Preparation, characterization and in vivo assessment of Gd-albumin and Gd-dendrimer conjugates as intravascular contrast-enhancing agents for MRI.
Preparation, characterization and in vivo assessment of Gd-albumin and Gd-dendrimer conjugates as intravascular contrast-enhancing agents for MRI.
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DOI:
10.1016/j.jinorgbio.2011.01.017
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发表时间:
2011-05
影响因子:
3.9
通讯作者:
Brechbiel, Martin W.
中科院分区:
文献类型:
--
作者:
Nwe, Kido;Milenic, Diane;Bryant, L. Henry;Regino, Celeste A. S.;Brechbiel, Martin W.
We report in vivo and in vitro MRI properties of six gadolinium-dendrimer and gadolinium-albumin conjugates of derivatized acyclic diethylenetriamine-N,N’,N’,N’’, N’’-pentaacetic acid (1B4M) and macrocyclic 1,4,7,10-tetraazacyclododecane-N,N’,N’’,N’’’-tetraacetic acid (C-DOTA). The three albumin-based agents have comparable protein to chelate ratios (1:16–18) as well as molar relaxivity (8.8–10.4 mM−1s−1). The three dendrimer based agents have blood clearance half-lives ranging from 17 to 66 min while that of the three albumin-based agents are comparable to one another (40–47 min). The dynamic image obtained from use of the albumin conjugate based on the macrocycle (C-DOTA) showed a higher contrast compared to the remaining two albumin based agents. Our conclusion from all of the results is that the macrocyclic-based (DOTA) agents are more suitable than the acyclic-based (1B4M) agent for in vivo use based on their MRI properties combined with the kinetic inertness property associated with the more stable Gd(III) DOTA complex.
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影响因子:
4.7
作者:
Nwe K;Bryant LH Jr;Brechbiel MW
通讯作者:
Brechbiel MW
影响因子:
3.3
作者:
GERALDES, CFGC;SHERRY, AD;MULLER, RN
通讯作者:
MULLER, RN
影响因子:
4.7
作者:
Kobayashi, H;Sato, N;Brechbiel, MW
通讯作者:
Brechbiel, MW
影响因子:
3.4
作者:
CHANG, RLS;UEKI, IF;BRENNER, BM
通讯作者:
BRENNER, BM
影响因子:
6.7
作者:
Kiessling, F;Fink, C;Delorme, S
通讯作者:
Delorme, S