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Haloperidol rescues the schizophrenia-like phenotype in adulthood after rotenone administration in neonatal rats
Psychopharmacology ( IF 3.5 ) Pub Date : 2021-06-05 , DOI: 10.1007/s00213-021-05880-1
Thiago Garcia Varga 1 , Juan Guilherme de Toledo Simões 1 , Amanda Siena 2 , Elisandra Henrique 1 , Regina Cláudia Barbosa da Silva 3 , Vinicius Dos Santos Bioni 4 , Aline Camargo Ramos 5 , Tatiana Rosado Rosenstock 2, 6
Affiliation  

Neuropsychiatric disorders are multifactorial disturbances that encompass several hypotheses, including changes in neurodevelopment. It is known that brain development disturbances during early life can predict psychosis in adulthood. As we have previously demonstrated, rotenone, a mitochondrial complex I inhibitor, could induce psychiatric-like behavior in 60-day-old rats after intraperitoneal injections from the 5th to the 11th postnatal day. Because mitochondrial deregulation is related to psychiatric disorders and the establishment of animal models is a high-value preclinical tool, we investigated the responsiveness of the rotenone (Rot)-treated newborn rats to pharmacological agents used in clinical practice, haloperidol (Hal), and methylphenidate (MPD). Taken together, our data show that Rot-treated animals exhibit hyperlocomotion, decreased social interaction, and diminished contextual fear conditioning response at P60, consistent with positive, negative, and cognitive deficits of schizophrenia (SZ), respectively, that were reverted by Hal, but not MPD. Rot-treated rodents also display a prodromal-related phenotype at P35. Overall, our results seem to present a new SZ animal model as a consequence of mitochondrial inhibition during a critical neurodevelopmental period. Therefore, our study is crucial not only to elucidate the relevance of mitochondrial function in the etiology of SZ but also to fulfill the need for new and trustworthy experimentation models and, likewise, provide possibilities to new therapeutic avenues for this burdensome disorder.

Graphical abstract



中文翻译:

氟哌啶醇挽救新生大鼠鱼藤酮后成年期的精神分裂症样表型

神经精神障碍是多因素紊乱,包含多种假设,包括神经发育的变化。众所周知,生命早期的大脑发育障碍可以预测成年后的精神病。正如我们之前所证明的,鱼藤酮是一种线粒体复合物 I 抑制剂,可在出生后第 5 天至第 11 天腹腔注射后诱导 60 天大的大鼠的精神病样行为。由于线粒体失调与精神疾病有关,并且动物模型的建立是一种高价值的临床前工具,我们研究了鱼藤酮 (Rot) 处理的新生大鼠对临床实践中使用的药物氟哌啶醇 (Hal) 和哌甲酯 (MPD)。综上所述,我们的数据表明,经过 Rot 处理的动物表现出运动过度,P60 时社交互动减少,情境恐惧条件反射减弱,分别与精神分裂症 (SZ) 的阳性、阴性和认知缺陷一致,Hal 可逆转这些缺陷,但 MPD 未逆转。腐烂处理的啮齿动物也在 P35 显示前驱相关表型。总体而言,我们的结果似乎提出了一种新的 SZ 动物模型,这是关键神经发育时期线粒体抑制的结果。因此,我们的研究不仅对于阐明线粒体功能在 SZ 病因学中的相关性至关重要,而且对于满足对新的和值得信赖的实验模型的需求也至关重要,同样,为这种繁重的疾病提供新的治疗途径的可能性。和精神分裂症 (SZ) 的认知缺陷,分别由 Hal 恢复,但 MPD 不恢复。腐烂处理的啮齿动物也在 P35 显示前驱相关表型。总体而言,我们的结果似乎呈现出一种新的 SZ 动物模型,这是关键神经发育时期线粒体抑制的结果。因此,我们的研究不仅对于阐明线粒体功能在 SZ 病因学中的相关性至关重要,而且对于满足对新的和值得信赖的实验模型的需求也至关重要,同样,为这种繁重的疾病提供新的治疗途径的可能性。和精神分裂症 (SZ) 的认知缺陷,分别由 Hal 恢复,但 MPD 不恢复。腐烂处理的啮齿动物也在 P35 显示前驱相关表型。总体而言,我们的结果似乎呈现出一种新的 SZ 动物模型,这是关键神经发育时期线粒体抑制的结果。因此,我们的研究不仅对于阐明线粒体功能在 SZ 病因学中的相关性至关重要,而且对于满足对新的和值得信赖的实验模型的需求也至关重要,同样,为这种繁重的疾病提供新的治疗途径的可能性。我们的结果似乎提出了一种新的 SZ 动物模型,这是关键神经发育时期线粒体抑制的结果。因此,我们的研究不仅对于阐明线粒体功能在 SZ 病因学中的相关性至关重要,而且对于满足对新的和值得信赖的实验模型的需求也至关重要,同样,为这种繁重的疾病提供新的治疗途径的可能性。我们的结果似乎提出了一种新的 SZ 动物模型,这是关键神经发育时期线粒体抑制的结果。因此,我们的研究不仅对于阐明线粒体功能在 SZ 病因学中的相关性至关重要,而且对于满足对新的和值得信赖的实验模型的需求也至关重要,同样,为这种繁重的疾病提供新的治疗途径的可能性。

图形概要

更新日期:2021-06-05
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