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吗啡给药对GluN3BNMDA受体亚单元mRNA表达在老鼠大脑中的影响

Shahrzad Nazari¹, Mitra-Sadat Sadat-Shirazi², Ali Shahbazi³

¹Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Acta neurobiologiae experimentalis

|April 8, 2024

概括

长期暴露于吗啡会显著增加GluN3B亚单元mRNA在老鼠的内核 (NAc). 在N-甲基-D-酸盐 (NMDA) 受体子单元中的这一发现可能会影响阿片类药物成机制.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
药理学药理学是一个学科.

背景情况:

阿片类药物成与N-甲基-D-阿斯巴达酸 (NMDA) 受体在中皮层临床系统的激活有关.
片成可能会改变NMDA受体子单元.
GluN3子单元可以调节NMDA受体通道活性.

研究的目的:

在急性和慢性吗啡暴露后,研究大鼠大脑中GluN3B亚单元mRNA表达的变化.
确定被吗啡影响的特定大脑区域,包括条纹体,海马和核 (NAc).

主要方法:

雄性Wistar大鼠每天接受6天内内皮内注射不断升级剂量的吗啡或盐水 (慢性) 或单剂量 (急性).
实时PCR用于量化特定大脑区域NMDA受体GluN3B亚单元的mRNA水平.

主要成果:

与对照人群相比,慢性吗啡的使用显著增加了GluN3B亚单元mRNA表达的3.15倍.
在慢性吗啡治疗后,在条纹体或海马体中没有观察到GluN3B亚单元表达的显著变化.
急性吗啡暴露并没有导致GluN3B亚单元表达在被检查的大脑区域的显著差异.

结论:

长期暴露于吗啡可以选择性地调节大鼠核中NMDA受体GluN3B子单元.
这种增加的GluN3B表达对阿片类药物成的功能影响需要进一步研究.

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