血管内皮生长因子及C反应蛋白与高血压颈动脉粥样硬化的关系

目的:研究血管内皮生长因子(Vascular endothelial growth factor,VEGF)及C反应蛋白(C-reactive protein,CRP)与原发性高血压患者颈动脉粥样硬化的程度之间的关系。方法:将60例原发性高血压患者按颈动脉粥样硬化的程度分为颈动脉的内膜中层厚度(Intima media thickness,IMT)正常组,IMT增厚组和斑块形成组,分别测定其VEGF和CRP的水平,分析两者与动脉粥样硬化程度的关系。结果:IMT增厚组的VEGF和CRP的水平显著高于IMT正常组(P<0.01),斑块形成组的VEGF和CRP的水平显著高于IMT增厚组(P<0.01)。结论:VEGF和CRP水平与原发性高血压患者颈动脉粥样硬化的程度相关,血VEGF和CRP水平可作为原发性高血压患者病情判断的观察指标。     

血清同型半胱氨酸水平与颈动脉粥样硬化的关系探讨

目的 探讨血清同型半胱氨酸水平(Hcy)与颈动脉粥样硬化程度的关系.方法 选择住院治疗的82例缺血性脑卒中患者,经彩色多普勒B超检查的结果分为颈动脉正常组、颈动脉内膜-中层增厚组、颈动脉粥样硬化斑块组,并测定血清同型半胱氨酸水平,进行组间比较.结果 颈动脉粥样硬化斑块组的血清同型半胱氨酸水平明显高于颈动脉正常组及颈动脉内膜-中层增厚(IMT)组,差异有统计学意义(P＜0.05);颈动脉内膜-中层增厚组与颈动脉正常组血清同型半胱氨酸水平比较,差异有统计学意义(P＜0.05).结论 血清同型半胱氨酸水平高低与颈动脉粥样硬化程度呈正相关,血清同型半胱氨酸水平(Hcy)越高,颈动脉粥样硬化斑块、狭窄越严重.     

原发性高血压患者超敏C反应蛋白和血尿酸的表达及其与硕动脉粥样硬化的关系

目的探讨原发性高血压患者超敏C反应蛋白（hs—CRP）和血尿酸的表达及其与颈动脉粥样硬化的关系。方法选取102例原发性高血压患者,采用彩色多普勒超声进行颈总动脉内-中膜厚度（IMT）测量,确定其颈动脉粥样硬化发生情况。并根据超声检查结果,对不同患者[颈动脉粥样硬化者（包括斑块形成者、IMT增厚者）及IMT正常者]的甘油三酯（TG）、总胆固醇（TC）、血压、血hs—CRP、尿酸等进行检测,并作组间比较及血hs—CRP和尿酸与颈动脉粥样硬化的相关性分析。结果超声检查结果示颈动脉粥样硬化患者78例。颈动脉粥样硬化患者与IMT正常者TC、TG、收缩压及舒张压均无明显差异（P〉0．05）,但颈动脉粥样硬化患者hs—CRP浓度和尿酸水平均明显高于IMT正常者（均P〈0.05）。斑块形成者及IMT增厚者血hs—CRP浓度和尿酸水平均显著高于IMT正常者f均P〈0．01）;而且斑块形成者血hs—CRP浓度明显高于IMT增厚者（P〈0．05）,但尿酸水平与IMT增厚者并无明显差异（P〉0.05）。hs—CRP浓度及血尿酸水平均与IMT呈明显正相关（均P〈0．05）。结论hs—CRP及血尿酸与原发性高血压病患者的颈动脉粥样硬化程度有关。     

原发性高血压患者颈动脉粥样硬化与血尿酸及C反应蛋白的关系

目的:探讨原发性高血压患者颈动脉粥样硬化的程度与血尿酸及C反应蛋白的关系.方法:122例原发性高血压患者按颈动脉粥样硬化的程度分为内膜中膜增厚组(Ⅰ组),斑块形成组(Ⅱ组)和管腔狭窄组(Ⅲ组),分别测定其血尿酸及C反应蛋白的浓度,观察血尿酸与C反应蛋白的关系.结果:斑块形成组和管腔狭窄组的血尿酸及C反应蛋白的浓度显著高于内膜中膜增厚组(P＜0.05),血尿酸亦与C反应蛋白呈正相关(r=0.45,P＜0.01).结论:血尿酸及C反应蛋白与颈动脉粥样硬化的程度正相关.血尿酸可能是通过促炎症作用导致动脉粥样硬化.     

原发性高血压患者血清CRP与颈动脉粥样硬化的关系

目的:探讨原发性高血压患者颈动脉粥样硬化与血清C-反应蛋白(CRP)的相关性。方法:对64例原发性高血压患者进行颈动脉粥样硬化检测及血清CRP测定,对测定结果进行统计学分析。结果:根据颈动脉IMT值,64例高血压中中颈动脉粥样硬化者50例,无颈动脉粥样硬化者14例,前者血清CRP平均水平明显高于后者(P<0.05)。有颈动脉斑块的患者血清CRP显著高于IMT正常者和IMT增厚患者(P<0.05)。结论:血清CRP对高血压颈动脉粥样硬化的早期发现和早期防治有积极指导意义,值得临床推广应用检测。     

维生素D3水平及总抗氧化能力与颈动脉粥样硬化的相关性研究

目的 探讨维生素D3(VitD3)水平及总抗氧化能力(TAOC)与颈动脉粥样硬化的相关性.方法 选取80例颈动脉粥样硬化患者作为观察对象,并选择50例健康者作为对照,比较两组VitD3、TAOC水平.然后分别按照颈动脉内膜中层厚度(IMT)、颈动脉狭窄程度进行分组,比较不同颈动脉IMT、不同颈动脉狭窄程度之间VitD3、TAOC水平,分析颈动脉粥样硬化患者血清VitD3与TAOC水平相关性.结果 与对照组相比,颈动脉粥样硬化组患者VitD3、TAOC水平显著降低,比较差异有统计学意义(P＜0.05).进行分组后,随着颈动脉IMT增厚及狭窄程度的加重,VitD3、TAOC水平显著降低,比较差异有统计学意义(P＜0.05).颈动脉粥样硬化患者血清VitD3与TAOC水平呈正相关(r=0.586,P＜0.05).结论 VitD3、TAOC水平与颈动脉粥样硬化呈正相关,与健康人群相比,颈动脉粥样硬化患者VitD3、TAOC水平显著降低,且随着颈动脉IMT增厚及狭窄程度加重而明显下降.     

原发性高血压患者颈动脉粥样硬化的超声评价

目的 评价彩色多普勒超声在原发性高血压患者颈动脉粥样硬化中的诊断价值.方法 以原发性高血压患者及同期健康体检者各45例分别作为研究组与对照组,所有研究对象均行颈动脉彩色多普勒超声检查,分析颈总动脉血流动力学.结果 对照组中57.78％出现颈动脉增厚(＞1.0 nn),粥样斑块率6.67％;研究组88.89％发生颈动脉增厚,粥样斑块率48.89％.研究组CADIA、IMT及斑块检出率显著高于对照组,差异具有统计学意义(P＜0.05).研究组VS、Vd及Vm显著低于对照组,PI、RI显著高于对照组,差异均有统计学意义(P＜0.05).结论 原发性高血压是诱发颈动脉粥样硬化的重要因素之一,彩色多普勒超声不仅可以有效诊断机体血管内膜增厚情况,还可分析血流动力学情况,为粥样硬化的早期诊断提供数据支持,值得临床推广应用.     

80例原发性高血压患者左心室肥厚与颈动脉粥样硬化的关系分析

目的 探讨原发性高血压(EH)患者左心室肥厚(LVH)与颈动脉粥样硬化之间的关系.方法 用彩色多普勒超声诊断方法 检测80例EH患者的左心室各有关指数与颈动脉内-中膜厚度(IMT),计算左室重量指数(LVMI).根据LVMI,将EH患者分为LVH组和非左室肥厚(NLVH)组.结果 EH伴LVH组,颈动脉IMT及斑块检出率明显高于NLVH组,差异有统计学意义(P＜0.05,P＜0.01).EH患者IMT与LVMI呈显著正相关(γ=0.302,P＜0.05).结论 EH患者左心室肥厚与颈动脉粥样硬化的发生密切相关.     

老年高血压病患者颈动脉粥样硬化与血清同型半胱氨酸、脂蛋白(a)的关系

目的探讨血清同型半胱氨酸(homocysteine,Hcy)、脂蛋白(a)[lipoprotein(a),Lp(a)]水平的变化与老年高血压病患者颈动脉粥样硬化程度的关系。方法将60例高血压病患者根据颈动脉粥样硬化的程度分为3组:颈动脉内膜中层厚度(intima-media thickness,IMT)正常组(IMT≤0.9mm,颈动脉IMT正常组,16例)、颈动脉IMT(IMT 1.0~1.2mm)增厚组(19例)和颈动脉IMT(IMT≥1.3mm)斑块形成组(25例)。使用全自动生化分析仪、采用乳胶浊度法测定3组患者Lp(a)水平;使用全自动免疫分析仪、采用化学发光法测定3组患者Hcy水平。结果颈动脉IMT增厚组、颈动脉IMT斑块形成组血清Hcy、Lp(a)水平均明显高于颈动脉IMT正常组(均P<0.05),颈动脉IMT斑块形成组血清Hcy、Lp(a)水平均明显高于颈动脉IMT增厚组(均P<0.05)。颈动脉IMT增厚组、颈动脉IMT斑块形成组血清Hcy水平与血清Lp(a)水平均呈正相关(r=0.65、0.64,均P<0.05)。结论老年高血压病患者血清Hcy、Lp(a)水平升高与颈动脉粥样硬化密切相关。     

老年高血压病患者颈动脉粥样硬化与血清高敏C反应蛋白、脂蛋白(a)及尿酸关系

目的 探讨血清高敏C反应蛋白、脂蛋白(a)及尿酸水平变化与老年高血压病患者颈动脉粥样硬化程度的关系.方法 选取老年高血压病患者64例.根据颈动脉粥样硬化的程度分为颈动脉内膜中层的厚度(IMT)正常组、颈动脉IMT增厚组及颈动脉斑块形成组3组.分别测定血清高敏C反应蛋白、脂蛋白(a)及尿酸在各组血清中的浓度变化,对其结果进行统计分析.结果 随着内膜中层厚度增加,血清高敏C反应蛋白、脂蛋白(a)及尿酸水平相应增高,3组间比较差异有统计学意义(P＜0.05).老年高血压病患者伴有颈动脉粥样硬化(IMT增厚组和斑块形成组)者血清高敏C反应蛋白、脂蛋白(a)及尿酸进行相关性分析,结果表明三者相互之间呈正相关关系(P＜0.05).结论 老年高血压病患者的血清高敏C反应蛋白、脂蛋白(a)及尿酸水平变化与颈动脉粥样硬化关系密切.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.