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Mn(II)-Based MRI Contrast Agent Candidate for Vascular Imaging. | LitMetric

Mn(II)-Based MRI Contrast Agent Candidate for Vascular Imaging.

J Med Chem

Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.

Published: June 2020

AI Article Synopsis

Article Abstract

Toxicity concerns related to Gd(III)-based magnetic resonance imaging (MRI) agents prompted an intensive research toward their replacement by complexes of essential metal ions, like Mn(II). Here, we report a macrocyclic chelate, [Mn(PC2A-BP)], which possesses high thermodynamic stability (log = 14.86 and pMn=8.35) and kinetic inertness ( = 286.2 h) as well as as remarkable relaxivity ( = 23.5 mM s, 0.49 T, 37 °C) in the presence of human serum albumin, allowing a significant MRI signal intensity increase in the vasculature even at low dose (25 μmol/kg) of the complex.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.jmedchem.0c00197DOI Listing

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