Pyrroloquinoline quinone prevents MK-801-induced stereotypical behavior and cognitive deficits in mice

Pyrroloquinoline quinone prevents MK-801-induced stereotypical behavior and cognitive deficits in mice
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吡咯喹啉醌可预防 MK-801 诱导的小鼠刻板行为和认知缺陷

DOI:
10.1016/j.bbr.2013.10.025
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发表时间:
2014-01
影响因子:
2.7
通讯作者:
Kong Yanyan
Kong Yanyan
中科院分区:
心理学3区
文献类型:
--
作者:
Zhou Xingqin;Chen Quancheng;Hu Xindai;Mao Shishi;Kong Yanyan

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吡咯喹啉醌(PQQ)是一种必需的营养素、抗氧化剂、氧化还原调节剂和神经生长因子,可预防与氧化应激诱导的神经变性相关的认知缺陷。以往的分子影像学研究也表明PQQ与N-甲基天冬氨酸(NMDA)受体结合。在这项研究中,我们研究了PQQ对刻板行为和MK-801(一种用于精神分裂症模型的非竞争性NMDA拮抗剂)诱导的认知障碍的影响。小鼠重复注射MK-801(0.5 mg/kg/d)和PQQ(0.2、2.0或20 μg/kg/d),持续60天。使用各种运动、社交和认知测试评估行为。我们发现,PQQ给药显著减弱MK-801诱导的刻板行为和共济失调的增加,表明PQQ对MK-801诱导的神经元功能障碍和精神疾病具有保护作用。未来的研究是必要的,以阐明PQQ的潜在机制。
Pyrroloquinoline quinone (PQQ), an essential nutrient, antioxidant, redox modulator, and nerve growth factor, prevents cognitive deficits associated with oxidative stress-induced neurodegeneration. Previous molecular imaging studies also demonstrate that PQQ binds toN-methyld-aspartate (NMDA) receptors. In this study, we investigated the effects of PQQ on stereotypical behaviors and cognitive deficits induced by MK-801, a non-competitive NMDA antagonist used to model schizophrenia. Mice were given repeated injections of MK-801 (0.5 mg/kg/d) and PQQ (0.2, 2.0, or 20 μg/kg/d) for 60 days. Behavior was evaluated using a variety of motor, social, and cognitive tests. We found that PQQ administration significantly attenuated MK-801-induced increases in stereotypical behavior and ataxia, suggesting a protective role of PQQ against MK-801-induced neuronal dysfunction and psychiatric disorders. Future studies are necessary to elucidate the underlying mechanisms of PQQ.
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