白细胞介素-1β增强子宫内膜基质细胞表达RANTES的研究

目的：探讨白细胞介素-1β（IL-1β）与正常T细胞表达和分泌的调节活化蛋白（RANTES）的相互关系及其在子宫内膜异位症（EMs）发病中的作用。方法：培养EMs在位内膜基质细胞作为体外实验模型,分别加入浓度为0．1、1．0、10．0ng／ml的IL-1β后采用RT-PCR、ELISA法从转录及转录后水平观察趋化因子RANTES的表达。结果：RT-PCR结果显示,基础状态下EMs在位内膜基质细胞有RANTESmRNA的表达。0．1ng／ml的IL-1β作用4h即可明显增加细胞RANTES mRNA的表达（P〈0．05）,1．0ng／ml的IL-1β作用8h时作用达高峰,随着时间的递增,mRNA水平呈递减趋势,且各浓度组之间差异无显著性。ELISA结果显示,基础状态下细胞培养上清液内有微量RANTES蛋白的表达。0．1ng／ml浓度的IL-1β作用4h即可显著诱导细胞分泌RANTES,1．0ng／ml浓度的IL-1β作用12h培养上清液中RANTES含量达高峰。结论：IL-1β可增强EMs在位内膜基质细胞对RANTES的基因表达,二者在EMs的发病过程起重要作用。     

长效醋酸甲孕酮降低大鼠子宫内膜异位症模型中内膜RANTES的表达

目的：探讨长效醋酸甲孕酮(DMPA)对大鼠实验性子宫内膜异位症模型中正常T细胞表达和分泌的受激活调节因子RANTES表达的影响。方法：参照Jones方法建立大鼠子宫内膜异位症动物模型,将建模成功的大鼠随机分为对照组和DMPA治疗组,采用EI．ISA法检测两组子宫在位内膜、异位内膜和血清中RANTES的水平。结果：DMPA治疗组在位、异位内膜和血清中RANTES水平(中位数)分别为89．2,199．4,6 871．5 ng／L;对照组在位、异位内膜和血清中RANTES水平(中位数)分别为141．8,401．8,7 523．3 ng／L。DMPA治疗组在位内膜RAN—TES的水平与对照组比较,差异有显著性(P％0．05)；其异位内膜RANTES的水平与对照组比较,差异有极显著性(P<0．01)；两组血清中的RANTES水平差异无显著性(P>0．05)。结论：DMPA能有效降低子宫内膜异位症模型中内膜RANTES的表达。DMPA可能通过下调内膜RANTES的表达,抑制盆腔的炎性反应,从而缓解子宫内膜异位症患者的盆腔疼痛。     

子宫内膜异位症患者血清、腹腔液、在位/异位内膜组织中RANTES的表达及意义

目的研究子宫内膜异位症(Ems)患者血清、腹腔液、在位/异位内膜组织中RANTES的表达及意义。方法采用酶联免疫吸附(ELISA)法测定研究组(经腹腔镜确诊为盆腔Ems的育龄期妇女,30例)及对照组(因盆腔良性肿瘤行腹腔镜手术、且盆腔结构正常妇女,19例)的血清、腹腔液、在位内膜及异位内膜组织中RANTES的表达,并分析RANTES水平与手术RAS评分、痛经程度的关系。结果血清中RANTES水平:研究组及对照组差异无统计学意义(P=0.350),与手术RAS评分、痛经程度之间无相关性;腹腔液中RANTES水平:研究组与对照组差异有统计学意义(P=0.041),研究组Ⅰ-Ⅱ期与Ⅲ-Ⅳ期差异有统计学意义(P=0.001),与手术RAS评分呈正相关(r=0.764、P=0.000),但与痛经程度无相关性。异位内膜组(n=16)与正常内膜组(n=13)、在位内膜组(n=22)与正常内膜组、异位内膜组与在位内膜组之间RANTES水平差异有统计学意义(P=0.000、P=0.000、P=0.005),在位内膜组、异位内膜组Ⅰ-Ⅱ期与Ⅲ-Ⅳ期RANTES水平差异有统计学意义(P=0.008、P=0.018);异位内膜组和在位内膜组RANTES水平与手术RAS评分呈正相关(r=0.745、P=0.005,r=0.515、P=0.034),但与痛经程度均无相关性。结论 RANTES在Ems患者腹腔液、异位内膜、在位内膜中表达明显增强,且与手术RAS评分呈正相关,与痛经程度无相关性,推测RANTES参与了Ems的发生、发展过程。     

TNF-α及sTNFRⅠ对子宫内膜异位症在位内膜基质细胞的作用

目的:探讨肿瘤坏死因子α(tumor necrosis factor,TNF-α) 和可溶性肿瘤坏死因子受体(soluble TNFR I,sTNFR I)对体外培养的子宫内膜异位症(Endometriosis)患者在位内膜基质细胞的影响,为子宫内膜异位症的生物学治疗提供新思路.方法:对EMS患者的在位子宫内膜基质细胞进行体外培养.分别用不同浓度的TNF-α(0、0.1、1.0、10.0和100.0 ng/ml)或者同一浓度TNF-α(1 ng/ml)培养不同时间(4、8、12、24、48和72 h)或者TNF-α(1 ng/ml)和 sTNFR I(2 μg/ml)对基质细胞进行刺激并收集细胞上清液,利用双抗体夹心ELISA检测细胞培养上清液中IL-6、基质金属蛋白酶-3(matrix metalloproteinases,MMP-3)的水平.结果:TNF-α可促进体外培养的EMS子宫内膜基质细胞IL-6、MMP-3的分泌,而且IL-6、MMP-3浓度与TNF-α之间存在剂量、时间依赖关系(P<0.05),而sTNFR I具有抑制TNF-α的作用.结论:TNF-α在EMS的发病机制中发挥重要的作用,其对 EMS 患者子宫内膜基质细胞的促黏附、侵袭、增殖等作用可能是通过促进 IL-6、MMP-3 的分泌来完成的;sTNFR I有望用于EMS 生物学治疗.     

IL-1β对人分泌中期子宫内膜细胞分泌MMP-9及TIMP-3蛋白的影响

目的初步研究白介素-1β(IL-1β)对离体培养的分泌中期子宫内膜细胞分泌基质金属蛋白酶-9(MMP-9)及其特异性组织抑制物-3(TIMP-3)的影响。方法原代培养人分泌中期子宫内膜细胞,利用粘附式细胞仪570型,采用间接免疫荧光法检测IL-1β对内膜细胞分泌MMP-9和TIMP-3的影响。结果(1)MMP-9:空白对照组为1491.38±68.95,50U/ml组为1592.40±47.57,100U/ml组为1702.63±75.31,500U/ml组为1994.49±52.98,1000U/ml组为2347.58±45.87。随着IL-1β的浓度增加,原代培养的分泌中期子宫内膜细胞分泌MMP-9表达量呈浓度依赖性显著升高(P<0.05);(2)TIMP-3:空白对照组为1643.31±61.29,50U/ml组为1597.27±49.07,100U/ml组为1443.93±81.23,500U/ml组为1343.28±54.80,1000U/ml组为1157.85±47.95。随着IL-1β的浓度增加,原代培养的分泌中期子宫内膜细胞分泌TIMP-3表达量呈浓度依赖性显著下降(P<0.05)。结论IL-1β通过促进MMP-9分泌,抑制TIMP-3分泌,使细胞外基质降解,有利于绒毛滋养层细胞侵入。     

GnRHa对离体培养异位、在位内膜间质细胞生长抑制及分泌VEGF的影响

目的 研究GnRHa对子宫内膜异位症(简称内异症)患者离体培养异住、在位子宫内膜间质细胞生长抑制及分泌VEGF的影响.方法 体外原代培养人内异症异位、在位子宫内膜间质细胞,用10-10M、10-8和10-6M的GnRHa分别干预,用MTT法测定内膜间质细胞的生长增殖情况;用ELISA法测定其分泌的血管内皮生长因子(VEGF)浓度的变化.结果 GnRHa可抑制内异症异位及在位内膜间质细胞的生长增殖,呈剂量和时间依赖性(P<0.05).且对异位内膜问质细胞生长的抑制率明显高于在位(P<0.05);GnRHa可降低异位及在位内膜间质细胞分泌的VEGF的浓度,呈剂量依赖性(P<0.05),且高浓度(10-6M)对异位强于在位(P<0.05).结论 GnRHa可明显抑制子宫内膜异位症患者异住、在位子宫内膜间质细胞的生长,降低其分泌VEGF的浓度.     

LPS和PDTC对子宫内膜细胞培养上清液中IL-1β浓度的影响

目的了解LPS及LPS＋PDTC对正常及子宫内膜异位症患者的子宫内膜细胞IL-1β浓度的影响。方法分别用LPS及LPS＋PDTC干预正常及内异症患者的子宫内膜细胞,取培养上清液,用ELISA方法检测IL-1β的浓度变化。结果正常子宫内膜细胞IL-1β浓度变化差异无统计学意义,而内异症患者的在位及异位子宫内膜细胞IL-1β浓度变化差异有显著统计学意义。结论用LPS及PDTC激活及抑制NF—κB的活性,通过检测IL-1β浓度变化,了解NF—κB与子宫内膜异位症的关系及其在子宫内膜异位症的发病机制中起着重要作用。     

巨噬细胞及白介素1、8在子宫内膜异位症中的表达及临床意义

目的探讨巨噬细胞及白介素(IL)-1、8在子宫内膜异位症患者在位及异位子宫内膜中的表达及意义。方法收集40例子宫内膜异位症患者的在位和异位子宫内膜;以20例因单纯浆膜下子宫肌瘤行子宫全切除术患者的子宫内膜为对照组。采用免疫组化法测定各组患者子宫内膜中巨噬细胞CD68、IL-1和IL-8的表达。结果子宫内膜异位症患者在位内膜组织中的CD68表达明显高于对照组(<0.05),异位内膜组织中CD68表达亦明显高于在位内膜(<0.01);子宫内膜异位症在位内膜组织中的IL-1表达明显高于对照组(<0.01),异位内膜组织中IL-1表达亦明显高于在位内膜(<0.01);子宫内膜异位症患者在位内膜组织中的IL-8表达高于对照组,但差异无统计学意义(>0.05);异位内膜组织中IL-8表达亦明显高于在位内膜(<0.01)。结论子宫内膜异位症患者异位内膜组织巨噬细胞显著上调,并与其释放的细胞因子IL-1,IL-8协同参与子宫内膜异位症病灶的形成和发展。     

MMP-9和TIMP-3在内异症患者子宫内膜中的表达

目的观察比较基质金属蛋白酶(MMPs)和基质金属蛋白酶抑制物(TIMPs)在异位、在位和正常子宫内膜中的表达,探讨其与子宫内膜异位症(内异症)的关系.方法应用免疫组化LSAB法和KS 400图像分析系统,检测MMP-9和TIMP-3在26例卵巢子宫内膜异位囊肿患者的异位子宫内膜和其中15例在位子宫内膜中的表达,分析阳性细胞的分布规律,以20例正常子宫内膜作为对照.结果 MMP-9和TIMP-3在正常和异位子宫内膜的腺上皮细胞、基质细胞中均有不同程度的表达.异位子宫内膜组织中MMP-9呈高表达状态, TIMP-3表达减少,与正常子宫内膜和在位内膜相比有显著差异 (P<0.05);在位子宫内膜与正常子宫内膜MMP-9和TIMP-3的表达无显著差异(P>0.05).结论提示异位内膜组织具有更强的侵袭力,其在子宫内膜异位症发病中起重要作用.     

子宫内膜异位症组织中Survivin蛋白表达与凋亡的关系

目的研究子宫内膜异位症(EM)患者在位、异位内膜组织以及正常子宫内膜中的Survivin蛋白表达和细胞凋亡状况,探讨它们在子宫内膜异位症发生中的作用及临床意义。方法39例子宫内膜异位患者的39份异位子宫内膜及21份在位内膜为研究组;26例非子宫内膜异位症患者的子宫内膜为对照组。Survivin蛋白表达用免疫组化法检测;细胞凋亡用TUNEL法检测。结果EM组在位及异位内膜增生期Survivin蛋白表达水平分别明显高于同期正常子宫内膜水平(P<0.05)。EM组在位及异位内膜分泌期Survivin蛋白表达水平分别明显高于同期正常子宫内膜水平(P<0.05)。EM组在位及异位内膜增生期凋亡指数(AI)分别明显低于同期正常子宫内膜(P<0.05)。EM组在位及异位内膜分泌期AI分别明显低于同期正常子宫内膜(P<0.05)。EM组在位及异位内膜Survivin蛋白表达水平均与AI负相关(P<0.05)。结论子宫内膜异位症患者子宫内膜组织细胞凋亡水平下降。凋亡水平的下降导致经期脱落的子宫内膜细胞异位生存和种植的能力增强。子宫内膜异位症患者Survivin蛋白表达上调是导致其凋亡水平下降的机制之一。     

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.     

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     

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…     

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.     

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.