Demonstration of a sucrose-derived contrast agent for magnetic resonance imaging of the GI tract
摘要:
A scaffold bearing eight terminal alkyne groups was synthesized from sucrose, and copies of an azide-terminated Gd-DOTA complex were attached via copper(I)-catalyzed azide-alkyne cycloaddition. The resulting contrast agent (CA) was administered by gavage to C3H mice. Passage of the CA through the gastrointestinal (GI) tract was followed by T-1-weighted magnetic resonance imaging (MRI) over a period of 47 h, by which time the CA had exited the GI tract. No evidence for leakage of the CA from the GI tract was observed. Thus, a new, orally administered CA for MRI of the GI tract has been developed and successfully demonstrated. (C) 2013 Elsevier Ltd. All rights reserved.
Demonstration of a sucrose-derived contrast agent for magnetic resonance imaging of the GI tract
摘要:
A scaffold bearing eight terminal alkyne groups was synthesized from sucrose, and copies of an azide-terminated Gd-DOTA complex were attached via copper(I)-catalyzed azide-alkyne cycloaddition. The resulting contrast agent (CA) was administered by gavage to C3H mice. Passage of the CA through the gastrointestinal (GI) tract was followed by T-1-weighted magnetic resonance imaging (MRI) over a period of 47 h, by which time the CA had exited the GI tract. No evidence for leakage of the CA from the GI tract was observed. Thus, a new, orally administered CA for MRI of the GI tract has been developed and successfully demonstrated. (C) 2013 Elsevier Ltd. All rights reserved.
Demonstration of a sucrose-derived contrast agent for magnetic resonance imaging of the GI tract
作者:Gary V. Martinez、Suryakiran Navath、Kamini Sewda、Venkataramanarao Rao、Parastou Foroutan、Ramesh Alleti、Valerie E. Moberg、Ali M. Ahad、Domenico Coppola、Mark C. Lloyd、Robert J. Gillies、David L. Morse、Eugene A. Mash
DOI:10.1016/j.bmcl.2013.02.008
日期:2013.4
A scaffold bearing eight terminal alkyne groups was synthesized from sucrose, and copies of an azide-terminated Gd-DOTA complex were attached via copper(I)-catalyzed azide-alkyne cycloaddition. The resulting contrast agent (CA) was administered by gavage to C3H mice. Passage of the CA through the gastrointestinal (GI) tract was followed by T-1-weighted magnetic resonance imaging (MRI) over a period of 47 h, by which time the CA had exited the GI tract. No evidence for leakage of the CA from the GI tract was observed. Thus, a new, orally administered CA for MRI of the GI tract has been developed and successfully demonstrated. (C) 2013 Elsevier Ltd. All rights reserved.