De Luca, Chiara, Raskovic, Desanka, Pacifico, Valeria et al. · International journal of environmental research and public health · 2011 · DOI
This review examines why some people develop severe reactions to chemicals, foods, and environmental exposures at levels that shouldn't cause harm. The authors argue these conditions—including ME/CFS, fibromyalgia, and multiple chemical sensitivity—are real biological disorders, not just psychological problems. They explore evidence that problems with how the body detoxifies and handles harmful substances, along with imbalances in antioxidant protection, may be key to understanding these diseases.
This work is significant because it challenges the dismissal of ME/CFS and related conditions as psychogenic or 'medically unexplained,' providing a framework for understanding shared biological mechanisms across these disorders. Identifying reliable biomarkers—particularly those related to oxidative stress and detoxification capacity—could enable objective diagnosis and personalized treatment strategies, potentially improving medical recognition and access to care for affected patients.
This review does not establish that genetic polymorphisms are the primary cause of these conditions—the authors note that gene polymorphism studies have been 'statistically inconclusive.' It also does not provide clinical trial data proving that specific treatments targeting detoxification pathways are effective. The mechanistic proposals remain largely exploratory and require validation through controlled prospective 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 →
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