PMID: 9160427Jan 1, 1997Paper

Accumulation of leucocytes and cytokines in the lactating ovine udder during mastitis due to Staphylococcus aureus and Escherichia coli

Research in Veterinary Science
K Persson-WallerH F Seow

Abstract

The accumulation of leucocytes in milk and in teat cistern tissues, and the presence of the cytokines interleukin-1 beta (IL-1 beta), tumour necrosis factor-alpha (TNF-alpha), interleukin-8 (IL-8), granulocyte-macrophage colony-stimulating factor (GM-CSF) and interferon-gamma (IFN-gamma) in milk was studied during inflammation in the lactating ovine udder induced by Staphylococcus aureus and Escherichia coli. Milk and/or teat tissue samples were taken before and four, eight and 24 hours after inoculation. Both S aureus and E coli induced a significant accumulation of leucocytes in milk, S aureus from eight hours with a peak after 24 hours, and E coli from four hours, with a peak after eight hours. After the inoculation of S aureus the numbers of subepithelial neutrophils in the teat cistern tissues were increased after four hours and had increased further by eight hours. After the inoculation of E coli, tissue neutrophil numbers peaked at four hours and were still high at eight hours. Large numbers of S aureus were recovered from milk throughout the experiments whereas the recovery of E coli diminished over time. TNF-alpha, IL-8 and IL-1 beta were detected in milk during the inflammation, and low levels of GM-CSF and IFN-gamma ...Continue Reading

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Citations

May 15, 2002·Veterinary Immunology and Immunopathology·Venu GangurSirinart Thanesvorakul
Nov 7, 2000·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·S D SwainM T Quinn
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Apr 14, 2012·The Veterinary Journal·Olga Wellnitz, Rupert M Bruckmaier
Feb 27, 2007·International Immunopharmacology·Yu-Min ZhuWei-Hua Chen
Jul 21, 2001·Tuberculosis·P R Wood, S L Jones
Jul 28, 2004·Research in Veterinary Science·Ahmed M Alluwaimi
May 6, 2006·Comparative Immunology, Microbiology and Infectious Diseases·David McClenahanCharles Czuprynski
Jan 14, 2010·The Journal of Veterinary Medical Science·Eiji HataMasashi Eguchi
Jun 4, 2010·International Orthopaedics·Yu-Chih Huang, Wen-Lin Yeh
Jul 3, 2008·Veterinary Research·Pascal RainardFlorence B Gilbert
Jan 1, 2014·Journal of Veterinary Medicine·Mohamed Ezzat AlnakipJorge Barros-Velázquez

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