BackgroundSurgical site infections are a global patient safety concern. Due to lack of evidence on contamination, pre-set surgical goods sometimes disposed or re-sterilized, thus increasing costs, resource use, and environmental effects.AimTo investigate time-dependent bacterial air contamination covered uncovered sterile in the operating room.MethodsBlood agar plates (N = 1584) were used detec...

Aerobic and microaerobic diazotrophs possess numerous oxygen restriction strategies to protect nitrogenase from inactivation by oxygen without interfering with energy generation through oxidative phosphorylation. Protection by conformational change in nitrogenase was first detected and described in Azotobacter. This strategy once considerd unique for Azotobacter has been shown in this study to ...

Cell-free extracts of a facultative methylotroph and strict aerobe, Protaminobacter ruber, could catalyze formation of beta-methylaspartate from glutamate. beta-Methylaspartate formed was further converted to mesaconate. From these results, it was found that the cells of P. ruber contained a sequential reaction system of glutamate mutase and beta-methylaspartase. The level of glutamate mutase a...

Necrotizing fasciitis is characterized by a rapidly progressing necrosis of subcutaneous fat and fascia that rarely occurs in head and neck. It can be life threatening in the case of late diagnosis and antibiotic therapy and without surgical intervention. It is caused by group A streptococci or by a synergistic combination of aerobe and anaerobe microorganisms and bacterial synergy is an import...