Serum amyloid A concentrations in cows given endotoxin as an acute-phase stimulant
1989
Boosman, R. | Niewold, T.A. | Mutsaers, C.W.A.A.M. | Gruys, E.
The concentrations of serum amyloid A (SAA) in 4 cows given Escherichia coli endotoxin as an acute-phase stimulant were quantitatively evaluated by use of an indirect micro-ELISA method and compared with other clinical hematologic values. Serum amyloid A concentration changed minimally after intradermal infection of endotoxin. The concentration of SAA was increased 5 hours after IV injection of endotoxin, with maximal concentration after 17 to 20 hours. The increase in SAA concentration coincided with decreasing serum Zn and Fe concentrations; however, Zn and Fe concentrations appeared to be restored when SAA concentration was still maximal. It was concluded that the SAA response of cattle is comparable with that of other species and can be used for monitoring the activity of clinical inflammation and tissue injury.
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