In vitro characterization of radioiodinated (-)-m-iodovesamicol in rat cerebral membranes.
In vitro characterization of radioiodinated (-)-m-iodovesamicol in rat cerebral membranes.
复制标题
大鼠脑膜中放射性碘化 (-)-m-碘维沙考的体外表征。
DOI:
10.1016/0024-3205(96)00419-5
复制
发表时间:
1996
期刊:
影响因子:
6.1
通讯作者:
N. Tonami
中科院分区:
文献类型:
--
作者:
K. Shiba;H. Mori;A. Ichikawa;N. Tonami
We investigated the binding characteristics of125I-(−)-m-iodovesamicol (125I- (−)-mIV), radioiodinated at the meta position of the 4-phenylpiperidine moiety, in cerebral membranes of the rat brain. The receptor binding affinity of (−)-mIV (Ki = 37 nM) was comparable to that of (−)-vesamicol (Ki = 30 nM). The stereoselectivity of (−)-mIV and (−)-vesamicol for the vesamicol receptor was very high [ both (−)mIY and (−)-vesamicol binding more than 20-fold more active than their (+)isomers], and125I-(−)-mIV had low affinity for the sigma, dopamine, serotonin, adrenaline and acetylcholine receptors. Furthermore, in a saturation binding study using cerebral membrane preparations, (−)-mIV exhibited a Kdof 18.2 nM with maximum number of binding site Bmaxof 660 fmol/mg of protein. These results showed that the characteristics of binding between (−)-mIV and (−)-vesamicol to cholinergic binding sites in the rat brain were similar.
影响因子:
7.3
作者:
Jung,YW;VanDort,ME;Gildersleeve,DL;Wieland,DM
通讯作者:
Wieland,DM
影响因子:
3.6
作者:
Kaufman,R;Rogers,GA;Fehlmann,C;Parsons,SM
通讯作者:
Parsons,SM
影响因子:
7.3
作者:
Rogers,GA;Parsons,SM;Anderson,DC;Nilsson,LM;Bahr,BA;Kornreich,WD;Kaufman,R;Jacobs,RS;Kirtman,B
通讯作者:
Kirtman,B