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Thalamic paraventricular nucleus mediates orexinergic neurons-induced promotion of emergence from general anesthesia in mice: evaluation using optogenetics method / 中华麻醉学杂志
Chinese Journal of Anesthesiology ; (12): 343-346, 2019.
Article in Chinese | WPRIM | ID: wpr-755555
ABSTRACT
Objective To evaluate whether the thalamic paraventricular nucleus mediates orexiner-gic ( orexin ) neurons-induced promotion of emergence from general anesthesia by using the optogenetics method in mice. Methods Twenty healthy male Hcrt-cre mice, aged 8-10 weeks, weighing 20-25 g, were divided into 4 groups ( n=5 each) using a random number table

method:

retrograde labeled viruses channelrhodopsin group ( R group) , anterograde labeled viruses channelrhodopsin group ( A group) , retro-grade labeled viruses control group ( RC group ) , and anterograde labeled viruses control group ( AC group) . The optogenetics technique was used in each group. Anesthesia was induced and maintained through inhaling 1% isoflurane and pure oxygen 1. 0 L∕min. Electroencephalogram was monitored througout the procedure with the PowerLab monitoring system. The burst suppression ratio ( BSR) was recorded at 1 min before light stimulation and during light stimulation. Results Compared with RC group or the baseline at 1 min before light stimulation, the BSR was significantly decreased during light stimulation in R group ( P<0. 05) . Compared with AC group or the baseline at 1 min before light stimulation, the BSR was signifi-cantly decreased during light stimulation in group A ( P<0. 05) . Conclusion Optogenetics technique ap-plication once again confirms that orexin neurons can promote emergence from general anesthesia through thalamic paraventricular nucleus in mice.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Anesthesiology Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Anesthesiology Year: 2019 Type: Article