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首页> 外文期刊>Neurochemistry International: The International Journal for the Rapid Publication of Critical Reviews, Preliminary and Original Research Communications in Neurochemistry >Altered nitric oxide production in mouse brain after administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydro-pyridin or methamphetamine.
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Altered nitric oxide production in mouse brain after administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydro-pyridin or methamphetamine.

机译:服用1-甲基-4-苯基-1,2,3,6-四氢吡啶或甲基苯丙胺后,小鼠大脑中一氧化氮的产生改变。

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摘要

Several studies have demonstrated the involvement of reactive nitrogen and oxygen species (RNOS) in the neurotoxic effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydro-pyridin (MPTP) and methamphetamine (METH), so the contribution of altered nitric oxide synthase (NOS) enzyme function can be suspected. In this study, about 50% increase in nitric oxide (NO) production in the mouse striatum was found between 4 and 12 h after a single MPTP injection, allowing an increased peroxynitrite (ONOO-) formation in the target brain region. However, METH injection induced a rapid decrease of NO formation both in mouse striatum and hippocampus, reaching its minimum level at 2 h, and restored to the control value after 6 h in the striatum and 12 h in the hippocampus. The uncoupled function of NOS with increased superoxide (O2*-) production after METH injection is suggested.
机译:多项研究表明,活性氮和氧(RNOS)参与了1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP)和甲基苯丙胺(METH)的神经毒性作用,因此一氧化氮合酶(NOS)酶功能改变的贡献值得怀疑。在这项研究中,单次MPTP注射后4至12小时之间,小鼠纹状体中一氧化氮(NO)产量增加​​了约50%,从而使目标脑区域中的过氧亚硝酸盐(ONOO-)形成增加。然而,METH注射诱导小鼠纹状体和海马中NO的形成迅速减少,在2 h达到其最低水平,并在纹状体6 h和海马12 h后恢复到控制值。建议在注入METH后NOS与超氧化物(O2 *-)产生增加的解耦功能。

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