Protection against DSP-4-induced neurotoxicity by deprenyl is not related to its inhibition of MAO B.
Protection against DSP-4-induced neurotoxicity by deprenyl is not related to its inhibition of MAO B.
复制标题
丙炔苯丙胺对 DSP-4 诱导的神经毒性的保护与其对 MAO B 的抑制无关。
DOI:
10.1016/0014-2999(90)90672-s
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发表时间:
1990
影响因子:
5
通讯作者:
Langston,JW
中科院分区:
文献类型:
--
作者:
Finnegan,KT;Skratt,JJ;Irwin,I;DeLanney,LE;Langston,JW
Clinical studies suggest that deprenyl may retard the progression of Parkinson's disease, an effect that may be related to its monoamine oxidase (MAO) inhibiting properties. Deprenyl also protects against the neurodegenerative effects of the noradrenergic toxin DSP-4. In this study we investigated the role of MAO B inhibition in this protection. C57BL/6 mice were given DSP-4 (50 mg/kg i.p.) 1 h, 24 h or 4 days after the administration of deprenyl (10 mg/kg i.p.) or the selective MAO B inhibitor MDL 72974 (1.25 mg/kg), and then killed 1 week later for assay of hippocampal norepinephrine. The MAO B inhibiting effects of deprenyl or MDL 72974 were also determined after these same intervals of time. Deprenyl and MDL 72974 produced comparable degrees of enzyme inhibition 1 h (> 95%), 24 h (> 90%) or 4 days (> 70%) after their administration. Given 1 h before, deprenyl totally blocked the norepinephrine-depleting effects of DSP-4, but this protection declined sharply when 24 h or 4 days was allowed to elapse between deprenyl and DSP-4 administration. MDL 72974 failed to protect at any time point. In vitro, we detected no activity using DSP-4 as a substrate for MAO. These findings suggest that the ability of deprenyl to protect against DSP-4-induced neuronal degeneration may not depend on its MAO B inhibiting properties.
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DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
J. Deloache;Ann L. Brown
通讯作者:
Ann L. Brown
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
K. Nelson;J. Gruendel
通讯作者:
J. Gruendel
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
Ann L. Brown;J. Deloache
通讯作者:
J. Deloache
影响因子:
56.9
作者:
DELOACHE, JS
通讯作者:
DELOACHE, JS
影响因子:
4.6
作者:
D. Gentner
通讯作者:
D. Gentner