自主神经调节剂对房颤模型大鼠心房电重塑及组织病理变化的影响
李嘉菲, 张朕豪, 王硕, 田歌, 温爽, 闫玉雪, 崔然, 叶振, 崔永春

Effects of Autonomic Neuromodulators on Atrial Electrical Remodeling and Histopathological Changes in a Rat Model of Atrial Fibrillation
LI Jiafei, ZHANG Zhenhao, WANG Shuo, TIAN Ge, WEN Shuang, YAN Yuxue, CUI Ran, YE Zhen, CUI Yongchun
图 2 自主神经调节剂诱发大鼠心房肌组织结构变化
注:A,大鼠超声长轴切面(左图为B超图,右图为M超图);B,HE染色(比例尺大小为3 mm);C,大鼠心脏质量与体重的比值(n=5);D,心肌组织中MMP-9和IL-1β蛋白质印迹结果;E,心肌组织MMP-9蛋白质印迹定量分析(n=3);F,心肌组织IL-1β蛋白质印迹定量分析(n=3);G,Masson染色(比例尺大小为60 μm);H,心肌纤维化水平定量分析[每组2只大鼠共3张切片进行统计学分析(n=3)]。LAD,左房前后径;MMP-9,基质金属蛋白酶-9;IL-1β,白细胞介素-1β;GAPDH为内参蛋白。与对照组相比,*P<0.05,***P<0.001。
Figure 2 Autonomic neuromodulators induce structural changes in rat atrial myocardium
Note: A, Long-axis section of a rat echocardiography (the left image is the B-mode ultrasound chart, and the right image is the M-mode ultrasound chart); B, HE staining (scale bar: 3 mm); C, Rat heart weight to body weight ratio (n=5); D, Western blotting images of MMP-9 and IL-1β proteins in myocardial tissues; E, Quantitative analysis of MMP-9 protein expression in myocardial tissues (n=3); F, Quantitative analysis of IL-1β protein expression in myocardial tissues (n=3); G, Masson's staining (scale bar: 60 μm); H, Quantitative analysis of myocardial fibrosis levels [three sections from two rats per group were subjected to statistical analysis (n=3)]. LAD, left atrial anteroposterior diameter; MMP-9, matrix metalloproteinase 9; IL-1β, interleukin-1 beta; GAPDH is an internal control. *P < 0.05, ***P < 0.001, compared with the control group.