Ventricular rupture during the removal of Impella 5.5 in a patient with fulminant myocarditis.

Unlabelled: Ventricular perforation or rupture caused by Impella (Abiomed Inc., Danvers, MA, USA) is extremely rare. The Japanese registry of Impella usage reported that the incidence of perforation was 0.

Apoptosis induced by Ibaraki virus does not affect virus replication and cell death in hamster lung HmLu-1 cells.

Ibaraki virus (IBAV) is an arbovirus that is transmitted by biting midges and causes Ibaraki disease in cattle. IBAV induces apoptosis in several mammalian cell lines, and apoptosis in turn facilitates IBAV replication. In addition, virus-induced apoptosis may contribute to mammalian-specific pathogenicity considering that some arboviruses induce apoptosis in mammalian cells but not in insect cells.

The requirement of environmental acidification for Ibaraki virus infection to host cells.

The effect of environmental acidification on Ibaraki virus (IBAV) infection was tested using endosomal inhibitory chemicals and low pH treatment. Treatment of target cells with endosomal inhibitors significantly decreased the progeny virus production. IBAV outer capsid proteins, VP5 and VP2, were removed from virion when purified IBAV was exposed to low pH environment.