柴胡加龙骨牡蛎汤治疗冠心病并焦虑状态疗效的Meta分析

目的 系统评价柴胡加龙骨牡蛎汤（CHJLGMLT）治疗冠心病并焦虑状态的临床疗效。方法 全面检索PubMed、EMbase、中国知网、VIP、WANFANG等数据库中CHJLGMLT治疗冠心病并焦虑状态的临床随机对照试验(randomized controlled trial,RCT),时限为建库至2020年5月,经过筛查、质量评估（Cochrane评价）将纳入文献的数据提取整理,利用RevMan5.3软件进行Meta分析。结果 最终纳入8篇文献。Meta分析结果显示：CHJLGMLT联合西药（冠心病基础用药及抗焦虑药）可有效改善患者的焦虑状态,降低焦虑量表评分[HAMA评分MD= -4.06,95% CI (-4.94,-3.18),P＜0.000 01;SAS评分MD=-5.45,95% CI (-6.47,-4.43),P＜0.000 01];CHJLGMLT联合西药组心绞痛疗效明显高于西药组[OR=5.16,95% CI (2.68,9.94),P＜0.000 01]、躯体活动受限明显改善（西雅图心绞痛评分量表）[MD=11.54,95%CI(8.15,14.93),P＜0.000 01]、中医症状积分明显降低[MD=-2.29,95%CI (-2.57,-2.01),P＜0.000 01]。结论 CHJLGMLT联合西药较单纯西药可更有效改善冠心病患者的焦虑状态、心绞痛症状、躯体活动受限程度及中医症状。     

注射用黄芪多糖辅助治疗非小细胞肺癌的Meta分析

目的系统评价注射用黄芪多糖联合放疗、化疗作为非小细胞肺癌(NSCLC)辅助治疗的有效性和安全性。方法计算机检索截止到2017年4月中国知网(CNKI)、中国科技期刊全文数据库(VIP)、万方数据库、PubMed、Cochrane图书馆和EMbase数据库,收集有关黄芪多糖联合放疗、化疗治疗NSCLC的随机对照试验,按照Cochrane干预措施系统评价手册5.1.0评价标准对纳入的研究进行质量评价,并用Rev Man 5.3.5软件进行Meta分析。结果最终共纳入9个RCT,共783例患者。Meta分析结果显示:治疗组在治疗有效率[OR=1.93,95%CI(1.24,3.00),P=0.003]、卡氏评分[MD=9.33,95%CI(7.26,11.40),P0.000 01]、CD_3~+[MD=11.26,95%CI(10.40,12.11),P0.000 01]、CD_4~+[MD=10.51,95%CI(7.64,13.39),P0.000 01]、CD_4~+/CD_8~+[MD=0.39,95%CI(0.32,0.46),P0.000 01]、白细胞计数[MD=1.81,95%CI(1.49,2.13),P0.000 01]、中性粒细胞计数[MD=2.23,95%CI(1.84,2.61),P0.000 01]等方面均优于对照组。然而,仅有1篇研究报道不良事件。结论注射用黄芪多糖联合放疗、化疗能提高非小细胞肺癌疗效,减少放疗化疗后不良反应的发生。但是由于此研究纳入文献数量过少且质量不高,上述结论尚需要更多的大样本高质量多中心大型RCT予以证实。     

中西医结合治疗克罗恩病临床疗效及安全性的系统评价与Meta分析

【目的】系统评价中西医结合治疗克罗恩病的临床疗效及安全性。【方法】检索中国知网(CNKI)、万方(Wanfang)、维普(VIP)、PubMed、Cochrane Library、Embase等数据库中关于中西医结合治疗克罗恩病的随机对照试验(RCT)。对纳入文献进行质量评价及数据提取,采用RevMan 5.3软件对数据进行Meta分析。【结果】最终纳入18个随机对照试验,共1 259例患者。Meta分析结果显示:与单纯西医治疗比较,中西医结合治疗克罗恩病可明显提高治疗总有效率[RR=1.15,95%CI(1.06,1.24),P=0.001]、血红蛋白(Hb)水平[MD=15.75,95%CI(11.47,20.03),P0.000 01],降低复发率[RR=0.28,95%CI(0.11,0.71),P=0.007]、克罗恩病疾病活动指数(CDAI)评分[MD=-21.86,95%CI(-26.44,-17.27),P0.000 01]、血小板(PLT)计数[MD=-39.72,95%CI(-55.62,-23.81),P0.000 01]、C反应蛋白(CRP)[MD=-5.05,95%CI(-8.28,-1.83),P=0.002]、红细胞沉降率(ESR)[MD=-6.93,95%CI(-9.39,-4.47),P0.000 01]、肿瘤坏死因子α(TNF-α)[MD=-1.54,95%CI(-2.12,-0.96),P0.000 01]水平;而关于不良反应发生率,两组间的差异不具有统计学意义(P0.05)。【结论】中西医结合治疗克罗恩病具有一定优势,但仍需更多高质量临床试验来进一步验证其疗效及安全性。     

系统评价针刺结合关节松动术治疗肩关节周围炎Meta分析

目的系统评价针刺结合关节松动术治疗肩关节周围炎的有效性和安全性。方法依据Meta分析要求,计算机检索PubMed、CBM、EMbase、The Cochrane Library、中国知网、维普、万方等中英文数据库,计算机检索年限为建库至2019年3月,并辅以手工检索作为补充,手工检索年限为2016—2019年,纳入的文献是以针刺结合关节松动术为干预措施治疗肩关节周围炎的临床随机对照试验,根据纳入以及排除标准筛选文献,文献由两名专业人员独立检索提取,使用RevMan5.3软件进行系统评价分析和文献质量评价。结果共纳入16篇临床随机对照试验,1487例患者。Meta分析结果显示,16篇文献总有效率异质性检验:[Chi~2=10.65,P=0.78,I~2=0,OR=4.34,95%CI(2.91,6.47),Z=7.18,P0.000 01];8篇文献视觉模拟评分(VAS评分)异质性检验:[MD=-1.53,95%CI(-2.37,-0.69),Z=3.56,P0.000 01];5篇文献报道了肩关节活动度(ROM)5个方面异质性检验的结果分别为前屈[MD=16.55,95%CI(2.14,30.95),Z=2.25,P0.000 01]、后伸[MD=10.37,95%CI(4.80,15.93),Z=3.65,P0.000 01]、外展[MD=14.88,95%CI(7.53,22.23),Z=3.97,P0.000 01]、内旋[MD=12.10,95%CI(10.38,13.83),P0.000 01]、后旋[MD=12.58,95%CI(10.84,14.32),P0.000 01]。没有文献报道有不良反应发生。结论针刺结合关节松动术治疗肩关节周围炎疗效明确,可减轻患者疼痛,有一定安全性,中医针刺疗法结合现代康复技术-关节松动术将对肩关节周围炎的实验研究和临床治疗起到一定的指导作用。     

基于“肾主骨”理论探讨补肾活血法治疗骨质疏松性椎体压缩骨折微创术后疗效的Meta分析

目的 系统评价补肾活血法对骨质疏松性椎体压缩骨折（Osteoporotic vertebral compression fracture,OVCF）术后患者的疗效。方法 检索CNKI、WanFang、VIP、SinoMed、Pubmed、Embase、Cochrane Library及Web of Science文献数据库,收集自建库至2021年8月补肾活血法治疗骨质疏松性椎体压缩骨折的随机对照试验,应用RevMan 5.4软件进行Meta分析。结果 纳入15项随机对照试验研究,共1 208例患者,试验组608例,对照组600例,Meta分析结果显示：试验组临床疗效总有效率均优于单纯对照组[RR=1.19,95%CI=(1.11,1.28),P<0.000 01];应用补肾活血法时长在3个月以上时间段,试验组VAS评分均优于对照组[MD=-0.86,95%CI（-0.98,-0.75）,P<0.000 01];试验组在提高骨质疏松骨折患者术后Oswestry功能障碍指数问卷（Oswestry disability index,ODI）评分方面优于对照组[MD=-6.51,9...     

血必净注射液治疗脓毒症有效性的Meta分析

目的:评价血必净注射液治疗脓毒症的有效性。方法:计算机检索中国知网数据库(CNKI)、中国生物医学文献数据库(CBM)、维普数据库(VIP)、万方数据库、Cochrane图书馆和PubMed,所有数据库均检索至2019年8月,全面收集有关血必净注射液治疗脓毒症的随机对照试验,按照纳入与排除标准筛选文献,并用Jadad随机对照试验评分法和Cochrane评价手册5.1.0中的风险评估工具评价纳入研究的质量,符合纳入标准的研究提取数据并采用RevMan 5.3软件对数据进行Meta分析。结果:共纳入16篇随机对照试验,治疗组共743例患者,对照组共680例患者。Meta分析结果显示:与常规治疗组比较,联用血必净注射液治疗组可以降低脓毒症患者的28 d病死率[OR=0.35,95%CI(0.20,0.60),P=0.000 2]、白细胞计数(WBC)[MD=-1.95,95%CI(-3.62,-0.28),P=0.02]、中性粒细胞计数(N)[MD=-3.22,95%CI(-4.56,-1.88),P0.000 01]、降钙素原(PCT)[MD=-1.29,95%CI(-1.97,-0.62),P=0.000 2]、C反应蛋白(CRP)[MD=-19.26,95%CI(-29.50,-9.03),P=0.000 2]、肿瘤坏死因子-α(TNF-α)[MD=-35.46,95%CI(-45.49,-25.44),P0.000 01]、凝血酶原时间(PT)[MD=-2.85,95%CI(-3.35,-2.35),P0.000 01]和活化部分凝血活酶时间(APTT)[MD=-4.44,95%CI(-5.46,-3.42),P0.000 01],但在总有效率、血小板计数(PLT)方面升高不明显。结论:在常规治疗的基础上联用血必净注射液治疗脓毒症有一定的治疗效果,但由于纳入的文献质量总体不高,为进一步验证其有效性需要开展设计严格的大样本、多中心、双盲的随机对照临床试验。     

补肾祛瘀法治疗糖尿病认知功能障碍疗效的Meta分析

目的系统评价补肾祛瘀法治疗糖尿病认知功能障碍(Diabetic cognitive dysfunction,DCD)的临床疗效及安全性。方法检索中国知网、万方数据库、中国生物医学文献服务系统、Pub Med、EMbase以及Cochrane数据库,检索时间为建库至2020年4月,由2名评价者独立筛选文献、提取资料和评价纳入研究文献质量,运用Rev Man5.3软件进行Meta分析。结果最终纳入9项随机对照试验(RCTs),共649例,其中试验组326例,对照组323例。Meta分析结果显示:与对照组比较,补肾祛瘀法治疗能显著提高临床有效率[RR=1.50,95%CI(1.29～1.73),P 0.000 01],能显著改善Moca量表积分[MD=2.74,95%CI(1.76～3.19),P=0.000 01],能显著改善MMSE量表评分[MD=2.07,95%CI (1.40～2.73),P 0.000 01],能显著改善MQ评分[MD=13.61,95%CI(9.78～17.44),P 0.000 01],对ADL14项量表有显著的改善作用[MD=6.71,95%CI(4.65～8.78),P 0.000 01]。但两组对于改善CDR评分[MD=-0.01,95%CI(-0.08～0.77),P=0.84]及ADL20项评分[MD=-1.07,95%CI(-2.99～0.85),P=0.28]方面差异无统计学意义。结论运用补肾健脾法治疗糖尿病认知功能障碍,可提高临床有效率、改善Moca量表、MMSE量表、MQ量表评分,但纳入文献质量相对偏低且病例数较少,仍需高质量、大样本量RCTs进一步验证。     

保守治疗与手术治疗踝关节骨折Meta分析

目的:系统评价保守治疗与手术切开复位治疗踝关节骨折的疗效。方法:计算机检索外文数据库:PubMed、Cochrane Library、Embase及中文数据库:中国知网、维普、万方所收录的相关文献,检索时间为2010年1月至2019年10月。本研究提取Mazur评分、AOFAS评分、有效率、骨折愈合时间、不良反应及住院费用为评价指标。采用RevMan 5.3软件进行数据分析。结果:共有11篇文献纳入研究,均为随机对照试验,总计1 078例患者,其中保守治疗组537例,手术治疗组541例。结果显示,两组患者Mazur评分[MD=-8.19,95%CI(-11.91,-4.46),P0.000 01]、AOFAS评分[MD=-7.62,95%CI(-8.50,-6.73),P0.000 01]、有效率[OR=0.80,95%CI(0.74,0.87),P0.000 01]等指标比较,差异有统计学意义(P0.05),手术组优于保守组;两组骨折愈合时间[MD=0.53,95%CI(0.31,076),P0.000 01]、不良反应[MD=2.82,95%CI(1.46,5.44),P=0.002]这两项指标比较,差异有统计学意义(P0.05),保守组优于手术组。结论:手术治疗踝关节骨折疗效显著,术后功能恢复好,但受纳入研究数量和质量的限制,上述结论还需更多高质量研究予以证实。     

饮食管控对冠心病患者营养评价指标影响的Meta分析

[目的]分析饮食管控对冠心病患者营养评价指标的影响.[方法]检索中英文数据库中有关营养评价指标在冠心病患者饮食管控中效果的随机对照试验方面的文献,由2名研究人员按照文献纳入及排除标准和Cochrane手册5.1.0版标准独立筛选文献,提取资料,评价文献质量.应用RevMan5.2软件对资料进行Meta分析.[结果]最终纳入12篇文献,共12 185例患者.Meta分析结果显示,饮食管控可提高冠心病患者的血清总蛋白[MD=9.55,95%CI(8.85,10.25),P<0.000 01]及血清白蛋白[MD=6.43,95%CI(5.89,6.98),P<0.000 01]水平,降低低密度脂蛋白[MD=-4.50,95%CI(-4.85,-4.16),P<0.000 01]水平及体质量指数[MD=3.74,95%CI(3.36,4.13),P<0.000 01].[结论]饮食管控对冠心病患者康复及降低复发风险有重要意义.     

清胰汤联合早期肠内营养治疗重症急性胰腺炎临床疗效Meta分析

目的运用Meta分析的方法对清胰汤联合早期肠内营养治疗重症急性胰腺炎的临床疗效进行评价。方法计算机检索中国期刊全文数据库(CNKI)、维普数据库(VIP)、万方数据库(WanFang Data)、中国生物医学文献数据库(CBM)、Pubmed、Cochrane Library、CSCI数据库,检索时限为建库至2019年11月。2名评价者独立筛选文献、提取资料和评价纳入研究偏倚后,采用RevMan5.3软件进行Meta分析。结果最终纳入7项随机对照试验(RCT),总病例数480例。分析结果显示:与对照组比较,清胰汤联合早期肠内营养治疗重症急性胰腺炎(severe acute pancreatitis,SAP)能明显缩短住院时间[MD=-10.20,95%CI(-12.50,-7.90),P0.000 01],腹胀缓解时间[MD=-3.51,95%CI(-4.82,-2.21),P0.000 01],肠道功能恢复时间[MD=-6.00,95%CI(-7.86,-4.13),P0.000 01];降低血清淀粉酶[SMD=-1.08,95%CI(-1.37,-0.78),P0.000 01]及血清肿瘤坏死因子-α(TNF-α)水平[MD=-44.54,95%CI(-51.39,-37.69),P0.000 01];升高血清白蛋白水平[MD=8.23,95%CI(6.94,9.53),P0.000 01];并能降低胰周感染率[OR=0.30,95%CI(0.15,0.62),P=0.001],并发症发生率[OR=0.41,95%CI(0.23,0.72),P=0.002]以及病死率[OR=0.28,95%CI(0.11,0.68),P=0.005]。结论在西医治疗基础上予清胰汤联合早期肠内营养治疗SAP可明显缩短住院时间、腹胀缓解时间,加快肠道功能的恢复,降低血清炎症因子TNF-α及血清淀粉酶水平,升高血清白蛋白水平,降低胰周感染率、并发症发生率和病死率。但纳入文献质量偏低,需大量高质量的RCT进一步验证。     

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.