1. Peripheral leucocyte molecular indicators of inflammation and oxidative stress are altered in dairy cows with embryonic loss
- Author
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Hamid Deldar, William W. Thatcher, M. A. Sayyar, Essa Dirandeh, and Zarbakht Ansari-Pirsaraei
- Subjects
0301 basic medicine ,Antioxidant ,medicine.medical_treatment ,medicine.disease_cause ,Antioxidants ,chemistry.chemical_compound ,Pregnancy ,Animal physiology ,Leukocytes ,Ultrasonography ,chemistry.chemical_classification ,Multidisciplinary ,biology ,Eicosanoid metabolism ,Glutathione peroxidase ,04 agricultural and veterinary sciences ,Malondialdehyde ,Embryo Loss ,Medicine ,Female ,medicine.symptom ,Oxidation-Reduction ,Science ,Reproductive biology ,Inflammation ,Article ,Superoxide dismutase ,Andrology ,03 medical and health sciences ,medicine ,Animals ,RNA, Messenger ,Glutathione Peroxidase ,business.industry ,Superoxide Dismutase ,0402 animal and dairy science ,medicine.disease ,040201 dairy & animal science ,Oxidative Stress ,030104 developmental biology ,chemistry ,Gene Expression Regulation ,biology.protein ,Prostaglandins ,Eicosanoids ,Cattle ,Interferons ,business ,Oxidative stress - Abstract
Objective of experiment was to determine whether oxidative stress (OS) and inflammation altered embryonic loss in dairy cows. Blood samples were collected at days 0, 16, 32 and 60 after timed (AI) from 200 Holstein cows to determine embryonic loss based on interferon-stimulated gene-15 (ISG15) mRNA expression (day 16) and ultrasound at day 32 and day 60. Leucocyte expressions of mRNA TLR2, TLR4, TNF-α, IL1B, IL10, STAT3 (inflammation), PTGS2, PTGES (prostaglandin synthesis), and PLA2G4A and ALOX5AP (eicosanoid metabolism) at days 0 and 16 were determined. Plasma redox status for antioxidant enzymatic activities of glutathione peroxidase (GPX), superoxide dismutase (SOD), total antioxidant capacity (TAC), and concentrations of malondialdehyde (MDA) were determined at days 0, 16, 32 and 60. All antioxidant-redox responses were beneficially significant in pregnant cows diagnosed pregnant at day16 and sustained pregnancy to day 60 compared to non-pregnant cows at day16 or pregnant at day16 and lost embryos by days 32 or 60. The leucocyte mRNA expressions of TLR2, TLR4, STAT 3, IL1B, PTGS2, PLA2G4A and ALOX5AP were greater and PTGES was lower at day16 in pregnant cows that lost embryos early (P
- Published
- 2021