[Effect of warming needle moxibustion on mitochondrial autophagy in rats with chronic fatigue syndrome based on AMPK/ULK1 signaling pathway]. — CFSMEATLAS
E3 PreliminaryPreliminaryPEM not requiredMechanisticPeer-reviewedMachine draft
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[Effect of warming needle moxibustion on mitochondrial autophagy in rats with chronic fatigue syndrome based on AMPK/ULK1 signaling pathway].
Yuan, Yi-Na, Liu, Di, Liu, Jun-Wei et al. · Zhen ci yan jiu = Acupuncture research · 2026 · DOI
Quick Summary
This study tested whether a traditional acupuncture technique called warming needle moxibustion could help rats with chronic fatigue syndrome by improving how their muscle cells produce energy. Researchers found that the treatment improved the rats' activity levels and physical strength, and appeared to work by activating cellular pathways that help damaged mitochondria (the cell's energy factories) clean themselves up and function better.
Why It Matters
Mitochondrial dysfunction is hypothesized to contribute to ME/CFS pathology, and this study identifies a specific molecular pathway (AMPK/ULK1-mediated autophagy) through which a non-pharmacological intervention might restore cellular energy production. Understanding these mechanisms could guide development of targeted therapies for the profound fatigue experienced by ME/CFS patients.
Observed Findings
Rats with induced CFS showed reduced body weight, swim time, and exploratory behavior compared to controls.
WNM and CoQ10 treatment both increased body weight, swimming endurance, and open-field activity in fatigued rats.
WNM and CoQ10 upregulated phosphorylated AMPK/ULK1 ratios and LC3-II/LC3-I ratios in skeletal muscle.
Electron microscopy showed that WNM improved mitochondrial morphology more effectively than CoQ10, reducing vacuole formation and swelling.
Gene expression of AMPK, ULK1, and LC3 was increased in both treatment groups compared to fatigued controls.
Inferred Conclusions
Warming needle moxibustion alleviates fatigue symptoms in a rat CFS model by activating the AMPK/ULK1 signaling pathway.
The mechanism involves upregulation of mitochondrial autophagy (specifically LC3-mediated clearance), which improves mitochondrial structure and function.
WNM appears to produce superior mitochondrial restoration compared to CoQ10 supplementation in this model.
Activation of AMPK/ULK1/LC3 signaling may be a therapeutic target for CFS.
Remaining Questions
Does warming needle moxibustion produce similar effects on AMPK/ULK1 signaling and mitochondrial function in humans with ME/CFS?
What This Study Does Not Prove
This study does not prove that warming needle moxibustion is effective in human ME/CFS patients—it is an animal model study only. The multi-factor stress model used creates fatigue-like symptoms in rats but may not fully recapitulate human ME/CFS pathophysiology. Additionally, the study cannot determine whether the observed molecular changes are causally responsible for symptom improvement or merely correlated with it.
Tags
Symptom:Fatigue
Biomarker:Gene ExpressionBlood Biomarker
Method Flag:PEM Not DefinedWeak Case DefinitionSmall SampleExploratory Only
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 →
Which specific acupuncture points or needle parameters are necessary for the observed effects?
How long do the benefits of WNM persist after treatment ends, and is repeated treatment necessary?
Does this mechanism explain fatigue in other disease contexts, and are there genetic or metabolic factors that predict which patients would respond to this approach?