Gut microbiota dysbiosis in preeclampsia patients in the second and third trimesters  

作　　者：Jing Wang Zhong-Hua Shi Jing Yang Yuan Wei Xiao-Ye Wang Yang-Yu Zhao 

机构地区：[1]Department of Obstetrics and Gynecology,Peking University Third Hospital,Beijing 100191,China [2]Department of Obstetrics and Gynecology,Women’s Hospital of Nanjing Medical University,Nanjing Maternity and Child Health Care Hospital,Nanjing,Jiangsu 210011,China

出　　处：《Chinese Medical Journal》2020年第9期1057-1065,共9页中华医学杂志（英文版）

基　　金：The work was supported by grants from the Beijing Natural Science Foundation-Sanyuan Corporation Co-sponsored Project(No.S150001);National Natural Science Foundation Project(No.81490745)。

摘　　要：Background:Preeclampsia(PE)is a serious complication that affects maternal and perinatal outcomes.However,the mechanisms have not been fully explained.This study was designed to analyze longitudinal gut microbiota alterations in pregnant women with and without PE in the second(T2)and third trimesters(T3).Methods:In this nested case-control study,which was conducted at Nanjing Maternity and Child Health Care Hospital,fecal samples from 25 PE patients(25 fecal samples obtained in T2 and 15 fecal samples obtained in T3)and 25 matched healthy controls(25 fecal samples obtained in T2 and 22 fecal samples obtained in T3)were collected,and the microbiota were analyzed using 16S rRNA gene sequencing.The diversity and composition of the microbiota of PE cases and controls were compared.Results:No significant differences in diversity were found between the PE and control groups(P>0.05).In the control group,from T2 to T3,the relative abundances of Proteobacteria(median[Q1,Q3]:2.25%[1.24%,3.30%]vs.0.64%[0.20%,1.20%],Z=-3.880,P<0.05),and Tenericutes(median[Q1,Q3]:0.12%[0.03%,3.10%]vs.0.03%[0.02%,0.17%],Z=-2.369,P<0.05)decreased significantly.In the PE group,the relative abundance of Bacteroidetes in T2 was lower than in T3(median[Q1,Q3]:18.16%[12.99%,30.46%]vs.31.09%[19.89%,46.06%],Z=-2.417,P<0.05).In T2,the relative abundances of mircrobiota showed no significant differences between the PE group and the control group.However,in T3,the relative abundance of Firmicutes was significantly lower in the PE group than in the control group(mean±standard deviation:60.62%±15.17%vs.75.57%±11.53%,t=-3.405,P<0.05).The relative abundances of Bacteroidetes,Proteobacteria,and Enterobacteriaceae were significantly higher in the PE group than in the control group(median[Q1,Q3]:31.09%[19.89%,46.06%]vs.18.24%[12.90%,32.04%],Z=-2.537,P<0.05;1.52%[1.05%,2.61%]vs.0.64%[0.20%,1.20%],Z=-3.310,P<0.05;0.75%[0.20%,1.00%]vs.0.01%[0.004%,0.023%],Z=-4.152,P<0.05).Linear discriminant analysis combined effect size measurements analysis showed that the re

关 键 词：Gut microbiota PREECLAMPSIA INFLAMMATION Second trimester Third trimester 

分 类 号：R574[医药卫生—消化系统]