCBs increased the risk of MetS in the whole blood biomaterial. DL-PCBs were positively associated with MetS and diabetes, while NDL-PCBs were negatively associated with diabetes. In the subgroup analysis of PCBs homologs, DL-PCB-126 and DL-PCB-118 were risk factors for MetS and diabetes, respectively. In addition, PCB-153 and 180 showed a dose-response relationship between them and diabetes mellitus, respectively. The results of total analysis of MetS and diabetes mellitus and subgroup analysis of PCBs were mixed, and this reason might be attributed to the different mechanisms of action and effect sizes of different PCBs, so based on subgroup results and in vivo and in vitro experiments, we considered PCBs to be a risk factor for MetS and diabetes. Due to various reasons, there are still many shortcomings in the evaluation of PCBs impact on human health, and more high-quality research are needed to further explore the role of PCBs of different species and congeners in MetS and diabetes.
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Affiliation(s)
- Xin Gao
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Di Yan
- Department of Public Affairs Administration, School of Health Management, Anhui Medical University, Meishan Rd 81, Heifei, China
| | - Guangying Li
- Department of Public Affairs Administration, School of Health Management, Anhui Medical University, Meishan Rd 81, Heifei, China
| | - Yu Wei
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Huan He
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Jinxia Zhai
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China.
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Porto VA, da Rocha Júnior ER, Ursulino JS, Porto RS, da Silva M, de Jesus LWO, Oliveira JMD, Crispim AC, Santos JCC, Aquino TMD. NMR-based metabolomics applied to ecotoxicology with zebrafish (Danio rerio) as a prominent model for metabolic profiling and biomarker discovery: Overviewing the most recent approaches. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161737. [PMID: 36693575 DOI: 10.1016/j.scitotenv.2023.161737] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/28/2022] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
Metabolomics is an innovative approach used in the medical, toxicological, and biological sciences. As an interdisciplinary topic, metabolomics and its relation with the environment and toxicological research are extensive. The use of substances, such as drugs and pesticides, contributes to the continuous releasing of xenobiotics into the environment, harming organisms and their habitats. In this context, fish are important bioindicators of the environmental condition and have often been used as model species. Among them, zebrafish (Danio rerio) presents itself as a versatile and straightforward option due to its unique attributes for research. Zebrafish proves to be a valuable model for toxicity assays and also for metabolomics profiling by analytical tools. Thus, NMR-based metabolomics associated with statistical analysis can reasonably assist researchers in critical factors related to discovering and validating biomarkers through accurate diagnosis. Therefore, this review aimed to report the studies that applied zebrafish as a model for (eco)toxicological assays and essentially utilized NMR-based metabolomics analysis to assess the biochemical profile and thus suggest the potential biological marker.
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Affiliation(s)
- Viviane Amaral Porto
- Research Group on Therapeutic Strategies, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil.
| | | | - Jeferson Santana Ursulino
- Research Group on Therapeutic Strategies, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil
| | - Ricardo Silva Porto
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil
| | - Marciliano da Silva
- Laboratory of Applied Animal Morphophysiology, Institute of Biological and Health Sciences, Federal University of Alagoas, Maceió, AL, Brazil
| | - Lázaro Wender Oliveira de Jesus
- Laboratory of Applied Animal Morphophysiology, Institute of Biological and Health Sciences, Federal University of Alagoas, Maceió, AL, Brazil
| | | | - Alessandre Carmo Crispim
- Research Group on Therapeutic Strategies, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil
| | | | - Thiago Mendonça de Aquino
- Research Group on Therapeutic Strategies, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, AL, Brazil
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5
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Hernández-Mesa M, Narduzzi L, Ouzia S, Soetart N, Jaillardon L, Guitton Y, Le Bizec B, Dervilly G. Metabolomics and lipidomics to identify biomarkers of effect related to exposure to non-dioxin-like polychlorinated biphenyls in pigs. CHEMOSPHERE 2022; 296:133957. [PMID: 35157878 DOI: 10.1016/j.chemosphere.2022.133957] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Recent epidemiological studies show that current levels of exposure to polychlorinated biphenyls (PCBs) remain of great concern, as there is still a link between such exposures and the development of chronic environmental diseases. In this sense, most studies have focused on the health effects caused by exposure to dioxin-like PCBs (DL-PCBs), although chemical exposure to non-dioxin-like PCB (NDL-PCB) congeners is more significant. In addition, adverse effects of PCBs have been documented in humans after accidental and massive exposure, but little is known about the effect of chronic exposure to low-dose PCB mixtures. In this work, exposure to Aroclor 1260 (i.e. a commercially available mixture of PCBs consisting primarily of NDL-PCB congeners) in pigs is investigated as new evidence in the risk assessment of NDL-PCBs. This animal model has been selected due to the similarities with human metabolism and to support previous toxicological studies carried out with more frequently used animal models. Dietary exposure doses in the order of few ng/kg body weight (b.w.) per day were applied. As expected, exposure to Aroclor 1260 led to the bioaccumulation of NDL-PCBs in perirenal fat of pigs. Metabolomics and lipidomics have been applied to reveal biomarkers of effect related to Aroclor 1260 exposure, and by extension to NDL-PCB exposure, for 21 days. In the metabolomics analysis, 33 metabolites have been identified (level 1 and 2) as significantly altered by the Aroclor 1260 administration, while in the lipidomics analysis, 39 metabolites were putatively annotated (level 3) and associated with NDL-PCB exposure. These biomarkers are mainly related to the alteration of fatty acid metabolism, glycerophospholipid metabolism and tryptophan-kynurenine pathway.
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Affiliation(s)
| | | | - Sadia Ouzia
- Oniris, INRAE, LABERCA, 44300, Nantes, France
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6
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Untargeted Metabolome Analysis Reveals Reductions in Maternal Hepatic Glucose and Amino Acid Content That Correlate with Fetal Organ Weights in a Mouse Model of Fetal Alcohol Spectrum Disorders. Nutrients 2022; 14:nu14051096. [PMID: 35268071 PMCID: PMC8912878 DOI: 10.3390/nu14051096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 12/13/2022] Open
Abstract
Prenatal alcohol exposure (PAE) causes fetal growth restrictions. A major driver of fetal growth deficits is maternal metabolic disruption; this is under-investigated following PAE. Untargeted metabolomics on the dam and fetus exposed to alcohol (ALC) revealed that the hepatic metabolome of ALC and control (CON) dams were distinct, whereas that of ALC and CON fetuses were similar. Alcohol reduced maternal hepatic glucose content and enriched essential amino acid (AA) catabolites, N-acetylated AA products, urea content, and free fatty acids. These alterations suggest an attempt to minimize the glucose gap by increasing gluconeogenesis using AA and glycerol. In contrast, ALC fetuses had unchanged glucose and AA levels, suggesting an adequate draw of maternal nutrients, despite intensified stress on ALC dams. Maternal metabolites including glycolytic intermediates, AA catabolites, urea, and one-carbon-related metabolites correlated with fetal liver and brain weights, whereas lipid metabolites correlated with fetal body weight, indicating they may be drivers of fetal weight outcomes. Together, these data suggest that ALC alters maternal hepatic metabolic activity to limit glucose availability, thereby switching to alternate energy sources to meet the high-energy demands of pregnancy. Their correlation with fetal phenotypic outcomes indicates the influence of maternal metabolism on fetal growth and development.
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Chen S, Che S, Li S, Wan J, Ruan Z. High-fat diet exacerbated decabromodiphenyl ether-induced hepatocyte apoptosis via intensifying the transfer of Ca 2+ from endoplasmic reticulum to mitochondria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118297. [PMID: 34624399 DOI: 10.1016/j.envpol.2021.118297] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
Polybrominated diphenyl ether (PBDE) as the flame retardant is heavily used in daily necessities, causing adverse health effects on humans. This study aimed to evaluate the hepatotoxicity of decabromodiphenyl ether (BDE-209), the most widely used PBDE, in lean and high-fat diet (HFD)-treated obese mice and elucidate the underlying mechanism. Firstly, the increasing levels of TG and proinflammatory factors in the liver and ALT and AST in serum demonstrated the hepatic damage caused by BDE-209 and further exacerbated by HFD. Tunel image revealed that BDE-209 induced more severe hepatocyte apoptosis with the assistant of HFD. Next, the mechanism analysis showed that the pro-apoptotic action of BDE-209 was in an endoplasmic reticulum (ER)/Ca2+ flux/mitochondria-dependent manner, concluded from the impairment of mitochondrial membrane potential, the enhancive protein expression of p-PERK/PERK, p-IRE1/IRE1, ATF6, CHOP, Bax/Bcl-2, cleaved caspase-3/caspase-3, IP3R1 and Sig-1R, and the over-transfer of Ca2+ from ER to mitochondria. Such proposed mechanism was further confirmed by the IP3R1 siRNA transfection cell experiment, where apoptotic rate was reduced in parallel with the reduced mitochondrial Ca2+ level. Finally, the higher expression of PACS-2 protein and the expanded ER contributed to the enriched ER-mitochondria interaction, reflected by the closer distance between ER and mitochondria visually displayed in the TEM image in HFD groups. This change was conducive to the rapid delivery of apoptosis signals via Ca2+, as proven, mechanically explaining the strengthening effect of HFD on BDE-209 hepatotoxicity. These findings detailedly explained the mechanism of BDE-209 hepatotoxicity and clarified the auxiliary effect of HFD, providing a theoretical basis for further studying other analogs.
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Affiliation(s)
- Sunni Chen
- State Key Laboratory of Food Science and Technology, Nanchang Key Laboratory of Fruits and Vegetables Nutrition and Processing, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang, 330047, China
| | - Siyan Che
- State Key Laboratory of Food Science and Technology, Nanchang Key Laboratory of Fruits and Vegetables Nutrition and Processing, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang, 330047, China
| | - Shiqi Li
- State Key Laboratory of Food Science and Technology, Nanchang Key Laboratory of Fruits and Vegetables Nutrition and Processing, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang, 330047, China
| | - Jin Wan
- State Key Laboratory of Food Science and Technology, Nanchang Key Laboratory of Fruits and Vegetables Nutrition and Processing, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang, 330047, China
| | - Zheng Ruan
- State Key Laboratory of Food Science and Technology, Nanchang Key Laboratory of Fruits and Vegetables Nutrition and Processing, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang, 330047, China.
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8
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Liu L, Wu Q, Miao X, Fan T, Meng Z, Chen X, Zhu W. Study on toxicity effects of environmental pollutants based on metabolomics: A review. CHEMOSPHERE 2022; 286:131815. [PMID: 34375834 DOI: 10.1016/j.chemosphere.2021.131815] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/23/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
In the past few decades, the toxic effects of environmental pollutants on non-target organisms have received more and more attention. As a new omics technology, metabolomics can clarify the metabolic homeostasis of the organism at the overall level by studying the changes in the relative contents of endogenous metabolites in the organism. Recently, a large number of studies have used metabolomics technology to study the toxic effects of environmental pollutants on organisms. In this review, we reviewed the analysis processes and data processes of metabolomics and its application in the study of the toxic effects of environmental pollutants including heavy metals, pesticides, polychlorinated biphenyls, polycyclic aromatic hydrocarbons, polybrominated diphenyl ethers and microplastics. In addition, we emphasized that the combination of metabolomics and other omics technologies will help to explore the toxic mechanism of environmental pollutants and provide new research ideas for the toxicological evaluation of environmental pollutants.
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Affiliation(s)
- Li Liu
- School of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Qinchao Wu
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xinyi Miao
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Tianle Fan
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Zhiyuan Meng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China.
| | - Xiaojun Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Wentao Zhu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
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9
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Zhu Y, Wancewicz B, Schaid M, Tiambeng TN, Wenger K, Jin Y, Heyman H, Thompson CJ, Barsch A, Cox ED, Davis DB, Brasier AR, Kimple ME, Ge Y. Ultrahigh-Resolution Mass Spectrometry-Based Platform for Plasma Metabolomics Applied to Type 2 Diabetes Research. J Proteome Res 2020; 20:463-473. [PMID: 33054244 DOI: 10.1021/acs.jproteome.0c00510] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Metabolomics-the endpoint of the omics cascade-is increasingly recognized as a preferred method for understanding the ultimate responses of biological systems to stress. Flow injection electrospray (FIE) mass spectrometry (MS) has advantages for untargeted metabolic fingerprinting due to its simplicity and capability for high-throughput screening but requires a high-resolution mass spectrometer to resolve metabolite features. In this study, we developed and validated a high-throughput and highly reproducible metabolomics platform integrating FIE with ultrahigh-resolution Fourier transform ion cyclotron resonance (FTICR) MS for analysis of both polar and nonpolar metabolite features from plasma samples. FIE-FTICR MS enables high-throughput detection of hundreds of metabolite features in a single mass spectrum without a front-end separation step. Using plasma samples from genetically identical obese mice with or without type 2 diabetes (T2D), we validated the intra and intersample reproducibility of our method and its robustness for simultaneously detecting alterations in both polar and nonpolar metabolite features. Only 5 min is needed to acquire an ultra-high resolution mass spectrum in either a positive or negative ionization mode. Approximately 1000 metabolic features were reproducibly detected and annotated in each mouse plasma group. For significantly altered and highly abundant metabolite features, targeted tandem MS (MS/MS) analyses can be applied to confirm their identity. With this integrated platform, we successfully detected over 300 statistically significant metabolic features in T2D mouse plasma as compared to controls and identified new T2D biomarker candidates. This FIE-FTICR MS-based method is of high throughput and highly reproducible with great promise for metabolomics studies toward a better understanding and diagnosis of human diseases.
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Affiliation(s)
- Yanlong Zhu
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Benjamin Wancewicz
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Michael Schaid
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Research Service, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53705, United States
| | - Timothy N Tiambeng
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Kent Wenger
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Yutong Jin
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Heino Heyman
- Bruker Daltonics Inc., Billerica, Massachusetts 01821, United States
| | | | | | - Elizabeth D Cox
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin 53792, United States
| | - Dawn B Davis
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Research Service, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53705, United States
| | - Allan R Brasier
- Institute for Clinical and Translational Research, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States
| | - Michelle E Kimple
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Research Service, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53705, United States
| | - Ying Ge
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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10
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Yuan F, Kim S, Yin X, Zhang X, Kato I. Integrating Two-Dimensional Gas and Liquid Chromatography-Mass Spectrometry for Untargeted Colorectal Cancer Metabolomics: A Proof-of-Principle Study. Metabolites 2020; 10:metabo10090343. [PMID: 32854360 PMCID: PMC7569982 DOI: 10.3390/metabo10090343] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022] Open
Abstract
Untargeted metabolomics is expected to lead to a better mechanistic understanding of diseases and thus applications of precision medicine and personalized intervention. To further increase metabolite coverage and achieve high accuracy of metabolite quantification, the present proof-of-principle study was to explore the applicability of integration of two-dimensional gas and liquid chromatography-mass spectrometry (GC × GC-MS and 2DLC-MS) platforms to characterizing circulating polar metabolome extracted from plasma collected from 29 individuals with colorectal cancer in comparison with 29 who remained cancer-free. After adjustment of multiple comparisons, 20 metabolites were found to be up-regulated and 8 metabolites were found to be down-regulated, which pointed to the dysregulation in energy metabolism and protein synthesis. While integrating the GC × GC-MS and 2DLC-MS data can dramatically increase the metabolite coverage, this study had a limitation in analyzing the non-polar metabolites. Given the small sample size, these results need to be validated with a larger sample size and with samples collected prior to diagnostic and treatment. Nevertheless, this proof-of-principle study demonstrates the potential applicability of integration of these advanced analytical platforms to improve discrimination between colorectal cancer cases and controls based on metabolite profiles in future studies.
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Affiliation(s)
- Fang Yuan
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA; (F.Y.); (X.Y.); (X.Z.)
| | - Seongho Kim
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, USA;
- Biostatistics Core, Karmanos Cancer Institute, Wayne State University, Detroit, MI 48201, USA
| | - Xinmin Yin
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA; (F.Y.); (X.Y.); (X.Z.)
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA; (F.Y.); (X.Y.); (X.Z.)
| | - Ikuko Kato
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, USA;
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Correspondence: ; Tel.: +313-578-4206; Fax: +313-578-4306
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11
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Lin F, Sun J, Liu N, Zhu L. Phytotoxicity and metabolic responses induced by tetrachlorobiphenyl and its hydroxylated and methoxylated derivatives in rice (Oryza sative L.). ENVIRONMENT INTERNATIONAL 2020; 139:105695. [PMID: 32272295 DOI: 10.1016/j.envint.2020.105695] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/13/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Polychlorinated biphenyls (PCBs) and their biotransformation products, hydroxylated (OH-PCBs) and methoxylated derivatives (MeO-PCBs), have been detected in the environment and biota, especially crops. However, to date, little information is available on the phytotoxicity and metabolic responses induced by these chemicals in crops. In this study, we exposed rice (Oryza sative L.) seedlings to 2,3,4,5-tetrachlorobiphenyl (CB-61) and its hydroxylated (4'-OH-CB-61) and methoxylated derivatives (4'-MeO-CB-61) at 0, 10, 50, 100 and 500 μg/L, respectively. After exposure for 14 days, significantly growth inhibition and oxidative damage were observed, among which the toxicities of 4'-OH-CB-61 and 4'-MeO-CB-61 were greater than that of the parent PCBs. Metabolomics analysis indicated that exposure to the three chemicals induced different metabolic responses. 4'-MeO-CB-61 mainly affected the saccharide catabolism, including pyruvate metabolism, the TCA cycle, the transfer of acetyl groups into mitochondria and the Warburg effect, resulting in a greater energy consumption. Moreover, both CB-61 and 4'-OH-CB-61 promoted several amino acid metabolism and fatty acid biosynthesis, thereby alleviating the potential ROS damage. This study for the first time evaluates and reveals the phytotoxicity of OH-PCBs and MeO-PCBs at the metabolic level, which attempts to provide important information for accurately evaluating the environmental risks of PCBs from the perspective of metabolism.
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Affiliation(s)
- Fangjing Lin
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Jianteng Sun
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Na Liu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Lizhong Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China.
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12
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Abstract
Polychlorinated biphenyls (PCBs) have been associated with abnormal liver enzymes and suspected nonalcoholic fatty liver disease (NAFLD) in cohort studies. NAFLD affects greater than 25% of the global population and may result in liver-related mortality. Both dioxin-like and non-dioxin-like PCBs have been associated with NAFLD, but their effects and mechanisms differ. Dioxin-like PCBs altered the gut:liver axis and microbiome and caused hepatic steatosis by disrupting hepatic lipid metabolism. In contrast, NDL PCBs reduced the liver's protective responses to promote diet-induced NAFLD. Mechanisms included the disruption of phosphoprotein signaling resulting in altered nuclear receptor function.
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13
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Kim S, Yin X, Prodhan MAI, Zhang X, Zhong Z, Kato I. Global Plasma Profiling for Colorectal Cancer-Associated Volatile Organic Compounds: a Proof-of-Principle Study. J Chromatogr Sci 2019; 57:385-396. [PMID: 30796770 PMCID: PMC6478127 DOI: 10.1093/chromsci/bmz011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/14/2018] [Accepted: 01/24/2019] [Indexed: 12/12/2022]
Abstract
Volatile organic compounds (VOCs) could reflect changes resulting from ongoing pathophysiological processes and altered body metabolisms, and thus have been studied for various types of cancers. We aimed to test an advanced global metabolomic technique to characterize circulating VOCs in patients diagnosed with colorectal cancer (CRC). We employed solid-phase microextraction (SPME) and comprehensive two-dimensional gas chromatography mass-spectrometry (GC × GC-MS). We analyzed 30 random plasma samples from incident cases of CRC. The 30 samples were from population controls enrolled in a large population-based case-control study. The number of metabolite peaks detected in the cases was significantly lower than that detected in the controls (median 1530 vs. 1694, P = 0.02). Partial least squares-discriminant analysis showed clear VOC profile differences between the CRC and the controls. After adjustment for multiple comparisons at the 5% false discovery rate level, five VOCs were differentially expressed between the cases and the controls. Among these five VOCs, 2,3,4-trimethyl-hexane (decreased) and 2,4-dimethylhept-1-ene (increased) were both lipid peroxidation products but not previously reported for CRC. In summary, this study pointed to an intriguing observation that the richness of volatile metabolites may be reduced in CRC cases and demonstrated the utility of SPME GC × GC-MS in discovery of candidate markers for further validation.
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Affiliation(s)
- Seongho Kim
- Department of Oncology, Wayne State University School of Medicine, Detroit MI, USA
- Biostatistics Core, Karmanos Cancer Institute, Wayne State University, Detroit MI, USA
| | - Xinmin Yin
- Department of Chemistry, University of Louisville, Louisville, Kentucky, USA
| | | | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, Kentucky, USA
| | - Zichun Zhong
- Department of Computer Science, College of Engineering, Wayne State University, Detroit MI, USA
| | - Ikuko Kato
- Department of Oncology, Wayne State University School of Medicine, Detroit MI, USA
- Department of Pathology, Wayne State University School of Medicine, Detroit MI, USA
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14
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Hardesty JE, Wahlang B, Falkner KC, Shi H, Jin J, Zhou Y, Wilkey DW, Merchant ML, Watson CT, Feng W, Morris AJ, Hennig B, Prough RA, Cave MC. Proteomic Analysis Reveals Novel Mechanisms by Which Polychlorinated Biphenyls Compromise the Liver Promoting Diet-Induced Steatohepatitis. J Proteome Res 2019; 18:1582-1594. [PMID: 30807179 DOI: 10.1021/acs.jproteome.8b00886] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Environmental pollution contributes to fatty liver disease pathogenesis. Polychlorinated biphenyl (PCB) exposures have been associated with liver enzyme elevation and suspected steatohepatitis in cohort studies. Male mice treated with the commercial PCB mixture, Aroclor 1260 (20 mg/kg), and fed high fat diet (HFD) for 12 weeks developed steatohepatitis. Receptor-based modes of action including inhibition of the epidermal growth factor (EGF) receptor were previously proposed, but other mechanisms likely exist. Objectives were to identify and validate the pathways, transcription factors, and mechanisms responsible for the steatohepatitis associated with PCB and HFD coexposures. Comparative proteomics analysis was performed in archived mouse liver samples from the aforementioned chronic exposure study. Pathway and transcription factor analysis (TFA) was performed, and selected results were validated. Liver proteomics detected 1103 unique proteins. Aroclor 1260 upregulated 154 and downregulated 93 of these. Aroclor 1260 + HFD coexposures affected 55 pathways including glutathione metabolism, intermediary metabolism, and cytoskeletal remodeling. TFA of Aroclor 1260 treatment demonstrated alterations in the function of 42 transcription factors including downregulation of NRF2 and key nuclear receptors previously demonstrated to protect against steatohepatitis (e.g., HNF4α, FXR, PPARα/δ/γ, etc.). Validation studies demonstrated that Aroclor 1260 significantly reduced HNF4α protein levels, while Aroclor 1260 + HFD reduced expression of the HNF4α target gene, albumin, in vivo. Aroclor 1260 attenuated EGF-dependent HNF4α phosphorylation and target gene activation in vitro. Aroclor 1260 reduced levels of NRF2, its target genes, and glutathione in vivo. Aroclor 1260 attenuated EGF-dependent NRF2 upregulation, in vitro. Aroclor 1260 indirectly activated hepatic stellate cells in vitro via induction of hepatocyte-derived TGFβ. PCB exposures adversely impacted transcription factors regulating liver protection, function, and fibrosis. PCBs, thus, compromised the liver by reducing its protective responses against nutritional stress to promote diet-induced steatohepatitis. The identified mechanisms by which environmental pollutants influence fatty liver disease pathogenesis require confirmation in humans.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Andrew J Morris
- Superfund Research Center , University of Kentucky , Lexington , Kentucky 40536 , United States
| | - Bernhard Hennig
- Superfund Research Center , University of Kentucky , Lexington , Kentucky 40536 , United States
| | | | - Matthew C Cave
- The Robley Rex Veterans Affairs Medical Center , Louisville , Kentucky 40206 , United States.,The Jewish Hospital Liver Transplant Program , Louisville , Kentucky 40202 , United States
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15
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Clair HB, Pinkston CM, Rai SN, Pavuk M, Dutton ND, Brock GN, Prough RA, Falkner KC, McClain CJ, Cave MC. Liver Disease in a Residential Cohort With Elevated Polychlorinated Biphenyl Exposures. Toxicol Sci 2018; 164:39-49. [PMID: 29684222 PMCID: PMC6016643 DOI: 10.1093/toxsci/kfy076] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Endocrine and metabolism disrupting chemicals (EDCs/MDCs) have been associated with environmental liver diseases including toxicant-associated steatohepatitis (TASH). TASH has previously been characterized by hepatocellular necrosis, disrupted intermediary metabolism, and liver inflammation. Polychlorinated biphenyls (PCBs) are environmental EDCs/MDCs associated with the genesis and progression of steatohepatitis in animal models and human liver injury in epidemiology studies. The cross-sectional Anniston Community Health Survey (ACHS) investigates ortho-substituted PCB exposures and health effects near a former PCB manufacturing complex. The rates of obesity, diabetes, and dyslipidemia were previously determined to be high in ACHS. In this study, 738 ACHS participants were categorized by liver disease status using the serum cytokeratin 18 biomarker. Associations between PCB exposures and mechanistic biomarkers of intermediary metabolism, inflammation, and hepatocyte death were determined. The liver disease prevalence was high (60.2%), and 80.7% of these individuals were categorized as having TASH. Sex and race/ethnicity differences were noted. TASH was associated with increased exposures to specific PCB congeners, insulin resistance, dyslipidemia, proinflammatory cytokines, and liver necrosis. These findings are consistent with PCB-related steatohepatitis. ΣPCBs was inversely associated with insulin resistance/production, leptin, and hepatocyte apoptosis, while other adipocytokines were increased. This is possibly the largest environmental liver disease study applying mechanistic biomarkers ever performed and the most comprehensive analysis of PCBs and adipocytokines. It provides insight into the mechanisms of PCB-related endocrine and metabolic disruption in liver disease and diabetes. In the future, associations between additional exposures and liver disease biomarkers will be evaluated in the ACHS and follow-up ACHS-II studies.
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Affiliation(s)
- Heather B Clair
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky 40202
| | - Christina M Pinkston
- Department of Bioinformatics and Biostatistics, School of Public Health and Information Sciences
- Biostatistics Shared Facility, James Graham Brown Cancer Center
- Hepatobiology and Toxicology COBRE Program, University of Louisville, Louisville, Kentucky 40202
| | - Shesh N Rai
- Department of Bioinformatics and Biostatistics, School of Public Health and Information Sciences
- Biostatistics Shared Facility, James Graham Brown Cancer Center
- Hepatobiology and Toxicology COBRE Program, University of Louisville, Louisville, Kentucky 40202
| | - Marian Pavuk
- Agency for Toxic Substances and Disease Registry (ATSDR), Atlanta, Georgia 30341
| | - Nina D Dutton
- Oak Ridge Institute for Science and Education (ORISE) Research Participant, ATSDR, Atlanta, Georgia 30341
| | - Guy N Brock
- Department of Bioinformatics and Biostatistics, School of Public Health and Information Sciences
| | - Russell A Prough
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky 40202
| | - Keith Cameron Falkner
- Hepatobiology and Toxicology COBRE Program, University of Louisville, Louisville, Kentucky 40202
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky 40202
- University of Louisville Alcohol Research Center, Louisville, Kentucky
| | - Craig J McClain
- Hepatobiology and Toxicology COBRE Program, University of Louisville, Louisville, Kentucky 40202
- Oak Ridge Institute for Science and Education (ORISE) Research Participant, ATSDR, Atlanta, Georgia 30341
- University of Louisville Alcohol Research Center, Louisville, Kentucky
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky 40202
- The Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky 40206
- The KentuckyOne Health Jewish Hospital Liver Transplant Program, Louisville, Kentucky 40202
| | - Matthew C Cave
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, Kentucky 40202
- Hepatobiology and Toxicology COBRE Program, University of Louisville, Louisville, Kentucky 40202
- Oak Ridge Institute for Science and Education (ORISE) Research Participant, ATSDR, Atlanta, Georgia 30341
- University of Louisville Alcohol Research Center, Louisville, Kentucky
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky 40202
- The Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky 40206
- The KentuckyOne Health Jewish Hospital Liver Transplant Program, Louisville, Kentucky 40202
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16
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Prodhan MAI, Sleman AA, Kim S, McClain C, Zhang X. Generalization of Reference System for Calculating the Second Dimension Retention Index in GC × GC–MS. JOURNAL OF ANALYSIS AND TESTING 2018. [DOI: 10.1007/s41664-018-0074-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Metabolomics coupled with pathway analysis characterizes metabolic changes in response to BDE-3 induced reproductive toxicity in mice. Sci Rep 2018; 8:5423. [PMID: 29615664 PMCID: PMC5882662 DOI: 10.1038/s41598-018-23484-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 03/06/2018] [Indexed: 12/21/2022] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) may affect male reproductive function. 4-bromodiphenyl ether (BDE-3), the photodegradation products of higher brominated PBDEs, is the most fundamental mono-BDE in environment but is less studied. The purpose of this study was to investigate the reproductive toxicity induced by BDE-3 and explore the mechanism by metabolomics approach. In this study, mice were treated intragastrically with BDE-3 for consecutive six weeks at the dosages of 0.0015, 1.5, 10 and 30 mg/kg. The reproductive toxicity was evaluated by sperm analysis and histopathology examinations. UPLC-Q-TOF/MS was applied to profile the metabolites of testis tissue, urine and serum samples in the control and BDE-3 treated mice. Results showed the sperm count was dose-dependently decreased and percentage of abnormal sperms increased by the treatment of BDE-3. Histopathology examination also revealed changes in seminiferous tubules and epididymides in BDE-3 treated mice. Metabolomics analysis revealed that different BDE-3 groups showed metabolic disturbances to varying degrees. We identified 76, 38 and 31 differential metabolites in testis tissue, urine and serum respectively. Pathway analysis revealed several pathways including Tyrosine metabolism, Purine metabolism and Riboflavin metabolism, which may give a possible explanation for the toxic mechanism of BDE-3. This study indicates that UHPLC-Q-TOFMS-based metabolomics approach provided a better understanding of PBDEs-induced toxicity dynamically.
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18
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Prodhan MAI, Yin X, Kim S, McClain C, Zhang X. Surface fitting for calculating the second dimension retention index in comprehensive two-dimensional gas chromatography mass spectrometry. J Chromatogr A 2018; 1539:62-70. [PMID: 29395161 PMCID: PMC5826898 DOI: 10.1016/j.chroma.2018.01.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 11/21/2022]
Abstract
Comprehensive two-dimensional gas chromatography mass spectrometry (GC × GC-MS) has been widely used for analysis of volatile compounds. However, the second dimension retention index (I) of each compound is not widely used to aid compound identification owing to the limited accuracy of I calculation. We report a surface fitting approach to the calculation of I using n-alkanes (C7-C30) as references, where the second dimension retention time (2tR) and the second dimension column temperature (2Te) formed the X-Y plane and the I was the Z-axis to form the I surface. Compared to the conventional approach for calculating I using isovolatility curves, the surface fitting approach eliminated the construction of isovolatility curves for the reference compounds and gives better reproducibility. The goodness of the proposed surface fitting achieved R2 = 0.9999 and RMSE = 6.1 retention index units (iu). Ten-fold cross validation demonstrated the surface fitting approach had a good predictability with average R2 = 0.9999 and RMSE = 6.6 iu. The developed method was also applied to calculate the second dimension retention indices of compound standards in two commercial mixtures MegaMix A and MegaMix B. The mean standard deviation of the calculated I was only 1.6 iu for compounds in MegaMix A and 3.4 iu for compounds in MegaMix B. Compared with the literature results, the small value of standard deviation in the calculated retention index using surface fitting method shows that the surface fitting method has less measurement variability than the conventional isovolatility curve approach.
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Affiliation(s)
- Md Aminul Islam Prodhan
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA; University of Louisville Alcohol Research Center, Louisville, KY 40208, USA; University of Louisville Hepatobiology & Toxicology Program, Louisville, KY 40208, USA; Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY 40208, USA
| | - Xinmin Yin
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA; University of Louisville Alcohol Research Center, Louisville, KY 40208, USA; University of Louisville Hepatobiology & Toxicology Program, Louisville, KY 40208, USA; Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY 40208, USA
| | - Seongho Kim
- Biostatistics Core, Karmanos Cancer Institute, Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Craig McClain
- University of Louisville Alcohol Research Center, Louisville, KY 40208, USA; University of Louisville Hepatobiology & Toxicology Program, Louisville, KY 40208, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40208, USA; Department of Medicine, University of Louisville, Louisville, KY 40208, USA; Robley Rex Louisville VAMC, Louisville, KY 40292, USA
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, KY 40208, USA; University of Louisville Alcohol Research Center, Louisville, KY 40208, USA; University of Louisville Hepatobiology & Toxicology Program, Louisville, KY 40208, USA; Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY 40208, USA; Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40208, USA.
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19
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Deierlein AL, Rock S, Park S. Persistent Endocrine-Disrupting Chemicals and Fatty Liver Disease. Curr Environ Health Rep 2018; 4:439-449. [PMID: 28980219 DOI: 10.1007/s40572-017-0166-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW Non-alcoholic fatty liver disease (NAFLD) is the most prominent chronic liver disease in Western countries, affecting approximately 25% of the population worldwide. Sex-specific differences in the development of NAFLD are apparent. While obesity and insulin resistance are major contributors to the increasing prevalence of NAFLD, a growing body of literature suggests that exposure to persistent endocrine-disrupting chemicals (pEDCs) may also play a role. This review summarizes recent (2011 and later) scientific literature investigating exposures to pEDCs, specifically persistent organic pollutants (POPs), and NAFLD, with a focus on sex-specific associations. RECENT FINDINGS The overwhelming majority of studies were conducted in single-sex animal models and provide biological evidence that exposures to 2,3,7,8-tetrachlorodibenzo-p-dioxin polychlorinated biphenyls, and other POPs or POP mixtures are negatively associated with liver health. There were four cross-sectional epidemiological studies in humans that reported associations for several POPs, including polychlorinated biphenyls and perfluorinated chemicals, with elevated liver enzymes. Only one of these studies, using a sample of gastric bypass surgery patients, examined sex-specific associations of POPs and liver enzymes, finding adverse associations among women only. The noticeable lack of studies investigating how differences (i.e., biochemical, physiological, and behavioral) between men and women may influence associations of pEDCs and NAFLD represents a large research gap in environmental health. Sexual dimorphism in metabolic processes throughout the body, including the liver, is established but often overlooked in the designs and analyses of studies. Other factors identified in this review that may also act to modulate associations of environmental chemicals and NAFLD are reproductive status and dietary nutrient intakes, which also remain understudied in the literature. Despite knowledge of sexual dimorphism in the actions of pEDCs, as well as in metabolic processes related to NAFLD development, few experimental or epidemiological studies have investigated sex-dependent associations. Future studies, especially those in humans, should be designed to address this research need. Consideration of other factors, such as reproductive status, dietary intakes, and mixtures of chemicals with varying endocrine-disrupting capabilities, should be explored.
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Affiliation(s)
- Andrea L Deierlein
- College of Global Public Health, New York University, 715/719 Broadway 12th Floor, New York, NY, 10003, USA.
| | - Sarah Rock
- College of Global Public Health, New York University, 715/719 Broadway 12th Floor, New York, NY, 10003, USA
| | - Sally Park
- College of Global Public Health, New York University, 715/719 Broadway 12th Floor, New York, NY, 10003, USA
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A review of nanoscale LC-ESI for metabolomics and its potential to enhance the metabolome coverage. Talanta 2018; 182:380-390. [PMID: 29501168 DOI: 10.1016/j.talanta.2018.01.084] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 12/22/2022]
Abstract
Liquid chromatography-electrospray ionisation-mass spectrometry (LC-ESI-MS) platforms are widely used to perform high throughput untargeted profiling of biological samples for metabolomics-based approaches. However, these LC-ESI platforms usually favour the detection of metabolites present at relatively high concentrations because of analytical limitations such as ion suppression, thus reducing overall sensitivity. To counter this issue of sensitivity, the latest in terms of analytical platforms can be adopted to enable a greater portion of the metabolome to be analysed in a single analytical run. Here, nanoflow liquid chromatography-nanoelectrospray ionisation (nLC-nESI), which has previously been utilised successfully in proteomics, is explored for use in metabolomic and exposomic research. As a discovery based field, the markedly increased sensitivity of these nLC-nESI platforms offer the potential to uncover the roles played by low abundant signalling metabolites (e.g. steroids, eicosanoids) in health and disease studies, and would also enable an improvement in the detection of xenobiotics present at trace levels in biological matrices to better characterise the chemical exposome. This review aims to give an insight into the advantages associated with nLC-nESI for metabolomics-based approaches. Initially we detail the source of improved sensitivity prior to reviewing the available approaches to achieving nanoflow rates and nanospray ionisation for metabolomics. The robustness of nLC-nESI platforms was then assessed using the literature available from a metabolomic viewpoint. We also discuss the challenging point of sample preparation which needs to be addressed to fully enjoy the benefits of these nLC-nESI platforms. Finally, we assess metabolomic analysis utilising nano scale platforms and look ahead to the future of metabolomics using these new highly sensitive platforms.
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21
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Blum BC, Mousavi F, Emili A. Single-platform ‘multi-omic’ profiling: unified mass spectrometry and computational workflows for integrative proteomics–metabolomics analysis. Mol Omics 2018; 14:307-319. [DOI: 10.1039/c8mo00136g] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Advances in instrumentation and analysis tools are permitting evermore comprehensive interrogation of diverse biomolecules and allowing investigators to move from linear signaling cascades to network models, which more accurately reflect the molecular basis of biological systems and processes.
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Affiliation(s)
- Benjamin C. Blum
- Center for Network Systems Biology
- Boston University School of Medicine
- Boston
- USA
- Department of Biochemistry
| | - Fatemeh Mousavi
- Donnelly Centre
- Department of Molecular Genetics
- University of Toronto
- Toronto
- Canada
| | - Andrew Emili
- Center for Network Systems Biology
- Boston University School of Medicine
- Boston
- USA
- Department of Biochemistry
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22
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Kania-Korwel I, Wu X, Wang K, Lehmler HJ. Identification of lipidomic markers of chronic 3,3',4,4',5-pentachlorobiphenyl (PCB 126) exposure in the male rat liver. Toxicology 2017; 390:124-134. [PMID: 28890136 PMCID: PMC5633524 DOI: 10.1016/j.tox.2017.09.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/28/2017] [Accepted: 09/05/2017] [Indexed: 12/14/2022]
Abstract
Exposure to PCB 126, an environmentally relevant aryl hydrocarbon receptor agonist, is an environmental factor causing hepatic steatosis in rodent models; however, the lipidome of PCB 126-exposed rats has not been investigated in-depth. The objective of the present study was therefore to characterize dose-dependent changes in the lipid profile in the liver of male Sprague-Dawley rats exposed to PCB 126. Rats were exposed for three month to intraperitoneal injections of 0.01, 0.05 and 0.2μmol/kg bw PCB 126 in corn oil. Control animals were exposed in parallel and received corn oil alone. Lipids were extracted from whole liver homogenate and levels of polar lipids and fatty acids incorporated into triglycerides (FATAGs) were determined with tandem mass spectrometry using electrospray ionization. PCB 126 exposure increased the hepatic content of polar lipids and FATAGs. Protein adjusted levels of several polar lipid classes, in particular phosphatidylserine levels, decreased, whereas FATAGs levels typically increased with increasing PCB 126 dose. Sensitive, dose-dependent endpoints of PCB 126 exposure included an increase in levels of adrenic acid incorporated into triglycerides and changes in levels of certain ether-linked phospholipid and 1-alkyl/1-alkenyldiacylglycerol species, as determined using partial least square discriminant analysis (PLS-DA) and ANOVA. These changes in the composition of polar lipids and fatty acid in the liver of PCB 126 exposed rats identified several novel markers of PCB 126-mediated fatty liver disease that need to be validated in further studies.
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Affiliation(s)
- Izabela Kania-Korwel
- Department of Occupational Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Xianai Wu
- Department of Occupational Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Kai Wang
- Department of Biostatistics, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Hans-Joachim Lehmler
- Department of Occupational Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA.
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23
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Zhang P, Zhu W, Wang D, Yan J, Wang Y, Zhou Z, He L. A combined NMR- and HPLC-MS/MS-based metabolomics to evaluate the metabolic perturbations and subacute toxic effects of endosulfan on mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:18870-18880. [PMID: 28653198 DOI: 10.1007/s11356-017-9534-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 06/13/2017] [Indexed: 06/07/2023]
Abstract
Endosulfan is the newly persistent organic pollutants (POPs) added to the Stockholm Convention as its widespread use, persistence, bioaccumulation, long-range transport, endocrine disruption, and toxicity related to various adverse effects. In the present study, male mice were administrated endosulfan at 0, 0.5, and 3.5 mg/kg by gavage for 2 weeks. 1H-NMR-based urinary metabolomics, HPLC-MS/MS-based targeted serum metabolomics, clinical analysis, and histopathology techniques were employed to evaluate the metabolic perturbations of subacute endosulfan exposure. Endosulfan exposures resulted in weight loss, liver inflammation and necrosis, and alterations in serum amino acids and urine metabolomics. Based on altered metabolites, several significantly perturbed pathways were identified including glycine, serine, and threonine metabolism; TCA cycle; pyruvate metabolism; glycolysis or gluconeogenesis; glycerophospholipid metabolism; and glyoxylate and dicarboxylate metabolism. Such pathways were highly related to amino acid metabolism, energy metabolism, and lipid metabolism. In addition, metabolomic results also demonstrated that gut microbiota was remarkably altered after endosulfan exposure. These observations may provide novel insight into revealing the potential toxic mechanism and evaluating the health risk of endosulfan exposure at metabolomic level.
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Affiliation(s)
- Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400715, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Wentao Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Dezhen Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Jin Yan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yao Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400715, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, 400715, China.
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Eguchi A, Sakurai K, Watanabe M, Mori C. Exploration of potential biomarkers and related biological pathways for PCB exposure in maternal and cord serum: A pilot birth cohort study in Chiba, Japan. ENVIRONMENT INTERNATIONAL 2017; 102:157-164. [PMID: 28262321 DOI: 10.1016/j.envint.2017.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/21/2017] [Accepted: 02/23/2017] [Indexed: 05/21/2023]
Abstract
Polychlorinated biphenyls (PCBs) have been associated with adverse human reproductive and fetal developmental measures or outcomes because of their endocrine-disrupting effects; however, the biological mechanisms of adverse effects of PCB exposure in humans are not currently well established. In this study, we aimed to identify the biological pathways and potential biomarkers of PCB exposure in maternal and umbilical cord serum using a hydrophilic interaction chromatography-tandem mass spectrometry (HILIC-MS/MS) metabolomics platform. The median concentration of total PCBs in maternal (n=93) and cord serum (n=93) were 350 and 70pgg-1 wet wt, respectively. PCB levels in maternal and fetal serum from the Chiba Study of Mother and Children's Health (C-MACH) cohort are comparable to those of earlier cohort studies conducted in Japan, the USA, and European countries. We used the random forest model with the metabolome profile to predict exposure levels of PCB (first quartile [Q1] and fourth quartile [Q4]) for pregnant women and fetuses. In the prediction model for classification of Q1 versus Q4 (area-under-curve [AUC]: pregnant women=0.812 and fetuses=0.919), citraconic acid level in maternal serum and ethanolamine, p-hydroxybenzoate, and purine levels in cord serum had >0.70 AUC values. These candidate biomarkers and metabolite included in composited models were related to glutathione and amino acid metabolism in maternal serum and the amino acid metabolism and ubiquinone and other terpenoid-quinone biosynthesis in cord serum (FDR <0.10), indicating disruption of metabolic pathways by PCB exposure in pregnant women and fetuses. These results showed that metabolome analysis might be useful to explore potential biomarkers and related biological pathways for PCB exposure. Thus, more detailed studies are needed to verify sensitivity of the biomarkers and clarify the biochemical changes resulting from PCB exposure.
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Affiliation(s)
- Akifumi Eguchi
- Chiba University, Center for Preventive Medical Sciences, Inage-ku Yayoi-cho 1-33, Chiba, Japan
| | - Kenichi Sakurai
- Chiba University, Center for Preventive Medical Sciences, Inage-ku Yayoi-cho 1-33, Chiba, Japan
| | - Masahiro Watanabe
- Chiba University, Center for Preventive Medical Sciences, Inage-ku Yayoi-cho 1-33, Chiba, Japan
| | - Chisato Mori
- Chiba University, Center for Preventive Medical Sciences, Inage-ku Yayoi-cho 1-33, Chiba, Japan; Chiba University, Department of Bioenvironmental Medicine, Graduate School of Medicine, Chuo-ku Inohana 1-8-1, Chiba, Japan.
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Dong S, Zhan ZY, Cao HY, Wu C, Bian YQ, Li JY, Cheng GH, Liu P, Sun MY. Urinary metabolomics analysis identifies key biomarkers of different stages of nonalcoholic fatty liver disease. World J Gastroenterol 2017; 23:2771-2784. [PMID: 28487615 PMCID: PMC5403757 DOI: 10.3748/wjg.v23.i15.2771] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/13/2017] [Accepted: 02/17/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To identify a panel of biomarkers that can distinguish between non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), and explore molecular mechanism involved in the process of developing NASH from NAFLD.
METHODS Biomarkers may differ during stages of NAFLD. Urine and blood were obtained from non-diabetic subjects with NAFLD and steatosis, with normal liver function (n = 33), from patients with NASH, with abnormal liver function (n = 45), and from healthy age and sex-matched controls (n = 30). Samples were subjected to metabolomic analysis to identify potential non-invasive biomarkers. Differences in urinary metabolic profiles were analyzed using liquid chromatography tandem mass spectrometry with principal component analysis and partial least squares-discriminate analysis.
RESULTS Compared with NAFLD patients, patients with NASH had abnormal liver function and high serum lipid concentrations. Urinary metabonomics found differences in 31 metabolites between these two groups, including differences in nucleic acids and amino acids. Pathway analysis based on overlapping metabolites showed that pathways of energy and amino acid metabolism, as well as the pentose phosphate pathway, were closely associated with pathological processes in NAFLD and NASH.
CONCLUSION These findings suggested that a panel of biomarkers could distinguish between NAFLD and NASH, and could help to determine the molecular mechanism involved in the process of developing NASH from NAFLD. Urinary biomarkers may be diagnostic in these patients and could be used to assess responses to therapeutic interventions.
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Li B, Tang J, Yang Q, Cui X, Li S, Chen S, Cao Q, Xue W, Chen N, Zhu F. Performance Evaluation and Online Realization of Data-driven Normalization Methods Used in LC/MS based Untargeted Metabolomics Analysis. Sci Rep 2016; 6:38881. [PMID: 27958387 PMCID: PMC5153651 DOI: 10.1038/srep38881] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/15/2016] [Indexed: 02/06/2023] Open
Abstract
In untargeted metabolomics analysis, several factors (e.g., unwanted experimental & biological variations and technical errors) may hamper the identification of differential metabolic features, which requires the data-driven normalization approaches before feature selection. So far, ≥16 normalization methods have been widely applied for processing the LC/MS based metabolomics data. However, the performance and the sample size dependence of those methods have not yet been exhaustively compared and no online tool for comparatively and comprehensively evaluating the performance of all 16 normalization methods has been provided. In this study, a comprehensive comparison on these methods was conducted. As a result, 16 methods were categorized into three groups based on their normalization performances across various sample sizes. The VSN, the Log Transformation and the PQN were identified as methods of the best normalization performance, while the Contrast consistently underperformed across all sub-datasets of different benchmark data. Moreover, an interactive web tool comprehensively evaluating the performance of 16 methods specifically for normalizing LC/MS based metabolomics data was constructed and hosted at http://server.idrb.cqu.edu.cn/MetaPre/. In summary, this study could serve as a useful guidance to the selection of suitable normalization methods in analyzing the LC/MS based metabolomics data.
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Affiliation(s)
- Bo Li
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Jing Tang
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Qingxia Yang
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xuejiao Cui
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Shuang Li
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Sijie Chen
- College of Mathematics and Statistics, Chongqing University, Chongqing 401331, China
| | - Quanxing Cao
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Weiwei Xue
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Na Chen
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Feng Zhu
- Innovative Drug Research and Bioinformatics Group, Innovative Drug Research Centre and School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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Maisano M, Cappello T, Oliva S, Natalotto A, Giannetto A, Parrino V, Battaglia P, Romeo T, Salvo A, Spanò N, Mauceri A. PCB and OCP accumulation and evidence of hepatic alteration in the Atlantic bluefin tuna, T. thynnus, from the Mediterranean Sea. MARINE ENVIRONMENTAL RESEARCH 2016; 121:40-48. [PMID: 27012897 DOI: 10.1016/j.marenvres.2016.03.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 03/07/2016] [Accepted: 03/13/2016] [Indexed: 06/05/2023]
Abstract
Persistent organic pollutants (POPs) are known to act as "obesogens", being fat-soluble and affecting lipid metabolism. The Atlantic bluefin tuna, Thunnus thynnus, are top pelagic predators prone to bioaccumulate and biomagnify environmental contaminants. This study aimed at evaluating POPs-induced ectopic lipid accumulation in liver of adult tuna from the Mediterranean Sea. PCBs and organochlorine pesticides were measured in tuna liver, and marked morphological changes observed, namely poorly compacted tissues, intense vacuolization, erythrocyte infiltration and presence of melanomacrophages. The expression of perilipin, a lipid-droplet marker, positively correlated with the gene expression of PPARγ, a master regulator of adipogenesis, and its heterodimeric partner, RXRα. Changes in metabolites involved in fatty acid biosynthesis and ketogenesis were also observed. Although male bluefin tuna appeared to be more sensitive than females to the adverse effects of environmental obesogens, the alterations observed in tuna liver of both sexes suggest a potential onset of hepatic steatosis.
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Affiliation(s)
- Maria Maisano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Sabrina Oliva
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Antonino Natalotto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Alessia Giannetto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Vincenzo Parrino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Pietro Battaglia
- ISPRA, Institute for Environmental Protection and Research, Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy
| | - Teresa Romeo
- ISPRA, Institute for Environmental Protection and Research, Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy
| | - Andrea Salvo
- Department of Environmental Sciences, Security, Territory, Food and Health, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Nunziacarla Spanò
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Angela Mauceri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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Castillo-Peinado LS, Luque de Castro MD. Present and foreseeable future of metabolomics in forensic analysis. Anal Chim Acta 2016; 925:1-15. [PMID: 27188312 DOI: 10.1016/j.aca.2016.04.040] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/12/2016] [Accepted: 04/17/2016] [Indexed: 01/24/2023]
Abstract
The revulsive publications during the last years on the precariousness of forensic sciences worldwide have promoted the move of major steps towards improvement of this science. One of the steps (viz. a higher involvement of metabolomics in the new era of forensic analysis) deserves to be discussed under different angles. Thus, the characteristics of metabolomics that make it a useful tool in forensic analysis, the aspects in which this omics is so far implicit, but not mentioned in forensic analyses, and how typical forensic parameters such as the post-mortem interval or fingerprints take benefits from metabolomics are critically discussed in this review. The way in which the metabolomics-forensic binomial succeeds when either conventional or less frequent samples are used is highlighted here. Finally, the pillars that should support future developments involving metabolomics and forensic analysis, and the research required for a fruitful in-depth involvement of metabolomics in forensic analysis are critically discussed.
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Affiliation(s)
- L S Castillo-Peinado
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain; University of Córdoba, Agrifood Excellence Campus, ceiA3, Spain; Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, E-14071, Córdoba, Spain
| | - M D Luque de Castro
- Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Córdoba, Córdoba, Spain; University of Córdoba, Agrifood Excellence Campus, ceiA3, Spain; Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía University Hospital, University of Córdoba, E-14071, Córdoba, Spain.
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He J, Li G, Chen J, Lin J, Zeng C, Chen J, Deng J, Xie P. Prolonged exposure to low-dose microcystin induces nonalcoholic steatohepatitis in mice: a systems toxicology study. Arch Toxicol 2016; 91:465-480. [PMID: 26984711 DOI: 10.1007/s00204-016-1681-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/09/2016] [Indexed: 12/20/2022]
Abstract
Microcystin-LR (MCLR), a cyanotoxin widely present in freshwater, has been shown to have potent acute hepatotoxicity. However, the chronic toxicity of low-dose MCLR remains confusing by traditional measurements of toxicity. This has impeded understanding of the chronic liver damage of low-dose MCLR and corresponding safety risks of the human exposure guideline value. Here, iTRAQ-based proteomics and NMR-based metabonomics were used to decipher the molecular toxicological signatures of low doses of MCLR in mice exposed to this agent for 90 days. Low levels of MCLR, even under the reported no observed adverse effect level, significantly altered hepatic protein expression, especially of proteins associated with lipid metabolism, transport, immune and proteolysis. Coherently, MCLR induced marked perturbations in lipid metabolites in both liver and serum. Integrated analysis of proteomic, metabolic, histological and cytokine profiles revealed that MCLR significantly inhibited fatty acid β-oxidation and hepatic lipoprotein secretion and promoted hepatic inflammation, resulting in nonalcoholic steatohepatitis disease (NASH). These findings for the first time provide compelling evidence that chronic exposure to low-level MCLR can induce NASH. These results also indicate that current guidelines for MCs in drinking water may be inadequate and associated with risks to human health.
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Affiliation(s)
- Jun He
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Donghu South Road 7, Wuhan, 430072, People's Republic of China
| | - Guangyu Li
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Jun Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Donghu South Road 7, Wuhan, 430072, People's Republic of China
| | - Juan Lin
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Donghu South Road 7, Wuhan, 430072, People's Republic of China
| | - Cheng Zeng
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Jing Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Donghu South Road 7, Wuhan, 430072, People's Republic of China
| | - Junliang Deng
- Shanghai Biotree Biotech Co., Ltd, Shanghai, 200433, People's Republic of China
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Donghu South Road 7, Wuhan, 430072, People's Republic of China.
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The Need for Biomarkers in Diagnosis and Prognosis of Drug-Induced Liver Disease: Does Metabolomics Have Any Role? BIOMED RESEARCH INTERNATIONAL 2015; 2015:386186. [PMID: 26824035 PMCID: PMC4707380 DOI: 10.1155/2015/386186] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/02/2015] [Indexed: 12/13/2022]
Abstract
Drug-induced liver injury (DILI) is a potentially fatal adverse event and the leading cause of acute liver failure in the US and in the majority of Europe. The liver can be affected directly, in a dose-dependent manner, or idiosyncratically, independently of the dose, and therefore unpredictably. Currently, DILI is a diagnosis of exclusion that physicians should suspect in patients with unexplained elevated liver enzymes. Therefore, new diagnostic and prognostic biomarkers are necessary to achieve an early and reliable diagnosis of DILI and thus improve the prognosis. Although several DILI biomarkers have been found through analytical and genetic tests and pharmacokinetic approaches, none of them have been able to display enough specificity and sensitivity, so new approaches are needed. In this sense, metabolomics is a strongly and promising emerging field that, from biofluids collected through minimally invasive procedures, can obtain early biomarkers of toxicity, which may constitute specific indicators of liver damage.
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Joshi-Barve S, Kirpich I, Cave MC, Marsano LS, McClain CJ. Alcoholic, Nonalcoholic, and Toxicant-Associated Steatohepatitis: Mechanistic Similarities and Differences. Cell Mol Gastroenterol Hepatol 2015; 1:356-367. [PMID: 28210688 PMCID: PMC5301292 DOI: 10.1016/j.jcmgh.2015.05.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/27/2015] [Indexed: 12/12/2022]
Abstract
Hepatic steatosis and steatohepatitis are common histologic findings that can be caused by multiple etiologies. The three most frequent causes for steatosis/steatohepatitis are alcohol (alcoholic steatohepatitis, ASH), obesity/metabolic syndrome (nonalcoholic steatohepatitis, NASH), and environmental toxicants (toxicant-associated steatohepatitis, TASH). Hepatic steatosis is an early occurrence in all three forms of liver disease, and they often share common pathways to disease progression/severity. Disease progression is a result of both direct effects on the liver as well as indirect alterations in other organs/tissues such as intestine, adipose tissue, and the immune system. Although the three liver diseases (ASH, NASH, and TASH) share many common pathogenic mechanisms, they also exhibit distinct differences. Both shared and divergent mechanisms can be potential therapeutic targets. This review provides an overview of selected important mechanistic similarities and differences in ASH, NASH, and TASH.
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Key Words
- ALD, alcoholic liver disease
- ALT, alanine aminotransferase
- ASH, alcoholic steatohepatitis
- AST, aspartate transaminase
- Alcoholic Steatohepatitis
- BMI, body mass index
- CYP2E1, cytochrome P450 isoform 2E1
- ECM, extracellular matrix
- ER, endoplasmic reticulum
- HCC, hepatocellular carcinoma
- HDAC, histone deacetylase
- HSC, hepatic stellate cell
- IL, interleukin
- LA, linoleic acid
- LPS, lipopolysaccharide
- Mechanisms
- NAFLD, nonalcoholic fatty liver disease
- NASH, nonalcoholic steatohepatitis
- NK, natural killer
- NKT, natural killer T
- Nonalcoholic Steatohepatitis
- OXLAM, oxidized linoleic acid metabolite
- PAI-1, plasminogen activator inhibitor-1
- PCB153, 2,2′,4,4′,5,5′-hexachlorobiphenyl
- PPAR, peroxisome proliferator-activated receptor
- RNS, reactive nitrogen species
- SNP, single-nucleotide polymorphism
- TAFLD, toxicant-associated fatty liver disease
- TASH, toxicant-associated steatohepatitis
- TCDD, 2,3,7,8-tetrachlorodibenzo-p-dioxin
- TH, helper T cell
- TLR, Toll-like receptor
- TNF, tumor necrosis factor
- Toxicant-Associated Steatohepatitis
- VA, U.S. Department of Veterans Affairs/Veterans Administration
- miR, microRNA
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Affiliation(s)
- Swati Joshi-Barve
- Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Irina Kirpich
- Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Matthew C. Cave
- Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky,Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky
| | - Luis S. Marsano
- Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky,Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky
| | - Craig J. McClain
- Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky,Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, Kentucky,Robley Rex Veterans Affairs Medical Center, Louisville, Kentucky,Correspondence Address correspondence to: Craig J. McClain, MD, University of Louisville, 505 South Hancock Street, Louisville, Kentucky 40292. fax: (502) 852-8927.
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Looße C, Galozzi S, Debor L, Julsing MK, Bühler B, Schmid A, Barkovits K, Müller T, Marcus K. Direct infusion-SIM as fast and robust method for absolute protein quantification in complex samples. EUPA OPEN PROTEOMICS 2015. [DOI: 10.1016/j.euprot.2015.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Li M, Wu T, Ji G, Zheng PY. Applications of metabolomics technology in traditional Chinese medicine treatment of non-alcoholic fatty liver disease. Shijie Huaren Xiaohua Zazhi 2015; 23:1045-1051. [DOI: 10.11569/wcjd.v23.i7.1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the most common chronic liver disease and is related to many insulin resistance-related diseases such as obesity, type 2 diabetes, hyperlipidemia and hypertensive disease, seriously threatening human health. Metabolomics focuses on understanding functional activities from an integrated perspective; it is similar to the holistic thinking of traditional Chinese medicine (TCM). Metabolomics in TCM is mainly applied to the prevention and diagnosis of diseases, classification of syndromes and evaluation of therapeutic efficacy. In this article, we will review the applications of metabolomics technology in disease diagnosis, pathogenesis research, risk evaluation, syndrome classification and therapy of NAFLD based on TCM theory. Furthermore, we suggest that metabolomics could be used to provide a basis for TCM treatment of NAFLD.
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Al-Eryani L, Wahlang B, Falkner KC, Guardiola JJ, Clair HB, Prough RA, Cave M. Identification of Environmental Chemicals Associated with the Development of Toxicant-associated Fatty Liver Disease in Rodents. Toxicol Pathol 2014; 43:482-97. [PMID: 25326588 DOI: 10.1177/0192623314549960] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Toxicant-associated fatty liver disease (TAFLD) is a recently identified form of nonalcoholic fatty liver disease (NAFLD) associated with exposure to industrial chemicals and environmental pollutants. Numerous studies have been conducted to test the association between industrial chemicals/environmental pollutants and fatty liver disease both in vivo and in vitro. OBJECTIVES The objective of the article is to report a list of chemicals associated with TAFLD. METHODS Two federal databases of rodent toxicology studies-Toxicological Reference Database (ToxRefDB; Environmental Protection Agency) and Chemical Effects in Biological Systems (CEBS, National Toxicology Program)-were searched for liver end points. Combined, these 2 databases archive nearly 2,000 rodent studies. Toxicant-associated steatohepatitis (TASH) descriptors including fatty change, fatty necrosis, Oil red O-positive staining, steatosis, and lipid deposition were queried. RESULTS Using these search terms, 123 chemicals associated with fatty liver were identified. Pesticides and solvents were the most frequently identified chemicals, while polychlorinated biphenyls (PCBs)/dioxins were the most potent. About 44% of identified compounds were pesticides or their intermediates, and >10% of pesticide registration studies in ToxRefDB were associated with fatty liver. Fungicides and herbicides were more frequently associated with fatty liver than insecticides. CONCLUSION More research on pesticides, solvents, metals, and PCBs/dioxins in NAFLD/TAFLD is warranted due to their association with liver damage.
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Affiliation(s)
- Laila Al-Eryani
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Banrida Wahlang
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - K C Falkner
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - J J Guardiola
- University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - H B Clair
- University of Louisville School of Medicine, Louisville, Kentucky, USA Department of Biochemistry & Molecular Biology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - R A Prough
- Department of Biochemistry & Molecular Biology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Matt Cave
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, Kentucky, USA University of Louisville School of Medicine, Louisville, Kentucky, USA Department of Biochemistry & Molecular Biology, University of Louisville School of Medicine, Louisville, Kentucky, USA Robley Rex Louisville VAMC, Louisville, Kentucky, USA
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Analysis of mouse liver metabolites by GC × GC-TOF MS. Methods Mol Biol 2014; 1198:99-105. [PMID: 25270925 DOI: 10.1007/978-1-4939-1258-2_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC × GC-TOF MS) is a powerful analytical platform for analysis of metabolites in mouse liver. Metabolites are extracted using a solvent mixture of methanol/water (4:1, v/v). The metabolite extracts are analyzed on GC × GC-TOF MS after derivatization. The experimental data are further processed for metabolite identification and quantification. A three-tier method is used for high-accuracy metabolite identification, while metabolite quantification is performed to recognize metabolites with significant abundance differences between sample groups.
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36
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David A, Abdul-Sada A, Lange A, Tyler CR, Hill EM. A new approach for plasma (xeno)metabolomics based on solid-phase extraction and nanoflow liquid chromatography-nanoelectrospray ionisation mass spectrometry. J Chromatogr A 2014; 1365:72-85. [PMID: 25260345 DOI: 10.1016/j.chroma.2014.09.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 08/29/2014] [Accepted: 09/01/2014] [Indexed: 11/30/2022]
Abstract
Current metabolite profiling methods based on liquid chromatography-mass spectrometry (LC-MS) platforms do not detect many of the components present at trace concentrations in extracts of plasma due to their low ionisation efficiency or to interference from highly abundant compounds. Nanoflow LC-nanospray MS platforms, which are commonly used in proteomics, could overcome these limitations and significantly increase analytical sensitivity and coverage of the plasma (xeno)metabolome (i.e., metabolites and xenobiotics), but require small injection volumes (<0.5μL). In this study, we developed sample preparation methods to remove ion suppressive phospholipids and concentrate remaining components of the plasma (xeno)metabolome in order to analyse sub-microliter volumes of plasma extracts for nanoflow ultra-high-performance liquid chromatography-nanoelectrospray ionisation-time-of-flight mass spectrometry (nUHPLC-nESI-TOFMS). These methods use phospholipid filtration plates in combination with polymeric or mixed mode exchange solid-phase extraction (SPE). The phospholipid filtration plates removed >94% of the predominant phospholipid/lysophospholipid species from plasma, whilst absolute recoveries of 63 selected (xeno)metabolites from spiked plasma were generally between 60 and 104%. After a further SPE step, recoveries of test compounds were between 50 and 81%. Studies revealed that both the sample preparation methodology and nUHPLC-nESI-TOFMS analyses gave acceptable repeatability. A qualitative comparison of SPE methods revealed that sample concentration by either polymer or mixed mode ion-exchange SPE gave comprehensive metabolite coverage of plasma extracts, but the use of cation exchange SPE significantly increased detection of many cationic compounds in the sample extracts. Method detection limits for steroid, eicosanoid and bile metabolites were <1.0ng/mL plasma and for pharmaceutical contaminants were between 0.01 and 30ng/mL plasma. Comparison of the phospholipid removal/cation exchange SPE and the classical protein precipitation (PPT) sample preparation methodologies revealed that both methods detected the same range of (xeno)metabolites. However, unlike PPT extracts, the SPE preparations allowed direct injection of more concentrated plasma extracts onto the nUHPLC-nESI-TOFMS platform without blockage of the nanocolumn or nanospray, thus resulting in a wider coverage of the (xeno)metabolome. This is the first work to demonstrate the significantly enhanced sensitivity arising from the use of concentrated SPE sample preparations and direct nUHPLC-nESI-TOFMS analysis for untargeted profiling of plasma samples and constitutes a step forward for identifying mixtures of chemical stressors accumulated in blood as well as the disruption of key metabolite pathways in the same sample.
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Affiliation(s)
- Arthur David
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - Alaa Abdul-Sada
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - Anke Lange
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Charles R Tyler
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Elizabeth M Hill
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK.
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Hashemi Kani A, Alavian SM, Haghighatdoost F, Azadbakht L. Diet macronutrients composition in nonalcoholic Fatty liver disease: a review on the related documents. HEPATITIS MONTHLY 2014; 14:e10939. [PMID: 24693306 PMCID: PMC3950571 DOI: 10.5812/hepatmon.10939] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 06/24/2013] [Accepted: 01/22/2014] [Indexed: 12/11/2022]
Abstract
CONTEXT Non-alcoholic fatty liver disease (NAFLD) is a growing health problem in both developed and developing countries. Metabolic abnormalities, specially insulin resistance and hyperglycemia are highly correlated with NAFLD. Lifestyle modifications including physical activity and promoting nutrient intakes are critical in prevention and treatment of NAFLD. Hence, in this article we aimed to review the evidence regarding the effects of various macronutrients on fat accumulation in hepatic cells as well as the level of liver enzymes. EVIDENCE ACQUISITIONS The relevant English and non-English published papers were searched using online databases of PubMed, ISI Web of Science, SCOPUS, Science Direct and EMBASE from January 2000 to January 2013. We summarized the findings of 40 relevant studies in this review. RESULTS Although a hypocaloric diet could prevent the progression of fat accumulation in liver, the diet composition is another aspect which should be considered in diet therapy of patients with NAFLD. CONCLUSIONS Several studies assessed the effects of dietary composition on fat storage in liver; however, their findings are inconsistent. Most studies focused on the quantity of carbohydrate and dietary fat; whilst there is very limited information regarding the role of protein intake.
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Affiliation(s)
- Ali Hashemi Kani
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, IR Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | | | - Fahimeh Haghighatdoost
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, IR Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Leila Azadbakht
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, IR Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, IR Iran
- Corresponding Author: Leila Azadbakht, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, IR Iran. Tel: +98-3117922719, Fax: +98-3116682509, E-mail:
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Wei X, Shi X, Kim S, Patrick JS, Binkley J, Kong M, McClain C, Zhang X. Data dependent peak model based spectrum deconvolution for analysis of high resolution LC-MS data. Anal Chem 2014; 86:2156-65. [PMID: 24533635 PMCID: PMC3982975 DOI: 10.1021/ac403803a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
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A data dependent peak model (DDPM)
based spectrum deconvolution
method was developed for analysis of high resolution LC-MS data. To
construct the selected ion chromatogram (XIC), a clustering method,
the density based spatial clustering of applications with noise (DBSCAN),
is applied to all m/z values of
an LC-MS data set to group the m/z values into each XIC. The DBSCAN constructs XICs without the need
for a user defined m/z variation
window. After the XIC construction, the peaks of molecular ions in
each XIC are detected using both the first and the second derivative
tests, followed by an optimized chromatographic peak model selection
method for peak deconvolution. A total of six chromatographic peak
models are considered, including Gaussian, log-normal, Poisson, gamma,
exponentially modified Gaussian, and hybrid of exponential and Gaussian
models. The abundant nonoverlapping peaks are chosen to find the optimal
peak models that are both data- and retention-time-dependent. Analysis
of 18 spiked-in LC-MS data demonstrates that the proposed DDPM spectrum
deconvolution method outperforms the traditional method. On average,
the DDPM approach not only detected 58 more chromatographic peaks
from each of the testing LC-MS data but also improved the retention
time and peak area 3% and 6%, respectively.
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Affiliation(s)
- Xiaoli Wei
- Department of Chemistry, ∥Department of Biostatistics and Bioinformatics, §Department of Medicine, #Department of Pharmocology and Toxicology, and ▽Alcohol Research Center, University of Louisville , Louisville, Kentucky 40292, United States
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Shi X, Wei X, Koo I, Schmidt RH, Yin X, Kim SH, Vaughn A, McClain CJ, Arteel GE, Zhang X, Watson WH. Metabolomic analysis of the effects of chronic arsenic exposure in a mouse model of diet-induced Fatty liver disease. J Proteome Res 2013; 13:547-554. [PMID: 24328084 DOI: 10.1021/pr400719u] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Arsenic is a widely distributed environmental component that is associated with a variety of cancer and non-cancer adverse health effects. Additional lifestyle factors, such as diet, contribute to the manifestation of disease. Recently, arsenic was found to increase inflammation and liver injury in a dietary model of fatty liver disease. The purpose of the present study was to investigate potential mechanisms of this diet-environment interaction via a high-throughput metabolomics approach. GC×GC-TOF MS was used to identify metabolites that were significantly increased or decreased in the livers of mice fed a Western diet (a diet high in fat and cholesterol) and co-exposed to arsenic-contaminated drinking water. The results showed that there are distinct hepatic metabolomic profiles associated with eating a high fat diet, drinking arsenic-contaminated water, and the combination of the two. Among the metabolites that were decreased when arsenic exposure was combined with a high fat diet were short-chain and medium-chain fatty acid metabolites and the anti-inflammatory amino acid, glycine. These results are consistent with the observed increase in inflammation and cell death in the livers of these mice and point to potentially novel mechanisms by which these metabolic pathways could be altered by arsenic in the context of diet-induced fatty liver disease.
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Affiliation(s)
- Xue Shi
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Xiaoli Wei
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Imhoi Koo
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Robin H Schmidt
- Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40292.,Department of Alcohol Research Center, University of Louisville, Louisville, KY 40292
| | - Xinmin Yin
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Seong Ho Kim
- Biostatistics Core, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201
| | - Andrew Vaughn
- Department of Medicine, University of Louisville, Louisville, KY 40292
| | - Craig J McClain
- Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40292.,Department of Alcohol Research Center, University of Louisville, Louisville, KY 40292.,Department of Medicine, University of Louisville, Louisville, KY 40292.,Department of Robley Rex VAMC, Louisville, KY 40292
| | - Gavin E Arteel
- Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40292.,Department of Alcohol Research Center, University of Louisville, Louisville, KY 40292
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Walter H Watson
- Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40292.,Department of Alcohol Research Center, University of Louisville, Louisville, KY 40292.,Department of Medicine, University of Louisville, Louisville, KY 40292
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40
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Bouhifd M, Hartung T, Hogberg HT, Kleensang A, Zhao L. Review: toxicometabolomics. J Appl Toxicol 2013; 33:1365-83. [PMID: 23722930 PMCID: PMC3808515 DOI: 10.1002/jat.2874] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 02/10/2013] [Accepted: 02/11/2013] [Indexed: 12/19/2022]
Abstract
Metabolomics use in toxicology is rapidly increasing, particularly owing to advances in mass spectroscopy, which is widely used in the life sciences for phenotyping disease states. Toxicology has the advantage of having the disease agent, the toxicant, available for experimental induction of metabolomics changes monitored over time and dose. This review summarizes the different technologies employed and gives examples of their use in various areas of toxicology. A prominent use of metabolomics is the identification of signatures of toxicity - patterns of metabolite changes predictive of a hazard manifestation. Increasingly, such signatures indicative of a certain hazard manifestation are identified, suggesting that certain modes of action result in specific derangements of the metabolism. This might enable the deduction of underlying pathways of toxicity, which, in their entirety, form the Human Toxome, a key concept for implementing the vision of Toxicity Testing for the 21st century. This review summarizes the current state of metabolomics technologies and principles, their uses in toxicology and gives a thorough overview on metabolomics bioinformatics, pathway identification and quality assurance. In addition, this review lays out the prospects for further metabolomics application also in a regulatory context.
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Affiliation(s)
| | - Thomas Hartung
- Correspondence to: T. Hartung, Johns Hopkins Bloomberg School of Public Health, Environmental Health Sciences, Chair for Evidence-based Toxicology, Center for Alternatives to Animal Testing, 615 N. Wolfe St., Baltimore, MD, 21205, USA.
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41
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Armitage EG, Rupérez FJ, Barbas C. Metabolomics of diet-related diseases using mass spectrometry. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Lin SL, Lin TY, Fuh MR. Microfluidic chip-based liquid chromatography coupled to mass spectrometry for determination of small molecules in bioanalytical applications: An update. Electrophoresis 2013; 35:1275-84. [DOI: 10.1002/elps.201300415] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Shu-Ling Lin
- Department of Chemistry; Soochow University; Taipei Taiwan
| | | | - Ming-Ren Fuh
- Department of Chemistry; Soochow University; Taipei Taiwan
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Arciello M, Gori M, Maggio R, Barbaro B, Tarocchi M, Galli A, Balsano C. Environmental pollution: a tangible risk for NAFLD pathogenesis. Int J Mol Sci 2013; 14:22052-66. [PMID: 24213605 PMCID: PMC3856051 DOI: 10.3390/ijms141122052] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 10/18/2013] [Accepted: 10/24/2013] [Indexed: 12/13/2022] Open
Abstract
The liver is crucial for human life, and the health of this organ often mirrors the health of the individual. The liver can be the target of several diseases, the most prevalent of which, as a consequence of development and changes in human lifestyles, is the nonalcoholic fatty liver disease (NAFLD). NAFLD is a multifactorial disease that embraces many histo-pathologic conditions and is highly linked to metabolic derangements. Technological progress and industrialization have also had the consequence of releasing pollutants in the environment, for instance pesticides or solvents, as well as by-products of discharge, such as the particulate matter. In the last decade, a growing body of evidence has emerged, shedding light on the potential impact of environmental pollutants on liver health and, in particular, on NAFLD occurrence. These contaminants have a great steatogenic potential and need to be considered as tangible NAFLD risk factors. There is an urgent need for a deeper comprehension of their molecular mechanisms of action, as well as for new lines of intervention to reduce their worldwide diffusion. This review wishes to sensitize the community to the effects of several environmental pollutants on liver health.
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Affiliation(s)
- Mario Arciello
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Manuele Gori
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Via Tronto 10, Ancona 60020, Italy
| | - Roberta Maggio
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Barbara Barbaro
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
| | - Mirko Tarocchi
- Gastroenterology Unit, Department of Experimental and Clinical Biochemical Sciences, University of Florence, Viale Pieraccini 6, Florence 50139, Italy; E-Mails: (M.T.); (A.G.)
| | - Andrea Galli
- Gastroenterology Unit, Department of Experimental and Clinical Biochemical Sciences, University of Florence, Viale Pieraccini 6, Florence 50139, Italy; E-Mails: (M.T.); (A.G.)
| | - Clara Balsano
- Francesco Balsano Foundation, via G.B. Martini 6, Rome 00198, Italy; E-Mails: (M.A.); (M.G.); (R.M.); (B.B.)
- Institute of Molecular Biology and Pathology (IBPM)-National Research Council (CNR), Piazzale Aldo Moro 7, Rome 00185, Italy
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-06-4993-3094; Fax: +39-06-4991-0908
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The metabolomic window into hepatobiliary disease. J Hepatol 2013; 59:842-58. [PMID: 23714158 PMCID: PMC4095886 DOI: 10.1016/j.jhep.2013.05.030] [Citation(s) in RCA: 165] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 05/14/2013] [Accepted: 05/21/2013] [Indexed: 12/11/2022]
Abstract
The emergent discipline of metabolomics has attracted considerable research effort in hepatology. Here we review the metabolomic data for non-alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH), cirrhosis, hepatocellular carcinoma (HCC), cholangiocarcinoma (CCA), alcoholic liver disease (ALD), hepatitis B and C, cholecystitis, cholestasis, liver transplantation, and acute hepatotoxicity in animal models. A metabolomic window has permitted a view into the changing biochemistry occurring in the transitional phases between a healthy liver and hepatocellular carcinoma or cholangiocarcinoma. Whether provoked by obesity and diabetes, alcohol use or oncogenic viruses, the liver develops a core metabolomic phenotype (CMP) that involves dysregulation of bile acid and phospholipid homeostasis. The CMP commences at the transition between the healthy liver (Phase 0) and NAFLD/NASH, ALD or viral hepatitis (Phase 1). This CMP is maintained in the presence or absence of cirrhosis (Phase 2) and whether or not either HCC or CCA (Phase 3) develops. Inflammatory signalling in the liver triggers the appearance of the CMP. Many other metabolomic markers distinguish between Phases 0, 1, 2 and 3. A metabolic remodelling in HCC has been described but metabolomic data from all four Phases demonstrate that the Warburg shift from mitochondrial respiration to cytosolic glycolysis foreshadows HCC and may occur as early as Phase 1. The metabolic remodelling also involves an upregulation of fatty acid β-oxidation, also beginning in Phase 1. The storage of triglycerides in fatty liver provides high energy-yielding substrates for Phases 2 and 3 of liver pathology. The metabolomic window into hepatobiliary disease sheds new light on the systems pathology of the liver.
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45
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Wahlang B, Falkner KC, Gregory B, Ansert D, Young D, Conklin DJ, Bhatnagar A, McClain CJ, Cave M. Polychlorinated biphenyl 153 is a diet-dependent obesogen that worsens nonalcoholic fatty liver disease in male C57BL6/J mice. J Nutr Biochem 2013; 24:1587-95. [PMID: 23618531 DOI: 10.1016/j.jnutbio.2013.01.009] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/20/2012] [Accepted: 01/31/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND Polychlorinated biphenyls (PCBs) are persistent environmental pollutants that are detectable in the serum of all American adults. Amongst PCB congeners, PCB 153 has the highest serum level. PCBs have been dose-dependently associated with obesity, metabolic syndrome and nonalcoholic fatty liver disease (NAFLD) in epidemiological studies. OBJECTIVE The purpose of this study is to determine mechanisms by which PCB 153 worsens diet-induced obesity and NAFLD in male mice fed a high-fat diet (HFD). METHODS Male C57BL6/J mice were fed either control or 42% milk fat diet for 12 weeks with or without PCB 153 coexposure (50 mg/kg ip ×4). Glucose tolerance test was performed, and plasma and tissues were obtained at necropsy for measurements of adipocytokine levels, histology and gene expression. RESULTS In control diet-fed mice, addition of PCB 153 had minimal effects on any of the measured parameters. However, PCB 153 treatment in high-fat-fed mice was associated with increased visceral adiposity, hepatic steatosis and plasma adipokines including adiponectin, leptin, resistin and plasminogen activator inhibitor-1 levels. Likewise, coexposure reduced expression of hepatic genes implicated in β-oxidation while increasing the expression of genes associated with lipid biosynthesis. Regardless of diet, PCB 153 had no effect on insulin resistance or tumor necrosis factor alpha levels. CONCLUSION PCB 153 is an obesogen that exacerbates hepatic steatosis, alters adipocytokines and disrupts normal hepatic lipid metabolism when administered with HFD but not control diet. Because all US adults have been exposed to PCB 153, this particular nutrient-toxicant interaction potentially impacts human obesity/NAFLD.
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Affiliation(s)
- Banrida Wahlang
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40202, USA
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46
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Wahlang B, Beier JI, Clair HB, Bellis-Jones HJ, Falkner KC, McClain CJ, Cave MC. Toxicant-associated steatohepatitis. Toxicol Pathol 2013; 41:343-60. [PMID: 23262638 PMCID: PMC5114851 DOI: 10.1177/0192623312468517] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hepatotoxicity is the most common organ injury due to occupational and environmental exposures to industrial chemicals. A wide range of liver pathologies ranging from necrosis to cancer have been observed following chemical exposures both in humans and in animal models. Toxicant-associated fatty liver disease (TAFLD) is a recently named form of liver injury pathologically similar to alcoholic liver disease (ALD) and nonalcoholic fatty liver disease (NAFLD). Toxicant-associated steatohepatitis (TASH) is a more severe form of TAFLD characterized by hepatic steatosis, inflammatory infiltrate, and in some cases, fibrosis. While subjects with TASH have exposures to industrial chemicals, such as vinyl chloride, they do not have traditional risk factors for fatty liver such as significant alcohol consumption or obesity. Conventional biomarkers of hepatotoxicity including serum alanine aminotransferase activity may be normal in TASH, making screening problematic. This article examines selected chemical exposures associated with TAFLD in human subjects or animal models and concisely reviews the closely related NAFLD and ALD.
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Affiliation(s)
- Banrida Wahlang
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Juliane I. Beier
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Heather B. Clair
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Heather J. Bellis-Jones
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - K. Cameron Falkner
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Craig J. McClain
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, Kentucky, USA
- Robley Rex Louisville VAMC, Louisville, Kentucky, USA
| | - Matt C. Cave
- Department of Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, University of Louisville School of Medicine, Louisville, Kentucky, USA
- Robley Rex Louisville VAMC, Louisville, Kentucky, USA
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47
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Wei X, Shi X, Kim S, Zhang L, Patrick JS, Binkley J, McClain C, Zhang X. Data preprocessing method for liquid chromatography-mass spectrometry based metabolomics. Anal Chem 2012; 84:7963-71. [PMID: 22931487 PMCID: PMC3471364 DOI: 10.1021/ac3016856] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A set of data preprocessing algorithms for peak detection and peak list alignment are reported for analysis of liquid chromatography-mass spectrometry (LC-MS)-based metabolomics data. For spectrum deconvolution, peak picking is achieved at the selected ion chromatogram (XIC) level. To estimate and remove the noise in XICs, each XIC is first segmented into several peak groups based on the continuity of scan number, and the noise level is estimated by all the XIC signals, except the regions potentially with presence of metabolite ion peaks. After removing noise, the peaks of molecular ions are detected using both the first and the second derivatives, followed by an efficient exponentially modified Gaussian-based peak deconvolution method for peak fitting. A two-stage alignment algorithm is also developed, where the retention times of all peaks are first transferred into the z-score domain and the peaks are aligned based on the measure of their mixture scores after retention time correction using a partial linear regression. Analysis of a set of spike-in LC-MS data from three groups of samples containing 16 metabolite standards mixed with metabolite extract from mouse livers demonstrates that the developed data preprocessing method performs better than two of the existing popular data analysis packages, MZmine2.6 and XCMS(2), for peak picking, peak list alignment, and quantification.
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Affiliation(s)
- Xiaoli Wei
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Xue Shi
- Department of Chemistry, University of Louisville, Louisville, KY 40292
| | - Seongho Kim
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY 40292
| | - Li Zhang
- LECO Corporation, St. Joseph, MI 49085
| | | | | | - Craig McClain
- Department of Medicine, University of Louisville, Louisville, KY 40292
- Department of Pharmacology & Toxicology, University of Louisville, Louisville, KY 40292
- Alcohol Research Center, University of Louisville, Louisville, KY 40292
- Robley Rex Louisville VAMC
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, KY 40292
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