Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats.

Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats.
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P10大鼠新生儿中风的瞬时脑中动脉闭塞模型。

DOI:
10.3791/54830
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发表时间:
2017-04-21
期刊:
Journal of visualized experiments : JoVE
影响因子:
--
通讯作者:
Gonzalez FF
Gonzalez FF
中科院分区:
其他
文献类型:
--
作者:
Larpthaveesarp A;Gonzalez FF

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许多动物模型已被用于研究未成熟和成熟脑中的缺氧缺血性损伤、创伤性损伤、全脑缺氧或永久性缺血。中风通常发生在人类的围产期,短暂性缺血再灌注是新生儿中风最常见的形式。再灌注阶段是损伤进展的关键组成部分,其发生在数天至数周的时间内,并且是对损伤的内源性反应的关键组成部分。出生后第10天(p10)大鼠短暂性大脑中动脉闭塞(tMCAO)模型创建了单侧非出血性局灶性缺血再灌注损伤,可用于研究局灶性损伤和修复的机制,在足月等效脑。由tMCAO产生的损伤模式是一致的且高度可重复的,并且可以通过MRI或组织学分析来确认。损伤的严重程度可以通过改变闭塞时间和其他方法来控制,这些方法将在后面讨论。
A number of animal models have been used to study hypoxic-ischemic injury, traumatic injury, global hypoxia, or permanent ischemia in both the immature and mature brain. Stroke occurs commonly in the perinatal period in humans, and transient ischemia-reperfusion is the most common form of stroke in neonates. The reperfusion phase is a critical component of injury progression, which occurs over a period of days to weeks, and of the endogenous response to injury. This postnatal day 10 (p10) rat model of transient middle cerebral artery occlusion (tMCAO) creates a unilateral, non-hemorrhagic focal ischemia-reperfusion injury that can be utilized to study the mechanisms of focal injury and repair in the full-term-equivalent brain. The injury pattern that is produced by tMCAO is consistent and highly reproducible and can be confirmed with MRI or histological analyses. The severity of injury can be manipulated through changes in occlusion time and other methods that will be discussed.
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