Trimester-specific urinary metabolome alterations associated with gestational diabetes mellitus:A study in different pregnancy stages  

作　　者：Hongzhi Zhao Yuanyuan Zheng Lin Zhu Li Xiang Shunqing Xu Zongwei Cai 

机构地区：[1]State Key Laboratory of Environmental and Biological Analysis,Department of Chemistry,Hong Kong Baptist University,Hong Kong,China [2]Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria,College of Environmental Science and Engineering,Nankai University,Tianjin 300350,China [3]Key Laboratory of Environment and Health,Ministry of Education&Ministry of Environmental Protection,and State Key Laboratory of Environmental Health,School of Public Health,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Chinese Chemical Letters》2022年第6期3139-3143,共5页中国化学快报（英文版）

基　　金：National Natural Science Foundation of China(Nos.42177412 and 21437002);National Key Research and Development Program of China(Nos.2017YFC1600500 and 2019YFC1804602)。

摘　　要：Gestational diabetes mellitus(GDM),a frequently-occurring disease during pregnancy,may cause some adverse healthy outcome of both mother and offspring.However,the knowledge about metabolite alterations during the pathogenesis and development process is limited.Here,a large longitudinal nontargeted metabolomics study of 195 pregnant women(64 women with subsequently developed GDM and131 healthy controls)was conducted.Each participant provided urine samples at three timepoints during early,middle and late pregnancy,respectively.The metabolic profiles of 585 urine samples(195×3)were measured by using ultra-high performance liquid chromatography coupled with Orbitrap high-resolution mass spectrometry.Among the 56 identified metabolites,the levels of eight metabolites increased and three ones decreased in the first trimester,the concentration of one metabolite increased and those of 20 decreased in the second trimester,as well as the levels of five metabolites increased and two decreased in the third trimester.After false discovery rate correction,the levels of valine and 5-acetamidovalerate in GDM group significantly increased in the first trimester,the levels of 1-methylguanine and 1,3-dihydro-(2 H)-indol-2-one significantly decreased in the second trimester and three metabolites(threonine,OH-octanedioyl-carnitine and pimelylcarnitine)increased and N-acetyltryptophan decreased in the third trimester,respectively.Six metabolites,such as pantothenic acid and threonine,had significant interaction effects between gestational stage(different trimester)and group(GDM or control).The differential metabolites were involved in“tryptophan metabolism”,“purine metabolism”,“valine,leucine and isoleucine degradation”and other pathways.The findings may provide insights into further pathogenesis study of GDM.

关 键 词：Gestational diabetes mellitus Non-targeted metabolomics Dynamic metabolic profile Maternal urine High-resolution mass spectrometry 

分 类 号：R714.256[医药卫生—妇产科学]