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中华移植杂志(电子版) ›› 2024, Vol. 18 ›› Issue (05) : 278 -282. doi: 10.3877/cma.j.issn.1674-3903.2024.05.004

论著

白果内酯对小鼠肝缺血再灌注损伤保护作用研究
唐亦骁1, 陈峻1, 连正星1, 胡海涛1, 鲁迪2,3,4, 徐骁2,3,4, 卫强1,2,3,4,()   
  1. 1.310006 杭州,浙江中医药大学第四临床医学院
    2.310014 杭州,浙江省人民医院肝胆胰外科,微创外科
    3.310053 杭州,杭州医学院临床医学院
    4.310003 杭州,浙江大学器官移植研究所
  • 收稿日期:2024-03-11 出版日期:2024-10-25
  • 通信作者: 卫强
  • 基金资助:
    浙江省医药卫生科技计划-省部共建重点项目(WKJ-ZJ-2120)浙江省科技厅“尖兵”“领雁”研发攻关计划(2022C03108)国家重点研发计划(2021YFA1100500)

Study on the protective effect of bilobalide on hepatic ischemia-reperfusion injury in mice

Yixiao Tang1, Jun Chen1, Zhengxing Lian1, HaiTao Hu1, Di Lu2,3,4, Xiao Xu2,3,4, Qiang Wei1,2,3,4,()   

  1. 1.Fourth School of Clinical Medicine, Zhejiang Chinese Medicine University, Hangzhou 310006, China
    2.Department of Hepatobiliary & Pancreatic Surgery and Minimally Invasive Surgery,Zhejiang Provincial People′s Hospital, Affiliated People′s Hospital, Hangzhou Medical College, Hangzhou 310014, China
    3.School of Clinical Medicine, Hangzhou Medical College, Hangzhou 310053, China
    4.Institute of Organ Transplantation, Zhejiang University, Hangzhou 310003, China
  • Received:2024-03-11 Published:2024-10-25
  • Corresponding author: Qiang Wei
引用本文:

唐亦骁, 陈峻, 连正星, 胡海涛, 鲁迪, 徐骁, 卫强. 白果内酯对小鼠肝缺血再灌注损伤保护作用研究[J/OL]. 中华移植杂志(电子版), 2024, 18(05): 278-282.

Yixiao Tang, Jun Chen, Zhengxing Lian, HaiTao Hu, Di Lu, Xiao Xu, Qiang Wei. Study on the protective effect of bilobalide on hepatic ischemia-reperfusion injury in mice[J/OL]. Chinese Journal of Transplantation(Electronic Edition), 2024, 18(05): 278-282.

目的

观察白果内酯对肝缺血再灌注损伤(HIRI)小鼠肝脏的保护作用并探讨其机制。

方法

按随机数字表法将40只雄性C57BL/6小鼠分为4组:假手术组、HIRI组、HIRI+白果内酯组(HIRI+BB组)和HIRI+N-乙酰半胱氨酸组(HIRI+NAC组),每组各10只。通过使用无损伤血管夹阻断小鼠入肝血流90 min后松开血管夹使肝血流复灌6 h的方法,建立小鼠HIRI模型。检测小鼠外周血ALT、AST浓度,HE染色观察肝脏病理变化,TUNEL法评估肝细胞凋亡,免疫荧光染色检测肝组织中性粒细胞、巨噬细胞浸润及cleaved caspase-3表达,用ELISA试剂盒检测肝组织中TNF-α、IL-1β表达。组间比较采用单因素方差分析,并用Duncan法进行两两比较。P<0.05为差异具有统计学意义。

结果

HIRI+BB组小鼠血清ALT、AST分别为(455.0±64.1)和(508.3±72.7)U/L,均低于HIRI组[(8 658.5±334.6)和(5 708.1±357.7)U/L],差异均有统计学意义(P均<0.05)。HE染色后HIRI+BB组小鼠肝组织Suzuki评分低于HIRI组、HIRI+NAC组[(3.7±0.3)、(7.5±0.7)和(5.9±0.4)分],差异均有统计学意义(P均<0.05)。此外,HIRI+BB组与HIRI组相比,每400倍镜视野下中性粒细胞[(61.4±5.3)和(166.0±32.2)个]、巨噬细胞[(198.0±10.7)和(305.4±20.3)个]在肝组织中浸润更少,差异均有统计学意义(P均<0.05)。HIRI+BB组较HIRI组TNF-α[(12 190.4±1 424.2)和(25 283.1±2 596.6)pg/mL]、IL-1β[(13 275.8±1 764.1)和(32 526.3±4 777.8)pg/mL]炎症因子表达更少,差异均有统计学意义(P<0.05)。TUNEL法显示每200倍镜视野下HIRI+BB组小鼠肝细胞内肝细胞凋亡较HIRI组减少[(2.5±0.4)和(259.7±9.2)个],差异有统计学意义(P<0.05)。

结论

白果内酯通过减少细胞凋亡和抑制炎症反应减轻小鼠HIRI。

Objective

To investigate the protective effect of resveratrol on the liver in mice subjected to hepatic ischemia-reperfusion injury (HIRI) and elucidate its mechanism.

Methods

Forty male C57BL/6 mice were randomly divided into four groups (10 mice per group) by random number table method:Sham group, HIRI group, HIRI+bilobalide group (HIRI+BB group), and HIRI+N-acetylcysteine group (HIRI+NAC group). The HIRI mice model was established by clamping the portal vein to block hepatic blood flow for 90 min and then reperfusing the liver for 6 h after releasing the clamp. Serum ALT and AST levels were measured, liver pathology was observed using HE staining,liver cell apoptosis was assessed by TUNEL assay, neutrophil and macrophage infiltration as well as cleaved caspase-3 expression in liver tissue were detected by immunofluorescence, and TNF-α and IL-1β levels in liver tissue were measured using ELISA kits. One-way ANOVA was used for comparison among groups, and Duncan's test was applied for pairwise comparisons. P<0.05 was considered statistically significant.

Results

The serum ALT and AST levels in the HIRI+BB group were (455.0±64.1) and (508.3±72.7) U/L, respectively, both of which were significantly lower than those in the HIRI group [(8 658.5±334.6) and (5 708.1±357.7)U/L, respectively)], with statistically significant differences (all P<0.05). HE staining showed that the Suzuki score of liver tissue in the HIRI+BB group was lower than that in the HIRI group [(3.7±0.3) and (7.5±0.7) points, P<0.05], and it was also lower than that in the HIRI+NAC group [(3.7±0.3) and (5.9±0.4) points, P<0.05]. Additionally, compared with the HIRI group, the infiltration of neutrophils and macrophages in the liver tissue of the HIRI+BB group was significantly reduced under a 400×microscope field [(61.4±5.3) and (166.0±32.2), (198.0±10.7) and (305.4±20.3) respectively, all P<0.05]. Moreover, the expression of inflammatory factors TNF-α and IL-1β in the HIRI+BB group were significantly lower than in the HIRI group [(12 190.4±1 424.2) and (25 283.1±2 596.6) pg/mL, (13 275.8±1 764.1) and (32 526.3±4 777.8) pg/mL, all P<0.05].TUNEL assay revealed that the number of apoptotic liver cells in the HIRI+BB group was significantly lower than in the HIRI group under a 200× microscope field [(2.5±0.4) and (259.7±9.2), P<0.05].

Conclusion

Bilobalide mitigates HIRI by reducing cell apoptosis and inhibiting the inflammatory response.

表1 Suzuki标准评分表
表2 各组小鼠血清肝功能结果(U/L,
图1 各组小鼠肝组织HE染色结果(×40,×200) 注:HIRI. 肝缺血再灌注损伤;BB. 白果内酯;NAC. N-乙酰半胱氨酸;黑色箭头示炎性细胞浸润,绿色箭头示坏死的肝细胞,黄色箭头示肝血窦淤血
表3 各组小鼠肝组织Suzuki标准评分(分,
图2 各组小鼠肝组织TUNEL染色结果(×40,×200) 注:HIRI. 肝缺血再灌注损伤; BB. 白果内酯; NAC. N-乙酰半胱氨酸
图3 各组小鼠肝组织cleaved-caspase 3表达水平(×400)
表4 各组小鼠肝细胞凋亡结果(个,
图4 各组小鼠肝组织Ly6G染色中性粒细胞浸润水平(×400)
图5 各组小鼠肝组织F4/80染色巨噬细胞浸润水平(×400)
表5 各组小鼠肝组织炎症因子表达结果(pg/mL,
表6 各组小鼠肝组织炎性细胞浸润结果(个,
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