Publications by authors named "Brian N Bourke"

Article Synopsis
  • The study investigates the role of matrix metalloproteinases (MMPs) in adverse left ventricular remodeling after myocardial infarction (MI) and emphasizes the need for noninvasive monitoring methods.
  • Researchers developed MMP-targeted radiotracers that bind selectively to active MMPs, showing significant retention in MI areas through both initial nonimaging studies and further imaging techniques.
  • The findings suggest that the novel imaging approach can effectively track MMP activation and its effects in heart tissue, providing diagnostic benefits for monitoring post-MI remodeling.
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Background: Noninvasive imaging strategies play a critical role in assessment of the efficacy of angiogenesis therapies. The alpha(v)beta3 integrin is activated in angiogenic vessels and represents a potential target for noninvasive imaging of angiogenesis.

Methods And Results: We evaluated a 99mTc-labeled peptide (NC100692) targeted at alpha(v)beta3 integrin for imaging in an established murine model of angiogenesis induced by hindlimb ischemia.

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Noninvasive imaging strategies will be critical for defining the temporal characteristics of angiogenesis and assessing efficacy of angiogenic therapies. The alphavbeta3 integrin is expressed in angiogenic vessels and represents a potential novel target for imaging myocardial angiogenesis. We demonstrated the localization of an indium-111-labeled ((111)In-labeled) alphavbeta3-targeted agent in the region of injury-induced angiogenesis in a chronic rat model of infarction.

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