從對HDL亞型分布及功能的影響探討芎芍膠囊抗動脈粥樣硬化的作用機制
[Abstract]:Atherosclerosis is the pathological basis of various cardiovascular and cerebrovascular diseases. The pathogenesis of atherosclerosis is mainly lipid metabolism, inflammatory reaction, endothelial injury, oxidative stress, etc. High density lipoprotein (HDL) can pass cholesterol reverse transport (Reverse cholesterol transport, RCT), anti-inflammatory, antioxidant, Antithrombotic, anti apoptotic and diastolic blood vessels to protect blood vessels and anti atherosclerotic functions. The latest research has found that the level of HDL alone does not reflect its anti atherosclerotic function, and the function of HDL is closely related to the subtypes of subtypes, metabolism, and components of the.HDL, and the components and functions of the subtypes and functions are now becoming the present anti porridge. .ApoA- I, a hot spot in the study of sample sclerosis, is the main component of the protein and structure of HDL, and is also the main bearer of HDL to complete RCT, anti endothelial cell apoptosis, anti-oxidation, and anti-inflammatory function, the number of.ApoA- I decrease or structural change, the original function of HDL will be weakened or lost, and even the AS action.HDL via pre beta 1-HDL to HDL3 to HDL2. Gradually mature, HDL2, as a large mature HDL subtype, can promote the transport of cholesterol to the liver and the tissue of the synthetic steroid hormone, and the low HDL2 level is negatively related to the risk of coronary heart disease. The adenosine triphosphate binding cassette transporter A1 (ATP-binding cassette transporters A1, ABCA1) can be combined with HDL to promote intracellular cholesterol efflux. The effect of HDL particles formation, participation in RCT, regulating lipid metabolism. In addition, ABCA1 can also inhibit the expression of inflammatory factors and participate in the oxidative stress response in many ways, such as the AS process.B class type I scavenger receptor (Scavenger receptor class B, type I, SR-BI) can selectively absorb cholesterol esters in HDL, transmitted to liver and steroid irrigations The hormone producing tissue, completing RCT, also mediates the cholesterol efflux process of peripheral cells, and participates in the metabolism of many lipoproteins. Myeloperoxidase (MPO) and paroxypase 1 (Paraoxonase 1, PON1) are HDL affecting inflammation, and the associated protein.MPO of oxidative stress can selectively oxidize ApoA- I and weaken or lose the function of HDL. On the contrary, PON1 can directly participate in the hydrolysis of peroxide in lipoprotein to protect HDL from oxidation modification and protect the antioxidant function of HDL. The phosphatidylcholine acyl transferase (Lecithin cholesterol acyltransf erase, LCAT) can esterification the cholesterol, make the cholesterol enter into HDL, and make HDL gradually become rich in the HDL. The mature HDL.LCAT of cholesteryl ester is the key enzyme in the metabolism of HDL. When the function of LCAT is damaged, the synthesis of cholesteryl ester will be inhibited, which leads to hypercholesterolemia. At the same time, the maturation process of HDL will be blocked and the incidence of AS will increase. Loss of health, liver loss, deficiency of kidney essence, and kidney essence deficiency, external causes include diet, emotional disorder, and labor and leisure. On the pathogenesis of the disease, we think that the deficiency of this disease is true, with positive deficiency, wet turbid, phlegm coagulation, blood stasis as the standard, the three dirty function of spleen liver and kidney is the main basis of abnormal blood lipid. Kidney, invigorating the spleen and eliminating food, and activating blood and removing stasis, eliminating phlegm and collaterals as the treatment. It has been proved that many kinds of Chinese medicine monomers, single Chinese medicine and Chinese medicine compound can regulate blood lipid. Many reports suggest that Chinese medicine can improve the level of HDL, but at present, the research on lipid regulating Chinese medicine has not been influenced by the distribution of HDL subtypes to influence its function and has little influence. HDL anti atherosclerotic mechanism of anti atherosclerotic mechanism of traditional Chinese medicine was reported. In the previous experiment, we found that Xiong paehao capsule was effective in anti AS. The serum lipid TC, LDL increased with HDL in AS rabbits, and HDL had heterogeneity, and the elevation of HDL level was not necessarily on the basis of the early study of AS.. In this study, the subtypes, metabolism, components and functions of HDL were further studied. Objective: To explore the possible mechanism of Xiong Shao capsule against AS by setting up the rabbit atherosclerosis model and regulating the lipid metabolism and affecting the distribution and function of the HDL subtype. 1. groups and 60 male New Zealand rabbits were divided into two groups. The machine was divided into 5 groups: blank control group, model group, simvastatin group, Xiong Shao's low dose group, Xiong Shao's high dose group, each 12. The rabbit AS model was established by simple high fat feed feeding method. The method of administration: (1) the blank control group was fed with ordinary feed for 22 weeks; the model group was fed with high fat feed for 14 weeks and then fed with ordinary feed for 8 weeks; 3. The group was fed with high fat diet and simvastatin for 14 weeks, 8 weeks after feeding common feed and simvastatin, the dosage of simvastatin was 2mg/Kg D. 4. The low dose Xiong paehao group was fed with high fat feed and Chinese medicine for 14 weeks, and the ordinary feed and traditional Chinese medicine were fed for 8 weeks. The dose of Chinese medicine was Chuanxiong 1.5g/kg D and Radix Paeoniae 0.75g/kg. D. Feed and traditional Chinese medicine for 14 weeks, 8 weeks after feeding common feed and traditional Chinese medicine, the dose of traditional Chinese medicine was 3.0g/kg D, 1.5g/kg d.2. of Radix Paeoniae Rubra observed the formation of atherosclerotic plaques in the aorta after 22 weekend anesthesia, removed the thoracic aorta, and observed the formation of lipid plaque in the blood tube wall of the main specimens of the aorta. Neutral Faure Marin Young Liquid fixation, routine tissue paraffin section, hematoxylin eosin (HE) staining, microscopically observed histopathological changes of.3. high density lipoprotein and other blood lipids before the experiment, the drug was given 14 weeks, and the drug was given for 22 weeks and 3 time points. After centrifugation, the serum HDL and its component ApoA- I, total cholesterol (TC) were detected by the automatic biochemical analyzer. Low density lipoprotein (LDL), apolipoprotein B (ApoB), triglyceride (TG), extremely low density lipoprotein (VLDL) level.4. high density lipoprotein subtype, serum samples were detected by enzyme linked immunosorbent assay (ELISA), the level of HDL subtype HDL2 in serum was determined by.5. cholesterol reverse transport function test at the end of the experiment, and the liver tissue was frozen in liquid nitrogen. Izol method was used to extract total liver RNA, real-time fluorescent quantitative polymerase chain reaction (real-time PCR) for the determination of liver ABCAl mRNA, the expression of SR-BI mRNA, the antioxidant function of.6. high-density lipoprotein was detected by anisamine method, serum MPO activity was measured by anisamine method. Enzyme linked immunosorbent assay (ELISA) determination of the metabolism of serum PON1 activity high density lipoprotein metabolism The expression of LCAT mRNA in liver was measured by real time fluorescence quantitative polymerase chain reaction (real-time PCR). Results: 1. the aorta wall of rabbits in the blank control group was smooth, endothelial cells were continuous and no lipid deposition was found. The aorta wall of the rabbit model group was covered with lipid plaque, and a large amount of foam cells and smooth muscle layers were visible under the intima. A large amount of lipid deposition was found in the cells, and the lipid plaque on the aortic wall surface of the rabbits was less than that in the model group. Under the microscope, the foam cells of the intima were accumulated less.2. and 14 weeks. Except for the blank control group, the serum TC, TG, HDL, LDL, VLDL, ApoA-I, ApoB of the rabbits in each group were all increased, the difference was statistically significant (P0.05 or P0.01). After 22 weeks of administration, the serum TC, VLDL, and ApoA-I of the rabbits in the experimental group were higher than those in the blank control group. The difference was statistically significant (P0.05 or P0.01) in the model group (P0.05 or P0.01). The serum TC, TG, HDL, LDL, VLDL, ApoA-I, and ApoA-I were higher in the model group than in the blank control group for 14 weeks. There was no significant difference between the drug group and the model group. The serum TC, LDL, VLDL and ApoA-I in the model group were higher than that in the blank control group for 22 weeks. The difference was statistically significant (P0.01). The changes of serum HDL in the administration group were not significantly different from those in the model group; the serum TC, LDL, VLDL were lower in the administration group than the model group, and the ApoA-I was higher than the model group, and the difference was statistically significant. Meaning (P0.05 or P0.01), the serum TC, VLDL and ApoA-I were low in Xiong Shao, there was no significant difference between the high dose group and the simvastatin group for 22 weeks. The serum HDL2 in the model group was higher than that in the blank control group, the difference was statistically significant (P0.05), and the increase of serum HDL2 in the simvastatin group and Xiong Shao high dose group was larger than that in the model group, and the difference was statistically significant. The expression of ABCA1 mRNA in the model group was higher than that in the blank control group (P0.05). The expression of ABCA1 mRNA in the administration group was significantly higher than that in the model group (P0.01). The expression of SR-BI mRNA in the model group was significantly higher than that in the blank control group (P0.01). There was no significant difference in the expression of the SR-BI mRNA expression in the group of the drug groups compared with the model group (P0.05). The expression of ABCA1 mRNA in the model group was significantly higher than that in the model group (P0.01). After 14 weeks of administration, the activity of serum MPO in the model group was significantly higher than that in the blank control group (P0.01). The activity of MPO in each treatment group was lower than that in the model group (P0.05). After 22 weeks of administration, the activity of MPO in the model group was higher than that in the blank control group (P0.05), and the MPO in each group was lower than that in the model group (P0.05). The difference was statistically significant (P0.05). The changes of PON1 activity in rabbit serum were no difference (P0.05).6. administration at the end of 22 weeks. The expression of LCAT mRNA in the model group was significantly higher than that in the blank control group (P0.01). The expression of LCAT mRNA in each group was significantly higher than that in the model group (P0.01). Conclusion: 1. Xiong Shao Shao capsule can inhibit the formation of the aortic plaque in the aorta of AS rabbits, reduce the deposition of lipid on the inner wall of the blood vessels and reduce the bubbles. .2. Xiong Shao capsule can increase the level of ApoA-I in serum of AS rabbit and reduce the level of TC, LDL, VLDL. The regulation of lipid level.3. xiushao capsule can increase the level of HDL2 in the serum of AS rabbit, increase the level of HDL mature subtype, and influence the HDL subtype distribution of.4. Xiong Shao capsule to increase the expression of liver and promote the liver. Intracellular cholesterol metabolism, promote cholesterol reverse transport, its regulating effect on liver SR-BI mRNA is not obvious,.5. Xiong Shao capsule can reduce the activity of MPO in serum of AS rabbit, inhibit the ApoA-I in HDL, protect the antioxidant function of HDL, and its effect on serum PON1 activity is not obvious,.6. Xiong Shao capsule can up regulate AS rabbit liver LCAT The anti atherosclerosis mechanism of Xiong Shao capsule, the function of HDL, may be related to the mechanism of promoting the maturation of HDL, increasing the level of HDL mature subtype particles and regulating the level of blood lipid. The mechanism of anti atherosclerosis of Xiong paehao capsule of.8. may be related to increasing the expression of RCT related protein gene expression to promote RCT, and may protect the antioxidant function of HDL.
【學(xué)位授予單位】:北京中醫(yī)藥大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2016
【分類號】:R285
【參考文獻】
相關(guān)期刊論文 前10條
1 謝宗愷;高蔚娜;蒲玲玲;韋京豫;張敏;郭長江;;高脂培養(yǎng)條件下槲皮素對大鼠肝細胞膽固醇代謝的影響[J];營養(yǎng)學(xué)報;2016年01期
2 王曉娜;葉平;;高密度脂蛋白膽固醇與動脈粥樣硬化研究進展[J];中華保健醫(yī)學(xué)雜志;2015年06期
3 商亮;曹佳;喻紅;;對氧磷酶1在高密度脂蛋白結(jié)構(gòu)與功能中的意義[J];中國動脈硬化雜志;2015年12期
4 秦樹存;于楊;趙亞南;吳云;;磷脂轉(zhuǎn)運蛋白在高密度脂蛋白代謝和膽固醇逆向轉(zhuǎn)運中的生物學(xué)作用[J];中國動脈硬化雜志;2015年12期
5 羅偉;馬建偉;;原發(fā)性血脂異;颊咧嗅t(yī)體質(zhì)類型與中醫(yī)證型相關(guān)性研究[J];解放軍醫(yī)藥雜志;2015年09期
6 林小龍;溫東輝;羅浩元;朱麗明;曾濤;鄧宇偉;;大蒜素通過上調(diào)ABCA1表達減少脂質(zhì)在THP1巨噬細胞源性泡沫細胞中蓄積[J];中國生物化學(xué)與分子生物學(xué)報;2015年09期
7 胡懷強;王興臣;周永紅;;從血濁論治動脈粥樣硬化的理論探析[J];中國中醫(yī)藥現(xiàn)代遠程教育;2015年11期
8 趙慧;劉紅;李一石;;高密度脂蛋白組分:心血管疾病診治的新靶點[J];心血管病學(xué)進展;2015年03期
9 吳厚平;胡允兆;;氧化型低密度脂蛋白與冠心病的相關(guān)性研究進展[J];中國醫(yī)學(xué)創(chuàng)新;2015年14期
10 韓耀霞;張強;梁斌;張娜娜;邊云飛;肖傳實;;ABCA1在冠心病及其發(fā)病機制中的研究新進展[J];中國動脈硬化雜志;2015年04期
相關(guān)博士學(xué)位論文 前3條
1 張艷虹;芎芍膠囊對動脈粥樣硬化兔膽固醇逆向轉(zhuǎn)運及炎癥反應(yīng)的影響[D];北京中醫(yī)藥大學(xué);2014年
2 宋慶橋;冠心病心絞痛患者中醫(yī)證候與相關(guān)血清蛋白表達的研究[D];中國中醫(yī)科學(xué)院;2010年
3 孫曉偉;不穩(wěn)定性心絞痛方證對應(yīng)及證候動態(tài)變化研究[D];北京中醫(yī)藥大學(xué);2010年
相關(guān)碩士學(xué)位論文 前9條
1 盛松;芎芍膠囊對動脈粥樣硬化兔血脂及炎癥因子的影響[D];北京中醫(yī)藥大學(xué);2013年
2 李佳;血脈寧顆粒對高脂飲食家兔血清oxLDL、ABCA1含量影響的實驗研究[D];遼寧中醫(yī)藥大學(xué);2013年
3 劉倩;白細胞介素-8對動脈粥樣硬化斑塊穩(wěn)定性的影響及芎芍膠囊的干預(yù)效應(yīng)研究[D];中國中醫(yī)科學(xué)院;2012年
4 鐘建開;普羅布考在動脈粥樣硬化模型中改善高密度脂蛋白功能的研究[D];南方醫(yī)科大學(xué);2011年
5 李寶石;補心通脈顆粒對動脈粥樣硬化家兔氧化應(yīng)激的影響[D];南方醫(yī)科大學(xué);2011年
6 范永臻;過氧化酶體增殖物激活型受體γ激動劑對動脈粥樣硬化兔HDL功能影響及其調(diào)控機制探討[D];南方醫(yī)科大學(xué);2010年
7 王振坤;普羅布考對動脈粥樣硬化兔HDL功能的影響及其調(diào)控機制探討[D];南方醫(yī)科大學(xué);2010年
8 龐文艷;芪參益氣滴丸對冠心病病人高密度脂蛋白亞型和炎性因子的影響[D];天津醫(yī)科大學(xué);2009年
9 汪韶君;扇貝裙邊糖胺聚糖對巨噬細胞脂蛋白代謝及脂蛋白受體表達的影響研究[D];青島大學(xué);2006年
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