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Shenling Baizhu Powder (参苓白术散) Ameliorates Pi (Spleen)-Deficiency-Induced Functional Diarrhea in Rats

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Abstract

Objective

To explore the mechanism of Pi (Spleen)-deficiency-induced functional diarrhea (FD) model rats treated by Shenling Baizhu Powder (参苓白术散, SBP).

Methods

Thirty male Sprague-Dawley rats were randomly divided into 5 groups including control, model, low-, medium-, and high-dose SBP groups (SBPLDG, SBPMDG, SBPHDG), 6 rats in each group, respectively. Pi-deficiency-induced FD rats model was developed through Radix et Rhizoma Rhei gavage for 7 days. After modeling, the rats were treated with 3 doses of SBP [0.93, 1.86, and 3.72 g/(kg·d)], and the rats in the control and model groups were given pure water for 7 days. The diarrhea index was calculated. On the 7th and 14th days, the traveled distance of rat was measured by the open field test. Serum D-xylose content was determined by the phloroglucinol method and interleukin (IL)-10 and IL-17 levels were measured using an enzyme-linked immunosorbent assay kit. The content of Treg cells was determined by flow cytometry.

Results

Compared with the control group, the diarrhea index and IL-17 level in the model group were significantly higher and the total exercise distance and D-xylose content significantly decreased (P>0.05). The expression of IL-10 in the SBPHDG group was significantly up-regulated, and serum D-xylose level and Treg cells increased significantly compared with the model group (P>0.05).

Conclusion

High-dose SBP exhibited ameliorating effects against Pi-deficiency induced FD, which might be attributed to its modulations on intestinal absorption function as well as adaptive immunity in mesenteric lymph nodes of rat.

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Authors and Affiliations

Authors

Contributions

Xiao Y was involved in all aspects of research, analyzed the data, and drafted the manuscript; Zhuang K and Zhu SY performed the experiments and analyzed the data; Deng XL and Chen XY contributed to revising the manuscript; Fu NL and Chen J participated in research design and supervision of the study.

Corresponding author

Correspondence to Jia Chen.

Ethics declarations

The authors declare that there is no conflict of interest.

Additional information

Supported by the National Natural Science Foundation of China (No. 81703956, 81830114, 81774164)

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Xiao, Y., Zhang, K., Zhu, Sy. et al. Shenling Baizhu Powder (参苓白术散) Ameliorates Pi (Spleen)-Deficiency-Induced Functional Diarrhea in Rats. Chin. J. Integr. Med. 27, 206–211 (2021). https://doi.org/10.1007/s11655-020-3259-4

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  • DOI: https://doi.org/10.1007/s11655-020-3259-4

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