Intra-Abdominal Infections: Prevalence and Risk Factors of ESBLs Infections.

Background: Extended-Spectrum Beta-Lactamases (ESBLs)-producing bacteria are increasing challenge in the treatment of both community acquired and nosocomial intra-abdominal infections (IAIs). Investigating the characteristics ofpatients with the IAIs caused by ESBL-producing bacteria and assessing the risk factors of ESBLs infection will lead to appropriate therapeutic management.

Objective: To determine prevalence of ESBL-producing bacteria in IAIs in Phramongkutklao Hospital and identify risk factor of the ESBL-infections.

Significant immunomodulatory effects of Pseudomonas aeruginosa quorum-sensing signal molecules: possible link in human sepsis.

Pathogenic bacteria use quorum-sensing signal molecules to co-ordinate the expression of virulence genes. Animal-based studies have demonstrated the immunomodulatory effects of quorum-sensing signal molecules. In the present study, we have examined the impact of these molecules on normal human immune function in vitro and compared this with immune changes in patients with sepsis where quorum-sensing signal molecules were detected in the sera of patients.