Src酪氨酸激酶抑制剂Ⅱ对膀胱移行细胞癌T24细胞生长、增殖的影响

目的 探讨Src酪氨酸激酶抑制剂Ⅱ对Src蛋白及其下游信号作用。方法 采用半定量RT—PCR法检测Src酪氨酸激酶抑制剂Ⅱ处理后的人膀胱癌细胞T24各浓度组（0、0．2、1．0、5．0μmol／mL组）的c—Src、p38MAPK基因表达的变化情况,使用Western blot检测Src酪氨酸激酶抑制剂Ⅱ处理后T24细胞内的c—Src蛋白磷酸化类型与非磷酸化类型的表达情况。结果 Src酪氨酸激酶抑制剂Ⅱ处理有下调后的人膀胱癌细胞T24各浓度组的c—SrcmRNA的表达下调;p38基因的表达呈逐渐下调趋势。处理后T24细胞内c—Src基因在蛋白表达水平上其磷酸化类型随Src酪氨酸激酶抑制剂Ⅱ浓度的增高表达逐渐下降,并且呈剂量效应关系。结论 Src酪氨酸激酶抑制剂Ⅱ可能通过竞争Src蛋白磷酸化位点,使其不能激活,导致下游的细胞传导途径失活使得T24细胞增殖得到抑制,认为Src蛋白具有作为膀胱移行细胞癌分子靶向治疗的潜在靶点的可能性。Src酪氨酸激酶抑制剂Ⅱ可能可以通过阻止Src蛋白激活影响其下游的Ras／Raf／MEK／MAPK（ERK1／2或p38）通路和ERK1／2和p38细胞信号传导通路,下调p38表达不仅直接和间接地诱导T24细胞凋亡,而且可以阻止或减少T24细胞的迁移、扩散和穿膜侵袭的发生。     

负向调控p21对骨肉瘤细胞增殖和凋亡的影响

探讨AU 结合因子1（AUF1）调控p21对骨肉瘤细胞增殖和凋亡的影响及机制。方法 采用qRT-PCR和Western blot分别检测AUF1在骨肉瘤组织mRNA和蛋白表达水平。在骨肉瘤U2OS和HOS细胞中分别转染sh-NC和sh-AUF1后,CCK8检测细胞增殖情况;qRT-PCR检测增殖相关分子PCNA的表达水平;流式细胞术检测细胞凋亡情况;Western blot检测凋亡相关分子Cleaved-caspase-3的表达水平。RNA结合蛋白免疫沉淀实验和RNA半衰期实验检测AUF1调控p21的机制。结果 AUF1 mRNA和蛋白的表达水平在骨肉瘤组织中明显高于癌旁正常组织（P＜0.05）,AUF1 mRNA的表达水平在骨肉瘤伴转移的患者中明显高于骨肉瘤不伴转移的患者（P＜0.05）。在U2OS和HOS细胞中分别转染sh-NC和sh-AUF1,AUF1 mRNA和蛋白的表达水平在转染sh-AUF1组较sh-NC组明显下降（P＜0.05）。低表达AUF1能够明显抑制U2OS和HOS细胞的增殖和增殖相关分子PCNA的表达（P＜0.05）,促进细胞凋亡和凋亡相关分子Cleaved-caspase-3的表达（P＜0.05）。低表达AUF1能够明显促进U2OS和HOS细胞中p21 mRNA和蛋白的表达水平（P＜0.05）。AUF1蛋白能够与p21 mRNA结合,同时低表达AUF1能够明显抑制p21 mRNA的降解速度（P＜0.05）。结论 AUF1在骨肉瘤组织和细胞中明显高表达,低表达AUF1能够抑制p21 mRNA 降解,增加p21蛋白的表达,进而抑制骨肉瘤细胞增殖和促进细胞凋亡     

利多卡因调控miR 15a 5p对肝癌细胞生物学功能的影响及其机制

【摘要】目的 探讨利多卡因对肝癌细胞凋亡、迁移和侵袭的影响及其机制。 方法 使用不同浓度利多卡因作用于肝癌细胞HepG2,正常培养的HepG2细胞为对照组。流式细胞术检测细胞凋亡,蛋白质印迹法（Western blot）检测B细胞淋巴瘤/白血病 2（Bcl 2）、Bcl 2相关X蛋白（Bax）、E 钙黏蛋白（E cadherin）、基质金属蛋白酶 2（MMP 2）蛋白表〖JP2〗达,Transwell小室法检测细胞迁移和侵袭,qPCR检测细胞中miR 15a 5p表达。在细胞中转染miR 15a 5p、anti miR 15a 5p〖JP〗及各自阴性对照的转染并使用01 mmol/L利多卡因处理细胞,观察其对HepG2细胞凋亡、迁移、侵袭的影响。 结果 与对照组相比,001、01和1 mmol/L利多卡因增加细胞凋亡率和Bax蛋白表达量（P＜005）,降低Bcl 2蛋白水平（P＜005）。01 mmol/L利多卡因明显降低迁移细胞数、侵袭细胞数和MMP 2蛋白表达量（P＜005）,升高E cadherin蛋白水平和miR 15a 5p表达量（P＜005）。过表达miR 15a 5p增加细胞凋亡率、Bax和E cadherin蛋白表达量（P＜005）,减少迁移细胞数、侵袭细胞数、Bcl 2和MMP 2蛋白表达量（P＜005）。 结论 利多卡因通过调控miR 15a 5p表达抑制肝癌细胞迁移和侵袭,并诱导细胞凋亡。     

片仔癀通过PI3K/Akt信号通路诱导人骨肉瘤U2OS细胞凋亡

目的探讨片仔癀诱导骨肉瘤U2OS细胞凋亡与磷脂酰肌醇3-激酶/蛋白激酶B（PI3K/Akt）途径的关系。方法采用不同浓度片仔癀（0.4，0.8，1.2mg/mL）作用U2OS细胞，采用MTT法检测片仔癀对U2OS细胞增殖的影响；Hoechst 333258染色观察细胞凋亡情况；Western blot检测PI3K调节亚基p85α（PI3K p85α）、磷酸化PI3K调节亚基p85α（p-PI3K p85α）、蛋白激酶B（Akt）、磷酸化Akt（p-Akt）、核多聚（ADP-核酶）聚合酶（PARP）、裂解PARP（Cleaved PARP）等PI3K/Akt途径相关蛋白的表达。结果片仔癀可明显抑制U2OS细胞的增殖，呈时间和浓度依赖性，诱导U2OS细胞凋亡；Western blot显示p-PI3K p85α、p-Akt蛋白表达明显下调，Cleaved PARP表达量增加，与空白对照组相比有明显差异（P<0.05）。结论片仔癀可通过抑制PI3K/Akt信号途径PI3K p85α、Akt磷酸化，促进PARP裂解，诱导骨肉瘤U2OS凋亡。     

lncRNA CASC19靶向miR-490-3p调控骨肉瘤细胞增殖、迁移和侵袭的分子机制

【摘要】 目的 探讨lncRNA CASC19对骨肉瘤细胞的增殖、迁移和侵袭的影响以及潜在的作用机制。 方法 实验设置si con组、si CASC19组、pcDNA组、pcDNA CASC19组、miR con组、miR 490 3p组、si CASC19+anti miR con组、si CASC19+anti miR 490 3p组;qRT PCR检测miR 490 3p和CASC19的表达水平;Western blot检测蛋白表达;MTT法检测细胞活性;Transwell检测各组细胞迁移和侵袭;双荧光素酶报告基因检测实验检测荧光活性。 结果 骨肉瘤细胞MG63、U2 OS、OS187中miR 490 3p低表达,CASC19高表达（P＜005）;过表达miR 490 3p或干扰CASC19表达可抑制骨肉瘤细胞MG63增殖、迁移和侵袭。CASC19靶向调控miR 490 3p的表达,抑制miR 490 3p表达能逆转干扰CASC19对骨肉瘤细胞MG63增殖、迁移、侵袭的抑制作用。 结论 lncRNA CASC19可抑制骨肉瘤细胞的增殖、迁移和侵袭,其机制可能与靶向调控miR 490 3p有关,将可为骨肉瘤的预防和治疗提供新靶点。     

布比卡因介导PI3K/AKT/mTOR通路诱导结肠癌SW480细胞自噬和凋亡及抑制裸鼠移植瘤的形成

【摘要】目的 探究布比卡因介导PI3K/AKT/mTOR通路诱导结肠癌SW480细胞自噬和凋亡的机制及其对裸鼠移植瘤形成的抑制作用。方法 结肠癌SW480细胞分为对照组、布比卡因组（025、05、1 mM）。各组细胞处理24h后采用Edu染色检测细胞增殖;流式细胞术检测细胞凋亡;Western blot检测增殖、凋亡、自噬及信号通路相关蛋白表达。建立结肠癌裸鼠模型,随机分为布比卡因组（5、10、20 mg）及对照组,分别腹腔注射5、10、20 mg/kg的布比卡因及等体积生理盐水,1次/d,连续治疗30d后处死小鼠,取瘤、称重,免疫组化检测肿瘤组织Ki67蛋白阳性表达,并绘制各组裸鼠生存曲线。〖HT结果 随着布比卡因浓度增加,SW480细胞增殖数及增殖相关蛋白Ki67、PCNA表达量逐渐降低（F=94068、160905、49255,P＜005）,且均低于对照组（P＜005）;SW480细胞凋亡数及凋亡相关蛋白Caspase 3、Caspase 9表达量逐渐升高（F=30948、110730、233550,P＜005）,且均高于对照组（P＜005）。随着布比卡因浓度增加,SW480细胞Beclin1、ATG8蛋白相对表达量,LC3Ⅱ/LC3Ⅰ比值及LC3阳性数均逐渐升高（F=65287、112337、50602、26690,P＜005）,且高于对照组（P＜005）;p62蛋白相对表达量及p PI3K/PI3K、p AKT/AKT、p mTOR/mTOR比值逐渐降低（F=33276、98246、102488、58051,P＜005）,且均低于对照组（P＜005）。给药30d后,布比卡因给药组裸鼠肿瘤质量、Ki67阳性细胞占比及30d生存率均低于对照组（P＜005）。结论 布比卡因可抑制结肠癌SW480细胞增殖,诱导其发生自噬及凋亡,并抑制裸鼠移植瘤的形成,其作用机制可能与抑制PI3K/AKT/mTOR通路有关。     

全氟化碳对脂多糖诱导肺泡上皮细胞炎性反应及单免疫球蛋白白介素1相关蛋白表达的影响

【摘要】 目的 探讨全氟化碳（PFC）对脂多糖（LPS）诱导人肺泡上皮A549细胞炎性反应及单免疫球蛋白白介素 1受体相关蛋白（SIGIRR）表达的影响。方法 实验分为正常细胞组、全氟化碳+脂多糖（PFC+LPS）组、全氟化碳（PFC）组及脂多糖（LPS）组。各组细胞经相应处理24 h后,用酶联免疫吸附法（ELISA）检测培养上清中的TNF α、IL 6和IL 10含量,用蛋白免疫印迹法（Western blot）检测核转录因子 κB （NF κB）和SIGIRR的表达。结果 ELISA结果显示,LPS组TNF α、IL 6水平较正常细胞组升高（P＜005）;PFC+LPS组TNF α、IL 6水平较LPS组下降（P＜005）;与正常细胞组相比,PFC组IL 10水平升高（P＜005）,PFC+LPS组IL 10水平较LPS组升高（P＜005）。Western blot 结果显示,与正常细胞组相比,LPS组核内磷酸化NF κB p65表达上调（P＜005）,PFC+LPS组核内磷酸化NF κB p65表达水平较LPS组降低（P＜005）;与正常细胞组相比,LPS组SIGIRR表达水平下调（P＜005）,PFC+LPS组SIGIRR表达水平较LPS组上调（P＜005）。PFC本身对TNF α、IL 6含量及NF κB p65表达无影响,但PFC可促进A549细胞释放IL 10及上调SIGIRR表达（P＜005）。结论 PFC可减轻A549细胞对LPS诱导的炎性反应,促进抗炎因子IL 10分泌及上调负调控分子SIGIRR表达是可能的分子机制。     

丙泊酚激活线粒体凋亡通路诱导乳头状甲状腺癌TPC 1细胞凋亡和生长阻滞

【摘要】目的 探讨丙泊酚（PPF）通过线粒体凋亡通路对乳头状甲状腺癌TPC 1细胞凋亡和生长的影响。方法 分别采用0、12.5、25、50 μM丙泊酚处理TPC 1细胞,将细胞随机分为PPF 0 μM组、PPF 12.5 μM组、PPF 25 μM组和PPF 50 μM组进行后续实验。BrdU染色检测细胞增殖;克隆形成法检测细胞生长;流式细胞仪检测细胞凋亡;流式分选检测线粒体膜电位;蛋白免疫印迹检测Ki67、PCNA、Bcl 2、Bax、Caspase 3、Caspase 9、c Myc蛋白表达水平;试剂盒检测SOD、MDA、GSH含量。结果 与PPF 0μM组相比较,PPF 25 μM组和PDF 50 μM组BrdU阳性细胞数显著降低（P＜005）,克隆形成率显著降低（P＜005）,Ki67、PCNA蛋白水平显著降低（P＜005）,细胞凋亡率显著升高（P＜005）,细胞线粒体膜电位明显降低,Bax/Bcl 2、cleaved caspase 3/Caspase 3、cleaved caspase 9/Caspase 9比值显著升高（P＜005）,c Myc蛋白水平显著降低（P＜005）,SOD含量显著降低（P＜005）,MDA、GSH含量显著升高（P＜005）。结论 丙泊酚激活线粒体凋亡通路诱导乳头状甲状腺癌TPC 1细胞凋亡和生长阻滞。     

p38δ对宫颈癌HeLa细胞顺铂敏感性的影响

【摘要】 目的 探讨p38δ对HeLa细胞顺铂敏感性的影响。方法 采用细胞转染方法在HeLa细胞中过表达p38δ蛋白;采用Annexin V FITC/PI双染色检测细胞凋亡水平;采用蛋白质印迹法检测蛋白表达水平;采用免疫沉淀法纯化p38δ蛋白,并采用蛋白质印迹法检测其磷酸化水平。结果 与转染对照质粒HeLa细胞相比,转染p38δ表达质粒HeLa细胞在正常培养条件下和顺铂处理条件下的细胞凋亡水平都显著上升（P均＜001）。在顺铂处理条件下,与转染对照质粒HeLa细胞相比,转染p38δ表达质粒HeLa细胞Bcl 2蛋白表达水平下降,Bax和p53蛋白表达水平上升（P均＜001）。顺铂处理HeLa细胞中p38δ磷酸化水平显著上升（P＜001）。与转染野生型p38δ（WT）HeLa细胞相比,转染激酶失活突变体p38δ（K54R）HeLa细胞在正常培养条件下和顺铂处理条件下的细胞凋亡水平都显著下降（P均＜001）。结论 p38δ促进HeLa细胞凋亡并增强其对顺铂的敏感性,且p38δ对HeLa细胞凋亡的调控依赖于其蛋白激酶活性。     

Src激酶抑制剂-1对人软骨肉瘤细胞生物学行为的影响

目的探讨Src激酶抑制剂-1对人软骨肉瘤SWl353细胞生长、凋亡和迁移等生物学行为的影响及其机制。方法体外培养人软骨肉瘤SWl353细胞，分为对照组和实验组，分别采用MTT法、流式细胞术和细胞迁移实验观察Src激酶抑制剂-1对人软骨肉瘤SWl353细胞生长、凋亡和迁移等生物学行为的影响，并通过Western—blot检测Src激酶抑制剂-1作用后Src及下游信号通路蛋白的影响。结果0．5、1、5、10μmol／L的Src激酶抑制剂-1均能明显抑制SWl353细胞的增殖（P〈0．01）；1、5、10μmol／L的Src激酶抑制剂-1均能明显促进SWl353细胞的凋亡（P〈0．01）；Sre激酶抑制剂-1能明显限制SWl353细胞的迁移；Sre激酶抑制剂-1能明显抑制SWl353细胞Src（Tyr416）及下游信号ERK，bAkt和FAK（F397）的磷酸化。结论Src激酶抑制剂-1具有抑制人软骨肉瘤SWl353细胞生长和迁移的能力，可能对软骨肉瘤具有一定的治疗效果，这是通过直接抑制Src酪氨酸激酶的活性，进而抑制其下游信号通路的激活来实现的。     

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.