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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 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
主治医师,硕士。研究方向:中医内科学、中医药治疗肾系疾病。E-mail:gxw1981g@163.com
副主任医师,硕士。研究方向:中医药治疗肾系疾病。E-mail:w06mwu@163.com
收稿日期:2024-06-20,
修回日期:2024-11-04,
录用日期:2025-01-02,
纸质出版日期:2025-02-28
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高晓卫,刘迎迎,韩聪,等.落新妇苷对慢性肾功能衰竭大鼠肾损伤的影响及机制[J].中国药房,2025,36(04):434-439.
GAO Xiaowei,LIU Yingying,HAN Cong,et al.Effects and mechanism of astilbin on renal injury in chronic renal failure rats[J].ZHONGGUO YAOFANG,2025,36(04):434-439.
高晓卫,刘迎迎,韩聪,等.落新妇苷对慢性肾功能衰竭大鼠肾损伤的影响及机制[J].中国药房,2025,36(04):434-439. DOI: 10.6039/j.issn.1001-0408.2025.04.08.
GAO Xiaowei,LIU Yingying,HAN Cong,et al.Effects and mechanism of astilbin on renal injury in chronic renal failure rats[J].ZHONGGUO YAOFANG,2025,36(04):434-439. DOI: 10.6039/j.issn.1001-0408.2025.04.08.
目的
2
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
2
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-1
α)、
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
2
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
2
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。
OBJECTIVE
2
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
2
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),
α
-smooth muscle actin (
α
-SMA), cleaved-caspase-3, Jagged-1 and Notch-1 in renal tissue were also observed.
RESULTS
2
Compared with CK group, the renal tissue of rats in the Model group was obviously damaged, renal tissue fibrosis was severe; the serum BUN and SCr levels, urine UP level, serum LDH, TNF-α and IL-6 levels, as well as the protein expressions of TGF-β, HIF-1α,
α
-SMA, cleaved-caspase-3, Jagged-1 and Notch-1 in renal tissue were significantly increased, while the serum IL-10 level, ATP content and activities of sodium-potassium ATPase and calcium-magnesium ATPase in mitochondria of renal tissue were significantly decreased (
P
<0.05). Compared with Model group, the renal tissue damage and fibrosis in the AST groups were reduced, the serum BUN and SCr levels, urine UP level, serum LDH, TNF-α and IL-6 levels, and the protein expressions of TGF-β, HIF-1α,
α
-SMA, cleaved-caspase-3, Jagged-1 and Notch-1 were significantly decreased, while the serum IL-10 level, ATP content and the activities of sodium-potassium ATPase and calcium-magnesium ATPase in mitochondria were significantly increased; the changes in the aforementioned indicators in AST-H group were more significant than those in the AST-L group(
P
<0.05). JFC could significantly reverse the improvement effect of high dose of AST on renal injury in CRF rats (
P
<0.05).
CONCLUSIONS
2
AST can reduce inflammation in CRF rats, alleviate renal tissue damage and fibrosis, and improve renal mitochondrial capacity metabolism, possibly by inhibiting the Jagged-1/Notch-1 signaling pathway.
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