LEfSe analysis further confirmed that the significantly enriched biomarkers in the MC group included Streptococcus anginosus, Dialister, and Blautia; while the NC group was significantly enriched with Fournierella and UCG-009. This indicates that, although all patients were in the stable phase of COPD with deficiency syndrome, the MC group may exhibit a more pronounced feature of "pathogenic bacteria enrichment," providing a more sensitive background for observing the intervention effects of Bu Xu Ping Chuan膏 (a traditional Chinese medicine formulation).
Note: The term "Bu Xu Ping Chuan膏" is translated as "Bu Xu Ping Chuan膏 (a traditional Chinese medicine formulation)" to maintain clarity and provide context for non-Chinese readers.