血管内皮生长因子与缺血性心血管疾病

血管内皮生长因子与缺血性心血管疾病郑卫李倩虹陈光慧汤健马大龙１９８９年Ｇｏｓｐｏｄａｒｏｗｉｃｚ等［１］首先从牛垂体滤泡星状细胞培养液中纯化出一种蛋白质，由于其具有促进内皮细胞有丝分裂和血管生长的作用，故命名为血管内皮生长因子（ｖａｓｃｕｌａｒｅｎｄ...     

血管内皮生长因子对缺血性脑损伤的保护作用

血管内皮生长因子(VEGF)可促进内皮细胞增殖、加速新生血管形成,在缺血性脑损伤的病理生理学过程发挥重要的保护作用。最近的研究表明,VEGF除对内皮细胞有保护作用外,可能对神经元也有直接的保护作用。     

血管内皮生长因子对缺血性脑损伤的保护作用

血管内皮生长因子(VEGF)可促进内皮细胞增殖、加速新生血管形成，在缺血性脑损伤的病理生理学过程发挥重要的保护作用。最近的研究表明，VEGF除对内皮细胞有保护作用外，可能对神经元也有直接的保护作用。     

血管内皮生长因子治疗缺血性脑血管病的研究进展

血管内皮生长因子促进新生血管形成的作用逐渐引起人们的重视,为缺血性脑血管病的治疗提供了一个新途径。文章就近年来血管内皮生长因子治疗脑缺血的研究进展作了综述。     

血管内皮生长因子治疗缺血性脑血管病的研究进展

血管内皮生长因子促进新生血管形成的作用逐渐引起人们的重视，为缺血性脑血管病的治疗提供了一个新途径。文章就近年来血管内皮生长因子治疗脑缺血的研究进展作了综述。     

血管内皮生长因子与缺血性脑血管病

血管内皮生长因子(VEGF)可诱导内皮细胞有丝分裂和体内新生血管形成,引起血管通透性 增加,在胚胎发育、肿瘤的生长和转移、缺血性心脑血管疾病的发病和防治中具有重要意义。文章对 VEGF的生物学作用以及VEGF与缺血性脑血管病的关系进行了综述。     

血管内皮生长因子转染人骨髓间质干细胞

目的观察pcDNA3．1（-）VECF真核表达载体转染骨髓间质干细胞后VEGF mRNA表达及VEGF蛋白质水平的变化。方法脂质体介导pcDNA3．1（-）VEGF质粒转染体外培养的人骨髓间质干细胞,荧光显微镜观察转染效果,RT-PCR方法检测转染后骨髓间质干细胞VEGF mRNA表达水平,免疫印迹法半定量检测转染后骨髓间质干细胞VEGF蛋白质水平。结果荧光显微镜提示脂质体介导质粒转染体外培养的骨髓间质干细胞成功,且效率较高;与对照组相比,VEGF mRNA及蛋白质表达水平在pcDNA3．1（-）VEGF转染组显著增高,空载体转染组元明显变化。结论pcDNA3．1（-）VEGF质粒转染骨髓间质干细胞,可提高骨髓间质干细胞VEGF mRNA表达水平,上调其VEGF蛋白质水平。     

血管内皮生长因子与缺血性脑血管病

血管内皮生长因子(VEGF)可诱导内皮细胞有丝分裂和体内新生血管形成，引起血管通透性增加，在胚胎发育、肿瘤的生长和转移、缺血性心脑血管疾病的发病和防治中具有重要意义。文章对VEGF的生物学作用以及VEGF与缺血性脑血管病的关系进行了综述。     

血管内皮生长因子与缺血性脑卒中的研究进展

<正>脑卒中包括缺血性脑卒中和出血性脑卒中,血管内皮生长因子(vascular endothelial growth factor,VEGF)是缺血性脑卒中的研究热点和潜在靶点。近年来发现,VEGF在缺血性脑卒中起重要作用。我们将探讨脑缺血诱导VEGF及其在缺血性脑卒中的病理生理作用,以及VEGF在缺血性脑卒中治疗方面的研究进展。1 VEGF概况VEGF是在血管发生和血管生成中扮演不同角色的强效生长因子。VEGF在肿瘤微血管通透性中作为促渗透因     

血管内皮生长因子的血管新生疗法治疗缺血性心血管疾病

VEGF是内皮细胞特异的有丝分裂原，有促进内皮细胞增生，增强血管通透性，加速新血管形成的作用，本文对VEGF及其对缺血性心血管疾病的治疗方面作一综述。     

血管内皮生长因子与动脉粥样硬化

血管内皮生长因子(VEGF)因其潜在的治疗前景引起了国内外的广泛关注。然而,近年来研究发现VEGF可促进动脉粥样硬化的发生和发展。文章就VEGF的分子特征、受体、表达调控、功能及其与动脉粥样硬化的关系作了综述。     

POEMS综合征血清血管内皮生长因子检测意义

目的探讨血清血管内皮生长因子(VEGF)在POEMS综合征中的临床意义。方法采用ELISA方法检测POEMS综合征组(36例)、疾病对照组(多发性骨髓瘤29例、格林巴利综合征7例共36例)、正常对照组(36例)的血清VEGF浓度,进行组间比较,并与临床资料进行相关性分析。结果 POEMS综合征组血清VEGF浓度为(982.06±611.49)pg/ml,显著高于疾病对照组[(364.22±264.37)pg/ml]和正常对照组[(217.37±87.74 pg/ml)],P<0.001。VEGF诊断POEMS综合征曲线下面积为0.902,VEGF Cutoff值为360.62 pg/ml,敏感性为0.889,特异性为0.764。POEMS综合征组血清VEGF与肺动脉高压、外周血小板计数相关,与其他临床表现无显著相关性。结论血清VEGF浓度升高是POEMS综合征的一个重要特征,有助于POEMS综合征的诊断;血清VEGF浓度与肺动脉高压有一定相关性,可能是肺动脉高压发病机制之一。     

Role of Vascular Endothelial Growth Factor in Pulmonary Endothelial Cell Injury by Exercise Challenge in Asthmatic Patients

This study was designed to examine the role of vascular endothelial growth factor (VEGF) in pulmonary endothelial cell injury by exercise in asthmatics. Post-exercise circulating thrombomodulin (TM) levels were significantly increased in asthmatics. Moreover, the increase in TM levels with exercise was significantly correlated with VEGF level in induced sputum from asthmatics (r = 0.80, p = 0.0007). After inhaled steroid therapy, post-exercise TM levels were significantly decreased, but the increase in TM levels with exercise was also correlated with VEGF level (r = 0.60, p = 0.01). Thus, pulmonary endothelial cells stimulated by VEGF in asthmatic airways may be sensitive to exercise challenge.     

Role of Vascular Endothelial Growth Factor in Pulmonary Endothelial Cell Injury by Exercise Challenge in Asthmatic Patients

This study was designed to examine the role of vascular endothelial growth factor (VEGF) in pulmonary endothelial cell injury by exercise in asthmatics. Post-exercise circulating thrombomodulin (TM) levels were significantly increased in asthmatics. Moreover, the increase in TM levels with exercise was significantly correlated with VEGF level in induced sputum from asthmatics (r = 0.80, p = 0.0007). After inhaled steroid therapy, post-exercise TM levels were significantly decreased, but the increase in TM levels with exercise was also correlated with VEGF level (r = 0.60, p = 0.01). Thus, pulmonary endothelial cells stimulated by VEGF in asthmatic airways may be sensitive to exercise challenge.     

血管内皮生长因子在脑缺血中的保护机制

血管内皮生长因子（VEGF）是作用最强的血管生成因子之一。研究证明,在脑缺血动物脑内注入外源性VEGF能促进血管生成,但同时在缺血半暗带内会发生“盗血”现象。另一方面,VEGF对中枢神经系统具有神经发生、直接神经营养和神经保护等多重保护作用。从分子水平了解这些神经保护机制,更有益于临床开发治疗脑缺血的措施。     

Vascular Endothelial Growth Factor and Nitric Oxide Serum Levels in Arterial Hypertension

Vascular endothelial growth factor (VEGF) is a specific mitogen for endothelial cells and an inducer of the angiogenic procedure. Endothelial nitric oxide (NO) is a potent vasodilator. Because both are implicated in vascular function, it is possible that they would be significantly affected in arterial hypertension. The aim of the study was the investigation of the levels of the two substances in blood serum and their potential relation in patients with untreated essential arterial hypertension compared to healthy individuals. VEGF levels were found 129.1 ± 135.9 pg/mL in a group of 28 untreated hypertensive patients vs. 209.0 ± 133.3 pg/mL in a group of 28 healthy individuals (p = 0.008). Nitrites and nitrates levels (as an indirect index of calculating NO levels) were also lower in hypertensive patients than in healthy individuals (19.8 ± 9.7 μmol/L vs. 29.6 ± 15.9 μmol/L, p = 0.014). A positive correlation between NOx (nitrites and nitrates levels) and VEGF was found in healthy individuals (r = 0.55, p = 0.003), but there was no correlation in hypertensive patients. The significant decrease of serum VEGF and NO in arterial hypertension and the existence of a correlation between the two substances in healthy subjects that did not exist in the hypertensive patients are findings that need evaluation.     

血小板衍生生长因子—BB对血管内皮细胞、平滑肌细胞及成纤维细胞增殖的影响

目的 观察血小板衍生生长因子—BB对培养的人血管内皮细胞、兔平滑肌细胞和人成纤维细胞增殖的影响。方法 采用培养的人脐静脉血管内皮细胞、兔动脉血管平滑肌细胞和人血管成纤维细胞，应用^3H—TdR掺入方法，观察血小板衍生生长因子—BB对三种细胞DNA合成的影响。结果 血小板衍生生长因子—BB可促进处于静止状态的三种细胞DNA的合成，并呈现出明显的浓度依赖关系，在30ng／ml的浓度时成纤维细胞DNA的合成达到高峰，在40ng／ml的浓度时内皮细胞、平滑肌细胞DNA的合成达到高峰。成纤维细胞、平滑肌细胞分别在PDCF-BB作用24h和36h年到DNA合成的高峰，内皮细胞在48h时DNA合成量最高。结论 血小板衍生生长因子—BB可明显促进培养的人脐静脉血管内皮细胞、兔动脉血管平滑肌细胞和人血管成纤维细胞的增殖。     

子痫时可溶性血管内皮生长因子受体1的变化

目的 研究可溶性血管内皮生长因子受体1(sVEGFR-1)和血管内皮生长因子(VEGF)在子痫前期及子痫患者血清中的浓度变化,探讨sVEGFR-1和VEGF在妊娠期高血压(子痫前期及子痫)中的作用.方法 采用酶联免疫吸附试验(ELISA)分别测定轻度子痫前期(n=9)、重度子痫前期(n=10)及子痫(n=5)患者(子痫组,总共n=24)与正常妊娠妇女(对照组,n=18)外周血清中sVEGFR-1和VEGF的浓度.结果 (1)子痫组各组外周血清中sVEGFR-1水平[子痫前期轻度:(58±7)mg/L、子痫前期重度:(82±15)mg/L、子痫:(96±13)mg/L]明显高于对照组[(11±3)mg/L,P＜0.01],子痫前期重度和子痫组高于子痫前期轻度组(P＜0.05);(2)子痫组各组外周血血清中VEGF水平[子痫前期轻度:(0.37±0.04)mg/L、子痫前期重度:(0.24±0.04)mg/L、子痫:(0.16±0.01)mg/L]明显低于对照组[(0.43±0.04)mg/L,P(0.05～0.01],子痫前期重度和子痫组低于子痫前期轻度组(P＜0.05～0.01);(3)正常妊娠妇女外周血血清中sVEGFR-1水平与妊娠周数成正相关(r=0.508,P＜0.05),子痫前期及子痫组血清中sVEGFR-1水平与妊娠周数无关.结论 外周血中升高的sVEGFR-1和降低的VEGF可能与妊娠期高血压(子痫前期及子痫)的发病有关,并参与了子痫前期及子痫的病理生理过程.