Europium(III) DOTA-tetraamide Complexes as Redox-Active MRI Sensors
摘要:
PARACEST redox sensors containing the NAD(+)/NADH mimic N-methylquinolinium moiety as a redox-active functional group have been designed and synthesized. The Eu3+ complex with two quinolinium moieties was nearly completely CEST-silent in the oxidized form but was "turned on" upon reduction with beta-NADH. The CEST effect of the Eu3+ complex containing only one quinolinium group was much less redox-responsive but showed an unexpected sensitivity to pH in the physiologically relevant pH range.
Chemical exchange saturation transfer contrast agents
申请人:Caravan D. Peter
公开号:US20060275217A1
公开(公告)日:2006-12-07
Chelating ligands and metal chelates useful as CEST MR contrast agents are disclosed. The CEST agents can be used to evaluate blood volume changes in the heart and brain.
[EN] CHEMICAL EXCHANGE SATURATION TRANSFER CONTRAST AGENTS<br/>[FR] AGENTS DE CONTRASTE UTILISES POUR LE TRANSFERT DE SATURATION PAR ECHANGE CHIMIQUE (CEST)
申请人:EPIX PHARM INC
公开号:WO2006121889A2
公开(公告)日:2006-11-16
[EN] Chelating ligands and metal chelates useful as CEST MR contrast agents are disclosed. The CEST agents can be used to evaluate blood volume changes in the heart and brain. [FR] L'invention concerne des ligands de chélation et des chélates métalliques pouvant être utilisés en tant qu'agents de contraste pour l'imagerie par résonance magnétique selon la technique de transfert de saturation par échange chimique (CEST). Ces agents de contraste peuvent être utilisés pour évaluer les modifications de volume sanguin dans le coeur et dans le cerveau.