內(nèi)質(zhì)網(wǎng)應(yīng)激在間歇性低氧小鼠血管內(nèi)皮功能障礙中的作用
[Abstract]:BACKGROUND Obstructive sleep apnea syndrome (OSAS) is a common sleep-related respiratory disorder, which occurs repeatedly during sleep with obstructive hypopnea or apnea. Intermittent hypoxia (IH) is considered to be the main feature and important injury mechanism of OSAS, and is the primary cause of OSAS. Endoplasmic reticulum stress can occur under many pathophysiological stimuli, such as oxidative stress, ischemia and hypoxia, especially in OSAS-related diseases such as atherosclerosis, diabetes, ischemic cardiomyopathy. Endothelial cell apoptosis is closely related to vascular endothelial dysfunction in OSAS patients. Endoplasmic reticulum stress has been found to be another way of inducing endothelial cell apoptosis. Therefore, we speculate that intermittent hypoxia may induce vascular dysfunction by endothelial cell injury mediated by endoplasmic reticulum stress. Objective 1. To establish an IH mouse model and apply endoplasmic reticulum stress. Inhibitors, to observe the effects of IH on blood pressure and vasodilator function in mice and the relative expression of ER stress-related proteins in thoracic aorta of IH mice; 2. To establish vascular endothelial cell IH model, to observe the effect of intermittent hypoxia on cell injury, and to study the fine endoplasmic reticulum stress induced by intermittent hypoxia in different degrees. Methods The male healthy Kunming mice were divided into normal control group, intermittent hypoxia (IH) group and endoplasmic reticulum stress inhibitor 4-phenylbutyric acid (4-PBA) intervention group. Systolic blood pressure (SBP) was measured by myography. The expression of GRP78 and CHOP in thoracic aorta was detected by Western Bolt. Human umbilical vein endothelial cells (HUVECs) were divided into normal culture (IH 0 h), IH 6 h, IH 12 h and IH 2 groups by cell experiment. Cell Counting Kit-8 (CCK-8) was used to detect cell viability. Cell apoptosis was detected by flow cytometry. The content of endothelial nitric oxide synthase (e NOS) was measured by enzyme-linked immunosorbent assay (ELISA). 1. Blood pressure was induced by endoplasmic reticulum stress in intermittent hypoxia in mice. Male healthy Kunming mice were divided into normal control group, intermittent hypoxia (IH) group and intermittent hypoxia 4-PBA intervention (IH+4-PBA) group. IH group and IH+4-PBA group were put into hypoxic chamber for intermittent hypoxia treatment, 8 hours a day for 28 days, intermittent hypoxia treatment was given intraperitoneal injection of 4-PBA (100mg/kg/d) for the last week. Endoplasmic reticulum stress was used to detect endothelial dysfunction induced by intermittent hypoxia in mice. Endothelial relaxation of thoracic aorta in three groups was measured by in vitro vascular tension measurement. Effects of intermittent hypoxia on the expression of ER stress-related proteins in thoracic aorta of mice were detected by Western Bolt method. The expression levels of ER stress-related proteins GRP78 and CHOP in thoracic aorta of three groups of mice were detected. Effects of intermittent hypoxia on the viability of human umbilical vein endothelial cells (HUVECs) After 12 hours of normal culture, HUVECs were replaced with serum-free medium. IH 0 h group, IH 6 h group, IH 12 h group and IH 24 h group were set up. Endoplasmic reticulum inhibitor 4-PBA (2 mmol/L) and Cell Counting Kit-8 (CCK-8) were used to detect the viability of HUVECs and observe intermittent hypoxia and stress. The effect of ER stress on the apoptosis of human umbilical vein endothelial cells was studied. 5. The effects of ER stress on the apoptosis of human umbilical vein endothelial cells were divided into IH 0 h group, IH 6 h group, IH 12 h group and IH 24 h group. Effect of endoplasmic reticulum stress on the content of E NOS in human umbilical vein endothelial cells under intermittent hypoxia Intermittent hypoxia can reduce the endothelium-dependent relaxation of thoracic aorta in mice. 4-PBA can improve the endothelium-dependent relaxation of thoracic aorta in IH mice. Endothelial-independent relaxation has no difference. 3. Intermittent hypoxia can decrease the expression of GRP78 in thoracic aorta, 4-PBA can increase the expression of GRP78 and CHOP protein. Intermittent hypoxia can inhibit the activity of HUVECs, which can be inhibited by 4-PBA. 5. Intermittent hypoxia can inhibit the apoptosis of HUVECs for 6 h without any change. Long-term intermittent hypoxia (12 h and 24 h) can increase the apoptosis of HUVECs. 4-PBA can inhibit the apoptosis of HUVECs caused by intermittent hypoxia. Hypoxia (12 h and 24 h) can reduce the content of E NOS produced by endothelial cells, and its effect can be inhibited by 4-PBA. Conclusion Intermittent hypoxia can induce endoplasmic reticulum stress in vascular endothelial cells, induce apoptosis, decrease the level of E NOS and decrease the vasodilator function, and lead to elevated blood pressure.
【學(xué)位授予單位】:安徽醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:R766
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 于天正;低氧對(duì)培養(yǎng)不同內(nèi)徑的肺動(dòng)脈平滑肌細(xì)胞增殖的影響[J];高原醫(yī)學(xué)雜志;2001年01期
2 ;應(yīng)激適應(yīng)比低氧適應(yīng)在更大程度上增強(qiáng)動(dòng)物對(duì)亞致命性低氧的抵抗[J];高原醫(yī)學(xué)雜志;1995年01期
3 趙誠民;低氧儀及其研制開發(fā)的意義[J];體育科學(xué);2000年02期
4 呂國蔚;低氧反應(yīng)通路[J];生理科學(xué)進(jìn)展;2001年01期
5 于天正,馬傳桃;低氧對(duì)培養(yǎng)的不同內(nèi)徑的肺動(dòng)脈平滑肌細(xì)胞增殖的影響[J];中國應(yīng)用生理學(xué)雜志;2001年01期
6 呂國蔚;低氧耐受動(dòng)物細(xì)胞的耐低氧策略[J];高原醫(yī)學(xué)雜志;2001年01期
7 錢頻,王關(guān)嵩,蒙偉宗,關(guān)崧,陳維中;低氧對(duì)大鼠肺動(dòng)脈平滑肌細(xì)胞表達(dá)信號(hào)轉(zhuǎn)導(dǎo)及轉(zhuǎn)錄激活因子基因表達(dá)的影響[J];第三軍醫(yī)大學(xué)學(xué)報(bào);2003年02期
8 陳寶元;慢性阻塞性肺疾病夜間低氧研究的進(jìn)展[J];國外醫(yī)學(xué)(呼吸系統(tǒng)分冊(cè));2003年01期
9 周兆年;低氧與健康研究[J];中國基礎(chǔ)科學(xué);2003年05期
10 陳偉,陳家佩,葛世麗,從玉文,付小兵;低氧對(duì)大鼠肝腎組織內(nèi)紅細(xì)胞生成素和低氧誘導(dǎo)因子-1α基因表達(dá)的影響[J];中國危重病急救醫(yī)學(xué);2004年01期
相關(guān)會(huì)議論文 前10條
1 秦嶺;文賽蘭;井然;宋智;李岑;向陽;;間歇性低氧對(duì)小鼠瘦素及其受體表達(dá)的影響[A];湖南省生理科學(xué)會(huì)2006年度學(xué)術(shù)年會(huì)論文摘要匯編[C];2007年
2 陳學(xué)群;杜繼曾;;低氧腦-內(nèi)分泌網(wǎng)絡(luò)作用[A];中國生理學(xué)會(huì)第23屆全國會(huì)員代表大會(huì)暨生理學(xué)學(xué)術(shù)大會(huì)論文摘要文集[C];2010年
3 郭世榮;李式軍;李娟;解衛(wèi)華;;根際低氧逆境的危害和蔬菜作物的耐低氧性研究進(jìn)展[A];中國園藝學(xué)會(huì)第四屆青年學(xué)術(shù)討論會(huì)論文集[C];2000年
4 景孝堂;范文紅;吳燕;楊應(yīng)忠;范明;;神經(jīng)發(fā)育中低氧相關(guān)新基因的篩選[A];中國生理學(xué)會(huì)第六屆應(yīng)用生理學(xué)委員會(huì)全國學(xué)術(shù)會(huì)議論文摘要匯編[C];2003年
5 杜繼曾;陳學(xué)群;張穎沙;劉健翔;許寧一;張家興;;低氧下生長(zhǎng)發(fā)育抑制與認(rèn)知功能促進(jìn)的調(diào)節(jié)機(jī)制[A];中國生理學(xué)會(huì)第五屆比較生理學(xué)學(xué)術(shù)會(huì)議論文匯編[C];2004年
6 單淑香;;慢性阻塞性肺疾病患者睡眠低氧的初步研究[A];中華醫(yī)學(xué)會(huì)呼吸病學(xué)年會(huì)——2011(第十二次全國呼吸病學(xué)學(xué)術(shù)會(huì)議)論文匯編[C];2011年
7 馬子敏;范明;;低氧損傷與離子通道[A];2003’離子通道、受體與信號(hào)轉(zhuǎn)導(dǎo)專題研討會(huì)專輯[C];2003年
8 李海生;陳金武;朱玲玲;趙彤;趙惠卿;馬蘭;丁愛石;范明;;不同程度持續(xù)低氧對(duì)人骨髓間充質(zhì)干細(xì)胞增殖的作用[A];中國生理學(xué)會(huì)第六屆應(yīng)用生理學(xué)委員會(huì)全國學(xué)術(shù)會(huì)議論文摘要匯編[C];2003年
9 彭兆云;孫學(xué)軍;練慶林;蔣春雷;;高壓氧預(yù)處理提高小鼠耐低氧能力的實(shí)驗(yàn)研究[A];中國生理學(xué)會(huì)第六屆應(yīng)用生理學(xué)委員會(huì)全國學(xué)術(shù)會(huì)議論文摘要匯編[C];2003年
10 洪欣;尹昭云;謝印芝;呂永達(dá);;低氧時(shí)肺動(dòng)脈內(nèi)皮細(xì)胞功能變化及其在肺水腫發(fā)生中的作用[A];中國生理學(xué)會(huì)第六屆全國青年生理學(xué)工作者學(xué)術(shù)會(huì)議論文摘要[C];2003年
相關(guān)重要報(bào)紙文章 前8條
1 本報(bào)記者 周仲全;窒息的海洋[N];遼寧日?qǐng)?bào);2008年
2 ;低氧健身好處多[N];中國中醫(yī)藥報(bào);2003年
3 王雪飛;間歇性低氧對(duì)學(xué)習(xí)記憶有利[N];健康報(bào);2004年
4 李慶;健身新概念:低氧運(yùn)動(dòng)[N];工人日?qǐng)?bào);2000年
5 記者 馬芳;地下鼠低氧生存源自基因突變[N];南方日?qǐng)?bào);2014年
6 北京體育大學(xué)科研中心教授 胡揚(yáng);低氧運(yùn)動(dòng)也很棒[N];健康報(bào);2010年
7 健康時(shí)報(bào)記者 葉依;睡幾天“低氧屋”也能減肥?[N];健康時(shí)報(bào);2008年
8 記者 嚴(yán)存義 周丹波;高原低氧關(guān)注健康[N];甘肅日?qǐng)?bào);2003年
相關(guān)博士學(xué)位論文 前10條
1 劉超;涎腺腺樣囊性癌中低氧與自噬相關(guān)基因的生物信息學(xué)研究[D];山東大學(xué);2015年
2 紀(jì)志鵬;低氧預(yù)處理誘導(dǎo)的HIF-1α可促進(jìn)缺血再灌注損傷肝臟糖代謝并保護(hù)線粒體的研究[D];山東大學(xué);2015年
3 葉巧;Tat-NGB低氧神經(jīng)保護(hù)作用機(jī)理研究及低氧相關(guān)模型探索與應(yīng)用[D];中國人民解放軍軍事醫(yī)學(xué)科學(xué)院;2016年
4 張森;低氧右心室在壓力/容量超負(fù)荷條件下的適應(yīng)機(jī)制研究[D];北京協(xié)和醫(yī)學(xué)院;2016年
5 周洋;miR-199a-5p在慢性缺氧心肌內(nèi)質(zhì)網(wǎng)應(yīng)激中的作用及機(jī)制研究[D];第三軍醫(yī)大學(xué);2016年
6 許曉玲;抑制CapG基因預(yù)防低氧性肺動(dòng)脈高壓的研究[D];浙江大學(xué);2016年
7 游詠;低氧狀態(tài)下肌紅蛋白促骨髓間充質(zhì)干細(xì)胞向內(nèi)皮細(xì)胞分化[D];南華大學(xué);2016年
8 張培;低氧調(diào)控糖皮質(zhì)激素受體α表達(dá)及核轉(zhuǎn)位的分子機(jī)制研究[D];安徽醫(yī)科大學(xué);2016年
9 童大力;HIF/PHF8/AR軸在去勢(shì)抵抗前列腺癌發(fā)生中的作用機(jī)制研究[D];第三軍醫(yī)大學(xué);2016年
10 謝惠春;三種小型哺乳動(dòng)物低氧適應(yīng)生理生化機(jī)制研究[D];陜西師范大學(xué);2016年
相關(guān)碩士學(xué)位論文 前10條
1 周姍姍;低氧預(yù)處理的骨髓間充質(zhì)干細(xì)胞對(duì)慢性腎衰竭大鼠腎臟的修復(fù)作用[D];福建醫(yī)科大學(xué);2015年
2 嚴(yán)衛(wèi)亞;低氧預(yù)處理MSCs通過Pim-1高表達(dá)抑制細(xì)胞凋亡的實(shí)驗(yàn)研究[D];蘇州大學(xué);2015年
3 王慧娟;低氧對(duì)團(tuán)頭魴生理生化指標(biāo)及低氧應(yīng)答基因表達(dá)的影響[D];華中農(nóng)業(yè)大學(xué);2015年
4 吳鑫杰;低氧對(duì)團(tuán)頭魴細(xì)胞凋亡及抗氧化酶活性的影響[D];華中農(nóng)業(yè)大學(xué);2015年
5 寇蓬;Twist在低氧微環(huán)境中宮頸癌順鉑耐藥的作用及機(jī)制研究[D];昆明醫(yī)科大學(xué);2015年
6 李錦松;金絲桃苷對(duì)低氧時(shí)大鼠認(rèn)知功能損傷的改善作用及其抗氧化應(yīng)激損傷機(jī)制[D];廣東藥學(xué)院;2015年
7 郭佳;宮內(nèi)生理性低氧微環(huán)境對(duì)哺乳動(dòng)物胚胎早期腎臟發(fā)育的影響[D];復(fù)旦大學(xué);2014年
8 張振中;低氧處理對(duì)不同年齡段C57小鼠骨髓間充質(zhì)干細(xì)胞增殖能力的影響[D];南方醫(yī)科大學(xué);2015年
9 張建明;低氧下cyclinB1表達(dá)與肝癌細(xì)胞對(duì)Hsp90抑制劑17-DMAG耐藥性的關(guān)系探討[D];南方醫(yī)科大學(xué);2015年
10 吳國瑞;低氧微環(huán)境對(duì)腦星形膠質(zhì)細(xì)胞凋亡及對(duì)BCL-2表達(dá)的影響[D];昆明醫(yī)科大學(xué);2015年
,本文編號(hào):2194392
本文鏈接:http://sikaile.net/yixuelunwen/wuguanyixuelunwen/2194392.html