Characterization of norepinephrine accumulation by a crude synaptosomal-mitochondrial fraction isolated from rat heart.
Characterization of norepinephrine accumulation by a crude synaptosomal-mitochondrial fraction isolated from rat heart.
复制标题
从大鼠心脏中分离出的粗制突触体-线粒体组分对去甲肾上腺素积累的表征。
DOI:
10.1016/0024-3205(91)90528-j
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发表时间:
1991
期刊:
影响因子:
6.1
通讯作者:
Roberts,J
中科院分区:
文献类型:
--
作者:
Aloyo,VJ;McIlvain,HB;Bhavsar,VH;Roberts,J
Norepinephrine (NE) uptake into a heart synaptosomal-mitochondrial fraction was assessed under conditions where neuronal uptake (type 1) was linear with respect to both time and protein concentration. The NE accumulation process was sensitive to incubation temperature, sodium ion concentration and medium osmolality. Furthermore, NE uptake was attenuated by the neuronal uptake inhibitor desmethylimipramine (DMI) in a concentration dependent manner; the IC50value was approximately 10 nM and maximum inhibition was obtained at 100 nM. In contrast, the extraneuronal uptake inhibitor, metanephrine did not significantly attenuate NE uptake. Kinetic analysis demonstrated that the DMI sensitive NE accumulation is saturable with a KMof approximately 400 nM and that NE uptake occurs via a single uptake process. This demonstration of neuronal type NE uptake by a synaptosomal-mitochondrial fraction constitutes a successful demonstration of the preparation of a rat heart subcellular fraction containing functional synaptosomes.
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DOI:
--
发表时间:
1988
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
Daly,RN;Goldberg,PB;Roberts,J
通讯作者:
Roberts,J
影响因子:
4.7
作者:
W. S. Wilson;J. Cooper
通讯作者:
J. Cooper
DOI:
10.1093/geronj/44.3.b59
发表时间:
1989
期刊:
Journal of gerontology
影响因子:
--
作者:
Daly,RN;Goldberg,PB;Roberts,J
通讯作者:
Roberts,J
影响因子:
5.8
作者:
R. Colburn;F. Goodwin;D. Murphy;W. Bunney;J. Davis
通讯作者:
J. Davis
影响因子:
2.9
作者:
R. Simantov;A. Snowman;S. Snyder
通讯作者:
S. Snyder