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Moro J, Roisné-Hamelin G, Khodorova N, Rutledge DN, Martin JC, Barbillon P, Tomé D, Gaudichon C, Tardivel C, Jouan-Rimbaud Bouveresse D, Azzout-Marniche D. Pipecolate and Taurine are Rat Urinary Biomarkers for Lysine and Threonine Deficiencies. J Nutr 2023; 153:2571-2584. [PMID: 37394117 DOI: 10.1016/j.tjnut.2023.06.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/04/2023] Open
Abstract
BACKGROUND The consumption of poor-quality protein increases the risk of essential amino acid (EAA) deficiency, particularly for lysine and threonine. Thus, it is necessary to be able to detect easily EAA deficiency. OBJECTIVES The purpose of this study was to develop metabolomic approaches to identify specific biomarkers for an EAA deficiency, such as lysine and threonine. METHODS Three experiments were performed on growing rats. In experiment 1, rats were fed for 3 weeks with lysine (L30), or threonine (T53)-deficient gluten diets, or nondeficient gluten diet (LT100) in comparison with the control diet (milk protein, PLT). In experiments 2a and 2b, rats were fed at different concentrations of lysine (L) or threonine (T) deficiency: L/T15, L/T25, L/T40, L/T60, L/T75, P20, L/T100 and L/T170. Twenty-four-hour urine and blood samples from portal vein and vena cava were analyzed using LC-MS. Data from experiment 1 were analyzed by untargeted metabolomic and Independent Component - Discriminant Analysis (ICDA) and data from experiments 2a and 2b by targeted metabolomic and a quantitative Partial Least- Squares (PLS) regression model. Each metabolite identified as significant by PLS or ICDA was then tested by 1-way ANOVA to evaluate the diet effect. A two-phase linear regression analysis was used to determine lysine and threonine requirements. RESULTS ICDA and PLS found molecules that discriminated between the different diets. A common metabolite, the pipecolate, was identified in experiments 1 and 2a, confirming that it could be specific to lysine deficiency. Another metabolite, taurine, was found in experiments 1 and 2b, so probably specific to threonine deficiency. Pipecolate or taurine breakpoints obtained give a value closed to the values obtained by growth indicators. CONCLUSIONS Our results showed that the EAA deficiencies influenced the metabolome. Specific urinary biomarkers identified could be easily applied to detect EAA deficiency and to determine which AA is deficient.
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Affiliation(s)
- Joanna Moro
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Gaëtan Roisné-Hamelin
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Nadezda Khodorova
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Douglas N Rutledge
- AgroParisTech, Université Paris-Saclay, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR SayFood, Massy, France
| | - Jean-Charles Martin
- Aix Marseille Université, INSERM, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, Centre de recherche en cardiovasculaire et Nutrition, Marseille, France
| | - Pierre Barbillon
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Mathématiques et Informatique Appliquées Paris-Saclay, Palaiseau, France
| | - Daniel Tomé
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Claire Gaudichon
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Catherine Tardivel
- Aix Marseille Université, INSERM, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, Centre de recherche en cardiovasculaire et Nutrition, Marseille, France
| | - Delphine Jouan-Rimbaud Bouveresse
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France
| | - Dalila Azzout-Marniche
- Université Paris-Saclay, AgroParisTech, Institut National de recherche pour l'agriculture, l'alimentation et l'environnement, UMR Physiologie de la Nutrition et du Comportement Alimentaire, Palaiseau, France.
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2
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Inhibition of mTOR improves malnutrition induced hepatic metabolic dysfunction. Sci Rep 2022; 12:19948. [PMID: 36402829 PMCID: PMC9675758 DOI: 10.1038/s41598-022-24428-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/15/2022] [Indexed: 11/21/2022] Open
Abstract
Severe malnutrition accounts for half-a-million deaths annually in children under the age of five. Despite improved WHO guidelines, inpatient mortality remains high and is associated with metabolic dysfunction. Previous studies suggest a correlation between hepatic metabolic dysfunction and impaired autophagy. We aimed to determine the role of mTORC1 inhibition in a murine model of malnutrition-induced hepatic dysfunction. Wild type weanling C57/B6 mice were fed a 18 or 1% protein diet for two weeks. A third low-protein group received daily rapamycin injections, an mTORC1 inhibitor. Hepatic metabolic function was assessed by histology, immunofluorescence, gene expression, metabolomics and protein levels. Low protein-fed mice manifested characteristics of severe malnutrition, including weight loss, hypoalbuminemia, hypoglycemia, hepatic steatosis and cholestasis. Low protein-fed mice had fewer mitochondria and showed signs of impaired mitochondrial function. Rapamycin prevented hepatic steatosis, restored ATP levels and fasted plasma glucose levels compared to untreated mice. This correlated with increased content of LC3-II, and decreased content mitochondrial damage marker, PINK1. We demonstrate that hepatic steatosis and disturbed mitochondrial function in a murine model of severe malnutrition can be partially prevented through inhibition of mTORC1. These findings suggest that stimulation of autophagy could be a novel approach to improve metabolic function in severely malnourished children.
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Eylem CC, Nemutlu E, Dogan A, Acik V, Matyar S, Gezercan Y, Altintas S, Okten AI, Basci Akduman NE. High-Throughput Single-Step plasma sample extraction optimization strategies with experimental design for LC-MS and GC–MS integrated metabolomics and lipidomics analysis. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Xue B, Hong Q, Li X, Lu M, Zhou J, Yue S, Wang Z, Wang L, Peng Q, Xue B. Hepatic Injury Induced by Dietary Energy Level via Lipid Accumulation and Changed Metabolites in Growing Semi-Fine Wool Sheep. Front Vet Sci 2021; 8:745078. [PMID: 34631866 PMCID: PMC8494768 DOI: 10.3389/fvets.2021.745078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/17/2021] [Indexed: 01/22/2023] Open
Abstract
Liver injury threatens the overall health of an organism, as it is the core organ of the animal body. Liver metabolism is affected by numerous factors, with dietary energy level being a crucial one. Therefore, the present study aimed to evaluate hepatic injury and to describe its metabolic mechanism in ruminants fed diets with different dietary energy levels. A total of 25 Yunnan semi-fine wool sheep were fed diets with five dietary metabolic energy levels and were randomly assigned to five groups as follows: low energy (LE), medium–low energy (MLE), medium energy (ME), medium–high energy (MHE), and high energy (HE). The results revealed that the average optical density (AOD) of lipid droplets in the LE, MLE, and HE groups was higher than that in the ME and MHE groups. The enzyme activity of alanine aminotransferase (ALT) was the lowest in the ME group. An increase in dietary energy level promoted the superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity and altered the malondialdehyde (MDA) and protein carbonyl (PCO) concentration quadratically. In addition, both high and low dietary energy levels upregulated the mRNA abundance of proinflammatory cytokine interleukin (IL)-1β, nuclear factor-kappa B (NF-κB), and tumor necrosis factor (TNF)-α. Metabonomic analysis revealed that 142, 77, 65, and 108 differential metabolites were detected in the LE, MLE, MHE, and HE groups, compared with ME group respectively. These metabolites were involved in various biochemical pathways, such as glycolipid, bile acid, and lipid metabolism. In conclusion, both high and low dietary energy levels caused hepatic injury. Section staining and metabonomic results revealed that hepatic injury might be caused by altered metabolism and lipid accumulation induced by lipid mobilization.
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Affiliation(s)
- Benchu Xue
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Qionghua Hong
- Yunna Academy of Animal Science and Vetarinary Medicine, Kunming, China
| | - Xiang Li
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Mingli Lu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Jia Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Shuangming Yue
- Department of Bioengineering, Sichuan Water Conservancy College, Chengdu, China
| | - Zhisheng Wang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Lizhi Wang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Quanhui Peng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - Bai Xue
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
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Moro J, Khodorova N, Tomé D, Gaudichon C, Tardivel C, Berton T, Martin JC, Azzout-Marniche D, Jouan-Rimbaud Bouveresse D. Plasma and Urinary Amino Acid-Derived Catabolites as Potential Biomarkers of Protein and Amino Acid Deficiency in Rats. Nutrients 2021; 13:1567. [PMID: 34066958 PMCID: PMC8148556 DOI: 10.3390/nu13051567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Dietary intakes must cover protein and essential amino acid (EAA) requirements. For this purpose, different methods have been developed such as the nitrogen balance method, factorial method, or AA tracer studies. However, these methods are either invasive or imprecise, and the Food and Agriculture Organization of the United Nations (FAO, 2013) recommends new methods and, in particular, metabolomics. The aim of this study is to determine total protein/EAA requirement in the plasma and urine of growing rats. METHODS 36 weanling rats were fed with diets containing 3, 5, 8, 12, 15, and 20% protein for 3 weeks. During experimentation, urine was collected using metabolic cages, and blood from the portal vein and vena was taken at the end of the experiment. Metabolomics analyses were performed using LC-MS, and the data were analyzed with a multivariate analysis model, partial least Squares (PLS) regression, and independent component-discriminant analysis (ICDA). Each discriminant metabolite identified by PLS or ICDA was tested by one-way ANOVA to evaluate the effect of diet. RESULTS PLS and ICDA allowed us to identify discriminating metabolites between different diet groups. Protein deficiency led to an increase in the AA catabolism enzyme systems inducing the production of breakdown metabolites in the plasma and urine. CONCLUSION These results indicate that metabolites are specific for the state of EAA deficiency and sufficiency. Some types of biomarkers such as AA degradation metabolites appear to be specific candidates for protein/EAA requirement.
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Affiliation(s)
- Joanna Moro
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay, 75005 Paris, France; (J.M.); (N.K.); (D.T.); (C.G.); (D.J.-R.B.)
| | - Nadezda Khodorova
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay, 75005 Paris, France; (J.M.); (N.K.); (D.T.); (C.G.); (D.J.-R.B.)
| | - Daniel Tomé
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay, 75005 Paris, France; (J.M.); (N.K.); (D.T.); (C.G.); (D.J.-R.B.)
| | - Claire Gaudichon
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay, 75005 Paris, France; (J.M.); (N.K.); (D.T.); (C.G.); (D.J.-R.B.)
| | - Catherine Tardivel
- UMR C2VN, Aix-Marseille Université, INSERM, INRAE, 13385 Marseille, France; (C.T.); (T.B.); (J.-C.M.)
| | - Thierry Berton
- UMR C2VN, Aix-Marseille Université, INSERM, INRAE, 13385 Marseille, France; (C.T.); (T.B.); (J.-C.M.)
| | - Jean-Charles Martin
- UMR C2VN, Aix-Marseille Université, INSERM, INRAE, 13385 Marseille, France; (C.T.); (T.B.); (J.-C.M.)
| | - Dalila Azzout-Marniche
- UMR PNCA, AgroParisTech, INRA, Université Paris-Saclay, 75005 Paris, France; (J.M.); (N.K.); (D.T.); (C.G.); (D.J.-R.B.)
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Zeki ÖC, Eylem CC, Reçber T, Kır S, Nemutlu E. Integration of GC–MS and LC–MS for untargeted metabolomics profiling. J Pharm Biomed Anal 2020; 190:113509. [DOI: 10.1016/j.jpba.2020.113509] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 12/12/2022]
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7
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Wang Q, Yue J, Zhou X, Zheng M, Cao B, Li J. Ouabain regulates kidney metabolic profiling in rat offspring of intrauterine growth restriction induced by low-protein diet. Life Sci 2020; 259:118281. [PMID: 32798554 DOI: 10.1016/j.lfs.2020.118281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 11/18/2022]
Abstract
AIMS Intrauterine growth restriction (IUGR) can increase the risk of hypertension and kidney disease at adulthood due to fetal programming. In our previous study, we found that supplementation with low concentration of ouabain during pregnancy could restore glomerulus numbers at birth, rescuing kidney development. However, the metabolic pattern of kidney in IUGR offspring and the effect of ouabain have not been evaluated. MAIN METHODS In this study, based on GC-MS and LC-MS platforms, we used the protein restriction rat model to explore the molecular mechanisms of kidney damage induced by IUGR and the protective effect of ouabain. KEY FINDINGS The results showed that malnutrition could induce IUGR in rat offspring at the 20th gestational day but ouabain treatment could partially reverse the body and kidney weight loss. Ouabain treatment could upregulate arginine, N-acetylornithine and carbamoyl phosphate as well as adenine nucleotide and guanine nucleotide downregulated by low-protein diet. Moreover, six metabolites were identified to be significantly correlated with fetal kidney weight, with 3 metabolites involved in arginine metabolism (arginine, N-acetylornithine, urea) and UDP-glucuronate correlated positively, while lysine and anthranilate correlated negatively. SIGNIFICANCE The results suggested that the underlying mechanism of ouabain against renal maldevelopment involved the metabolic regulation, particularly the arginine metabolism, which played an important role in the development of fetal kidney.
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Affiliation(s)
- Qien Wang
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Jing Yue
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xuan Zhou
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Meihong Zheng
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Bei Cao
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Juan Li
- Phase I Clinical Trials Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
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8
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Wu H, Xu C, Gu Y, Yang S, Wang Y, Wang C. An improved pseudotargeted GC-MS/MS-based metabolomics method and its application in radiation-induced hepatic injury in a rat model. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1152:122250. [PMID: 32619786 DOI: 10.1016/j.jchromb.2020.122250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 06/09/2020] [Accepted: 06/14/2020] [Indexed: 12/12/2022]
Abstract
The liver is the pivotal metabolic organ primarily responsible for metabolic activities, detoxification and regulation of carbohydrate, protein, amino acid, and lipid metabolism. However, very little is known about the complicated pathophysiologic mechanisms of liver injury result from ionizing radiation exposure. Therefore, a pseudotargeted metabolomics approach based on gas chromatography-tandem mass spectrometry with selected reaction monitoring (GC-MS-SRM) was developed to study metabolic alterations of liver tissues in radiation-induced hepatic injury. The pseudotargeted GC-MS-SRM method was validated with satisfactory analytical characteristics in terms of precision, linearity, sensitivity and recovery. Compared to the SIM-based approach, the SRM scanning method had mildly better precision, higher sensitivity, and wider linear ranges. A total of 37 differential metabolites associated with radiation-induced hepatic injury were identified using the GC-MS-SRM metabolomics method. Global metabolic clustering analysis showed that amino acids, carbohydrates, unsaturated fatty acids, organic acids, metabolites associated with pyrimidine metabolism, ubiquinone biosynthesis and oxidative phosphorylation appeared significantly declined after high dose irradiation exposure, whereas metabolites related to lysine catabolism, glycerolipid metabolism and glutathione metabolism presented the opposite behavior. These changes indicate energy deficiency, antioxidant defense damage, accumulation of ammonia and lipid oxidation of liver tissues in response to radiation exposure. It is shown that the developed pseudotargeted method based on GC-MS-SRM is a useful tool for metabolomics study.
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Affiliation(s)
- Hanxu Wu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, School for Radiological and Interdisciplinary Sciences (RAD-X), Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Suzhou Industrial Park Ren'ai Road 199, Suzhou 215123, PR China
| | - Chao Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, School for Radiological and Interdisciplinary Sciences (RAD-X), Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Suzhou Industrial Park Ren'ai Road 199, Suzhou 215123, PR China
| | - Yifeng Gu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, School for Radiological and Interdisciplinary Sciences (RAD-X), Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Suzhou Industrial Park Ren'ai Road 199, Suzhou 215123, PR China
| | - Shugao Yang
- Department of Biochemistry and Molecular Biology, Soochow University College of Medicine, Suzhou 215123, China
| | - Yarong Wang
- Experimental Center of Medical College, Soochow University, Suzhou Industrial Park Ren'ai Road 199, Suzhou 215123, PR China
| | - Chang Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, School for Radiological and Interdisciplinary Sciences (RAD-X), Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Suzhou Industrial Park Ren'ai Road 199, Suzhou 215123, PR China.
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Yao X, Xu C, Cao Y, Lin L, Wu H, Wang C. Early metabolic characterization of brain tissues after whole body radiation based on gas chromatography–mass spectrometry in a rat model. Biomed Chromatogr 2018; 33:e4448. [DOI: 10.1002/bmc.4448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 11/12/2018] [Accepted: 11/24/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Xueting Yao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
| | - Chao Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
| | - Yurong Cao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
| | - Lin Lin
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
| | - Hanxu Wu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
| | - Chang Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD‐X)Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection Suzhou P. R. China
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10
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Metabolic phenotyping of malnutrition during the first 1000 days of life. Eur J Nutr 2018; 58:909-930. [PMID: 29644395 PMCID: PMC6499750 DOI: 10.1007/s00394-018-1679-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 03/26/2018] [Indexed: 02/07/2023]
Abstract
Nutritional restrictions during the first 1000 days of life can impair or delay the physical and cognitive development of the individual and have long-term consequences for their health. Metabolic phenotyping (metabolomics/metabonomics) simultaneously measures a diverse range of low molecular weight metabolites in a sample providing a comprehensive assessment of the individual's biochemical status. There are a growing number of studies applying such approaches to characterize the metabolic derangements induced by various forms of early-life malnutrition. This includes acute and chronic undernutrition and specific micronutrient deficiencies. Collectively, these studies highlight the diverse and dynamic metabolic disruptions resulting from various forms of nutritional deficiencies. Perturbations were observed in many pathways including those involved in energy, amino acid, and bile acid metabolism, the metabolic interactions between the gut microbiota and the host, and changes in metabolites associated with gut health. The information gleaned from such studies provides novel insights into the mechanisms linking malnutrition with developmental impairments and assists in the elucidation of candidate biomarkers to identify individuals at risk of developmental shortfalls. As the metabolic profile represents a snapshot of the biochemical status of an individual at a given time, there is great potential to use this information to tailor interventional strategies specifically to the metabolic needs of the individual.
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Velly H, Britton RA, Preidis GA. Mechanisms of cross-talk between the diet, the intestinal microbiome, and the undernourished host. Gut Microbes 2017; 8:98-112. [PMID: 27918230 PMCID: PMC5390823 DOI: 10.1080/19490976.2016.1267888] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 11/17/2016] [Accepted: 11/28/2016] [Indexed: 02/06/2023] Open
Abstract
Undernutrition remains one of the most pressing global health challenges today, contributing to nearly half of all deaths in children under five years of age. Although insufficient dietary intake and environmental enteric dysfunction are often inciting factors, evidence now suggests that unhealthy gut microbial populations perpetuate the vicious cycle of pathophysiology that results in persistent growth impairment in children. The metagenomics era has facilitated new research identifying an altered microbiome in undernourished hosts and has provided insight into a number of mechanisms by which these alterations may affect growth. This article summarizes a range of observational studies that highlight differences in the composition and function of gut microbiota between undernourished and healthy children; discusses dietary, environmental and host factors that shape this altered microbiome; examines the consequences of these changes on host physiology; and considers opportunities for microbiome-targeting therapies to combat the global challenge of child undernutrition.
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Affiliation(s)
- Helene Velly
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Robert A. Britton
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Geoffrey A. Preidis
- Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, TX, USA
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Jiang P, Stanstrup J, Thymann T, Sangild PT, Dragsted LO. Progressive Changes in the Plasma Metabolome during Malnutrition in Juvenile Pigs. J Proteome Res 2015; 15:447-56. [PMID: 26626656 DOI: 10.1021/acs.jproteome.5b00782] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Severe acute malnutrition (SAM) is one of the leading nutrition-related causes of death in children under five years of age. The clinical features of SAM are well documented, but a comprehensive understanding of the development from a normal physiological state to SAM is lacking. Characterizing the temporal metabolomic change may help to understand the disease progression and to define nutritional rehabilitation strategies. Using a piglet model we hypothesized that a progressing degree of malnutrition induces marked plasma metabolite changes. Four-week-old weaned pigs were fed a nutrient-deficient maize diet (MAL) or nutritionally optimized reference diet (REF) for 7 weeks. Plasma collected weekly was subjected to LC-MS for a nontargeted profiling of metabolites with abundance differentiation. The MAL pigs showed markedly reduced body-weight gain and lean-mass proportion relative to the REF pigs. Levels of eight essential and four nonessential amino acids showed a time-dependent deviation in the MAL pigs from that in the REF. Choline metabolites and gut microbiomic metabolites generally showed higher abundance in the MAL pigs. The results demonstrated that young malnourished pigs had a profoundly perturbed metabolism, and this provides basic knowledge about metabolic changes during malnourishment, which may be of help in designing targeted therapeutic foods for refeeding malnourished children.
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Affiliation(s)
- Pingping Jiang
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen , 68 Dyrlægevej, DK-1870 Frederiksberg C, Denmark
| | - Jan Stanstrup
- Department of Nutrition, Exercise and Sports, University of Copenhagen , 30 Rolighedsvej, DK-1958 Frederiksberg C, Denmark
| | - Thomas Thymann
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen , 68 Dyrlægevej, DK-1870 Frederiksberg C, Denmark
| | - Per Torp Sangild
- Department of Veterinary Clinical and Animal Sciences, University of Copenhagen , 68 Dyrlægevej, DK-1870 Frederiksberg C, Denmark
| | - Lars Ove Dragsted
- Department of Nutrition, Exercise and Sports, University of Copenhagen , 30 Rolighedsvej, DK-1958 Frederiksberg C, Denmark
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Caboni P, Meloni A, Lussu M, Carta E, Barberini L, Noto A, Deiana SF, Mereu R, Ragusa A, Paoletti AM, Melis GB, Fanos V, Atzori L. Urinary metabolomics of pregnant women at term: a combined GC/MS and NMR approach. J Matern Fetal Neonatal Med 2015; 27 Suppl 2:4-12. [PMID: 25284171 DOI: 10.3109/14767058.2014.956403] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Physiological changes leading to parturition are not completely understood while clinical diagnosis of labour is still retrospective. Gas chromatography mass spectrometry (GC/MS) and nuclear magnetic resonance spectroscopy (NMR) represent two of the main analytical platforms used in clinical metabolomics. Metabolomics might help us to improve our knowledge about the biochemical mechanisms underlying labour. METHODS Urine samples (n = 59), collected from pregnant women at term of gestation before and/or after the onset of labour, were analysed by GC/MS and NMR techniques in order to identify the metabolic profile. Both GC/MS and NMR data matrices containing the identified metabolites were analysed by multivariate statistical techniques in order to characterise the discriminant variables between labour (L) and not labour (NL) status. RESULTS 18 potential metabolites (11 with (1)H-NMR, eight with GC-MS: glycine was relevant in both) were found discriminant in urine of women during labour. Taken together, the identified metabolites produced a composite biomarker pattern, a sort of barcode, capable of differentiating between labour and not labour conditions. Major discriminant metabolites for NMR and GC/MS analysis were: alanine, glycine, acetone, 3-hydroxybutiyric acid, 2,3,4-trihydroxybutyric acid and succinic acid, giving a urine metabolite signature on the late phase of labour. CONCLUSIONS The metabolomics analysis evidenced clusters of metabolites involved in labour condition able to discriminate between urine samples collected before the onset and during labour, potentially offering the promise of a robust screening test.
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Affiliation(s)
- Pierluigi Caboni
- Department of Life and Environmental Sciences, University of Cagliari , Cagliari , Italy
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14
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Preidis GA, Hotez PJ. The newest "omics"--metagenomics and metabolomics--enter the battle against the neglected tropical diseases. PLoS Negl Trop Dis 2015; 9:e0003382. [PMID: 25675250 PMCID: PMC4326130 DOI: 10.1371/journal.pntd.0003382] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Geoffrey A. Preidis
- Section of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, Texas, United States of America
- * E-mail:
| | - Peter J. Hotez
- National School of Tropical Medicine, Department of Pediatrics and Molecular Virology & Microbiology, Baylor College of Medicine, Houston, Texas, United States of America
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, Houston, Texas, United States of America
- James A. Baker III Institute for Public Policy, Rice University, Houston, Texas, United States of America
- Department of Biology, Baylor University, Waco, Texas, United States of America
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15
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MS-based metabolomics facilitates the discovery of in vivo functional small molecules with a diversity of biological contexts. Future Med Chem 2014; 5:1953-65. [PMID: 24175746 DOI: 10.4155/fmc.13.148] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In vivo small molecules as necessary intermediates are involved in numerous critical metabolic pathways and biological processes associated with many essential biological functions and events. There is growing evidence that MS-based metabolomics is emerging as a powerful tool to facilitate the discovery of functional small molecules that can better our understanding of development, infection, nutrition, disease, toxicity, drug therapeutics, gene modifications and host-pathogen interaction from metabolic perspectives. However, further progress must still be made in MS-based metabolomics because of the shortcomings in the current technologies and knowledge. This technique-driven review aims to explore the discovery of in vivo functional small molecules facilitated by MS-based metabolomics and to highlight the analytic capabilities and promising applications of this discovery strategy. Moreover, the biological significance of the discovery of in vivo functional small molecules with different biological contexts is also interrogated at a metabolic perspective.
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16
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Wen T, Gao L, Wen Z, Wu C, Tan CS, Toh WZ, Ong CN. Exploratory investigation of plasma metabolomics in human lung adenocarcinoma. MOLECULAR BIOSYSTEMS 2014; 9:2370-8. [PMID: 23857124 DOI: 10.1039/c3mb70138g] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Globally lung cancer is common among males and recently also noted with increasing incidences in females, especially adenocarcinoma. Further, most lung cancers are not easily detected until the late stage. Metabolic profiling of plasma low molecular weight metabolites may help unveil the complex pathophysiological changes during early lung adenocarcinoma development. Here we used a combination of gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS) methods to investigate the metabolic signatures in the plasma of 31 stage I human lung adenocarcinoma patients and 28 healthy controls. The metabolic profiles were assayed using orthogonal projections to latent structures discriminant analysis (OPLS-DA), and were further analyzed to identify the associated marker metabolites. The OPLS-DA models derived from both GC-MS and LC-MS showed significant discriminations in metabolic profiles between cases and healthy controls. It was found that around 37 metabolites contributed to the differences. The alterations of these metabolites implied disturbances in amino acids, lipids, fatty acids and glutaminolysis metabolism in human lung adenocarcinoma, even after removal of influencing factors such as age, gender and smoking habits. Of particular interest, the sex hormone metabolic pathway involving the sulfate conjugate of testosterone, androsterone and pregnenolone was found to be disturbed considerably. All these metabolic perturbations occur at an early stage of lung adenocarcinoma and thus could act as biomarkers for its early diagnosis. These exploratory findings suggest that integration of two sensitive and complementary metabolomic approaches enables a comprehensive metabolite profiling for human lung adenocarcinoma, although a more extensive study is needed to confirm the findings.
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Affiliation(s)
- Tao Wen
- Saw Swee Hock School of Public Health, National University of Singapore, 16 Medical Drive, Singapore 117597, Singapore
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17
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Nutritional modulation of the metabonome: applications of metabolic phenotyping in translational nutritional research. Curr Opin Gastroenterol 2014; 30:196-207. [PMID: 24468802 DOI: 10.1097/mog.0000000000000036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Metabolic profiling technologies provide a global overview of complex dietary processes. Metabonomic analytical approaches have now been translated into multiple areas of clinical nutritional research based on the widespread adoption of high-throughput mass spectrometry and proton nuclear magnetic resonance spectroscopy. This has generated novel insights into the molecular mechanisms that shape the microbiome-dietary-chronic disease axis. RECENT FINDINGS Metabolome-wide association studies have created a new paradigm in nutritional molecular epidemiology and they have highlighted the importance of gut microbial cometabolic processes in the development of cardiovascular disease and diabetes. Targeted analyses are helping to explain the mechanisms by which high-risk diets (such as red meat) modulate disease risk and they are generating novel biomarkers that will serve to re-define how the efficacy of nutritional interventions is assessed. Nutritional metabonome-microbiome interactions have also been defined in extreme dietary states such as obesity and starvation, and they also serve as important models for understanding how the gut microbiome modifies disease risk. Finally, nutritional systems medicine approaches are creating novel insights into the functional components of our diet, and the mechanisms by which they cause disease. SUMMARY Diet is an important modulator of the human metabolic phenotype and the analysis of the nutritional metabolome will drive future development of personalized nutritional interventions.
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18
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Metabolic profiling of plasma from benign and malignant pulmonary nodules patients using mass spectrometry-based metabolomics. Metabolites 2013; 3:539-51. [PMID: 24958138 PMCID: PMC3901282 DOI: 10.3390/metabo3030539] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 06/07/2013] [Accepted: 06/24/2013] [Indexed: 12/16/2022] Open
Abstract
Solitary pulmonary nodule (SPN or coin lesion) is a mass in the lung and can be commonly found in chest X-rays or computerized tomography (CT) scans. However, despite the advancement of imaging technologies, it is still difficult to distinguish malignant cancer from benign SPNs. Here we investigated the metabolic profiling of patients with benign and malignant pulmonary nodules. A combination of gas chromatography/mass spectrometry (GC/MS) and liquid chromatography/mass spectrometry (LC/MS) was used to profile the plasma metabolites in 17 patients with malignant SPNs, 15 patients with benign SPNs and 20 healthy controls. The metabolic profiles were assayed using OPLS-DA, and further analyzed to identify marker metabolites related to diseases. Both GC/MS- and LC/MS-derived models showed clear discriminations in metabolic profiles among three groups. It was found that 63 metabolites (12 from GC/MS, 51 from LC/MS) contributed to the differences. Of these, 48 metabolites showed same change trend in both malignant and benign SPNs as compared with healthy controls, indicating some common pathways including inflammation and oxidative injury shared by two diseases. In contrast, 14 metabolites constituted distinct profiles that differentiated malignant from benign SPNs, which might be a unique biochemical feature associated with lung cancer. Overall, our data suggested that integration of two highly sensitive and complementary metabolomics platforms could enable a comprehensive metabolic profiling and assist in discrimination malignant from benign SPNs.
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Metabonomics study of essential hypertension and its chinese medicine subtypes by using gas chromatography-mass spectrometry and nuclear magnetic resonance spectroscopy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:625906. [PMID: 23533506 PMCID: PMC3596894 DOI: 10.1155/2013/625906] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 11/25/2012] [Accepted: 12/30/2012] [Indexed: 11/25/2022]
Abstract
A metabonomic study was performed to investigate the metabolic mechanism of essential hypertension and its Chinese medicine subtypes, including “Yin-deficiency and Yang-hyperactivity syndrome” (YDYHS) and “Yin-Yang deficiency syndrome” (YYDS). Plasma samples from 22 healthy volunteers, 31 hypertensive patients with YDYHS, and 29 hypertensive patients with YYDS were analyzed by 1H-NMR spectroscopy and gas chromatography coupled with mass spectrometry (GC-MS). The three groups were distinctly classified by principal components analysis (PCA) and partial least squares discriminant analysis (PLS-DA). According to identified biomarkers and their related pathways, abnormal glucose metabolism might be the main common pathway from YDYHS to YYDS, and sympathetic nervous system activation would play an important role in the pathogenesis of YDYHS, while a low metabolic rate usually occurred in YYDS.
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Liao W, Tan G, Zhu Z, Chen Q, Lou Z, Dong X, Zhang W, Pan W, Chai Y. Combined Metabonomic and Quantitative Real-Time PCR Analyses Reveal Systems Metabolic Changes in Jurkat T-Cells Treated with HIV-1 Tat Protein. J Proteome Res 2012; 11:5109-23. [DOI: 10.1021/pr300173c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wenting Liao
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
- College of High Altitude
Military Medicine, Third Military Medical University, Chongqing 400038, China
| | - Guangguo Tan
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Zhenyu Zhu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Qiuli Chen
- Department of Microbiology, Second Military Medical University, Shanghai 200433,
China
| | - Ziyang Lou
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Xin Dong
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Wei Zhang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Wei Pan
- Department of Microbiology, Second Military Medical University, Shanghai 200433,
China
| | - Yifeng Chai
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
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Gu Y, Lu C, Zha Q, Kong H, Lu X, Lu A, Xu G. Plasma metabonomics study of rheumatoid arthritis and its Chinese medicine subtypes by using liquid chromatography and gas chromatography coupled with mass spectrometry. MOLECULAR BIOSYSTEMS 2012; 8:1535-43. [PMID: 22419152 DOI: 10.1039/c2mb25022e] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Rheumatoid arthritis (RA) is the most severe type of chronic inflammatory disease and has always been a research hotspot in different fields. In this study, a non-targeted metabonomics approach was carried out to profile metabolic characteristics of RA and its Chinese medicine subtypes by using liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS). Plasma samples of 57 RA patients and 23 healthy controls were collected. On the basis of the traditional Chinese medicine (TCM), RA patients were classified into two main patterns, the cold pattern and the heat pattern. By using univariate and multivariate data analysis, we found that the RA patients presented diverse dysfunctions in inositol phosphate metabolism, lipid metabolism, amino acid metabolism, glucose metabolism, ascorbate metabolism, glyoxylate and dicarboxylate metabolism. The metabolic phenotypes were different between the RA cold pattern and the RA heat pattern. Compared with the RA cold pattern, the RA heat pattern showed elevated plasma concentrations of glycochenodeoxycholate, proline, saturated and mono-unsaturated phosphatidylcholine (PC) but decreased levels of urea, free fatty acid (FFA) and polyunsaturated PC. Our data show that metabonomics is a valuable tool in disease and TCM subtype research.
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Affiliation(s)
- Yan Gu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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Chang Y, Zhao C, Zhu Z, Wu Z, Zhou J, Zhao Y, Lu X, Xu G. Metabolic profiling based on LC/MS to evaluate unintended effects of transgenic rice with cry1Ac and sck genes. PLANT MOLECULAR BIOLOGY 2012; 78:477-87. [PMID: 22271304 DOI: 10.1007/s11103-012-9876-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 01/04/2012] [Indexed: 05/11/2023]
Abstract
As a primary characteristic of substantial equivalence, the evaluation of unintended effects of genetically modified plants has been evolving into an important field of research. In this study, a metabolic profiling method for rice seeds was developed using rapid resolution liquid chromatography/quadrupole time-of-flight mass spectrometry. The analytical properties of the method, including the linearity, reproducibility, intra-day precision and inter-day precision, were investigated and were found to be satisfactory. The method was then applied to investigate the differences between transgenic rice and its native counterparts, in addition to the differences found between native rice with different sowing dates or locations. Global metabolic phenotype differences were visualized, and metabolites from different discriminated groups were discovered using multivariate data analysis. The results indicated that environmental factors played a greater role than gene modification for most metabolites, including tryptophan, 9,10,13-trihydroxyoctadec-11-enoic acid, and lysophosphatidylethanolamine 16:0. The concentrations of phytosphingosine, palmitic acid, 5-hydroxy-2-octadenoic acid and three other unidentified metabolites varied slightly due to gene modification.
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Affiliation(s)
- Yuwei Chang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, China
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Ni Y, Mei M, Kokot S. One- and two-dimensional gas chromatography–mass spectrometry and high performance liquid chromatography–diode-array detector fingerprints of complex substances: A comparison of classification performance of similar, complex Rhizoma Curcumae samples with the aid of chemometrics. Anal Chim Acta 2012; 712:37-44. [DOI: 10.1016/j.aca.2011.11.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 10/31/2011] [Accepted: 11/02/2011] [Indexed: 10/15/2022]
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Zhang A, Sun H, Wang P, Han Y, Wang X. Modern analytical techniques in metabolomics analysis. Analyst 2012; 137:293-300. [DOI: 10.1039/c1an15605e] [Citation(s) in RCA: 538] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Therapeutic effect of Yunnan Baiyao on rheumatoid arthritis was partially due to regulating arachidonic acid metabolism in osteoblasts. J Pharm Biomed Anal 2011; 59:130-7. [PMID: 22075375 DOI: 10.1016/j.jpba.2011.10.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 10/17/2011] [Accepted: 10/17/2011] [Indexed: 11/23/2022]
Abstract
In order to explore the potential therapeutic effect of Yunnan Baiyao (YNB) on rheumatoid arthritis (RA), rat models were constructed and orally administrated with YNB or methotrexate (MTX) in parallel. Clinical physical, histological and biochemical parameters showed trivial therapeutic difference between YNB and MTX applications. Urine and serum metabonomics results indicated that many endogenous metabolites differentially changed among the rats receiving diverse therapeutic interventions. Among them, the fluctuation of arachidonic acid (AA) was thought to make sense. Thus, its relevant metabolites were subjected to quantitation by using osteoblasts treated by YNB in vitro. It was found that YNB extract of 20 μg/mL could greatly activate the synthesis of intracellular prostaglandin E₂ and thromboxane B₂ in osteoblasts. Excretion of prostaglandin D₂ could be suppressed but not the thromboxane B₂. This study proved the efficacy of YNB on curing RA and its potential mechanism through modulating AA metabolism in osteoblasts to some extent.
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