Famularo, Giuseppe, De Simone, Claudio, Trinchieri, Vito et al. · Annals of the New York Academy of Sciences · 2004 · DOI
This review discusses carnitine, a natural substance in the body that helps cells produce energy from fats. Carnitine levels are low in several conditions involving immune problems, including ME/CFS. The authors suggest that low carnitine may contribute to immune dysfunction and excessive inflammation, and that carnitine treatment might help restore normal immune function.
This work identifies a potential metabolic mechanism underlying immune dysregulation in ME/CFS, suggesting that carnitine deficiency may contribute to the disease pathophysiology. If carnitine metabolism is truly impaired in ME/CFS patients, this could open avenues for therapeutic intervention and metabolic testing, addressing a significant gap in understanding how cellular energy production relates to immune dysfunction.
This review does not establish causation—it identifies an association between low carnitine and immune dysfunction, but does not prove carnitine deficiency causes ME/CFS. The mechanistic evidence is drawn primarily from experimental models and other conditions; clinical efficacy of carnitine treatment specifically in ME/CFS is not demonstrated here. The review does not account for whether low carnitine is a primary defect or a secondary consequence of disease.
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
Famularo, Giuseppe, De Simone, Claudio, Trinchieri, Vito, & Mosca, Luciana (2004). Carnitines and its congeners: a metabolic pathway to the regulation of immune response and inflammation.. Annals of the New York Academy of Sciences. https://doi.org/10.1196/annals.1320.012
BibTeX
@article{mecfsatlas-famularo-2004-carnitines-congeners,
author = {Famularo, Giuseppe and De Simone, Claudio and Trinchieri, Vito and Mosca, Luciana},
title = {Carnitines and its congeners: a metabolic pathway to the regulation of immune response and inflammation.},
journal = {Annals of the New York Academy of Sciences},
year = {2004},
doi = {10.1196/annals.1320.012},
note = {PubMed: 15591010},
url = {https://www.mecfsatlas.com/evidence/famularo-2004-carnitines-congeners},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-28. https://www.mecfsatlas.com/evidence/famularo-2004-carnitines-congeners
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