文献类型： 外文期刊
作者： Zhou, Chen 1 ; Cai, Gengyuan 1 ; Meng, Fanming 3 ; Hu, Qun 1 ; Liang, Guohao 1 ; Gu, Ting 1 ; Zheng, Enqin 1 ; Li, Zicong 1 ; Wu, Zhenfang 1 ; Hong, Linjun 1 ;
作者机构： 1.South China Agr Univ, Coll Anim Sci, Natl Engn Res Ctr Breeding Swine Ind, Guangzhou 510642, Guangdong, Peoples R China
2.South China Agr Univ, Coll Anim Sci, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangzhou, Peoples R China
3.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou, Peoples R China
关键词： Pig; Early pregnancy; Urine; Metabolome; Pregnanediol-3-glucuronide
期刊名称：PORCINE HEALTH MANAGEMENT （ 影响因子：3.535； 五年影响因子：3.911 ）
ISSN：
年卷期： 2022 年 8 卷 1 期
页码：
收录情况： SCI
摘要： Background Embryo implantation in sows is an important event during pregnancy. During this process, blastocysts undergo dramatic morphologic changes, and the endometrium becomes receptive. Studies have shown that developmental changes associated with the crosstalk between peri-implantation embryos and embryo-uterine are driven by various biomolecules secreted by the endometrium and embryos. In sows, changes in the uterus are also reflected in circulating body fluids and urine. Metabolomics reveals the metabolic state of cells, tissues, and organisms. In this study, we collected urine samples from large white sows during the peri-implantation period. The levels of urinary metabolites at different periods were analyzed using ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) analysis techniques. Results A total of 32 samples were collected from 8 sows during the estrus period and at each phase of early pregnancy (9, 12, and 15 days of gestation). A total of 530 metabolites were identified with high confidence in all samples. Compared with samples collected during the estrus phase, 269 differential metabolites were found in samples obtained during early pregnancy. Conclusions The identified metabolites included lipids and lipid-like molecules, organic acids and their derivatives, organic oxygen compounds, organoheterocyclic compounds, benzenoids, among others. Metabolites, such as choline and pregnanediol-3-glucuronide, play important roles in pregnancy in sows and other animals. These results reveal the metabolic changes in urine of sows during early pregnancy phase. The differential urinary metabolites can be used for assessing peri-implantation status in sows. Understanding these metabolic changes may promote the management of pregnant sows through various interventions such as provision of proper nutrition.
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