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.     

血管内皮生长因子及富含半胱氨酸蛋白61与高血压颈动脉粥样硬化的关系

目的:研究血清血管内皮生长因子(vascular endothelial growth factor,VEGF)及富含半胱氨酸蛋白61 (cysteine-rich 61,CYR61)与原发性高血压患者颈动脉粥样硬化程度之间的关系.方法:收集2011年6月～2013年4月就诊的120例原发性高血压患者,根据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3组血清VEGF和CYR61浓度,分析其与颈动脉粥样硬化程度的关系.结果:血清VEGF和CYR61浓度:斑块形成组均显著高于其他两组(P均＜0.05),IMT增厚组显著高于IMT正常组(P＜0.05);高血压颈动脉粥样硬化(IMT增厚组和斑块形成组)患者血清VEGF浓度与CRY61浓度呈显著正相关(r=0.452,P＜0.05),VEGF、CRY61浓度均与IMT呈显著正相关(r分别为0.877、0.613,P均＜0.05).结论:血清VEGF和CYR61浓度与颈动脉粥样硬化的程度呈正相关,其可能作为原发性高血压患者颈动脉粥样硬化程度的判断指标.     

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.     

血浆纤维蛋白原与颈动脉粥样硬化相关性研究

目的 探讨血浆纤维蛋白原(Fg)与颈动脉粥样硬化的关系.方法 选择104例颈动脉粥样硬化性斑块患者,根据斑块性质分为稳定斑块组52例与不稳定斑块组52例;根据颈动脉狭窄程度分为:轻度狭窄组24例、中度狭窄组42例、重度狭窄组38例;同时选取52例健康人群做对照.测定各组Fg水平与颈动脉内中膜厚度(IMT),并进行分析对比.结果 不稳定斑块组与稳定斑块组IMT、Fg水平均高于健康对照组(P＜0.05或P＜0.01);不稳定斑块组IMT、Fg水平高于稳定斑块组(P均＜0.05);颈动脉硬化狭窄组IMT、Fg水平均高于健康对照组(P＜0.05或P＜0.01);各颈动脉硬化狭窄组IMT、Fg水平差异显著(P＜0.05),随着狭窄程度越重,IMT及Fg含量越高.结论 颈动脉硬化斑块稳定性与狭窄程度均与Fg水平相关,Fg可能通过增加IMT影响颈动脉硬化斑块的稳定性与狭窄程度.     

老年高血压颈动脉粥样硬化与尾加压素Ⅱ相关性研究

目的:研究尾加压素Ⅱ(UⅡ)与老年高血压患者颈动脉粥样硬化的相关性。方法:采用放免法测定130例老年高血压患者及72例健康老年人血浆UⅡ浓度,并使用颈动脉超声测定颈动脉内中膜厚度(IMT),根据IMT程度将高血压患者分为IMT0、IMT1、IMT2三组。结合UⅡ、IMT对各组进行比较和综合分析。结果:高血压组颈动脉粥样硬化发生率、IMT以及血浆UⅡ水平均显著高于健康对照组组(P<0.05或P<0.01);高血压患者血浆UⅡ水平随着IMT增厚程度的加重而升高,高血压分组三组之间UⅡ水平组间比较有显著性差异(P<0.01)。结论:血浆UⅡ水平升高与老年高血压患者动脉硬化发病密切相关。     

围绝经期妇女颈动脉病变与血脂相关性研究

目的:探讨围绝经期妇女颈动脉粥样硬化及内中膜厚度与血脂水平的关系.方法:随机选取进行健康体检的围绝经期妇女412名,依据其血脂检测结果分为血脂异常组199名,血脂正常组213名,利用二维彩色多普勒超声显像仪检测颈动脉内中膜厚度,并观察颈动脉粥样硬化斑块的发生情况.分析血压、体重指数与血脂水平的关系.结果:围绝经期妇女中颈动脉内中膜(IMT)增厚检出率达19.42%,粥样斑块形成以及IMT增厚合并粥样斑块形成率达31.80%.血脂异常组中受检者的血压、体重指数、IMT以及粥样斑块的发生率均高于血脂正常组(P＜0.01,P＜0.05).在血脂异常组中,以高甘油三酯血症致动脉粥样硬化发生率最高,与其他类型血脂异常比较差异显著(P＜0.05).结论:颈动脉粥样硬化及IMT增厚在围绝经期妇女中有较高的发生率,尤其在血脂异常的妇女中发生率更高.     

颈动脉粥样硬化与冠状动脉狭窄的关系

目的 研究颈动脉粥样硬化与冠状动脉狭窄的关系.方法 回顾性分析疑诊冠心病接受冠脉造影检查病例186例,记录颈动脉内中膜厚度(IMT)及斑块情况,计算斑块积分.结果 冠心病组颈动脉IMT和斑块积分明显高于非冠心病组(P<0.01).随着冠脉病变支数增加和狭窄程度加重,颈动脉IMT增厚,斑块加重(P<0.05或P<0.01).结论 颈动脉IMT和斑块可用于辅助预测冠脉狭窄程度和病变支数.     

彩色多普勒超声对颈动脉粥样硬化与脑梗塞相关性的研究应用

目的 通过彩色多普勒超声对颈动脉粥样硬化的检测,评价颈动脉粥样硬化与脑梗塞的关系.方法 采用高频彩色多普勒超声检查55例脑梗塞患者的颈动脉,测量其内径、内-中膜厚度(IMT)、血流速度等参数,观察斑块的有无及形成情况,并以50例健康者作为对照组.结果 55例脑梗塞患者中,颈动脉粥样硬化斑块形成、管腔狭窄等血管异常者45例,检出率占87%;对照组中有IMT增厚和斑块形成者9例,占18%,二者比较有显著差异(P＜0.01).结论 颈动脉粥样硬化与脑梗塞密切相关,颈动脉粥样硬化斑块是引起脑梗塞的重要原因.高分辨力彩色多普勒超声诊断技术能早期发现颈动脉粥样硬化,有效判断狭窄程度,并对斑块进行分型,有利于临床选择治疗方案及估计预后,预防脑梗塞,提高病变治愈率.     

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。     

颈动脉粥样硬化与冠心病的相关性分析

目的:探讨颈动脉粥样斑块与冠心病的相关性.方法:选取2013-10 ～ 2014-01在我院收治的冠心病患者98例,根据冠脉造影检查判断冠状动脉粥样硬化病变情况,根据冠脉病变支数将患者分为单支病变组、双支病变组和多支病变组;根据冠脉斑块狭窄,分为轻、中、重度组;超声测量颈动脉内膜中层厚度(IMT),粥样斑块情况.比较各组间IMT以及斑块发生情况.结果:颈动脉内膜中层厚度(IMT)以及斑块率与冠脉病变程度呈正相关性(P＜0.05).结论:颈动脉粥样硬化与冠心病有显著相关性.颈动脉IMT值得检查以及斑块率可以预测冠心病粥样硬化病变程度.     

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.