烏司他丁對(duì)脂多糖誘導(dǎo)大鼠急性肺損傷中NF-κBp65及MMP-2表達(dá)的影響
[Abstract]:AIM: To investigate the expression of nuclear factor-kappa B (NF-KB) p65 and matrix metalloproteinase-2 (MMP-2) in lung tissues of rats with acute lung injury (ALI) induced by lipopolysaccharide (LPS), and to explore the signal transduction of NF-kappa B. Meanwhile, by observing the lung pathology, the changes of NF-kappa B p65 and MMP-2 in ALI rats after ulinastatin intervention, the protective effect of ulinastatin on LPS-induced ALI and its possible mechanism were investigated.
Methods: Forty-five healthy male SD rats were randomly divided into normal control group, acute lung injury group and ulinastatin intervention group, 15 rats in each group. (1) Normal control group: tail vein injection of normal saline (2ml/kg). (2) ALI group: tail vein injection of lipopolysaccharide (5mg/kg) induced ALI rat model. (3) Ulinastatin intervention group: rats were intraperitoneally injected with ulinastatin. (100ku / kg), 30 minutes later, the tail vein was injected with lipopolysaccharide (5mg / kg). The rats were sacrificed 4 hours after the tail vein administration and the corresponding pulmonary tissue and blood samples were taken. The arterial oxygen partial pressure (PaO2) was measured and the pulmonary tissue was taken for examination. Wet-to-dry weight ratio (W/D) was measured. The lung tissue was observed with naked eyes. The pathological changes of HE staining were observed under light microscope. The expressions of NF-KBp65 and MMP-2 in lung tissue were detected by immunohistochemistry.
Results: 1. Changes of PaO2: Pa02 fluctuated around 103.1 mmHg in the normal control group; Pa02 in the ALI group was significantly lower than that in the normal control group (P 0.05); Pa02 in the Ulinastatin intervention group was higher than that in the ALI group, but still lower than that in the normal control group (P 0.05). W/D fluctuated around 4.33; W/D in lung tissue of ALI group increased significantly compared with normal control group (P 0.05); W/D in lung tissue of ulinastatin intervention group was lower than that of ALI group, but still higher than that of normal control group. 3. Compared with normal control group, the expression of NF-kappa Bp65 and MMP-2 in lung tissue of ALI group and Ulinastatin intervention group increased significantly (P 0.05). The expression of NF- kappa Bp65 and MMP-2 in the intervention group was lower than that in the ALI group (P0.05).
Conclusion: 1. The expression of NF-kappa B p65 and MMP-2 in the lung tissue of LPS-induced acute lung injury rats increased; 2. Ulinastatin can inhibit the expression of NF-kappa B p65 and MMP-2 in the lung tissue of acute lung injury rats; 3. Ulinastatin may have protective effect on LPS-induced acute lung injury rats.
【學(xué)位授予單位】:中南大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:R563.8
【共引文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉明偉;王忠平;;無(wú)創(chuàng)機(jī)械通氣的臨床應(yīng)用現(xiàn)狀[J];重慶醫(yī)學(xué);2010年19期
2 謝康,黃躍生;烏司他丁對(duì)嚴(yán)重?zé)齻笫笱逯兄卵滓蜃拥挠绊懠耙饬x[J];第三軍醫(yī)大學(xué)學(xué)報(bào);2004年18期
3 王小雷;王焰斌;翟宇佳;葉曉青;程毅堅(jiān);李剛;王湘;王毅;;烏司他丁后處理對(duì)心臟瓣膜置換患者術(shù)中心肌損傷指標(biāo)的影響[J];廣東醫(yī)學(xué);2012年03期
4 王壽勇;體外循環(huán)相關(guān)全身性炎癥反應(yīng)的預(yù)防與治療[J];國(guó)外醫(yī)學(xué).麻醉學(xué)與復(fù)蘇分冊(cè);2003年01期
5 劉錦祥;謝作華;黃玉杰;李佳穎;王日華;賈新菊;;烏司他丁干預(yù)治療急性呼吸窘迫綜合征的臨床研究[J];廣西中醫(yī)藥大學(xué)學(xué)報(bào);2012年04期
6 趙靜月;蔣芳琴;;急性呼吸窘迫綜合征的護(hù)理研究進(jìn)展[J];海南醫(yī)學(xué);2009年S3期
7 余劍波;圍手術(shù)期應(yīng)用烏司他丁對(duì)機(jī)體的保護(hù)作用[J];華南國(guó)防醫(yī)學(xué)雜志;2003年06期
8 王暉;趙曄;陳曉紅;江曉玲;代璐;;肺復(fù)張手法與單純小潮氣量機(jī)械通氣治療急性呼吸窘迫綜合征[J];臨床肺科雜志;2009年01期
9 應(yīng)俊;徐國(guó)海;胡衍輝;朱曉紅;羅振中;;不同途徑注入烏司他丁對(duì)心內(nèi)直視術(shù)心肌保護(hù)的比較[J];臨床麻醉學(xué)雜志;2011年09期
10 馬素美;徐志新;張際春;周新紅;;烏司他丁對(duì)心肺轉(zhuǎn)流患者血漿S-100β蛋白、炎性因子及認(rèn)知功能的影響[J];臨床麻醉學(xué)雜志;2011年09期
相關(guān)博士學(xué)位論文 前7條
1 王少根;高頻震蕩通氣聯(lián)合肺表面活性物質(zhì)治療吸入性損傷的實(shí)驗(yàn)研究[D];南昌大學(xué);2007年
2 胡曉光;小兒急性低氧性呼吸衰竭多中心臨床流行病學(xué)研究[D];復(fù)旦大學(xué);2008年
3 張慶富;經(jīng)顱高壓電燒傷對(duì)微血管內(nèi)白細(xì)胞流變行為的影響及相關(guān)機(jī)制[D];河北醫(yī)科大學(xué);2010年
4 盛益華;潰瘍性結(jié)腸炎大鼠肺損傷細(xì)胞凋亡機(jī)制及中藥單體干預(yù)作用機(jī)制研究[D];北京中醫(yī)藥大學(xué);2013年
5 白光振;紫草素在急性肺損傷中保護(hù)作用與機(jī)制的研究[D];第四軍醫(yī)大學(xué);2013年
6 馬曉薇;1、;撬峒把芫o張素轉(zhuǎn)化酶抑制劑對(duì)大鼠急性肺損傷的保護(hù)作用研究 2、ALI/ARDS影響因素分析[D];重慶醫(yī)科大學(xué);2013年
7 朱濤;穿心蓮內(nèi)酯通過抑制NF-κB信號(hào)通路對(duì)LPS誘導(dǎo)的小鼠ALI/ARDS的保護(hù)機(jī)制的實(shí)驗(yàn)研究[D];重慶醫(yī)科大學(xué);2013年
相關(guān)碩士學(xué)位論文 前10條
1 閆亞敏;肺表面活性物質(zhì)治療呼吸窘迫綜合征給藥方式的研究[D];第二軍醫(yī)大學(xué);2011年
2 劉鈺;烏司他丁對(duì)瓣膜置換術(shù)患者肺臟和腎臟的保護(hù)作用[D];河北醫(yī)科大學(xué);2011年
3 韋鵬;舒芬太尼預(yù)處理對(duì)瓣膜置換術(shù)患者體外循環(huán)誘導(dǎo)心肌損傷的保護(hù)作用[D];安徽醫(yī)科大學(xué);2011年
4 馬素美;烏司他丁對(duì)體外循環(huán)心臟手術(shù)患者血漿S-100β蛋白及炎性因子的影響[D];新疆醫(yī)科大學(xué);2011年
5 阮義峰;心臟直視手術(shù)圍麻醉期心肌損傷的早期診斷及烏司他丁的保護(hù)作用[D];南京醫(yī)科大學(xué);2005年
6 陳淑萍;兩種肺復(fù)張方法治療ALI/ARDS的效果比較[D];新疆醫(yī)科大學(xué);2009年
7 彭娜;烏司他丁對(duì)膿毒癥心肌損傷的保護(hù)作用及機(jī)理探討[D];南方醫(yī)科大學(xué);2010年
8 王佳;大劑量鹽酸氨溴索對(duì)大鼠百草枯中毒肺泡表面活性物質(zhì)影響的研究[D];河北醫(yī)科大學(xué);2010年
9 李喜龍;烏司他丁對(duì)體外循環(huán)患者中性粒細(xì)胞NF-κB活性及血漿TNF-α和IL-8水平的影響[D];河北醫(yī)科大學(xué);2010年
10 黃初生;白細(xì)胞濾過在體外循環(huán)中應(yīng)用的Meta分析[D];廣西醫(yī)科大學(xué);2013年
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