鼻咽癌患者前列环素及血栓素与外周血细胞免疫状况

应用间接免疫荧光法和放射免疫法分别检测了 34例鼻咽癌患者外周血中淋巴细胞的数量和血浆前列环素(PGI2 )及血栓素 (TXA2 )的含量 ,并与正常对照组对比研究。结果显示 :鼻咽癌患者外周血中 CD4细胞减少 (P<0 .0 1) ,而 CD8细胞则明显升高 (P<0 .0 5 )。同时鼻咽癌患者血浆中 PGI2 和 TXA2 的稳定代谢产物 6 - keto- PGF1α及 TXB2分别比对照组升高 ,以 TXB2 升高更明显 (P<0 .0 5 )。提示鼻咽癌患者体内前列腺素类物质 PGI2 和 TXA2 与鼻咽癌患者机体细胞免疫功能有关 ,并对其作为一种可能性抑制因素在鼻咽癌细胞免疫中的作用进行了讨论     

门脉压力与胃粘膜中PGI2及TXA2的含量——门脉高压性胃炎的实验与临床研究

测定门脉高压大鼠及患胃粘膜中前列环素（PGI2）及血栓素（TXA2）的稳定代谢产物6－Keto-PGF1α（简称6K）及TXB2的含量。结果：门脉压力（PP）增高时，大鼠和人胃粘膜中内源性PGI2含量明显降低，但TXA2变化不大，导致PGI2／TXA2比值下降。提示门脉高压性胃炎的发生及预后可能与P守高使胃粘膜局部内源性PGI2的合成减少有关。     

血栓素与6-酮-前列腺素F1α含量测定在肾移植急性排斥中的临床意义

肾脏是体内合成血栓素A2(TXA2)、前列环素(FGI2)和前列腺素E2(PGE2)等激素的主要器官。TXA2和PGI2之间存在一种拮抗和平衡关系。放免分析法检测TXB2和6-KetoPGF1α(TXA2和PGI2代谢产物)及临床应用已有报道。用在肾移植急性排斥上报道甚少。本文通过对急性肾排斥患者尿藏、血液TXB2和-6-Keto-PGF1α。含量检测,探讨其临床意义。     

2型糖尿病患者血浆TXA2和PGI2失衡及PLA2活性变化

目的：探讨2型糖尿病（DM）患者血栓素A2（TXA2）和前列环素（PGI2）失衡及PLA2活性变化。方法：以放免法测定血栓素B2和6－酮－前列腺素含量,以改良Zieve法测定血浆PLA2活性,同时观察空腹血糖（FBG）、空腹胰岛素（FINS）、甘油三酯（TG）等的变化。结果：①2型DM患者存在TXA2和PGI2合成异常,且Ⅱ组（有微血管病变组）较I组（无微血管病变组）更为严重;②2型DM患者组血浆PLA2显著低于正常对照组,但I组与Ⅱ组之间无显著差异;③2型DM患者组TXB2与FBG、TG显著正相关,6－K－PGF1a与FINS显著负相关,TXB2与6－K－PGF1a均与血浆PLA2无显著相关性。结论：①TXA2和PGI2失衡在2型糖尿病及微血管病变的发生发展中起重要作用;②血浆分泌型PLA2活性变化与2型糖尿病密切相关,但在糖尿病患者TXA2和PGI2失衡及微血管病变中可能不起直接作用;③糖脂代谢紊乱以及高胰岛素血症在TXA2和PGI2失衡及DM微血管病变中起重要作用。     

《第二军医大学学报》再次被评为中国医药卫生核心期刊

通过建立家兔急性不完全性脑缺血模型，测定其缺血前后血液流变学各项指标及血栓素（TXA2）、前列环素（PGI2）之代谢产物血栓素B2（TXB2），6－酮－前列腺素F1α（6－Keto－PGF1α）含量，结果发现脑缺血急性期存在着全血粘度升高，红细胞电泳率减慢，变形指数降低，血浆纤维蛋白原含量增加等血液流变学异常；同时存在6－Keto－PGF1α含量降低，提示脑缺血急性期可继发血粘度增高等一系列血液流变学异常，应引起重视，尽早阻断这一恶性循环．     

72例急性脑血管意外患者血浆中的血栓素、前列环素

为了探讨急性脑卒中患者血浆中的血栓素、前列环素含量的变化及其意义，采用放射免疫分析，对临床上，脑CT诊断明确的72例脑血管疾患，对其血浆中血栓素(TXB2)前列环素(6-K-Pcfla)含量进行比较，结果 发现脑梗塞患者血浆中血栓素明显高于脑溢血，蛛网膜下腔出血患者，脑溢血患者血浆中前列环素高于蛛网膜下腔出血，提示血浆中血栓素、前列环素含量变化对脑血管意外(脑梗塞，脑溢血)有着重要作用。大量研究表明：血栓素：前列环素对生物活动物质，脑血管病疾患的发病、发展有着密切相关，TXB2含量增高，可促使缺血性卒中的发生，并加重脑损害。TXB2含量在脑血管疾患发生中起十分重要作用。     

原发性肾病综合征患儿血清和尿TXB2、6-Keto-PGFlα含量测定

目的：观察血栓素A2(TXA2)和前列环素(PGI2)在小儿原发性肾病综合征发病中的作用。方法：采用放射免疫法检测35例原发性肾病综合征患儿(单纯性肾病组23例,肾炎性肾病组12例)和27例健康儿童(对照组)血清及尿中TXA2代谢产物血栓素B2(TXB2)、PG12代谢产物6-酮-前列腺素F1α(6-Keto-PGF1α)含量。结果：与对照组比较,无论单纯性肾病或肾炎性肾病患儿血清和尿中TXB2含量及TXB2／6-Keto-PGF1α明显升高(P<0．05);6-Keto-PGF1α含量无变化;单纯性肾病与肾炎性肾病2组间比较,各指标间差异无显著性(P>0．05)。结论：TXA2和TXA2／PGI2平衡失调可能参与了原发性肾病综合征的发病。     

原发性肾病综合征患儿血清和尿TXB2、6-Keto-PGFlα含量测定

目的观察血栓素A2(TXA2)和前列环素(PGI2)在小儿原发性肾病综合征发病中的作用。方法采用放射免疫法检测35例原发性肾病综合征患儿(单纯性肾病组23例,肾炎性肾病组12例)和27例健康儿童(对照组)血清及尿中TXA2代谢产物血栓素B2(TXB2)、PG12代谢产物6-酮-前列腺素F1α(6-Keto-PGF1α)含量。结果与对照组比较,无论单纯性肾病或肾炎性肾病患儿血清和尿中TXB2含量及TXB2／6-Keto-PGF1α明显升高(P<0．05);6-Keto-PGF1α含量无变化;单纯性肾病与肾炎性肾病2组间比较,各指标间差异无显著性(P>0．05)。结论TXA2和TXA2／PGI2平衡失调可能参与了原发性肾病综合征的发病。     

丹参对缺血再灌注心肌脂质过氧化及其TXA2／PGI2平衡关系的影响

目的和方法用硫代巴比妥酸比色法和放免方法检测缺血再灌注家兔心肌丙二醛(MDA)及血浆血栓素A2(TXA2)、前列环素(PGI2)浓度变化,探讨氧自由基(OFR)与TXA2、PGI2在心肌缺血再灌注损伤中的作用.结果与对照组比较缺血及再灌注组心肌组织MDA明显升高,心肌组织含水量增加,再灌注组血浆TXA2浓度及TXA2/PGI2比值高于对照组,TXA2与心肌组织MDA含量呈正相关(r=0.73,P＜0.05).结论OFR与TXA2/PGI2 平衡失调相互作用,可能共同参与心肌缺血再灌注损伤的发生.丹参可减轻上述的变化.     

中医肝病各证患者血浆血栓素B2和前列腺环素I2水平研究

为研究中医肝病各证患者血浆中血栓素B2和前列环素I2（PGI2）水平，用放射免疫法测定160例中医肝病各证型的血浆血栓素B2（TXB2）和6－酮－前列腺素F1α（6-keto-PGF1α）的含量与健康人45名比较，发现肝气郁结证、肝阳上亢证、肝阳化风证、肝火上炎证、肝血虚证均呈TXB2升高，除肝火上炎证外，其余4证6－keto-PGF1α下降；5类证型TXB2／6－keto-PGF1α比值均升高，提示与植物性神经功能异常，神经递质释放水平和环核苷酸代谢有关。     

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.     

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.     

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…     

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.     

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.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.