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槲皮素对心肾综合征大鼠心肾功能的保护作用及机制
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          孔露娇 ,鲁 华 ,王 心,李 帅,刘 静,郭晓阳(邢台市人民医院肾内科,河北 邢台 054000)
                *
                          #
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2024)13-1612-06
          DOI  10.6039/j.issn.1001-0408.2024.13.12


          摘   要  目的  基于磷脂酰肌醇3激酶(PI3K)/蛋白激酶B(Akt)/核因子κB(NF-κB)信号通路探讨槲皮素对心肾综合征(CRS)大
          鼠心肾功能的保护作用及机制。方法  取SD大鼠,采用左冠状动脉前降支结扎结合肾急性缺血再灌注的方法构建CRS模型,将
          造模成功的大鼠随机分为模型组、槲皮素低剂量组(35 mg/kg)、槲皮素高剂量组(70 mg/kg)、槲皮素高剂量+740Y-P组(70 mg/kg
          槲皮素+3.5 mg/kg PI3K/Akt/NF-κB信号通路激活剂740Y-P),每组12只;另取12只正常大鼠设为假手术组。每天给药1次,连续
          14 d。给药结束后,检测大鼠心功能指标[左心室射血分数(LVEF)、舒张末期容积(EDV)、等容舒张时间(IVRT)]与肾功能指标[血
          尿素氮(BUN)、血肌酐(Scr)、24 h尿蛋白];观察大鼠心肾组织纤维化情况;检测大鼠血清与心肾组织中炎症指标[白细胞介素1β
         (IL-1β)、肿瘤坏死因子α(TNF-α)]水平及心肾组织中PI3K/Akt/NF-κB信号通路相关蛋白表达。结果  与假手术组比较,模型组大
          鼠 BUN、24 h 尿蛋白、Scr 水平,心肾组织的胶原容积分数,血清与心肾组织中 IL-1β、TNF-α 水平,心肾组织中 PI3K、Akt、NF-κB
          p65蛋白磷酸化水平均显著升高(P<0.05),LVEF、IVRT、EDV均显著降低(P<0.05)。与模型组比较,槲皮素低、高剂量组大鼠上
          述指标均显著改善(P<0.05),且高剂量组的改善效果更好(P<0.05)。740Y-P 逆转了高剂量槲皮素对各指标的改善作用(P<
          0.05)。结论  槲皮素可减轻CRS大鼠心肾纤维化和功能损伤,其作用机制可能与抑制PI3K/Akt/NF-κB信号通路激活有关。
          关键词  槲皮素;PI3K/Akt/NF-κB信号通路;心肾综合征;心肾功能;纤维化

          Protective  effect  and  mechanism  of  quercetin  on  cardiac  and  renal  functions  in  rats  with  cardiorenal
          syndrome
          KONG Lujiao,LU Hua,WANG Xin,LI Shuai,LIU Jing,GUO Xiaoyang(Dept. of Nephrology, Xingtai People’s
          Hospital, Hebei Xingtai 054000, China)

          ABSTRACT    OBJECTIVE  To investigate the protective effect and mechanism of quercetin on the cardiac and renal functions of
          rats with cardiorenal syndrome (CRS) based on the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/nuclear factor kappa-
          B (NF-κB) signaling pathway. METHODS CRS model of SD rats was induced by left anterior descending coronary artery ligation
          combined  with  acute  renal  ischemia-reperfusion.  Model  rats  were  randomly  separated  into  model  group,  quercetin  low-dose  group
         (35 mg/kg), quercetin high-dose group (70 mg/kg), high-dose of quercetin+740Y-P group (70 mg/kg quercetin+3.5 mg/kg PI3K/Akt/
          NF-κB  signaling  pathway  activator  740Y-P),  with  12  rats  in  each  group. Another  12  normal  rats  were  selected  as  sham  operation
          group. They were given relevant drugs, once a day, for 14 consecutive days. After administration, the cardiac function indexes [left
          ventricular  ejection  fraction (LVEF),  end-diastolic  volume (EDV),  isovolumic  relaxation  time (IVRT)]  and  renal  function
          indicators  [blood  urea  nitrogen (BUN),  24-hour  urine  protein,  and  serum  creatinine (Scr)]  were  detected,  and  fibrosis  in  the
          cardiac  and  renal  tissues  was  observed;  the  levels  of  inflammatory  indexes  [interleukin-1β (IL-1β)  and  tumor  necrosis  factor-α
         (TNF-α)] in the serum and cardiac and renal tissues as well as the expression of PI3K/Akt/NF-κB pathway-related proteins in the
          cardiac and renal tissues were detected. RESULTS Compared with sham operation group, the levels of BUN, 24-hour urine protein
          and  Scr,  collagen  volume  fraction  of  cardiac  and  renal  tissues,  the  levels  of  IL-1β  and  TNF-α  in  serum  and  cardiac  and  renal
          tissues,  and  the  phosphorylation  of  PI3K, Akt  and  NF-κB  p65  protein  in  cardiac  and  renal  tissues  were  increased  significantly  in
          model  group (P<0.05);  the  levels  of  LVEF,  IVRT  and  EDV  were  reduced  significantly (P<0.05).  Compared  with  the  model
          group, the above indexes were reversed significantly in quercetin low-dose and high-dose groups (P<0.05), and the reversal effect
          was  better  in  the  high-dose  group (P<0.05).  740Y-P  restored  the  reverse  effect  of  high-dose  quercetin  on  the  indexes (P<0.05).

                                                              CONCLUSIONS  Quercetin  can  alleviate  cardiac  and  renal
              Δ 基金项目 河北省 2023 年度医学科学研究课题计划项目(No.              fibrosis  and  function  injury,  the  mechanism  of  which  may  be
          20232016)                                           associated with inhibiting the activation of the PI3K/Akt/NF-
             *第一作者 主治医师,硕士。研究方向:心肾综合征的诊治及基
                                                              κB signaling pathway.
          础研究。E-mail:448626740@qq.com
              # 通信作者 主任医师,博士。研究方向:各种急慢性肾脏疾病的                  KEYWORDS    quercetin;  PI3K/Akt/NF-κB  signaling  pathway;
          诊治。E-mail:31612677@qq.com                           cardiorenal syndrome; cardiac and renal function; fibrosis


          · 1612 ·    China Pharmacy  2024 Vol. 35  No. 13                            中国药房  2024年第35卷第13期
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