Rybakina, E G, Shanin, S N, Fomicheva, E E et al. · Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova · 2009
This study used laboratory rats to understand how ME/CFS might develop by triggering an immune response with a synthetic molecule. Researchers found that during this fatigue-like state, immune cells became less active, brain cell communication pathways were dampened, and the body's stress-response system (which normally helps us cope) became less effective. These findings suggest ME/CFS involves problems in how the immune system and brain communicate with each other.
This study provides experimental evidence that ME/CFS involves specific breakdowns in communication between the immune and neuroendocrine systems—a leading hypothesis in the field. By identifying molecular-level changes (like sphingomyelinase suppression) and HPA axis dysfunction, it offers potential biomarkers and therapeutic targets that researchers could explore in human patients.
This animal model study does not prove that Poly I:C-induced fatigue in rats is identical to human ME/CFS or that the same mechanisms cause ME/CFS in patients. The findings are correlational and mechanistic; they do not establish causation in living humans or rule out other contributing factors to ME/CFS development.
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
Rybakina, E G, Shanin, S N, Fomicheva, E E, & Korneva, E A (2009). [Cellular and molecular mechanisms of interaction between the neuroendocrine and immune systems under chronic fatigue syndrome in experiment].. Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. https://pubmed.ncbi.nlm.nih.gov/20141043/
BibTeX
@article{mecfsatlas-rybakina-2009-cellular-molecular,
author = {Rybakina, E G and Shanin, S N and Fomicheva, E E and Korneva, E A},
title = {[Cellular and molecular mechanisms of interaction between the neuroendocrine and immune systems under chronic fatigue syndrome in experiment].},
journal = {Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova},
year = {2009},
note = {PubMed: 20141043},
url = {https://www.mecfsatlas.com/evidence/rybakina-2009-cellular-molecular},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/rybakina-2009-cellular-molecular
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