Anisman, H, Baines, M G, Berczi, I et al. · CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 1996
When your body fights an infection, your immune system releases chemical messengers called cytokines that trigger fatigue, fever, loss of appetite, and inactivity—changes controlled partly by your brain and nervous system. This review explains how problems in the communication between your immune system and brain (particularly an area called the hypothalamus-pituitary-adrenal axis) may contribute to chronic conditions including ME/CFS, fibromyalgia, and autoimmune diseases. Understanding these connections could lead to new treatments using hormones and other brain-signaling molecules.
This early comprehensive review directly addresses neuroimmune dysfunction in ME/CFS and proposes that HPA axis defects and altered hormone signaling are central mechanisms—a framework that has guided decades of subsequent ME/CFS research. For patients, it explains why brain-immune communication problems might cause both the fatigue during illness and chronic symptoms, and it suggests specific biological targets (hormones, neurotransmitters) for future treatments.
This is a narrative review of existing literature, not original research, so it does not provide new experimental data or patient cohorts demonstrating causation. The authors do not prove that neuroimmune dysfunction *causes* ME/CFS—they describe associations and propose mechanisms that require testing. The review predates modern biomarker validation and does not establish which neuroimmune defects are primary versus secondary effects of chronic illness.
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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