参附注射液治疗不稳定性心绞痛的疗效观察

目的　观察参附注射液 (GMPS)治疗冠心病不稳定性心绞痛的疗效 .方法　采用 GMPS随机对 30例冠心病不稳定性心绞痛患者 2 wk治疗 ,另设 30例冠心病不稳定性心绞痛患者为对照组 .对治疗前后患者甲襞微循环等指标进行测定 ,并观察症状及生命体征 .结果　与对照组相比 ,GMPS能更明显地增加不稳定性心绞痛患者甲襞微循环的管襻密度[(7.0± 1.1)条· mm- 2 vs (6 .0± 1.0 )条· mm- 2 ,P<0 .0 1]、管襻直径 [输入枝 (4 .5± 0 .6 ) μm vs(3.8± 0 .5 ) μm,输出枝 (6 .8± 0 .8)μm vs (5 .9± 0 .7)μm,P<0 .0 1]、管襻长度[(2 36± 5 1) μm vs(16 2± 6 2 ) μm,P<0 .0 1]和血流速度[(10 10± 2 2 1)μm· s- 1 vs (789± 195 )μm· s- 1 ,P<0 .0 1],减少交错 [(1.6± 0 .6 )条· m m- 2 vs(2 .0± 0 .4)条· mm- 2 ,P<0 .0 1]和畸形 [(0 .3± 0 .1)条· mm- 2 vs (0 .5± 0 .1)条·mm- 2 ,P<0 .0 1]的管襻数 ,更明显改善红细胞的聚集性 (治疗后轻度及正常为 16 / 30 vs8/ 30 ,P<0 .0 5 ) .结论　 GMPS可能通过改善患者的微循环而起到对不稳定性心绞痛的治疗作用     

丹参对大鼠心肌缺血再灌注损伤后血浆一氧化氮和心肌c-fos mRNA表达的作用

目的　探讨丹参 (SM)对大鼠心肌缺血再灌注损伤 (IRI)后血浆一氧化氮 (NO)和心肌c fosmRNA表达等的作用。方法　采用结扎左冠状动脉前降支 30min ,再灌注复制大鼠心肌IRI的模型 ,结扎前 10min注射丹参 ,检测心肌再灌注 4 0min时血浆NO、内皮素 (ET)的含量和心肌组织乳酸脱氢酶 (LDH)、磷酸肌酸激酶 (CK) ,并用原位杂交方法观测左室心肌c fosmRNA的表达。结果　SM组 ( 4 g/kg)较IRI组 ,能显著减少心肌酶的漏出 [LDH :( 10 92± 5 7)U/Lvs ( 1977± 6 4 )U/L ;CK :( 185± 6 )U/Lvs ( 2 0 6± 4 )U/L ,(均为P <0 0 1) ];明显提高血浆NO含量 [( 5 8 3± 4 2 ) μmol/Lvs ( 2 1 8± 2 7) μmol/L ,(P <0 0 1) ],减少ET的生成 [( 2 2 8± 10 ) pg/mlvs ( 313± 13) pg/ml,(P <0 0 1) ],血浆NO与ET比值也明显升高 [( 0 30± 0 0 2 )vs ( 0 0 7± 0 0 1) ,(P <0 0 1) ];IRI组心肌组织c fosmRNA表达的光密度值为 0 2 1± 0 0 3,而SM组光密度值为 0 12± 0 0 3,c fosmRNA的表达明显减少(P <0 0 5 )。结论　SM对心肌的保护作用机制之一与提高血浆NO含量、减少ET的生成 ,下调c fosmRNA表达有关     

充血性心衰大鼠严格限钠后肾素-血管紧张素系统的变化

目的　观察充血性心衰大鼠严格限钠后循环与局部肾素 -血管紧张素系统 (RAS)的变化 .方法　将充血性心衰大鼠随机分为 3组 :心衰组、心衰限钠组、心衰补钠组 ,假手术大鼠为对照组 ,用放射免疫分析法和原位杂交技术分别测定各组血浆和心肌血管紧张素 (Ang ) ,醛固酮 (Ald)含量及心肌血管紧张素原 m RNA表达水平 .结果　心衰限钠组血浆 Ang ,Ald含量 [(2 2 5± 2 0 ) ng· L- 1 和 (4 76± 6 2 )μg·L- 1 ]及心肌 Ang 含量 [心房 (2 0 .1± 4.5 ) ng· g- 1 ,心室(2 7.3± 5 .9) ng· g- 1 ]显著高于心衰组 [(180± 2 9) ng· L- 1 ,(2 48± 5 8) μg· L- 1 及 (17.5± 3.6 ) ng· g- 1 ,(2 0 .1± 3.7)ng· g- 1 ](P<0 .0 5 ,P<0 .0 1) ,心室肌 Ang原 m RNA表达水平 (12 .6± 2 .3)也显著高于心衰组 (8.6± 1.7) (P<0 .0 5 ) ,血钠较心衰组下降 5 % (P<0 .0 5 ) ;心衰补钠组心肌血管紧张素原 m RNA表达水平与心衰组无显著差别 ,其余指标与对照组无显著差别 .结论　心衰后限钠进一步激活循环和局部RAS,加重钠水潴留     

曲美他嗪对家兔心肌缺血再灌注损伤的保护作用

目的 :探讨曲美他嗪对家兔心肌缺血再灌注损伤的保护作用。方法 :家兔 4 0只 ,随机分为正常对照组、缺血对照组、缺血药物干预组、再灌注对照组、再灌注药物干预组。观察缺血 30 min和再灌注 30 min对血清肌酸磷酸激酶 (CPK)、丙二醛 (MDA)、超氧化物歧化酶 (SOD)的影响 ,心肌三磷酸腺苷 (ATP)含量 ,以及心肌电镜学改变。结果 :1缺血药物干预组与缺血对照组比较 ,除血清 MDA差异有显著性外 [(4 .0 9± 0 .4 0 vs4 .79± 0 .92 ) nmol/ ml,P<0 .0 1],血清 CPK[(132 2± 114 8vs14 98± 190 ) NU/ ml]、SOD[(32 4± 71vs2 88± 5 4) NU/ ml]差异均无显著性(P>0 .0 5 )。 2再灌注药物干预组与再灌注对照组比较 ,血清 CPK[(15 12± 2 2 6 vs190 4± 2 0 3) NU/ ml]、MDA[(6 .0 9± 0 .6 9vs7.4 3± 0 .2 0 ) nmol/ ml]、SOD[(2 13± 71vs119± 5 5 ) NU/ ml],及缺血区心肌 ATP含量 [(1.4 0 1± 0 .2 4 8vs0 .6 2 9± 0 .175 ) μmol/ g]差异均有显著性 (P<0 .0 0 1～ 0 .0 1)。 3电镜显示 :各药物干预组线粒体结构改变分别较各对照组减轻。结论 :曲美他嗪具有改善缺血再灌注损伤心肌线粒体的代谢和清除氧自由基的功能。     

电针调控大鼠胃酸分泌的机制

目的　探讨电针足三里穴对大鼠胃酸分泌的调控机制 .方法　 75只 SD大鼠随机分为 5组 ,在清醒状态下针刺双侧足三里穴 ,以空白对照、非经非穴作对照 ,三阴交穴作经穴对照 .同步测定胃液量、p H值及胃液酸度 ,放免法测定血浆、胃液、胃粘膜胃泌素 (Gas)和表皮生长因子 (EGF)含量 ,透射电镜观察胃粘膜腺细胞超微结构 .结果　电针刺激足三里穴后大鼠空腹胃液量明显减少 [(0 .30± 0 .11) vs(0 .6 3± 0 .12 )m L,P<0 .0 1],胃液酸度明显降低 [(30± 3) vs(4 1± 1)mmol· L- 1 ,P<0 .0 5 ],胃液 p H升高 .胃粘膜 Gas含量增多[(136± 17) vs(73± 4) ng· L- 1 ,P<0 .0 1],血浆 Gas含量下降 [(84± 2 2 ) vs (10 8± 30 ) ng· g- 1 ,P<0 .0 1],胃液 Gas无变化 ;胃液及胃粘膜 EGF含量显著升高 [(3.2± 1.1) vs(1.8± 0 .4) μg· L- 1和 (5 .1± 0 .8) vs(2 .4± 0 .4) μg· g- 1 ,P<0 .0 1],血浆 EGF无变化 .胃壁细胞泌酸小管不扩张 ,小管泡充盈不足 ,且数量不减少 ,非经非穴组及空白对照组各项指标无显著变化 .结论　电针足三里穴抑制大鼠胃 G细胞Gas释放 ,降低血浆 Gas,增加胃粘膜、胃液 EGF含量 ;电针足三里可改变胃壁细胞超微结构 ,抑制胃壁细胞泌酸小管功能、降低胃酸分泌     

芪丹通脉片对大鼠心肌线粒体损伤的保护作用

目的 :探讨芪丹通脉片 (QDTMT)对异丙肾上腺素(Iso)所致急性心肌缺血的防治作用 .方法 :给大鼠灌服QDTMT(2g·kg-1) 2wk ,皮下注射异丙肾上腺素 (Iso ,5mg·kg-1) ,诱导急性心肌缺血模型 ,测定心肌线粒体 (Mit)中丙二醛 (MDA)、超氧化物歧化酶 (SOD)、谷胱甘肽过氧化物酶(GXH PX)及琥珀酸脱氢酶 (SDH) .结果 :模型组线粒体中MDA含量增加 ,QDTMT组线粒体MDA含量显著低于模型组 [(8.9± 0 .6 )vs (5 .5± 0 .6 ) μmol·g-1,P <0 .0 1];线粒体中模型组SOD活性降低 ,QDTMT组SOD活性升高 ,两者相比较有显著性差异 [(6 73.2± 2 5 .2 )vs (5 36 .2± 2 0 .3)kNU·g-1,P <0 .0 1].QDTMT组GSH PX活力显著高于模型组 [(5 5 .3± 6 .0)vs (4 0 .7± 7.1)kNU·g-1,P <0 .0 1].QDTMT组线粒体中SDH活性明显升高 [(0 .0 7± 0 .0 1)vs (0 .0 5± 0 .0 1)kat·g-1,P <0 .0 1].结论 :QDTMT可通过降低心肌线粒体中MDA含量 ,增加SOD ,GSH PX及SDH活力 ,减轻氧自由基对心肌线粒体的损伤 .     

原发性肾病综合征患者sIL-2R,T细胞亚群及红细胞免疫功能的意义

目的　观察原发性肾病综合征 (PNS)患者细胞免疫功能变化 .方法　采用双抗体夹心 EL ISA法检测血清可溶性白细胞介素 2受体 (s IL - 2 R) ,流式细胞仪测定外周血 T细胞亚群 (CD3+ ,CD4 + ,CD8+ )及红细胞 C3b受体花环 (RBC-C3b RR)和红细胞免疫复合物花环 (RBC- ICR)试验 .结果　原发性肾病综合征组 s IL - 2 R明显高于对照组 [(398± 12 2 ) vs(2 0 2± 84 ) pm ol· L- 1 ,P<0 .0 1],T细胞亚群 CD3+ ,CD4 + ,CD8+较对照组明显降低 (0 .5 0± 0 .0 8) vs(0 .71±0 .0 7) ,(0 .2 6± 0 .0 7) vs(0 .36± 0 .0 7) ,(0 .2 2± 0 .0 5 ) vs(0 .31± 0 .0 6 ) ,P<0 .0 1,CD4 + / CD8+ 较对照组明显降低[(1.12± 0 .2 2 ) vs (1.32± 0 .30 ) ,P<0 .0 5 ],RBC- C3b RR较对照组明显降低 [(14 .5 %± 3.7% ) vs(2 1.4 %± 2 .3% ) ,P<0 .0 1],RBC- ICR与对照组比较明显增高 [(17.8%±5 .2 % ) vs(8.8%± 2 .1% ) ,P<0 .0 1].结论　原发性肾病综合征患者存在细胞免疫功能异常并参与发病     

芪丹通脉片对大鼠急性心肌缺血损伤的影响

目的 :观测芪丹通脉片 (QDTMT)急性心肌缺血损伤的影响 .方法 :用SD大鼠皮下注射异丙肾上腺素 (Iso,5mg·kg-1)诱导心肌缺血模型 ,观测心肌线粒体 (Mit)三磷酸腺苷酶(ATPase)活力、Ca2 + 含量 ;在电镜下 ,观察心肌线粒体超微结构的变化 .结果 :QDTMT组Ca2 + ATPase ,Mg2 + ATPase及Ca2 + Mg2 + ATPase活性显著高于模型组 [(4 0 .9± 8.1)vs(2 3.1± 5 .7) ,(4 0 .4± 4 .4 )vs(2 1.7± 6 .6 ) ,(94 .7± 8.6 )vs (6 3.5± 9.5 )mmol·g-1,P <0 .0 5 ];QDTMT组与模型组相比Ca2 + 显著降低 [(7.6± 1.6 )vs(12 .9± 1.3) ,(37.3± 5 .3)vs(73.2± 8.9)mmol·mg-1,P <0 .0 1].同时 ,与对照组相比 ,心肌超微结构的损害明显减轻 .结论 :QDTMT减轻钙超载和保护心肌细胞超微结构的作用 ,可能是其改善心肌缺血的作用机制之一 .     

纳洛酮减弱白细胞介素-2对大鼠心肌的抑制作用

目的 :研究白细胞介素 - 2 (IL - 2 )的心脏作用并探讨其相关机制。方法 :采用视频跟踪系统测定大鼠单个心室肌细胞的收缩 ;细胞内双波长钙荧光系统检测细胞内游离钙离子浓度 ;应用 Langendorff灌流装置 ,观察 IL - 2对完整心脏收缩力学的影响。结果 :与对照相比 ,IL - 2 (5、5 0 U/ml)显著抑制单个心室肌细胞的收缩幅度 [(74 .95±4 .79vs98.0 9± 5 .0 2 ) % ,(6 4.30± 5 .2 4 vs97.38± 4 .0 5 ) % ]、最大收缩速度 [(70 .2 3± 4 .85 vs98.0 9± 5 .4 6 ) % ,(6 1.15± 5 .2 0 vs97.38± 6 .85 ) % ]、最大舒张速度 [(71.2 2± 4 .79vs98.32± 6 .0 8) % ,(6 8.16± 5 .2 4 vs97.5 5±5 .0 0 ) % ]和舒张末细胞长度 [(88.2 8± 5 .84 vs97.95± 5 .5 2 ) % ,(84 .18± 6 .5 2 vs98.94± 6 .76 ) % ];IL- 2 (5、5 0 U/ml)显著降低电刺激诱导的心肌细胞内钙瞬变幅度 [(74 .94± 4 .90 vs98.0 9± 3.74 ) % ,(71.0 0± 5 .2 8vs97.38±5 .5 2 ) % ],使舒张末钙水平升高 [(113.91± 5 .93vs10 0 .10± 3.0 2 ) % ,(119.0 9± 7.12 vs10 0 .5 2± 6 .0 0 ) % ]。阿片受体阻断剂纳洛酮 (10 nmol/L)可阻断 IL- 2对心肌细胞收缩和细胞内钙的作用。在离体心脏 ,与对照相比 ,IL- 2 (5 0U/ml)可显著降低左心室     

芪丹通脉片对犬心肌耗氧量的影响

目的 :探讨芪丹通脉片 (QDTMT)对犬心肌耗氧量的影响 .方法 :将实验犬随机分为空白对照组 (Control)、QDTMT大剂量组 (QDTMTH)、QDTMT小剂量组 (QDTMTL)及阳性对照组 (Diltiazem) .用血氧测定仪测定冠状动、静脉血氧含量 ,计算心肌耗氧量 ,氧利用率 .结果 :给药 6 0min后 ,QDTMTH动脉血氧含量降低 ,与Control相比有显著性差异 [(12 4 .2± 2 5 .4)vs (96 8± 4 0 ) ,(137.1± 15 .1)vs (99.9± 2 .4 )和 (137.4±12 .6 )vs (94 3± 2 8)g·L-1,P <0 .0 1].给药 4 5min后 ,QDTMTL心肌耗氧量显著低于Control [(74 .5± 14 )vs (94 .6±11.5 ) ,(76 .0± 17.3)vs(90 .6± 11.5 ) ,(76 .9± 10 .4 )vs (90 .6± 5 .5 )和 (74 .6± 16 .7)vs (95 .0± 4 .9)mL·min-1,P <0 .0 5 ].QDTMTH、QDTMTL的心肌氧利用率均下降 ;6 0min后 ,与Con trol相比有显著性差异 [(84 .9± 8.0 )vs (98.0± 6 .6 ) ,(84 .6±6 .3)vs (94 .6± 4 .3)和 (82 .4± 7.5 )vs (99.9± 6 .6 ) % ,P <0 .0 5 ].结论 :QDTMT可通过降低心肌耗氧量 ,降低氧利用率 ,改善心肌缺血 .     

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.