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落新妇苷对慢性肾功能衰竭大鼠肾损伤的影响及机制
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高晓卫 ,刘迎迎 ,韩 聪 ,郝世飞(1.山东中医药大学附属医院急诊科,济南 250011;2.山东中医药大学
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附属医院肾病科,济南 250011;3.山西省人民医院康复医学科,太原 030012)
中图分类号 R965;R692.5 文献标志码 A 文章编号 1001-0408(2025)04-0434-06
DOI 10.6039/j.issn.1001-0408.2025.04.08
摘 要 目的 基于Jagged-1/Notch-1信号通路探讨落新妇苷(AST)对慢性肾功能衰竭(CRF)大鼠肾损伤的影响及潜在机制。方法
以 5/6 肾切除术法构建 CRF 模型,并将造模成功的大鼠随机分为模型组(Model 组)、AST 低剂量组(AST-L 组)、AST 高剂量组
(AST-H 组)、AST 高剂量+Notch 通路激活剂(Jagged1/FC 嵌合蛋白,简称“JFC”)组(AST-H+JFC 组),另设开腹不切除的对照组
(CK 组),每组 10 只。AST-L 组和 AST-H 组大鼠分别灌胃 40、80 mg/kg 的 AST,AST-H+JFC 组大鼠同时灌胃 80 mg/kg 的 AST 和
0.5 mg/kg 的 JFC,CK 组和 Model 组大鼠灌胃等体积生理盐水,每天 1 次,连续 4 周。末次给药后,检测各组大鼠血清尿素氮
(BUN)、血清肌酐(SCr)、24 h尿液尿蛋白(UP)水平以及血清乳酸脱氢酶(LDH)、肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、
IL-10水平;观察其肾组织形态和纤维化情况,检测肾组织线粒体中腺苷三磷酸(ATP)含量和钠钾ATP酶、钙镁ATP酶活性,以及
肾组织中转化生长因子 β(TGF-β)、低氧诱导因子 1α(HIF-1α)、α-平滑肌肌动蛋白(α-SMA)、切割型胱天蛋白酶 3(cleaved-
caspase-3)、Jagged-1、Notch-1 蛋白的表达水平。结果 与 CK 组比较,Model 组大鼠肾组织损伤明显,肾组织纤维化严重;其血清
BUN、SCr和尿液UP水平,血清LDH、TNF-α、IL-6水平,以及肾组织中TGF-β、HIF-1α、α-SMA、cleaved-caspase-3、Jagged-1、Notch-
1 蛋白的表达水平均显著升高,血清 IL-10 水平以及肾组织线粒体中 ATP 含量和钠钾 ATP 酶、钙镁 ATP 酶活性均显著降低(P<
0.05)。与Model组比较,AST各剂量组大鼠肾组织损伤和纤维化均有所减轻;其血清BUN、SCr和尿液UP水平,血清LDH、TNF-
α、IL-6水平,以及肾组织中TGF-β、HIF-1α、α-SMA、cleaved-caspase-3、Jagged-1、Notch-1蛋白的表达水平均显著降低,血清IL-10
水平以及肾组织线粒体中 ATP 含量和钠钾 ATP 酶、钙镁 ATP 酶活性均显著升高,且 AST-H 组上述指标的变化较 AST-L 组明显
(P<0.05)。JFC可显著逆转高剂量AST对CRF大鼠肾损伤的改善作用(P<0.05)。结论 AST可减轻CRF大鼠炎症、肾组织损伤
和纤维化,改善肾组织线粒体能量代谢,上述作用可能与抑制Jagged-1/Notch-1信号通路有关。
关键词 落新妇苷;慢性肾功能衰竭;肾损伤;肾纤维化;Jagged-1/Notch-1信号通路
Effects and mechanism of astilbin on renal injury in chronic renal failure rats
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GAO Xiaowei ,LIU Yingying ,HAN Cong ,HAO Shifei(1. Dept. of Emergency, the Affiliated Hospital of
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Shandong University of Traditional Chinese Medicine, Jinan 250011, China;2. Dept. of Nephrology, the
Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, China; 3. Dept. of
Rehabilitation Medicine, Shanxi Provincial People’s Hospital, Taiyuan 030012, China)
ABSTRACT OBJECTIVE To investigate the effect and potential mechanism of astilbin (AST) on renal injury in chronic renal
failure (CRF) rats based on the Jagged-1/Notch-1 signaling pathway. METHODS CRF model was constructed by 5/6 nephrotomy.
The successfully modeled rats were randomly separated into Model group, AST low-dose group (AST-L group), AST high-dose
group (AST-H group), high-dose of AST+Notch pathway activator (Jagged-1/FC chimerin, referred to as “JFC”) group (AST-H+
JFC group), and control group (CK group) for open surgery without resection was set up, with 10 rats in each group. The rats in
the AST-L group and AST-H group were given 40 and 80 mg/kg AST, respectively; the rats in the AST-H+JFC group were
simultaneously given 80 mg/kg AST and 0.5 mg/kg JFC, and the rats in the CK group and Model group were given an equal
volume of normal saline, once a day, for 4 weeks. After the last administration, the serum levels of blood urea nitrogen (BUN),
serum creatinine (SCr), and the level of 24 h urinary protein (UP) in urine, as well as the serum levels of lactate dehydrogenase
(LDH), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-10 in each group were detected. The morphology and
fibrosis of renal tissue were observed. The content of adenosine triphosphate (ATP) and the activities of sodium-potassium ATPase
and calcium-magnesium ATPase in mitochondria of renal tissue were detected. The protein expressions of transforming growth
factor- β (TGF- β), hypoxia-inducible factor-1α (HIF-1α),
Δ 基金项目 山 东 省 医 药 卫 生 科 技 发 展 计 划 项 目(No. α-smooth muscle actin (α-SMA), cleaved-caspase-3, Jagged-
2019WS578) 1 and Notch-1 in renal tissue were also observed. RESULTS
*第一作者 主治医师,硕士。研究方向:中医内科学、中医药治疗
Compared with CK group, the renal tissue of rats in the
肾系疾病。E-mail:gxw1981g@163.com
# 通信作者 副主任医师,硕士。研究方向:中医药治疗肾系疾病。 Model group was obviously damaged, renal tissue fibrosis was
E-mail:w06mwu@163.com severe; the serum BUN and SCr levels, urine UP level, serum
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