Details

Autor(en) / Beteiligte

• Deng, Li
• Shi, Yucong
• Liu, Pei
• Wu, Sizhi
• Lv, Yiwen
• Xu, Huachong
• Chen, Xiaoyin

Titel

GeGen QinLian decoction alleviate influenza virus infectious pneumonia through intestinal flora

Ist Teil von

• Biomedicine & pharmacotherapy, 2021-09, Vol.141, p.111896-111896, Article 111896

Ort / Verlag

France: Elsevier Masson SAS

Erscheinungsjahr

2021

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Influenza in humans is often accompanied by gastroenteritis-like symptoms. GeGen QinLian decoction (GQD), a Chinese herb formula, has been widely used to treat infectious diarrhea for centuries and has the effect of restoring intestinal flora. Studies have also reported that GQD were used to treat patients with influenza. However, whether regulating the intestinal flora is one of the ways GQD treats influenza has not been confirmed. In present research, we conducted a systemic pharmacological study, and the results showed that GQD may acts through multiple targets and pathways. In influenza-infected mice, GQD treatment reduced mortality and lung inflammation. Most importantly, the mortality and lung inflammation were also reduced in influenza-infected mice that have undergone fecal microbiota transplantation (FMT) from GQD (FMT-GQD) treated mice. GQD treatment or FMT-GQD treatment restores the intestinal flora, resulting in an increase in Akkermansia_muciniphila, Desulfovibrio_C21_c20 and Lactobacillus_salivarius, and a decrease in Escherichia_coli. FMT-GQD treatment inhibited the NOD/RIP2/NF-κB signaling pathway in the intestine and affected the expression of downstream related inflammatory cytokines in mesenteric lymph nodes (mLNs) and serum. In addition, FMT-GQD treatment showed systemic protection by restraining the inflammatory differentiation of CD4+ T cells. In conclusion, our study shows that GQD can affect systemic immunity, at least in part, through the intestinal flora, thereby protect the mice against influenza virus infectious pneumonia. •Gegen-Qinlian decoction (GQD) reduce mortality and lung inflammation in influenza infected mice.•Influenza virus infection affects the intestinal flora of mice, which is restored by GQD.•GQD reduce the expression of inflammatory cytokines and affects Th17/Treg ratio in influenza infected mice.