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Potential prognostic markers of retained placenta in dairy cows identified by plasma metabolomics coupled with clinical laboratory indicators

文献类型： 外文期刊

作者： Li, Yuqiong 1 ; Wen, Huiyu 1 ; Yang, Yuwei 1 ; Zhao, Zhengwei 1 ; Gao, Haihui 1 ; Li, Hongbing 1 ; Huang, Meizhou 2 ;

作者机构： 1.Ningxia Acad Agr & Forestry Sci, Lab Inst Anim Sci, Yinchuan, Peoples R China

2.Southwest Med Univ, Affiliated Hosp, Workstn Sichuan Prov, Luzhou, Peoples R China

关键词： Cow; retained placenta; metabolomics; prognostic markers; liquid chromatography-mass spectrometry; hormone

期刊名称：VETERINARY QUARTERLY （ 影响因子：8.071； 五年影响因子：5.618 ）

ISSN： 0165-2176

年卷期： 2022 年 42 卷 1 期

页码：

收录情况： SCI

摘要： The complex etiopathology of retained placenta (RP) and hazards associated with it has made it crucial for researchers and clinical veterinarians to study pathogenesis, early-warning diagnosis, and treatment. This study aimed to screen the potential prognostic markers of RP in dairy cows using plasma metabolomics coupled with clinical laboratory indicators. Blood samples were collected from 260 dairy cows at 21, 14, 7, and 0 days before parturition and 7, 14, and 21 days after parturition. Consequently, 10 healthy cows and 10 cows with RP with similar parity, body condition score, and age were included in the study. The changes in clinical laboratory indicators of the enrolled cows from 21 before parturition to 21 days after parturition were assessed. After initial overview of the multivariate statistical data using PCA analysis, the data were subjected to orthogonal partial least-squares discriminant analysis. Compared with cows with RP at 7 days before parturition, the levels of endothelin and 6-keto-prostaglandin F1 alpha were increased in healthy cows, while the level of estradiol and progesterone decreased. Adenine dinucleotide phosphate, hypoxanthine, guanine dinucleotide phosphate, inosine monophosphate, and L-arginine were revealed as potential prognostic markers of cows with RP at 7 days before parturition involved in the regulation of taste transduction, purine and glutathione metabolism, and autophagy. The best period for the early-warning diagnosis of RP in dairy cows is 7 days before parturition, and purine metabolism and autophagy may play a vital role in the occurrence and development of RP in dairy cows.

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