不稳定型心绞痛病人血管性血友病因子与可溶性补体激活产物的变化

目的 探讨不稳定型心绞痛（UA）病人血管性血友病因子（VWF）与可溶性补体激活产物（sC5b-9）水平变化及其与心肌缺血的关系。方法 采用酶联免疫吸附法（ELISA）,对61例健康人（对照组）和82例UA（自发性心绞痛30例,心肌梗死后心绞痛28例,恶化型心绞痛24例）病人血浆VWF、sC5b-9浓度的变化进行了检测。结果UA病人血浆VWF、sC5b-9浓度明显高于对照组,差异有极显著性（t＇=15．277～26．210,P〈0．001）;心绞痛发作时VWF、sC5b-9浓度增高较缓解后更明显（t’=24．462、5．902,P〈0．001）;心绞痛发作时和缓解后sC5b-9与VWF浓度呈正相关（R=0．804、0．782,p〈0．001）;不同类型的心绞痛发作时和缓解后sC5b-9、VWF浓度差异亦具有显著性（F=21．708～152．410．q=3．917～25．630,P〈0．01）;自发性心绞痛病人各指标增高较心肌梗死后和恶化型心绞痛更明显。结论 急性心肌缺血与VWF和sC5b9异常有一定关系。     

不稳定型心绞痛病人IMA与sC5b-9变化及意义

目的探讨不稳定型心绞痛(UA)病人缺血修饰清蛋白(IMA)与可溶性补体激活产物(sC5b-9)水平变化及其与心肌缺血的关系。方法采用酶联免疫吸附(EILSA)法,检测了52例健康人和96例UA病人血清I MA、sC5b-9浓度。结果 UA病人血清IMA、sC5b-9浓度明显高于对照组,差异有极显著性(t′=17.28、24.21,P<0.01);心绞痛发作时IMA、sC5b-9浓度增高较缓解后更明显(t′=24.56、6.94,P<0.01);心绞痛发作时和缓解后,sC5b-9与IMA呈正相关(r=0.813、0.761,P<0.01)。不同类型的心绞痛发作时和缓解后sC5b-9、IMA浓度差异亦具有显著性,自发性心绞痛病人各指标增高较心肌梗死后和恶化劳力性心绞痛更明显(F=22.74~158.47,q=7.55~28.71,P<0.01)。结论急性心肌缺血与IMA和sC5b-9浓度变化有密切关系。     

不稳定型心绞痛病人sCAMS与sC5b-9的变化

目的探讨不稳定型心绞痛(UA)病人可溶性细胞黏附分子(sCAMS)与可溶性补体激活产物(sC5b-9)水平的变化及其意义。方法采用ELISA方法检测36例健康人和110例UA病人血清sCAMS、sC5b-9浓度的变化。结果 UA病人血清可溶性细胞间黏附分子-1(sICAM-1)、可溶性血管细胞间黏附分子-1(sVCAM-1)、sC5b-9浓度明显高于对照组,差异有极显著性(t=4.485～37.314,P<0.001);心绞痛发作时sICAM-1、sVCAM-1、sC5b-9的浓度增高较缓解后更明显(t=5.764～30.638,P<0.001);不同类型的心绞痛病人发作时和缓解后sICAM-1、sVCAM-1、sC5b-9浓度差异也有显著性(F=12.074～709.477,q=3.340～52.308,P<0.05～0.001);自发性心绞痛病人sCAMS、sC5b-9浓度增高较其他类型更明显。心绞痛发作时和缓解后,血清sC5b-9与sICAM-1、sVCAM-1浓度呈正相关(r=0.530～0.703,P<0.001)。结论 UA的发生发展与CAMS和sC5b-9浓度变化有密切关系。     

不稳定型心绞痛患者血管活性物质变化的临床意义

目的　探讨不稳定型心绞痛 (UA)发作时血浆降钙素基因相关肽 (CGRP)及内皮素 (ET)浓度变化的临床意义。方法　采用放射免疫法测定 38例UA、 2 6例稳定型心绞痛 (SA)和 2 5例正常人血将CGRP及ET浓度。结果　UA患者心绞痛发作时CGRP、ET明显高于SA发作时和正常对照组 (P <0 0 5 ,P <0 0 1) ;不同类型UA发作时 ,CGRP虽无显著变化 ,但CGRP/ET比值自发型 >初发型 >恶化型 ;UA缓解时升高的CGRP、ET均显著下降。结论　UA患者血浆CGRP、ET变化对UA发生有重要影响。     

动态心电图监测冠心病无症状心肌缺血结果分析

目的　探讨冠心病无症状性缺血的心电图表现。方法　对 70例冠心病患者用动态心电图进行 2 4h监测。 62例 ( 88 6% )有心肌缺血发作 ,总计发作 2 0 2阵次 ,其中 150阵次 ( 74 3% )为无症状心肌缺血发作 ,陈旧性心梗组与稳定型劳力性心绞痛组比较。结果　两组发生率无显著性 (P值 >0 5) ,无症状与有症状心肌缺血的ST段压低程度及持续时间的差异无显著性 (P值 >0 5)。结论　无症状心肌缺血发作有昼夜规律 ,严重心律失常发生率陈旧性心梗组比稳定型劳力性心绞痛组明显增高 (P <0 0 1)。     

不稳定性心绞痛患者血清CRP和TnI含量的测定及临床意义

目的　探讨C -反应蛋白 (CRP)和心肌肌钙蛋白I(TnI)在不稳定性心绞痛 (UA)发病机制中的意义及对预后判断的价值。方法　测定 30例UA患者和 11例稳定性心绞痛 (SA)患者血清CRP和TnI,并与CK -MB相比较 ,同时观察住院期间及随访 1～ 3个月中心脏事件的发生。结果　UA组患者血清CRP含量为 (8.5 6± 2 .0 5 )mg L ,与SA组 (2 .31± 0 .5 9)mg L相比有极显著性差异 (P =0 .0 0 5 ) ;UA组患者血清TnI含量为 (4 .2 5± 1.32 )ng ml,与SA组(0 .2 7± 0 .11)ng ml相比有显著性差异 (P =0 .0 3)。UA组患者血清CRP含量与TnI含量呈一定程度的相关性 (r =0 .5 7,P =0 .0 0 6 )。伴有CRP及TnI升高的UA患者住院期间心绞痛发作次数与正常患者相比明显增多 (P分别为0 .0 0 3和 0 .0 2 ) ,心肌梗死的发生率增高。结论　炎症反应是UA发病的一个重要因素 ;在UA中存在微小心肌损伤 ,TnI是判断微小心肌损伤的敏感指标 ;CRP和TnI可以作为判断UA患者预后的敏感指标     

原发性高血压病人血清C-反应蛋白和可溶性细胞间黏附分子-1浓度的变化

①目的　探讨原发性高血压 (EH)病人血清C 反应蛋白 (CRP)和可溶性细胞间黏附分子 1(sICAM 1)的变化及其与并发症的关系。②方法　采用酶联免疫吸附法 (ELISA)对 14 9例EH病人和 72例健康人血清CRP和sICAM 1浓度变化进行检测。③结果　EH病人CRP和sICAM 1浓度明显增高 ,与对照组比较差异有显著性 (t′ =37.35 9、2 7.12 7,P <0 .0 0 1) ;不同病期EH病人血清CRP和sICAM 1浓度比较差异亦具有显著性 (F =2 5 5 .935、134.16 2 ,q =10 .879～ 31.5 96 ,P均 <0 .0 1) ,且以Ⅲ期EH病人血清CRP和sICAM 1浓度增高最明显。EH病人血清CRP与sICAM 1浓度呈正相关 (r =0 .72 9,P <0 .0 0 1)。④结论　血清CRP和sICAM 1浓度增高参与EH的发生与发展 ,且与其病情严重程度有关。     

不稳定性心绞痛患者肌钙蛋白I及C反应蛋白的临床意义

【目的】探讨不稳定性心绞痛 (UA)病变程度及其预后与血浆肌钙蛋白I (cTnI)及C反应蛋白(CRP)水平的关系。【方法】测定 5 8例经选择性冠状动脉造影证实为冠心病的患者血浆cTnI及CRP浓度 ,并与对照组 (健康者 5 0例 )相比较 ,分析cTnI及CRP的临床意义。【结果】①血浆cTnI及CRP浓度在对照组、稳定性心绞痛组 (SA)、UA组分别为 :(0 4 2± 0 0 6 ) μg/L ,(2 2 93± 10 8) μg/L ;(0 5 9± 0 13) μg/L ,(5 2 16± 32 8) μg/L ;(1 92± 0 5 8) μg/L ,(13811± 86 1) μg/L ;SA组及UA组明显高于对照组 (分别为P <0 0 5 ,P<0 0 1)。②观察 4w ,在UA组心脏事件发生率为 35 5 % ,明显高于SA组 (P <0 0 5 )。③cTnI与CRP具有一定相关性 (r =0 5 1,P <0 0 5 )。【结论】血浆cTnI及CRP水平在临床评价UA病情程度及预后方面具有一定的指导意义     

葛根素对不稳定型心绞痛病人胰岛素抵抗及纤溶活性的影响

①目的　探讨葛根素对不稳定型心绞痛 (UA)病人胰岛素抵抗 (IR)及纤溶活性异常的影响。②方法6 9例UA病人随机分为常规治疗组 (31例 )和葛根素治疗组 (38例 ,于常规治疗基础上加用葛根素治疗 ) ,均于治疗前及治疗结束时检测血糖、血浆胰岛素 (FINS)、纤溶指标 ,计算胰岛素敏感性指数 (ISI)。选择 30例健康人作为对照组。③结果　与对照组比较 ,UA组FINS浓度增高 ,ISI降低 ,组织型纤溶酶原激活物 (tPA)活性降低 ,纤溶酶原激活物抑制物 1(PAI 1)活性升高 (t=2 .139～ 3.2 0 7,P <0 .0 5 ,0 .0 1)。葛根素组治疗后 ,FINS浓度降低 ,ISI增高 ,tPA活性增高 ,PAI 1活性下降 (t=2 .116～ 3.6 36 ,P <0 .0 5 ,0 .0 1)。UA组治疗前及葛根素组治疗后FINS ,ISI与PAI 1之间存在高度线性相关 (r =0 .35 1,- 0 .332 ,0 .4 2 7,- 0 .4 5 2 ,P <0 .0 1)。④结论　葛根素可改善UA病人的IR及与IR密切相关的纤溶活性异常。     

冠心病患者血清高敏C-反应蛋白、血脂水平研究

目的　探讨血清中高敏C 反应蛋白、血脂浓度与冠心病 (CoronaryHeartDisease,CHD)的关系及临床意义。方法　测定CHD患者共 1 1 9例 ,其中不稳定型心绞痛 (UA)患者 5 3例 ,稳定型心绞痛 (SA)患者 6 6例及正常对照组 30例 ,血清高敏C 反应蛋白 (High SensitivityC ReactiveProtein ,Hs CRP)、总胆固醇 (TC)、甘油三酯 (TG)、高密度脂蛋白胆固醇 (HDL C)、低密度脂蛋白胆固醇 (LDL C)、载脂蛋白A1 (apoA1 )、载脂蛋白B(apoB)浓度。结果　UA、SA患者的血清Hs CRP含量显著高于正常对照组 (P<0 .0 1 ) ,其中UA组患者血清Hs CRP水平又明显高于SA组患者 (P <0 .0 1 ) ;UA患者apoA1 浓度明显低于正常对照组 (P <0 .0 1 ) ,SA患者apoA1 浓度较正常对照组低 (P <0 .0 5 ) ,其余结果无差别。结论　血清Hs CRP、apoA1 水平与冠心病 ,尤其是冠心病不稳定型心绞痛密切相关     

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.