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Oxylipids are associated with higher disease risk in postpartum cows.
Putman, A K; Gandy, J C; Contreras, G A; Sordillo, L M.
  • Putman AK; Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824. Electronic address: putmanas@msu.edu.
  • Gandy JC; Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824.
  • Contreras GA; Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824.
  • Sordillo LM; Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing 48824.
J Dairy Sci ; 105(3): 2531-2543, 2022 Mar.
Article en En | MEDLINE | ID: mdl-35086706
ABSTRACT
Postpartum diseases are a major animal welfare and economic concern for dairy producers. Dysregulated inflammation, which may begin as soon as the cessation of lactation, contributes to the development of postpartum diseases. The ability to regulate inflammation and mitigate postpartum health diseases relies, in part, on the production of inflammatory mediators known as oxylipids. The objective of this study was to examine associations between oxylipids and postpartum diseases. Plasma samples were collected from 16 cattle via coccygeal venipuncture at the following time points 6 d before dry-off; dry-off (d 0); 1, 2, 6, and 12 d after dry-off; 14 ± 3 d before the expected calving date; and 7 ± 2 d after calving. After calving, cows were grouped according to if clinical disease was undetected throughout the sampling period (n = 7) or if they developed a disease postpartum (n = 9). Liquid chromatography-tandem mass spectrometry was used to analyze plasma concentrations of 63 oxylipid species. Of the 32 oxylipids detected, concentrations of 7 differed between cows with no detected disease and diseased cows throughout the sampling period. Thus, a variable oxylipid profile was demonstrated through 2 major physiological transitions of a lactation cycle. Further, the information gained from this pilot study using a small number of animals with diverse diseases from a single herd suggests that it may be possible to use oxylipids at early mammary involution to alert dairy producers of cows at risk for disease after calving. Future studies should be performed in larger populations of animals, including cows from diverse geographies and dairying styles, and focus on specific diseases to evaluate the utility of oxylipids as biomarkers. Furthermore, it is important to determine the clinical implications of variable oxylipid concentrations throughout the lactation cycle and if the oxylipid profile can be modulated to improve inflammatory outcomes.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Lactancia / Enfermedades de los Bovinos / Leche / Lípidos Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Animals Idioma: En Año: 2022 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Lactancia / Enfermedades de los Bovinos / Leche / Lípidos Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Animals Idioma: En Año: 2022 Tipo del documento: Article