肿瘤与表皮生长因子的关系研究

目的通过观察肿瘤病人唾液和荷瘤动物血清中表皮生长因子(EGF)的含量,研究肿瘤与EGF的关系.方法采用125Ⅰ放射免疫分析法(RIA).结果152例肿瘤病人唾液中EGF含量为(4.070±1.0)μ/L,明显高于正常人的(3.071±1.7)μ/gL(P＜0.01);荷瘤小鼠血清中EGF含量为(0.28±0.09)μg/L,明显高于正常小鼠的(0.18±0.11)μg/L(P＜0.05).结论EGF含量升高与肿瘤生长密切相关.     

原发性肝癌患者血清sFas的检测及其意义

目的 :检测原发性肝癌患者血清可溶性 Fas(s Fas)的水平 ,并探讨其临床意义。方法 :采用生物素 -亲和素酶联免疫吸附试验 (Biotin- avidin enzyme- linked imm unosorbent assay,BA - EL ISA)检测来自广西的 2 7例原发性肝癌患者和 2 8例正常人血清的 s Fas。结果 :原发性肝癌组血清 s Fas水平为 (3.6 73± 1 .2 98)μg/ L ,高于正常对照组的 (2 .1 4 7± 0 .5 2 3)μg/ L (P <0 .0 5 )。肝癌患者 AFP阳性组、AFP阴性组与正常对照组血清 s Fas分别为 (3.6 5 7± 1 .0 99)μg/ L、(3.6 90± 1 .5 31 )μg/ L和 (2 .1 4 7±0 .5 2 3)μg/ L ,其中肝癌患者 AFP阳性组、AFP阴性组分别高于正常组 (P <0 .0 1 )。结论 :血清 s Fas水平增高 ,可能可作为原发性肝癌尤其是 AFP阴性的肝癌患者的诊断指标之一。     

甲亢患者血清瘦素水平的测定及意义

目的 :研究甲亢患者和正常人血清瘦素水平以及与FT3、FT4、性别的关系。方法 :用放射免疫分析法测定 32例甲亢患者 ,2 0例正常对照组的血清瘦素水平。结果 :甲亢患者血清瘦素为 9.31± 0 .2 4 μg/L ,正常对照组为 8.82± 0 .31 μg/L。甲亢患者血清瘦素 ,男性为 4 .81± 0 .1 7μg/L ,女性为 1 1 .52± 0 .2 8μg/L ;正常对照男性为 3 .87±0 .2 1 μg/L ,女性为 1 0 .37± 0 .32 μg/L。甲亢和正常对照组相比 ,血清瘦素无明显差异 (P >0 .5) ;两组中瘦素水平女性均明显高于男性 (P <0 .0 1 )。结论 :甲亢患者血清瘦素与正常人无明显差异。血清瘦素水平与性别明显相关     

足月妊娠产妇临产前后母血、羊水中EGF浓度变化分析

目的　探讨足月产妇临产前后母血、羊水中表皮生长因子 (EGF)浓度的变化与分娩发动的关系。方法　应用放射免疫法测定 5 3例足月产妇母血、羊水中EGF的浓度。其中临产组 2 8例 ,均为正常阴道分娩 ;未临产组2 5例 ,为择期剖宫产。结果　临产组母血、羊水中EGF浓度 (分别为 1.39± 0 .4 8ng L、1.17± 0 .33ng L)均显著高于未临产组 (分别为 1.0 2± 0 .4 2ng L、0 .82± 0 .4 9ng L) ,(P <0 .0 5 )。母血和羊水中EGF浓度之间无显著相关性 (r=0 .16 1,P >0 .0 5 )。结论　临产后母血、羊水中EGF浓度的升高可能与分娩启动及产程进展有关。     

肝癌患者介入化疗前后血清ApoA1浓度GPDA活性变化的研究

目的　了解肝癌患者化疗前后血清载脂蛋白A1(ApoA1)浓度 ,GPDA活性变化及临床价值。方法　采用单克隆抗体法和连续监测法分别检测肝癌、肝硬化和正常人血清ApoA1浓度、GPDA活性。结果　 5 6例肝癌患者、32例肝硬化患者和 30例正常人ApoA1浓度分别为 ( 1 3± 0 31)g/L、( 0 .90± 0 .2 9)g/L和 ( 1.11± 0 .2 4)g/L。GPDA活性分别为( 2 0 0± 110 .4)U/L、( 130 .0± 2 2 .1)U/L、( 79.5± 17.1)U/L ,肝癌组与肝硬化组和正常对照比较有显著性差异。化疗后ApoA1浓度为 ( 0 .97± 0 .34 )g/L、GPDA活性为 ( 162± 81 8)U/L。介入化疗前后分别比较有显著差异 (P <0 .0 5 ) ,但与血清AFP浓度无显著性相关。结论　肝癌患者血清ApoA1浓度、GPDA活性均增高 ,介入化疗后均降低 ,血清ApoA1浓度、GP DA活性的高低可作为肝癌疗效评价的参考指标     

鼠萎缩性胃炎表皮生长因子及其受体表达

目的 :探讨表皮生长因子 (EGF)与萎缩性胃炎的关系。方法 :应用放射免疫法和免疫组化 En vinsion技术检测 2 0例萎缩性胃炎和 2 0例正常 SD大鼠血清 EGF及胃粘膜组织 EGFR水平。结果 :萎缩性胃炎大鼠血清EGF水平为 (0 .14 9± 0 .0 2 )μg/ L ,EGFR表达的阳性率为 80 % ,较正常大鼠组 [(0 .0 4 3± 0 .0 0 3)μg/ L和 0 % ]明显增高 (P<0 .0 1)。结论 :实验性萎缩性胃炎大鼠体内有高水平 EGF/ EGFR表达。EGF/ EGFR可能参与了萎缩性胃炎的发生、转化过程。     

肺癌组织多肽特异性抗原、神经元特异性烯醇化酶检测意义的探讨

目的 :探讨血清组织多肽特异性抗原 (TPS)和神经元特异性烯醇化酶 (NSE)水平与肺癌的关系。方法 :应用微粒子酶放大化学发光免疫分析技术 (EMIT)及酶联免疫吸附双抗体夹心法 (EL ISA)分别对 4 7例肺癌患者血清中 TPS、NSE进行测定 ,并与 4 0例正常人进行比较。结果 :肺癌组 TPS平均值为 (117.16± 6 4 .35 ) U /L ,NSE为 (2 3.5 8± 14 .5 0 )μg/L ,二者有显著相关(r =0 .35 7,P <0 .0 1) ,明显高于正常对照组 [TPS、NSE水平均值分别为 (2 4 .5 8± 17.91) U /L与 (8.36± 3.12 )μg/L ](均 P<0 .0 0 1)。结论 :TPS可作为肺癌特有的肿瘤标志物 ,与 NES联合检测 ,可提高肺癌阳性诊断率。     

哮喘儿童嗜酸细胞阳离子蛋白含量变化与其肺功能的关系

采用 Pharmacia Uni CAP系统检测 2 5例哮喘患儿急性发作期及 17例治疗后血及诱导痰嗜酸细胞阳离子蛋白 ( ECP)的含量 ,计数静脉血嗜酸粒细胞 ( Eos) ,测定肺通气功能 FEV1 。结果 :急性发作期哮喘血 Eos( 0 .2 75± 0 .2 63)× 10 9/L 较正常升高 ( 0 .0 68± 0 .0 2 8)× 10 9/L,P<0 .0 1;血 ECP浓度 ( 16.0 9± 13.68μg/L)高于正常对照和治疗后 ( 3.78±1.77μg/L;4.2 4± 2 .5 6μg/L) ,P<0 .0 1。发作期痰液 ECP浓度 ( 78.68± 5 3.95 μg/L)明显高于治疗后 ( 2 2 .5 4± 15 .83μg /L) ,P<0 .0 1。哮喘患儿血 Eos计数与血 ECP浓度存在显著正相关 r=0 .5 716,P<0 .0 1;与痰 ECP浓度无相关 r=0 .2 792 ,P>0 .0 5。血、痰 ECP含量与FEV1 呈显著负相关 r=-0 .430 9、-0 .40 5 0 ,P均 <0 .0 5。提示 ECP在哮喘气道炎症机理中起作用 ,是临床评价哮喘活动的指标之一     

茶色素对早期糖尿病肾病患者血浆GMP-140和血浆内皮素的影响

目的 :探讨茶色素对早期糖尿病肾病患者血浆GMP - 14 0和血浆内皮素 (ET)的影响及临床意义。方法 :6 8例早期糖尿病肾病患者随机分成对照组 (n =34)和治疗组 (n =34)两组 ,对照组采用糖尿病 (DM )常规治疗 ,治疗组在常规治疗基础上加用茶色素治疗 ,每天 3次 ,每次 0 .2 4 g口服。两组疗程均为 8周。另选取 30名正常人为健康人组。采用放射免疫法和酶联免疫吸附法分别测定健康人组、对照组与治疗组治疗前后血浆ET、2 4h尿白蛋白排泄率 (UAER)和血浆GMP - 14 0。结果 :糖尿病肾病 (DN)患者血浆ET、血浆GMP - 14 0水平显著高于健康人 (均P <0 .0 1) ,治疗组治疗后血浆ET、血浆GMP - 14 0、UAER水平分别为 70 .6± 19.7ng/L、6 8.9± 19.7μg/L、6 9.5 2± 4 0 .2 7μg/min ,较治疗前的 10 3.2± 2 6 .3ng/L、10 1.2± 39.5 μg/L、10 9.31±72 .15 μg/min明显降低 (均P <0 .0 1) ,对照组治疗后血浆ET、血浆GMP - 14 0、UAER水平分别为 98.4±2 4 .2ng/L、89.2± 35 .9μg/L、95 .35± 4 9.92 μg/min ,较治疗前的 10 1.8± 2 5 .9ng/L、98.9± 37.1μg/L、10 8.2 3±6 9.72 μg/min无明显变化 (均P >0 .0 5 ) ,治疗组治疗 8周后血浆ET、血浆GMP - 14 0、UAER较对照组显著下降 (P <0 .0 1,P <0 .0 5 ,P <0     

瘦素在超排卵周期的变化及对体外受精-胚胎移植结局的影响

目的 :探讨超排卵对瘦素水平的影响以及瘦素水平对体外受精 -胚胎移植 (IVF- ET)结局的影响。方法 :应用酶联免疫吸附法和放射免疫法分别测定 39例 IVF- ET患者在注 FSH、HCG前和取卵前的血清瘦素及排卵前卵泡的卵泡液瘦素、E2 水平。结果 :血清瘦素水平在注 HCG前 (2 6 .1± 2 .3)μg/ L明显高于注 FSH前 (9.3± 1.0 )μg/ L和取卵前 (15 .8± 2 .3) μg/ L,P均 <0 .0 0 1;卵泡液 (18.5± 2 .2 ) μg/ L和同期血清 (15 .8± 2 .3) μg/ L的瘦素水平比较 ,经 t检验无显著性差异 ;妊娠组的卵泡液和同期血清瘦素水平 (11.7± 1.8) μg/ L和 (8.7± 1.5 ) μg/ L明显低于非妊娠组的卵泡液和同期血清瘦素水平 (2 0 .8± 2 .7) μg/ L和 (18.3± 2 .9) μg/ L,P<0 .0 5。结论 :超排卵后瘦素浓度过高可能不利于卵泡的生长和发育。     

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.