Repeated cocaine administration results in supersensitivity of striatal D-2 dopamine autoreceptors to pergolide.
Repeated cocaine administration results in supersensitivity of striatal D-2 dopamine autoreceptors to pergolide.
复制标题
重复给予可卡因会导致纹状体 D-2 多巴胺自身受体对培高利特过度敏感。
DOI:
10.1016/0024-3205(88)90634-0
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发表时间:
1988
期刊:
影响因子:
6.1
通讯作者:
Zahniser,NR
中科院分区:
文献类型:
--
作者:
Dwoskin,LP;Peris,J;Yasuda,RP;Philpott,K;Zahniser,NR
Groups of rats administered cocaine-HCl (10 mg/kg, i.p.) or saline either acutely or once daily for 8 or 14 days were killed 24 hrs after the last dose. In striatal slices prelabelled with [3H]DA, modulation of [3H]-overflow by pergolide was used to measure D-2 autoreceptor activity. Compared to the contemporaneous control group pergolide produced a greater inhibition only in striatal slices from rats treated repeatedly with cocaine. In radioligand binding studies using striatal membranes from control rats, pergolide had a 500-fold greater affinity for the D-2, as opposed to the D-1, dopamine (DA) receptor subtype. These results indicate that repeated treatment with cocaine produces supersensitive striatal D-2 release-modulating autoreceptors consistent with a compensatory change to diminish the effect of elevated synaptic concentrations of DA produced by cocaine. In contrast, supersensitivity of D-2 receptors was not detected in [3H] spiperone binding assays.
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DOI:
--
发表时间:
1983-08
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
L. Iorio;A. Barnett;F. Leitz;V. Houser;C. Korduba
通讯作者:
L. Iorio;A. Barnett;F. Leitz;V. Houser;C. Korduba
DOI:
--
发表时间:
1986
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
Dwoskin,LP;Zahniser,NR
通讯作者:
Zahniser,NR
DOI:
--
发表时间:
1983
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
Zahniser,NR;Dubocovich,ML
通讯作者:
Dubocovich,ML
影响因子:
5
作者:
P. Laduron;P. Janssen;J. Leysen
通讯作者:
J. Leysen
影响因子:
21.1
作者:
M. Bannon;R. Roth
通讯作者:
M. Bannon;R. Roth