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脂联素(Adiponectin)是脂肪组织分泌的一种脂肪细胞因子,具有增加脂肪酸氧化、提高葡萄糖摄取量、改善胰岛素抵抗、调控血管内皮的炎症反应等作用。正常人血浆中脂联素浓度与体质量指数(BMI)、腰臀比、空腹血糖、空腹胰岛素、甘油三酯、尿酸和瘦素呈负相关。脂联素还与肥胖、胰岛素抵抗、2型糖尿病和心血管疾病密切相关。  相似文献   

3.
目的研究血清脂联素(APN)水平与脑梗死的关系.方法测定123例脑梗死患者及120名健康对照者的血清脂联素(APN)、高密度脂蛋白胆固醇(HDL-C)水平、低密度脂蛋白胆固醇(LDL-C)和高敏C反应蛋白(hs-CRP)水平,并分析血清脂联素(APN)水平与脑梗死患者神经功能缺损程度评分的相关性.结果脑梗死患者血清脂联素水平明显低于健康对照组(P<0.01).经Logistic回归分析显示:血清脂联素与神经功能缺失呈负相关,血清脂联素和高密度脂蛋白胆固醇(HDL-C)水平降低、低密度脂蛋白胆固醇(LDL-C)和高敏C反应蛋白(hs-CRP)升高是脑梗死的危险因素.结论血清低脂联素水平是脑梗死的独立危险因素.  相似文献   

4.
对肥胖男大学生进行为期30 d综合干预(运动、饮食、心理辅导等)减肥,对比干预前后肥胖男大学生体重、身体脂肪量、BMI指数,体脂率,腰围,臀围等身体形态指标和空腹血糖(FBG)、空腹血清胰岛素(FIN)、空腹血脂4项(TC、TG、HDL-C、LDL-C)等血液生化指标的变化。结果显示:经过30 d的综合干预减肥,肥胖男大学生的体重、身体脂肪量、BMI指数,体脂率,腰围,臀围、腰臀比等身体形态指标以及血清总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白(LDL-C)、血清胰岛素(FIN)等血液生化指标均明显改善(P0.05)。结论:30 d的综合干预减肥能够改善肥胖男大学生的身体形态、改善已存在的脂代谢紊乱和胰岛素抵抗倾向。  相似文献   

5.
原发性高血压患者血清脂联素和抵抗素水平的变化   总被引:1,自引:0,他引:1  
目的:探讨脂联素、抵抗素水平与原发性高血压的发生、发展之间的关系.方法:原发性高血压患者114例,根据血压水平分为高血压病1级组(H1)、高血压病2级组(H2)和高血压病3级组(H3), 正常血压组(H4,对照组)40例,检测各组组的血清脂联素、抵抗素、血胆固醇、甘油三酯、高密度脂蛋白、低密度脂蛋白和空腹血糖;计算体质指数.结果:脂联素与收缩压、甘油三酯之间呈直线关系,收缩压、甘油三酯是影响脂联素水平的独立因素;抵抗素与舒张压、高密度脂蛋白、脂联素之间呈直线关系,舒张压、高密度脂蛋白、脂联素是影响抵抗素水平的独立因素.结论:血清脂联素的降低、抵抗素的升高是原发性高血压发生和发展进程中的重要影响因素.  相似文献   

6.
目的 探讨脂联素及胰岛素抵抗与冠心病(CHD)患者冠状动脉狭窄的关系。方法 选取CHD患者39例及健康对照者21例,用酶联免疫吸附法检测各组空腹血清脂联素浓度,测定各组的空腹血糖(FBG)、空腹胰岛素(FINS)等指标,采用稳态模型法计算胰岛素敏感指数(ISI),同时进行冠状动脉造影,分析血清脂联素及ISI与冠状动脉狭窄的关系。结果 CHD组与对照组比较,存在高胰岛素血症(P〈0.05)、ISI增高(P〈0.05)和血清脂联素水平降低(P〈0.01)。随冠脉病变支数的增加,FINS和ISI明显增高,2支病变组、3支病变组FINS和ISI显著高于1支病变组(P〈0.05)。相关分析显示,冠心病各亚组,血清脂联素水平与空腹胰岛素之间呈负相关(r=-0.291,P=0.040),与ISI呈正相关(r=0.325,P=0.021),而与冠状动脉病变支数无明显相关。结论 血清脂联素水平,胰岛素抵抗与冠心病发生率成正比,胰岛素抵抗与冠状动脉病变程度密切相关。  相似文献   

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目的探讨炎症因子和脂联素与2型糖尿病(T2DM)肾脏病变之间的关联。方法 60例T2DM患者被分成肥胖组和非肥胖组。采用ELISA方法检测血液中炎性细胞因子,即血清肿瘤坏死因子(TNF-a)、白细胞介素(IL-6)、总脂联素和高分子量脂联素;同时评估肾脏病变的严重程度。结果在肥胖患者进行分析时,大量蛋白尿患者的总脂联素和高分子脂联素水平显著高于正常蛋白尿患者;而大量尿蛋白患者的TNF-a和IL-6水平水与正常蛋白尿患者无统计学差异。在非肥胖患者中,大量蛋白尿患者与正常蛋白尿患者之间总脂联素、高分子脂联素、TNF-a和IL-6均无统计学差异。逻辑回归分析显示,肥胖组中血清总脂联素和高分子脂联素与肾脏病变无显著相关性。结论总脂联素与肥胖T2DM患者肾脏病变无相关性。  相似文献   

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目的比较2型糖尿病(type 2 diabetes mellitus,T2DM)与2型糖尿病合并高血压(type 2 diabetescomplicated with hypertension)患者的踝肱指数(ankle brachail,ABI)、血清脂联素(adiponectin,APN),分析影响踝肱指数、脂联素水平的相关因素。方法选择山西医科大学第二医院内分泌科就诊的符合1999年WHO制定的糖尿病诊断分型标准及高血压诊断分级标准的2型糖尿病、2型糖尿病合并高血压患者88例,以血压(收缩压>140 mmHg,舒张压>90 mmHg),分为两组;测血压、踝肱指数、空腹血糖、餐后2 h血糖、糖化血红蛋白、甘油三酯、胆固醇、高密度脂蛋白、低密度脂蛋白及血清脂联素水平。结果 2型糖尿病合并高血压组踝肱指数值低于2型糖尿病组踝肱指数值,P<0.05。2型糖尿病合并高血压组血清脂联素水平低于2型糖尿病组,差异有统计学意义(P<0.05)。结论踝肱指数及血清脂联素水平对于糖尿病大血管病变有预测意义,脂联素具有延缓糖尿病大血管病变发生的作用。  相似文献   

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为了解新疆地区汉族、维吾尔族和哈萨克族脂代谢特征,阐明代谢综合征各指标间的相互关系,以2014年6~12月新疆维吾尔自治区人民医院门诊体检个体为研究对象,包括年龄在20~90岁之间的汉族1359名、维吾尔族172名、哈萨克族630名,收集其一般资料,检测空腹血糖、血浆总胆固醇、三酰甘油、高密度脂蛋白胆固醇及低密度脂蛋白胆固醇等指标,并对不同民族血脂异常检出率进行分析比较。结果显示,维吾尔族体重、腰围、臀围、腰臀比、体质指数、肥胖及腹型肥胖检出率、血压,以及各项血脂指标均显著高于汉族及哈萨克族。新疆地区汉族、维吾尔族和哈萨克族体检人群血脂异常总检出率为23.23%,男性(32.40%)显著高于女性(17.61%)(P0.001);高胆固醇血症检出率、高三酰甘油血症检出率以及低密度脂蛋白胆固醇血症检出率维吾尔族显著高于汉族和哈萨克族(P0.001);各项血脂指标中除高密度脂蛋白胆固醇与体重、体质指数、腰围、臀围、腰臀比、收缩压、舒张压、空腹血糖、2 h后血糖、空腹胰岛素以及2 h后胰岛素等指标在汉族和哈萨克族人群中显著负相关,其余指标均与上述资料显著正相关(P0.01)。而在维吾尔族人群中仅有总胆固醇与身高、臀围、舒张压显著正相关,低密度脂蛋白与2 h血糖显著正相关(P0.01),其余指标之间均无显著相关性。结果表明,血脂异常的发生在民族及性别间存在显著差异,维吾尔族更易发生脂代谢紊乱,可能与其独特的遗传背景有关。  相似文献   

10.
目的:检测不同性别2型糖尿病患者正常体重组和肥胖组的血清视黄醇结合蛋白4(RBP4)和肿瘤坏死因子α(TNF-α)水平,探讨两者与体脂,糖类、脂类代谢,胰岛素敏感性等的相关性.方法:采用HOMA-IR评价各组胰岛素敏感性,测定受试者的体重指数(BMI),腰臀比(WHR),检测空腹状态下血清RBP4、TNF-α、血糖、HbA1c、血脂和胰岛素水平.结果:超重或肥胖者,RBP4及TNF-α浓度均比体重正常者高;男性RBP4浓度均比女性高,TNF-α浓度无性别差异.RBP4与TNF-α显著正相关.Pearson相关分析:不论性别,血清RBP4和BMI、WHR、TG及HOMA-IR均有显著正相关(P<0.05).而TNF-均与腹内型肥胖、脂代谢有关,TNF-α  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

18.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

19.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

20.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

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