Inflammation in the bovine teat cistern induced by Staphylococcus aureus

Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B
K PerssonP Jonsson

Abstract

The inflammatory response, characterized by the accumulation of leukocytes, bovine serum albumin and the lysosomal enzyme N-acetyl-beta-D-glucosaminidase, was studied after inoculation of either 5 x 10(5) colony-forming units (CFU) or 2 x 10(2) CFU of the Staphylococcus aureus strain SA 14391 into teat cisterns of dry cows after surgical closure of the passage between the teat and udder cisterns. Teat cistern samples were taken before, and twice daily for 7 days after, inoculation of the bacteria. Infusion of sterile saline constituted a control. Persistent infections occurred in all teats inoculated with the higher dose (5 x 10(5) CFU) of bacteria, and a prominent inflammatory response was elicited. Marked differences were observed in leukocyte migration patterns between different cows, and a cyclic influx of leukocytes was evident. Inoculation of the lower dose (2 x 10(2) CFU) of bacteria did not result in a persistent infection, and only a slight inflammatory response was observed. The results indicate that the bovine teat tissues are capable of mounting a strong local inflammatory response to S. aureus infection. A large number of leukocytes invaded the teat, but, despite their numbers, they were unable to subdue the infect...Continue Reading

References

May 1, 1992·Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B·K PerssonA J Guidry
May 1, 1990·Journal of General Microbiology·M LindahlP Jonsson
Oct 1, 1990·Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B·K Persson
Oct 1, 1990·Journal of Dairy Science·P M SearsR N Gonzalez
Sep 1, 1989·Zentralblatt für Veterinärmedizin. Reihe B. Journal of veterinary medicine. Series B·K Persson, G Aström
Mar 1, 1988·Journal of Dairy Science·M NiemialtowskiS P Targowski
Jan 1, 1988·Veterinary Microbiology·J P OpdebeeckD O'Boyle
Sep 1, 1965·Immunochemistry·G ManciniJ F Heremans

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Citations

Apr 2, 2003·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·K Persson WallerA Johannisson
Aug 25, 2012·Journal of Dairy Science·O ReksenY H Schukken
Sep 21, 2007·Journal of Dairy Science·O ReksenO Østerås

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