De Luca, C, Scordo, G, Cesareo, E et al. · Indian journal of experimental biology · 2010
Some people with ME/CFS and related conditions may have difficulty processing chemicals, metals, and other substances they encounter in the environment because of inherited or acquired differences in how their bodies handle these toxins. This review suggests that genetic variations affecting enzymes responsible for detoxifying chemicals, combined with problems in the body's antioxidant systems, might explain why some people react strongly to very small amounts of environmental exposures. Understanding these biological mechanisms could help develop personalized treatments.
This review provides a biological framework linking genetics, detoxification capacity, and chemical sensitivity in ME/CFS and related syndromes, potentially moving these conditions from 'medically unexplained' to mechanistically grounded diagnoses. If the proposed mechanisms are validated, it could enable genetic and biochemical testing to identify at-risk individuals and guide targeted antioxidant or chelation therapies.
This review does not establish causality or provide empirical evidence from original research; it synthesizes existing hypotheses rather than testing them. The proposed genetic and oxidative stress mechanisms remain theoretical and require prospective studies with biochemical validation, genetic sequencing, and clinical outcome correlation to be confirmed in ME/CFS populations.
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 →
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Primary citation
De Luca, C, Scordo, G, Cesareo, E, Raskovic, D, Genovesi, G, & Korkina, L (2010). Idiopathic environmental intolerances (IEI): from molecular epidemiology to molecular medicine.. Indian journal of experimental biology. https://pubmed.ncbi.nlm.nih.gov/20929047/
BibTeX
@article{mecfsatlas-de-luca-2010-idiopathic-environmental,
author = {De Luca, C and Scordo, G and Cesareo, E and Raskovic, D and Genovesi, G and Korkina, L},
title = {Idiopathic environmental intolerances (IEI): from molecular epidemiology to molecular medicine.},
journal = {Indian journal of experimental biology},
year = {2010},
note = {PubMed: 20929047},
url = {https://www.mecfsatlas.com/evidence/de-luca-2010-idiopathic-environmental},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-27. https://www.mecfsatlas.com/evidence/de-luca-2010-idiopathic-environmental
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