小儿病毒性心肌炎患者血浆心钠素的测定

用放射免疫分析方法对新疆地区６０例１．５～１２岁的健康儿童和３６例４个月～１４岁的病毒性心肌炎患儿血浆心钠素（ＡＮＦ）进行研究。结果，健康儿童的血浆ＡＮＦ值为０．６２７±０．１３０ｎｇ／ｍｌ。病毒性心肌炎（急性期）患儿血浆ＡＮＦ值为０．９２６±０．４６０ｎｇ／ｍｌ，未合并心律失常者其血浆ＡＮＦ值为０．７８４±０．０９０ｎｇ／ｍｌ；合并心律失常者中，３个组的ＡＮＦ值分别为０．８１８±０．３７５ｎｇ／ｍｌ、１．０８５±０．４１０ｎｇ／ｍｌ、０．９００±０．５６６ｎｇ／ｍｌ。测定结果表明：（１）对照组无年龄性别差异。（２）病毒性心肌炎（急性期）患者血浆ＡＮＦ值显著高于对照组（Ｐ＜０．０５）。其中未合并心律失常者其血浆ＡＮＦ值也高于对照组（Ｐ＜０．０５）；合并心律失常者中，除Ⅲ组外，Ⅰ组和Ⅱ组与对照组相比，均有显著差异（Ｐ均＜０．０１）。     

开博通、硝苯啶对原发性高血压患者血浆内皮素、肾素─血管紧张素─醛固酮系统的影响

本文对２４例原发性高血压（ＥＨ）患者随机分为应用升博通组及硝苯啶组，各１２例，均进行１４ｄ治疗，探讨这两种药物对血浆内皮素（ＦＴ）、肾素（ＰＲＡ）、皿管紧张素Ⅱ（ＡＴⅡ）及醛固酮（ＡＬＤ）系统、血压和心率的影响。结果表明：ＥＨ患者治疗前血浆ＦＴ、ＰＲＡ、ＡＴⅡ及ＡＬＤ浓度与正常对照组相比差异有显著性意义（Ｐ＜Ｏ．０１和Ｐ＜０．０５）．开博通组治疗后，血浆ＡＴⅡ、ＡＬＤ、血压及心率平均值与治疗前相比差异有显著性意义（Ｐ＜０．０１和Ｐ＜０．０５），ＦＴ和ＰＲＡ差异无显著意义（Ｐ＞０．０５）；硝苯啶组治疗后血浆ＥＴ、血压平均值与治疗前相比差异有极显著性意义（Ｐ＜０．０１）、ＡＴⅡ、ＡＬＤ虽有下降但差异无显著性意义（Ｐ＞０．０５），心率平均值增加（Ｐ＜０．０１）。以上两种药物从不同作用机制影响血管活性物质的皿浆浓度来降低血压，提示将此两种药物联合使用，呵更有效地发挥降压效果。     

鹿角方对充血性心力衰竭大鼠血浆心钠素的影响

目的：为了观察鹿角方对充血性心力衰竭（ＣＨＦ）大鼠血浆心钠素（ＡＮＦ）的影响。方法：采用实验性腹主动脉银夹狭窄大鼠模型,观察左室重量指数（ＬＶＭＩ）,放免测定血浆ＡＮＦ。结果：模型组血浆ＡＮＦ水平较假手术组明显升高（Ｐ＜０．０１）,鹿角方大剂量组和鹿角方小剂量组血浆ＡＮＦ水平较模型组显著下降（Ｐ＜０．０１,Ｐ＜０．０５）;模型组ＬＶＭＩ较假手术组显著升高（Ｐ＜０．０１）,鹿角方大剂量组和鹿角方小剂量组ＬＶＭＩ较模型组明显下降（Ｐ＜０．０１,Ｐ＜０．０５）。结论：鹿角方具有逆转ＣＨＦ大鼠左室肥厚及降低血浆ＡＮＦ水平的作用     

慢性肾功能衰竭血、尿内皮素、一氧化氮水平与肾功能、血压相关性

目的　探讨慢性肾衰血浆及尿内皮素（ＥＴ）、一氧化氮（ＮＯ）改变及其与肾功能、血压的关系。方法：采用放免法及比色法测定血浆及尿中ＥＴ－ １、ＮＯ含量及其与血清肌酐（ＳＣｒ）、平均动脉压（ＭＡＰ）的相关性。结果：慢性肾衰组血浆及尿ＥＴ显著高于健康人（Ｐ＜ ０．０１）,其中ＣＲⅠ期血、尿ＮＯ 与健康人无显著差异（Ｐ＞ ０．０５）而ＣＲＦ期尿ＮＯ 低于健康人（Ｐ＜ ０．０５）,血浆及尿ＥＴ 与ＳＣｒ及ＭＡＰ均显著正相关（Ｐ＜ ０．０５）、ＮＯ与ＳＣｒ及ＭＡＰ均呈显著负相关（Ｐ＜ ０．０１）。结论：慢性肾衰时体内ＥＴ增高、ＮＯ 合成减少,且与肾功能及血压密切相关,说明ＥＴ及ＮＯ 在慢性肾衰的进展中可能起重要作用。     

BN52021对血小板活化因子引起的银屑病患者中性白细胞聚集反…

采用聚集仪测定了血小板化因子（ＰＡＦ）拮抗剂ＢＮ５２０２１对ＰＡＦ引起银屑病患者嗜中性白细胞（ＰＭＮ）聚集反应的影响。结果表明，ＰＡＦ对ＰＭＮ有较强的聚集作用，并呈剂量依赖关系；银屑病患者ＰＭＮ对低浓度ＰＡＦ（＜１０＾－８ｍｏｌ／Ｌ）聚集反应明显高于正常人（Ｐ＜０．０５），而对高浓度ＰＡＦ（＞１０＾－７ｍｏｌ／Ｌ）聚集反应则与正常人差异无显著意义（Ｐ＞０．０５）。ＢＮ５２０２１能明显抑制ＰＡＦ对Ｐ     

果糖胺测定在隐性糖尿病中的诊断价值

目的：探讨果糖胺（Ｆｒｕｃｔｏｓａｍｉｎｅ,ＦＭＮ） 与隐性糖尿病的关系。方法：检测２０７ 例健康体检者,１１９ 例非胰岛素依赖性糖尿病（ＮＩＤＤＭ） ,３５ 例隐性糖尿病人的空腹血糖（ＦＢＧ） 和ＦＭＮ。结果：糖尿病组空腹血糖（ＦＢＧ） 及ＦＭＮ明显高于正常对照组（ Ｐ＜ ０．０１） ,而隐性糖尿病组ＦＢＧ与正常对照组相比差异无显著（ Ｐ＞ ０．０５） ,ＦＭＮ明显高于正常对照组（ Ｐ＜ ０．０１） 。隐性糖尿病患者糖耐量试验阳性,餐后２ 小时血糖增高,ＦＭＮ与空腹时无差异（ Ｐ＞ ０．０５） 。结论：ＦＭＮ是诊断隐性糖尿病的一项可靠指标。     

BN_（52021）对血小板活化因子引起的银屑病患者中性白细胞聚集反应的影响

采用聚集仪测定了血小板活化因子（ＰＡＦ）拮抗剂ＢＮ５２０２１对ＰＡＦ引起银屑病患者嗜中性白细胞（ＰＭＮ）聚集反应的影响。结果表明，ＰＡＦ对ＰＭＮ有较强的聚集作用，并呈剂量依赖关系；银屑病患者ＰＭＮ对低浓度ＰＡＦｆ＜１０（－８）ｍｏｌ／Ｌ）聚集反应明显高于正常人（ｐ＜０．０５），而对高浓度ＰＡＦ（＞１０（－７）ｍｏｌ／Ｌ）聚集反应则与正常人差异无显著意义（Ｐ＞０．０５）。ＢＮ５２０２１能明显抑制ＰＡＦ对ＰＭＮ的聚集作用，呈时间和剂量效应关系，对患者及正常人ＩＣ５０分别为１３×１０（－６）ｍｏｌ／Ｌ及１２×１０（－６）ｍｏｌ／Ｌ。提示ＰＡＦ与ＰＭＮ在银屑病皮损炎症过程起重要病理生理作用，ＰＡＦ拮抗剂有可能成为银屑病治疗有效新途径。     

几种先天性心脏病患儿一氧化氮水平观察

目的 了解ＮＯ在先天性心脏病中的作用及临床意义。方法 用Ｇｅｒｉｓｓ硝酸盐还原法测定几种先天性心脏病患儿和正常对照组的ＮＯ水平。结果 与对照组相比,室间隔缺损（ＶＳＤ）患儿、房间隔缺损（ＡＳＤ）患儿、动脉导管未闭（ＰＤＡ）患儿ＮＯ水平增高且有显著差异（ｐ〈０．０５）;法洛氏四联症（Ｆ４）患儿ＮＯ水平降低但无显著差异（ｐ〉０．０５）。其中先天性心脏病伴肺动脉高压者ＮＯ水平高于对照组且有显著差异（ｐ〈     

血浆胃动素含量在胃肠恶性肿瘤治疗前后的动态观察

目的探讨胃动素在胃肠恶性肿瘤中的意义。方法用放射免疫法测定４７例胃肠恶性肿瘤患者（胃癌２５例，肠癌２２例）治疗前后血浆胃动素的含量。结果手术前血浆胃动素值显著高于对照组（Ｐ＜０．０１）；根治性手术后和对照组相比无显著性差异（Ｐ＞０．０５）；根治性手术前后胃动素值有显著性差异（Ｐ＜０．０１）。术后复发及转移者，化疗前胃动素值高于对照组（Ｐ＜０．０５），化疗后有所下降，但化疗前后胃动素值差异不明显（Ｐ＞０．０５）。结论胃动素可能成为胃肠恶性肿瘤治疗的疗效判定及随访的一个指标。     

慢性肾衰患者血液透析前后血浆皮质醇水平变化及其临床意义

本文测定了２１例慢性肾功能衰竭（ＣＲＦ）患者血液透析（ＨＤ）前后及透析器动静脉端血浆皮质醇（Ｆ）。发现ＨＤ前血浆Ｆ非常显著地高于正常对照组（ｔ＝３．７０９，Ｐ＜０．００１）；透析器静脉端血浆Ｆ低于动脉端，但缺乏统计学意义（ｔ＝１．５８２，Ｐ＞０．０５）；ＨＤ４小时后的结果高于ＨＤ前，两者比较无显著性差异（ｔ＝０．５９１，Ｐ＞０．０５）。提示ＨＤ对血浆Ｆ无清除作用。     

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.