Fecal Microbiota Transplantation Improves Clinical Symptoms of Fibromyalgia: An open-label, Randomized, Nonplacebo-Controlled Study, 2024, Fang et al.

forestglip · May 14, 2024

https://www.sciencedirect.com/science/article/abs/pii/S1526590024004553

Abstract

Fibromyalgia (FM) is a complex and poorly understood disorder characterized by chronic and widespread musculoskeletal pain, of which the etiology remains unknown. Now, the disorder of the gut microbiome is considered as one of the main causes of FM. This study was aimed to investigate the potential benefits of fecal microbiota transplantation (FMT) in patients with FM. A total of 45 patients completed this open-label randomized, nonplacebo-controlled clinical study. The Numerical Rating Scale (NRS) scores in the FMT group were slightly lower than the control group at 1 month (P> 0.05), and they decreased significantly at 2, 3, 6, and 12 months after treatment (P < 0.001). Besides, compared with the control group, the Widespread Pain Index (WPI), Symptom Severity (SS), Hospital Anxiety and Depression Scale (HADS) and Pittsburgh Sleep Quality Index (PSQI) scores were significantly lower in the FMT group at different time points (P < 0.001). After 6 months of treatment, there was a significant increase in serotonin (5-HT) and gamma-aminobutyric acid (GABA) levels (P < 0.001), while glutamate levels significantly decreased in the FMT group (P < 0.001). The total effective rate was higher in the FMT group (90.9%) compared to the control group (56.5%) after 6 months of treatment (P < 0.05). FMT can effectively improve the clinical symptoms of FM. With the close relations between the changes of neurotransmitters and FM, certain neurotransmitters may serve as a diagnostic marker or potential target for FM patients.
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I can't access the full study, but based off Jarred Younger's summary on Youtube, this seems promising.

45 total participants. Active group received FMT + duloxetine. Control group received only duloxetine. Primary outcome was 0-10 pain scale:

Even at 12 months when the study ended, it looks like the FMT+duloxetine group's pain was continuing to decrease below 2, while the duloxetine-only group plateaued at 1 month at about a score of 4.

Younger said the authors speculate that the duloxetine helps the FMT to have such a profound effect because of serotonin or some-such.

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Fecal Microbiota Transplantation Improves Clinical Symptoms of Fibromyalgia: An open-label, Randomized, Nonplacebo-Controlled Study, 2024, Fang et al.

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Fecal Microbiota Transplantation Improves Clinical Symptoms of Fibromyalgia: An open-label, Randomized, Nonplacebo-Controlled Study, 2024, Fang et al.

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