冠心病,原发性高血压患者血浆内皮素的研究

用放免法测定了１４例冠心病患者（ＣＨＤ）组和２０例原发性高血压患者（ＥＨ组）血浆内皮素（Ｅｎｄｏｔｈｅｌｉｎ ＥＴ）浓度变化，并与１８例健康人（对照组）进行比较。结果表明，ＣＨＤ、ＥＨ组血浆ＥＴ较对照组明显增高（Ｐ〈０．０５，Ｐ〈０．０１）；将ＥＨ组进行分期，与对照组比较，ＥＨ－Ⅰ期无明显增高（Ｐ〉０．０５），ＥＨ－Ⅱ及ＥＹ－Ⅲ期均较对照组明显增高（Ｐ〈０．００１），提示ＥＴ在冠心病及原发性高血压     

冠心病服药前后血浆内皮素和心房肽的变化

用放免法测定了４０例住院冠心病患者和２５例正常人的肘静脉血浆内皮素和心房肽浓度，结果显示冠心病患者的血浆ＥＴ，ＡＮＰ明显高于正常人（Ｐ〈０．００１）。ＥＴ与ＡＮＰ之间呈直线相关关系，ｒ＝０．３３０５（Ｐ〈０．０２５）。有心绞痛组血浆ＥＴ明显高于无心绞痛组（Ｐ〈０．０１），有心衰组ＥＴ显著高于无心衰组（Ｐ〈０．０５）。有高血压组ＥＴ高于无高血压组（Ｐ〈０．００５），而组间的ＡＮＰ水平差异不显著，冠心     

内皮素在原发性高血压发病中意义的探讨

用放射免疫分析法测定了５６例原发性高血压患者血浆内皮素（ＥＴ）水平，并同时测定了血管紧张素Ⅱ（ＡⅡ）和心钠素（ＡＮＦ）的血浆水平，以探讨ＥＴ、ＡⅡ和ＡＮＦ在原发性高血压发病中的作用。结果，原发性高血压患者血浆ＥＴ、ＡⅡ及ＡＮＦ水平比对照组明显升高。而且，随着高血压病病情的发展，ＥＴ水平逐渐升高；ＥＴ水平的增高与ＡⅡ和ＡＮＦ水平增高呈正相关。用转换酶抑制剂依那普利治疗，三者水平均明显下降。推断高血压     

内皮素及细胞因子在冠心病发病中的意义

检测３５例冠心病患者及２０例健康才血浆内皮素（ＥＴ）、血清肿瘤坏死因子（ＴＮＦ）及白细胞介素－６（ＩＬ－６）的水平。结果显示：与正常组比较，冠心病组ＥＴ及ＴＮＦ水平均增高，尤以心肌梗死明显；冠状动脉狭窄组与对照组比较，ＩＬ－６水平无明显变化，但心肌梗死组ＩＬ－６水平则明显增高，提示血浆ＥＴ浓度及细胞因子的作用与冠心病的发生发展有关，而ＩＬ－６水平与急性心梗的免疫损伤有关。     

肺心病心衰期血浆内皮素心钠素内源性洋地黄类物质物质浓度变化临床 …

目的：观察肺心病心衰期血浆内皮素（ＥＴ１）、心钠素（ＡＮＰ）、内源性洋地黄类物质（ＥＤＬＳ）浓度变化，探讨ＥＴ１是否参与肺心病心衰病理过程，ＥＴ１血将浓度变化与ＡＮＰ、ＥＤＬＳ之间的相关性。ＥＴ１、ＡＮＰ、ＥＤＬＳ血浆浓度是否可作为估价肺心病心功能状态参考指标。方法：用放射免疫法测定３０例肺心病患者心衰期血浆ＥＴ１、ＡＮＰ、ＥＤＬＳ浓度，并测定２０例同龄无心脏病患者血浆浓度作对照组。结果：肺心病心     

高血压病患者血浆内皮素变化及其意义

目的 探讨各期高血压病血浆内皮素（ＥＴ）浓度的变化及其意义。方法 ３８例高血压病患者分为Ａ组１５例,即Ⅰ期高血压病组;Ｂ组２３例,即Ⅱ和Ⅲ期的高血压病患者。患者按舒张压水平分为轻度高血压２０例、中度高血压１３例,得度高血压５例。另设健康正常对照组１０名。测定ＥＴ水平及血压。结果 显示患者ＥＴ水平随着血压的升高而升高。结论 ＥＴ参与高血压病的发生发展。     

内皮素及细胞因子在冠心病发病中的意义

检测３５例冠心病患者及２０例健康者血浆内皮素（ＥＴ）、血清肿瘤坏死因子（ＴＮＦ）及白细胞介素－６（ＩＬ－６）的水平。结果显示：与正常组比较，冠心病组ＥＴ及ＴＮＦ水平均增高（Ｐ＜０．０１），尤以心肌梗死组为明显（Ｐ＜０．０１）；冠状动脉狭窄组与对照组比较，ＩＬ－６水平无明显变化（Ｐ＞０．０５），但心肌梗死组ＩＬ－６水平则明显增高（Ｐ＜０．０１）。提示血浆ＥＴ浓度及细胞因子的作用与冠心病的发生发展有关；而ＩＬ－６水平与急性心梗的免疫损伤有关     

高血压患者血浆降钙素相关肽水平及与内皮素,心钠素之间相关？…

目的：观察高血压患者血浆降钙素基因相关肽（ＣＧＲＰ）水平及与心钠素（ＡＮＰ）、内皮素（ＥＴ）、胰岛素（ＩＮＳ）之间相关性。方法：２放射免疫法对６５例原发性高血压和５６例正常对照组者血浆ＣＧＲＰ、ＡＮＰ、ＥＴ、ＩＮＳ水平进行测定分析。结果：高血压组ＣＧＲＰ水平降低。男性高血压降低更为明显。ＡＮＰ水平高于对照组。ＥＴ水平两组无显著性差异。ＣＧＲＰ与ＥＴ之间于正相关，ＣＧＲＰ与ＡＮＰ、ＩＮＦ之间无明显相     

血浆内皮素和一氧化氮与肾性高血压及肾机能的关系

采用放射免疫及生化方法测定６０ 例肾脏病患者血浆 Ｅ Ｔ 和 Ｎ Ｏ 浓度,并进行相关分析。结果示：①肾脏病组血浆 Ｅ Ｔ１ 浓度高于正常对照组（ Ｐ ＜ ０ ．０１） ;血浆 Ｎ Ｏ 浓度低于正常对照组（ Ｐ ＜ ０ ．０１） 。②高血压组患者血浆 Ｅ Ｔ 高于非高血压组（ Ｐ ＜ ０ ．０１） ,血浆 Ｎ Ｏ 低于非高血压组（ Ｐ ＜ ０ ．０１） 。③肾机能不全组血浆 Ｅ Ｔ 高于肾机能正常组（ Ｐ ＜ ０ ．０１） ,血浆 Ｎ Ｏ 低于肾机能正常组（ Ｐ ＜ ０ ．０５） 。④ Ｅ Ｔ 分别与血压、 Ｂ Ｕ Ｎ 及 Ｓｃｒ 呈正相关, Ｎ Ｏ 分别与血压、 Ｂ Ｕ Ｎ 及 Ｓｃｒ 呈负相关。提示血浆 Ｅ Ｔ 及 Ｎ Ｏ 可能参与肾性高血压的病理生理过程。     

小儿肺炎并心衰及扩血管药治疗与内皮素的关系

为了解肺炎并发心衰患儿与血浆内皮素ＥＴ之间的关系，以及应用扩血管、强心药物治疗后对其的影响，我们对６５例肺炎患儿进行了治疗前后血浆ＥＴ测定。结果表明：治疗前肺炎患儿因浆ＥＴ均增高，以重症肺及并发心衰老增高尤为显著；轻型肺炎组与对照组血浆ＥＴ增高无显著性差异。治疗后各组ＥＴ值均下降，重症肺炎组ＥＴ浓度虽下降显著，但仍维持高水平，且与其他各组比较有显著性差异。提示单纯应用扩血管药物不能完全降低血浆ＥＴ     

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.