Bacterial membrane permeability of antimicrobial polymethacrylates: Evidence for a complex mechanism from super-resolution fluorescence imaging.

Amphiphilic polymers bearing cationic moieties are an emerging alternative to traditional antibiotics given their broad-spectrum activity and low susceptibility to the development of resistance. To date, however, much remains unclear regarding their mechanism of action. Using functional assays (ATP leakage, cell viability, DNA binding) and super-high resolution structured illumination microscopy (OMX-SR) of fluorescently tagged polymers, we present evidence for a complex mechanism, involving membrane permeation as well as cellular uptake, interaction with intracellular targets and possible complexation with bacterial DNA.

Medium to long-term clinical outcomes with everolimus-eluting stents in real-life percutaneous coronary intervention.

Introduction: Everolimus eluting stents (EES) have demonstrated excellent re-stenosis and thrombosis rates in a number of randomised controlled trials. This study reported the real world experience in a single tertiary centre with EES in predominantly acute coronary syndrome (ACS) patients and compared the outcomes in small and large vessels. We measured the medium to long-term major adverse cardiovascular events (MACE) defined as all-cause mortality, myocardial infarction (MI) and target vessel revascularisation (TVR) and stent thrombosis.