1.中山大学附属第一医院麻醉科,广东 广州 510080
2.中山大学附属第一医院病理科,广东 广州 510080
3.南方医科大学第三附属医院麻醉科,广东 广州 510630
周芹,主治医师,E-mail:jasminezhouqin@126.com
收稿:2021-03-22,
纸质出版:2021-07-20
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周芹,宋艳,李金河等.柚皮素通过诱导血红素加氧酶-1的表达抑制氧化应激和血管钙化[J].中山大学学报(医学科学版),2021,42(04):528-534.
ZHOU Qin,SONG Yan,LI Jin-he,et al.Naringenin Inhibits Oxidative Stress and Vascular Calcificationby Up-regulating Heme Oxygenase-1 Expression[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(04):528-534.
周芹,宋艳,李金河等.柚皮素通过诱导血红素加氧酶-1的表达抑制氧化应激和血管钙化[J].中山大学学报(医学科学版),2021,42(04):528-534. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0407.
ZHOU Qin,SONG Yan,LI Jin-he,et al.Naringenin Inhibits Oxidative Stress and Vascular Calcificationby Up-regulating Heme Oxygenase-1 Expression[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(04):528-534. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0407.
目的
2
研究柚皮素对血管钙化发生的作用及氧化应激机制。
方法
2
采用不同浓度的柚皮素(5、 10、 20 μmol/L)处理大鼠血管平滑肌细胞和血管环,研究柚皮素对高磷高钙诱导的血管平滑肌细胞和血管环钙化程度的影响。用茜素红染色法测定细胞和血管环钙化的程度,荧光探针DHE检测活性氧(ROS)水平,qPCR和western blot检测血红素加氧酶-1(HO-1)的表达水平。采用HO-1抑制剂ZnPP9处理血管平滑肌细胞,研究抑制HO-1对平滑肌细胞钙化的影响。
结果
2
柚皮素能明显减轻高磷高钙诱导的血管平滑肌细胞和血管环钙化。此外,柚皮素可明显上调HO-1的表达水平,降低ROS的水平;ZnPP9能阻断柚皮素对血管平滑肌细胞钙化的抑制作用。
结论
2
柚皮素可通过上调HO-1的表达水平,降低ROS的水平和抑制高磷高钙诱导的血管钙化。
Objective
2
To investigate the role of naringenin (NRG) in oxidative stress and vascular calcification and to find out the underlying mechanisms.
Methods
2
Different concentrations of NRG (5, 10, 20 μmol/L) was used to treat rat vascular smooth muscle cells (VSMCs) and vascular rings with high calcium and phosphate-induced calcification. The calcification degree was evaluated by alizarin red staining. Reactive oxygen species (ROS) levels were assessed by dihydroethidium (DHE) fluorescence staining. Heme oxygenase-1 (HO-1) expression was determined by qPCR and western blot. We used HO-1 inhibitor ZnPP9 to treat rat VSMCs and confirmed the effect of HO-1 on calcification of VSMCs.
Results
2
NRG significantly ameliorated high calcium and phosphate-induced calcification of rat VSMCs and vascular rings in association with up-regulation of HO-1 expression and down-regulation of ROS levels. ZnPP9 blocked the inhibitory effect of NRG on VSMC calcification.
Conclusion
2
NRG inhibits oxidative stress and high calcium and phosphate-induced vascular calcification by up-regulating HO-1 expression.
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