Naviaux, Robert K, Naviaux, Jane C, Li, Kefeng et al. · PloS one · 2019 · DOI
Researchers studied blood samples from Gulf War veterans with chronic illness and compared them to healthy controls. They found that veterans with Gulf War illness had abnormal levels of certain fats in their blood, particularly a type called ceramides and sphingomyelins. Interestingly, while Gulf War illness and ME/CFS share some similar symptom patterns, the chemical changes in the blood are largely opposite between the two conditions.
This study provides objective metabolic evidence that ME/CFS and GWI—conditions with overlapping clinical symptoms—have distinct biochemical signatures, suggesting different underlying mechanisms. This finding challenges assumptions that similar symptoms indicate identical diseases and supports the need for disease-specific biomarkers and treatments. For ME/CFS patients specifically, it emphasizes that fatigue and related symptoms may arise from diverse biological pathways requiring tailored research approaches.
This study does not prove that lipid abnormalities cause Gulf War illness or ME/CFS; correlation does not establish causation. The findings cannot be generalized to women or non-veteran populations with GWI, nor do they definitively explain why the two conditions have opposite metabolic patterns. The study does not validate these metabolites as diagnostic markers without larger, prospective cohort studies.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Naviaux, Robert K, Naviaux, Jane C, Li, Kefeng, Wang, Lin, Monk, Jonathan M, Bright, A Taylor, et al. (2019). Metabolic features of Gulf War illness.. PloS one. https://doi.org/10.1371/journal.pone.0219531
BibTeX
@article{mecfsatlas-naviaux-2019-metabolic-features,
author = {Naviaux, Robert K and Naviaux, Jane C and Li, Kefeng and Wang, Lin and Monk, Jonathan M and Bright, A Taylor and Koslik, Hayley J and Ritchie, Janis B and Golomb, Beatrice A},
title = {Metabolic features of Gulf War illness.},
journal = {PloS one},
year = {2019},
doi = {10.1371/journal.pone.0219531},
note = {PubMed: 31348786},
url = {https://www.mecfsatlas.com/evidence/naviaux-2019-metabolic-features},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-25. https://www.mecfsatlas.com/evidence/naviaux-2019-metabolic-features
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