实用医学杂志 ›› 2025, Vol. 41 ›› Issue (11): 1627-1636.doi: 10.3969/j.issn.1006-5725.2025.11.004

• 基础研究 • 上一篇    

6-姜酚对心肾综合征大鼠心肾功能的影响

邓婷1,2,傅强3,李志樑3,褚庆民1,2,周小雄1,2()   

  1. 1.广州中医药大学第一附属医院心内科 (广东 广州 510006 )
    2.广东省中医临床研究院 (广东 广州 510006 )
    3.深圳大学附属华南医院心内科 (广东 深圳 518110 )
  • 收稿日期:2025-03-28 出版日期:2025-06-10 发布日期:2025-06-19
  • 通讯作者: 周小雄 E-mail:15918737859@163.com
  • 基金资助:
    广东省中医药局项目(20221143);国家中医药传承创新中心科研专项(2022QN04)

Study on the improvement of cardiac and renal function in rats with cardiorenal syndrome by inhibiting fibrosis with 6-gingerol

Ting DENG1,2,Qiang FU3,Zhiliang LI3,Qingmin CHU1,2,Xiaoxiong. ZHOU1,2()   

  1. *.Department of Cardiology,First Affiliated Hospital of Guangzhou University of Chinese Medicine,Guangzhou 510006,Guangdong,China
    *.Guangdong Clinical Research Academy of Chinese Medicine,Guangzhou 510006,Guangdong,China
  • Received:2025-03-28 Online:2025-06-10 Published:2025-06-19
  • Contact: Xiaoxiong. ZHOU E-mail:15918737859@163.com

摘要:

目的 评估6-姜酚(6-gingerol)抑制纤维化改善心肾综合征大鼠心脏、肾脏功能。 方法 本研究体外实验中,使用同位素标记氨基酸掺入法检测6-姜酚干预大鼠肾脏49F、52E(NRK-49F、NRK-52E)细胞。在体实验将68只200~250 g雄性SD大鼠通过冠状动脉左前降支结扎联合5/6肾次全切除术构建心肾综合征大鼠模型,随机分成对照组、模型组、6-姜酚低剂量组(6 mg/kg)、6-姜酚高剂量组(30 mg/kg)及氯沙坦钾组(20 mg/kg)。6-姜酚组腹腔注射6-姜酚,对照组和模型组给予腹腔注射等量生理盐水,氯沙坦钾组给予灌胃氯沙坦钾共6周。造模成功后取血液行生化、心脏超声等检查,试验结束后取血液、心脏及肾脏行Masson、免疫组化及Western blot等。 结果 6-姜酚20 μmol/L能减少NRK-49F胶原合成和抑制NRK-52E蛋白合成。生化结果显示低、高剂量6-姜酚组及氯沙坦组大鼠的血清肌酐,尿素氮和脑利钠肽(BNP)水平均降低,6-姜酚高剂量组、氯沙坦组大鼠最为显著(P < 0.05)。超声心动图参数显示,6-姜酚组及氯沙坦钾组大鼠改善了心脏收缩功能和心室重构(P < 0.05)。Masson染色和Western-Blot显示肾脏胶原沉积,胶原蛋白I和α-SMA的表达减少(P < 0.05)。免疫荧光提示肾脏胶原沉积I、α-SMA及TGF-β1的表达减少(P < 0.05)。 结论 6-姜酚可通过抑制肾脏纤维化改善心肾综合征大鼠心肾功能。

关键词: 6-姜酚, 心肾综合征, 纤维化, 心功能, 肾功能

Abstract:

Objective To evaluate whether 6-gingerol(6G)can inhibit fibrosis and improve the cardiac and renal function and in rats with cardiorenal syndrome. Methods In the in vitro experiments of this study, the incorporation of isotope-labeled amino acids was used to detect the intervention of 6-gingerol on normal rat kidney-49F (NRK-49F) and normal rat kidney-52E (NRK-52E) cells. 68 male SD rats weighing 200 ~ 250 g were used to establish a rat model of cardiorenal syndrome by ligating the left anterior descending coronary artery and performing 5/6 nephrectomy. The rats were randomly divided into a control group, a model group, a low dose 6-gingerol group (6 mg/kg), a high dose 6-gingerol group (30 mg/kg), and a losartan potassium group (20 mg/kg). The 6-gingerol group received intraperitoneal injection of 6-gingerol, while the control group and model group received intraperitoneal injection of an equal amount of physiological saline. The losartan group received oral administration of losartan potassium for a total of 6 weeks. After successful modeling, blood samples were taken for biochemical and cardiac ultrasound examinations. After the experiment, blood, heart, and kidney samples were taken for Masson, immunohistochemistry, and Western blot. Results 6-gingerol 20 μmol/L can reduce NRK-49F collagen synthesis and inhibit NRK-52E protein synthesis. Biochemical results showed that the serum creatinine, urea nitrogen, and brain natriuretic peptide (BNP) levels of rats in the low and high dose 6-gingerol groups and the losartan group were all reduced, with high dose 6-gingerol groups and losartan group showing the most significant decrease (P < 0.05). Echocardiographic parameters showed that the 6-gingerol group and losartan potassium group improved cardiac contractile function and ventricular remodeling in rats (P < 0.05). Masson staining and Western Blot showed renal collagen deposition, with reduced expression of collagen I and α-SMA (P < 0.05). Immunofluorescence showed a decrease in the expression of renal collagen deposition I, α-SMA, and TGF-β1 (P < 0.05). Conclusion 6-Gingerol may improve the cardiac and renal function and renal fibrosis in rats with cardiorenal syndrome.

Key words: 6?gingerol, cardiorenal syndrome, fibrosis, cardiac function, renal function

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