Asthma severity can be notably reduced by Xi Xin essential oil, which decreases inflammation, immunoglobulins, and fibrotic mediators, while also alleviating airway obstruction.
Network Pharmacology Xi Xin
AEO was administered via a nebulizer for three weeks ahead of exposing mice to ovalbumin (OVA), a protein commonly used to provoke an allergic reaction, and particulate matter (PM), common air pollutants. Co-treatment of AEO, OVA, and PM was carried out for four weeks. Additionally, A549 lung epithelial cells were exposed to PM to study the influence of AEO on lung-fibrosis-related factors.
In our study, we found that AEO notably inhibited goblet cell accumulation, which led to a decrease in epithelial thickness. Collagen deposition in lung tissues, a common marker of airway remodeling, was significantly inhibited by AEO in asthmatic mice exposed to OVA and PM. AEO also lessened the influx of inflammatory cells into the bronchoalveolar lavage fluid, an indicator of respiratory inflammation. Similarly, the increases in serum IgE and IgG, immunoglobulins associated with allergic reactions, and cytokines in lung tissues were reduced by AEO. Moreover, AEO successfully managed the expression of key fibrotic mediators, particularly POSTN and TGF-β. All these indicators point to AEO's potential as a promising therapeutic treatment to alleviate asthma symptoms.
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