3，4’，5－三羟基芪－3－β－单－D－葡萄糖甙对损伤动脉内膜血小板沉积量的影响

在离体动脉损伤模型上，应用￣（１２５）Ｉ标记血小板，观察了３，４，５－三羟基芪－３－β－单－Ｄ－葡萄糖甙（ＰＤ）对模拟血管成形术后血小板沉积量的影响。结果表明，对照组血小板沉积量为９．４２±２．０１×１０￣６／ｃｍ￣２和４０２．３７±７２．８５×１０￣６／ｇ（标本干重，下同）；ＰＤ组血小板沉积量为：５．９３±１．９５×１０￣６／ｃｍ￣２和２５３．４９±７６．３８×１０￣６／ｇ，两组间差异有统计学意义（Ｐ＜０．０５）。     

西宁地区新生儿脐血血象等参数的测定及分析

本文报告西宁地区新生儿脐血血象等本数，共测定７０例，Ｈｂ１６７．７±１９．９ｇ／Ｌ、Ｒｂｃ４．７３±０．７×１０￣（１２）／Ｌ、Ｈｃｔ５６．０±９．０％、Ｒｅｔ２．６４±２．６％、ＭＣＶ１１８．３ｆｌ、的ＣＨ３５．９ｐｇ、ＭＣＨＣ３０．３％、Ｗｋ１０．３５±３．７９×１０￣９／Ｌ、ＢＰｃ１３９．０±４６．７×１０￣９／Ｌ，并与国内外报告的数值比较，进行分析和讨论。     

离体人冠状动脉球囊损伤后血小板沉积量的实验研究

建立了离体人冠状动脉球囊损伤模型，用１２５Ｉ标记血小板，观察损伤后的人冠状动脉内皮下血小板沉积量。结果显示：未损伤段冠状动脉内表面沉积血小板数为１．２２±０．３４×１０￣６／ｃｍ￣２和４９．３６±１５．８６×１０￣６／ｇ（标本干重，下同）；损伤段为１１．８８±２．６７×１０￣６／ｃｍ￣２和３５７．２８±７２．５３×１０￣６／ｇ，较前者显著增加（Ｐ＜０．０１，ｎ＝４）。     

人脐静脉内皮细胞的培养

目的：建立人内皮细胞的培养及其生物学功能检测方法。方法：以脐带来源的脐静脉内皮细胞行原代及传代培养，以光镜、电镜及第Ⅷ因子相关抗原的Ｓ－Ｐ免疫细胞方法进行观察及鉴别。结果：培养细胞具有特征性的Ｗｅｉｂｅｌ－Ｐａｌａｄｅ小体，其上清液及细胞内测到血管紧张素转换酶（ＡＣＥ）和ＶｏｎＷｉｌｌｂｒａｎｄ因子（ＶＷＦ）分别为８４±９Ｕ，７０±８Ｕ；（１．０８±０．２６）×１０（－２）Ｕ／ｍｌ，（１．０１±０．１４）×１０（－２）Ｕ／ｍｌ。结论：形态学及免疫学证明，培养细胞是内皮细胞，并具有合成、释放ＡＣＥ和ＶＷＦ的生物学功能。     

巨大肾周脂肪肉瘤1例

本院于１９９９年２月收治１例右侧巨大肾周脂肪瘤，现报告如下。患者，女，４９岁。右腰部酸痛不适２０年，胀痛１个月入院。无血尿及尿频、尿急、尿痛，无发热。体检：右上腹触及１０ｃｍ×１０ｃｍ×９ｃｍ质韧边界不清之包块，双合诊稍可推动，轻压痛。Ｂ超显示右肾５．４ｃｍ×１２．０ｃｍ×６．２ｃｍ，其中下及后外侧扫及１０．２ｃｍ×９．４ｃｍ×９．６ｃｍ异常回声区，境界清，轮廓规则，血流可见，与右肾同步运动，无界面可分。右集合系统分离２．３ｃｍ。电子计算机体层扫描（ＣＴ）示：右肾下极见９．０ｃｍ×８．０ｃｍ×６…     

Augiostatin对小鼠肺腺癌LA795的生长抑制作用

为探讨ａｎｇｉｏｓｔａｔｉｎ（血管抑制因子）对小鼠肺腺癌ＬＡ７９５的治疗作用,将４×１０５ＬＡ７９５细胞接种于Ｔ７３９小鼠皮下,细胞接种后第１４ｄ,治疗组给予ａｎｇｉｏｓｔａｔｉｎ腹腔注射,对照组注射等量ＰＢＳ液,共１４ｄ,观察肿瘤大小及动物生存期。结果：治疗组肿瘤直径由２．３５±０．１６ｃｍ缩小至０．９７±０．３４ｃｍ,而对照组瘤体直径由２．２６±０．１２ｃｍ增至４．０２±０．３６ｃｍ,两者之间差异显著（Ｐ＜０．０１）。治疗组平均生存期７６．６ｄ,对照组为３８．４ｄ,统计学分析差异显著（Ｐ＜０．０１）。结论：ａｎｇｉｏｓｔａｔｉｎ可以抑制ＬＡ７９５细胞所致小鼠实验性肿瘤的生长,显著延长动物生存期,可能是治疗恶性肿瘤的一种全新的有效物质。     

不同分离方法对大鼠表皮屏障功能的影响

目的：研究不同表皮分离方法对大鼠表皮水渗透屏障功能的影响。方法：用胰蛋白酶法、Ｄｉｓｐａｓｅ法、加热法和一天培养－加热法四种不同方法从新生大鼠皮肤上分离得到大鼠表皮，在气－液面培养的不同阶段测定表皮的水渗透屏障系数并与新生大鼠皮肤的屏障功能相比较。结果：表皮水渗透系数（Ｋｐ）值在胰蛋白酶法为（２．１±０．９）ｃｍ·ｈ－１，Ｄｉｓｐａｓｅ法为（３．８±１．２）ｃｍ·ｈ－１，加热法为（４．３±１．４）ｃｍ·ｈ－１，一天培养－加热法为（２．２±０．７）ｃｍ·ｈ－１，而新生大鼠皮肤的Ｋｐ值为（１．９±０．９）ｃｍ·ｈ－１。Ｄｉｓｐａｓｅ法和加热法有可能损伤表皮的屏障结构导致表皮水渗透性增高。此种损伤经过约３ｄ的气－液面培养后即可得到部分的修复。在气－液面培养条件下，表皮正常的屏障功能可维持８～１０ｄ。结论：胰蛋白酶和一天培养－加热分离法对大鼠表皮屏障功能无明显损伤作用。在气－液面培养条件下，该表皮可维持正常的屏障功能     

人体髋骨、股骨的形态与高难运动技术的关系

对６６名从事高难运动技术的体操、跳水、艺术体操运动员的髋骨和股骨进行了活体与Ｘ线的测量。健将级运动员的大转子间距男子为２８±１．５ｃｍ，女子为２８±１。７ｃｍ：业余运动员男子为２５±２．０ｃｍ，女子为２５±１．８ｃｍ，均较对照组小（Ｐ＜０．１，Ｐ＜０．２），表明运动员的髋部普遍窄小。股骨颈的垂直颈健特级运动员男子为４．２±０．８ｃｍ，女子为３．２±０．８ｃｍ，业余运动员男子为２．５±０．５ｃｍ，女子为２．４５±０．４ｃｍ，均大于对照组（Ｐ＜０ｄ．２，Ｐ＜０．５）。股骨颈干角健将级运动员男子为１２９±３°，女子为１３０±３°，业余运动员男子为１５２±３°，女子为１５８±３．３°，均小于对照组（Ｐ＜０．１，Ｐ＜０．２），表明经过长期训练的运动员股骨颈增粗，颈干角变小，有利于高难动作的完成。     

经皮穿刺球囊二尖瓣成形术25例分析

采用Ｉｎｏｕｅ球囊导管对２５例二尖瓣狭窄病人行经皮穿刺球囊成形术，术后左房平均压自３．０７±０．９５ｋＰａ降为１．２７±０．５７ｋＰａ（Ｐ＜０．００１），肺动脉压自５．７４±２．２１ｋＰａ降为３．８３±１．８５ｋＰａ（Ｐ＜０．００１），二尖瓣口面积自１．１７±０．３３ｃｍ２增至２．２５±０．４１ｃｍ２（Ｐ＜０．００１），左房内经自４３．３０±５．１０ｍｍ减小为３７．１０±５．９１ｍｍ。     

股三角区血管的局部解剖和临床探讨

为给股动脉静脉穿刺插管提供解剖学数据，对４０例成人尸体进行肌三角的解剖学研究，结果提示：穿刺点矩耻骨联合中点垂直距离，股动脉为７．０±０．７ｃｍ股静脉为６．１±０．９ｃｍ穿刺两血管的夹角；针矢角，股动脉为８．４±１．６，股静脉８．４°±１．８°，针额角，股动脉为１６．１°±２．３°股静脉为１６．０°±２．４°股动脉穿刺深度分别为２．８±０．２ｃｍ，２．９±０．２ｃｍ，按此进针点及角度和深度穿刺，并     

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.