Cases of Clinical Staphylococcal Mastitis Accompanied by Increased Staphylococcal Enterotoxin-C in Mammary-gland Secretions

Staphylococcal aureus Enterotoxin C and Enterotoxin-Like L Associated with Post-partum Mastitis

Denmark is a low prevalence country with regard to methicillin resistant Staphylococcus aureus (MRSA). In 2008 and 2014, two neonatal wards in the Copenhagen area experienced outbreaks with a typical community acquired MRSA belonging to the same spa type and sequence type (t015:ST45) and both were PVL and ACME negative. In outbreak 1, the isolates harbored SCCmec IVa and in outbreak 2 SCCmec V....

Induction of nitric oxide production mediated by tumor necrosis factor alpha on staphylococcal enterotoxin C-stimulated bovine mammary gland cells.

Mammary gland (MG) secretions (MGS) derived from secretory cows infected with coagulase-negative staphylococci (CoNS) showed somatic cell counts and lactoferrin similar to levels found in the MGS of secretory cows infected with Staphylococcus aureus. However, nitrite and nitrate (NOx) and staphylococcal enterotoxin C (SEC) were found in MGS infected with S. aureus at much higher levels than in ...

C-Stimulated Bovine Mammary Gland Cells on Staphylococcal Enterotoxin Mediated by Tumor Necrosis Factor Alpha Induction of Nitric Oxide Production

The prevalence study of Staphylococcal enterotoxin genes from clinical samples of patients by multiplex PCR in Ahwaz hospitals.

Background: Several virulence factors have been described in pathogenesis of Staphylococcus aureus strains. Staphylococcal Enterotoxins(SEs) that is one of the most factors, are belonging to important members of bacterial superantigens. Superantigens are defined by their ability to stimulate cytokine release from both T cells and macrophages. 13 different SEs are known that their function is no...

Activation of bovine lymphocyte subpopulations by staphylococcal enterotoxin C.

Staphylococcus aureus is a major mastitis-causing pathogen in cattle. The chronic nature of bovine staphylococcal mastitis suggests that some products or components of S. aureus may interfere with the development of protective immunity. One class of molecules that could be involved are superantigens (SAgs). Although a significant number of mastitis isolates produce SAgs, the effect of these mol...