SMU1对正常人体外PBMNC功能效应的影响

目的：研究ＳＭＵ１（自制抗ＣＤ３）对正常人外周血单个核细胞（ＰＢＭＮＣ）的体外功能效应,方法：（地）以ＳＭＵ１６种不同浓度、ＩＬ－２、ＭＣＤ３（丝裂性抗ＣＤ３）孵育ＰＢＭＮＣ,观察细胞密度和形态变化,ＭＴＴ法测定细胞增殖力;（２）分别用ＳＭＵ１０．５ｍｇ／Ｌｆ、５ｍｇ／Ｌ、ＩＬ－２２００ｋＵ／Ｌ培养ＰＢＭＮＣ３ｄ,ＥＬＩＳＡ法测定上清液ＩＬ－６、ＩＬ－８、ＩＬ－１２、ＩＦＮ－α及Ｇ－ＣＳＦ水平。结     

IL-1和IL-2对甲状腺细胞分泌甲状腺球蛋白的影响

目的：研究ＩＬ－１和ＩＬ－２对甲腺细胞生成甲状腺球蛋白（Ｔｇ）的调节作用,方法采用Ｇｒａｖｅｓ病（ＧＤ）甲状腺组织,以原代细胞培养及放免分析技术,检测两类细胞因子刺激后Ｔｇ的分泌状况。结果基础状态下,１０＾－３－１０＾３Ｕ／ｍｌ的ＩＬ－１和ＩＬ－２对甲状腺细胞产生Ｔｇ的功能无明显影响;ＩＬ－１剂量依赖性地抑制促甲状腺激素（ＴＳＨ）对甲状腺细胞分泌Ｔｇ的刺激效应,而ＩＬ－２则促进ＴＳＨ诱导下Ｔｇ的产     

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。     

结直肠癌Dukes各期局部免疫功能变化研究

采用ＡｐＡＡＰ法、ＥＬＩＳＡ和ＲＩＡ法检测４５例结直肠癌（ＣＲＣ）患者外周血和局部动静脉血Ｔ细胞亚群（ＣＤ４＾＋／ＣＤ８＾＋）、ｓＩＬ－２Ｒ、ＴＮＦα和ＰＧＥ２，结果发现，局部动静脉血中ＣＤ４＾＋／ＣＤ８＾＋比值随Ｄｕｋｅｓ分期进展而下降；ｓＩＬ－２Ｒ和ＰＧＥ２浓度则随Ｄｕｋｅｓ分期进展而升高，各期差异显著，局部静脉血ＰＧＥ２浓度显著高于局部动脉血；ＴＮＦα水平也随Ｄｕｋｅｓ分期不同而变化，Ｄｕｋ     

细胞因子对再生障碍性贫血患者发病的影响

为探讨ＡＡ的免疫发病机制，阐明细胞因子在ＡＡ患者中变化的基础与临床意义，应用ＥＬＩＳＡ法及ＡＰＡＡＰ法对３８例初治ＡＡ患者及２０名正常人外周血单个核细胞（ＰＢＭＮＣ）培养上清诱生的Ｇ－ＣＳＦ、ＩＬ－６、ＴＮＦα、ＩＦＮα及ＩＬ－８进行检测，同时观察外周血象、Ｔ细胞亚群及ＨＬＡ－ＤＲ表达。结果：ＡＡ患者外周血ＣＤ４减低，ＣＤ８增高，ＣＤ４／ＣＤ８减低或倒置，ＨＬＡ－ＤＲ抗原表达率增高。ＡＡ患者ＰＢＭＮＣ培养上清中Ｇ－ＣＳＦ阳性率减低，ＩＬ－６、ＴＮＦα、ＩＦＮα及ＩＬ－８水平增高。Ｇ－ＣＳＦ与ＣＤ４及ＣＤ４／ＣＤ８呈正相关而与ＩＦＮα呈负相关，ＩＬ－６与白细胞数及ＣＤ４呈负相关，ＴＮＦα与ＣＤ８呈正相关而与ＣＤ４／ＣＤ８呈负相关，ＩＬ－８与ＣＤ８及ＨＬＡ－ＤＲ呈负相关，证明细胞免疫功能异常及细胞因子网络失调在ＡＡ发病中起重要作用，激活的ＣＤ８细胞可以抑制造血，多种因素引起的细胞因子紊乱最终引发ＡＡ。     

IL－1α诱导牛脑微血管内皮细胞释放血小板衍生性生长因子

目的：研究白细胞介素－１α（ＩＬ－１α）诱导牛脑微血管内皮细胞（ＢＣＭＥＣ）释放血小板衍生性生长因子（ＰＤＧＦ），以及药物对由之引起的牛脑微血管平滑肌细胞（ＢＣＭＳＭＣ）增殖的拮抗作用。方法：体外培养ＢＣＭＥＣ和ＢＣＭＳＭＣ，结晶紫染色法测定细胞增殖。结果：ＩＬ－１α不能直接促进ＢＣＭＳＭＣ的增殖；但经ＩＬ－１α刺激的ＢＣＭＥＣ培养上清能显著地促进ＢＣＭＳＭＣ的增殖。这种增殖作用与ＩＬ－１α剂量呈正相关，并且可被抗ＰＤＧＦ抗体中和。欧芹素乙（Ｉｍｐ），异欧芹素乙（ｉｓｏ－Ｉｍｐ），６－（α，α－ｐｈｅｎｙ－ｌａｃｅｔｙｌｐｉｐｅｒａｚｉｎｙｌ）ｐｈｅｎｙｌ－５－ｍｅｔｈｙｌ－４，５－ｄｉｈｙｄｒｏ－３（２Ｈ）－ｐｙｒｉｄａｚｉｎｏｎｅ（ＰＭＤＰ）不影响ＩＬ－１α诱导ＢＣＭＥＣ释放ＰＤＧＦ，但对ＰＤＧＦ促ＢＣＭＳＭＣ增殖呈剂量依赖的拮抗。结论：ＩＬ－１α促进ＢＣＭＥＣ释放ＰＤＧＦ。ＩＬ－１α对ＢＣＭＳＭＣ增殖的促进作用需经ＰＤＧＦ等生长因子的介导。Ｉｍｐ，ｉｓｏ－Ｉｍｐ，ＰＭＤＰ拮抗ＰＤＧＦ引起的ＢＣＭＳＭＣ增殖。     

重组人白介素10对离体大鼠胸主动脉血管平滑肌细胞增殖的影响

目的 观察重组人白介素１０（ｒｈＩＬ－１０）对血管平滑肌细胞（ＶＳＭＣ）增殖的影响。方法 离体培养大鼠胸主动脉 ＶＳＭＣ并分别接受不同浓度ｒｈＩＬ－１０、肿瘤坏死因子（ＴＮＦ－α）、血小板源性生长因子（ＰＤＧＦ－ＢＢ）的刺激,采用ＭＴＳ／ＰＥＳ 法确定ＶＳＭＣ的增殖状态并与对照组比较。结果　与对照组相比,ＴＮＦ－α和ＰＤＧＦ－ＢＢ均对ＶＳＭＣ增殖具有明显的刺 激作用（Ｐ＜０．０５）。单独应用ｒｈＩＬ－１０对血管平滑肌细胞生长没有影响。在ＴＮＦ－α和ＰＤＧＦ－ＢＢ分别刺激下,ｒｈＩＬ－１０均可 抑制ＶＳＭＣ的生长（Ｐ<０．０５）。结论　ｒｈＩＬ－１０可抑制细胞因子和生长因子诱导的ＶＳＭＣ增殖。     

P物质对大鼠脾细胞免疫功能的影响

目的：研究Ｐ物质（ＳＰ）对脾细胞免疫功能的调节作用。方法：采用３Ｈ－ＴｄＲ掺入法、放射免疫测定和流式细胞仪等方法,检测了ＳＰ对体外培养的大鼠脾细胞的增殖和分泌ＩＬ－２、ＩＬ－６、ＴＮＦ功能及Ｔ细胞表型表达的影响。结果：ＳＰ能明显刺激脾细胞的增殖,其中浓度为１×１０－ ４ｍ ｍ ｏｌ／Ｌ时作用最强;ＳＰ能促进Ｔ细胞ＣＤ分子的表达,使ＣＤ４＋ ／ＣＤ８＋ 升高;ＳＰ能显著促进脾细胞分泌ＩＬ－２,对脾细胞分泌ＩＬ－６具有抑制作用,而对分泌ＴＮＦ无作用。结论：证实了ＳＰ是具有广泛的免疫调节作用的一种神经肽。     

HDV阳性重型肝炎患者外周血中TNF,IL—1及IL—6的变化

目的 观察ＨＤＶ（＋）重型肝炎外周血中ＴＮＦ、ＩＬ－１及ＩＬ－６变化状况。方法 分离１６例ＨＤＶ（＋）／ＨＢＶ（＋）重型肝炎血清和ＰＢＭＣ培养上清,ＥＩＡ法则ＴＮＦ,ＩＬ－１参照Ｍｉｚｅｌ法,ＩＬ－６参与ＯｋｕｄａＭｕｒａｇｕｃｈｉ,以２１例ＨＤＶ（－）／ＨＢＶ（＋）重型肝炎为疾病对照,２０例献血员为正常对照。结果 两且重型肝炎患者血浆及ＰＢＭＣ上清中ＴＮＦ、ＩＬ－１及ＩＬ－６均非常显著升高,与献     

小鼠6Gy全身照射后巨噬细胞对造血的抑制效应研究

目的 探讨放射损伤后巨噬细胞血细胞生成的负性调节作用。方法 昆明种雄性小鼠经６Ｇｙ＾６０Ｃｏγ射线一次性全身照射生,检测辐照后１、３、７、１５ｄ腹腔巨噬细胞（ＰＣＭΦ）数量和吞噬墨汁的能力;三ＥＬＩＳＡ和放免法检测巨噬细胞培养上清ＴＧＦ－β１、ＭＩＰ－１α、ＴＮＦα的含量;交示同数量的巨细胞加入骨髓存核细胞中,观察其对ＣＦＵ－Ｅ和ＣＦＵ－ＧＭ形成的影响,骨髓有核细胞剔除了Ｍａｃ－１＾＋细胞及再加入     

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.