急性心肌梗死病人血清肌钙蛋白I的检测及意义

①目的探讨血清心肌肌钙蛋白Ⅰ(cTnI)在心肌梗死病人发病后不同时间的诊断价值.②方法采用OpusTM全自动急诊干式免疫分析仪定量法,检测了80例AMI病人的动态血清cTnI及肌酸激酶同工酶(CK-MB)活性.③结果80例AMI病人cTnI总阳性率为97.50%,阳性率在发病后4 h内达45.O0%,7 d时仍高达33.75%.AMI病人发病24 h后心肌cTnI较CK-MB的阳性率明显增高(χ2=9.014～47.619,P＜0.01).④结论AMI病人心肌cTnI检测阳性出现时间早、持续时间长,是一种高度灵敏、特异的心肌损伤的血清标志物.     

血清CK-MB、Mb、cTnI检测急性心肌梗塞的临床应用

目的 :了解急性心肌梗塞 (AMI)时 ,血清肌酸激酶同工酶 (CK MB)、肌红蛋白 (Mb)、心肌肌钙蛋白I(cT nI)的变化。方法 :用Access微粒子化学发光全自动免疫分析仪器 .由BACKMAN公司提供的配套试剂 ,以检测血清CK MB ,Mb、cTnI的浓度。结果 :AMI患者血清CK MB、Mb、cTnI均数均高于健康对照组 ,其敏感性CK MB 32 .8%、Mb4 1 .8%、cTnI 1 0 0 %。结论 :血清CK MB、Mb、cTnI的连续检测对急性心肌梗塞的诊断、治疗和愈后具有指导价值。     

血清肌钙蛋白测定在心梗病人中的应用

目的：探讨血清肌钙蛋白测定在心梗病人中的应用。方法：选择该院2014年1月至2016年1月收治的80例明确诊断为急性心肌梗死（AMI）患者作为研究对象,使用磁微粒子化学发光技术分别对患者发病当时、发病后4 h、发病后7 d 的两组血清肌钙蛋白（cTnI）、肌酸激酶同工酶（CK －MB）进行测定,比较两个标志物的阳性率。结果：cTnI 在 AMI 患者发病当时、发病后4 h、发病后7 d 的阳性率均高于 CK －MB,两项指标阳性率比较统计学差异显著（P ＜0.05）。结论：cTnI 在 AMI 患者诊断中阳性率敏感性高、持续时间久,是临床诊断 AMI 的重要血清标志物。     

快速全血心肌肌钙蛋白I检测床边诊断急性心肌梗死

目的：探讨全血心肌肌钙蛋白I(cTni)定性检测诊断急性心肌梗死(AMI)应用价值。方法：对80例AMI行cTd检测，同时测定血清CK、CK—MB并与心力衰竭组、非心脏痛组比较。结果：AMI组发病后平均4．3小时cTnI阳性率95％，之后～第7天各时点阳性率均100％。该组CK和CK—MD峰值平均为1508．45U／L和6l87．73U／L，超过正常上限2倍。心力衰竭组和非心脏病组各时点cTnI均阴性，CK、CK—MB峰值在正常范围。结论：全血cTnI定性检测可在病床边检出AMI，15min内获结果，是一种快速、灵敏、准确的AMI诊断手段。     

肌钙蛋白I、肌红蛋白和肌酸激酶同工酶在急性心肌梗死诊断意义的比较

目的 :了解肌钙蛋白I(cTnI)、肌红蛋白 (Mb)和肌酸激酶同工酶 (CK MB)在急性心肌梗死 (AMI)中的变化规律 ,比较它们在AMI诊断中的应用意义。方法 :系列测定AMI患者血中的cTnI、Mb、CK MB ,对其结果进行比较分析。结果 :19例AMI患者Mb最早在血中出现。Mb峰值亦首先出现 ,达峰的时间为 ( 11.1± 5 .0 )h ,持续时间为 ( 17.6± 4.8)h ;CK MB达峰值的时间为 ( 19.9± 9.8)h ,持续时间为 ( 5 0 .4± 15 .4)h ;cTnI峰值时间为 ( 2 3.8± 10 .6 )h ,持续时间最长 ,为 ( 16 6 .4± 6 2 .1)h。结论 :AMI发病早期同时检测cTnI和Mb ,有助于早期确诊AMI。对延迟入院CK MB已经降至正常的患者检测cTnI,仍有助于AMI的诊断。     

肌钙蛋白Ⅰ与心肌酶对急性心肌梗死早期诊断及溶栓再通指标的对比研究

目的:旨在观察急性心肌梗死(AMI)患者血清中心肌肌钙蛋白Ⅰ(cTnI)释放动力学,浓度曲线,峰值特点及与血清肌酸激酶(CK)及肌酸激酶同工酶(CK-MB)动态变化的比较,以确定cTnI早期诊断AMI及判断溶栓后再通的价值.方法:对102例AMI患者进行溶栓治疗前后血清cTnI的动态检测分析.并与CK、CK-MB做比较.结果:cTnI升高时间比CK、CK-MB早2h,AMI在起病后6 h内,cTnI、CK、CK-MB检测的阳性率分别为100%、66%和64%,起病后6h内cTnI检测的阳性率显著高于CK、CK-MB(P<0.05):cTnI增高持续时间长达7天以上,显著长于CK、CK-MB(P<0.01):cTnI峰值溶栓再通组明显提前为10～14h,比CK、CK-MB早2h左右,而溶栓失败组明显延长到26～29h,与CK、CK-MB组无区别.结论:cTnI是反映心肌细胞损伤敏感性高、特异性强的生化指标,动态观察cTnI的变化,对AMI早期或晚期的诊断及溶栓治疗后血管再通的判断有重要的临床价值.     

联合快速检测心肌损伤标记物在急性心肌梗死早期诊断中的应用分析

目的　评价联合快速检测心肌损伤标记物在急性心肌梗死 (AMI)中的早期诊断价值。方法　采用美国PMB公司的综合诊断试剂盒快速测定 4 7例AMI患者在不同时期的CK MB、Mb、TnI,同时用生化法测定CRP和CK MB ,进行统计学比较。结果　 4种标记物早期 (≤ 6h)诊断灵敏性以血清Mb最高 ,CK MB最低。在AMI发病 3～ 7天 ,TnI阳性率非常显著高于其它 3种 (P <0 0 0 5 )。早期快速测试法测定CK MB的阳性率显著高于酶法 (P <0 0 5 ) ,而早期CRP阳性率与酶法CK MB相比亦有非常显著的差异 (P <0 0 1 )。结论　联合快速检测心肌损伤标记物在AMI早期诊断中具有重要临床价值     

肌红蛋白、心肌肌钙蛋白I、肌酸激酶同工酶联合检测诊断急性心肌梗死

目的探讨肌红蛋白（Mb）、心肌肌钙蛋白I（cTnI）、肌酸激酶同工酶（CK－MB）联合检测诊断急性心肌梗死（AMI）的临床价值。方法检测82例AMI患者和80例健康对照者血清cTnI、Mb、CK—MB水平,并动态分析其在AMI患者血清中的变化。结果AMI组cTnI、Mb、CK—MB水平明显高于对照组。cTnI于AMI发病后0—2小时升高,24小时达到高峰,72小时仍维持较高水平,7天后达到基线水平;Mb于0—2小时水平明显升高,12小时到达高峰,24小时出现明显下降,48小时到达基线水平;CK—MB于0～2小时水平开始升高,24小时达到峰值,48小时水平明显下降,72小时达到基线水平。结论cTnI、Mb、CK—MB心肌标志物在AMI检测中各具有其不同的临床价值,三种标志物联合检测对于AMI的诊断有重要临床价值。     

肌钙蛋白I在急性心肌梗死和不稳定性心绞痛诊断中的意义

目的 :研究心肌肌钙蛋白I(cTnI)在诊断急性心肌梗死 (AMI)中的意义和在预测不稳定性心绞痛 (UA)发生心脏事件中的价值。方法 :对AMI患者血清中cTnI和肌酸激酶同工酶 (CK -MB)进行了动态观察 ,并对UA患者进行随访 ,观察其血清cTnI浓度与其 1～ 2月内发生心脏事件的关系 ,评价其对不稳定性心绞痛的预后价值。结果 :在AMI胸痛后 4小时内 ,6 0例病人cTnI阳性为 5 2例 ,检出率为 86 6 7% ,与CK -MB有明显的差异 (P <0 0 1) ;4 0例UA病人cTnI阳性为 18例 ,检出率为 4 5 % ,与CK -MB有明显的差异 (P <0 0 5 ) ;在对AMI的动态观察中 ,cTnI在发病后 4小时即有很高的检出率 ( 86 6 7% ) ,12～ 2 4小时达到高峰 ,其阳性率为 10 0 % ,在 5天和 7天时仍有很高的检出率 (分别为 6 8 33%和4 0 % ) ;在对UA的随诊观察中 ,cTnI高于正常的UA患者 ,其预后要比cTnI正常的差 ,其心脏事件发生率具有明显的差异性 (P <0 0 5 )。结论 :cTnI能敏感地反映心肌损伤 ,并且特异性较好。在对早期急性和中晚期亚急性AMI的检测方面具有很高的价值 ,在对UA的预后评价方面也有重要的意义     

心肌损伤标志物在急性心肌梗死诊断中的应用价值

目的探讨心肌损伤标志物血清心肌肌钙蛋白I（cTnI），肌红蛋白（Myo），肌酸激酶同工酶（CK—MB）单项及联合检测在诊断急性心肌梗死（AMI）中的临床应用。方法分别采集107例患者发病后2,4、8h静脉血，采用化学发光法在1h内定量测定cTnI、Myo、CK—MB；同时检测30例正常对照。结果在发病后2h，只有Myo的含量升高，敏感性达到47．06％，特异性58．33％；发病后4h，Myo、cTnI和CK—MB的敏感性分别为88．23％、45．10％和52．94％，特异性分别为71．11％、81．48％、82．61％；发病后8h，Myo、cTnI、CK—MB的敏感性均为100％，特异性分别为88．24％、96．08％、90．19％，含量显著高于对照组（P〈0．01）。结论cTnI、Myo、CK—MB联合检测，可提高对诊断AMI的敏感性和特异性，连续采血检测更能提高诊断率和病情分析。     

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.