中华麻醉在线
您当前位置:主页 > 热点专题 > 中国发表SCI论文汇总 >

Brain Sci:Propofol Induces Apoptosis of Neurons but Not Astrocytes, Oligodendrocytes, or Neural Stem Cells in the Neonatal Mouse Hippocampus.

2018-01-27 05:36  来源:未知  编辑:高国雷   点击:

Abstract

It has been shown that propofol can induce widespread apoptosis in neonatal mouse brains followed by long-term cognitive dysfunction. However, selective brain area and cell vulnerability to propofol remains unknown. This study was aimed to dissect toxic effect of propofol on multiple brain cells, including neurons, astrocytes, oligodendrocytes, and neural stem cells (NSCs). Seven-day-old mice were intraperitoneally administrated propofol or intralipid as a vehicle control for 6 hours. To identify vulnerable cells undergoing apoptosis following propofol exposure, brain sagittal sections were co-stained with antibodies against an apoptosis marker along with neuron, astrocyte, oligodendrocyte, or NSC markers using immunofluorescence staining. The results showed widespread apoptosis in propofol-treated brains (apoptotic cells: 1.55 ± 0.04% and 0.06 ± 0.01% in propofol group and intralipid-treated control group, respectively). Apoptotic cell distribution exhibits region- and cell-specific patterns. Several brain regions (e.g., cerebral cortex and hippocampus) were more vulnerable to propofol than other brain regions. Most apoptotic cells in the hippocampus were located in the cornus ammonis 1 (CA1) subfield. These apoptotic cells were only detected in neurons and not astrocytes, oligodendrocytes, or NSCs. These data demonstrate that different brain regions, subfields, and different types of neuronal cells in mice exhibit various vulnerabilities to propofol. Understanding region- and cell-specific susceptibility to propofol will help to better understand cellular contribution to developmental neurotoxicity and further develop novel therapeutic targets.

KEYWORDS:

apoptosis; astrocytes; neural stem cells; neurons; oligodendrocytes; propofol; selective vulnerability


相关推荐
网友评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
用户名: 验证码: 点击我更换图片
 
Copyright 中华麻醉在线 All rights reserved
地址:北京市东城区东四西大街42号中华医学会南楼2单元222室麻醉学分会办公室 邮编:100710
联系人:白雪   电话:010-85158614   传真:010-85158753   京ICP备14001125
360网站安全检测平台