Intestinal microbiota characteristics of mice treated with Folium senna decoction gavage combined with restraint and tail pinch stress

Zhen Yuan; Chenyang Zhang; Xinxin Peng; Lan Shu; Chengxing Long; Zhoujin Tan

doi:10.1007/s13205-020-02172-x

Intestinal microbiota characteristics of mice treated with Folium senna decoction gavage combined with restraint and tail pinch stress

3 Biotech. 2020 Apr;10(4):180. doi: 10.1007/s13205-020-02172-x. Epub 2020 Mar 27.

Authors

Zhen Yuan^{1

2}, Chenyang Zhang¹, Xinxin Peng², Lan Shu², Chengxing Long³, Zhoujin Tan¹

Affiliations

¹ 1Hunan University of Chinese Medicine, Xueshi Road 300, Yuelu District, Changsha, 410208 Hunan Province China.
² 3The First Hospital of Hunan University of Chinese Medicine, Changsha, 410007 Hunan Province China.
³ 2College of Mathematics and Finance, Hunan University of Humanities, Science and Technology, Dixing Road 487, Louxing District, Loudi, 417000 Hunan Province China.

Abstract

To investigate the characteristics of the intestinal microbiota of mice treated with Folium senna decoction gavage combined with restraint and tail pinch stress. Ten healthy male Kunming mice were chosen and randomly divided into control group and model group, with five mice in each group. Mice in the control group were raised regularly, while mice in the model group were treated by feeding with Folium senna decoction, restraint in a constraint tube and tail pinch with a clip for 7 days. Intestinal contents from the jejunum to ileum were collected, and DNA was extracted from each mouse. The characteristics of the intestinal microbial species were analysed by PacBio Sequel-based 16S rRNA sequencing. Result showed that alpha diversity indices in the model group were higher than those in the control group, and the Simpson index differed significantly (P < 0.05). Based on the composition and abundances of species, there were differences between the control group and model group at the species level, but these differences were not significant (P > 0.05). In the control group, Candidatus arthromitus sp. SFB-mouse and Lactobacillus johnsonii were the dominant species. In the model group, Staphylococcus lentus, Lactobacillus johnsonii, Candidatus arthromitus sp. SFB-mouse and Lactobacillus murinus were included. Furthermore, LEfSe analysis showed that the relative abundances of Escherichia sp. BBDP27, Helicobacter ganmani, Bacteroides vulgatus and Lactobacillus intestinalis in the model group were higher than those in the control group (P < 0.05 or P < 0.01). In conclusion, Folium senna decoction gavage combined with restraint and tail pinch stress increased the intestinal microbiota diversity. Strains associated with intestinal diseases, including Bacteroides vulgatus, Helicobacter ganmani, Staphylococcus lentus and Lactobacillus murinus, were significantly enriched, while strains beneficial to health, such as Candidatus arthromitus sp. SFB-mouse and Lactobacillus johnsonii, were significantly depleted.

Keywords: Folium senna; Intestinal microbiota; Restraint; Third-generation sequencing.