雷公藤单体T_4对类风湿关节炎患者周围血单个核细胞及滑膜细胞产生肿瘤坏死因子的影响

观察了经雷公藤单体Ｔ_４处理２ｈ后对正常人和类风湿关节炎（ＲＡ）患者外周血单个核细胞（ＰＢＭＣ）及ＲＡ患者消化的滑膜单个细胞（ＲＡ－ＤＳＳＣ）分泌ＴＮＦ的影响。在３５ｎｇ／ｍｌ浓度下，正常人ＰＢＭＣ（ｎ＝１０）及ＲＡ－ＰＢＭＣ（ｎ＝６）Ｔ_４处理组产生ＴＮＦ活性水平明显低于对照组（Ｐ＜０．００１）。延长Ｔ_４作用时间至６ｈ，ＲＡ－ＰＢＭＣＴ_４处理组ＴＮＦ活性水平下降更为明显（Ｐ＜０．００１），表明Ｔ_４可抑制ＰＢＭＣ体外产生ＴＮＦ活性水平，其对ＲＡ－ＰＢＭＣ作用不同时间的抑制率分别为２５．５４％及４０．５１％（Ｐ＜０．０１），说明Ｔ_４抑制作用可能与作用时间有关。同时Ｔ_４亦可抑制ＲＡ－ＤＳＳＣ体外产生ＴＮＦ活性水平（Ｐ＜０．０１），提示Ｔ_４有望成为一新的植物性治疗ＲＡ药物。     

雷公藤单体T4对类风湿关节炎患者周围血单个核细胞及滑膜…

观察了经雷公藤单体Ｔ４处理２ｈ后对正常人和类风湿关节炎患者外周血单个核细胞及ＲＡ患者消化的滑膜单个细胞分泌ＴＮＦ的影响。在３５ｎｇ／ｍｌ浓度下，正常人ＰＢＭＣ（ｎ＝１０）及ＲＡ－ＰＢＭＣ（ｎ＝６）Ｔ４处理组产生ＴＮＦ活性水平明显低于对照组（＜０．００１）。延长Ｔ４作用时间至６ｈＲＡ－ＰＢＭＣＴ４处理组ＴＮＦ活性水平下降更为明显（Ｐ＜０．００１），表明Ｔ４可抑制ＰＢＭＣ体外产生ＴＮＦ活性水平，其对Ｒ     

肺癌患者产生肿瘤坏死因子能力的研究

采用生物学检测手段，对３８例肺癌患者末梢血单个核细胞（ＰＢＭＣ）产生肿瘤坏死因子（ＴＮＦ）的能力进行了研究。结果表明：肺癌患者ＰＢＭＣ产生ＴＮＦ能力较对照组明显增高（Ｐ〈０．０１），Ⅰ、Ⅱ、Ⅲ期之间ＰＢＭＣ产生ＴＮＦ能力无明显性差异（Ｐ〉０．０５），肺癌患者ＰＢＭＣ产生ＴＮＦ能力增强，可能是机体的主动抗肿瘤免疫反应。     

肺癌患者外周血单个核细胞分泌白细胞介素—2受体的研究

采用ＥＬＩＳＡ法对３３例肺癌和２８例健康人外周血单个核细胞（ＰＢＭＣ）分泌可溶性白细胞介素－２受体（ｓＩＬ－２Ｒ）能力的研究显示：肺癌患者ＰＢＭＣ分泌ｓＩＬ－２Ｒ能力明显高于健康人（Ｐ〈０．０１）。但鳞癌、腺癌、小细胞未分化癌之间，ＰＢＭＣ分泌ＳＩＬ－２Ｒ能力无差别，三者分别较显著增高（Ｐ〈０．０１）。在肺癌Ⅰ、Ⅱ、Ⅲ、Ⅳ期之间，ＰＢＭＣ分泌ＳＩＬ－２Ｒ能力亦显显著性差异。     

直肠癌患者血清sIL—2R及TNF表达水平的研究

对３０例直肠癌患者血清可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）和肿瘤坏死因子（ＴＮＦ）表达水平进行了动态及临床分期观察，并以３０例正常人作为对照，结果表明，直肠癌患者血清ｓＩＬ－２Ｒ及ＴＮＦ水平较正常人显著升高（Ｐ〈０．０１），其中ＤｕｋｅｓＣ，Ｄ期ＳＩＬ－２Ｒ水平又明显高于ＤｕｋｅｓＡ，Ｂ期（Ｐ〈０．０１０。手术治疗一周后，ｓＩＬ－２Ｒ未见下降，患者机制仍处于免疫抑制状态。提示手术后患者免疫功能的     

肺癌患者外周血单个核细胞分泌白细胞介素－2受体的研究

采用ＥＬＩＳＡ法对３３例肺癌和２８例健康人外周血单个核细胞（ＰＢＭＣ）分泌可溶性白细胞介素－２受体（ｓＩＬ－２Ｒ）能力的研究显示：肺癌患者ＰＢＭＣ分泌；ＩＬ－２Ｒ能力明显高于健康人（Ｐ＜０．０１）。但鳞癌、腺癌、小细胞未分化癌之间，ＰＢＭＣ分泌ｓＩＬ－２Ｒ能力无差别，三者分别较健康人显著增高（Ｐ＜０．０１）。在肺癌Ⅰ、Ⅱ、Ⅲ、Ⅳ期之间，ＰＢＭＣ分泌ｓＩＬ－２Ｒ能力亦无显著性差异。     

食管癌,贲门癌患者围术期外周血T细胞亚群,sIL—2R,TNF—β动态观测及相关因

目的 探讨食管癌、贲门癌患者围期外周血Ｔ淋巴细胞亚群、ｓＩＬ－２Ｒ、ＴＮＦ－β改变的规律性、相关因素及临床意义。方法 应用ＳＡＰ法、ＥＬＩＳＡ法及ＡＢＣ－ＥＬＩＳＡ法分别检测３２例食管癌、２２例贲门癌患者术前、术后１、２、３周外周血Ｔ淋巴细胞亚群、ｓＩＬ－２Ｒ及ＴＮＦ－β表达,并将所得结果与正常对照组作对比研究。结果 与正常对照组比较,食管癌、贲门癌患者外周血ＣＤ３＾＋、ＣＤ４＾＋明显减少,而ＣＤ８＾＋明显增加,ＣＤ４＾＋／ＣＤ８＾＋比值明显下降（Ｐ〈０．０１）,ｓＩＬ－２Ｒ及ＴＮＦ－β水平明显升高（Ｐ〈０．０１）。患者免疫功能损害程度与肿瘤ＴＮＭ分期相关。手术创伤使机体免疫功能在术后短期内受到抑制。Ⅲ期手术探查组患者与同期手术根治组患者比较,ｓＩＬ－２Ｒ及ＴＮＦ－β水平显著增加（Ｐ〈０．０１）。结论 食管癌、     

直肠癌患者血清sIL－2R及TNF表达水平的研究

对３０例直肠癌患者血清可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）和肿后坏死日子（ＴＮＦ）表达水平进行了动态及临床分期观察，并以３０例正常人作为对照。结果表明：直肠癌患者血清ｓＩＬ－２Ｒ及ＴＮＦ水平较正常人显著升高（Ｐ＜０．０１），其中ＤｕｋｅｓＣ，Ｄ期ＳＩＬ－２Ｒ水平又明显高于ＤｕｋｅｓＡ，Ｂ期（Ｐ＜０．０ｌ）。手术治疗一周后，ｓＩＬ一２Ｒ未见下降，患者机体仍处于免疫抑制状态。提示手术后患者免疫功能的恢复可能是一个较为缓慢的过程。     

子宫内膜异位症患者sIL—2R,TNF—α及T细胞亚群的检测及 …

对３６例子宫内膜异位症（Ｅｎｄｏｍｔｒｉｓｉｓ ＥＭＳ）患者的外周血及腹腔液进行了ｓＩＬ－２Ｒ、ＴＮＦ－α及Ｔ细胞亚群的检测,与对照组相比,ＥＭＳ患者ｓＩＬ－２Ｒ、ＴＮＦ－α水平明显升高（Ｐ〈０．０１）．Ｔ细胞亚群ＣＤ４＾＋及ＣＤ４＾＋／ＣＤ８＾＋经值明显升高（Ｐ〈０．０１）。实验结果显示ＥＭＳ患者免疫调节功能紊乱。     

天然DNA和细胞因子对系统性红斑狼疮患者淋巴细胞体外分泌抗双链DNA抗体的影响

检测６例活动期、６例缓解期系统性红斑狼疮（ＳＬＥ）患者和１０例正常人血清和外周血单个核细胞（ＦＢＭＣ）自发及经天然ＤＮＡ（ｎＤＮＡ）、重组白介素２（ｒＩＬ－２）和重组γ干扰素（ｒＩＦＮ－γ）锈导后分泌ＩｇＧ类抗双链ＤＮＡ（ｄｓＤＮＡ）特异性抗体水平，观察到活动期患者血清中含量和自发分泌量显著高于缓解期，后者又显著高于正常人，且体外细胞分泌水平与血清中含量密切相关（ｒ＝０．９８８２）。ｎＤＮＡ能特异地激发ＳＬＢ患者的ＰＢＭＸＣ分泌抗ｄｓＤＮＡ抗体，但对正常人无作用。ｒＩＬ－２和ｒＩＦＮ－γ皆能增强ＳＬＥ患者ＰＢＭＣ产生抗ｄｅＤＮＡ抗体。ｎＤＮＡ和ｒＩＬ－２联合应用时对活动期患者ＰＢＭＣ分泌抗ｄｓＤＮＡ抗体有协同作用。作者未发现重组白介素６（ｒＩＬ－６）对抗ｄｓＤＮＡ抗体分泌的影响。     

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.