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Jul 23, 2026

Separated moxibustion in rheumatoid arthritis: clinical efficacy and gut microbiota modulation

Adding separated moxibustion to conventional drug therapy was associated with improvements in RA clinical scores and negative emotions, alongside changes in gut microbiota composition.

Evidence levelBRandomized clinical trial
Study typerct
Sample70
Effect directionFavorable
CertaintyModerate
Clinical applicabilityModerate
Overinterpretation risk1/5 · Low
PICO
Population
Intervention
Comparator
Outcome

What the study showed

The abstract reports that the moxibustion group showed improvements in DAS28, VAS, morning stiffness, gastrointestinal symptoms, anxiety, and depression scores compared to controls. Differences in gut microbiota composition (16S rRNA sequencing) and inflammatory markers such as LPS and LBP were observed. The proposed mechanism involves modulation of the gut-joint axis through microbial changes.

How it was done

Randomized clinical trial with 70 RA patients divided into a control group (conventional medication) and an observation group (medication plus moxibustion at ST36, BL23, and Ashi points), 3 sessions per week for 5 weeks. A healthy reference group (n=30) was included for microbiota comparison.

Risk of bias

Effective sample size is small (~60 patients) with dropout in both groups. Blinding to moxibustion intervention is inherently impossible, introducing expectation bias; the abstract does not specify a pre-registered primary endpoint or power calculation.

Interpretation limit

What this study does NOT prove

This study does not prove that moxibustion modifies disease course or that gut microbiota changes are causally responsible for the observed clinical effects.

In clinical practice

Results are preliminary and insufficient to recommend moxibustion as a standard adjunct in RA management. Larger, actively controlled trials with longer follow-up are required.

Limitations

Effective sample size is small (~60 patients) with dropout in both groups. Blinding to moxibustion intervention is inherently impossible, introducing expectation bias; the abstract does not specify a pre-registered primary endpoint or power calculation.

Technical appendix

Version history

  • 1.0 · 2026-07-23 — Auto-generated under Evidence Standard v1.0

Paid access: structured summary from public metadata; consult the original study at the source.

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