七味白术散调节肠道微生态的物质基础

Regulatory effect of Qiwei Baizhu powder on intestinal microecology in patients with dysbacteria associated diarrhea

Diarrhea is a common clinical symptom in children. The main factor responsible for diarrhea is intestinal microecological imbalance. The effect of Qiwei Baizhu powder on infantile diarrhea is remarkable. Intestinal microecology is the hot topic in current research. It is of great significance to elucidate the curative effect of Chinese medicine and the pathogenesis of diarrhea. According to the connotation of microecology and by searching the literature, this article reviews the progress in research of intestinal microbial community structure, intestinal enzyme activity, and intestinal microbial metabolism. It is shown that Qiwei Baizhu powder can repair the intestinal mucosal barrier, inhibit the propagation of harmful bacteria in the intestine, adjust intestinal flora, and improve intestinal enzyme activity by promoting the growth of beneficial bacteria in the gut, especially the activity of intestinal lactase. Qiwei Baizhu powder can regulate the levels of enzyme activity and production. These results can be used to reveal the mechanism of diarrhea to promote the clinical application of Qiwei Baizhu powder.

Biotransformation of glycosides in herbal medicine by gut microbiota

The interdisciplinary research between traditional Chinese medicine and microecology has become a current hot topic. The interplay between herbal medicines and gut microbiota contributes greatly to explaining the scientific basis of herbal medicines (HMs) and guiding new drug discovery. Glycosides, widely distributed in HMs, have a very low bioavailability. Gut microbiota can transform glycosides into smaller substances or genin that have better bioactivity. This paper discusses the significance of biotransformation of glycosides by gut microbiota, in order to promote the HMs-based drug development.

Diversity of intestinal bacterial lactase gene in antibiotics-induced diarrhea mice treated with Chinese herbs compound Qi Wei Bai Zhu San

The current investigation is trying to study the impact of the mixture of Chinese herbs Qi Wei Bai Zhu San (QWBZS) on bacterial lactase gene from antibiotics-induced diarrhea (AAD) mice, as the good curative effect of QWBZS on diarrhea. Mice (6 mice per group) were randomly selected as control, model and treatment groups. To induce diarrhea, mice in both model and treatment groups were intragastrically injected with mixture of gentamycin sulfate and cefradine (23.33 mL kg^-1 day^-1) twice per day and continuously for totally 5 days. After the success of establishing diarrhea model, the mice in treatment group were gavaged with QWBZS for 3 days. Intestinal contents in all three groups were then collected and DNA was extracted in aseptic environment for the following sequencing. The results showed that mice from QWBZS treatment group had obviously detectable levels of intestinal bacteria, such as Actinobacteria, Firmicutes and Proteobacteria, which produce phyla lactase specifically. In comparison with other groups, the mice in treatment group had more abundant expression of lactase gene from Acidovorax sp. KKs102, Stenotrophomonas sp. LMG11000, Pseudomonas oleovorans, Eggerthella and Burkholderia. Interestingly, the Shannon index decreased significantly after the treatment with QWBZS (P < 0.01 or P < 0.05). 63.1% of lactase genes detected in the mice in treatment group were unclassified, and 32.8% of them were non-homologous to any fragments in the gene bank, which means that most of lactase-producing bacteria are novel. Our results indicate that treatment with QWBZS did not increase the diversity of bacterial lactase gene. Its curative effect on diarrhea may be relevant to its role in facilitating the growth of novel or some key lactase-producing strains.

Probiotics combined with montmorillonite for treatment of diarrhea in children: Effect on clinical symptoms, immune function, and adverse reactions

AIM

To evaluate the effect of probiotics combined with montmorillonite on clinical symptoms, immune function, and adverse reactions in children with diarrhea, in order to provide reference for clinical treatment of this disease in children.

METHODS

One hundred and twenty-four children with diarrhea treated at our hospital from September 2014 to August 2015 were randomly divided into either an observation group or a control group. The control group received conventional treatments including cooling, rehydration, and correction of electrolyte balance, and the observation group patients were treated with montmorillonite powder combined with probiotics. Time to clinical remission, indicators of immune functions, and adverse reactions were compared between the two groups.

RESULTS

The total effective rate was significantly higher in the observation group than in the control group (93.6% vs 79.1%, P < 0.05). Times to stool character recovery, fever remission, vomiting disappearance, abdominal pain relief, and fecal routine indicator recovery were significantly short in the observation than in the control group (2.1 d ± 1.0 d vs 4.7 d ± 2.0 d; 1.3 d ± 0.6 d vs 2.7 d ± 0.8 d; 1.2 d ± 0.4 d vs 2.5 d ± 0.9 d; 1.2 d ± 0.4 d vs 2.3 d ± 0.8 d, 2.5 d ± 1.0 d vs 4.5 d ± 1.3 d, P < 0.05). After treatment, immune function indexes were improved in both groups (P < 0.05), and IgA, IgG, and CD4⁺/CD8⁺ ratio were significantly higher in the observation group than in the control group (1.76 g/L ± 0.39 g/L vs 1.31 g/L ± 0.52 g/L; 15.72 g/L ± 0.63 g/L vs 10.95 g/L ± 0.64 g/L, 1.73 ± 0.25 vs 1.38 ± 0.25, P < 0.05). There were no significant adverse reactions observed in the treatment.

CONCLUSION

Montmorillonite powder combined with probiotics in the treatment of diarrhea in children can improve the therapeutic effect, shorten the time to disappearance of clinical symptoms, and improve immune function.