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1.
内脂素是近期才被发现的脂肪细胞因子,在人和小鼠的内脏脂肪组织含量较高,肥胖的程度与血浆内脂素水平成正比。内脂素具有胰岛素样的降血糖作用,并可以改善胰岛素抵抗。研究发现,内脂素与代谢综合症、代谢相关疾病(如糖尿病、肥胖、动脉硬化)以及炎症反应有重要关系。运动可以降低血浆内脂素水平,提高脂肪组织中内脂素mRNA的表达。内脂素可能是运动改善机体代谢状况、防治代谢疾病的信号分子。  相似文献   

2.
运动疗法是治疗Ⅱ型糖尿病的基本方法之一.通过文献综述法,从运动对脂肪因子、抗氧化酶活性、胰岛素受体及葡萄糖转运载体等因素的影响方面,分析了运动对Ⅱ型糖尿病的影响机制.旨在为这一领域的进一步研究提供参考,也为今后利用科学的体育锻炼手段防治疾病提供理论依据.  相似文献   

3.
目的:探讨2型糖尿病病人内脏型肥胖和血管并发症的关系.方法:采用CT影像学检查方法对50例2型糖尿病病人进行内脏脂肪测定,根据有无内脏型肥胖将病人分为内脏肥胖组和非内脏肥胖组,观察两组血管并发症危险因子情况(血压、血脂).结果:内脏肥胖组的内脏脂肪平均值为127.12cm,非内脏肥胖组为7O.21cm;内脏肥胖组比非肥胖型组有更高的甘油三酯、血压(P<0.01).结论:内脏脂肪肥胖和心血管危险因子密切相关,是引起2型糖尿病血管并发症的重要危险因素.  相似文献   

4.
2型糖尿病在病理本质上是一种亚急性或慢性炎症性病变,其发生发展伴随着炎症反应,其中一个重要的发病机制是胰岛素抵抗.核因子-κB(nuclear factor-kappa b,NF-κB)是一类重要的核转录因子,参与了炎症和凋亡等病理生理过程,另外,NF-κB信号途径在胰岛素抵抗发生机制中有着非常重要作用.NF-κB信号转导通路的活化与炎症反应及胰岛素抵抗的发生密切相关.文章就NF-KB在糖尿病发生中的作用作一综述.  相似文献   

5.
对视黄醇结合蛋白4在胰岛素抵抗形成中的作用及其与运动关系的研究进展进行了综述研究。视黄醇结合蛋白4是将肥胖、2型糖尿病胰岛素抵抗联系起来的脂肪因子,视黄醇结合蛋白4遗传多态性亦与胰岛素抵抗的发生关系密切。视黄醇结合蛋白4能够通过抑制胰岛素信号蛋白诱导胰岛素抵抗。运动能够降低正常体重、肥胖、2型糖尿病对象的视黄醇结合蛋白4,改善胰岛素抵抗。  相似文献   

6.
PTP-1B是1988年被分离的一种蛋白质酪氨酸磷酸酶,它通过对胰岛素受体激酶活化部位(IRK)酪氨酸残基(pTyr)的去磷酸化来介导胰岛素信号.蛋白质酪氨酸磷酸化在信号转导的过程中起着关键作用,它通过在信号传导中的负调节功能导致个体胰岛素抵抗,从而发生糖脂代谢紊乱,进一步形成2型糖尿病.我国现有糖尿病患者约4000万,其中90%以上为2型糖尿病.21世纪2型糖尿病将成为中国、印度等亚太人口大国的流行病.随着对PTP-1B作用机理认识的逐渐深入,研究者发现它是2型糖尿病治疗的一个理想靶位点,为2型糖尿病发病机理和预防治疗研究提供了一条新的线索.该文综述了PTP-1B在基因结构、基因产物和生物学功能等方面的最新研究进展.  相似文献   

7.
目的:观察罗格列酮治疗对2型糖尿病内脏脂肪含量变化.方法:60例内脏脂肪性肥胖2型糖尿病患者随机分为A组、B组各30例,两组体重指数、病程、FIG和餐后2h血糖(2hPG)等资料具有可比性.维持试验前磺脲类降糖药剂量不变,A组加服罗格列酮4mg,1次/d,时间为24W,观察空腹血糖、糖化血红蛋白、胰岛素、内脏脂肪含量的变化.结果:两组空腹血糖、糖化血红蛋白、胰岛素治疗后较治疗前明显下降(P<0.05);治疗24周后A组内脏脂肪含量显著下降(P<0.05),B组无明显差异(P>0.05),2组问存在显著差异(P<0.05).结论:罗格列酮能减少2型糖尿病的内脏脂肪含量,延缓并发症的发生.  相似文献   

8.
肥胖与运动减肥   总被引:1,自引:0,他引:1  
综述了肥胖的原因,危害、治疗及运动以肥胖的影响,肥胖是一种能量调节紊乱引起的疾病,肥胖与Ⅱ型糖尿病,心血管疾病有明确的关系,运动能改变人体成分,对胰岛素与苗条素的作用产生影响,调节物质能量代谢,长期有氧运动能有效地燃烧脂肪,是运动减肥的主要方式。  相似文献   

9.
生理学家和微生物学家找到坐和健康状况不佳之间的联系.Discoveries and Breakthroughs in Science/June 1,2008-生理学家分析肥胖,心脏病和糖尿病时发现,坐行为关闭了脂肪吸收酶的循环,这种酶称为脂肪酶.他们发现,站起来可保证肌肉促进脂肪酶的分布,促进人体脂肪和胆固醇在体内的程序,而不依赖花时间在锻炼上.他们还发现,站立起来消耗血糖并能阻止糖尿病的发展.  相似文献   

10.
脂联素是脂肪细胞所分泌的细胞因子,是迄今为止所发现的唯一与肥胖呈负相关的脂肪细胞因子,具有调节葡萄糖、脂肪酸代谢及调控生物体能量稳态等功能。现就脂联素的基因结构、生物学功能及其在动物生产中的研究进展作一综述。以期为动物分子育种研究提供新的思路。  相似文献   

11.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

12.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

13.
一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/  相似文献   

14.
《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?  相似文献   

15.
钱生钱!     
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了  相似文献   

16.
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex.  相似文献   

17.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

18.
王菲 《华章》2007,(12):273-273
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.  相似文献   

19.
现在,我们可以没有面包,没有钱,没有房子,没有车子……但我们唯独不能丢失的是高尚的情操,笃定的信念,还有,满满的希望!  相似文献   

20.
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator's Garden. Translating building data to the Virtual Reality Modeling Language (VRML) is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching.  相似文献   

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