0000000001039113
AUTHOR
C Mascarella
MOLECULAR CHARACTERIZATION OF MULTIDRUG-RESISTANT E. COLI ISOLATED FROM BACTEREMIA PATIENTS
Background: Extraintestinal pathogenic Escherichia coli (ExPEC) bacteria have the ability to cause diverse and serious diseases, such as urinary tract infections (UTIs) and bacteremia; incidence of bacteremia is increasing globally. The emergence of multidrug resistance in E. coli is also becoming a global concern, with particular emphasis on E. coli sequence type (ST) 131, which is being increasingly reported in UTIs. Drug resistance is mediated by extended- spectrum β-lactamases (ESBLs), mainly of the CTX-M family, particularly CTX-M-15, and less frequently of the SHV and OXA families. Few studies are available regarding the characterization of E. coli strains causing bacteremia. Methods:…
LEVELS OF HBD2 AND HBD3 IN PATIENTS INFECTED AND NON-INFECTED BY HELICOBACTER PYLORI
Introduction: Infection with Helicobacter pylori (H. pylori) evokes inflammatory and immune responses of the host, which most likely determine the clinical outcome of H. pylori infection. In the gastric epithelium, expression of human alpha-defensins, beta-defensins (hBD)-1, -2 and -3 has been detected in vivo. In particularly hBD3 as well hBD2 is known to be induced in gastric epithelial cells infection by the H. pylori and may be involved in the pathogenesis of H pylori-associated gastritis, possibly through its function as immune and inflammatory mediator. However, during prolonged infection, hBD3 was subsequently downregulated by the H. pylori virulence determinant CagA. Materials and M…