Abstract
Targeted delivery of thrombolytic drug to the site of emboli exhibits potential to greatly reduce hemorrhagic side effect. A rat embolic model with an easy access of a magnet was established for study of the efficacy of magnetic drug targeting. In anesthetized rats, a whole blood clot produced in vitro was injected from the right iliac artery and lodged in the left iliac artery. Intra-arterial infusion of recombinant tissue plasminogen activator (rt-PA) thereafter significantly reversed the iliac flow within 15 min. Placement of an NdFeB magnet above the left iliac artery caused magnetic nanoparticle retention against hemodynamic dragging force in the presence and absence of the clot. Our results suggest the feasibility of this rat embolic model for the study of magnetic targeted delivery of thrombolytic drugs.
Original language | English |
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Pages (from-to) | 342-346 |
Number of pages | 5 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 311 |
Issue number | 1 SPEC. ISS. |
DOIs | |
State | Published - 04 2007 |
Keywords
- Magnetic nanoparticle
- Nanomedicine
- Targeted drug delivery
- Thromboembolic disease
- Thrombolysis
- Tissue plasminogen activator