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Leninsky MA, Sobolev VE, Sokolova MO, Voitenko NG, Skvortsov NV. Quantification of 11 metabolites in rat urine after exposure to organophosphates. Lab Anim Res 2024; 40:23. [PMID: 38845041 PMCID: PMC11155157 DOI: 10.1186/s42826-024-00209-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND The aim of the study was to develop a technique for quantitative determination of rat urine metabolites by HPLC-MS/MS, which can be used to search for biomarkers of acute intoxication with organophosphates (OPs). RESULTS The content of metabolites in the urine of rats exposed to a single dose of paraoxon (POX1x); interval, twice daily administration of paraoxon (POX2x); exposure to 2-(o-cresyl)-4H-1, 3, 2-benzodioxaphosphorin-2-oxide and paraoxon (CBPOX) was investigated. New data were obtained on the content in the urine of intact rats as well as rats in 3 models of OP poisoning: 3-methylhistidine, threonine, creatine, creatinine, lactic acid, acetylcarnitine, inosine, hypoxanthine, adenine, 3-hydroxymethyl-butyrate and 2-hydroxymethyl-butyrate. CONCLUSIONS The proposed assay procedure is a simple and reliable tool for urine metabolomic studies. Within 1-3 days after OP exposure in all three models of acute intoxication, the concentration of metabolites in rat urine, with the exception of adenine, changes similarly and symmetrically, regardless of the method of poisoning modeling, in all three models of acute intoxication. Further studies are needed to determine the specificity and reliability of using urinary metabolite concentration changes as potential biomarkers of acute organophosphate intoxication.
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Affiliation(s)
- Michael A Leninsky
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Thorez 44, St. Petersburg, 194223, Russia
| | - Vladislav E Sobolev
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Thorez 44, St. Petersburg, 194223, Russia.
| | - Margarita O Sokolova
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Thorez 44, St. Petersburg, 194223, Russia
| | - Natalya G Voitenko
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Thorez 44, St. Petersburg, 194223, Russia
| | - Nikita V Skvortsov
- Federal State Budgetary Scientific Institution "Institute of Experimental Medicine", 12, Acad. Pavlov Street, St. Petersburg, 197022, Russia
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Morningstar J, Lee J, Mahon S, Brenner M, Nath AK. Mass Spectrometric Analysis of Purine Intermediary Metabolism Indicates Cyanide Induces Purine Catabolism in Rabbits. Metabolites 2024; 14:279. [PMID: 38786756 PMCID: PMC11123099 DOI: 10.3390/metabo14050279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
Purines are the building blocks of DNA/RNA, energy substrates, and cofactors. Purine metabolites, including ATP, GTP, NADH, and coenzyme A, are essential molecules in diverse biological processes such as energy metabolism, signal transduction, and enzyme activity. When purine levels increase, excess purines are either recycled to synthesize purine metabolites or catabolized to the end product uric acid. Purine catabolism increases during states of low oxygen tension (hypoxia and ischemia), but this metabolic pathway is incompletely understood in the context of histotoxic hypoxia (i.e., inhibition of oxygen utilization despite normal oxygen tension). In rabbits exposed to cyanide-a classical histotoxic hypoxia agent-we demonstrated significant increases in several concordant metabolites in the purine catabolic pathway (including plasma levels of uric acid, xanthosine, xanthine, hypoxanthine, and inosine) via mass spectrometry-based metabolite profiling. Pharmacological inhibition of the purine catabolic pathway with oxypurinol mitigated the deleterious effects of cyanide on skeletal muscle cytochrome c oxidase redox state, measured by non-invasive diffuse optical spectroscopy. Finally, plasma uric acid levels correlated strongly with those of lactic acid, an established clinical biomarker of cyanide exposure, in addition to a tissue biomarker of cyanide exposure (skeletal muscle cytochrome c oxidase redox state). Cumulatively, these findings not only shed light on the in vivo role(s) of cyanide but also have implications in the field of medical countermeasure (MCM) development.
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Affiliation(s)
- Jordan Morningstar
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Jangwoen Lee
- Beckman Laser Institute, University of California, Irvine, CA 92697, USA (S.M.); (M.B.)
| | - Sari Mahon
- Beckman Laser Institute, University of California, Irvine, CA 92697, USA (S.M.); (M.B.)
| | - Matthew Brenner
- Beckman Laser Institute, University of California, Irvine, CA 92697, USA (S.M.); (M.B.)
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of California, Irvine, CA 92697, USA
| | - Anjali K. Nath
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02215, USA
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Mangione R, Giallongo C, Duminuco A, La Spina E, Longhitano L, Giallongo S, Tibullo D, Lazzarino G, Saab MW, Sbriglione A, Palumbo GA, Graziani A, Alanazi AM, Di Pietro V, Tavazzi B, Amorini AM, Lazzarino G. Targeted Metabolomics Highlights Dramatic Antioxidant Depletion, Increased Oxidative/Nitrosative Stress and Altered Purine and Pyrimidine Concentrations in Serum of Primary Myelofibrosis Patients. Antioxidants (Basel) 2024; 13:490. [PMID: 38671937 PMCID: PMC11047794 DOI: 10.3390/antiox13040490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/13/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
To date, little is known concerning the circulating levels of biochemically relevant metabolites (antioxidants, oxidative/nitrosative stress biomarkers, purines, and pyrimidines) in patients with primary myelofibrosis (PMF), a rare form of myeloproliferative tumor causing a dramatic decrease in erythropoiesis and angiogenesis. In this study, using a targeted metabolomic approach, serum samples of 22 PMF patients and of 22 control healthy donors were analyzed to quantify the circulating concentrations of hypoxanthine, xanthine, uric acid (as representative purines), uracil, β-pseudouridine, uridine (as representative pyrimidines), reduced glutathione (GSH), ascorbic acid (as two of the main water-soluble antioxidants), malondialdehyde, nitrite, nitrate (as oxidative/nitrosative stress biomarkers) and creatinine, using well-established HPLC method for their determination. Results showed that PMF patients have dramatic depletions of both ascorbic acid and GSH (37.3- and 3.81-times lower circulating concentrations, respectively, than those recorded in healthy controls, p < 0.0001), accompanied by significant increases in malondialdehyde (MDA) and nitrite + nitrate (4.73- and 1.66-times higher circulating concentrations, respectively, than those recorded in healthy controls, p < 0.0001). Additionally, PMF patients have remarkable alterations of circulating purines, pyrimidines, and creatinine, suggesting potential mitochondrial dysfunctions causing energy metabolism imbalance and consequent increases in these cell energy-related compounds. Overall, these results, besides evidencing previously unknown serum metabolic alterations in PMF patients, suggest that the determination of serum levels of the aforementioned compounds may be useful to evaluate PMF patients on hospital admission for adjunctive therapies aimed at recovering their correct antioxidant status, as well as to monitor patients' status and potential pharmacological treatments.
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Affiliation(s)
- Renata Mangione
- Department of Basic Biotechnological Sciences, Intensive and Perioperative Clinics, Catholic University of the Sacred Heart of Rome, Largo F. Vito 1, 00168 Rome, Italy;
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Cesarina Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Andrea Duminuco
- Hematology Unit with BMT, A.O.U. Policlinico “G.Rodolico-San Marco”, Via S. Sofia 78, 95123 Catania, Italy;
| | - Enrico La Spina
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Sebastiano Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Arianna Sbriglione
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giuseppe A. Palumbo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Andrea Graziani
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Valentina Di Pietro
- Neurotrauma and Ophthalmology Research Group, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK
| | - Barbara Tavazzi
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giacomo Lazzarino
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
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Wang L, Yang L, Cheng XL, Qin XM, Chai Z, Li ZY. The Beneficial Effects of Dietary Astragali Radix Are Related to the Regulation of Gut Microbiota and Its Metabolites. J Med Food 2024; 27:22-34. [PMID: 38236693 DOI: 10.1089/jmf.2023.k.0091] [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] [Indexed: 01/23/2024] Open
Abstract
Astragali Radix (AR) or its extract has been used as an herbal medicine and dietary supplement in China, Europe, and the United States. The gut microbiota could provide new insights for exploring dietary supplements' underlying mechanism on organisms. However, no reports have focused on the regulatory effect of AR on the gut microbiota as a dietary supplement. In this study, healthy ICR mice of either sex were divided into AR and control (CON) groups and given AR water extract (4.55 mg/kg·day-1) or saline by gavage for 14 days, respectively. Then 16S rRNA gene sequencing and ultra-high-performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry-based fecal metabolomics were integrated to investigate the benefits of dietary AR. Weighted gene coexpression network analysis was also introduced to investigate the metabolites with highly synergistic changes. AR supplementation influenced the structure of intestinal microflora, especially enriching short-chain fatty acid-producing bacteria g_Coprobacillus, g_Prevotella, and g_Parabacteroides. AR also significantly altered the fecal metabolome, mainly related to amino acid metabolism, nucleotide metabolism, and bile acid (BA) metabolism. Moreover, the increased secondary BAs and BA-sulfates might closely relate to intestinal microflora. These findings provide valuable insights for future research of dietary AR as a functional food.
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Affiliation(s)
- Ling Wang
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Lan Yang
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xiao-Ling Cheng
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
| | - Zhi Chai
- College of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Zhen-Yu Li
- Modern Research Center for Traditional Chinese Medicine, The Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, Shanxi, China
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5
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Smith AM, Donley ELR, Ney DM, Amaral DG, Burrier RE, Natowicz MR. Metabolomic biomarkers in autism: identification of complex dysregulations of cellular bioenergetics. Front Psychiatry 2023; 14:1249578. [PMID: 37928922 PMCID: PMC10622772 DOI: 10.3389/fpsyt.2023.1249578] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/30/2023] [Indexed: 11/07/2023] Open
Abstract
Autism Spectrum Disorder (ASD or autism) is a phenotypically and etiologically heterogeneous condition. Identifying biomarkers of clinically significant metabolic subtypes of autism could improve understanding of its underlying pathophysiology and potentially lead to more targeted interventions. We hypothesized that the application of metabolite-based biomarker techniques using decision thresholds derived from quantitative measurements could identify autism-associated subpopulations. Metabolomic profiling was carried out in a case-control study of 499 autistic and 209 typically developing (TYP) children, ages 18-48 months, enrolled in the Children's Autism Metabolome Project (CAMP; ClinicalTrials.gov Identifier: NCT02548442). Fifty-four metabolites, associated with amino acid, organic acid, acylcarnitine and purine metabolism as well as microbiome-associated metabolites, were quantified using liquid chromatography-tandem mass spectrometry. Using quantitative thresholds, the concentrations of 4 metabolites and 149 ratios of metabolites were identified as biomarkers, each identifying subpopulations of 4.5-11% of the CAMP autistic population. A subset of 42 biomarkers could identify CAMP autistic individuals with 72% sensitivity and 90% specificity. Many participants were identified by several metabolic biomarkers. Using hierarchical clustering, 30 clusters of biomarkers were created based on participants' biomarker profiles. Metabolic changes associated with the clusters suggest that altered regulation of cellular metabolism, especially of mitochondrial bioenergetics, were common metabolic phenotypes in this cohort of autistic participants. Autism severity and cognitive and developmental impairment were associated with increased lactate, many lactate containing ratios, and the number of biomarker clusters a participant displayed. These studies provide evidence that metabolic phenotyping is feasible and that defined autistic subgroups can lead to enhanced understanding of the underlying pathophysiology and potentially suggest pathways for targeted metabolic treatments.
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Affiliation(s)
- Alan M. Smith
- Stemina Biomarker Discovery, Inc, Madison, WI, United States
| | | | - Denise M. Ney
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, United States
| | - David G. Amaral
- Department of Psychiatry and Behavioral Sciences, The MIND Institute, University of California, Davis, Davis, CA, United States
| | | | - Marvin R. Natowicz
- Pathology and Laboratory Medicine, Genomic Medicine, Neurological and Pediatrics Institutes, Cleveland Clinic, Cleveland, OH, United States
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6
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Wang H, Gao R, Liu J, Zhang S, Zhao Y, Yu Z. UPLC-Q-Exactive-based rats serum metabolomics for characterization of traditional Chinese medicine Natures and Flavors. JOURNAL OF ETHNOPHARMACOLOGY 2023; 302:115931. [PMID: 36410573 DOI: 10.1016/j.jep.2022.115931] [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: 09/15/2022] [Revised: 10/17/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED ETHNOPHARMACOLOGY RELEVANT: "Four Natures and five "Flavors" comes from the high generalization of medicine pharmacological rules from clinical practice by ancients. "Flavor" and "Natures"are both descriptions of the effect properties of traditional Chinese medicine. At present, researchers have realized that the "Flavors" (Pungent, Sour, Sweet, Bitter and Salty) are related to the different pharmacological effects of treatment. The "Natures" (Warm, Hot, Cold and Cool) are closely related to energy and substance metabolism and contribute to the effect of the "Flavors". Since "Four Natures and five Flavors" are the rules derived from clinical practice, how to describe and characterize "Natures" and "Flavors" scientifically is still a problem that needs to be solved. AIM OF THE STUDY the aim is to objectively further understand the scientific connotations of properties ("Flavors"and "Natures") from the perspective of metabolomics and characterize them by metabolites. MATERIALS AND METHOD "Pungent-Neutral", "Sweet-Neutral and "Bitter-Neutral" TCMs were selected to characterize the "Flavors" (Pungent, Sweet and Bitter). "Pungent-Warm" and "Bitter-Cold" were selected to characterize the "Natures" (Warm and Cold). The rat serum metabolomics was performed on UHPLC-Q-Exactive. Metabolites were identified through the metabolites databases and related literature. RESULTS The "Flavors" and "Natures" metabolites were identified, respectively, including four "Pungent", four "Sweet" and thirteen "Bitter" characterized metabolites and thirteen "Cold" and sixteen "Warm"related metabolites. CONCLUSIONS The "Natures" characterized metabolites show the "Natures" are closely related to lipid and energy metabolism. The "Warm" may promote lipid metabolism to produce ATP to generate energy through bile acid metabolism and purine metabolism. The "Cold" may inhibit lipid metabolism to generate ATP to decrease energy through the way of tryptophan metabolism and purine metabolism. The "Flavors" characteristic metabolites can provide a theoretical basis for the rules of the "Flavors". These metabolites can also be used to characterize TCM's "Natures" and "Flavors" in the development of traditional Chinese medicine resources and quality control.
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Affiliation(s)
- Hong Wang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Ruofang Gao
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jing Liu
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Shuang Zhang
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yunli Zhao
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Zhiguo Yu
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Cao C, Li Q, Chen Y, Zou M, Sun C, Li X, Wu L. Untargeted Metabolomic Analysis Reveals the Metabolic Disturbances and Exacerbation of Oxidative Stress in the Cerebral Cortex of a BTBR Mouse Model of Autism. J Mol Neurosci 2023; 73:15-27. [PMID: 36574152 DOI: 10.1007/s12031-022-02096-6] [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: 09/14/2022] [Accepted: 12/09/2022] [Indexed: 12/28/2022]
Abstract
The etiology and pathology of autism spectrum disorders (ASDs) are still poorly understood, which largely limit the treatment and diagnosis of ASDs. Emerging evidence supports that abnormal metabolites in the cerebral cortex of a BTBR mouse model of autism are involved in the pathogenesis of autism. However, systematic study on global metabolites in the cerebral cortex of BTBR mice has not been conducted. The current study aims to characterize metabolic changes in the cerebral cortex of BTBR mice by using an untargeted metabolomic approach based on UPLC-Q-TOF/MS. C57BL/6 J mice were used as a control group. A total of 14 differential metabolites were identified. Compared with the control group, the intensities of PI(16:0/22:5(4Z,7Z,10Z,13Z,16Z)), PC(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/18:1(9Z)), PA(16:0/18:1(11Z)), 17-beta-estradiol-3-glucuronide, and N6,N6,N6-trimethyl-L-lysine decreased significantly (p < 0.01) and the intensities of 2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline, LysoPC(20:4(5Z,8Z,11Z,14Z)/0:0), adenosine monophosphate, adenosine-5'-phosphosulfate, LacCer(d18:1/12:0),3-dehydro-L-gulonate, N-(1-deoxy-1-fructosyl)tryptophan, homovanillic acid, and LPA(0:0/18:1(9Z)) increased significantly (p < 0.01) in the BTBR group. These changes in metabolites were closely related to perturbations in lipid metabolism, energy metabolism, purine metabolism, sulfur metabolism, amino acid metabolism, and carnitine biosynthesis. Notably, exacerbation of the oxidative stress response caused by differential prooxidant metabolites led to alteration of antioxidative systems in the cerebral cortex and resulted in mitochondrial dysfunction, further leading to abnormal energy metabolism as an etiological mechanism of autism. A central role of abnormal metabolites in neurological functions associated with behavioral outcomes and disturbance of sulfur metabolism and carnitine biosynthesis were found in the cerebral cortex of BTBR mice, which helped increase our understanding for exploring the pathological mechanism of autism.
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Affiliation(s)
- Can Cao
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Qi Li
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yanping Chen
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Mingyang Zou
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Caihong Sun
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xiangning Li
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Lijie Wu
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin, Heilongjiang, 150081, China.
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Chen C, Ding PC, Li Z, Shi GQ, Sun Y, Kantorovich LN, Besenbacher F, Yu M. Super‐Robust Xanthine–Sodium Complexes on Au(111). Angew Chem Int Ed Engl 2022; 61:e202200064. [DOI: 10.1002/anie.202200064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Chong Chen
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
- School of Chemistry and Chemical Engineering Suzhou University Suzhou 234000 China
- Interdisciplinary Nanoscience Center (iNANO) and Deptment of Physics and Astronomy Aarhus University Aarhus 8000 Denmark
| | - Pengcheng C. Ding
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
- School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin 150001 China
| | - Zhuo Li
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Guoqiang Q. Shi
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Ye Sun
- School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin 150001 China
| | - Lev N. Kantorovich
- Department of Physics King's College London The Strand London WC2R 2LS UK
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO) and Deptment of Physics and Astronomy Aarhus University Aarhus 8000 Denmark
| | - Miao Yu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
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Determination of xanthine using a ratiometric fluorescence probe based on boron-doped carbon quantum dots and gold nanoclusters. Mikrochim Acta 2022; 189:148. [PMID: 35299262 DOI: 10.1007/s00604-021-05139-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/07/2021] [Indexed: 10/18/2022]
Abstract
A dual-emission ratiometric fluorescent sensing system based on boron-doped carbon quantum dots (B-CQDs) and gold nanoclusters (AuNCs) has been developed for the determination of xanthine. The blue fluorescence of B-CQDs at 445 nm is then reduced by the AuNCs through the inner filter effect (IFE) under a single excitation wavelength of 370 nm. By the catalysis of xanthine oxidase (XOD), xanthine is oxidized by oxygen dissolved in the solution to produce H2O2. The horseradish peroxidase (HRP) catalyzes H2O2 to generate hydroxyl radicals, which can quench the fluorescence of AuNCs, leading to the recovery of the fluorescence of B-CQDs. Based on the relationship between the fluorescence intensity ratio (F445/F665) and the concentration of xanthine, the designed method exhibits a good linearity range of 1.2-500.0 μmol L -1 and a limit of detection of 0.37 μmol L -1. The ratiometric fluorescent is applied to determine xanthine in human urine samples. Good recoveries of spiked samples in the range 99.2-105.0% are obtained by the proposed assay, with relative standard deviations (RSD) ranging from 0.9 to 2.6%.
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10
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Chen C, Ding PC, Li Z, Shi GQ, Sun Y, Kantorovich LN, Besenbacher F, Yu M. Super‐Robust Xanthine–Sodium Complexes on Au(111). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chong Chen
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
- School of Chemistry and Chemical Engineering Suzhou University Suzhou 234000 China
- Interdisciplinary Nanoscience Center (iNANO) and Deptment of Physics and Astronomy Aarhus University Aarhus 8000 Denmark
| | - Pengcheng C. Ding
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
- School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin 150001 China
| | - Zhuo Li
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Guoqiang Q. Shi
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
| | - Ye Sun
- School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin 150001 China
| | - Lev N. Kantorovich
- Department of Physics King's College London The Strand London WC2R 2LS UK
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO) and Deptment of Physics and Astronomy Aarhus University Aarhus 8000 Denmark
| | - Miao Yu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China
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11
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Heiling S, Knutti N, Scherr F, Geiger J, Weikert J, Rose M, Jahns R, Ceglarek U, Scherag A, Kiehntopf M. Metabolite Ratios as Quality Indicators for Pre-Analytical Variation in Serum and EDTA Plasma. Metabolites 2021; 11:638. [PMID: 34564454 PMCID: PMC8465943 DOI: 10.3390/metabo11090638] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/18/2022] Open
Abstract
In clinical diagnostics and research, blood samples are one of the most frequently used materials. Nevertheless, exploring the chemical composition of human plasma and serum is challenging due to the highly dynamic influence of pre-analytical variation. A prominent example is the variability in pre-centrifugation delay (time-to-centrifugation; TTC). Quality indicators (QI) reflecting sample TTC are of utmost importance in assessing sample history and resulting sample quality, which is essential for accurate diagnostics and conclusive, reproducible research. In the present study, we subjected human blood to varying TTCs at room temperature prior to processing for plasma or serum preparation. Potential sample QIs were identified by Ultra high pressure liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) based metabolite profiling in samples from healthy volunteers (n = 10). Selected QIs were validated by a targeted MS/MS approach in two independent sets of samples from patients (n = 40 and n = 70). In serum, the hypoxanthine/guanosine (HG) and hypoxanthine/inosine (HI) ratios demonstrated high diagnostic performance (Sensitivity/Specificity > 80%) for the discrimination of samples with a TTC > 1 h. We identified several eicosanoids, such as 12-HETE, 15-(S)-HETE, 8-(S)-HETE, 12-oxo-HETE, (±)13-HODE and 12-(S)-HEPE as QIs for a pre-centrifugation delay > 2 h. 12-HETE, 12-oxo-HETE, 8-(S)-HETE, and 12-(S)-HEPE, and the HI- and HG-ratios could be validated in patient samples.
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Affiliation(s)
- Sven Heiling
- Institute of Clinical Chemistry and Laboratory Diagnostics and Integrated Biobank Jena (IBBJ), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (N.K.); (F.S.); (M.R.)
| | - Nadine Knutti
- Institute of Clinical Chemistry and Laboratory Diagnostics and Integrated Biobank Jena (IBBJ), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (N.K.); (F.S.); (M.R.)
| | - Franziska Scherr
- Institute of Clinical Chemistry and Laboratory Diagnostics and Integrated Biobank Jena (IBBJ), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (N.K.); (F.S.); (M.R.)
| | - Jörg Geiger
- Interdisciplinary Bank of Biological Material and Data Würzburg (IBDW), Straubmühlweg 2a, Haus A9, 97078 Würzburg, Germany; (J.G.); (R.J.)
| | - Juliane Weikert
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, 04103 Leipzig, Germany; (J.W.); (U.C.)
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103 Leipzig, Germany
| | - Michael Rose
- Institute of Clinical Chemistry and Laboratory Diagnostics and Integrated Biobank Jena (IBBJ), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (N.K.); (F.S.); (M.R.)
| | - Roland Jahns
- Interdisciplinary Bank of Biological Material and Data Würzburg (IBDW), Straubmühlweg 2a, Haus A9, 97078 Würzburg, Germany; (J.G.); (R.J.)
| | - Uta Ceglarek
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, 04103 Leipzig, Germany; (J.W.); (U.C.)
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, 04103 Leipzig, Germany
| | - André Scherag
- Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, Bachstrasse 18, 07743 Jena, Germany;
| | - Michael Kiehntopf
- Institute of Clinical Chemistry and Laboratory Diagnostics and Integrated Biobank Jena (IBBJ), University Hospital Jena, Am Klinikum 1, 07747 Jena, Germany; (N.K.); (F.S.); (M.R.)
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12
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Pu J, Liu Y, Zhang H, Tian L, Gui S, Yu Y, Chen X, Chen Y, Yang L, Ran Y, Zhong X, Xu S, Song X, Liu L, Zheng P, Wang H, Xie P. An integrated meta-analysis of peripheral blood metabolites and biological functions in major depressive disorder. Mol Psychiatry 2021; 26:4265-4276. [PMID: 31959849 PMCID: PMC8550972 DOI: 10.1038/s41380-020-0645-4] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/24/2019] [Accepted: 01/10/2020] [Indexed: 01/10/2023]
Abstract
Major depressive disorder (MDD) is a serious mental illness, characterized by high morbidity, which has increased in recent decades. However, the molecular mechanisms underlying MDD remain unclear. Previous studies have identified altered metabolic profiles in peripheral tissues associated with MDD. Using curated metabolic characterization data from a large sample of MDD patients, we meta-analyzed the results of metabolites in peripheral blood. Pathway and network analyses were then performed to elucidate the biological themes within these altered metabolites. We identified 23 differentially expressed metabolites between MDD patients and controls from 46 studies. MDD patients were characterized by higher levels of asymmetric dimethylarginine, tyramine, 2-hydroxybutyric acid, phosphatidylcholine (32:1), and taurochenodesoxycholic acid and lower levels of L-acetylcarnitine, creatinine, L-asparagine, L-glutamine, linoleic acid, pyruvic acid, palmitoleic acid, L-serine, oleic acid, myo-inositol, dodecanoic acid, L-methionine, hypoxanthine, palmitic acid, L-tryptophan, kynurenic acid, taurine, and 25-hydroxyvitamin D compared with controls. L-tryptophan and kynurenic acid were consistently downregulated in MDD patients, regardless of antidepressant exposure. Depression rating scores were negatively associated with decreased levels of L-tryptophan. Pathway and network analyses revealed altered amino acid metabolism and lipid metabolism, especially for the tryptophan-kynurenine pathway and fatty acid metabolism, in the peripheral system of MDD patients. Taken together, our integrated results revealed that metabolic changes in the peripheral blood were associated with MDD, particularly decreased L-tryptophan and kynurenic acid levels, and alterations in the tryptophan-kynurenine and fatty acid metabolism pathways. Our findings may facilitate biomarker development and the elucidation of the molecular mechanisms that underly MDD.
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Affiliation(s)
- Juncai Pu
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Yiyun Liu
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Hanping Zhang
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Lu Tian
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Siwen Gui
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Yue Yu
- grid.203458.80000 0000 8653 0555College of Medical Informatics, Chongqing Medical University, Chongqing, 400016 China ,grid.66875.3a0000 0004 0459 167XDepartment of Health Sciences Research, Mayo Clinic, Rochester, MN 55901 USA
| | - Xiang Chen
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Yue Chen
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Lining Yang
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Yanqin Ran
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Xiaogang Zhong
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Shaohua Xu
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Xuemian Song
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Lanxiang Liu
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Peng Zheng
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.452206.70000 0004 1758 417XDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Haiyang Wang
- grid.452206.70000 0004 1758 417XNHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016 China ,grid.203458.80000 0000 8653 0555Chongqing Key Laboratory of Neurobiology, Chongqing, 400016 China
| | - Peng Xie
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Yuzhong District, Chongqing, 400016, China. .,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China. .,Chongqing Key Laboratory of Neurobiology, Chongqing, 400016, China.
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13
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Duarte D, Castro B, Pereira JL, Marques JF, Costa AL, Gil AM. Evaluation of Saliva Stability for NMR Metabolomics: Collection and Handling Protocols. Metabolites 2020; 10:E515. [PMID: 33352779 PMCID: PMC7766053 DOI: 10.3390/metabo10120515] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/15/2022] Open
Abstract
Maintaining a salivary metabolic profile upon sample collection and preparation is determinant in metabolomics. Nuclear magnetic resonance (NMR) spectroscopy was used to identify metabolite changes during short-term storage, at room temperature (RT)/4 °C/-20 °C, and after sample preparation, at RT/4 °C (mimicking typical clinical/laboratory settings). Interestingly, significant metabolic inter-individual and inter-day variability were noted, probably determining sample stability to some extent. After collection, no changes were noted at -20 °C (at least for 4 weeks). RT storage induced decreases in methylated macromolecules (6 h); lactate (8 h); alanine (12 h); galactose, hypoxanthine, pyruvate (24 h); sarcosine, betaine, choline, N-acetyl-glycoproteins (48 h), while acetate increased (48 h). Less, but different, changes were observed at 4 °C, suggesting different oral and microbial status at different temperatures (with a possible contribution from inter-individual and inter-day variability), and identifying galactose, hypoxanthine, and possibly, choline esters, as potential general stability indicators. After preparation, addition of NaN3 did not impact significantly on saliva stabilization, neither at RT nor at 4 °C, although its absence was accompanied by slight increases in fucose (6.5 h) and proline (8 h) at RT, and in xylose (24 h) at 4 °C. The putative metabolic origins of the above variations are discussed, with basis on the salivary microbiome. In summary, after collection, saliva can be stored at RT/4 °C for up to 6 h and at -20 °C for at least 4 weeks. Upon preparation for NMR analysis, samples are highly stable at 25 °C up to 8 h and at 4 °C up to 48 h, with NaN3 addition preventing possible early changes in fucose, proline (6-8 h), and xylose (24 h) levels.
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Affiliation(s)
- Daniela Duarte
- CICECO—Department of Chemistry, Aveiro Institute of Materials, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (D.D.); (B.C.)
| | - Beatriz Castro
- CICECO—Department of Chemistry, Aveiro Institute of Materials, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (D.D.); (B.C.)
| | - Joana Leonor Pereira
- Dentistry Department, Faculty of Medicine, Institute of Paediatric and Preventive Dentistry, University of Coimbra, 3000-075 Coimbra, Portugal; (J.L.P.); (A.L.C.)
| | - Joana Faria Marques
- GIBBO-Oral Biology and Biochemistry Research Group, CEMBDE-COCHRANE Portugal—Faculty of Dental Medicine, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
| | - Ana Luísa Costa
- Dentistry Department, Faculty of Medicine, Institute of Paediatric and Preventive Dentistry, University of Coimbra, 3000-075 Coimbra, Portugal; (J.L.P.); (A.L.C.)
| | - Ana M. Gil
- CICECO—Department of Chemistry, Aveiro Institute of Materials, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (D.D.); (B.C.)
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14
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Ory P, Hamani V, Bodet PE, Murillo L, Graber M. The variegated scallop, Mimachlamys varia, undergoes alterations in several of its metabolic pathways under short-term zinc exposure. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 37:100779. [PMID: 33360397 DOI: 10.1016/j.cbd.2020.100779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/19/2020] [Accepted: 11/20/2020] [Indexed: 01/25/2023]
Abstract
The variegated scallop (Mimachlamys varia) is a filter feeder bivalve encountered in marine regions of the Atlantic coast. In particular, it is present in the La Rochelle marina (France), where it is used for the biomonitoring of marine pollution, due to its ability to strongly bioaccumulate pollutants. In this semi-closed environment, contamination generated by port activities leads to an accumulation of both organic and metal pollutants. Zinc is one of these pollutants, present at a dose of up to 150 μg.L-1. This study investigated the effects of 48 h zinc exposure upon the metabolic profiles of Mimachlamys varia using UHPLC/QToF (ultra-high performance liquid chromatography-quadrupole time-of-flight) tandem mass spectrometry metabolomics. After acclimation in mesocosms recreating in situ conditions, both controls and exposed with Zn2+ (150 μg.L-1) bivalves were dissected to recover the gills after 48 h and stored at -80 °C before metabolites extraction. UHPLC/QToF tandem mass spectrometry was performed to study metabolite composition of samples. Statistical analysis of results using multivariate techniques showed a good classification between control and exposed groups. Eleven identified metabolites were found to be down-modulated in exposed scallops. These variations could reflect potential zinc effects on several of the biological processes, such as energy metabolism, osmoregulation and defense against oxidative stress. Among the eleven metabolites highlighted, four were reported for the first time in an aquatic organism exposed to Zn. This study demonstrates once again the diversity of interactions between bivalves and metals and the complexity of the physiological response of marine bivalves to pollutants.
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Affiliation(s)
- P Ory
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - V Hamani
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - P-E Bodet
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - L Murillo
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - M Graber
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France.
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15
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Peplinska-Miaskowska J, Wichowicz H, Smolenski RT, Jablonska P, Kaska L. Comparison of plasma nucleotide metabolites and amino acids pattern in patients with binge eating disorder and obesity. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 40:32-42. [PMID: 33021434 DOI: 10.1080/15257770.2020.1825733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Binge eating disorder (BED) increasingly affects population, but the mechanisms of the disease and its biomarkers are not well characterized. Recently, plasma purines, pyrimidines, amino acid and nicotinamide metabolites profiling attracted attention in studies on pathology and biomarkers of mental disorders but has not been adequately studied in BED. Blood and plasma samples were taken from patients with adult obese with BED (n = 20) and control adult obese without BED (n = 17). Plasma samples were analyzed for nucleotides and amino acid concentrations with high-performance liquid chromatography-mass spectrometry. BED had a significantly (p < 0.05) lower uridine and hypoxanthine to creatinine ratio compared to the control group. Among the amino acids BED patients had significantly (p < 0.05) lower concentrations of glutamic acid, leucine, isoleucine and the whole branched-chain amino acids group, while the concentration of citrulline was increased. Among nicotinamide metabolites, 1-methylnicotinamide levels were significantly (p < 0.05) lower. This study highlights potential use of profiling nucleotide metabolite and amino acid pattern in BED patients that may provide information on mechanisms and potential biomarkers. However, further investigation in larger population is necessary to identify clinical correlates of the observed changes.
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Affiliation(s)
| | - Hubert Wichowicz
- Department of Psychiatry, Medical University of Gdansk, Gdansk, Poland.,Pomeranian University in Słupsk, Institute of Health Sciences Słupsk ul
| | | | - Patrycja Jablonska
- Department of Biochemistry, Medical University of Gdansk, Gdansk, Poland
| | - Lukasz Kaska
- Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Gdansk, Poland
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16
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Watanabe H, Hattori T, Kume A, Misu K, Ito T, Koike Y, Johnson TA, Kamitsuji S, Kamatani N, Sobue G. Improved Parkinsons disease motor score in a single-arm open-label trial of febuxostat and inosine. Medicine (Baltimore) 2020; 99:e21576. [PMID: 32871874 PMCID: PMC7458241 DOI: 10.1097/md.0000000000021576] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cellular energetics play an important role in Parkinsons disease etiology, but no treatments directly address this deficiency. Our past research showed that treatment with febuxostat and inosine increased blood hypoxanthine and ATP in healthy adults, and a preliminary trial in 3 Parkinson's disease patients suggested some symptomatic improvements with no adverse effects. METHODS To examine the efficacy on symptoms and safety in a larger group of Parkinsons disease patients, we conducted a single-arm, open-label trial at 5 Japanese neurology clinics and enrolled thirty patients (nmales = 11; nfemales = 19); 26 patients completed the study (nmales = 10; nfemales = 16). Each patient was administered febuxostat 20 mg and inosine 500 mg twice-per-day (after breakfast and dinner) for 8 weeks. The primary endpoint was the difference of MDS-UPDRS Part III score immediately before and after 57 days of treatment. RESULTS Serum hypoxanthine concentrations were raised significantly after treatment (Pre = 11.4 μM; Post = 38.1 μM; P < .0001). MDS-UPDRS Part III score was significantly lower after treatment (Pre = 28.1 ± 9.3; Post = 24.7 ± 10.8; mean ± SD; P = .0146). Sixteen adverse events occurred in 13/29 (44.8%) patients, including 1 serious adverse event (fracture of the second lumbar vertebra) that was considered not related to the treatment. CONCLUSIONS The results of this study suggest that co-administration of febuxostat and inosine is relatively safe and effective for improving symptoms of Parkinsons disease patients. Further controlled trials need to be performed to confirm the symptomatic improvement and to examine the disease-modifying effect in long-term trials.
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Affiliation(s)
- Hirohisa Watanabe
- Nagoya University Graduate School of Medicine, Brain and Mind Research Center, Nagoya
- Fujita Health University School of Medicine, Department of Neurology, Toyoake
| | | | | | | | | | | | | | | | | | - Gen Sobue
- Nagoya University Graduate School of Medicine, Brain and Mind Research Center, Nagoya
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17
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Del Coco L, Majellaro M, Boccarelli A, Cellamare S, Altomare CD, Fanizzi FP. Novel Antiproliferative Biphenyl Nicotinamide: NMR Metabolomic Study of its Effect on the MCF-7 Cell in Comparison with Cisplatin and Vinblastine. Molecules 2020; 25:E3502. [PMID: 32752035 PMCID: PMC7435671 DOI: 10.3390/molecules25153502] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 12/20/2022] Open
Abstract
A 1H-NMR-based metabolomic study was performed on MCF-7 cell lines treated with a novel nicotinamide derivative (DT-8) in comparison with two drugs characterized by a well-established mechanism of action, namely the DNA-metalating drug cisplatin (cis-diamminedichloridoplatinum(II), CDDP) and the antimitotic drug vinblastine (vinblastine, VIN). The effects of the three compounds, each one at the concentration corresponding to the IC50 value, were investigated, with respect to the controls (K), by the 1H-NMR of cells lysates and multivariate analysis (MVA) of the spectroscopic data. Relevant differences were found in the metabolic profiles of the different treatments with respect to the controls. A large overlap of the metabolic profiles in DT-8 vs. K and VIN vs. K suggests a similar biological response and mechanism of action, significantly diverse with respect to CDDP. On the other hand, DT8 seems to act by disorganizing the mitotic spindle and ultimately blocking the cell division, through a mechanism implying methionine depletion and/or S-adenosylmethionine (SAM) limitation.
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Affiliation(s)
- Laura Del Coco
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Prov.le Lecce-Monteroni, I-73100 Lecce, Italy;
| | - Maria Majellaro
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari, Via Orabona 4, 70125 Bari, Italy; (M.M.); (S.C.); (C.D.A.)
- Department of Organic Chemistry, Faculty of Pharmacy, Center for Research in Biological Chemistry and Molecular Materials (CiQUS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Angelina Boccarelli
- Department of Biomedical Sciences and Human Oncology, University of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Saverio Cellamare
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari, Via Orabona 4, 70125 Bari, Italy; (M.M.); (S.C.); (C.D.A.)
| | - Cosimo Damiano Altomare
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari, Via Orabona 4, 70125 Bari, Italy; (M.M.); (S.C.); (C.D.A.)
| | - Francesco Paolo Fanizzi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Prov.le Lecce-Monteroni, I-73100 Lecce, Italy;
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Hippocampal Metabolite Profiles in Two Rat Models of Autism: NMR-Based Metabolomics Studies. Mol Neurobiol 2020; 57:3089-3105. [PMID: 32468248 PMCID: PMC7320041 DOI: 10.1007/s12035-020-01935-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/13/2020] [Indexed: 12/22/2022]
Abstract
Autism spectrum disorders (ASDs) are increasingly being diagnosed. Hypotheses link ASD to genetic, epigenetic, or environmental factors. The role of oxidative stress and the imbalance between excitatory and inhibitory neurotransmission in the pathogenesis of ASD has been suggested. Rats in which ASD symptoms are induced by valproate (VPA) or thalidomide (THAL) application in utero are useful models in ASD studies. Our study investigated whether rats in ASD models show changes in metabolite levels in the brain consistent with the hypothetical pathomechanisms of ASD. Female rats were fed one dose of 800 mg/kg VPA or 500 mg/kg THAL orally on the 11th day of gestation, and 1-month offspring were used for the experiments. Metabolic profiles from proton nuclear magnetic resonance spectroscopy of hydrophilic and hydrophobic extracts of rat hippocampi were subjected to OPLS-DA statistical analysis. Large differences between both models in the content of several metabolites in the rat hippocampus were noticed. The following metabolic pathways were identified as being disturbed in both ASD models: steroid hormone biosynthesis; fatty acid biosynthesis; the synthesis and degradation of ketone bodies; glycerophospholipid metabolism; cholesterol metabolism; purine metabolism; arginine and proline metabolism; valine, leucine, and isoleucine biosynthesis and degradation. These results indicate disorders of energy metabolism, altered structure of cell membranes, changes in neurotransmission, and the induction of oxidative stress in the hippocampus. Our data, consistent with hypotheses of ASD pathomechanisms, may be useful in future ASD studies, especially for the interpretation of the results of metabolomics analysis of body fluids in rat ASD models.
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Pigaiani N, Bertaso A, De Palo EF, Bortolotti F, Tagliaro F. Vitreous humor endogenous compounds analysis for post-mortem forensic investigation. Forensic Sci Int 2020; 310:110235. [PMID: 32169668 DOI: 10.1016/j.forsciint.2020.110235] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 01/04/2023]
Abstract
The chemical and biochemical analysis of bodily fluids after death is an important thanatochemical approach to assess the cause and time since death. Vitreous humor (VH) has been used as a biofluid for forensic purposes since the 1960s. Due to its established relevance in toxicology, a literature review highlighting the use of VH with an emphasis on endogenous compounds has not yet been undertaken. VH is a chemically complex aqueous solution of carbohydrates, proteins, electrolytes and other small molecules present in living organisms; this biofluid is useful tool for its isolated environment, preserved from bacterial contamination, decomposition, autolysis, and metabolic reactions. The post-mortem analysis of VH provides an important tool for the estimation of the post-mortem interval (PMI), which can be helpful in determining the cause of death. Consequently, the present review evaluates the recent chemical and biochemical advances with particular importance on the endogenous compounds present at the time of death and their modification over time, which are valuable for the PMI prediction and to identify the cause of death.
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Affiliation(s)
- Nicola Pigaiani
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy.
| | - Anna Bertaso
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy.
| | - Elio Franco De Palo
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy
| | - Federica Bortolotti
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy
| | - Franco Tagliaro
- Department of Diagnostics and Public Health - Unit of Forensic Medicine, University of Verona, P.le L.A. Scuro 10, Verona, Italy; Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow, Russia
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20
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Hasoň S, Ostatná V, Fojta M. Simultaneous voltammetric determination of free tryptophan, uric acid, xanthine and hypoxanthine in plasma and urine. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Geijsen AJ, Brezina S, Keski‐Rahkonen P, Baierl A, Bachleitner‐Hofmann T, Bergmann MM, Boehm J, Brenner H, Chang‐Claude J, van Duijnhoven FJ, Gigic B, Gumpenberger T, Hofer P, Hoffmeister M, Holowatyj AN, Karner‐Hanusch J, Kok DE, Leeb G, Ulvik A, Robinot N, Ose J, Stift A, Schrotz‐King P, Ulrich AB, Ueland PM, Kampman E, Scalbert A, Habermann N, Gsur A, Ulrich CM. Plasma metabolites associated with colorectal cancer: A discovery-replication strategy. Int J Cancer 2019; 145:1221-1231. [PMID: 30665271 PMCID: PMC6614008 DOI: 10.1002/ijc.32146] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/08/2019] [Indexed: 12/24/2022]
Abstract
Colorectal cancer is known to arise from multiple tumorigenic pathways; however, the underlying mechanisms remain not completely understood. Metabolomics is becoming an increasingly popular tool in assessing biological processes. Previous metabolomics research focusing on colorectal cancer is limited by sample size and did not replicate findings in independent study populations to verify robustness of reported findings. Here, we performed a ultrahigh performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) screening on EDTA plasma from 268 colorectal cancer patients and 353 controls using independent discovery and replication sets from two European cohorts (ColoCare Study: n = 180 patients/n = 153 controls; the Colorectal Cancer Study of Austria (CORSA) n = 88 patients/n = 200 controls), aiming to identify circulating plasma metabolites associated with colorectal cancer and to improve knowledge regarding colorectal cancer etiology. Multiple logistic regression models were used to test the association between disease state and metabolic features. Statistically significant associated features in the discovery set were taken forward and tested in the replication set to assure robustness of our findings. All models were adjusted for sex, age, BMI and smoking status and corrected for multiple testing using False Discovery Rate. Demographic and clinical data were abstracted from questionnaires and medical records.
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Affiliation(s)
- Anne J.M.R. Geijsen
- Division of Human Nutrition and HealthWageningen University & ResearchWageningenThe Netherlands
| | - Stefanie Brezina
- Institute of Cancer Research, Department of Medicine IMedical University of ViennaAustria
| | | | - Andreas Baierl
- Department of Statistics and Operations ResearchUniversity of ViennaAustria
| | | | | | - Juergen Boehm
- Huntsman Cancer InstituteSalt Lake CityUT
- Department of Population Health SciencesUniversity of UtahSalt Lake CityUT
| | - Hermann Brenner
- Division of Preventive OncologyNational Center for Tumor Diseases and German Cancer Research CenterHeidelbergGermany
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
- German Cancer Consortium (DKTK)German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Jenny Chang‐Claude
- Division of Cancer EpidemiologyGerman Cancer Research CenterHeidelbergGermany
| | | | - Biljana Gigic
- Department of General, Visceral and Transplantation SurgeryUniversity of HeidelbergGermany
| | - Tanja Gumpenberger
- Institute of Cancer Research, Department of Medicine IMedical University of ViennaAustria
| | - Philipp Hofer
- Institute of Cancer Research, Department of Medicine IMedical University of ViennaAustria
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
| | - Andreana N. Holowatyj
- Huntsman Cancer InstituteSalt Lake CityUT
- Department of Population Health SciencesUniversity of UtahSalt Lake CityUT
| | | | - Dieuwertje E. Kok
- Division of Human Nutrition and HealthWageningen University & ResearchWageningenThe Netherlands
| | | | | | | | - Jennifer Ose
- Huntsman Cancer InstituteSalt Lake CityUT
- Department of Population Health SciencesUniversity of UtahSalt Lake CityUT
| | - Anton Stift
- Department of SurgeryMedical University ViennaAustria
| | - Petra Schrotz‐King
- Division of Preventive OncologyNational Center for Tumor Diseases and German Cancer Research CenterHeidelbergGermany
| | - Alexis B. Ulrich
- Department of General, Visceral and Transplantation SurgeryUniversity of HeidelbergGermany
| | | | - Ellen Kampman
- Division of Human Nutrition and HealthWageningen University & ResearchWageningenThe Netherlands
| | - Augustin Scalbert
- Biomarkers GroupInternational Agency for Research on CancerLyonFrance
| | - Nina Habermann
- Division of Preventive OncologyNational Center for Tumor Diseases and German Cancer Research CenterHeidelbergGermany
- Genome BiologyEuropean Molecular Biology Laboratory (EMBL)HeidelbergGermany
| | - Andrea Gsur
- Institute of Cancer Research, Department of Medicine IMedical University of ViennaAustria
| | - Cornelia M. Ulrich
- Huntsman Cancer InstituteSalt Lake CityUT
- Department of Population Health SciencesUniversity of UtahSalt Lake CityUT
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Johnson TA, Jinnah HA, Kamatani N. Shortage of Cellular ATP as a Cause of Diseases and Strategies to Enhance ATP. Front Pharmacol 2019; 10:98. [PMID: 30837873 PMCID: PMC6390775 DOI: 10.3389/fphar.2019.00098] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/24/2019] [Indexed: 12/14/2022] Open
Abstract
Germline mutations in cellular-energy associated genes have been shown to lead to various monogenic disorders. Notably, mitochondrial disorders often impact skeletal muscle, brain, liver, heart, and kidneys, which are the body’s top energy-consuming organs. However, energy-related dysfunctions have not been widely seen as causes of common diseases, although evidence points to such a link for certain disorders. During acute energy consumption, like extreme exercise, cells increase the favorability of the adenylate kinase reaction 2-ADP -> ATP+AMP by AMP deaminase degrading AMP to IMP, which further degrades to inosine and then to purines hypoxanthine -> xanthine -> urate. Thus, increased blood urate levels may act as a barometer of extreme energy consumption. AMP deaminase deficient subjects experience some negative effects like decreased muscle power output, but also positive effects such as decreased diabetes and improved prognosis for chronic heart failure patients. That may reflect decreased energy consumption from maintaining the pool of IMP for salvage to AMP and then ATP, since de novo IMP synthesis requires burning seven ATPs. Similarly, beneficial effects have been seen in heart, skeletal muscle, or brain after treatment with allopurinol or febuxostat to inhibit xanthine oxidoreductase, which catalyzes hypoxanthine -> xanthine and xanthine -> urate reactions. Some disorders of those organs may reflect dysfunction in energy-consumption/production, and the observed beneficial effects related to reinforcement of ATP re-synthesis due to increased hypoxanthine levels in the blood and tissues. Recent clinical studies indicated that treatment with xanthine oxidoreductase inhibitors plus inosine had the strongest impact for increasing the pool of salvageable purines and leading to increased ATP levels in humans, thereby suggesting that this combination is more beneficial than a xanthine oxidoreductase inhibitor alone to treat disorders with ATP deficiency.
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Affiliation(s)
| | - H A Jinnah
- Departments of Neurology and Human Genetics, Emory University School of Medicine, Atlanta, GA, United States
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23
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Suzuki M, Yoshioka M, Ohno Y, Akune Y. Plasma metabolomic analysis in mature female common bottlenose dolphins: profiling the characteristics of metabolites after overnight fasting by comparison with data in beagle dogs. Sci Rep 2018; 8:12030. [PMID: 30104643 PMCID: PMC6089887 DOI: 10.1038/s41598-018-30563-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 08/02/2018] [Indexed: 12/14/2022] Open
Abstract
The present study was aimed at determining the characteristics of plasma metabolites in bottlenose dolphins to provide a greater understanding of their metabolism and to obtain information for the health management of cetaceans. Capillary electrophoresis-time-of-flight mass spectrometry (CE-TOFMS) and liquid chromatograph-time-of-flight mass spectrometry (LC-TOFMS) were conducted on plasma samples after overnight fasting from three common bottlenose dolphins as well as three beagle dogs (representative terrestrial carnivores) for comparison. In total, 257 and 227 plasma metabolites were identified in the dolphins and the dogs, respectively. Although a small number of animals were used for each species, the heatmap patterns, a principal component analysis and a cluster analysis confirmed that the composition of metabolites could be segregated from each other. Of 257 compounds detected in dolphin plasma, 24 compounds including branched amino acids, creatinine, urea, and methylhistidine were more abundant than in dogs; 26 compounds including long-chained acyl-carnitines and fatty acids, astaxanthin, and pantothenic acid were detected only in dolphins. In contrast, 25 compounds containing lactic acid and glycerol 3-phosphate were lower in dolphins compared to dogs. These data imply active protein metabolism, differences in usage of lipids, a unique urea cycle, and a low activity of the glycolytic pathway in dolphins.
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Affiliation(s)
- Miwa Suzuki
- Department of Marine Resources and Sciences, College of Bioresource Sciences, Nihon University, Kameino, Fujisawa, Kanagawa, 252-0880, Japan.
| | - Motoi Yoshioka
- Cetacean Research Center, Graduate School of Bioresources, Mie University, Kurimamachiya, Tsu, Mie, 514-8507, Japan.
| | - Yoshito Ohno
- Port of Nagoya Public Aquarium, Minato, Nagoya, Aichi, 455-0033, Japan
| | - Yuichiro Akune
- Port of Nagoya Public Aquarium, Minato, Nagoya, Aichi, 455-0033, Japan
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24
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Jiang G, Shen X, Kang H, Li K, Zheng J, Yu Y. Serum metabolite profiling of cutaneous T-cell lymphoma based on a multiplatform approach. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1077-1078:71-76. [PMID: 29413580 DOI: 10.1016/j.jchromb.2018.01.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 12/07/2017] [Accepted: 01/26/2018] [Indexed: 12/29/2022]
Abstract
Cutaneous T-cell lymphoma (CTCL) is a class of non-Hodgkin lymphoma with a difficult early diagnosis. The overall annual age-adjusted incidence of CTCL had consistently increased to around 10.2 cases per million persons. However, our knowledge regarding its mechanism of disease origin and progression remains unclear. In this study, serum samples from 31 CTCL patients and 31 matched healthy volunteers were analyzed in depth to screen metabolites capable of differentiating CTCL from controls. To obtain a higher coverage of metabolome with various hydrophilicity, a multiplatform approach with GC-MS and UHPLC-QTOF-MS has been employed. Data were analyzed by multivariate statistical analysis and CTCL group was separated from control group successfully using supervised OPLS-DA model. A total of 51 CTCL-regulated metabolites were identified, among which 15 differential metabolites have an AUC > 0.9 in receiver operating characteristic (ROC) curve analysis. Glycerophospholipid metabolism, tryptophan metabolism and purine metabolism were highlighted as 3 major altered pathways in CTCL serum. These alterations revealed impacts to membrane stability and weakened immune as well as ATP depletion associated with CTCL. Overall, these results aid in improving understanding of the mechanism related to CTCL, and demonstrate this multiplatform approach is suitable for serum metabolomics researches.
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Affiliation(s)
- Guoting Jiang
- School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Xiaoyan Shen
- Department of Dermatology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, PR China
| | - Hongyan Kang
- School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Kejia Li
- Department of Dermatology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, PR China
| | - Jie Zheng
- Department of Dermatology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, PR China.
| | - Yunqiu Yu
- School of Pharmacy, Fudan University, Shanghai 201203, PR China.
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25
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Guo S, Duan R, Wang L, Hou Y, Tan L, Cheng Q, Liao M, Ding B. Dietary α-ketoglutarate supplementation improves hepatic and intestinal energy status and anti-oxidative capacity of Cherry Valley ducks. Anim Sci J 2017; 88:1753-1762. [PMID: 28594103 DOI: 10.1111/asj.12824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 03/21/2017] [Indexed: 12/25/2022]
Abstract
α-Ketoglutarate (AKG) is an extensively used dietary supplement in human and animal nutrition. The aim of the present study was to investigate effects of dietary AKG supplementation on the energy status and anti-oxidative capacity in liver and intestinal mucosa of Cherry Valley ducks. A total of 80 1-day-old ducks were randomly assigned into four groups, in which ducks were fed basal diets supplemented with 0% (control), 0.5%, 1.0% and 1.5% AKG, respectively. Graded doses of AKG supplementation linearly decreased the ratio of adenosine monophosphate (AMP) to adenosine triphosphate (ATP) in the liver, but increased ATP content and adenylate energy charge (AEC) in a quadratic and linear manner, respectively (P < 0.05). Increasing dietary AKG supplemental levels produced linear positive responses in ATP content and AEC, and negative responses in AMP concentration, the ratio of AMP to ATP and total adenine nucleotide in the ileal mucosa (P < 0.05). All levels of dietary AKG reduced the production of jejunal hydrogen peroxide and hepatic malondialdehyde (P < 0.05). Hepatic and ileal messenger RNA expression of AMP kinase α-1 and hypoxia-inducible factor-1α were linearly up-regulated as dietary AKG supplemental levels increased (P < 0.05). In conclusion, dietary AKG supplementation linearly or quadratically enhanced hepatic and intestinal energy storage and anti-oxidative capacity of Cherry Valley ducks.
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Affiliation(s)
- Shuangshuang Guo
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Rui Duan
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Lei Wang
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Yongqing Hou
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Linglin Tan
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Qiang Cheng
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Man Liao
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Binying Ding
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
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Biasibetti-Brendler H, Schmitz F, Pierozan P, Zanotto BS, Prezzi CA, de Andrade RB, Wannmacher CMD, Wyse ATS. Hypoxanthine Induces Neuroenergetic Impairment and Cell Death in Striatum of Young Adult Wistar Rats. Mol Neurobiol 2017; 55:4098-4106. [PMID: 28593435 DOI: 10.1007/s12035-017-0634-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 05/22/2017] [Indexed: 12/18/2022]
Abstract
Hypoxanthine is the major purine involved in the salvage pathway of purines in the brain. High levels of hypoxanthine are characteristic of Lesch-Nyhan Disease. Since hypoxanthine is a purine closely related to ATP formation, the aim of this study was to investigate the effect of intrastriatal hypoxanthine administration on neuroenergetic parameters (pyruvate kinase, succinate dehydrogenase, complex II, cytochrome c oxidase, and ATP levels) and mitochondrial function (mitochondrial mass and membrane potential) in striatum of rats. We also evaluated the effect of cell death parameters (necrosis and apoptosis). Wistar rats of 60 days of life underwent stereotactic surgery and were divided into two groups: control (infusion of saline 0.9%) and hypoxanthine (10 μM). Intrastriatal hypoxanthine administration did not alter pyruvate kinase activity, but increased succinate dehydrogenase and complex II activities and diminished cytochrome c oxidase activity and immunocontent. Hypoxanthine injection decreased the percentage of cells with mitochondrial membrane label and increased mitochondrial membrane potential labeling. There was a decrease in the number of live cells and an increase in the number of apoptotic cells by caused hypoxanthine. Our findings show that intrastriatal hypoxanthine administration altered neuroenergetic parameters, and caused mitochondrial dysfunction and cell death by apoptosis, suggesting that these processes may be associated, at least in part, with neurological symptoms found in patients with Lesch-Nyhan Disease.
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Affiliation(s)
- Helena Biasibetti-Brendler
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Felipe Schmitz
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Paula Pierozan
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Bruna S Zanotto
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Caroline A Prezzi
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Rodrigo Binkowski de Andrade
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Clovis M D Wannmacher
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.,Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil
| | - Angela T S Wyse
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil. .,Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil. .,Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-Anexo, Porto Alegre, RS, 90035-003, Brazil.
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28
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Serum Compounds of Energy Metabolism Impairment Are Related to Disability, Disease Course and Neuroimaging in Multiple Sclerosis. Mol Neurobiol 2016; 54:7520-7533. [DOI: 10.1007/s12035-016-0257-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 10/24/2016] [Indexed: 12/15/2022]
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29
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The metabolomic signature of hematologic malignancies. Leuk Res 2016; 49:22-35. [PMID: 27526405 DOI: 10.1016/j.leukres.2016.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 08/04/2016] [Accepted: 08/08/2016] [Indexed: 12/17/2022]
Abstract
The ongoing accumulation of knowledge raises hopes that understanding tumor metabolism will provide new ways for predicting, diagnosing, and even treating cancers. Some metabolic biomarkers are at present routinely utilized to diagnose cancer and metabolic alterations of tumors are being confirmed as therapeutic targets. The growing utilization of metabolomics in clinical research may rapidly turn it into one of the most potent instruments used to detect and fight tumor. In fact, while the current state and trends of high throughput metabolomics profiling focus on the purpose of discovering biomarkers and hunting for metabolic mechanism, a prospective direction, namely reprogramming metabolomics, highlights the way to use metabolomics approach for the aim of treatment of disease by way of reconstruction of disturbed metabolic pathways. In this review, we present an ample summary of the current clinical appliances of metabolomics in hematological malignancies.
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30
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Mogensen KM, Lasky-Su J, Rogers AJ, Baron RM, Fredenburgh LE, Rawn J, Robinson MK, Massarro A, Choi AMK, Christopher KB. Metabolites Associated With Malnutrition in the Intensive Care Unit Are Also Associated With 28-Day Mortality. JPEN J Parenter Enteral Nutr 2016; 41:188-197. [PMID: 27406941 DOI: 10.1177/0148607116656164] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND We hypothesized that metabolic profiles would differ in critically ill patients with malnutrition relative to those without. MATERIALS AND METHODS We performed a prospective cohort study on 85 adult patients with systemic inflammatory response syndrome or sepsis admitted to a 20-bed medical intensive care unit (ICU) in Boston. We generated metabolomic profiles using gas and liquid chromatography and mass spectroscopy. We followed this by logistic regression and partial least squares discriminant analysis to identify individual metabolites that were significant. We then interrogated the entire metabolomics profile using metabolite set enrichment analysis and network model construction of chemical-protein target interactions to identify groups of metabolites and pathways that were differentiates in patients with and without malnutrition. RESULTS Of the cohort, 38% were malnourished at admission to the ICU. Metabolomic profiles differed in critically ill patients with malnutrition relative to those without. Ten metabolites were significantly associated with malnutrition ( P < .05). A parsimonious model of 5 metabolites effectively differentiated patients with malnutrition (AUC = 0.76), including pyroglutamine and hypoxanthine. Using pathway enrichment analysis, we identified a critical role of glutathione and purine metabolism in predicting nutrition. Nutrition status was associated with 28-day mortality, even after adjustment for known phenotypic variables associated with ICU mortality. Importantly, 7 metabolites associated with nutrition status were also associated with 28-day mortality. CONCLUSION Malnutrition is associated with differential metabolic profiles early in critical illness. Common to all of our metabolome analyses, glutathione and purine metabolism, which play principal roles in cellular redox regulation and accelerated tissue adenosine triphosphate degradation, respectively, were significantly altered with malnutrition.
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Affiliation(s)
- Kris M Mogensen
- 1 Department of Nutrition, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Jessica Lasky-Su
- 2 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Angela J Rogers
- 3 Pulmonary & Critical Care Medicine, Stanford University Medical Center, Palo Alto, California, USA
| | - Rebecca M Baron
- 4 Pulmonary and Critical Care Division, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Laura E Fredenburgh
- 4 Pulmonary and Critical Care Division, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - James Rawn
- 5 Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Malcolm K Robinson
- 5 Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Anthony Massarro
- 4 Pulmonary and Critical Care Division, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Augustine M K Choi
- 6 Department of Medicine, New York-Presbyterian Hospital, New York, New York, USA
| | - Kenneth B Christopher
- 7 The Nathan E. Hellman Memorial Laboratory, Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Kang YP, Lee SB, Lee JM, Kim HM, Hong JY, Lee WJ, Choi CW, Shin HK, Kim DJ, Koh ES, Park CS, Kwon SW, Park SW. Metabolic Profiling Regarding Pathogenesis of Idiopathic Pulmonary Fibrosis. J Proteome Res 2016; 15:1717-24. [PMID: 27052453 DOI: 10.1021/acs.jproteome.6b00156] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive, eventually fatal disease characterized by fibrosis of the lung parenchyma and loss of lung function. IPF is believed to be caused by repetitive alveolar epithelial cell injury and dysregulated repair process including uncontrolled proliferation of lung (myo) fibroblasts and excessive deposition of extracellular matrix proteins in the interstitial space; however, the pathogenic pathways involved in IPF have not been fully elucidated. In this study, we attempted to characterize metabolic changes of lung tissues involved in the pathogenesis of IPF using gas chromatography-mass spectrometry-based metabolic profiling. Partial least-squares discriminant analysis (PLS-DA) model generated from metabolite data was able to discriminate between the control subjects and IPF patients (R(2)X = 0.37, R(2)Y = 0.613 and Q(2) (cumulative) = 0.54, receiver operator characteristic AUC > 0.9). We discovered 25 metabolite signatures of IPF using both univariate and multivariate statistical analyses (FDR < 0.05 and VIP score of PLS-DA > 1). These metabolite signatures indicated alteration in metabolic pathways: adenosine triphosphate degradation pathway, glycolysis pathway, glutathione biosynthesis pathway, and ornithine aminotransferase pathway. The results could provide additional insight into understanding the disease and potential for developing biomarkers.
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Affiliation(s)
- Yun Pyo Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Sae Bom Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Ji-Min Lee
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Hyung Min Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Ji Yeon Hong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Won Jun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Chang Woo Choi
- Department of Thoracic and Cardiovascular Surgery, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Hwa Kyun Shin
- Department of Thoracic and Cardiovascular Surgery, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Do-Jin Kim
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Eun Suk Koh
- Department of Pathology, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Choon-Sik Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
| | - Sung Won Kwon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Sung-Woo Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital , 1174, Jung- Dong, Wonmi-Ku, Bucheon, Gyeonggi-Do 420-767, Korea
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Zang T, Broszczak DA, Broadbent JA, Cuttle L, Lu H, Parker TJ. The biochemistry of blister fluid from pediatric burn injuries: proteomics and metabolomics aspects. Expert Rev Proteomics 2015; 13:35-53. [PMID: 26581649 DOI: 10.1586/14789450.2016.1122528] [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: 12/18/2022]
Abstract
Burn injury is a prevalent and traumatic event for pediatric patients. At present, the diagnosis of burn injury severity is subjective and lacks a clinically relevant quantitative measure. This is due in part to a lack of knowledge surrounding the biochemistry of burn injuries and that of blister fluid. A more complete understanding of the blister fluid biochemistry may open new avenues for diagnostic and prognostic development. Burn insult induces a highly complex network of signaling processes and numerous changes within various biochemical systems, which can ultimately be examined using proteome and metabolome measurements. This review reports on the current understanding of burn wound biochemistry and outlines a technical approach for 'omics' profiling of blister fluid from burn wounds of differing severity.
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Affiliation(s)
- Tuo Zang
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia.,c Wound Management Innovation Co-operative Research Centre , West End , Australia
| | - Daniel A Broszczak
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia.,c Wound Management Innovation Co-operative Research Centre , West End , Australia
| | - James A Broadbent
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia.,c Wound Management Innovation Co-operative Research Centre , West End , Australia
| | - Leila Cuttle
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia.,d Centre for Children's Burns and Trauma Research , Queensland University of Technology, Institute of Health and Biomedical Innovation at the Centre for Children's Health Research , South Brisbane , Australia
| | - Haitao Lu
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia
| | - Tony J Parker
- a Tissue Repair and Regeneration Program , Institute of Health and Biomedical Innovation , Kelvin Grove , Australia.,b School of Biomedical Sciences , Queensland University of Technology , Brisbane , Australia
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Shi W, Fan H, Ai S, Zhu L. Pd nanoparticles supported on nitrogen, sulfur-doped three-dimensional hierarchical nanostructures as peroxidase-like catalysts for colorimetric detection of xanthine. RSC Adv 2015. [DOI: 10.1039/c5ra02312b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pd nanoparticles supported on N, S-doped three-dimensional hierarchical nanostructure acts as novel peroxidase mimic for sensitive detection of xanthine.
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Affiliation(s)
- Weijie Shi
- College of Chemistry and Material Science
- Shandong Agricultural University
- Taian
- P. R. China
- College of Resources and Environment
| | - Hai Fan
- College of Chemistry and Material Science
- Shandong Agricultural University
- Taian
- P. R. China
| | - Shiyun Ai
- College of Chemistry and Material Science
- Shandong Agricultural University
- Taian
- P. R. China
| | - Lusheng Zhu
- College of Resources and Environment
- Shandong Agricultural University
- Taian
- P. R. China
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Dudzinska W, Lubkowska A, Dolegowska B, Suska M, Janiak M. Uridine--an indicator of post-exercise uric acid concentration and blood pressure. Physiol Res 2014; 64:467-77. [PMID: 25470512 DOI: 10.33549/physiolres.932766] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Studies have shown that uridine concentration in plasma may be an indicator of uric acid production in patients with gout. It has been also postulated that uridine takes part in blood pressure regulation. Since physical exercise is an effective tool in treatment and prevention of cardio-vascular diseases that are often accompanied by hyperuricemia and hypertension, it seemed advisable to attempt to evaluate the relationship between oxypurine concentrations (Hyp, Xan and UA) and that of Urd and BP after physical exercise in healthy subjects. Sixty healthy men (17.2+/-1.71 years, BMI 23.2+/-2.31 kg m(-2), VO(2max) 54.7+/-6.48 ml kg(-1) min(-1)) took part in the study. The subjects performed a single maximal physical exercise on a bicycle ergometer. Blood for analyses was sampled three times: immediately before exercise, immediately after exercise, and in the 30th min of rest. Concentrations of uridine and hypoxanthine, xanthine and uric acid were determined in whole blood using high-performance liquid chromatography. We have shown in this study that the maximal exercise-induced increase of uridine concentration correlates with the post-exercise increase of uric acid concentration and systolic blood pressure. The results of our study show a relationship between uridine concentration in blood and uric acid concentration and blood pressure. We have been the first to demonstrate that a maximal exercise-induced increase in uridine concentration is correlated with the post-exercise and recovery-continued increase of uric acid concentration in healthy subjects. Thus, it appears that uridine may be an indicator of post-exercise hyperuricemia and blood pressure.
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Affiliation(s)
- W Dudzinska
- Department of Physiology, Faculty of Biology, University of Szczecin, Szczecin, Poland.
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Farias PAM, Castro AA. Determination of xanthine in the presence of hypoxanthine by adsorptive stripping voltammetry at the mercury film electrode. ANALYTICAL CHEMISTRY INSIGHTS 2014; 9:49-55. [PMID: 24940040 PMCID: PMC4055419 DOI: 10.4137/aci.s14712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/27/2014] [Accepted: 04/09/2014] [Indexed: 11/05/2022]
Abstract
A stripping method for the determination of xanthine in the presence of hypoxanthine at the submicromolar concentration levels is described. The method is based on controlled adsorptive accumulation at the thin-film mercury electrode followed by a fast linear scan voltammetric measurement of the surface species. Optimum experimental conditions were found to be the use of 1.0 × 10(-3) mol L(-1) NaOH solution as supporting electrolyte, an accumulation potential of 0.00 V for xanthine and -0.50 V for hypoxanthine-copper, and a linear scan rate of 200 mV second(-1). The response of xanthine is linear over the concentration ranges of 20-140 ppb. For an accumulation time of 30 minutes, the detection limit was found to be 36 ppt (2.3 × 10(-10) mol L(-1)). Adequate conditions for measuring the xanthine in the presence of hypoxanthine, copper and other metals, uric acid, and other nitrogenated bases were also investigated. The utility of the method is demonstrated by the presence of xanthine associated with hypoxanthine, uric acid, nitrogenated bases, ATP, and ssDNA.
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Affiliation(s)
| | - Arnaldo Aguiar Castro
- Department of Chemistry, Pontifícia Universidade Católica, Rua Marquês de São Vicente, Rio de Janeiro, Brazil. ; Facultad Quimica, Quimica Analitica, Universidad de La Habana, Cuba
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Donaldson AE, Lamont IL. Biochemistry changes that occur after death: potential markers for determining post-mortem interval. PLoS One 2013; 8:e82011. [PMID: 24278469 PMCID: PMC3836773 DOI: 10.1371/journal.pone.0082011] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 10/27/2013] [Indexed: 11/18/2022] Open
Abstract
Death is likely to result in very extensive biochemical changes in all body tissues due to lack of circulating oxygen, altered enzymatic reactions, cellular degradation, and cessation of anabolic production of metabolites. These biochemical changes may provide chemical markers for helping to more accurately determine the time since death (post-mortem interval), which is challenging to establish with current observation-based methodologies. In this study blood pH and changes in concentration of six metabolites (lactic acid, hypoxanthine, uric acid, ammonia, NADH and formic acid) were examined post-mortem over a 96 hour period in blood taken from animal corpses (rat and pig) and blood from rats and humans stored in vitro. The pH and the concentration of all six metabolites changed post-mortem but the extent and rate of change varied. Blood pH in corpses fell from 7.4 to 5.1. Concentrations of hypoxanthine, ammonia, NADH and formic acid all increased with time and these metabolites may be potential markers for post-mortem interval. The concentration of lactate increased and then remained at an elevated level and changes in the concentration were different in the rat compared to the human and pig. This is the first systematic study of multiple metabolic changes post-mortem and demonstrates the nature and extent of the changes that occur, in addition to identifying potential markers for estimating post-mortem interval.
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Affiliation(s)
- Andrea E. Donaldson
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
- * E-mail: (AED); (ILL)
| | - Iain L. Lamont
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
- * E-mail: (AED); (ILL)
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Hische M, Larhlimi A, Schwarz F, Fischer-Rosinský A, Bobbert T, Assmann A, Catchpole GS, Pfeiffer AF, Willmitzer L, Selbig J, Spranger J. A distinct metabolic signature predicts development of fasting plasma glucose. J Clin Bioinforma 2012; 2:3. [PMID: 22300499 PMCID: PMC3298809 DOI: 10.1186/2043-9113-2-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 02/02/2012] [Indexed: 11/16/2022] Open
Abstract
Background High blood glucose and diabetes are amongst the conditions causing the greatest losses in years of healthy life worldwide. Therefore, numerous studies aim to identify reliable risk markers for development of impaired glucose metabolism and type 2 diabetes. However, the molecular basis of impaired glucose metabolism is so far insufficiently understood. The development of so called 'omics' approaches in the recent years promises to identify molecular markers and to further understand the molecular basis of impaired glucose metabolism and type 2 diabetes. Although univariate statistical approaches are often applied, we demonstrate here that the application of multivariate statistical approaches is highly recommended to fully capture the complexity of data gained using high-throughput methods. Methods We took blood plasma samples from 172 subjects who participated in the prospective Metabolic Syndrome Berlin Potsdam follow-up study (MESY-BEPO Follow-up). We analysed these samples using Gas Chromatography coupled with Mass Spectrometry (GC-MS), and measured 286 metabolites. Furthermore, fasting glucose levels were measured using standard methods at baseline, and after an average of six years. We did correlation analysis and built linear regression models as well as Random Forest regression models to identify metabolites that predict the development of fasting glucose in our cohort. Results We found a metabolic pattern consisting of nine metabolites that predicted fasting glucose development with an accuracy of 0.47 in tenfold cross-validation using Random Forest regression. We also showed that adding established risk markers did not improve the model accuracy. However, external validation is eventually desirable. Although not all metabolites belonging to the final pattern are identified yet, the pattern directs attention to amino acid metabolism, energy metabolism and redox homeostasis. Conclusions We demonstrate that metabolites identified using a high-throughput method (GC-MS) perform well in predicting the development of fasting plasma glucose over several years. Notably, not single, but a complex pattern of metabolites propels the prediction and therefore reflects the complexity of the underlying molecular mechanisms. This result could only be captured by application of multivariate statistical approaches. Therefore, we highly recommend the usage of statistical methods that seize the complexity of the information given by high-throughput methods.
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Affiliation(s)
- Manuela Hische
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.,Department of Bioinformatics, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Abdelhalim Larhlimi
- Department of Bioinformatics, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Franziska Schwarz
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Antje Fischer-Rosinský
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Thomas Bobbert
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Anke Assmann
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Gareth S Catchpole
- Max-Planck-Institute for Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Andreas Fh Pfeiffer
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.,Department of Clinical Nutrition, German Institute of Human Nutrition, Arthur-Scheunert-Allee 144-116, 14558 Nuthetal, Germany
| | - Lothar Willmitzer
- Max-Planck-Institute for Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany.,King Abdulaziz University, P.O. Box 80203 Jeddah 21589, KSA
| | - Joachim Selbig
- Department of Bioinformatics, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany.,Max-Planck-Institute for Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Joachim Spranger
- Clinic of Endocrinology, Diabetes and Nutrition, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.,Experimental and Clinical Research Center (ECRC), Charité-University Medicine Berlin and Max-Delbrück Centre Berlin-Buch, Berlin, Germany.,Center for Cardiovascular Research (CCR), Charité-University Medicine Berlin, Berlin, Germany
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Schwille PO, Schmiedl A, Manoharan M, Wipplinger J. Idiopathic Recurrent Calcium Urolithiasis (IRCU): pathophysiology evaluated in light of oxidative metabolism, without and with variation of several biomarkers in fasting urine and plasma--a comparison of stone-free and -bearing male patients, emphasizing mineral, acid-base, blood pressure and protein status. Eur J Med Res 2011; 16:349-66. [PMID: 21813378 PMCID: PMC3351987 DOI: 10.1186/2047-783x-16-8-349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND IRCU is traditionally considered as life?style disease (associations with, among others, overweight, obesity, hypertension, type-2 diabetes), arising from excess, in 24 h urine, of calcium (Ca) salts (calcium oxalate (CaOx), calcium phosphate (CaPi)), supersaturation of, and crystallization in, tubular fluid and urine, causing crystal-induced epithelial cell damage, proteinuria, crystal aggregation and uroliths. METHODS Another picture emerges from the present uncontrolled study of 154 male adult IRCU patients (75 stone-bearing (SB) and 79 age-matched stone-free (SF)), in whom stone-forming and other parameters in fasting urine and plasma were contrasted with five biomarkers (see footnote) of oxidative metabolism (OM), without and with variation of markers. RESULTS 1) In SB vs. SF unstratified OM biomarkers were statistically unchanged, but the majority of patients was overweight; despite, in SB vs. SF urine pH, total and non-albumin protein concentration were elevated, fractional urinary uric acid excretion and blood bicarbonate decreased, whereas urine volume, sodium, supersaturation with CaOx and CaPi (as hydroxyapatite) were unchanged; 2) upon variation of OM markers (strata below and above median) numerous stone parameters differed significantly, among others urine volume, total protein, Ca/Pi ratio, pH, sodium, potassium, plasma Ca/Pi ratio and parathyroid hormone, blood pressure, renal excretion of non-albumin protein and other substances; 3) a significant shift from SF to SB patients occurred with increase of urine pH, decrease of blood bicarbonate, and increase of diastolic blood pressure, whereas increase of plasma uric acid impacted only marginally; 4) in both SF and SB patients a strong curvilinear relationship links a rise of urine Ca/Pi to urine Ca/Pi divided by plasma Ca/Pi, but in SB urine Ca/Pi failed to correlate significantly with urine hydroxyapatite supersaturation; 5) also in SB, plasma Ca/Pi and urinary nitrate were negatively correlated, whereas in SF plasma Ca/Pi ratio, PTH and body mass index correlated positively; 6) multivariate regression analysis revealed that PTH, body mass index and nitrate together could explain 22 (p = 0.002) and only 7 (p = 0.06) per cent of variation of plasma Ca/Pi in SF and SB, respectively. CONCLUSIONS In IRCU a) numerous constituents of fasting urine, plasma, blood and blood pressure change in response to variation of OM biomarkers, suggesting involvement of OM imbalance as factor in functional deterioration of tissue; b) in the majority of patients a positive exponential relationship links urine Ca/Pi to urine Ca/Pi divided by plasma Ca/Pi, presumably to accumulate Ca outside tubular lumen, thereby minimizing intratubular and urinary Ca salt crystallization; c) alteration of interactions of low urine nitrate, PTH and Ca/Pi in plasma may be of importance in formation of new Ca stone and co-regulation of dynamics of blood vasculature; d) overweight, combined with OM-modified renal interstitial environment appears to facilitate these processes, carrying the risk that CaPi mineral develops within or/and close to blood vessel tissue, and spreads towards urothelium. - For future research focussing on IRCU pathogenesis studies are recommended on the role of affluent lifestyle mediated renal ischemia, mild hypertensive nephropathy, rise of uric acid precursor oxypurines and uricemia, clarifying also why loss of significance of interrelationships of OM biomarkers with traditional Ca stone risk factors is characteristic for SB patients.
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Serum metabolic profile in multiple sclerosis patients. Mult Scler Int 2011; 2011:167156. [PMID: 22096628 PMCID: PMC3196932 DOI: 10.1155/2011/167156] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 03/30/2011] [Accepted: 05/02/2011] [Indexed: 12/31/2022] Open
Abstract
Multiple sclerosis (MS) is a progressive demyelinating process considered as an autoimmune disease, although the causes of this pathology have not been yet fully established. Similarly to other neurodegenerations, MS is characterized by a series of biochemical changes affecting to different extent neuronal functions; great attention has been given to oxidative/nitrosative stress and to alterations in mitochondrial functions. According to previous data, MS patients show significant changes in the circulating concentrations of different metabolites, although it is still unclear whether uric acid undergoes to decrease, increase, or no change under this pathological condition. In this study, we report the serum metabolic profile in terms of purines, pyrimidines, creatinine, malondialdehyde, ascorbic acid, nitrite, and nitrate in a group of 170 MS patients. The results show increase in circulating uric acid and other oxypurines (hypoxanthine and xanthine), as well as in uridine and β-pseudouridine. The concomitant increase in circulating creatinine, malondialdehyde, nitrite, and nitrate, and decrease in ascorbic acid, demonstrates that MS induces alteration in energy metabolism and in oxidants/antioxidants balance that can be monitored in serum of MS patients.
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40
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Yamamoto T, Koyama H, Kurajoh M, Shoji T, Tsutsumi Z, Moriwaki Y. Biochemistry of uridine in plasma. Clin Chim Acta 2011; 412:1712-24. [PMID: 21689643 DOI: 10.1016/j.cca.2011.06.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 06/04/2011] [Accepted: 06/06/2011] [Indexed: 11/18/2022]
Abstract
Uridine is a pyrimidine nucleoside that plays a crucial role in synthesis of RNA, glycogen, and biomembrane. In humans, uridine is present in plasma in considerably higher quantities than other purine and pyrimidine nucleosides, thus it may be utilized for endogenous pyrimidine synthesis. Uridine has a number of biological effects on a variety of organs with or without disease, such as the reproductive organs, central and peripheral nervous systems, and liver. In addition, it is used in clinical situations as a rescue agent to protect against the adverse effects of 5-fluorouracil. Since the biological actions of uridine may be related to its plasma concentration, it is important to examine factors that have effects on that concentration. Factors associated with an increase in plasma concentration of uridine include enhanced ATP consumption, enhanced uridine diphosphate (UDP)-glucose consumption via glycogenesis, inhibited uridine uptake by cells via the nucleoside transport pathway, increased intestinal absorption, and increased 5-phosphribosyl-1-pyrophosphate and urea synthesis. In contrast, factors that decrease the plasma concentration of uridine are associated with accelerated uridine uptake by cells via the nucleoside transport pathway and decreased pyrimidine synthesis.
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Affiliation(s)
- Tetsuya Yamamoto
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.
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Wang XX, Wu Q, Shan Z, Huang QM. BSA-stabilized Au clusters as peroxidase mimetics for use in xanthine detection. Biosens Bioelectron 2011; 26:3614-9. [DOI: 10.1016/j.bios.2011.02.014] [Citation(s) in RCA: 269] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 01/27/2011] [Accepted: 02/09/2011] [Indexed: 10/18/2022]
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Swann L, Forbes S, Lewis S. Analytical separations of mammalian decomposition products for forensic science: A review. Anal Chim Acta 2010; 682:9-22. [DOI: 10.1016/j.aca.2010.09.052] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/29/2010] [Accepted: 09/29/2010] [Indexed: 11/29/2022]
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Liu XR, Zheng XF, Ji SZ, Lv YH, Zheng DY, Xia ZF, Zhang WD. Metabolomic analysis of thermally injured and/or septic rats. Burns 2010; 36:992-8. [DOI: 10.1016/j.burns.2010.03.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Revised: 03/17/2010] [Accepted: 03/23/2010] [Indexed: 12/28/2022]
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Schicho R, Nazyrova A, Shaykhutdinov R, Duggan G, Vogel HJ, Storr M. Quantitative metabolomic profiling of serum and urine in DSS-induced ulcerative colitis of mice by (1)H NMR spectroscopy. J Proteome Res 2010; 9:6265-73. [PMID: 20886908 DOI: 10.1021/pr100547y] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Quantitative profiling of a large number of metabolic compounds is a promising method to detect biomarkers in inflammatory bowel diseases (IBD), such as ulcerative colitis (UC). We induced an experimental form of UC in mice by treatment with dextran sulfate sodium (DSS) and characterized 53 serum and 69 urine metabolites by use of (1)H NMR spectroscopy and quantitative ("targeted") analysis to distinguish between diseased and healthy animals. Hierarchical multivariate orthogonal partial least-squares (OPLS) models were developed to detect and predict separation of control and DSS-treated mice. DSS treatment resulted in weight loss, colonic inflammation, and increase in myeloperoxidase activity. Metabolomic patterns generated from the OPLS data clearly separated DSS-treated from control mice with a slightly higher predictive power (Q(2)) for serum (0.73) than urine (0.71). During DSS colitis, creatine, carnitine, and methylamines increased in urine while in serum, maximal increases were observed for ketone bodies, hypoxanthine, and tryptophan. Antioxidant metabolites decreased in urine whereas in serum, glucose and Krebs cycle intermediates decreased strongly. Quantitative metabolic profiling of serum and urine thus discriminates between healthy and DSS-treated mice. Analysis of serum or urine seems to be equally powerful for detecting experimental colitis, and a combined analysis offers only a minor improvement.
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Affiliation(s)
- Rudolf Schicho
- Department of Medicine, Division of Gastroenterology, Snyder Institute of Infection, Immunity and Inflammation, University of Calgary, Alberta, Canada.
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Modulation of circulating purines and pyrimidines by physical exercise in the horse. Eur J Appl Physiol 2010; 111:549-56. [PMID: 20931219 DOI: 10.1007/s00421-010-1673-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2010] [Indexed: 10/19/2022]
Abstract
This study was designed to examine the influence of sub-maximal exercise on purine and pyrimidine catabolism in horses. Ten horses were initially trained for 12 weeks at the end of which they underwent a standardized exercise test (SET); venous blood samples were taken at rest, 5 and 30 min after the SET. Six untrained healthy horses, from which a blood withdrawal was taken at rest, were used as the control group. Samples were analyzed by HPLC for the simultaneous determination of uric acid, uridine, β-pseudouridine and creatinine in plasma. Glucose and lactate were measured in blood. Trained horses had basal uridine levels significantly lower than sedentary horses. The SET caused significant increase in plasma uric acid, uridine, β-pseudouridine and creatinine. Following the SET, a significant negative correlation was found between plasma uridine and glucose, whilst a significant positive correlation was observed between plasma uric acid and creatinine. These results indicate that increase in energy demand during exercise in the horse causes not only the degradation of purine but also of pyrimidine compounds, the latter possibly exerting a control on glucose uptake as also demonstrated in human beings.
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Identification of hypoxanthine as a urine marker for non-Hodgkin lymphoma by low-mass-ion profiling. BMC Cancer 2010; 10:55. [PMID: 20175931 PMCID: PMC2841663 DOI: 10.1186/1471-2407-10-55] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Accepted: 02/23/2010] [Indexed: 12/31/2022] Open
Abstract
Background Non-Hodgkin lymphoma (NHL) is a hematologic malignancy for which good diagnostic markers are lacking. Despite continued improvement in our understanding of NHL, efforts to identify diagnostic markers have yielded dismal results. Here, we translated low-mass-ion information in urine samples from patients with NHL into a diagnostic marker. Methods To minimize experimental error, we tested variable parameters before MALDI-TOF analysis of low-mass ions in urine. Urine from 30 controls and 30 NHL patients was analyzed as a training set for NHL prediction. All individual peak areas were normalized to total area up to 1000 m/z. The training set analysis was repeated four times. Low-mass peaks that were not affected by changes in experimental conditions were collected using MarkerView™ software. Human Metabolome Database (HMDB) searches and ESI LC-MS/MS analyses were used to identify low-mass ions that exhibited differential patterns in control and NHL urines. Identified low-mass ions were validated in a blinded fashion in 95 controls and 66 NHL urines to determine their ability to discriminate NHL patients from controls. Results The 30 highest-ranking low-mass-ion peaks were selected from the 60-urine training set, and three low-mass-ion peaks with high intensity were selected for identification. Of these, a 137.08-m/z ion showed lower mass-peak intensity in urines of NHL patients, a result that was validated in a 161-urine blind validation set (95 controls and 66 NHL urines). The 130.08-m/z ion was identified from HMDB searches and ESI LC-MS/MS analyses as hypoxanthine (HX). The HX concentration in urines of NHL patients was significantly decreased (P < 0.001) and was correlated with the mass-peak area of the 137.08-m/z ion. At an HX concentration cutoff of 17.4 μM, sensitivity and specificity were 79.2% and 78.4%, respectively. Conclusions The present study represents a good example of low-mass-ion profiling in the setting of disease screening using urine. This technique can be a powerful non-invasive diagnostic tool with high sensitivity and specificity for NHL screening. Furthermore, HX identified in the study may be a useful single urine marker for NHL screening.
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Mardini Farias PA, Castro AA, Rebello Wagener ADL. Ultratrace Xanthine Determination in Diluted Alkaline Electrolyte by Adsorptive Stripping Voltammetry at the Mercury Film Electrode. ANAL LETT 2009. [DOI: 10.1080/00032710903082853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kaminsky Y, Kosenko E. Brain purine metabolism and xanthine dehydrogenase/oxidase conversion in hyperammonemia are under control of NMDA receptors and nitric oxide. Brain Res 2009; 1294:193-201. [PMID: 19646976 DOI: 10.1016/j.brainres.2009.07.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2009] [Revised: 07/17/2009] [Accepted: 07/18/2009] [Indexed: 10/20/2022]
Abstract
In hyperammonemia, a decrease in brain ATP can be a result of adenine nucleotide catabolism. Xanthine dehydrogenase (XD) and xanthine oxidase (XO) are the end steps in the purine catabolic pathway and directly involved in depletion of the adenylate pool in the cell. Besides, XD can easily be converted to XO to produce reactive oxygen species in the cell. In this study, the effects of acute ammonia intoxication in vivo on brain adenine nucleotide pool and xanthine and hypoxanthine, the end degradation products of adenine nucleotides, during the conversion of XD to XO were studied. Injection of rats with ammonium acetate was shown to lead to the dramatic decrease in the ATP level, adenine nucleotide pool size and adenylate energy charge and to the great increase in hypoxanthine and xanthine 11 min after the lethal dose indicating rapid degradation of adenylates. Conversion of XD to XO in hyperammonemic rat brain was evidenced by elevated XO/XD activity ratio. Injection of MK-801, a NMDA receptor blocker, prevented ammonia-induced catabolism of adenine nucleotides and conversion of XD to XO suggesting that in vivo these processes are mediated by activation of NMDA receptors. The in vitro dose-dependent effects of sodium nitroprusside, a NO donor, on XD and XO activities are indicative of the direct modification of the enzymes by nitric oxide. This is the first report evidencing the increase in brain xanthine and hypoxanthine levels and adenine nucleotide breakdown in acute ammonia intoxication and NMDA receptor-mediated prevention of these alterations.
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Affiliation(s)
- Yury Kaminsky
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia.
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Harkness RA, Gordon H. Myometrial stimulation by a fetal distress signal? Some evidence for an adenosine based mechanism in man. J OBSTET GYNAECOL 2009. [DOI: 10.3109/01443619109013557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Brighina E, Bresolin N, Pardi G, Rango M. Human fetal brain chemistry as detected by proton magnetic resonance spectroscopy. Pediatr Neurol 2009; 40:327-42. [PMID: 19380068 DOI: 10.1016/j.pediatrneurol.2008.11.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Revised: 11/03/2008] [Accepted: 11/19/2008] [Indexed: 11/25/2022]
Abstract
Magnetic resonance spectroscopy represents an invaluable tool for the in vivo study of brain development at the chemistry level. Whereas magnetic resonance spectroscopy has received wide attention in pediatric and adult settings, only a few studies were performed on the human fetal brain. They revealed changes occurring throughout gestation in the levels of the main metabolites detected by proton magnetic resonance spectroscopy (N-acetylaspartate, choline, myo-inositol, creatine, and glutamate), providing a reference for the normal metabolic brain development. Throughout the third trimester of gestation, N-acetylaspartate gradually increases, whereas choline undergoes a slow reduction during the process of myelination. Less clear are the modifications in creatine, myo-inositol, and glutamate levels. Under conditions of fetal distress, the meaning of lactate detection is unclear, and further studies are needed. Another field for investigation involves the possibility of early detection of glutamate levels in fetuses at risk for hypoxic-ischemic encephalopathy, because the role of glutamate excitotoxicity in this context is well-established. Because metabolic modifications may precede functional or morphologic changes in the central nervous system, magnetic resonance spectroscopy may likely serve as a powerful, noninvasive tool for the early diagnosis and prognosis of different pathologic conditions.
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Affiliation(s)
- Erika Brighina
- Foundation Instituto di Ricerca e Cura a Carattere Scientifico Policlinico, Mangiagalli and Regina Elena, University of Milan, Milan, Italy
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