Evrensel, Alper, Ceylan, Mehmet Emin · Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2016 · DOI
This review examines fecal microbiota transplantation (FMT)—a treatment where healthy gut bacteria from a donor are transferred to a patient—and its potential use in treating brain and mental health conditions. While FMT is already proven effective for certain gut infections and inflammatory bowel diseases, researchers are exploring whether it might help with conditions like ME/CFS, autism, and Parkinson's disease. Early results are promising, but much more research is needed to understand if it's safe and effective long-term.
This review is relevant to ME/CFS because it identifies ME/CFS among conditions showing promising case report data for FMT and highlights the gut-brain axis as a potential mechanistic target. For ME/CFS patients and researchers exploring biomedical mechanisms, this review underscores growing interest in microbiota-based interventions and the need for rigorous clinical trials to test whether FMT could address proposed dysbiotic mechanisms in the disease.
This review does not establish efficacy of FMT for ME/CFS or any neuropsychiatric disorder—it only catalogs case reports and early-stage evidence. It does not demonstrate that dysbiosis causes ME/CFS symptoms, nor does it prove FMT would be safe or effective as a treatment. The review explicitly notes that long-term risks are unknown and standard protocols are not established, so conclusions about clinical utility cannot yet be drawn.
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
Evrensel, Alper & Ceylan, Mehmet Emin (2016). Fecal Microbiota Transplantation and Its Usage in Neuropsychiatric Disorders.. Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology. https://doi.org/10.9758/cpn.2016.14.3.231
BibTeX
@article{mecfsatlas-evrensel-2016-fecal-microbiota,
author = {Evrensel, Alper and Ceylan, Mehmet Emin},
title = {Fecal Microbiota Transplantation and Its Usage in Neuropsychiatric Disorders.},
journal = {Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology},
year = {2016},
doi = {10.9758/cpn.2016.14.3.231},
note = {PubMed: 27489376},
url = {https://www.mecfsatlas.com/evidence/evrensel-2016-fecal-microbiota},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-30. https://www.mecfsatlas.com/evidence/evrensel-2016-fecal-microbiota
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