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。     

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     

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。     

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     

血清瘦素与慢性阻塞性肺病患者营养状况的关系研究

目的　探讨血清瘦素与慢性阻塞性肺病 (COPD)患者营养状况的关系。方法　测定 42例COPD患者 (营养不良组 2 0例 ,非营养不良组 2 2例 )及 18名正常人的血清瘦素、体重指数 (BMI)、理想体重百分比 (IBW % )、三头肌皮皱厚度 (TSF)、血清白蛋白 (ALB)、血糖 (G)值。分析瘦素与各项指标的相关性。结果　 3组血清瘦素浓度 2 .7± 2 .1μg/L ,与BMI ,IBW % ,TSF ,MAMC呈正相关 (P <0 .0 0 1) ,与血糖水平及ALB无相关性 ;营养不良组血清瘦素浓度 1.4± 2 .1μg/L ,显著低于非营养不良组 3 .6± 1.8μg/L ,非营养不良组血清瘦素浓度与正常组比较差异无显著性 (P >0 .0 5 )。结论　血清瘦素浓度与COPD患者的营养参数相关 ,瘦素与COPD营养不良的发生有关     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

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.     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.     

Possible Spread of adenovirus type 3 from poultry to humans ：indirect evidence from an outbreak in China

Objective:To explore the epidemiology and etiology for an outbreak of acute respiratory tract infection that occurred in one county of Jiangsu Province, China 2004. Methods: Only cases meeting the case definition were included in the study. We reviewed the medical records of the cases who were admitted to the local hospitals, interviewed cases by a standard questionnaire, and then described the epidemiotogic features and analyzed risk factors by means of a case-control study. We collected pharyngeal swab specimens and sent them to different laboratories for isolation and culture. The laboratory used different detection methods such as DIP, PCR, electron microscope examination and microneutralization assay, to identify and then type the positive specimens. Results:A total of 871 cases were reported during the period from April 18 to July 4,2004. The distribution of onset times presented two peaks, one in late May and another in middle June. The epidemic occurred mainly in the elementary and junior high schools in ten townships of one county, and the mean age of the cases was 12 years (range 7 months to 18 years). The course of the disease was acute, and was characterized by fever accompanied with sore throat and tonsillitis. The WBC count of cases was normal or elevated. The mean duration of illness was 5 days (range 2 to 12 days). No fatalities from illness were reported. A case-control study indicated that the possible risk factors were close contact with a case and/or poultry before onset and sharing of towels among members of the family. The typical CPE was observed through inoculating pharyngeal swab specimens into the HEP-2 cell cultures in different laboratories. An infection of adenovirus type 3 was verified by detecting positive specimens in different methods. Conclusion:This investigation demonstrated that the acute respiratory infection in cases was caused by adenovirus type 3. Cases occurred in over 70 schools in ten townships in 2004, and the route of transmission was possibly close contact with cases or droplet transmission.