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Article Abstract
During the process of acute lung injury (ALI) associated with sepsis, the α7nAChR in the cholinergic anti-inflammatory pathway (CAP) plays a crucial role. However, the roles of electroacupuncture (EA) and specialized pro-resolving mediators (SPMs) in this context remain unclear. In this study, we demonstrated that EA activates CAP via α7nAChR, reducing lung permeability and inflammatory cytokine release. Our results highlighted lipoxin A4 (LXA4) as a crucial SPM in this process. EA was shown to enhance LXA4 synthesis and alleviate symptoms in patients with sepsis-related acute respiratory distress syndrome (ARDS). Studies using α7nAChR-deficient mice confirmed its essential role in LXA4 regulation. Macrophages in bronchoalveolar lavage fluid (BALF) were identified as key contributors to the protective effects of LXA4, further supported by experiments involving pulmonary macrophage depletion. In summary, we discovered a novel anti-inflammatory pathway where EA activates α7nAChR, leading to increased LXA4 production and lung protection.
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| http://dx.doi.org/10.1016/j.intimp.2024.113941 | DOI Listing |
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