APP下载

清血消脂方调节脂肪酸结合蛋白4和过氧化物酶增殖物激活受体表达对动脉粥样硬化小鼠的干预作用

2021-06-24康群甫周明学张蕾刘红旭刘卫红

世界中医药 2021年4期
关键词:小鼠血清

康群甫 周明学 张蕾 刘红旭 刘卫红

摘要 目的:探討清血消脂方调节脂肪酸结合蛋白4(FABP4)和过氧化物酶增殖物激活受体(PPAR)表达对动脉粥样硬化小鼠的干预作用。方法:选取45只ApoE-/-小鼠经高脂喂养9周后,随机分为模型组(n=15)、立普妥(阿托伐他汀钙)组(n=15)、清血消脂方组(n=15);继续高脂喂养并药物干预9周后,测其血脂及血清同型半胱氨酸水平,主动脉斑块面积与斑块中胶原纤维含量;同时,测定FABP4、PPARα与PPARγ在肝脏及主动脉中mRNA及蛋白表达水平。结果:与模型组比较,清血消脂方可显著降低血清三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)与血清同型半胱氨酸(Hcy)水平,差异有统计学意义(P<0.05),且明显缩小主动脉斑块相对面积,差异有统计学意义(P<0.05)。清血消脂方显著降低主动脉中FABP4的mRNA及蛋白表达(P<0.05),并促进PPARγ mRNA及蛋白表达,差异有统计学意义(P<0.05);同时,清血消脂方可显著降低肝脏中FABP4的蛋白表达,并促进PPARγ的蛋白表达,差异有统计学意义(P<0.05)。结论:清血消脂方对动脉粥样硬化具有一定的防治作用,其机制可能与显著降低主动脉与肝脏中FABP4的mRNA及蛋白表达,并促进PPARγ的表达有关。

关键词 动脉粥样硬化;清血消脂方;脂肪酸结合蛋白4;过氧化物酶增殖物激活受体-α;过氧化物酶增殖物激活受体-γ;ApoE基因敲除小鼠;同型半胱氨酸;中医药

Qingxue Xiaozhi Formula on Atherosclerosis Intervention in Mice by Regulating the Expression of FABP4 and PPARs

KANG Qunfu1,2,ZHOU Mingxue2,ZHANG Lei2,LIU Hongxu3,LIU Weihong2

(1 Cardiovascular Department,Shunyi Hospital,Beijing Traditional Chinese Medicine Hospital,Beijing 101300,China; 2 Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University/Beijing Institute of Traditional Chinese Medicine, Beijing 100010,China; 3 Cardiovascular Department,Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing 100010,China)

Abstract Objective:To explore the therapeutic mechanism of Qingxue Xiaozhi Formula(QXXZ) on atherosclerosis mice model via inhibiting FABP4 and promoting PPARγ in the aorta and liver.Methods:A total of 45 ApoE-knockout (ApoE-/-) mice fed with high-fat diet for 9 weeks were randomly divided into a model group (n=15),a Lipitor group (n=15) and a QXXZ group(n=15).For an additional 9 weeks with high-fat diet and drug intervention,blood lipids and homocysteine (Hcy) in serum,plaque areas in aorta,and collagen fibers in plaques were determined.The mRNA and protein expression levels of FABP4,PPARα and PPARγ in the liver and aorta were measured.Results:1) QXXZ significantly decreased the TGs,LDL-C and Hcy levels compared with the model group.And it significantly reduced the relative area of aortic plaque (P<0.05) 2) QXXZ significantly reduced FABP4 protein expression levels in the aorta (P<0.05),and promoted PPARγ mRNA and protein expression levels (P<0.05); at the same time,QXXZ can significantly reduce FABP4 protein expression levels in the liver and promote the protein expression of PPARγ (P<0.05).Conclusion:QXXZ has a certain preventive effect on atherosclerosis,and its mechanism may be related to significantly reducing the mRNA and protein expression levels of FABP4 in the aorta and liver,and promoting the expression of PPARγ.

Keywords Atherosclerosis; Qingxue Xiaozhi Formula; Fatty acid binding protein 4 (FABP4); Peroxisome proliferator-activated receptor-α (PPARα); Peroxisome proliferator-activated receptor-γ (PPARγ); Peroxidase proliferator activated receptor-γ; ApoE-knockout mic; Homocysteine,Traditional Chinese Medicine (TCM)

中图分类号:R285.5;R541文献标识码:Adoi:10.3969/j.issn.1673-7202.2021.04.010

动脉粥样硬化是包括冠心病、心力衰竭等多数心血管疾病的重要病理基础。据统计,在我国每5例死亡患者中便有2例死于心血管疾病[1]。在心血管疾病整个病程中,脂代谢紊乱均发挥着重要作用[2];同时,同型半胱氨酸作为心血管疾病独立危险因素,在血管内皮细胞损伤、血管平滑肌细胞增殖以及抑制血管再生方面起着重要作用[3-5]。脂肪酸结合蛋白4(FABP4)与脂代谢过程中的胆固醇的代谢、转运与储存具有密切关系;FABP4在巨噬细胞内的高表达会增加胆固醇在巨噬细胞内的聚集,而当敲除FABP4基因时,则会促进巨噬细胞内胆固醇流出[6-8]。过氧……

登录APP查看全文

猜你喜欢

小鼠血清
爱捣蛋的风
血清免疫球蛋白测定的临床意义
慢性肾脏病患者血清HIF-1α的表达及临床意义
慢性鼻-鼻窦炎患者血清IgE、IL-5及HMGB1的表达及其临床意义
血清IL-6、APC、CRP在脓毒症患者中的表达及临床意义
血清HBV前基因组RNA的研究进展
小鼠大脑中的“冬眠开关”
米小鼠和它的伙伴们
加味四逆汤对Con A肝损伤小鼠细胞凋亡的保护作用
血清β32-MG,Cys-C及U-mALB在高血压肾损伤中的应用