血清高敏C反应蛋白、颈动脉粥样硬化病变与急性冠脉综合征的关系

目的:研究血清高敏C反应蛋白(hs-CRP)水平,颈动脉粥样硬化病变表现与冠状动脉粥样硬化斑块稳定性及其病变程度之间的相互关系。方法:以急性冠脉综合征(45例,其中急性心肌梗死23例,不稳定性心绞痛22例)、稳定性心绞痛(22例)并接受冠状动脉造影检查的患者为研究对象,同时以健康者(18例)为对照,测定其hs-CRP水平。观察患者的双侧颈动脉超声,检测颈动脉内中膜厚度(IMT)、斑块形成情况,将冠状动脉病变分为1支病变、2支病变、3支病变,分析血清hs-CRP水平与不稳定性斑块的关系,颈动脉粥样硬化病变与冠状动脉粥样硬化病变程度之间的关系。结果:急性冠脉综合征患者的血清hs-CRP水平明显高于稳定冠心病者,差异有统计学意义(P<0.05);颈动脉IMT、斑块形成检出率与冠状动脉病变程度(冠状动脉病变支数)之间呈明显相关性(P<0.05)。结论:急性冠脉综合征患者血清hs-CRP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;颈动脉IMT、斑块形成可用于预测冠状动脉粥样硬化病变的严重程度。     

冠心病患者血清生长分化因子15C反应蛋白水平与冠状动脉病变程度的相关性分析

目的探讨不同类型冠心病患者的血清生长分化因子15(GDF-15)、C反应蛋白(CRP)的水平变化,与粥样硬化斑块稳定性和冠状动脉病变程度的关系。方法选择行冠状动脉造影检查的冠心病患者92例作为研究对象,根据冠状动脉造影结果及临床病史,分为22例稳定型心绞痛组(A组),25例不稳定型冠心病组(B组),25例心肌梗塞组(C组)及20例正常对比组(D组),每组均测量并比较血清中GDF-15、CRP水平,并且采用Gensini积分评定冠状动脉血管病变狭窄程度与GDF-15、CRP的相关性。结果 A组、B组、C组血清GDF-15水平均明显高于D组(P<0.05),B组血清GDF-15、CRP水平均明显高于A组、D组(P<0.05),C组血清GDF-15、CRP水平均明显高于A、B、D组(P<0.05);血清GDF-15、CRP水平和冠状动脉病变Gensini积分均有正相关性(P<0.05)。结论 GDF-15和CRP水平与冠状动脉粥样硬化斑块的不稳定性及冠状动脉病变程度有关,斑块越不稳定,病变越重、GDF-15和CRP水平越高,对判断冠心病患者的病情程度、发展和预后有重要作用。     

高敏C反应蛋白、脂蛋白a与冠状动脉病变程度的相关性分析

目的:探讨高敏c反应蛋白(hs-CRP)、脂蛋白a (LP(a))与冠状动脉病变程度的相关性,为临床诊断提供实验室依据.方法:对2010年1月～2011年1月拟诊或确诊为冠心病患者168例患者,行选择性冠状动脉造影后,根据造影结果是否有冠状动脉狭窄≥50%分为冠状动脉病变组和粥样硬化组.对冠状动脉病变组进一步根据冠状动脉病变的支数分为1～4支病变组.并且比较分析各组患者hs-CRP,LP(a)水平.结果:92例粥样硬化组和76例冠状动脉病变组的临床资料发现:hs-CRP(T=16.56,P<0.01),LP(a)(T=21.24,P<0.01),冠状动脉病变组发生率明显高于粥样硬化组,有显著的统计学差异(P<0.01).进一步研究发现:血清hs-CRP水平2支病变组显著高于对照组(P<0.05),3支、4支病变组显著高于1支病变组及对照组(P<0.05),血清LP(a)水平3支4支病变组显著高于1支病变组及对照组(P<0.05).结论:联合检查血清hs-CRP、LP(a)水平对评价冠心病高危人群及患者冠脉病变程度有重要的临床价值.     

血清胱抑素C水平与冠状动脉粥样硬化病变严重程度的相关性研究

目的探讨血清胱抑素C(Cystatin C)水平与冠状动脉粥样硬化病变程度的相关性。方法入选冠状动脉造影患者528例,依照冠状动脉造影结果分为正常组、单支病变组、双支病变组、三支病变组,应用Gensini积分系统进行评分。比较4组患者血清Cystatin C水平与Gensini积分的关系。结果血清Cystatin C水平在各组之间存在差异(P<0.05),且与冠状动脉粥样硬化病变严重程度呈正相关(r=0.46,P<0.05)。结论血清胱抑素C含量升高可作为冠状动脉粥样硬化病变的标志,血清胱抑素C含量的高低与冠状动脉狭窄的严重程度有关,为临床无创性评价冠状动脉病变严重程度提供一种新方法。     

辛伐他汀对冠心病患者颈动脉粥样硬化的影响

目的探讨辛伐他汀40 mg/d对冠心病患者颈动脉粥样硬化的影响,并探讨其影响机制。方法将90例经冠状动脉造影和颈动脉超声诊断的冠心病颈动脉粥样硬化患者随机分为辛伐他汀40 mg组(n=45)及辛伐他汀20 mg组(n=45),于给药前和给药3、9个月后采用高频超声检测颈动脉,记录颈动脉内膜中层厚度(IMT)和粥样硬化斑块积分,并测定血清超敏C反应蛋白(hs-CRP)和血脂水平。结果①辛伐他汀20 mg或40 mg治疗3、9个月后,hs-CRP、TC、TG、LDL-C均较治疗前有显著降低(P<0.05或P<0.01),HDL-C明显升高(P<0.05),且40 mg组较20 mg组作用更为明显(P<0.05);②治疗3、9个月后辛伐他汀40 mg组的颈动脉IMT和粥样硬化斑块积分均较治疗前明显下降(P<0.05),而辛伐他汀20 mg组IMT和粥样硬化斑块积分均无显著改变(P>0.05)。结论辛伐他汀40 mg/d对冠心病患者的颈动脉粥样硬化斑块具有延缓和稳定作用。     

辛伐他汀对冠心病患者颈动脉粥样硬化的影响

目的 探讨辛伐他汀40 mg/d对冠心病患者颈动脉粥样硬化的影响,并探讨其影响机制.方法 将90例经冠状动脉造影和颈动脉超声诊断的冠心病颈动脉粥样硬化患者随机分为辛伐他汀40 mg组(n=45)及辛伐他汀20 mg组(n=45),于给药前和给药3、9个月后采用高频超声检测颈动脉,记录颈动脉内膜中层厚度(IMT)和粥样硬化斑块积分,并测定血清超敏C反应蛋白(hs-CRP)和血脂水平.结果 ①辛伐他汀20 mg或40 mg治疗3、9个月后,hs-CRP、TC、TG、LDL-C均较治疗前有显著降低(P<0.05或P<0.01),HDL-C明显升高(P<0.05),且40 mg组较20 mg组作用更为明显(P<0.05);②治疗3、9个月后辛伐他汀40 mg组的颈动脉IMT和粥样硬化斑块积分均较治疗前明显下降(P<0.05),而辛伐他汀20 mg组IMT和粥样硬化斑块积分均无显著改变(P>0.05).结论 辛伐他汀40 mg/d对冠心病患者的颈动脉粥样硬化斑块具有延缓和稳定作用.     

冠心病与超敏CRP水平的关系

为探讨超敏C反应蛋白(hs-CRP)与冠心病严重程度的关系,选择24例急性心肌梗死患者,26例心绞痛患者,20例非冠心病患者,分别测定hs-CRP水平,所有患者均行冠脉造影,比较各组间hs-CRP水平差异。结果,急性心肌梗死组、心绞痛组hs-CRP水平高于正常对照组(P<0.05),急性心肌梗死组hs-CRP水平高于心绞痛组(P<0.01)。表明血清hs-CRP水平作为识别冠心病高危患者、监测病情的指标,其升高程度与冠状动脉粥样硬化程度有明显相关性。     

载脂蛋白对无症状非糖尿病人群冠状动脉粥样硬化的预测价值

目的分析无症状非糖尿病人群载脂蛋白(Apo)水平及Apo B/Apo A1比值,研究其与冠状动脉粥样硬化发生的相关性及对冠状动脉病变的预测价值。方法回顾性分析2013年4月至2014年3月在中国人民解放军总医院行冠状动脉CT血管成像和血生化检查的无症状体检者401例,根据检查结果分为粥样硬化组(n=224)和对照组(n=177),比较两组相关危险因素、脂质及Apo水平,找出预测冠状动脉粥样硬化的最佳血脂指标。结果粥样硬化组Apo B、Apo C2、Apo C3、Apo E水平及Apo B/Apo A1比值均显著高于对照组(P均<0.01),Apo A1、Apo A2及脂蛋白a水平两组间差异无统计学意义(P均>0.05)。Logistic回归分析结果显示,年龄、男性、高血压病史、Apo C3(OR=1.572,95%CI1.200~2.061)及Apo B/Apo A1(OR=1.767,95%CI 1.335~2.338)是本研究人群冠状动脉粥样硬化的独立危险因素(P均<0.01)。预测冠状动脉病变的受试者工作特征曲线分析结果显示,Apo B的曲线下面积最大,最佳截断点为1.005 g/L。结论 Apo C3与亚临床期冠状动脉粥样硬化关系密切,这一时期Apo A1降低并不明显,Apo B较其他脂类指标对无症状非糖尿病人群冠状动脉病变有很强的预测价值。     

同型半胱氨酸和超敏C反应蛋白与冠心病的相关性分析

目的探讨同型半胱氨酸（Hcy）和超敏C-反应蛋白（hs-CRP）的血清水平在监测冠心病病情方面的作用及与冠状动脉病变程度的关系。方法冠心病患者118例,按临床诊断分为急性心肌梗塞（AMI）组40例、不稳定性心绞痛（UAP）组36例、稳定性心绞痛（SAP）组42例,对照组40例。测定hs-CRP、同型半胱氨酸（Hcy）的水平,比较各组间的差异。结果 AMI组、UAP组及SAP组的Hcy和hs-CRP水平均比对照组高,差异有显著性（P〈0.05）;AMI组、UAP组和SAP组Hcy和hs-CRP水平相比,差异有显著性（P〈0.05）;Hcy和hs-CRP水平变化呈正相关。结论血清Hcy和hs-CRP可能是冠状动脉粥样硬化的标志,参与了冠心病的发病过程,其数值与冠状动脉病变程度密切相关。     

超敏C反应蛋白对走过性心绞痛患者冠状动脉病变程度的相关性研究

目的探讨超敏C反应蛋白(hs-CRP)对走过性心绞痛患者冠状动脉病变程度的预测价值。方法选取我科住院治疗的走过性心绞患者95例为走过性心绞痛组,80例健康体检者为对照组。测定其血清hs-CRP水平,分析冠状动脉病变程度与血清hs-CRP水平的关系。结果冠状动脉双支及三支血管病变的hs-CRP水平较单支血管病变高,分别为(10.23±3.34)mg/L、(15.18±4.25)mg/L和(7.45±2.76)mg/L,差异有统计学意义(P<0.05)。B型病变和C型病变组hs-CRP水平高于A型病变组,分别为(12.41±6.53)mg/L、(17.56±9.67)mg/L和(6.37±2.45)mg/L,差异有统计学意义(P<0.05)。结论走过性心绞痛患者hs-CRP水平与冠状动脉病变程度有关。     

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.