,Expression of integrin in hepatic fibrosis and intervention of resveratrol

来源 :中国高等学校学术文摘·医学 | 被引量 : 0次 | 上传用户:cs333333
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The aim of this study was to explore the expression of integrin-β1 in different stages of hepatic fibrosis and intervention of resveratrol as well as the way by which integrin-β1 promoted hepatic fibrosis. Hepatic fibrosis models of male Sprague Dawley (SD) rats were created and intragastric administration of resveratrol was given in low (40 mg/kg), middle (120mg/kg) and high (200 mg/kg) dose groups. The expression of integrin-β1, transforming growth factor-β (TGF-β) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in different stages of hepatic fibrosis was detected by using RT-PCR. The expression of hexadecenoic acid (HA) and precollagen Ⅲ (pc Ⅲ) was assayed by radioimmunoassay. The expression of integrin-β1, TGF-β and TIMP-1 was determined in each group. Liver function and pathological sections of each group in different stages of hepatic fibrosis was tested to judge the therapeutic efficacy of resveratrol at different doses. The expression of integrin-β1 in normal control group was low and steady and was not increased with the development of hepatic fibrosis, but it was increased in other groups. The expression levels of integrin-β1 in the model control group (0.878±0.03, P <0.01) and low dose group (0.855±0.04, P0.05). The expression levels of integrin-β1 and TGF-β in middle dose group and high dose group were higher than other groups (P<0.01). The expression levels of integrin-β1 and TGF-β in model control group and low dose group were lower than the normal control group (P < 0.01). The expression levels of TIMP-1 in the model control and low dose groups were higher than the other groups (P < 0.01). The expression levels of TIMP-1 in the middle dose group and the high dose group were lower than the normal control group (P<0.01). The expression of integrin-β1 existed in all stages of hepatic fibrosis of SD rats, and it was increased with the development of hepatic fibrosis. The expression of TGF-β and TIMP-1 was consistent with that ofintegrin-β1 in different stages of hepatic fibrosis. Resveratrol could improve the degree of hepatic fibrosis of SD rats and decrease the expression of integrin-β1 markedly at a dose of 120 mg/kg.
其他文献
那天中午,彦火请诗人席慕容,我也来了。席慕容第一眼见到我就说:“我们在哪里见过面?”我看着短发圆脸的女诗人,依稀面熟,却记不起哪里见过,也许只是在书本上,或者计算机屏幕
<正> 广播电视节目中几乎每天都播送评论,虽不多见长篇大论,编后话、短评却常常出现;在主持人节目中,夹叙夹议的话更多。评论播音今天仍是播音员或主持人的基本功之一。播评论就是要善于说理。我赞同说理人应该有“我有理”的心态。这是评论播音的基本心态。叙述一件事,耳闻目睹确凿,说起来便会句句实在,语气肯定,听的人也觉得真切。倘或是道听途说,心中无数,就会语气飘忽不定,若明若暗,让人听来半信半
采用几种不同遮光度研究了茶树在遮荫条件下新梢的生长特性及其生理生化变化,结果表明,在夏秋高温干热季节,轻、中度遮荫茶树光合强度提高,呼吸强度和蒸腾强度降低,茶树净同
摘 要:现代教育技术是教育改革和发展的制高点与突破口,教育信息化是实现教育现代化和基础教育跨越式发展的一个关键因素。本文从设立信息化工作办公室、制定“行动计划”、 加强环境资源建设和师资队伍建设、构建“数字南宁”信息平台、实施义务教育均衡建设工程等方面,介绍广西南宁市以教育信息化带动教育现代化,实现基础教育跨越式发展的做法和经验,以期对其他地方的教育信息化建设提供参考。  关键词:教育信息化;信息
1943年农历二月十七,我生于甘肃天水。此前,父亲因肺病加重,咯血,于1942年夏天与母亲一道,带着刚四岁的姐姐,从兰州回到了老家--天水新阳镇王家庄养病。著名爱国将军邓宝珊将军作为
文章在一般均衡模型的基础上,以比较静态方法分析了房地产投资倾向变化对均衡产出增长率的作用机制和影响情况,发现房地产投资倾向的提高将导致均衡产出增长率的降低。文章进
“立命之学”是传授心想事成的一种生命的能力。如果定目标不实现,对于我们的自尊心,对于我们的生命信心,伤害是极大的。人不如意常八九,百分之八九十的人都受到了目标的伤害
随便翻开报纸,报上有不少经济报道都涉及到数字。如何在经济报道中用好用活数字,让数字获得“生命”,更好地发挥数字的作用,这是经济报道中一个需要注意的问题。为什么我们
只见那后生生得身长八尺,头戴金盔,身穿金甲,坐下青鬃马,手提一杆錾金虎头枪,见了牛皋便喝道:“你可就是牛皋么?”牛皋道:“老爷便是!你是什么人?敢来阻我粮草?”那人道:“你
女贞(Ligustrum lucidum Ait.)系木犀科(Oleaceae)女贞属(Ligustrum Linn.)常绿灌木或小乔木植物,是一种珍贵的苦丁茶代茶饮料植物和药用植物,具有多种药用价值和保健功能。
学位