Vermiform appendix torsion complicated by postoperative venous pylephlebitis: a case report and review of literature.

Vermiform appendix torsion is a rare condition that mimics acute appendicitis and is diagnosed during surgery. On the other hand, pylephlebitis (or septic thrombophlebitis) is a complication that occurs due to occlusive thrombosis of mesenteric venous system branches secondary to intra-abdominal infections. Although rare since the antibiotic era, it must be considered in the differential diagnosis of postoperative fever.

Magnesium rescues the morphology of Bacillus subtilis mreB mutants through its inhibitory effect on peptidoglycan hydrolases.

Cell wall homeostasis in bacteria is tightly regulated by balanced synthesis and degradation of peptidoglycan (PG), allowing cells to expand their sacculus during growth while maintaining physical integrity. In rod-shaped bacteria, actin-like MreB proteins are key players of the PG elongation machinery known as the Rod complex. In the Gram-positive model bacterium Bacillus subtilis depletion of the essential MreB leads to loss of rod shape and cell lysis.

Biocorrosion on Nanofilms Induces Rapid Bacterial Motions via Iron Dissolution.

Stability and reactivity of solid metal or mineral surfaces in contact with bacteria are critical properties for development of biocorrosion protection and for understanding bacteria-solid environmental interactions. Here, we opted to work with nanosheets of iron nanolayers offering arbitrarily large and stable areas of contact that can be simply monitored by optical means. We focused our study on the sediments' bacteria, the strain MR-1, that served as models for previous research on electroactivity and iron-reduction effects.

Degradation Mechanism of Porous Metal-Organic Frameworks by In Situ Atomic Force Microscopy.

In recent years, Metal-Organic Frameworks (MOFs) have attracted a growing interest for biomedical applications. The design of MOFs should take into consideration the subtle balance between stability and biodegradability. However, only few studies have focused on the MOFs' stability in physiological media and their degradation mechanism.