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1.
刘洪广 《西安体育学院学报》1996,(1)
本文论述了动脉粥样硬化动物模型复制的动物选择，具体复制方法，并就慢张力肌肉收缩这种运动方式对动脉粥样硬化的阻御作用进行了较详细的科学理论分析。 相似文献
2.
胡晨 《湖州师范学院学报》2015,(4):71-75
复制大鼠动脉粥样硬化(AS)模型,同时给予补肾疏肝活血通脉方预防,14周后油红染色观察动脉壁脂质沉积状况,并利用免疫组化法检测 MMP 9/TIMP 1在动脉细胞中的表达情况。结果发现,补肾疏肝活血通脉方能明显降低油红在 AS 大鼠动脉壁的着色程度,抑制 MMP 9/TIMP 1在动脉壁的阳性表达。可见,补肾疏肝活血通脉方能抑制 AS 的发生,其作用机制可能与减少脂质在体内沉积、抑制 MMP 9/TIMP 1的表达有关。 相似文献
3.
目的:通过中小强度有氧运动和辛伐他汀药物干预,探讨AS血管炎性损伤的修复及机制。方法:应用ApoE基因敲除和高脂高胆固醇饲料诱发小鼠AS,分为动脉硬化组、运动组、用药组;ELISA测定血清炎性因子及激素水平;免疫组化法阳性标记TLR4、NF-κb、EGF、TGF-β;RT-PCR测定CRP、MCP-1 mRNA表达。结果:12周动脉硬化组ApoE基因敲除小鼠血管可见明显斑块组织;用药组内皮表层细胞肿胀呈泡沫样,运动组则未见以上组织改变;运动和用药组小鼠血清IL-6、TNF-a含量和血管组织TLR4、NF-κb、CRP、MCP-1表达均降低(P<0.05),而血清IL-10、ET1、AngⅡ和内皮细胞EGF、TGF-βmRNA表达均升高(P<0.05)。结论:有氧运动有效防治AS小鼠血管炎性损伤,其可能机制是介导了Toll样受体通路并恢复血管激素分泌与促进内皮细胞再生。 相似文献
4.
高密度脂蛋白参与的胆固醇逆向转运被认为具有抗动脉粥样硬化作用,是冠心病的保护因子。胆固醇酯转运蛋白是胆固醇逆向转运的关键蛋白质,是血浆高密度脂蛋白水平的主要决定因素之一。对其结构和功能以及其与血脂及动脉粥样硬化的关系进行深入的研究,是当今一热点,将为阐明动脉粥样硬化的分子病理机制和探索动脉粥样硬化的防治措施提供依据。 相似文献
5.
Margetic S 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(1):49-62
Inflammation and haemostasis are interrelated pathophysiologic processes that considerably affect each other. In this bidirectional relationship, inflammation leads to activation of the haemostatic system that in turn also considerably influences inflammatory activity. Such, the haemostatic system acts in concert with the inflammatory cascade creating an inflammation-haemostasis cycle in which each activated process promotes the other and the two systems function in a positive feedback loop. The extensive crosstalk between immune and haemostatic systems occurs at level of all components of the haemostatic system including vascular endothelial cells, platelets, plasma coagulation cascade, physiologic anticoagulants and fibrinolytic activity. During inflammatory response, inflammatory mediators, in particular proinflammatory cytokines, play a central role in the effects on haemostatic system by triggering its disturbance in a number of mechanisms including endothelial cell dysfunction, increased platelet reactivity, activation of the plasma coagulation cascade, impaired function of physiologic anticoagulants and suppressed fibrinolytic activity. The two examples of pathophysiologic processes in which the tight interdependent relationship between inflammation and haemostasis considerably contribute to the pathogenesis and/or progression of disease are systemic inflammatory response to infection or sepsis and acute arterial thrombosis as a consequence of ruptured atherosclerotic plaque. Close links between inflammation and haemostasis help explain the prothrombotic tendency in these two clinical conditions in which inflammation shifts the haemostatic activity towards procoagulant state by the ability of proinflammatory mediators to activate coagulation system and to inhibit anticoagulant and fibrinolytic activities. This review summarizes the current knowledge of the complex interactions in the bidirectional relationship between inflammation and haemostasis. 相似文献
6.
Luiz Rodrigo Augustemak de Lima Isabela de Carlos Back Everson Araújo Nunes Diego Augusto Santos Silva Edio Luiz Petroski 《Journal of sports sciences》2019,37(1):50-58
This study aimed to investigate if moderate to vigorous physical activity (MVPA) and aerobic fitness are associated with cardiovascular risk factors in HIV+ children and adolescents. Sixty-five children and adolescents (8 to 15 years) provided minutes of MVPA measured by accelerometers and peak oxygen uptake (peak VO2) by breath-by-breath respiratory exchange. Cardiovascular risk factors were characterized by body fat, blood pressure, total cholesterol, HDL-c, LDL-c, triglycerides, glucose, insulin, C-reactive protein (CRP), interleukin (IL)-6, tumor necrosis factor-alpha (TNF-α) and carotid intima-media thickness. Results indicated that higher MVPA was associated with lower values of total (β = ?3.566) and trunk body fat (β = ?3.495), total cholesterol (β = ?0.112) and LDL-c (β = ?0.830). Likewise, higher peak VO2 was associated with lower total (β = ?0.629) and trunk body fat values (β = ?0.592) and levels of CRP (β = ?0.059). The physically active participants had lower total cholesterol (?24.4 mg.dL?1) and LDL-c (?20.1 mg.dL?1) compared to participants judged to be insufficiently active. Moreover, participants with satisfactory peak VO? showed lower total (?4.1%) and trunk (?4.3%) body fat, CRP (?2.3 mg.L?1), IL-6 (?2.4 pg.mL?1) and TNF-α (?1.0 pg.mL?1) compared to low peak VO2 peers. High levels of MVPA and aerobic fitness may prevent developing of cardiovascular risk factors in children and adolescents HIV+. 相似文献
7.
颅内外动脉粥样硬化性大动脉狭窄与脑梗死关系 总被引：1，自引：0，他引：1
目的:探讨动脉粥样硬化性颈动脉狭窄、颅内大脑中动脉狭窄与急性脑梗死的关系及脑梗死复发原因.方法:采用多普勒超声对136例急性脑梗死患者进行颅内外动脉检测,并对随访期间复发患者进行动脉彩色多普勒超声检测分析.结果:136例脑梗死患者大脑中动脉狭窄42例,颈动脉中、重度狭窄12例.随访期内脑梗死复发26例,其中颈动脉中、重度狭窄10例.结论:急性脑梗死与大脑中动脉严重狭窄者密切相关,复发性脑梗死与颈动脉狭窄密切相关. 相似文献
8.
在广泛查阅有关文献的基础上,综述了近年来在氧化脂蛋白导致动脉粥样硬化的机理方面的主要研究进展,并提出了有氧运动引起的内源性抗氧化能力的提高,有可能通过抑制脂蛋白的过氧化这一机制预防动脉粥样硬化的假设,阐述了在这一领域进行深入研究的重要性。 相似文献
9.
心血管疾病是危害人类健康的主要因素,其中动脉粥状硬化又是致死和致残的主要因子,它可以发生在多种动脉中并导致许多疾病,导致动脉粥状硬化的因素有几种,在此仅介绍血管内皮细胞损伤。 相似文献
10.
动脉粥样硬化是一种严重危害人类健康的疾病.氧化应激、血管病变、炎症反应在动脉粥样硬化发生中起关键作用.近年来研究发现,氧化应激是动脉粥样硬化斑块形成中的重要因素.血管系统中内源性气体信号分子NO、CO、H2S作为一种独特的血管活性物质,分别与其相应的合成酶一氧化氮合酶(NOS)、血红素加氧酶(HO)和胱硫醚-r-裂解酶(CES)形成独立而又相互关联的体内重要抗氧化系统,可以减少动脉粥样硬化的严重度.运动可以造成氧化应激,但有规律有计划的体育运动可以通过基因水平上调节氧化还原信号增强机体抗氧化能力.最近研究发现,运动能诱导气体信号分子相应的合成酶合成,对动脉粥样硬化病理形成和发展具有阻抑作用. 相似文献