Opt imum killing of gram-negative bacteria in serum requires the participation of terminal components of the complement system, presumably through formation of a membrane attack complex (MAC) 1 containing complement components C5b6789 (13). Although it is clear that some gram-negative bacteria are highly resistant to serum killing in the presence of adequate antibody, the mechanism of this resi...

Urinary tract infections(UTIs) are among the most common bacterial infections encountered in clinical practice (Ejrnaes, 2011)) E.coli causes about 80%of acute UTIs(Mitsumori,1998).E.coli is the most prevalent facultative gram negative bacilli in the human fecal flora, usually inhabits the colon as an innocuous commensal (Johnson, 1991). E.coli strains causing disease outside the gastrointestin...

A total of ten Salmonella Gallinarum strains in log-phase of growth isolated from internal organs of dead hens with acute fowl typhoid were investigated for potential virulence factors. The strains differed in their acid tolerance, bile salts and serum resistance. S. Gallinarum cells were 70% resistant just 1 h post challenge at pH 2.0 and 0% at 4 and 24 h. When surviving at pH 2.5 and 3.0 it w...

retinol binding protein4 (rbp4) is a type of adipokine which transports vitamin a to serum. rbp4 could be a bridge between obesity and insulin resistance. this study aimed to investigate the effects of aerobic exercises on rbp4 serum's concentration and metabolic syndrome risk factors in obese women.twenty obese women with body max index 35.81±3.67kg/m2, fat percentage 43.98±4.02, and waist to ...

Type 2 diabetes mellitus (T2DM) is a group of metabolic disorders characterized by hyperglycemia owing to insulin resistance and/or insulin deficiency. Current theories of T2DM pathophysiology include a decline in β-cells function, a defect in insulin signaling pathways, and a dysregulation of secretory function of adipocytes. This study aimed to investigate the effect of different antidiabetic...

INTRODUCTION ............................................................. 46 MEASUREMENT OF BACTERICIDAL AND BACTERIOLYTIC ACTIVITY.................. 47 Deectio of Serum Bactericidal Activity ............................................................. 47 Deteto of Serum Bacterlolytic Activty ............................................................. 51 MECHANISM OF SERUM BACTERICIDAL AND ...