4.7 Article

Urine Metabolomics Exposes Anomalous Recovery after Maximal Exertion in Female ME/CFS Patients

Journal

Publisher

MDPI
DOI: 10.3390/ijms24043685

Keywords

ME/CFS; metabolomics; urine; exercise

Ask authors/readers for more resources

The aim of this pilot study was to investigate the changes in urine metabolome between ME/CFS patients and healthy subjects following exertion. The results showed that there were no significant changes in urine metabolome of ME/CFS patients during recovery, while significant changes were observed in healthy subjects, suggesting a lack of adaptation to severe stress in ME/CFS patients.
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating disease with unknown etiology or effective treatments. Post-exertional malaise (PEM) is a key symptom that distinguishes ME/CFS patients. Investigating changes in the urine metabolome between ME/CFS patients and healthy subjects following exertion may help us understand PEM. The aim of this pilot study was to comprehensively characterize the urine metabolomes of eight female healthy sedentary control subjects and ten female ME/CFS patients in response to a maximal cardiopulmonary exercise test (CPET). Each subject provided urine samples at baseline and 24 h post-exercise. A total of 1403 metabolites were detected via LC-MS/MS by Metabolon((R)) including amino acids, carbohydrates, lipids, nucleotides, cofactors and vitamins, xenobiotics, and unknown compounds. Using a linear mixed effects model, pathway enrichment analysis, topology analysis, and correlations between urine and plasma metabolite levels, significant differences were discovered between controls and ME/CFS patients in many lipid (steroids, acyl carnitines and acyl glycines) and amino acid subpathways (cysteine, methionine, SAM, and taurine; leucine, isoleucine, and valine; polyamine; tryptophan; and urea cycle, arginine and proline). Our most unanticipated discovery is the lack of changes in the urine metabolome of ME/CFS patients during recovery while significant changes are induced in controls after CPET, potentially demonstrating the lack of adaptation to a severe stress in ME/CFS patients.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Plant Sciences

The RanBP2 zinc finger domains of chloroplast RNA editing factor OZ1 are required for protein-protein interactions and conversion of C to U

Andrew B. Gipson, Maureen R. Hanson, Stephane Bentolila

Summary: OZ1 is a crucial protein involved in multiple RNA editing events in the chloroplast, interacting primarily with PPR proteins through its Znf domains and unique C-terminal region. Truncation assays of OZ1 revealed the necessity of its Znf domains for restoring chloroplast RNA editing in vivo, highlighting their key role in the editing process and interaction with RNA-binding factors like ORRM1. These findings contribute to a better understanding of the chloroplast plant editosome model.

PLANT JOURNAL (2022)

Article Multidisciplinary Sciences

Improving the efficiency of Rubisco by resurrecting its ancestors in the family Solanaceae

Myat T. Lin, Heidi Salihovic, Frances K. Clark, Maureen R. Hanson

Summary: We developed a computational workflow to assemble Rubisco enzyme subunits from transcriptomics data and predicted ancestral Rubiscos of the Solanaceae family. Our findings identified superior ancestral Rubiscos with improved kinetics for C-3 plants, which have the potential to help plants adapt to anthropogenic climate change. This study also advanced our understanding of the evolution of Rubisco's catalytic traits.

SCIENCE ADVANCES (2022)

Article Medicine, Research & Experimental

Plasma metabolomics reveals disrupted response and recovery following maximal exercise in myalgic encephalomyelitis/chronic fatigue syndrome

Arnaud Germain, Ludovic Giloteaux, Geoffrey E. Moore, Susan M. Levine, John K. Chia, Betsy A. Keller, Jared Stevens, Carl J. Franconi, Xiangling Mao, Dikoma C. Shungu, Andrew Grimson, Maureen R. Hanson

Summary: Post-exertional malaise (PEM) is a prominent symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). By monitoring plasma metabolites, this study found significant differences in metabolic response and recovery pattern between ME/CFS patients and healthy control participants after two maximal exercise tests. Glutamate metabolism was identified as a crucial factor in the metabolic disruptions that lead to PEM.

JCI INSIGHT (2022)

Article Cardiac & Cardiovascular Systems

Identification of Pathogenic Immune Cell Subsets Associated With Checkpoint Inhibitor-Induced Myocarditis

Han Zhu, Francisco X. Galdos, Daniel Lee, Sarah Waliany, Yuhsin Vivian Huang, Julia Ryan, Katherine Dang, Joel W. Neal, Heather A. Wakelee, Sunil A. Reddy, Sandy Srinivas, Lih-Ling Lin, Ronald M. Witteles, Holden T. Maecker, Mark M. Davis, Patricia K. Nguyen, Sean M. Wu

Summary: This study identified expanded cytotoxic CD8(+) Temra cells in the blood of patients with ICI myocarditis, which were clonally expanded and exhibited activated and cytotoxic phenotypes. These cells progressed into an exhausted phenotype after glucocorticoid treatment. The study also demonstrated the interaction between these expanded cells and innate immune cells, as well as the absence of key anti-inflammatory signals.

CIRCULATION (2022)

Article Multidisciplinary Sciences

devCellPy is a machine learning-enabled pipeline for automated annotation of complex multilayered single-cell transcriptomic data

Francisco X. Galdos, Sidra Xu, William R. Goodyer, Lauren Duan, Yuhsin Huang, Soah Lee, Han Zhu, Carissa Lee, Nicholas Wei, Daniel Lee, Sean M. Wu

Summary: devCellPy is a highly accurate and precise machine learning-enabled tool for automated prediction of cell types across complex cellular hierarchies. It has been demonstrated to be useful in constructing a murine cardiac developmental atlas and predicting cardiomyocyte subtypes in human induced pluripotent stem cells.

NATURE COMMUNICATIONS (2022)

Article Biochemistry & Molecular Biology

Altered Fatty Acid Oxidation in Lymphocyte Populations of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Jessica Maya, Sabrina M. Leddy, C. Gunnar Gottschalk, Daniel L. Peterson, Maureen R. Hanson

Summary: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a disabling multisystem illness characterized by fatigue, inflammatory symptoms, cognitive dysfunction, and post-exertional malaise. This study found that ME/CFS patients have altered fatty acid metabolism in immune cells, specifically Natural Killer cells, CD4+ T cells, and CD8+ T cells. These metabolic shifts may impact T and NK cell effector function and shed light on the mechanism of action of the illness.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2023)

Editorial Material Oncology

The Role of Single-Cell Profiling and Deep Immunophenotyping in Understanding Immune Therapy Cardiotoxicity

Yuhsin Vivian Huang, Sarah Waliany, Daniel Lee, Francisco X. Galdos, Ronald M. Witteles, Joel W. Neal, Alice C. Fan, Holden T. Maecker, Patricia K. Nguyen, Sean M. Wu, Han Zhu

JACC: CARDIOONCOLOGY (2022)

Article Medicine, Research & Experimental

Proteomics and cytokine analyses distinguish myalgic encephalomyelitis/chronic fatigue syndrome cases from controls

Ludovic Giloteaux, Jiayin Li, Mady Hornig, W. Ian Lipkin, David Ruppert, Maureen R. R. Hanson

Summary: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex disease characterized by unexplained fatigue and other symptoms. This study found increased levels of extracellular vesicles (EVs) and IL2 cytokine in plasma of ME/CFS patients. The correlations between specific proteins and clinical data suggest immune response and hemostasis dysfunctions in ME/CFS.

JOURNAL OF TRANSLATIONAL MEDICINE (2023)

Article Medicine, General & Internal

Recovery from Exercise in Persons with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS)

Geoffrey E. Moore, Betsy A. Keller, Jared Stevens, Xiangling Mao, Staci R. Stevens, John K. Chia, Susan M. Levine, Carl J. Franconi, Maureen R. Hanson

Summary: This study aimed to quantify the duration of post-exertional malaise (PEM) symptoms. Using the Symptom Severity Scale (SSS), the severity and duration of PEM symptoms in ME/CFS patients and healthy controls were assessed. The results showed a significantly prolonged recovery time in ME/CFS patients, with an average of about two weeks, compared to only two days in the control group. These data provide valuable insights for understanding and managing exercise-induced symptoms in ME/CFS patients.

MEDICINA-LITHUANIA (2023)

Article Biochemistry & Molecular Biology

Survey of Anti-Pathogen Antibody Levels in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Adam J. O'Neal, Katherine A. Glass, Christopher J. Emig, Adela A. Vitug, Steven J. Henry, Dikoma C. Shungu, Xiangling Mao, Susan M. Levine, Maureen R. Hanson

Summary: This study investigates the presence of an infectious trigger and immune dysregulation in patients with chronic fatigue syndrome. Although the specific pathogen cannot be identified, the results reveal sex-based differences in steady-state humoral immunity in both patients and healthy controls.

PROTEOMES (2022)

No Data Available