HIV感染和AIDS患者T淋巴细胞免疫病理改变的研究

目的　探讨我国HIV感染和AIDS患者T淋巴细胞的免疫病理改变情况及其临床意义。方法　收集 13例HIV感染患者 (HIV组 )、2 7例AIDS患者 (AIDS组 )和 5 1名健康献血员 (正常对照组 )的抗凝血 ,用人T淋巴细胞亚群的特异性荧光抗体标记 ,通过流式细胞仪检测外周血CD4 + T淋巴细胞 (T4细胞 )、CD8+ T淋巴细胞 (T8细胞 )及其亚群 ,并检测患者血浆HIV载量。结果　正常对照组、HIV组和AIDS组外周血T4细胞计数 (× 10 6个 /L)分别为 84 9± 2 88,4 37± 184 ,5 0± 5 1,组间比较P <0 0 1;T8细胞计数 (× 10 6个 /L)分别为 5 79± 175 ,10 31± 345 ,5 35± 338,HIV组明显高于正常对照组(P <0 0 5 ) ;T4纯真细胞 (CD4 + CD4 5RA+ CD6 2L+ )亚群比例分别为 4 3 0 %± 11 4 % ,4 4 2 %± 12 8% ,2 4 8%± 15 5 % ,AIDS组明显为低 (P <0 0 5 ) ;T4纯真细胞计数 (× 10 6个 /L)分别为 36 8± 16 2 ,185±134,18± 2 0 ,组间比较P <0 0 1;T4功能细胞 (CD4 + CD2 8+ )亚群比例分别为 93 1%± 8 1% ,6 2 6 %±2 8 2 % ,5 6 9%± 2 6 4 % ,组间比较P <0 0 1;T4和T8激活细胞 (CD4 + HLA DR+ ,CD8+ HLA DR+ ,CD8+CD38+ )亚群比例均表现为AIDS组 >HIV组 >正常对照组 (P <0 0 5 ) ;T4和T8凋亡细胞 (CD4 +CD95 + ,C     

95例SARS患者T细胞及其亚群动态变化的观察

对 95例SARS患者的T淋巴细胞亚群动态变化进行分析。其中 85例痊愈 ,1 0例死亡。 85例痊愈患者 ,病程第 7天平均CD4 + ( 3 2 5± 1 90 )个 /μL ,CD8+ ( 3 1 9± 3 1 5 )个 /μL ,CD4 + /CD8+ 1 .2 5± 0 .71 ,与我国正常人相比〔平均CD4 + ( 72 7± 2 5 5 )个 /μL、CD8+ ( 5 3 9± 1 3 4)个 /μL ,CD4 + /CD8+ 1 .49〕 ,T淋巴细胞亚群明显下降 (P =0 .0 0 1 )。病程第1 4天左右免疫功能逐渐恢复 ,平均CD4 + ( 5 61± 5 2 2 )个 /μL ,CD8+ ( 3 70± 2 71 )个 /μL ,CD4 + /CD8+ 1 .68± 1 .1 1。 2 1d后免疫功能基本恢复正常 ,平均CD4 + ( 675± 448)个 /μL ,CD8+ ( 4 67± 2 41 )个 /μL ,CD4 + /CD8+ 1 .48± 0 .68。 1 0例死亡患者的T细胞亚群在入院后逐渐出现下降趋势 ,病程第 7天CD4 + ( 2 48± 82 )个 /μL ,CD8+ ( 2 3 3± 1 1 5 )个 /μL ,CD4 + /CD8+ 1 .2 1± 0 .40 ,第 1 4天T淋巴细胞继续下降 ,平均CD4 + ( 1 81± 1 2 8)个 /μL ,CD8+ ( 1 73± 1 0 9)个 /μL ,CD4 + /CD8+ 1 .1 7± 0 .45 ,2 1d后CD4 + 细胞继续下降 ,平均CD4 + ( 1 2 5± 46)个 /μL ,CD8+ ( 94± 3 8)个 /μL ,CD4 + /CD8+ 1 .44±0 .5 9。结果提示 :SARS患者早期可能存在异常的免疫反应 ,这种异常免疫反应可能是导?     

宜宾地区健康新生儿淋巴细胞免疫分型研究

目的 研究宜宾地区健康新生儿的淋巴细胞免疫分型特点,探讨健康新生儿与正常成人之间淋巴细胞免疫分型的差异.方法 选取2015年1月至2016年12月在宜宾市第二人民医院分娩及儿童保健科正常体检的新生儿26例作为新生儿组,随机选取同期本院健康体检者44例作为成人组.采集新生儿足跟血60μL,成年人全血2~3 mL,所有标本均在24 h内用BD FACSCanto II流式细胞仪完成检测.结果 与成人相比,宜宾地区新生儿末梢血CD3+T淋巴细胞百分比[(81.40±6.04)%vs(70.10±5.83)%]、CD3+CD4+CD8-T淋巴细胞百分比[(57.50±8.38)%vs(38.90±4.83)%]及CD3+T淋巴细胞绝对计数[(3407.50±945.57)×106个/μL vs(1429.50±376.44)×106个/μL]、CD3+CD4+CD8-T淋巴细胞绝对计数[(2396.00±671.27)×106个/μL vs(791.70±237.18)×106个/μL]、CD3-CD19+B淋巴细胞绝对计数[(407.60±281.40)×106个/μL vs(249.50±92.46)×106个/μL]、CD3+CD4-CD8+T淋巴细胞绝对计数[(980.40±396.68)×106个/μL vs(531.70±155.51)×106个/μL]显著增高,差异均有统计学意义(P<0.05),而CD3+CD4-CD8+T淋巴细胞百分比[(23.20±6.64)%vs(26.20±4.27)%]、CD3-CD16+CD56+NK细胞百分比[(6.00±2.91)%vs(16.50±5.64)%]及CD3-CD16+CD56+NK细胞绝对计数[(252.90±151.38)×106个/μL vs(325.80±129.25)×106个/μL]显著降低,差异也均有统计学意义(P<0.05);新生儿末梢血CD3-CD19+B淋巴细胞百分比与成人组之间比较差异无统计学意义(P>0.05).结论 宜宾地区健康新生儿末梢血淋巴细胞免疫分型与正常成年人之间存在差异,呈现了淋巴细胞随着人类的生长发育而表现出的不同特点.     

尖锐湿疣患者HPV感染类型与细胞免疫功能关系的研究

目的　探讨尖锐湿疣 (CA)患者组织中HPV感染的类型与细胞免疫功能的关系。方法　采用PCR技术检测组织中HPVDNA ,流式细胞仪检测外周血T细胞亚群 ,ELISA法检测血清中细胞因子。结果　CA患者组织中HPV阳性率为 96 2 0 % ,假性湿疣 (PCV)患者组织中HPV阳性率为 5 0 0 %。CA组外周血CD3+ T细胞、CD4 +T细胞、CD4 + /CD8+ T细胞分别为 (5 1 2 3± 5 5 1) %、(2 3 5 2± 4 90 ) %、0 90± 0 84均低于PCV组 (6 0 31±9 4 6 ) %、(35 13± 5 94 ) %、1 5 5± 0 77和正常体检对照组 (6 1 0 1± 9 2 1) %、(36 4 6± 6 0 4 ) %、1 5 9± 0 78(均P<0 0 1) ;CA组外周血CD8+ T细胞为 (2 5 98± 5 78) %均高于PCV组 (2 2 6 7± 2 94 ) %和正常体检对照组 (2 2 86± 3 0 1) % (均P <0 0 5 ) ;CA组血清中IL - 12产生水平为 (6 1 38± 5 38) %均低于PCV组 (82 0 3± 9 0 1) %和正常体检对照组 (81 75± 10 18) % (均P <0 0 5 ) ;不同型别HPV感染的CA患者之间外周血CD3+ 、CD4 + 、CD8+ 、CD4 + /CD8+ 和血清中IL - 12产生水平无差异 (P >0 0 5 )。结论　CA患者存在细胞免疫缺陷 ,不同型别HPV感染的CA患者之间细胞免疫功能无差异     

小剂量混合雌激素对冠心病人血浆同型半胱氨酸水平的影响

目的　研究小剂量混合雌激素对冠心病人血浆同型半胱氨酸水平及脂代谢的影响。方法　 4 5例绝经后女性冠心病人 ,平均年龄 5 8 0 6± 5 2 8岁 ,每日口服混合雌激素 0 6 2 5mg共 6周。服药前后分别取空腹静脉血查血浆同型半胱氨酸、氧化型低密度脂蛋白、17β 雌二醇浓度及血脂分析。 结果　服药 6周后 ,血浆同型半胱氨酸浓度降低 14 39% [(2 2 17±14 72 )× 10 -6mol/L比 (18 98± 17 6 0 )× 10 -6mol/L ,p <0 0 5 ]、高密度脂蛋白胆固醇增高 18 37% [(0 98± 0 31)× 10 -3 mol/L比(1 16± 0 33)× 10 -3 mol/L ,P <0 0 1]、低密度脂蛋白胆固醇降低 7 83% [(3 83± 0 84 )× 10 -3 mol/L比 (3 5 3± 0 79)× 10 -3 mol/L ,p <0 0 5 ]、氧化型低密度脂蛋白降低 2 2 4 9% [(6 7 19± 17 2 8)× 10 -5g/L比 (5 2 0 8± 17 72 )× 10 -5g/L ,P =0 0 0 0 ],无严重副作用发生。结论　口服小剂量混合雌激素可降低冠心病人的血浆同型半胱氨酸浓度、改善血脂代谢状况、抑制低密度脂蛋白的氧化修饰     

T细胞共刺激分子及其亚群在胃癌和大肠癌组织中表达的意义

目的 探讨和分析T细胞共刺激分子及其亚群在胃癌和大肠癌组织中表达的意义.方法 该次研究选择该院于2014年9月—2016年10月期间收治的41例胃癌患者和39例大肠癌患者作为研究主体,胃癌患者为甲组,大肠癌患者为乙组,选择同期进行检测的33名健康人作为丙组.对入院的人群通过流式细胞术进行检测,对比3组T细胞共刺激分子及其亚群的检测结果.结果 甲乙两组T细胞共刺激分子CD28+CD3+水平[(25.81±10.55)、(28.94±9.28)%]高于丙组[(0.81±0.97)%],甲乙两组T细胞CD3+水平[(53.62±13.83)、(55.95±10.67)%]低于丙组[(72.06±7.82)%],甲乙两组T细胞CD4+CD3+水平[(29.83±9.72)、(33.74±9.03)%]低于丙组[(38.78±5.07)%],甲乙两组T细胞CD8+CD28+CD3+水平[(1.58±1.98)、(1.92±2.62)%]高于丙组[(0.04±0.03)%],甲组T细胞CD8+CD28-CD3+[(16.07±6.95%)]以及CD4/CD8水平[(1.15±0.54)%]低于丙组[(20.55±6.55)、(1.35±0.32)%],乙组T细胞CD4+CD25+CD3+水平[(19.75±6.88)%]高于丙组[(13.71±3.07)%],差异有统计学意义(P<0.05).甲乙两组术前术后除CD3+和CD28+CD3-之外的T细胞亚群差异无统计学意义(P>0.05).结论 大肠癌患者以及胃癌患者的T细胞数量显著减少,而T细胞共刺激分子(CD28)的表达增高,在胃癌患者中CD4+T细胞数量明显减少,而在大肠癌患者中调节性T细胞数量明显增加.     

严重急性呼吸综合征死亡原因分析

为分析导致SARS患者死亡的危险因素 ,对 2 0 0 3年 3月至 6月在佑安医院死亡的 1 5例SARS患者的死亡原因进行分析。结果 :1 5例患者年龄 2 3～ 81岁 ,平均 ( 5 0 .7± 1 8.8)岁 ,其中年龄大于 5 0岁的 7例。基础病 :合并糖尿病 5例 ,高血压病 5例 ,慢性肾功能不全、尿毒症期 2例。T细胞亚群 :病程第 1周CD4 + T淋巴细胞明显降低 ,平均CD4 + ( 2 48± 82 )个 /μL ,第 2和第 3周继续下降 ,分别为 ( 1 81± 1 2 8)个 /μL和 ( 1 2 5± 46)个 /μL ,与痊愈组患者比较差异具有显著性 (P <0 .0 5 )。胸部影像学变化 :1 5例中 7例患者胸部影像学显示均在 7d内进展到双肺广泛磨玻璃样变或实变。CK及CK MB :平均CK( 2 69.3± 3 99.9)U/L ,CK MB( 3 1 .1± 2 6.1 )U/L。提示 :SARS患者若伴有高龄、多合并症、T细胞亚群进行性下降、快速进展的双肺广泛实变、CK及CKMB升高等情况时 ,预后极差     

艾滋病合并乙型肝炎患者病毒载量与细胞免疫功能的相关性

目的 探讨艾滋病合并乙型肝炎患者病毒载量与细胞免疫功能的相关性.方法 对2013年2月至2016年2月聊城市中医医院收治的83例艾滋病患者临床资料进行回顾性分析,按照合并或未合并乙型肝炎将其分为观察组38例及对照组45例,比较两组患者生化指标、血常规、病毒学指标,并对T淋巴细胞亚群进行计数,采用Pearson相关分析,分析病毒载量与细胞免疫功能的相关性.结果 观察组谷丙转氨酶(ALT)、谷草转氨酶(AST)、总胆红素(TBIL)分别为(65.43±23.91)U/L、(72.93±33.87)U/L及(16.38±5.51)μmol/L,高于对照组的(32.72±22.15)U/L、(34.53±18.62)U/L以及(11.80±3.17)μmol/L;观察组白蛋白(ALB)为(38.31±6.40)g/L,低于对照组的(42.91±8.02)g/L;观察组患者血小板计数为(160.74±48.60)×109/L,低于对照组(200.85±58.38)×109/L;观察组患者HIV RNA病毒载量为(6.21±1.10)log10 copie/mL,高于对照组(4.26±0.79)log10 copie/mL;上述差异均有统计学意义(P<0.05).观察组患者CD3+、CD4+及CD8+细胞个数及CD4+/CD8+均低于对照组,差异有统计学意义(P<0.05).HIV RNA载量与HBV DNA载量呈正相关(P<0.05);CD4+T细胞及CD4+/CD8+与HBV DNA载量以及HIV RNA载量呈负相关(P<0.05);CD3+T细胞及CD8+T细胞与HBV DNA载量以及HIV RNA载量无显著相关性(P>0.05).结论 HIV/HBV合并感染时,两种病毒可能具有相互促进作用,加重患者肝损伤及免疫缺陷.     

急性脑卒中患者血浆胰岛素样生长因子1与胰岛素抵抗的关系

目的　探讨急性脑卒中患者血浆胰岛素样生长因子 1(IGF 1)及其结合蛋白 3(IGFBP3)水平的变化 ,及两者与胰岛素抵抗 (IR)有关的血浆胰岛素 (FINS)水平及其敏感性系数 (ISI)的相关性。方法　应用放射免疫法检测了 4 0例急性脑出血 (ACH)患者、34例脑梗死 (ACI)患者、脑卒中恢复期组30例和正常对照组 30名的血浆IGF 1、IGFBP3、FINS水平 ,同时测定空腹血糖 (GS)水平。结果　 (1)ACI和ACH组血浆IGF 1、IGFBP3、ISI显著低于正常对照组和脑卒中恢复期组 (分别为ACI:17 3mmol/L± 7 0mmol/L ,72 9mmol/L± 11 4mmol/L ,- 4 2± 0 3;ACH :14 4mmol/L± 5 8mmol/L ,5 7 8mmol/L± 17 2mmol/L ,- 4 7± 0 6 ,恢复期组 :2 8 8mmol/L± 13 6mmol/L ,87 4mmol/L± 18 3mmol/L ,- 3 9±0 4 ;正常对照组 :31 5mmol/L± 18 9mmol/L ,93 1mmol/L± 2 8 0mmol/L ,- 3 6± 0 3;F分别为 18 3,2 0 2 ,17 2 ,P <0 0 1;GS、FINS显著高于正常对照组 (ACI组 :6 1mmol/L± 1 0mmol/L ,15 7mIU/L±3 1mIU/L ;ACH组 :6 4mmol/L± 2 1mmol/L ,19 7mIU/L± 9 6mIU/L ;正常对照组 :4 8mmol/L± 0 5mmol/L ,10 6mIU/L± 3 2mIU/L ;F分别为 8 5 ,10 6 ;P <0 0 1) ;(2 )ACI组和ACH组血浆IGF 1与IGFBP3水平呈正相关 (P     

硬肝复康对小鼠四氯化碳肝损伤和肝硬化的作用

目的 :研究纯中药制剂硬肝复康对四氯化碳 (CCl4 )所致急性肝损伤和肝硬化的防治作用。方法 :将CCl4 单次或多次给予实验小白鼠 ,分别造成急性肝损伤或肝硬化 ;防治组灌胃给予硬肝复康 ,并检测各组血清中的肝脏相关酶和蛋白等指标。结果 :急性肝损伤时 ,硬肝复康 2 g/kg× 3d组血清谷丙转氨酶(ALT)和碱性磷酸酶 (ALP) ( 6153U/L± 34 91U/L和 2 0 2U /L± 2 5U/L)较对照组明显降低 ,而总蛋白(TP ,53.2 g/L± 1.9g/L)明显升高 (P <0 .0 5) ;肝硬化实验中 ,硬肝复康 2g/kg× 17d组血清ALT和ALP( 110 0± 34 2U/L和 166± 54U/L)显著低于对照组 ( 1638U/L± 336U /L和 32 8U/L± 12 8U /L) (P <0 .0 1) ,其肝、脾指数 ( 67.2± 5.2、5.0 7± 1.0 5)也明显低于对照组 ( 71.8± 4 .2、6.65± 1.81) (P <0 .0 5) ,但TP和白蛋白 (Alb) ( 68.7± 4 .8和 31.1± 2 .4 g/L)则明显高于对照组 ( 58.9g/L± 9.4 g/L和 2 9.2 g/L± 1.3g/L) (P <0 .0 5)。结论 :硬肝复康对小鼠CCl4 所致急性肝损伤和肝硬化有一定防治作用     

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.