急性冠脉综合征患者血浆sCD40L水平及其与IL-6关系研究

目的观察不同类型的冠心病患者的血浆可溶性CD40配体(sCD40L)的水平变化及其与白介素6(IL-6)之间的相互关系,探讨急性冠脉综合征(ACS)的发病机制和临床识别和预测的炎症因子指标。方法采用酶联免疫吸附法分别测定对照组28例、和稳定性心绞痛(SCHD)28例和急性冠脉综合征32例外周血浆的sCD40L、IL-6和高敏C反应蛋白(Hs-CRP)的水平。结果在ACS组sCD40L(2.12±1.45)ng/mL水平显著高于对照组sCD40L(0.52±0.44)ng/mL和SCHD组(0.68±0.47)ng/mL,P<0.01有显著统计学差异;sCD40L水平在SCHD组稍高于对照组,P>0.05差异无统计学意义。在ACS组中sCD40L水平与IL-6水平呈显著正相关(r=0.872,P<0.01)。结论本研究结果表明急性冠脉综合征患者早期外周血sCD40L水平明显升高,提示可能与急性冠脉综合征发生有关,是动脉粥样硬化斑块不稳定的标志;CD40与CD40L相互作用在动脉粥样硬化斑块不稳定发生起着重要作用,可能与其通过上调IL-6表达有关而导致斑块破裂、血栓形成。     

冠心病患者血清sCD40L和MMP-9的变化及相关性

目的：观察不同类型冠心病患者中可溶性CD40配体（sCD40L）水平的变化及其与金属蛋白酶-9(MMP-9)之间的关系, 进一步探讨急性冠脉综合征临床识别和预测的炎症指标。方法：采用酶联免疫吸附法测定79例冠心病患者血清sCD40L,MMP-9的浓度。结果：急性冠脉综合征患者sCD40L水平［在不稳定心绞痛(UAP)和急性心肌梗死组(AMI)分别为(1.96± 0.84) ng/ml,(2.23 ±0.99 )ng/ml］显著高于稳定性冠心病组(1.20±0.76)ng/ml (P<0.05),而在UAP和AMI组间比较差异无显著性（P>0.05）,sCD40L水平与MMP-9呈显著正相关(r=0.401, P<0.01)。sCD40L水平与甘油三酯呈正相关(r=0.254, P=0.039),与高密度脂蛋白胆固醇呈负相关(r=-0.234, P=0.031)。结论：急性冠脉综合征患者外周血清sCD40L和MMP-9水平升高,可能与急性冠脉综合征的发生有关,可能是动脉粥样硬化不稳定的标志,CD40L可能通过促使MMP-9的表达而促发急性冠脉综合征。     

冠心病患者血清sCD40L的检测及其临床意义

目的 :观察不同类型冠心病患者中可溶性CD4 0配体 (sCD4 0L)的变化 ,并探讨其与血脂各组份的关系。方法 :采用酶联免疫吸附法测定 12 9例冠心病患者 (急性心肌梗死组 4 6例 ,不稳定性心绞痛组 37例 ,稳定性冠心病组 4 6例 )及 30名正常对照者血清sCD4 0L的浓度。结果 :急性冠脉综合征患者sCD4 0L水平 [急性心肌梗死组和不稳定心绞痛组分别为 (2 .99± 2 .19) ,(2 .2 3± .0 .6 7)ng/ml]显著高于稳定性冠心病组 [(1.12± 0 .4 2 )ng/ml,P <0 .0 5 ]和正常对照组 [(0 .89± 0 .5 5 )ng/ml,P <0 .0 5 ],而在稳定性冠心病组和NS组间差异无显著性 ;sCD4 0L水平与ApoB10 0 (r =0 .15 9,P =0 .0 4 6 )呈正相关 ,与高密度脂蛋白胆固醇呈负相关 (r = 0 .192 ,P =0 .0 15 )。结论 :急性冠脉综合征患者外周血sCD4 0L水平明显升高 ,这可能与急性冠脉综合征的发生有关 ,且可作为动脉粥样硬化斑块不稳定的一个标志。     

丹红注射液治疗对急性冠脉综合征患者血清sCD4OL的影响

目的 观察丹红注射液治疗急性冠脉综合征患者血清可溶性,CD40L(sCD4OL)的变化,了解其对斑块稳定和免疲炎症抑制的影响.方法 选择我院76例急性冠脉综合征患者,随机分为对照组(n=37)和丹缸注射液治疗纽(n=39),对照组患者给予扩冠、抗凝、调脂,溶檄(或PCI术)治疗,治疗组患者在此基础上加用丹红注射液,疗程均为2周.测定治疗前后血清sCD40L水平的变化.结果 丹红注射液治疗组血清sCD4OL水平(2.14±0.37ng/mL)较治疗前(3.46±0.42ng/mL)明显下降(P＜0.01),与对照组治疗前后(3.39±0.49ng/mL,2.82±0.57ng/mL)比较有显著统计学差异(P＜0.01).结论 急性冠脉综合征患者早期予以丹红注射液治疗,可明显降低sCD40L的水平,有利于动脉粥样硬化斑块的稳定,从而改善该病进程.     

血清炎症因子与急性冠脉综合征的关系

目的:研究血清炎症因子水平与冠状动脉粥样硬化斑块稳定性之间的相互关系。方法:以急性冠脉综合征患者45例(其中急性心肌梗死23例,不稳定型心绞痛22例)、稳定型心绞痛患者22例为研究对象,同时以健康者为对照,测定其高敏C反应蛋白(hs-CRP)、可溶性白细胞分化抗原40配体(sCD40L)、基质金属蛋白酶-9(MMP-9)水平。结果:急性冠脉综合征患者的血清hs-CRPs、CD40L、MMP-9水平显著高于稳定型冠心病者,均有统计学差异(均P<0.05);三个炎症因子相互之间均显著相关(均P<0.05)。结论:急性冠脉综合征患者血清炎症因子水平明显升高,其升高有助于临床对动脉粥样硬化不稳定斑块的检测和诊断。     

脑梗死患者血浆sCD40L和可溶性血管黏附分子水平的变化及意义

目的探讨脑梗死患者血浆sCD40L含量变化及其与血管黏附分子的关系,以及对脑梗死发生、发展的影响。方法采用酶联免疫吸附法(ELISA)测定70例急性期脑梗死患者血浆sCD40L、可溶性细胞间黏附分子-1(sICAM-1)和血管细胞黏附分子-1(sVCAM-1)水平,并与30例其他疾病对照组及40例正常对照组比较。结果脑梗死患者血浆sCD40L水平(15.8±4.9)ng/mL,显著高于其他疾病对照组(4.4±2.5)ng/mL及正常对照组(3.5±1.7)ng/mL,差异有显著意义(P<0.01)。大梗死灶组血浆sCD40L(20.5±6.1)ng/mL明显高于中梗死灶组(14.8±4.9)ng/mL和小梗死灶组(11.5±4.0)ng/mL,P<0.01。sCD40L增高程度与神经功能缺损程度密切相关。合并高血压、糖尿病和吸烟患者血浆sCD40L水平明显高于非高血压、糖尿病和吸烟患者(P<0.01)。相关分析:脑梗死时sCD40L与可溶性细胞间黏附分子水平呈显著相关(r=0.593,P<0.01),与sVCAM-1呈正相关(r=0.109,P<0.05)。结论脑梗死患者血浆sCD40L水平显著升高,急性期监测血浆sCD40L水平变化有助于判断病情轻重和病灶大小。sCD40L可能通过上调血管细胞黏附分子表达参与了脑梗死炎症反应过程。     

急性冠脉综合征患者血浆sCD40L与MMP-9水平改变的临床意义

目的:探讨可溶性CD40L(sCD40L)及基质金属蛋白酶(MMP-9)预测急性冠脉综合征(ACS)的价值.方法:采用酶联免疫吸附法(ELISA)测定ACS组(45例)、稳定型心绞痛(SAP)组(42例)、正常对照组(40例)3组患者血清sCD40L及MMP-9水平.结果:ACS组患者血清sCD40L及MMP-9水平显著高于SA组和正常对照组(P<0.01).结论:ACS患者血清sCD40L及MMP-9水平升高,可能是动脉粥样硬化斑块不稳定的标志物.     

丹红注射液治疗对急性冠脉综合征患者血清sCD40L的影响

目的观察丹红注射液治疗急性冠脉综合征患者血清可溶性,CD40L（sCD40L）的变化,了解其对斑块稳定和免疫炎症抑制的影响。方法选择我院76例急性冠脉综合征患者,随机分为对照组（n=37）和丹红注射液治疗组（n=39）,对照组患者给予扩冠、抗凝、调脂、溶栓（或PCI术）治疗,治疗组患者在此基础上加用丹红注射液,疗程均为2周。测定治疗前后血清sCD40L水平的变化。结果丹红注射液治疗组血清sCD40L水平（2.14±0.37ng/mL）较治疗前（3.46±0.42ng/mL）明显下降（P〈0.01）,与对照组治疗前后（3.39±0.49ng/mL,2.82±0.57ng/mL）比较有显著统计学差异（P〈0.01）。结论急性冠脉综合征患者早期予以丹红注射液治疗,可明显降低sCD40L的水平,有利于动脉粥样硬化斑块的稳定,从而改善该病进程。     

冠状动脉粥样硬化性心脏病患者单核细胞CX3CR1表达的研究

目的 观察CX3CR1在不同类型冠状动脉粥样硬化性心脏病(简称冠心病)患者外周血单核细胞中的表达.方法 选择经冠状动脉造影后确诊为冠心病的患者,其中54例稳定型心绞痛病例及61例急性冠脉综合征的病例作为研究对象;以冠状动脉造影正常的20例患者作为正常对照组,24例冠状动脉造影正常但有胸前区疼痛的病例作为阳性对照.利用流式细胞仪直接免疫荧光法检测不同类型患者外周血单核细胞上CX3CR1的表达;同时采用Gensini评分系统对冠心病患者冠状动脉病变程度进行定量评分,并分析CX3CR1与Gensini积分间的关系.结果 冠心病患者CX3CR1表达水平高于正常对照组[正常对照组为(0.46±0.27)%、稳定性心绞痛组为(12.59±6.05)、急性冠脉综合征组为(38.77±13.22),P<0.01],急性冠脉综合征患者CX3CR1表达明显高于稳定型心绞痛患者,差异有统计学意义(P<0.01);且冠心病患者CX3CR1表达水平与Gemini积分呈显著正相关(r=0.913,P<0.01).结论 冠心病患者CX3CR1表达水平明显升高,并且其增加程度与冠脉的狭窄程度有相关性.     

急性冠脉综合征患者血小板表面CD40L及血清sCD40L变化研究

目的 探讨血小板表面CD40L和血清可溶性CD40L(sCD40L)与急性冠脉综合征(ACS)的关系.方法 选取ACS患者52例(心肌梗死14例、不稳定心绞痛18例),稳定性心绞痛患者13例,同时选取10例健康成人作对照.分别应用流式细胞术和ELISA法测定血小板表面CD40L及血清sCD40L水平.随访ACS患者1月,测定其血清sCD40L水平.结果 FCM测定结果显示,AMI组和UA组血小板表面CD40L表达水平明显高于SA组及对照组(P<0.05),UA组CD40L水平显著高于AMI组(P<0.05),SA组与对照组比较无显著差别;ELISA测定血清SCD40L结果显示,AMI组和UA组血清sCD40L表达水平明显高于SA组及对照组(P<0.05).AMI组sCD40L水平显著高于UA组(P<0.05),SA与对照组比较无显著差别.结论 急性冠脉综合征患者血小板表面CD40L表达增加,血清sCD40L水平升高,因此CD40L可能成为预测斑块稳定状态的一个指标.     

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.