Acupressure attenuates fibromyalgia central sensitization via MAPK phosphorylation-mediated neuroinflammation regulation.

Fibromyalgia is a chronic pain condition that affects millions of people, causing widespread body pain, fatigue, and emotional distress. Scientists have struggled to understand what causes fibromyalgia and how to treat it effectively. This new study from China investigated whether acupressure—a technique that applies pressure to specific points on the body without needles—could help relieve fibromyalgia symptoms and explored how it works at the cellular level.

Researchers used rats with fibromyalgia-like symptoms to test acupressure therapy. They measured pain sensitivity, emotional behavior, and examined brain and spinal cord tissue to see what was happening inside the nervous system. The study found that acupressure significantly reduced pain sensitivity in the animals. At the molecular level, acupressure worked by calming overactive immune cells in the nervous system (microglia and astrocytes) and reducing inflammatory chemicals that amplify pain signals. Specifically, it blocked certain proteins called MAPK that trigger inflammation and central sensitization—a process where the nervous system becomes overly sensitive to pain.

Importantly, acupressure achieved these effects by modifying existing proteins rather than changing how cells make new proteins, suggesting a precise and targeted mechanism. The treatment also improved muscle function and addressed the physical symptoms of fibromyalgia.

For fibromyalgia patients, these findings provide scientific evidence that acupressure may offer real relief by addressing the root causes of pain hypersensitivity. The technique appears to work through multiple pathways simultaneously, which may explain why some patients experience broad symptom improvement. If you're considering acupressure for fibromyalgia management, seek treatment from a qualified acupuncturist or trained acupressure practitioner with experience in chronic pain conditions.

This preclinical study examined acupressure's mechanisms in attenuating central sensitization in a rat fibromyalgia model. Researchers assessed pain sensitivity via behavioral testing and employed Western blot and immunofluorescence to analyze MAPK pathway activity, glial activation, and inflammatory cytokine expression.

Key findings demonstrate that acupressure significantly reduced mechanical allodynia in FM rats by inhibiting phosphorylation of p38 MAPK and JNK MAPK pathways. This downstream suppression reduced microglial and astrocytic activation and decreased pro-inflammatory cytokines (TNF-α, IL-6) in the central nervous system. Notably, anti-inflammatory effects occurred through post-translational modification regulation rather than protein synthesis/degradation pathways, suggesting precise molecular targeting.

The study also documented improvements in muscle function and somatic manifestations. While sample sizes and effect sizes were not explicitly reported, the multi-modal assessment strengthens validity.

Clinical implications: This research provides mechanistic rationale for acupressure in fibromyalgia management, specifically targeting neuroinflammation and central sensitization. The dual MAPK pathway modulation offers theoretical support for acupressure's clinical efficacy in FMS symptom reduction. Further human trials are warranted to translate these findings into clinical protocols.