卵巢浆液性囊腺癌组织中prostasin基因的表达及意义

目的：研究卵巢浆液性囊腺癌组织中prostasin基因的表达,探讨prostasin基因在卵巢浆液性囊腺癌发生和发展中的意义。方法：应用逆转录聚合酶链反应(RT-PCR)法检测10例卵巢浆液性囊腺癌、10例卵巢浆液性囊腺瘤及10例正常卵巢组织中prostasin mRNA的表达量。应用免疫组织化学方法检测prostasin蛋白在60例卵巢浆液性囊腺癌、24例卵巢浆液性囊腺瘤及24例正常卵巢组织中的表达率。结果：prostasin mRNA在卵巢浆液性囊腺癌组织中表达量显著增高（0.415±0.177）,与正常卵巢组（0.192±0.128）及卵巢浆液性囊腺瘤组（0.237±0.232）比较,差异均有显著性（P<0.05)。prostasin蛋白主要在细胞质中表达,在卵巢浆液性囊腺癌组的阳性表达率(65.0%)明显高于正常卵巢组(12.5%)及卵巢浆液 性囊腺瘤组(25.0%)（P<0.01);卵巢浆液性囊腺癌病理分级越高、临床分期越晚组织中prostasin蛋白表达率越高（P<0.05)。结论： prostasin 基因在卵巢癌发生和发展中起促进作用。     

B7-H4在卵巢癌的表达及意义

目的 探讨B7-H4在卵巢上皮来源肿瘤中的表达及其与卵巢癌临床病理学特征的关系,并与卵巢癌抗原CA125的表达进行分析比较.方法 采用免疫组织化学S-P法检测B7-H4和CA125在31例卵巢浆液性囊腺癌、13例卵巢黏液性囊腺癌、9例卵巢子宫内膜样癌、18例卵巢透明细胞癌、20卵巢浆液性囊腺瘤、15例卵巢黏液性囊腺瘤中的表达.结果 B7-H4在卵巢浆液性囊腺癌(100%),子宫内膜样癌(77.8%)及透明细胞癌(83.3%)中均出现过表达,而在黏液性囊腺癌中低表达(23.1%);B7-H4在浆液性囊腺癌(100%)和浆液性囊腺瘤(50%)中阳性率的差异有统计学意义(P<0.01);与CA125比较,非黏液性卵巢癌中B7-H4的阳性率高于CA125,其中浆液性囊腺癌,透明细胞癌中二者的差异有统计学意义(P<0.05),B7-H4和CA125的表达正相关(P<0.05);B7-H4的阳性率与卵巢癌的组织学类型有相关性(P<0.05),其在浆液性囊腺癌中有更突出的表达;B7-H4阳性细胞百分比与肿瘤的分化水平及FIGO临床分期无相关性(P>0.05);但各组B7-H4平均阳性细胞百分比均高于CA125,其中低分化组及Ⅲ～Ⅳ期组,二者的差异有统计学意义(P<0.05).结论 在非黏液性卵巢癌中,B7-H4出现优于CA125的高表达,其可能成为新的卵巢癌诊断标志物及治疗的新靶点.     

卵巢浆液性囊腺癌组织中β-连环蛋白的表达及其意义

目的：研究卵巢浆液性囊腺癌组织中β-连环蛋白（β-catenin）的表达,阐明β-连环蛋白在卵巢浆液性囊腺癌诊断中的临床意义。方法：采用RT-PCR法检测36例卵巢浆液性囊腺癌、10例卵巢浆液性囊腺瘤及10例正常卵巢组织β-连环蛋白mRNA的表达量。应用免疫组织化学方法检测β-连环蛋白在60例卵巢浆液性囊腺癌、24例卵巢浆液性囊腺瘤及24例正常卵巢组织中的表达率。结果：β-连环蛋白mRNA在卵巢浆液性囊腺癌组表达量为1.001±0.192,在正常卵巢组为0.588±0.128,在卵巢浆液性囊腺瘤组为0.600±0.262,卵巢浆液性囊腺癌组β-连环蛋白mRNA的表达量显著高于正常卵巢组和卵巢浆液性囊腺瘤组,差异有显著性（P<0.05)。β-连环蛋白主要在细胞质中表达,在卵巢浆液性囊腺癌组的β-连环蛋白阳性表达率为88.33%,明显高于正常卵巢组的20.83%和卵巢浆液性囊腺瘤组的33.33%（P<0.05);在卵巢癌组临床分期Ⅰ的卵巢癌β-连环蛋白阳性表达率为77.77%,临床分期Ⅳ期的卵巢癌β-连环蛋白阳性表达率为93.87%,两者比较差异有显著性（P< 0.05）;在卵巢癌病理分级G1、G2及G3组的β-连环蛋白阳性表达率分别为85.00%、89.28%和91.63%,组间比较差异无显著性（P>0.05）。结论：卵巢癌组织中β-连环蛋白mRNA和蛋白表达均增高,β-连环蛋白表达程度与卵巢癌临床分期相关,与病理分级无关,β-连环蛋白在卵巢癌诊断中起重要作用。     

卵巢癌Her-2/neu基因扩增和表达与临床病理特征的关系

目的研究卵巢癌中Her-2/neu基因扩增和表达及其与临床病理特征的关系。方法实时PCR检测69例卵巢癌组织中Her-2/neu基因的扩增状况,免疫组化检测Her-2/neu蛋白表达情况,将结果与临床病理特征相联系。结果本组卵巢癌组织中Her-2/neu基因扩增率为15.9%,蛋白过表达率约为29%;基因扩增率在黏液性囊腺癌和浆液性囊腺癌组织之间的差异具有显著性(P<0.05)。结论Her-2/neu基因扩增在卵巢黏液性囊腺癌组织中较为常见,其预后意义有待于进一步探讨。     

HIF-1α和MVD在卵巢上皮性肿瘤中的表达及意义

目的：检测卵巢上皮性肿瘤组织中缺氧诱导因子-1α（HIF-1α）和微血管密度（MVD）的表达,探讨HIF-1α和MVD在卵巢上皮性肿瘤发生、发展中的作用。方法：237例卵巢上皮性肿瘤患者,包括浆液性囊腺瘤79例、交界性浆液性囊腺瘤12例、浆液性囊腺癌51例、黏液性囊腺瘤67例、交界性黏液性囊腺瘤9例、黏液性囊腺癌19例。其中浆液性囊腺癌和黏液性囊腺癌按FIGO的手术-病理分期为：Ⅰ期13例,Ⅱ期26例,Ⅲ期19例,Ⅵ期12例。采用免疫组织化学方法检测上述卵巢上皮性肿瘤组织中HIF-1α表达和MVD,并将良性肿瘤、交界性肿瘤和恶性肿瘤,以及恶性肿瘤不同分期之间的HIF-1α表达和MVD值进行对比。同时对HIF-1α的表达和MVD值之间的相关性进行分析。结果：卵巢交界性浆液性囊腺瘤较卵巢浆 液性囊腺瘤和黏液性囊腺瘤组织中HIF-1α的阳性率均明显增高(P<0.05)。卵巢浆液性囊腺癌和黏液性囊腺癌组织中HIF-1α表达的阳性率均明显高于两组卵巢良性肿瘤(P<0.05)。卵巢交界性浆液性囊腺瘤和卵巢交界性黏液性囊腺瘤两交界性肿瘤组织中,MVD值均较两良性肿瘤组明显增高(P<0.05)。卵巢浆液性囊腺癌和黏液性囊腺癌组织中MVD值均较两良性肿瘤组和两交界性肿瘤组明显增高(P<0.05)。随着卵巢癌手术-病理分期级别的增高,HIF-1α 表达的阳性率也由Ⅰ期的38.46%逐渐增高至Ⅳ期的83.33%,其中Ⅳ期较Ⅰ期的阳性率明显增高(P<0.05)。随手术-病理分期级别的增高,MVD也增高,各组间比较差异具有显著性(P<0.05)。 不同组织类型及手术病理分期的卵巢上皮性肿瘤组织中,HIF-1α表达与MVD呈正相关关系(r =0.540,P<0.01)。结论：HIF-1α 与卵巢上皮性肿瘤血管形成密切相关,提示HIF-1α可能在促进卵巢上皮性肿瘤的发生、发展起到重要的作用。     

GPC3在卵巢透明细胞腺癌中的表达及临床意义

目的:探讨磷脂酰肌醇蛋白聚糖3(glypican-3,GPC3)在卵巢透明细胞腺癌中的表达及临床意义?方法:采用免疫组织化学方法分别检测83例卵巢癌组织(透明细胞腺癌45例?浆液性癌20例?黏液性癌18例)?20例浆液性囊腺瘤及20例正常卵巢组织中GPC3蛋白的表达情况,实时荧光定量PCR法检测38例卵巢癌组织(透明细胞腺癌20例?浆液性癌10例?黏液性癌8例)?5例浆液性囊腺瘤和5例正常卵巢组织中mRNA的表达情况,并分析GPC3与卵巢透明细胞腺癌临床病理学参数及预后的相关性?结果:①卵巢透明细胞腺癌中GPC3蛋白阳性表达率和mRNA表达量(82.2%;1.326 1 ± 0.493 6)均明显高于浆液性癌(20%;0.426 5 ± 0.029 4)?黏液性癌(5%;0.265 2 ± 0.103 9)?浆液性囊腺瘤(0%;0.141 3 ± 0.011 3)?正常卵巢组织(0%;0.291 4 ± 0.048 1),差异有统计学意义(P均 < 0.01);②GPC3蛋白阳性表达率及GPC3 mRNA表达量与卵巢透明细胞腺癌的临床分期有相关性,Ⅲ~Ⅳ期患者中的表达(100%;1.808 1 ± 0.265 7)显著高于Ⅰ~Ⅱ期患者(71.4%; 1.045 8 ± 0.403 6)(P值 < 0.01);③卵巢透明细胞腺癌铂类药物耐药患者GPC3蛋白阳性表达率及mRNA表达量(100%; 1.808 1 ± 0.265 7)均高于铂类药物敏感型患者(70.3%; 0.991 8 ± 0.330 3)(P < 0.05);④GPC3蛋白阳性表达率与卵巢透明细胞腺癌患者的预后相关,预后差的患者中阳性率及表达量高,差异有统计学意义(P < 0.05),Kaplan-Meier单因素生存分析亦显示GPC3蛋白为影响预后的因素(P=0.048);⑤卵巢透明细胞腺癌中GPC3蛋白阳性表达率和mRNA表达量与患者的淋巴结转移和远处器官转移无相关性(P > 0.05)?结论:GPC3在病理鉴别诊断中有重要意义,GPC3与卵巢透明细胞腺癌患者的临床分期和铂类耐药相关,提示其可能在卵巢透明细胞腺癌的发生发展起重要作用,有望成为卵巢透明细胞腺癌的预后指标和潜在治疗靶标?     

cyclin G1, G2蛋白表达与卵巢浆液性囊腺癌的相关性研究

目的探讨cyclin G1,G2蛋白表达与卵巢浆液性囊腺癌发生、发展的关系。方法应用免疫组化(S-P)方法,对32例卵巢浆液性囊腺癌和26例卵巢浆液性囊腺瘤的cyclin G1,G2蛋白表达进行检测。结果32例卵巢浆液性囊腺癌和卵巢浆液性囊腺瘤组织中cyclin G1蛋白表达阳性百分比分别为84.37%和30.77%,cyclin G2分别为21.88%和61.54%,差异均具有统计学意义(P<0.01)。cyclin G1蛋白在卵巢浆液性囊腺癌中表达增高,cyclinG2蛋白在卵巢浆液性囊腺癌中表达减低。结论cyclin G1,G2蛋白表达改变可能与卵巢浆液性囊腺癌的发生机制有关。     

OPN、CD44v6在卵巢浆液性囊腺癌组织中表达的意义

目的:探讨OPN及其受体CD44v6在卵巢浆液性囊腺癌组织中的表达及其临床意义。方法:采用免疫组化技术分别检测10例正常卵巢组织、10例卵巢浆液性囊腺瘤组织、20例卵巢交界性浆液性囊腺瘤组织、40例卵巢浆液性囊腺癌组织中OPN和CD44v6的表达。结果:卵巢浆液性囊腺癌组织中OPN和CD44v6阳性表达率分别为80.00%(32/40)和75.00%(30/40),显著高于正常卵巢组织、卵巢浆液性囊腺瘤组织和卵巢交界性浆液性囊腺瘤组织(P<0.01)。卵巢癌组织中OPN、CD44v6的阳性表达率与临床分期及有无淋巴结转移有关,而与患者年龄及病理分级无关。且OPN和CD44v6的表达呈正相关(rs=0.58,P<0.01)。结论:OPN、CD44v6可能与卵巢浆液性囊腺癌的发生发展及转移相关,联合检测两者的表达可作为反映卵巢癌恶性程度和预后的参考指标。     

自噬相关蛋白 LC3-Ⅱ在上皮性卵巢癌中的表达及临床意义

目的：本研究检测微管轻链Ⅰ蛋白3-Ⅱ型(LC3-Ⅱ)在不同卵巢肿瘤组织中的表达情况,探讨其与浆液性卵巢癌及粘液性卵巢癌发生、发展的相关性和意义。方法选取204例上皮性卵巢肿瘤标本,其中,卵巢浆液性囊腺瘤46例,交界性浆液性肿瘤28例,浆液性囊腺癌40例,黏液性囊腺瘤32例,交界性黏液性囊腺瘤30例,黏液性囊腺癌28例,另选取正常卵巢上皮组织28例作为对照。使用 SP 法检测正常卵巢上皮组织、上皮性卵巢肿瘤组织中 LC3-Ⅱ的表达,并结合浆液性癌、黏液性癌临床病理因素进行分析。结果①正常卵巢上皮中 LC3-Ⅱ无表达,卵巢良性浆液性囊腺瘤、交界性浆液性肿瘤及浆液性癌中 LC3-Ⅱ的阳性率分别为4．5%、71．0%、95．0%,交界性浆液性肿瘤和浆液性癌中 LC3-Ⅱ的表达明显高于良性浆液性囊腺瘤,差异有统计学意义(P <0．01)。卵巢良性黏液性囊腺瘤、交界性黏液性肿瘤及黏液性癌中 LC3-Ⅱ的阳性率分别为6．7%、66．7%、92．9%,交界性浆液性肿瘤和浆液性癌中 LC3-Ⅱ的表达明显高于良性浆液性囊腺瘤,差异有统计学意义(P <0．01);②在40例卵巢浆液性癌、28例卵巢黏液性癌中,LC3-Ⅱ表达与患者年龄、FIGO 分期及病理学分级等临床病理特征均无关。结论 LC3-Ⅱ在卵巢上皮性交界性肿瘤、癌中表达增高,自噬活性增强,可能与卵巢上皮性恶性肿瘤的进展有关。     

EZH2和PTEN蛋白表达与卵巢浆液性囊腺癌的相关性研究

目的探讨EZH2和PTEN蛋白在卵巢浆液性囊腺癌中的表达和意义。方法采用免疫组化SABC法对73例卵巢浆液性囊腺癌标本和39例卵巢浆液性囊腺瘤组织标本中EZH2和PTEN蛋白的表达进行检测。结果 EZH2在卵巢浆液性囊腺癌组织中表达阳性率为71.2%,高于卵巢浆液性囊腺瘤组织的阳性率12.8%(P<0.01),且随着病理分级和临床分期的增加而升高(rs分别为0.246、0.251,P<0.05);PTEN蛋白在卵巢浆液性囊腺癌组织中表达阳性率为45.2%,低于卵巢浆液性囊腺瘤组织的阳性率76.9%(P=0.0013),且随着病理分级和临床分期的增加而降低(rs分别为-0.330、-0.247,P<0.05);两者存在负相关(r=-0.903,P=0.005)。结论 EZH2和PTEN蛋白可能参与卵巢浆液性囊腺癌发生、发展过程,有望作为早期诊断和判断预后的指标。     

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.