NT-proBNP、HCY及UA与冠心病的相关性研究

目的:研究不同类型冠心病(CHD)患者血浆氨基末端脑钠肽前体(NT-proBNP)、同型半胱氨酸(HCY)及血清尿酸(UA)水平差异,探讨NT-proBNP、HCY、UA水平与冠心病严重程度相关性.方法:选取临床上诊断为CHD的150例患者,其中急性ST段抬高型心肌梗死(STEMI)组50例、急性非ST段抬高型心肌梗死(NSTEMI)组50例、心绞痛(AP)组(包括不稳定型心绞痛及稳定型心绞痛)50例,同时选取冠脉造影正常者50例设为对照组.测定血浆NT-proBNP、HCY及UA水平,彩色超声心动图检测左心室射血分数(LVEF)值,并计算冠心病患者血浆NT-proBNP、HCY及UA水平、LVEF值与冠状动脉病变血管支数的相关性.结果:冠心病患者血浆NT-proBNP、HCY及UA水平均显著高于对照组(P＜0.05),急性心肌梗死(AMI)组NT-proBNP水平显著高于AP组(P＜0.05).HCY、UA水平在对照组、AP组、NSTEMI组、STEMI组中呈递增趋势,且差异均有统计学意义(P＜0.01).AMI组LVEF值显著低于AP组及对照组(P＜0.05).多支病变较单支病变组NT-proBNP、HCY、UA水平及LVEF值差异有统计学意义(P＜0.05).冠心病患者的血NT-proBNP、HCY、UA水平与病变血管支数呈正相关(rNT-proBNP=0.753,rHCY=0.792,rSUA=0.633,P＜0.01),LVEF与病变血管支数呈负相关关系(r= -0.436,P＜0.01).结论:NT-proBNP、HCY及UA可以作为反映冠状动脉病变严重程度的重要指标.     

冠心病患者血清同型半胱氨酸、C反应蛋白检测的临床意义

目的 探讨冠心病（CHD）患者血清同型半胱氨酸（HCY）和C反应蛋白（CLP）的水平变化及临床意义.方法 选择经冠状动脉造影检查确诊为CHD的门诊及住院患者105例作为观察对象,其中包括稳定型心绞痛（SAP组）31例、不稳定型心绞痛（UAP组）39例、急性心肌梗死（AMI组）35例;并选择同期体检的健康人40例作为对照组.检测所有观察对象的血清HCY、CRP水平,并对检测结果进行统计学分析.结果 CHD组患者血清HCY和CRP水平均显著高于对照组,差异有统计学意义（P＜0.05）;CHD患者各组之间血清HCY、CRP水平亦存在显著差异（P＜0.05）.结论 CHD患者血清HCY和CRP水平与冠状动脉病变程度相关,对CHD的临床诊断及疗效监测有重要价值.     

冠心病患者血浆同型半胱氨酸测定的临床意义

目的 探讨血浆中同型半胱氨酸(homocysteine,HCY)测定水平与冠心病(CHD)发病的关系.方法 采用循环酶法HCY试剂盒分别测定98例CHD患者(CHD组)及64例正常人(正常对照组)的血浆HCY水平,比较不同CHD类型患者及正常人血浆HCY水平,分析不同冠状动脉病变支数与血浆HCY水平的关系.结果 CHD组血浆HCY水平明显高于正常对照组(P＜0.05);比较不同类型CHD患者血浆HCY水平,急性心肌梗死组(AMI)＞不稳定型心绞痛组(UAP)＞稳定型心绞痛组(SAP)＞正常对照组.SAP,UAP组及AMI组与正常对照组比较,差异有显著性(P＜0.05).正常对照组及1、2、3支血管病变者血浆HCY浓度呈逐级增高趋势,正常对照组与其他各病变组问比较差异有显著性(P＜0.01),正常对照组与1支病变组之间差异无显著性(P＞0.05),1支与2支病变组间比较,差异有显著性(P＜0.05),1支与3支病变组阃比较,差异有显著性(P＜0.01).结论 CHD患者血浆HCY水平明显增高,血浆HCY浓度随着冠状动脉病变支数增加而增加,随着HCY浓度增高,冠心痛的危险性也增高.     

西宁地区冠心病患者血清C-反应蛋白、同型半胱氨酸及叶酸水平的检测分析

目的:探讨C-反应蛋白(CRP)、同型半胱氨酸(HCY)、叶酸(FA)联合检测在冠心病(CHD)诊断中的临床价值.方法:对临床确诊的80例心肌梗死患者、32例稳定型心绞痛患者、40例不稳定型心绞痛患者和100例正常健康体检者同时进行C-反应蛋白(CRP)、同型半胱氨酸(HCY)、叶酸(FA)及维生素B12(VitB12)水平的检测,并将检测结果与冠心病进行相关性分析.结果:心肌梗死(AMI)组、心绞痛组与正常对照组比较,血清CRP、HCY水平显著增高,差异有显著性(P<0.01).而FA水平则显著低于健康对照组,差异有显著性(P<0.01).结论:高CRP、HCY及FA、VitB12的缺乏是CHD的独立危险因素,CYP、 HCY、 FA 联合检测可提高诊断CHD的特异性和敏感性.     

血清同型半胱氨酸与冠心病的相关性研究

目的 探讨冠心病患者同型半胱氨酸的水平与冠状动脉病变程度的关系.方法 60例经冠状动脉造影确诊的冠心病患者,其中稳定性心绞病18例,不稳定性心绞痛22例,急性心肌梗死20例.另选20例健康者作为对照.采集研究对象外周静脉血检测同型半胱氨酸,冠状动脉病变按Censini评分标准.结果 冠心病组患者血浆同型半胱氨酸水平与健康组相比显著增高(P<0.01);稳定型心绞痛、不稳定型心绞痛及急性心肌硬死3组同型半胱氨酸比较,水平依次降低,两两比较差异具有统计学意义(P<0.01);冠心病患者同型半胱氨酸水平在冠状动脉单支病变、双支病变、三去病变组依次增高,两两比较差异具有统计学意义(P<0.05).同型半胱氨酸与冠状动脉病变程度呈正相关(r=0.509,P<0.01)结论血浆同型半胱氨酸水平与冠状动脉病变程度及病变支数有关,提示血浆同型半胱氨酸可作为冠心病病变程度的诊断依据.     

冠心病与血浆脂联素、高敏C-反应蛋白的关系

目的:探讨冠心病患者血浆脂联素、高敏C-反应蛋白的相关性。方法:选择冠心病患者82例,分为急性心肌梗死组22例,不稳定型心绞痛组30例,稳定型心绞痛组30例,正常对照组30例,测定血浆脂联素和高敏C-反应蛋白水平,进行对比分析。结果:冠心病组患者血浆脂联素水平明显降低,且稳定型心绞痛组、不稳定型心绞痛组、急性心肌梗死组3组血浆脂联素依次降低,各组间差异有统计学意义(P<0.01);冠心病组患者血浆高敏C-反应蛋白水平明显升高,且稳定型心绞痛组、不稳定型心绞痛组、急性心肌梗死组3组血浆高敏C-反应蛋白依次升高,各组间差异有统计学意义(P<0.01)。冠心病组患者血浆脂联素水平与高敏C-反应蛋白呈负相关(r=0.46,P<0.01)。结论:冠心病患者代表抗炎因素的血浆脂联素显著降低,代表炎症活跃的高敏C-反应蛋白显著升高,两者结合应用可以为早期抗炎治疗及对预后判断提供依据。     

C反应蛋白水平与冠心病的相关性研究

目的探讨C反应蛋白(CRP)水平与冠心病(CHD)之间的关系。方法测定70例正常对照人群和70例经冠状动脉造影(CAG)证实为CHD患者血浆CRP水平,在CHD组中单支病变22例、双支病变25例、三支病变23例;稳定型心绞痛32例、不稳定型心绞痛38例。结果CRP水平在对照组、稳定型心绞痛组、不稳定型心绞痛组依次增高,稳定型心绞痛组及不稳定型心绞痛组均明显高于对照组(P<0.05,P<0.01)。在冠心病组中,单支病变组、双支病变组以及三支病变组中CRP水平也依次增高,均明显高于对照组(P<0.05或P<0.01)。结论CRP水平与冠心病(CHD)和冠脉病变程度相关。     

高敏C反应蛋白与冠心病病变程度的相关性分析

目的 探讨高敏C反应蛋白(hs-CRP)与冠心病病变程度的相关性.方法 97例经冠状动脉造影确诊的冠心病患者被分为3组:稳定型心绞痛组31例、不稳定型心绞痛组47例和急性心肌梗死组19例,又根据血管病变程度分为单支血管病变组54例及多支血管病变组43例.同时以冠状动脉造影排除冠心病的22例患者作为对照组,比较各组间血浆hs-CRP浓度.结果 冠心病患者各组hs-CRP浓度均较正常对照组增高(P<0.05).在冠心病各亚组中,稳定型心绞痛组、不稳定型心绞痛组、急性心肌梗死组血浆hs-CRP浓度依次增高.多支血管病变组hs-CRP含量亦高于单支血管病变组(P<0.05).结论 血浆hs-CRP浓度与冠心病病变程度密切相关.     

同型半胱氨酸血症与冠心病患者冠脉病变稳定性及病变程度关系研究

目的探讨同型半胱氨酸血症(homocysteine,HCY)与冠心病患者冠状动脉病变稳定性及病变程度的关系.方法选择不稳定型心绞痛患者56例,稳定型心绞痛患者40例.20例冠状动脉造影正常者作为对照组.根据冠状动脉造影结果,分为单支、双支以及三支病变组,并根据冠状动脉狭窄程度及部位进行记分.采用酶联免疫吸附双抗夹心法测定血浆HCY水平.结果不稳定型心绞痛组HCY水平显著高于稳定型心绞痛组(P＜0.01),两组均明显高于对照组(P＜0.01).三支病变组HCY水平高于双支病变组,无显著性差异,显著高于单支病变组(P＜0.01);双支病变组高于单支病变组,无显著性差异;三组均显著高于正常对照组.HCY与冠状动脉狭窄积分正相关(r=0.517,P＜0.01).多元Logistic逐步回归分析表明HCY为不稳定型心绞痛及病变狭窄程度的独立危险因素.结论HCY与冠心病患者冠状动脉病变稳定性和狭窄程度独立相关,高HCY引起冠状动脉病变不稳定和病变程度加重.HCY可作为判定冠心病患者冠状动脉病变稳定性和狭窄程度的指标之一.     

血清C反应蛋白、高半胱氨酸与B型尿钠肽联合检测在冠心病中的临床意义

目的 通过对血清C反应蛋白(CRP)、高半胱氨酸(HCY)与B型尿钠肽(BNP)联合检测分析冠心病患者病情严重程度,探讨其临床意义.方法 回顾性分析我科室收治的188例冠心病患者及98例健康体检者的临床资料,比较两者CRP、HCY、BNP水平差异,并进行统计学分析.结果 ①稳定型心绞痛组CRP与正常对照组比较升高差异有显著性(P＜0.05),不稳定型心绞痛组、急性心肌梗死组CRP与正常对照组比较明显升高,差异有高度显著性(P＜0.01).②稳定型心绞痛、不稳定型心绞痛组、急性心肌梗死组三组HCY均明显升高(P＜0.01),且升高幅度依次明显递增.③稳定型心绞痛组BNP与正常对照组比较升高差异有显著性(P＜0.05),不稳定型心绞痛组、急性心肌梗死组BNP明显升高(P＜0.01),且升高幅度依次递增,尤以急性心肌梗死组升高极为显著.结论 血清CRP、HCY和BNP三者联合检测,可提高冠心病患者的诊断价值及病情程度,可作为冠心病测定的常用检测指标.     

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.     

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.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.