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第46卷第7期 付太冉,孙传峰,咸 峰. 布比卡因脂通过线粒体钙信号轴影响老年麻醉患者认知功能的机制[J].
2026年7月 南京医科大学学报(自然科学版),2026,46(7):973-982 ·979 ·
A Con ASM981 POCD POCD+ASM981
3 *
Relative p⁃AMPK fluorescence intensity 1 #
Neun 2
0
Con ASM981 POCD
p⁃AMPK POCD+ASM981
Merge
B Con ASM981 POCD POCD+ASM981 C 80 Con ASM981
(s) 60 POCD POCD+ASM981
Escape latency 40 # *
20
0
1 2 3 4 5
Time(h)
D 8 E 60 F 80
Number of crossing 6 4 2 * # Time for staying in (s) the platform 40 * # Distance of target (%) quadrant 60 * #
40
20
20
0 0 0
Con ASM981 POCD+ASM981 Con ASM981 POCD+ASM981 Con ASM981 POCD+ASM981
POCD
POCD
POCD
A:Double immunofluorescence staining of p⁃AMPK(red)and NeuN(green)in mouse hippocampal tissue,and quantitative analysis of p⁃AMPK flu⁃
orescence intensity(×200). B:Swimming trajectories of mice on day 5. C:Escape latency of mice on day 5. D:Number of platform crossings of mice on
day 5. E:Residence time of mice in the original platform quadrant on day 5. F:Distance traveled by mice in the target quadrant on day 5. Compared
*
#
with the control group,P < 0.05;compared with the POCD group,P < 0.05(n=6).
图6 ASM981对BPV麻醉小鼠行为的影响
Figure 6 The effect of ASM981 on the behavior of BPV anesthetized mice
神经功能改变密切相关 [18] 。此外,BPV暴露6 h后, 在 POCD 小鼠大脑海马组织中,神经元线粒体
p⁃Ser637⁃Drp1 水平降低,线粒体 mito⁃Drp1 水平升 数量减少和大小异常,表明断裂的线粒体增加 [19] 。
高。这些发现表明线粒体断裂可能是对 BPV 暴露 本研究中,BPV 暴露后第 1、3 天小鼠海马中位于线
期间线粒体功能障碍的反应,并可能导致线粒体功 粒体的mito⁃Drp1水平显著增加,提示在BPV暴露的
能障碍。 老年小鼠海马内存在线粒体断裂,这种断裂的线粒

