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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
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