Author(s): Memari E; Helfield B;

The recent and exciting success of anti-inflammatory therapies for ischemic heart disease (e.g. atherosclerosis) is hindered by the lack of site-specific and targeted therapeutic deposition. Microbubble-mediated focused ultrasound, which uses circulating, lipid-encapsulated intravascular microbubbles to locally enhance endothelial permeability, offers an ...

Article GUID: 38988819

Author(s): Memari E; Khan D; Alkins R; Helfield B;

Focused ultrasound (FUS) combined with intravascularly circulating microbubbles can transiently increase the permeability of the blood-brain barrier (BBB) to enable targeted therapeutic delivery to the brain, the clinical testing of which is currently underway in both adult and pediatric patients. Aside from traditional cancer drugs, this technique is bei ...

Article GUID: 38266715

Author(s): Memari E; Hui F; Yusefi H; Helfield B;

The local fluid dynamics experienced by circulating microbubbles vary across different anatomical sites, which can influence ultrasound-mediated therapeutic delivery efficacy. This study aimed to elucidate the effect of fluid flow rate in combination with repeated short-pulse ultrasound on microbubble-mediated endothelial cell permeabilization. Here, a se ...

Article GUID: 37150403

Author(s): He S; Singh D; Yusefi H; Helfield B;

In endothelial cells, microRNA-126 (miR-126) promotes angiogenesis, and modulating the intracellular levels of this gene could suggest a method to treat cardiovascular diseases such as ischemia. Novel ultrasound-stimulated microbubbles offer a means to deliver therapeutic payloads to target cells and sites of disease. The purpose of this study was to inve ...

Article GUID: 36559150

Author(s): He S; Singh D; Helfield B;

Localized and reversible plasma membrane disruption is a promising technique employed for the targeted deposition of exogenous therapeutic compounds for the treatment of disease. Indeed, the plasma membrane represents a significant barrier to successful delivery, and various physical methods using light, sound, and electrical energy have been developed to ...

Article GUID: 35456718

Author(s): Helfield B, Chen X, Watkins SC, Villanueva FS

Ultrasound Med Biol. 2020 May 10;: Authors: Helfield B, Chen X, Watkins SC, Villanueva FS

Article GUID: 32402675