来曲唑诱导大鼠多囊卵巢综合征模型的肠道菌群分析
Gut microbiota in a rat model of polycystic ovary syndrome induced by letrozole
杨宏 1张振 1付旭锋1
作者信息
- 1. 宁夏医科大学生育力保持教育部重点实验室,银川 750004
- 折叠
摘要
目的 探讨来曲唑(雌激素合成抑制剂)是否会对多囊卵巢综合征患者的肠道微生物群的组成、多样性和丰度有影响.方法 利用来曲唑诱导并构建了PCOS大鼠模型,通过 16S rRNA的测序方法分析了正常和PCOS大鼠模型的肠道菌群结构.结果 在门水平,PCOS组的厚壁菌门(73.29%±5.34%vs.77.17%±4.01%)的丰度较正常组降低,拟杆菌门(23.85%±6.22%vs.17.21%±6.90%)的丰度增加.在属水平,PCOS的罗氏菌属(5.61%±3.20%vs.16.13%±6.20%)和苏黎世杆菌属(1.75%±2.23%vs.9.98%±7.34%)的丰度较正常组降低,而乳杆菌属(18.83%±11.50%vs.15.88%±7.06%)、普雷沃氏菌属(4.58%±1.09%vs.0.46%±0.15%)和瘤胃球菌属(2.97%±1.56%vs.1.16%±0.60%)的丰度增加,进一步分析了两组差异菌群的KEGG信号通路,结果显示PCOS大鼠模型的肠道内胆汁酸生物合成相关的信号通路发生了变化.结论 来曲唑灌胃构建的PCOS大鼠模型的肠道菌群结构明显发生紊乱,并且可能与胆汁酸生物合成相关的信号通路有关.
Abstract
Objective To investigate the effects of the estrogen synthesis inhibitor letrozole on the composition,diversity,and abundance of the intestinal microbiota in rats with polycystic ovary syndrome(PCOS).Methods A rat model of PCOS was induced using the estrogen synthesis inhibitor letrozole.The gut microbiota structures of normal and PCOS rats were analyzed 16S rRNA sequencing.Results At the phylum level,rats in the PCOS group had a lower abundance of Firmicutes(73.29%±5.34%vs.77.17%±4.01%)and a higher abundance of Bacteroidetes(23.85%±6.22%vs.17.21%±6.90%)compared with the normal group.At the genus level,the abundances of Rochella(5.61%±3.20%vs.16.13%±6.20%)and Zurichella(1.75%±2.23%vs.9.98%±7.34%)were lower in the PCOS group than in the normal group,but the abundances of Lactobacillus(18.83%±11.50%vs.15.88%±7.06%),Prevotella(4.58%±1.09%vs.0.46%±0.15%),and Ruminococcus(2.97%±1.56%vs.1.16%±0.60%)were increased.Analysis of Kyoto Encyclopedia of Genes and Genomes signaling pathways of the differentially expressed bacteria showed that signaling pathways related to bile acid biosynthesis in the intestine were changed in the PCOS rat model.Conclusions The structure of intestinal flora in PCOS rat model constructed by intragastric administration of letrozole is significantly disordered,which may be related to the signaling pathways related to bile acid biosynthesis.
关键词
多囊卵巢综合征/肠道微生物/16S/rRNA测序/厚壁菌门/拟杆菌门/胆汁酸生物合成Key words
polycystic ovary syndrome/gut microbiota/16S rRNA sequencing/Firmicutes/Bacteroidetes/bile acid biosynthesis引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据