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湖南中医药大学,长沙 410208
Received:06 April 2022,
Published Online:15 June 2022,
Published:20 August 2022
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李玉丽,刘娅薇,谭周进.基于肠道菌群功能探究泄泻肠道湿热证和泄泻寒湿困脾证的“同病异治”[J].中国实验方剂学杂志,2022,28(16):140-149.
LI Yuli,LIU Yawei,TAN Zhoujin.Discussion on Treatment of Diarrhea of Intestinal Dampness-heat Syndrome and of Cold-dampness Disturbing Spleen Syndrome with Different Methods: Based on Intestinal Microbiota Function[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(16):140-149.
李玉丽,刘娅薇,谭周进.基于肠道菌群功能探究泄泻肠道湿热证和泄泻寒湿困脾证的“同病异治”[J].中国实验方剂学杂志,2022,28(16):140-149. DOI: 10.13422/j.cnki.syfjx.20220918.
LI Yuli,LIU Yawei,TAN Zhoujin.Discussion on Treatment of Diarrhea of Intestinal Dampness-heat Syndrome and of Cold-dampness Disturbing Spleen Syndrome with Different Methods: Based on Intestinal Microbiota Function[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(16):140-149. DOI: 10.13422/j.cnki.syfjx.20220918.
目的
2
研究泄泻肠道湿热证和寒湿困脾证在不同肠道生态位的菌群失调变化,为探索泄泻“同病异治”的治疗特色提供肠道菌群视角的客观依据。
方法
2
从美国国家生物技术信息中心(NCBI)数据库获取泄泻肠道湿热证和寒湿困脾证模型小鼠,以及方证相应方剂干预后模型小鼠的16S rRNA基因高通量测序数据,比较各组小鼠的肠道优势菌组成、菌群功能差异;同时运用Spearman分别计算各组菌群间的相关性,构建肠道菌群共现网络以研究菌群相互作用。
结果
2
泄泻肠道湿热证肠内容物菌群失调以
Muribaculum
、
Aerococcus
富集为特征,肠黏膜菌群失调则以革兰氏阴性菌
Neisseria
、
Capnocytophaga、Prevotella
富集为特征(
P
<
0.05),而葛根芩连汤治疗后不同肠道生态位菌群以
Lactobacillus
富集为特征,肠黏膜还伴有
Streptococcus
丰度增加。泄泻寒湿困脾证肠内容物菌群失调以
Lactobacillus
(
P
<
0.01)、
Clostridium sensu stricto 1
富集为特征,肠黏膜则以
Candidatus Arthromitus
、
Enterobacter
丰度增加为主(
P
<
0.05),而藿香正气散治疗后肠内容物以
Lactobacillus
富集为特征,而肠黏膜菌群特征体现在
Candidatus Arthromitus
、
Pseudomonas
、
Bacillus
富集。整体上,肠黏膜优势菌的差异贡献率高于肠内容物,且肠黏膜优势菌与其他菌的相互作用要多于肠内容物优势菌。
结论
2
不同中医证型泄泻的肠道菌群失调存在差异,方证相应调节菌群失调的疗效同样存在差别,且“同一病证”在不同肠道生态位的菌群失调也各具特征,提示肠道菌群可能是探索泄泻中医“同病异治”治疗特色的生物学基础之一。
Objective
2
To study the changes of microbiota in different intestinal niches in the instance of diarrhea with intestinal dampness-heat syndrome and cold-dampness disturbing spleen syndrome, so as to provide objective evidence for treating diarrhea with different methods from the perspective of intestinal flora.
Method
2
The 16S rRNA gene high-throughput sequencing data of model mice with diarrhea of the two syndromes and the model mice after prescription intervention were retrieved from National Center for Biotechnology Information (NCBI), and the intestinal dominant bacteria and microbial functions were compared among groups. Spearman's correlation coefficient among the microorganisms in each group was calculated and the co-occurrence networks of intestinal microbiota were constructed to study the interaction of the microbiota.
Result
2
The microbiota imbalance in intestinal contents of mice with diarrhea of intestinal dampness-heat syndrome was characterized by the enrichment of
Muribaculum
and
Aerococcus
, while the imbalance in intestinal mucosa was manifested by the enrichment of Gram-negative
Neisseria
,
Capnocytophaga
, and
Prevotella
(
P
<
0.05). However, after the treatment with Gegen Qinliantang, the microbiota in two distinct ecosystems was characterized by the enrichment of
Lactobacillus
and the abundance of
Streptococcus
in intestinal mucosa was increased. The microbiota imbalance in intestinal contents of diarrhea with cold-dampness disturbing spleen syndrome was characterized by the enrichment of
Lactobacillus
(
P
<
0.01) and
Clostridium sensu stricto 1
, while the intestinal mucosa was dominated by the increase of
Candidatus arthromitus
and
Enterobacter
. However, after the treatment with Huoxiang Zhengqi powder, the intestinal contents were characterized by
Lactobacillus
enrichment, while the intestinal mucosal flora was featured by the enrichment of
C. arthromitus
,
Pseudomonas
, and
Bacillus
. Overall, the contribution of dominant bacteria in intestinal mucosa to the difference was higher than that in intestinal contents, and more dominant bacteria in the intestinal mucosa interacted with other bacteria.
Conclusion
2
Microbiota imbalance is different for diarrhea of different syndromes, and the therapeutic effects of corresponding prescriptions are also different. In addition, the microbiota imbalance has different characteristics between intestinal niches for mice with diarrhea of the same syndrome. Therefore, intestinal flora may be one of the biological bases for exploring the characteristics of "treating the diarrhea with different methods" in Chinese medicine.
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