title: Serum paraoxonase activity and lipid parameters in the early postpartum period of dairy cows.
abstract: The effect of early lactation on serum paraoxonase activity was studied on 21 postpartum dairy cows and 19 non-pregnant late lactating dairy cows. A significant decrease of the paraoxonase activity was found in the early postpartum period compared to the late non-pregnant lactation. The serum triglyceride, cholesterol and LDL-cholesterol concentration were also markedly reduced during the postpartum period, while the serum HDL-cholesterol concentration showed no significant change. The results indicate that lower serum paraoxonase activity is associated with lipid metabolic disorders in the early postpartum period. A decreased serum paraoxonase activity may lead to the reduction of the antioxidative capacity and antioxidative protection during the early postpartum period.
authors.affiliation: Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia. rturk@vef.hr
authors.forename: R
authors.initials: R
authors.lastname: Turk
authors.forename: D
authors.initials: D
authors.lastname: Juretic
authors.forename: D
authors.initials: D
authors.lastname: Geres
authors.forename: N
authors.initials: N
authors.lastname: Turk
authors.forename: B
authors.initials: B
authors.lastname: Rekic
authors.forename: V
authors.initials: V
authors.lastname: Simeon-Rudolf
authors.forename: A
authors.initials: A
authors.lastname: Svetina
mesh_terms: D000818:Animals; D043303:Aryldialkylphosphatase / Q000097:blood*; D002417:Cattle; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D005260:Female; D007774:Lactation / Q000097:blood*; D008055:Lipids / Q000097:blood*; D049590:Postpartum Period / Q000097:blood*; D014280:Triglycerides / Q000097:blood
chemical_list: D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D008055:Lipids; D014280:Triglycerides; D002784:Cholesterol; D043303:Aryldialkylphosphatase