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Han X, Wang W, Ma LH, AI-Ramahi I, Botas J, MacKenzie K, Allen GI, Young DW, Liu Z, Maletic-Savatic M. SPA-STOCSY: an automated tool for identifying annotated and non-annotated metabolites in high-throughput NMR spectra. Bioinformatics 2023; 39:btad593. [PMID: 37792497 PMCID: PMC10568371 DOI: 10.1093/bioinformatics/btad593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 07/31/2023] [Accepted: 10/02/2023] [Indexed: 10/06/2023] Open
Abstract
MOTIVATION Nuclear magnetic resonance spectroscopy (NMR) is widely used to analyze metabolites in biological samples, but the analysis requires specific expertise, it is time-consuming, and can be inaccurate. Here, we present a powerful automate tool, SPatial clustering Algorithm-Statistical TOtal Correlation SpectroscopY (SPA-STOCSY), which overcomes challenges faced when analyzing NMR data and identifies metabolites in a sample with high accuracy. RESULTS As a data-driven method, SPA-STOCSY estimates all parameters from the input dataset. It first investigates the covariance pattern among datapoints and then calculates the optimal threshold with which to cluster datapoints belonging to the same structural unit, i.e. the metabolite. Generated clusters are then automatically linked to a metabolite library to identify candidates. To assess SPA-STOCSY's efficiency and accuracy, we applied it to synthesized spectra and spectra acquired on Drosophila melanogaster tissue and human embryonic stem cells. In the synthesized spectra, SPA outperformed Statistical Recoupling of Variables (SRV), an existing method for clustering spectral peaks, by capturing a higher percentage of the signal regions and the close-to-zero noise regions. In the biological data, SPA-STOCSY performed comparably to the operator-based Chenomx analysis while avoiding operator bias, and it required <7 min of total computation time. Overall, SPA-STOCSY is a fast, accurate, and unbiased tool for untargeted analysis of metabolites in the NMR spectra. It may thus accelerate the use of NMR for scientific discoveries, medical diagnostics, and patient-specific decision making. AVAILABILITY AND IMPLEMENTATION The codes of SPA-STOCSY are available at https://github.com/LiuzLab/SPA-STOCSY.
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Affiliation(s)
- Xu Han
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Wanli Wang
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Graduate Program of Quantitative & Computational Biosciences, Baylor College of Medicine, Houston, TX 77030, United States
| | - Li-Hua Ma
- Advanced Technology Cores, Baylor College of Medicine, Houston, TX 77030, United States
| | - Ismael AI-Ramahi
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, United States
| | - Juan Botas
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, United States
| | - Kevin MacKenzie
- Advanced Technology Cores, Baylor College of Medicine, Houston, TX 77030, United States
- Center for Drug Discovery, Baylor College of Medicine, Houston, TX 77030, United States
| | - Genevera I Allen
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Electrical and Computer Engineering, Statistics, and Computer Science, Rice University, Houston, TX 77005-1827, United States
| | - Damian W Young
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Center for Drug Discovery, Baylor College of Medicine, Houston, TX 77030, United States
| | - Zhandong Liu
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Mirjana Maletic-Savatic
- Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX 77030, United States
- Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX 77030, United States
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Mujalli A, Farrash WF, Alghamdi KS, Obaid AA. Metabolite Alterations in Autoimmune Diseases: A Systematic Review of Metabolomics Studies. Metabolites 2023; 13:987. [PMID: 37755267 PMCID: PMC10537330 DOI: 10.3390/metabo13090987] [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: 07/25/2023] [Revised: 08/24/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023] Open
Abstract
Autoimmune diseases, characterized by the immune system's loss of self-tolerance, lack definitive diagnostic tests, necessitating the search for reliable biomarkers. This systematic review aims to identify common metabolite changes across multiple autoimmune diseases. Following PRISMA guidelines, we conducted a systematic literature review by searching MEDLINE, ScienceDirect, Google Scholar, PubMed, and Scopus (Elsevier) using keywords "Metabolomics", "Autoimmune diseases", and "Metabolic changes". Articles published in English up to March 2023 were included without a specific start date filter. Among 257 studies searched, 88 full-text articles met the inclusion criteria. The included articles were categorized based on analyzed biological fluids: 33 on serum, 21 on plasma, 15 on feces, 7 on urine, and 12 on other biological fluids. Each study presented different metabolites with indications of up-regulation or down-regulation when available. The current study's findings suggest that amino acid metabolism may serve as a diagnostic biomarker for autoimmune diseases, particularly in systemic lupus erythematosus (SLE), multiple sclerosis (MS), and Crohn's disease (CD). While other metabolic alterations were reported, it implies that autoimmune disorders trigger multi-metabolite changes rather than singular alterations. These shifts could be consequential outcomes of autoimmune disorders, representing a more complex interplay. Further studies are needed to validate the metabolomics findings associated with autoimmune diseases.
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Affiliation(s)
- Abdulrahman Mujalli
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia; (W.F.F.); (A.A.O.)
| | - Wesam F. Farrash
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia; (W.F.F.); (A.A.O.)
| | - Kawthar S. Alghamdi
- Department of Biology, College of Science, University of Hafr Al Batin, Hafar Al-Batin 39511, Saudi Arabia;
| | - Ahmad A. Obaid
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia; (W.F.F.); (A.A.O.)
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Al-Iedani O, Lea R, Ribbons K, Ramadan S, Lechner-Scott J. Neurometabolic changes in multiple sclerosis: Fingolimod versus beta interferon or glatiramer acetate therapy. J Neuroimaging 2022; 32:1109-1120. [PMID: 35922880 DOI: 10.1111/jon.13032] [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: 05/11/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Fingolimod has been shown to be more effective in reducing relapse rate and disability than injectable therapies in clinical trials. An increase in N-acetylaspartate (NAA) as measured by MR spectroscopy is correlated with maintaining axonal metabolic functions. This study compared the neurometabolic and volumetric changes in relapsing-remitting multiple sclerosis (RRMS) patients on fingolimod or injectable therapies with healthy controls (HCs). METHODS Ninety-eight RRMS (52 on fingolimod, 46 on injectable therapies (27 on glatiramer acetate and 19 on interferon) were age and sex-matched to 51 HCs. RRMS patients underwent cognitive, fatigue, and mental health assessments, as well as an Expanded disability status scale (EDSS). MRI/S was acquired from the hippocampus, posterior cingulate gyrus (PCG), and prefrontal cortex (PFC). Volumetric and neurometabolic measures were compared across cohorts using a univariate general linear model and correlated with clinical severity and neuropsychological scores. RESULTS Clinical parameters, MR-volumetric, and neurometabolic profiles showed no differences between treatment groups (p > .05). Compared to HCs, both RRMS cohorts showed volume changes in white matter (-13%), gray matter (-16%), and cerebral spinal fluid (CSF) (+17-23%), as well as reduced NAA (-17%, p = .001, hippocampus), (-7%, p = .001, PCG), and (-9%, p = .001, PFC). MRI/S metrics in three regions were moderately correlated with cognition and fatigue functions. CONCLUSION While both treatment arms showed overall similar volumetric and neurometabolic profiles, longitudinal studies are warranted to clarify neurometabolic changes and associations with treatment efficacy.
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Affiliation(s)
- Oun Al-Iedani
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Rodney Lea
- Hunter Medical Research Institute, New Lambton, New South Wales, Australia.,Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Karen Ribbons
- Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Saadallah Ramadan
- Hunter Medical Research Institute, New Lambton, New South Wales, Australia.,School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
| | - Jeannette Lechner-Scott
- Hunter Medical Research Institute, New Lambton, New South Wales, Australia.,School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia.,Department of Neurology, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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Liu Z, Waters J, Rui B. Metabolomics as a promising tool for improving understanding of multiple sclerosis: A review of recent advances. Biomed J 2022; 45:594-606. [PMID: 35042018 PMCID: PMC9486246 DOI: 10.1016/j.bj.2022.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 12/29/2021] [Accepted: 01/10/2022] [Indexed: 12/23/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system that usually affects young adults. The development of MS is closely related to the changes in the metabolome. Metabolomics studies have been performed using biofluids or tissue samples from rodent models and human patients to reveal metabolic alterations associated with MS progression. This review aims to provide an overview of the applications of metabolomics that for the investigations of the perturbed metabolic pathways in MS and to reveal the potential of metabolomics in personalizing treatments. In conclusion, informative variations of metabolites can be potential biomarkers in advancing our understanding of MS pathogenesis for MS diagnosis, predicting the progression of the disease, and estimating drug effects. Metabolomics will be a promising technique for improving clinical care in MS.
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Affiliation(s)
- Zhicheng Liu
- Anhui Provincial Laboratory of Inflammatory and Immunity Disease, Anhui Institute of Innovative Drugs School of Pharmacy, Anhui Medical University, Hefei, China.
| | - Jeffrey Waters
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA
| | - Bin Rui
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA.
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Guenter W, Betscher E, Bonek R. Predictive Value of the Third Ventricle Width for Neurological Status in Multiple Sclerosis. J Clin Med 2022; 11:jcm11102841. [PMID: 35628967 PMCID: PMC9145351 DOI: 10.3390/jcm11102841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/04/2022] [Accepted: 05/11/2022] [Indexed: 01/27/2023] Open
Abstract
The third ventricle width (3VW) is an easily calculated measure of brain atrophy. The aim of this study was to evaluate the relation of 3VW to cognitive impairment with adjustment for demographic and clinical confounders, including depression, anxiety, and fatigue, as well as to disability in patients with multiple sclerosis (MS). Symbol Digit Modalities Test, California Verbal Learning Test, Brief Visuospatial Memory Test-Revised, Expanded Disability Status Scale (EDSS), Hospital Anxiety and Depression Scale, and Modified Fatigue Impact Scale (MFIS) were analysed in 93 patients with MS. Neuropsychological performance was compared to that of 150 healthy controls. Axial images from 3D FLAIR were used to measure 3VW. In total, 25% of MS patients were impaired in at least two neuropsychological tests. Cognitive impairment and EDSS were associated with 3VW. Age and 3VW were the strongest predictors of cognitive impairment. The multiple regression model including age, 3VW, education, EDSS, and MFIS explained 63% of the variance of neuropsychological tests results, whereas 3VW, age and duration of the disease were significant predictors of EDSS. This study confirms the predictive value of 3VW for neurological status of patients with MS, especially for cognitive impairment after adjustment for demographic and clinical confounders.
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Affiliation(s)
- Wojciech Guenter
- Department of Clinical Neuropsychology, Nicolaus Copernicus University, 87-100 Toruń, Poland, and Collegium Medicum, 85-094 Bydgoszcz, Poland
- Division of Neurology and Clinical Neuroimmunology, Regional Specialized Hospital in Grudziądz, 86-300 Grudziądz, Poland; (E.B.); (R.B.)
- Correspondence: ; Tel./Fax: +00-48-(0)52-585-37-03
| | - Ewa Betscher
- Division of Neurology and Clinical Neuroimmunology, Regional Specialized Hospital in Grudziądz, 86-300 Grudziądz, Poland; (E.B.); (R.B.)
| | - Robert Bonek
- Division of Neurology and Clinical Neuroimmunology, Regional Specialized Hospital in Grudziądz, 86-300 Grudziądz, Poland; (E.B.); (R.B.)
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Weng Y, Yi C, Liang H, Lin K, Zheng X, Xiao J, Han H. The Brain Structural-Functional Vulnerability in Drug-Naive Children With Juvenile Idiopathic Arthritis: Insights From the Hippocampus. Front Hum Neurosci 2022; 16:833602. [PMID: 35370580 PMCID: PMC8973270 DOI: 10.3389/fnhum.2022.833602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/28/2022] [Indexed: 11/26/2022] Open
Abstract
Objective Leveraging an integrative multimodal MRI paradigm to elaborate on the hippocampus-derived structural and functional changes in children and adolescents with juvenile idiopathic arthritis (JIA) and to explore potential correlations within the “joint-inflammation-brain” axis during the period of central neural system (CNS) development. Methods Twenty-one patients with JIA all completed the multimodal MRI scanning, laboratory tests, and neuropsychological assessments; meanwhile, 23 matched controls were recruited. We then harnessed the spherical harmonics with a point distribution model (SPHARM-PDM) and the ROI-to-voxel functional connectivity (FC) to measure the hippocampal shape and hippocampo-cortical FC patterns. Correlation analysis was performed to explore the potential links in neuroimaging features with disease-related indices. Results Compared to controls, JIA patients only presented an atrophic tendency in the posterior part of the bilateral hippocampus. The hippocampo-cortical FC revealed the between-group divergences mainly located at the pain matrix, striatum, and temporal lobe. Remarkably, the enhanced FC between the right hippocampus and postcentral cortex is positively correlated with the disability index, while the weakened FC of right anterior hippocampus with right insula and that of left posterior hippocampus with left superior temporal gyrus was inversely related to the erythrocyte sedimentation rate and anxiety status, separately. Conclusion As with macroscopic damages, the altered functional-connectome patterns of the hippocampus in JIA patients might be more sensitive to detect the early neuropathological changes. Moreover, the functional disturbances were demonstrated associated with the physical disability, inflammation, and emotional status. These findings may enlighten us on the underlying neuropathological mechanism of CNS comorbidities in JIA.
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Affiliation(s)
- Yifei Weng
- Department of Radiology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Cuili Yi
- Department of Pediatrics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Hongyan Liang
- Department of Radiology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Kezhao Lin
- Department of Pediatrics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Xiaohuang Zheng
- Department of Pediatrics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Jihong Xiao
- Department of Pediatrics, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- *Correspondence: Jihong Xiao,
| | - Haiwei Han
- Department of Radiology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Haiwei Han, ; orcid.org/0000-0003-3608-4931
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Arm J, Al-Iedani O, Ribbons K, Lea R, Lechner-Scott J, Ramadan S. Biochemical Correlations with Fatigue in Multiple Sclerosis Detected by MR 2D Localized Correlated Spectroscopy. J Neuroimaging 2021; 31:508-516. [PMID: 33615583 DOI: 10.1111/jon.12836] [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: 10/20/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND AND PURPOSE Fatigue is the common symptom in patients with multiple sclerosis (MS), yet its pathophysiological mechanism is poorly understood. We investigated the metabolic changes in fatigue in a group of relapsing-remitting MS (RRMS) patients using MR two-dimensional localized correlated spectroscopy (2D L-COSY). METHODS Sixteen RRMS and 16 healthy controls were included in the study. Fatigue impact was assessed with the Modified Fatigue Impact Scale (MFIS). MR 2D L-COSY data were collected from the posterior cingulate cortex. Nonparametric statistical analysis was used to calculate the changes in creatine scaled metabolic ratios and their correlations with fatigue scores. RESULTS Compared to healthy controls, the RRMS group showed significantly higher fatigue and lower metabolic ratios for tyrosine, glutathione, homocarnosine (GSH+Hca), fucose-3, glutamine+glutamate (Glx), glycerophosphocholine (GPC), total choline, and N-acetylaspartate (NAA-2), while increased levels for isoleucine and glucose (P ≤ .05). Only GPC showed positive correlation with all fatigue domains (r = .537, P ≤ .05). On the other hand, Glx-upper, NAA-2, GSH+Hca, and fucose-3 showed negative correlations with all fatigue domains (r = -.345 to -.580, P ≤ .05). While tyrosine showed positive correlation with MFIS (r = .499, P ≤ .05), cognitive fatigue was negatively correlated with total GSH (r = -.530, P ≤ .05). No correlations were found between lesion load or brain volumes with fatigue score. CONCLUSIONS Our results suggest that fatigue in MS is strongly correlated with an imbalance in neurometabolites but not structural brain measurements.
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Affiliation(s)
- Jameen Arm
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Oun Al-Iedani
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Karen Ribbons
- Hunter Medical Research Institute, New Lambton Heights, Newcastle, Australia
| | - Rod Lea
- Hunter Medical Research Institute, New Lambton Heights, Newcastle, Australia.,Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Jeannette Lechner-Scott
- Hunter Medical Research Institute, New Lambton Heights, Newcastle, Australia.,Department of Neurology, John Hunter Hospital, New Lambton Heights, Newcastle, Australia.,School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia
| | - Saadallah Ramadan
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.,Hunter Medical Research Institute, New Lambton Heights, Newcastle, Australia
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Zahoor I, Rui B, Khan J, Datta I, Giri S. An emerging potential of metabolomics in multiple sclerosis: a comprehensive overview. Cell Mol Life Sci 2021; 78:3181-3203. [PMID: 33449145 PMCID: PMC8038957 DOI: 10.1007/s00018-020-03733-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/14/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023]
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the nervous system that primarily affects young adults. Although the exact etiology of the disease remains obscure, it is clear that alterations in the metabolome contribute to this process. As such, defining a reliable and disease-specific metabolome has tremendous potential as a diagnostic and therapeutic strategy for MS. Here, we provide an overview of studies aimed at identifying the role of metabolomics in MS. These offer new insights into disease pathophysiology and the contributions of metabolic pathways to this process, identify unique markers indicative of treatment responses, and demonstrate the therapeutic effects of drug-like metabolites in cellular and animal models of MS. By and large, the commonly perturbed pathways in MS and its preclinical model include lipid metabolism involving alpha-linoleic acid pathway, nucleotide metabolism, amino acid metabolism, tricarboxylic acid cycle, d-ornithine and d-arginine pathways with collective role in signaling and energy supply. The metabolomics studies suggest that metabolic profiling of MS patient samples may uncover biomarkers that will advance our understanding of disease pathogenesis and progression, reduce delays and mistakes in diagnosis, monitor the course of disease, and detect better drug targets, all of which will improve early therapeutic interventions and improve evaluation of response to these treatments.
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Affiliation(s)
- Insha Zahoor
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA. .,Department of Neurology, Henry Ford Hospital, Education & Research Building, Room 4023, 2799 W Grand Blvd, Detroit, MI, 48202, USA.
| | - Bin Rui
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Junaid Khan
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Indrani Datta
- Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Shailendra Giri
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA. .,Department of Neurology, Henry Ford Hospital, Education & Research Building, Room 4051, 2799 W Grand Blvd, Detroit, MI, 48202, USA.
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EkŞİ Z, ÇakiroĞlu M, Öz C, AralaŞmak A, Karadelİ HH, Özcan ME. Differentiation of relapsing-remitting and secondary progressive multiple sclerosis: a magnetic resonance spectroscopy study based on machine learning. ARQUIVOS DE NEURO-PSIQUIATRIA 2020; 78:789-796. [PMID: 33331515 DOI: 10.1590/0004-282x20200094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Magnetic resonance imaging (MRI) is the most important tool for diagnosis and follow-up in multiple sclerosis (MS). The discrimination of relapsing-remitting MS (RRMS) from secondary progressive MS (SPMS) is clinically difficult, and developing the proposal presented in this study would contribute to the process. OBJECTIVE This study aimed to ensure the automatic classification of healthy controls, RRMS, and SPMS by using MR spectroscopy and machine learning methods. METHODS MR spectroscopy (MRS) was performed on a total of 91 participants, distributed into healthy controls (n=30), RRMS (n=36), and SPMS (n=25). Firstly, MRS metabolites were identified using signal processing techniques. Secondly, feature extraction was performed based on MRS Spectra. N-acetylaspartate (NAA) was the most significant metabolite in differentiating MS types. Lastly, binary classifications (healthy controls-RRMS and RRMS-SPMS) were carried out according to features obtained by the Support Vector Machine algorithm. RESULTS RRMS cases were differentiated from healthy controls with 85% accuracy, 90.91% sensitivity, and 77.78% specificity. RRMS and SPMS were classified with 83.33% accuracy, 81.81% sensitivity, and 85.71% specificity. CONCLUSIONS A combined analysis of MRS and computer-aided diagnosis may be useful as a complementary imaging technique to determine MS types.
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Affiliation(s)
- Ziya EkŞİ
- Sakarya University, Department of Computer Engineering, Sakarya, Turkey
| | - Murat ÇakiroĞlu
- Sakarya University, Department of Mechatronic Engineering, Sakarya, Turkey
| | - Cemil Öz
- Sakarya University, Department of Computer Engineering, Sakarya, Turkey
| | - Ayse AralaŞmak
- Memorial Bahçelievler Hospital, Department of Radiology, Istanbul, Turkey
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Neurochemical Changes in the Brain and Neuropsychiatric Symptoms in Clinically Isolated Syndrome. J Clin Med 2020; 9:jcm9123909. [PMID: 33276455 PMCID: PMC7761482 DOI: 10.3390/jcm9123909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/08/2020] [Accepted: 11/28/2020] [Indexed: 11/20/2022] Open
Abstract
To assess cognitive impairment and affective symptoms and their association with damage to normal-appearing white matter (NAWM) in patients with clinically isolated syndrome (CIS), we compared neuropsychological test scores between patients with CIS and healthy controls and examined correlations between these and proton magnetic resonance spectroscopy (1H-MRS) outcomes in patients with CIS. Forty patients with CIS and 40 healthy participants were tested with a set of neuropsychological tests, which included the Beck Depression Inventory (BDI) and the Hospital Anxiety and Depression Scale (HADS). Single-voxel 1H-MRS was performed on frontal and parietal NAWM of patients with CIS to assess ratios of N-acetyl-aspartate (NAA) to creatine (Cr), myo-inositol (mI), and choline (Cho), as well as mI/Cr and Cho/Cr ratios. Patients with CIS had lower cognitive performance and higher scores for the BDI and anxiety subscale of HADS than healthy controls. There were significant correlations between the following neuropsychological tests and metabolic ratios in the frontal NAWM: Stroop Color-Word Test and Cho/Cr, Symbol Digit Modalities Test and mI/Cr, as well as NAA/mI, Go/no-go reaction time, and NAA/Cho, as well as NAA/mI, Californian Verbal Learning Test, and NAA/Cr. BDI scores were related to frontal NAA/mI and parietal NAA/Cr and Cho/Cr ratios, whereas HADS-depression scores were associated with frontal NAA/Cr and NAA/mI and parietal NAA/Cr and Cho/Cr ratios. HADS-anxiety correlated with parietal NAA/Cr ratio. This study suggests that neurochemical changes in the NAWM assessed with single-voxel 1H-MRS are associated with cognitive performance and affective symptoms in patients with CIS.
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11
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Thoman ME, McKarns SC. Metabolomic Profiling in Neuromyelitis Optica Spectrum Disorder Biomarker Discovery. Metabolites 2020; 10:metabo10090374. [PMID: 32961928 PMCID: PMC7570337 DOI: 10.3390/metabo10090374] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/04/2020] [Accepted: 09/12/2020] [Indexed: 12/21/2022] Open
Abstract
There is no specific test for diagnosing neuromyelitis optica spectrum disorder (NMOSD), a disabling autoimmune disease of the central nervous system. Instead, diagnosis relies on ruling out other related disorders with overlapping clinical symptoms. An urgency for NMOSD biomarker discovery is underscored by adverse responses to treatment following misdiagnosis and poor prognosis following the delayed onset of treatment. Pathogenic autoantibiotics that target the water channel aquaporin-4 (AQP4) and myelin oligodendrocyte glycoprotein (MOG) contribute to NMOSD pathology. The importance of early diagnosis between AQP4-Ab+ NMOSD, MOG-Ab+ NMOSD, AQP4-Ab− MOG-Ab− NMOSD, and related disorders cannot be overemphasized. Here, we provide a comprehensive data collection and analysis of the currently known metabolomic perturbations and related proteomic outcomes of NMOSD. We highlight short chain fatty acids, lipoproteins, amino acids, and lactate as candidate diagnostic biomarkers. Although the application of metabolomic profiling to individual NMOSD patient care shows promise, more research is needed.
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Affiliation(s)
- Maxton E. Thoman
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA;
- Laboratory of TGF-β Biology, Epigenetics, and Cytokine Regulation, Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Susan C. McKarns
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA;
- Laboratory of TGF-β Biology, Epigenetics, and Cytokine Regulation, Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
- Department of Microbiology and Immunology, University of Missouri School of Medicine, Columbia, MO 65212, USA
- Correspondence:
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12
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Swanberg KM, Landheer K, Pitt D, Juchem C. Quantifying the Metabolic Signature of Multiple Sclerosis by in vivo Proton Magnetic Resonance Spectroscopy: Current Challenges and Future Outlook in the Translation From Proton Signal to Diagnostic Biomarker. Front Neurol 2019; 10:1173. [PMID: 31803127 PMCID: PMC6876616 DOI: 10.3389/fneur.2019.01173] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/21/2019] [Indexed: 01/03/2023] Open
Abstract
Proton magnetic resonance spectroscopy (1H-MRS) offers a growing variety of methods for querying potential diagnostic biomarkers of multiple sclerosis in living central nervous system tissue. For the past three decades, 1H-MRS has enabled the acquisition of a rich dataset suggestive of numerous metabolic alterations in lesions, normal-appearing white matter, gray matter, and spinal cord of individuals with multiple sclerosis, but this body of information is not free of seeming internal contradiction. The use of 1H-MRS signals as diagnostic biomarkers depends on reproducible and generalizable sensitivity and specificity to disease state that can be confounded by a multitude of influences, including experiment group classification and demographics; acquisition sequence; spectral quality and quantifiability; the contribution of macromolecules and lipids to the spectroscopic baseline; spectral quantification pipeline; voxel tissue and lesion composition; T1 and T2 relaxation; B1 field characteristics; and other features of study design, spectral acquisition and processing, and metabolite quantification about which the experimenter may possess imperfect or incomplete information. The direct comparison of 1H-MRS data from individuals with and without multiple sclerosis poses a special challenge in this regard, as several lines of evidence suggest that experimental cohorts may differ significantly in some of these parameters. We review the existing findings of in vivo1H-MRS on central nervous system metabolic abnormalities in multiple sclerosis and its subtypes within the context of study design, spectral acquisition and processing, and metabolite quantification and offer an outlook on technical considerations, including the growing use of machine learning, by future investigations into diagnostic biomarkers of multiple sclerosis measurable by 1H-MRS.
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Affiliation(s)
- Kelley M Swanberg
- Department of Biomedical Engineering, Columbia University Fu Foundation School of Engineering and Applied Science, New York, NY, United States
| | - Karl Landheer
- Department of Biomedical Engineering, Columbia University Fu Foundation School of Engineering and Applied Science, New York, NY, United States
| | - David Pitt
- Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| | - Christoph Juchem
- Department of Biomedical Engineering, Columbia University Fu Foundation School of Engineering and Applied Science, New York, NY, United States.,Department of Radiology, Columbia University College of Physicians and Surgeons, New York, NY, United States
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13
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Choi WT, Tosun M, Jeong HH, Karakas C, Semerci F, Liu Z, Maletić-Savatić M. Metabolomics of mammalian brain reveals regional differences. BMC SYSTEMS BIOLOGY 2018; 12:127. [PMID: 30577853 PMCID: PMC6302375 DOI: 10.1186/s12918-018-0644-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background The mammalian brain is organized into regions with specific biological functions and properties. These regions have distinct transcriptomes, but little is known whether they may also differ in their metabolome. The metabolome, a collection of small molecules or metabolites, is at the intersection of the genetic background of a given cell or tissue and the environmental influences that affect it. Thus, the metabolome directly reflects information about the physiologic state of a biological system under a particular condition. The objective of this study was to investigate whether various brain regions have diverse metabolome profiles, similarly to their genetic diversity. The answer to this question would suggest that not only the genome but also the metabolome may contribute to the functional diversity of brain regions. Methods We investigated the metabolome of four regions of the mouse brain that have very distinct functions: frontal cortex, hippocampus, cerebellum, and olfactory bulb. We utilized gas- and liquid- chromatography mass spectrometry platforms and identified 215 metabolites. Results Principal component analysis, an unsupervised multivariate analysis, clustered each brain region based on its metabolome content, thus providing the unique metabolic profile of each region. A pathway-centric analysis indicated that olfactory bulb and cerebellum had most distinct metabolic profiles, while the cortical parenchyma and hippocampus were more similar in their metabolome content. Among the notable differences were distinct oxidative-anti-oxidative status and region-specific lipid profiles. Finally, a global metabolic connectivity analysis using the weighted correlation network analysis identified five hub metabolites that organized a unique metabolic network architecture within each examined brain region. These data indicate the diversity of global metabolome corresponding to specialized regional brain function and provide a new perspective on the underlying properties of brain regions. Conclusion In summary, we observed many differences in the metabolome among the various brain regions investigated. All four brain regions in our study had a unique metabolic signature, but the metabolites came from all categories and were not pathway-centric. Electronic supplementary material The online version of this article (10.1186/s12918-018-0644-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- William T Choi
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA.,The National Library of Medicine Training Program in Biomedical Informatics, Houston, TX, USA.,Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, USA.,Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA
| | - Mehmet Tosun
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA.,Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA
| | - Hyun-Hwan Jeong
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Cemal Karakas
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA.,Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA
| | - Fatih Semerci
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA.,Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA
| | - Zhandong Liu
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA. .,Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA. .,Quantitative Computational Biology Program, Baylor College of Medicine, Houston, TX, USA.
| | - Mirjana Maletić-Savatić
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA. .,Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA. .,Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA. .,Quantitative Computational Biology Program, Baylor College of Medicine, Houston, TX, USA. .,Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA.
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14
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Rzagalinski I, Hainz N, Meier C, Tschernig T, Volmer DA. Spatial and molecular changes of mouse brain metabolism in response to immunomodulatory treatment with teriflunomide as visualized by MALDI-MSI. Anal Bioanal Chem 2018; 411:353-365. [PMID: 30417265 DOI: 10.1007/s00216-018-1444-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/05/2018] [Accepted: 10/22/2018] [Indexed: 12/30/2022]
Abstract
Multiple sclerosis (MS) is an immune-mediated neurodegenerative disease of the central nervous system (CNS). One of the most promising recent medications for MS is teriflunomide. Its primary mechanism of action is linked to effects on the peripheral immune system by inhibiting dihydroorotate dehydrogenase (DHODH)-catalyzed de novo pyrimidine synthesis and reducing the expansion of lymphocytes in the peripheral immune system. Some in vitro studies suggested, however, that it can also have a direct effect on the CNS compartment. This potential alternative mode of action depends on the drug's capacity to traverse the blood-brain barrier (BBB) and to exert an effect on the complex network of brain biochemical pathways. In this paper, we demonstrate the application of high-resolution/high-accuracy matrix-assisted laser desorption/ionization Fourier-transform ion cyclotron resonance mass spectrometry for molecular imaging of the mouse brain coronal sections from animals treated with teriflunomide. Specifically, in order to assess the effect of teriflunomide on the mouse CNS compartment, we investigated the feasibility of teriflunomide to traverse the BBB. Secondly, we systematically evaluated the spatial and semi-quantitative brain metabolic profiles of 24 different endogenous compounds after 4-day teriflunomide administration. Even though the drug was not detected in the examined cerebral sections (despite the high detection sensitivity of the developed method), in-depth study of the endogenous metabolic compartment revealed noticeable alterations as a result of teriflunomide administration compared to the control animals. The observed differences, particularly for purine and pyrimidine nucleotides as well as for glutathione and carbohydrate metabolism intermediates, shed some light on the potential impact of teriflunomide on the mouse brain metabolic networks. Graphical Abstract.
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Affiliation(s)
- Ignacy Rzagalinski
- Institute of Bioanalytical Chemistry, Saarland University, 66123, Saarbrücken, Germany
| | - Nadine Hainz
- Institute of Anatomy and Cell Biology, Saarland University, 66421, Homburg, Germany
| | - Carola Meier
- Institute of Anatomy and Cell Biology, Saarland University, 66421, Homburg, Germany
| | - Thomas Tschernig
- Institute of Anatomy and Cell Biology, Saarland University, 66421, Homburg, Germany
| | - Dietrich A Volmer
- Department of Chemistry, Humboldt University of Berlin, 12489, Berlin, Germany.
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15
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Wang R, Fan Q, Zhang Z, Chen Y, Zhu Y, Li Y. Anterior thalamic radiation structural and metabolic changes in obsessive-compulsive disorder: A combined DTI-MRS study. Psychiatry Res Neuroimaging 2018; 277:39-44. [PMID: 29807209 DOI: 10.1016/j.pscychresns.2018.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/13/2018] [Accepted: 05/11/2018] [Indexed: 12/11/2022]
Abstract
Numerous studies indicate the cortico-striato-thalamo-cortical (CSTC) circuit plays an important role in the pathophysiology of obsessive-compulsive disorder (OCD). The anterior thalamic radiation (ATR), as a major fiber in the fronto-thalamic circuitry, contributes to symptomology of OCD. However, the underlying biochemical mechanism in relation with its structural alteration remains not understood. This study investigated the structural abnormality of ATR and its correlation with thalamic metabolic alteration in OCD, using diffusion tensor image (DTI) and proton magnetic resonance spectroscopy (1H-MRS). Twenty-six unmedicated adult OCD patients and twenty-six matched healthy controls participated in DTI study. Thirteen OCD patients and thirteen healthy controls, a subset of DTI participants, took part in MRS study. The results showed that mean fiber length of right ATR negatively correlated with ipsilateral thalamic choline (Cho) level in OCD patients. Additionally, significantly higher Cho concentration was detected in right thalamus of OCD patients compared to healthy controls. Moreover, the mean fractional anisotropy (FA) value of right ATR positively correlated with patients Yale-Brown Obsessive Compulsive Scale (YBOCS) total score, as well as YBOCS compulsion score. These results suggested the coupling of structural and metabolic changes in right ATR, which might serve as a multi-modal biomarker contributing to the pathogenesis of OCD.
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Affiliation(s)
- Ruilin Wang
- Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Qing Fan
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030,China.
| | - Zongfeng Zhang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030,China
| | - Yongjun Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030,China
| | - Yajing Zhu
- Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yao Li
- Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
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16
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Metabolomics approaches in experimental allergic encephalomyelitis. J Neuroimmunol 2017; 314:94-100. [PMID: 29224959 DOI: 10.1016/j.jneuroim.2017.11.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/30/2017] [Accepted: 11/30/2017] [Indexed: 01/08/2023]
Abstract
A myelin basic protein (MBP)-induced experimental allergic encephalomyelitis (EAE) involves paraplegia due to a reversible thoracolumbar spinal cord impairment. The aims of this study were thus to find significant metabolic biomarkers of inflammation and identify the site of inflammation in the central nervous system (CNS) during the acute signs in of the disease using metabolomics. All the EAE samples were associated with higher levels of lactate, ascorbate, glucose and amino acids, and decreased level of N-acetyl-aspartate (NAA) compared to the control group. A decreased NAA level has been particularly shown in lumbar spinal cord in relationship with the clinical signs.
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17
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Donadieu M, Le Fur Y, Maarouf A, Gherib S, Ridley B, Pini L, Rapacchi S, Confort-Gouny S, Guye M, Schad LR, Maudsley AA, Pelletier J, Audoin B, Zaaraoui W, Ranjeva JP. Metabolic counterparts of sodium accumulation in multiple sclerosis: A whole brain 23Na-MRI and fast 1H-MRSI study. Mult Scler 2017; 25:39-47. [DOI: 10.1177/1352458517736146] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background: Increase of brain total sodium concentrations (TSC) is present in multiple sclerosis (MS), but its pathological involvement has not been assessed yet. Objective: To determine in vivo the metabolic counterpart of brain sodium accumulation. Materials/methods: Whole brain 23Na-MR imaging and 3D-1H-EPSI data were collected in 21 relapsing-remitting multiple sclerosis (RRMS) patients and 20 volunteers. Metabolites and sodium levels were extracted from several regions of grey matter (GM), normal-appearing white matter (NAWM) and white matter (WM) T2 lesions. Metabolic and ionic levels expressed as Z-scores have been averaged over the different compartments and used to explain sodium accumulations through stepwise regression models. Results: MS patients showed significant 23Na accumulations with lower choline and glutamate–glutamine (Glx) levels in GM; 23Na accumulations with lower N-acetyl aspartate (NAA), Glx levels and higher Myo-Inositol (m-Ins) in NAWM; and higher 23Na, m-Ins levels with lower NAA in WM T2 lesions. Regression models showed associations of TSC increase with reduced NAA in GM, NAWM and T2 lesions, as well as higher total-creatine, and smaller decrease of m-Ins in T2 lesions. GM Glx levels were associated with clinical scores. Conclusion: Increase of TSC in RRMS is mainly related to neuronal mitochondrial dysfunction while dysfunction of neuro-glial interactions within GM is linked to clinical scores.
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Affiliation(s)
- Maxime Donadieu
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France/Siemens Healthineers, Saint-Denis, France
| | - Yann Le Fur
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Adil Maarouf
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France/APHM, Timone University Hospital, Department of Neurology, Marseille, FranceCNRS, CRMBM UMR 7339, Medical School of Marseille, Aix-Marseille University, Marseille, France/AP-HM, CHU Timone, Department of Imaging, CEMEREM, Marseille, France/AP-HM, CHU Timone, Pole de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Soraya Gherib
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Ben Ridley
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Lauriane Pini
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Stanislas Rapacchi
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Sylviane Confort-Gouny
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Maxime Guye
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Lothar R Schad
- Computer Assisted Clinical Medicine, Mannheim University Hospital, Heidelberg University, Mannheim, Germany
| | - Andrew A Maudsley
- Department of Radiology, University of Miami School of Medicine, Miami, FL, USA
| | - Jean Pelletier
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France/APHM, Timone University Hospital, Department of Neurology, Marseille, FranceCNRS, CRMBM UMR 7339, Medical School of Marseille, Aix-Marseille University, Marseille, France/AP-HM, CHU Timone, Department of Imaging, CEMEREM, Marseille, France/AP-HM, CHU Timone, Pole de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Bertrand Audoin
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France/APHM, Timone University Hospital, Department of Neurology, Marseille, FranceCNRS, CRMBM UMR 7339, Medical School of Marseille, Aix-Marseille University, Marseille, France/AP-HM, CHU Timone, Department of Imaging, CEMEREM, Marseille, France/AP-HM, CHU Timone, Pole de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Wafaa Zaaraoui
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
| | - Jean-Philippe Ranjeva
- Aix-Marseille University, CNRS, CRMBM, APHM, Marseille, France/Timone University Hospital, CEMEREM, Marseille, France
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18
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Kim HH, Jeong IH, Hyun JS, Kong BS, Kim HJ, Park SJ. Metabolomic profiling of CSF in multiple sclerosis and neuromyelitis optica spectrum disorder by nuclear magnetic resonance. PLoS One 2017; 12:e0181758. [PMID: 28746356 PMCID: PMC5528902 DOI: 10.1371/journal.pone.0181758] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/06/2017] [Indexed: 11/19/2022] Open
Abstract
Multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) are inflammatory diseases of the central nervous system. Although several studies have characterized the metabolome in the cerebrospinal fluid (CSF) from MS and NMOSD patients, comparative analyses between them and between the relapse and the remission of each disease have not been performed. Both univariate and multivariate analyses were used to compare 1H-NMR spectra of CSF from MS, NMOSD, and healthy controls (HCs). The statistical analysis showed alterations of eight metabolites that were dependent on the disease. Levels of 2-hydroxybutyrate, acetone, formate, and pyroglutamate were higher and levels of acetate and glucose were lower in both MS and NMOSD. Citrate was lower in MS patients, whereas lactate was higher in only NMOSD specifically. The shared feature of metabolic changes between MS and NMOSD may be related to altered energy metabolism and fatty acid biosynthesis in the brain. Another analysis to characterize relapse and remission status showed that isoleucine and valine were down-regulated in MS relapse compared to MS remission. The other metabolites identified in the disease comparison showed the same alterations regardless of disease activity. These findings would be helpful in understanding the biological background of these diseases, and distinguishing between MS and NMOSD, as well as determining the disease activity.
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Affiliation(s)
- Hyun-Hwi Kim
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
| | - In Hye Jeong
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Ja-Shil Hyun
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
| | - Byung Soo Kong
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Ho Jin Kim
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Sung Jean Park
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
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19
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Villoslada P, Alonso C, Agirrezabal I, Kotelnikova E, Zubizarreta I, Pulido-Valdeolivas I, Saiz A, Comabella M, Montalban X, Villar L, Alvarez-Cermeño JC, Fernández O, Alvarez-Lafuente R, Arroyo R, Castro A. Metabolomic signatures associated with disease severity in multiple sclerosis. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2017; 4:e321. [PMID: 28180139 PMCID: PMC5278923 DOI: 10.1212/nxi.0000000000000321] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 12/19/2016] [Indexed: 12/20/2022]
Abstract
Objective: To identify differences in the metabolomic profile in the serum of patients with multiple sclerosis (MS) compared to controls and to identify biomarkers of disease severity. Methods: We studied 2 cohorts of patients with MS: a retrospective longitudinal cohort of 238 patients and 74 controls and a prospective cohort of 61 patients and 41 controls with serial serum samples. Patients were stratified into active or stable disease based on 2 years of prospective assessment accounting for presence of clinical relapses or changes in disability measured with the Expanded Disability Status Scale (EDSS). Metabolomic profiling (lipids and amino acids) was performed by ultra-high-performance liquid chromatography coupled to mass spectrometry in serum samples. Data analysis was performed using parametric methods, principal component analysis, and partial least square discriminant analysis for assessing the differences between cases and controls and for subgroups based on disease severity. Results: We identified metabolomics signatures with high accuracy for classifying patients vs controls as well as for classifying patients with medium to high disability (EDSS >3.0). Among them, sphingomyelin and lysophosphatidylethanolamine were the metabolites that showed a more robust pattern in the time series analysis for discriminating between patients and controls. Moreover, levels of hydrocortisone, glutamic acid, tryptophan, eicosapentaenoic acid, 13S-hydroxyoctadecadienoic acid, lysophosphatidylcholines, and lysophosphatidylethanolamines were associated with more severe disease (non-relapse-free or increase in EDSS). Conclusions: We identified metabolomic signatures composed of hormones, lipids, and amino acids associated with MS and with a more severe course.
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Affiliation(s)
- Pablo Villoslada
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Cristina Alonso
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Ion Agirrezabal
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Ekaterina Kotelnikova
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Irati Zubizarreta
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Irene Pulido-Valdeolivas
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Albert Saiz
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Manuel Comabella
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Xavier Montalban
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Luisa Villar
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Jose Carlos Alvarez-Cermeño
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Oscar Fernández
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Roberto Alvarez-Lafuente
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Rafael Arroyo
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
| | - Azucena Castro
- Center of Neuroimmunology (P.V., I.A., E.K., I.Z., I.P.-V., A.S.), Institute d'Investigaciones Biomediques August Pi Sunyer (IDIBAPS)-Hospital Clinic, Barcelona, Spain; University of California (P.V.), San Francisco; OWL (C.A., A.C.), Parque Tecnológico de Bizkaia, Derio; Cemcat (M.C., X.M.), Hospital Vall d'Hebron, Barcelona; Hospital Ramon y Cajal (L.V., J.C.A.-C.), Madrid; Hospital Universitario Regional (O.F.), Instituto de Investigación Biomédica (IBIMA), Malaga; and Hospital Clinico San Carlos (R.A.-L., R.A.), Madrid, Spain
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Purroy F, Cambray S, Mauri-Capdevila G, Jové M, Sanahuja J, Farré J, Benabdelhak I, Molina-Seguin J, Colàs-Campàs L, Begue R, Gil MI, Pamplona R, Portero-Otín M. Metabolomics Predicts Neuroimaging Characteristics of Transient Ischemic Attack Patients. EBioMedicine 2016; 14:131-138. [PMID: 27843094 PMCID: PMC5161417 DOI: 10.1016/j.ebiom.2016.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/06/2016] [Accepted: 11/07/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Neuroimaging is essential for the diagnosis and prognosis of transient ischemic attack (TIA). The discovery of a plasmatic biomarker related to neuroimaging findings is of enormous interest because, despite its relevance, magnetic resonance diffusion weighted imaging (DWI) is not always available in all hospitals that attend to TIA patients. METHODS Metabolomic analyses were performed by liquid chromatography coupled to mass spectrometry in order to establish the metabolomic patterns of positive DWI, DWI patterns and acute ischemic lesion volumes. We used these methods with an initial TIA cohort of 129 patients and validated them with a 2nd independent cohort of 152 patients. FINDINGS Positive DWI was observed in 115 (40.9%) subjects and scattered pearls in one arterial territory was the most frequent lesion pattern (35.7%). The median acute ischemic lesion volume was 0.33 (0.15-1.90)cm3. We detected a specific metabolomic profile common to both cohorts for positive DWI (11 molecules including creatinine, threoninyl-threonine, N-acetyl-glucosamine, lyso phosphatidic acid and cholesterol-related molecules) and ischemic lesion volume (10 molecules including lysophosphatidylcholine, hypoxanthine/threonate, and leucines). Moreover lysophospholipids and creatinine clearly differed the subcortical DWI pattern from other patterns. INTERPRETATION There are specific metabolomic profiles associated with representative neuroimaging features in TIA patients. Our findings could allow the development of serum biomarkers related to acute ischemic lesions and specific acute ischemic patterns.
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Affiliation(s)
- Francisco Purroy
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain.
| | - Serafi Cambray
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Gerard Mauri-Capdevila
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Mariona Jové
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
| | - Jordi Sanahuja
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Joan Farré
- Laboratori Clinic, Universitari Arnau de Vilanova de Lleida, Clinical Neurosciences Group IRBLleida, Spain
| | - Ikram Benabdelhak
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Jessica Molina-Seguin
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Laura Colàs-Campàs
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Robert Begue
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - M Isabel Gil
- Stroke Unit, Department of Neurology, Universitat de Lleida, Hospital Universitari Arnau de Vilanova de Leida, Clinical Neurosciences Group IRBLleida, Spain
| | - Reinald Pamplona
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
| | - Manuel Portero-Otín
- NUTREN-Nutrigenomics Center, Department of Experimental Medicine, Parc Científic i Tecnològic Agroalimentari de Lleida-Universitat de Lleida-IRBLLEIDA, Lleida, Spain
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Donadieu M, Le Fur Y, Lecocq A, Maudsley AA, Gherib S, Soulier E, Confort-Gouny S, Pariollaud F, Ranjeva MP, Pelletier J, Guye M, Zaaraoui W, Audoin B, Ranjeva JP. Metabolic voxel-based analysis of the complete human brain using fast 3D-MRSI: Proof of concept in multiple sclerosis. J Magn Reson Imaging 2016; 44:411-9. [PMID: 26756662 DOI: 10.1002/jmri.25139] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/08/2015] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To detect local metabolic abnormalities over the complete human brain in multiple sclerosis (MS) patients, we used optimized fast volumic echo planar spectroscopic imaging (3D-EPSI). MATERIALS AND METHODS Weighted mean combination of two 3D-EPSI covering the whole brain acquired at 3T in AC-PC and AC-PC+15° axial planes was performed to obtain high-quality metabolite maps for five metabolites: N-acetyl aspartate (NAA), glutamate+glutamine (Glx), choline (Cho), myo-inositol (m-Ins), and creatine+phosphocreatine (tCr). After spatial normalization, maps from 19 patients suffering from relapsing-remitting MS were compared to 19 matched controls using statistical mapping analyses to determine the topography of metabolic abnormalities. Probabilistic white matter (WM) T2 lesion maps and gray matter (GM) atrophy maps were also generated. RESULTS Two-group analysis of variance (ANOVA) (SPM8, P < 0.005, false discovery rate [FDR]-corrected P < 0.05 at the cluster level with age and sex as confounding covariates) comparing patients and controls matched for age and sex showed clusters of abnormal metabolite levels with 1) decreased NAA (around -15%) and Glx (around 20%) predominantly in GM within prefrontal cortices, motor cortices, bilateral thalami, and mesial temporal cortices in line with neuronal/neuro-astrocytic dysfunction; 2) increased m-Ins (around + 20%) inside WM T2 lesions and in the normal-appearing WM of temporal-occipital lobes, suggesting glial activation. CONCLUSION We demonstrate the ability to noninvasively map over the complete brain-from vertex to cerebellum-with a validated sequence, the metabolic abnormalities associated with MS, for characterizing the topography of pathological processes affecting widespread areas of WM and GM and its functional impact. J. Magn. Reson. Imaging 2016;44:411-419.
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Affiliation(s)
- Maxime Donadieu
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Yann Le Fur
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Angèle Lecocq
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Andrew A Maudsley
- Miller School of Medicine, University of Miami, Department of Radiology, Miami, Florida, USA
| | - Soraya Gherib
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France.,AP-HM, CHU Timone, Pôle de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Elisabeth Soulier
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Sylviane Confort-Gouny
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Fanelly Pariollaud
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France.,AP-HM, CHU Timone, Pôle de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Marie-Pierre Ranjeva
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France.,AP-HM, CHU Timone, Pôle de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Jean Pelletier
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Maxime Guye
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Wafaa Zaaraoui
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle d'Imagerie, CEMEREM, Marseille, France
| | - Bertrand Audoin
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France.,AP-HM, CHU Timone, Pôle de Neurosciences Cliniques, Department of Neurology, Marseille, France
| | - Jean-Philippe Ranjeva
- Aix Marseille Université, CNRS, CRMBM UMR 7339, Medical School of Marseille, Marseille, France
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Decreased thalamic glutamate level in unmedicated adult obsessive-compulsive disorder patients detected by proton magnetic resonance spectroscopy. J Affect Disord 2015; 178:193-200. [PMID: 25819113 DOI: 10.1016/j.jad.2015.03.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 03/05/2015] [Accepted: 03/05/2015] [Indexed: 01/21/2023]
Abstract
BACKGROUND Previous neuroimaging studies implied that the dysfunction of cortico-striato-thalamo-cortical (CSTC) circuit served as the neural basis for the pathophysiology of obsessive-compulsive disorder (OCD). The imbalances in neuronal metabolite and neurotransmitter within CSTC circuit have been shown as the leading reasons of the OCD onset. The aim of this study is to investigate the metabolic alterations, especially the glutamatergic signal dysfunction within CSTC circuit, and the relationships between neural metabolites and the symptom severity of OCD patients. METHODS Single voxel magnetic resonance spectroscopy (MRS) was conducted in medial prefrontal cortex (mPFC) and bilateral thalamus areas for thirteen unmedicated adult OCD patients with age-, gender-, and education-matched healthy controls. Quantification and multivariate analysis were performed to identify vital metabolic biomarkers for patients and healthy controls group differentiation. Moreover, we performed Spearman׳s rank correlation analysis for OCD patients to examine the relationship between the metabolite concentration level and OCD symptomatology. RESULTS Patients with OCD showed significantly decreased glutamate level in mPFC (p=0.021) and right thalamus (p=0.039), and significantly increased choline compounds in left thalamus (p=0.044).The glutamate in right thalamus was shown as the most important metabolite for group separation from multivariate analysis (Q(2)=0.134) and was significantly correlated with the patients׳ compulsion scores (Spearman r=-0.674, p=0.016). LIMITATIONS Limited sample size, the use of creatine and phosphocreatine (Cr) ratios rather than absolute concentrations and unresolved glutamine (Gln) are limitations of the present study. CONCLUSION Our study results consolidated the hypothesis about glutamatergic signaling dysfunction in OCD. To our knowledge, it is the first finding about a reduced thalamic glutamate level in adult unmedicated OCD patients. The dysregulation of glutamate serves as a potential target for the OCD pharmacotherapy and the detailed mechanisms underlying the glutamate alterations within CSTC circuits merit further investigations.
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Arnold JM, Choi WT, Sreekumar A, Maletić-Savatić M. Analytical strategies for studying stem cell metabolism. ACTA ACUST UNITED AC 2015. [PMID: 26213533 DOI: 10.1007/s11515-015-1357-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Owing to their capacity for self-renewal and pluripotency, stem cells possess untold potential for revolutionizing the field of regenerative medicine through the development of novel therapeutic strategies for treating cancer, diabetes, cardiovascular and neurodegenerative diseases. Central to developing these strategies is improving our understanding of biological mechanisms responsible for governing stem cell fate and self-renewal. Increasing attention is being given to the significance of metabolism, through the production of energy and generation of small molecules, as a critical regulator of stem cell functioning. Rapid advances in the field of metabolomics now allow for in-depth profiling of stem cells both in vitro and in vivo, providing a systems perspective on key metabolic and molecular pathways which influence stem cell biology. Understanding the analytical platforms and techniques that are currently used to study stem cell metabolomics, as well as how new insights can be derived from this knowledge, will accelerate new research in the field and improve future efforts to expand our understanding of the interplay between metabolism and stem cell biology.
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Affiliation(s)
- James M Arnold
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - William T Choi
- Program in Developmental Biology and Medical Scientist Training Program, Baylor College of Medicine; Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA
| | - Arun Sreekumar
- Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Mirjana Maletić-Savatić
- Program in Developmental Biology and Medical Scientist Training Program, Baylor College of Medicine; Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA ; Departments of Pediatrics-Neurology and Neuroscience, and Program in Structural and Computational Biology and Molecular Biophysics Baylor College of Medicine, Houston, TX 77030, USA
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Application of metabolomics in autoimmune diseases: Insight into biomarkers and pathology. J Neuroimmunol 2015; 279:25-32. [DOI: 10.1016/j.jneuroim.2015.01.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 10/09/2014] [Accepted: 01/05/2015] [Indexed: 12/31/2022]
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25
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Botas A, Campbell HM, Han X, Maletic-Savatic M. Metabolomics of Neurodegenerative Diseases. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2015; 122:53-80. [DOI: 10.1016/bs.irn.2015.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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