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1.
目的 检测支气管哮喘患儿外周血单个核细胞中长链非编码RNA X染色体失活特异性转录本(lncRNA XIST)、微小RNA-124(miR-124)表达水平,并探讨其临床意义。方法 选取2020年1月至2021年3月因支气管哮喘于河南大学第一附属医院门诊及病房接受治疗168例患儿,其中急性发作期82例(急性发作组)、缓解期86例(缓解组);同期选取84例健康体检儿童作为对照组。实时荧光定量PCR法检测外周血单个核细胞中lncRNA XIST、miR-124水平,肺功能仪检测肺功能指标第一秒用力呼气量(FEV1),酶联免疫吸附法检测炎症因子白细胞介素(IL)-17、IL-1β、IL-10、肿瘤坏死因子-α(TNF-α)水平;Pearson法分析支气管哮喘患儿lncRNA XIST、miR-124与肺功能指标、炎症因子水平相关性。结果 与对照组比较,缓解组、急性发作组lncRNA XIST及IL-17、IL-1β、TNF-α水平升高,miR-124、FEV1、IL-10水平降低,差异有统计学意义(P<0.05);与缓解组比较,急性发作组lncRNA XIST及IL-17、IL-1β、TNF-α水平升高,miR-124、FEV1、IL-10水平降低,差异有统计学意义(P<0.05)。支气管哮喘患儿外周血单个核细胞lncRNA XIST与miR-124水平呈负相关(r=-0.668,P<0.001)。支气管哮喘患儿lncRNA XIST与IL-17、IL-1β、TNF-α呈正相关(P<0.05),与FEV1、IL-10呈负相关(P<0.05);miR-124与FEV1、IL-10呈正相关(P<0.05),与IL-17、IL-1β、TNF-α呈负相关(P<0.05)。结论 支气管哮喘患儿外周血单个核细胞lncRNA XIST高表达,miR-124低表达,二者可能参与支气管哮喘疾病的发生发展。  相似文献   

2.
目的 探讨长链非编码RNA (lncRNA)锌指蛋白反义链1(ZFAS1)在肝纤维化(LF)中的作用。方法 四氯化碳(CCl4)诱导小鼠LF模型。苏木精-伊红染色(H-E染色)和天狼猩红染色观察肝脏组织学改变,ELISA检测肝组织羟脯氨酸(HYP)含量,免疫组织化学(IHC)检测肝组织α-平滑肌肌动蛋白(α-SMA)、Ⅰ型胶原α1(Col1α1)的表达,荧光定量PCR检测肝组织ZFAS1的表达水平,通过siRNA技术在NCTC1469细胞中沉默ZFAS1表达并模拟小鼠肝细胞的纤维化模型,免疫印迹法(Western-blot)检测细胞Col1α1、转化生长因子-β1(TGF-β1)、基质金属蛋白酶-2(MMP-2)的表达变化。结果 与对照组比较,CCl4诱导模型组小鼠肝组织内炎性细胞浸润明显,胶原纤维沉积明显增多,肝星状细胞(HSCs)活化增多(P<0.05),肝组织胶原分泌及其代谢产物HYP表达上调,肝组织内lncRNA ZFAS1表达明显升高(P<0.05)。与AML12细胞比较,NCTC1469细胞高表达内源性lncRNA Z...  相似文献   

3.
目的 探讨胃癌组织中长链非编码RNA(lncRNA)尿路上皮癌相关基因1(UCA1)、微小RNA(miR)-590-3p表达及与病理参数和预后的关系。方法 选取2017年1月至2018年7月河北省唐山市中医医院收治的107例胃癌患者,qRT-PCR检测癌组织和癌旁组织中lncRNA UCA1和miR-590-3p的表达。分析胃癌组织中lncRNA UCA1与miR-590-3p表达的相关性及与病理参数的关系。K-M法绘制不同lncRNA UCA1和miR-590-3p表达的胃癌患者生存曲线。结果 胃癌组织中lncRNA UCA1表达高于癌旁组织,miR-590-3p表达低于癌旁组织(P <0.05)。Pearson相关性分析显示,胃癌组织中lncRNA UCA1与miR-590-3p表达呈负相关(r=-0.720,P <0.01)。不同临床病理分期和淋巴结转移患者lncRNA UCA1和miR-590-3p表达比较,差异有统计学意义(P <0.05)。K-M生存曲线显示,高lncRNA UCA1表达组累积生存率低于低lncRNA UCA1表达组,高miR-590-3p...  相似文献   

4.
目的 研究长链非编码RNA X染色体失活特异转录本(lncRNA XIST)通过miR-193a-3p/重构剪切因子1(RSF1)轴对骨肉瘤细胞增殖、迁移的作用.方法 收集2017年9月至2018年12月滨州医学院烟台附属医院30例行骨肉瘤切除术获得的癌组织和癌旁组织,RT-qPCR检测癌组织和癌旁组织中lncRNA XIS T m RN A表达.采用脂质体转染法将sh-lncRN A XIS T重组质粒、空载质粒分别转至对数期生长的骨肉瘤HOS细胞,另取未做任何处理的HOS细胞为空白组.稳定转染48 h后,CCK-8法检测各组细胞培养24、48、72 h时的吸光度(A)值,划痕实验检测培养24 h时细胞的融合距离,荧光素酶报告基因实验检测LncRNA XIST、miR-193a-3p与RSF1之间的作用关系,RT-qPCR检测lncRNA XIST、miR-193a-3p、RSF1 mRNA表达,Western blot检测RSF1蛋白表达.结果 骨肉瘤组织中lncRNA XIST mRNA表达明显高于癌旁组织,差异有统计学意义(P<0.05).空白组、空载组及实验组A值随转染时间的延长而升高,差异有统计学意义(P<0.05).与空白组和空载组比较,实验组培养24、48、72 h后A值降低,融合距离缩短,lncRNA XIST、RSF1 mRNA表达降低,miR-193a-3p mRNA表达升高,RSF1蛋白表达降低,差异有统计学意义(P<0.05).结论 敲降ln-cRNA XIST可抑制骨肉瘤细胞增殖和迁移能力,可能通过miR-193a-3p/RSF1轴发挥作用.  相似文献   

5.
目的 探讨长链非编码RNA H19 (long non-coding RNA H19,IncRNA H19)对miR-124-3p表达的影响及在肝癌细胞增殖中的作用.方法Real-time PCR检测肝癌细胞系及临床标本中lncRNA H19和miR-124-3p的表达;在肝癌细胞系HepG2和SMMC7721中过表达lncRNA H19,Real-time PCR 检测miR-124-3p及其靶基因cyclinD1的表达;Western blot检测cyclinD1蛋白表达水平;CCK-8法检测lncRNA H19对细胞增殖的影响;过表达lncRNA H19同时加入antagomiR-124-3p后,检测miR-124-3p及其靶基因表达情况及细胞增殖情况.结果lncRNA H19和miR-124-3p在肝癌细胞系及肝癌组织中均低表达(P<0.05);过表达lncRNA H19后miR-124-3p表达显著增加(P<0.05),miR-124-3p的靶基因cyclinD1蛋白和mRNA表达明显下降(P<0.05),细胞增殖受到抑制(P<0.05);过表达lncRNA H19同时干扰miR-124-3p后,细胞增殖抑制作用减弱(P<0.05).结论长链非编码RNA H19通过促进miR-124-3p表达,进而抑制其靶基因cyclinD1表达而抑制肝癌细胞增殖.  相似文献   

6.
目的:观察长链非编码RNA小核仁RNA宿主基因5(lncRNA SNHG5)和miR-132-3p在子痫前期(PE)病人胎盘组织中的表达,分析二者的相关性及对PE的诊断价值。方法:选取112例PE病人作为研究对象,根据PE严重程度分为重度组58例和轻度组54例,另外选取同期健康妊娠孕妇60例作为对照组。采用实时荧光定量PCR检测胎盘组织中lncRNA SNHG5和miR-132-3p表达;Pearson相关分析观察PE病人胎盘组织中lncRNA SNHG5与miR-132-3p的相关性,及lncRNA SNHG5、miR-132-3p与临床指标的相关性;ROC曲线分析lncRNA SNHG5和miR-132-3p水平对PE的诊断价值。结果:轻度组和重度组PE病人24 h尿蛋白、收缩压以及舒张压水平均高于对照组(P<0.05);重度组收缩压、舒张压均高于轻度组(P<0.05)。轻度组、重度组lncRNA SNHG5水平低于对照组(P<0.05),miR-132-3p水平高于对照组(P<0.05);重度组lncRNA SNHG5水平低于轻度组(P<0.05)。...  相似文献   

7.
目的:探究结直肠癌(CRC)组织中长链非编码RNA(lncRNA)肿瘤抑制候选基因7(TUSC7)与微小RNA-1270(miR-1270)的相关性及二者与CRC患者预后的关系。方法:lnCAR数据库检索lncRNA TUSC7在CRC和正常结直肠组织中的表达情况。选取2018年6月至2019年1月本院收治的130例CRC患者为研究对象,收集手术切除的CRC和癌旁组织,检测CRC和癌旁组织中lncRNA TUSC7、miR-1270表达水平;分析CRC组织中lncRNA TUSC7表达水平与miR-1270相关性;分析CRC组织lncRNA TUSC7、miR-1270表达水平与CRC临床病理特征和预后关系。生物信息学网站预测lncRNA TUSC7与miR-1270的关系。结果:lnCAR数据库分析显示,lncRNA TUSC7在CRC组织中的表达水平低于正常结直肠组织(P<0.05); qRT-PCR结果显示,CRC组织中lncRNA TUSC7表达水平低于癌旁组织(P<0.05),miR-1270表达水平高于癌旁组织(P<0.05); CRC组织lncRNA T...  相似文献   

8.
目的 探究lncRNA XIST在子宫内膜癌组织中的表达及其靶向microRNA-101-3p(miR-101-3p)对癌细胞生物行为学的影响。方法 选取2019年7月—2021年7月南通市妇幼保健院82例手术切除且经术后病理确诊的子宫内膜癌患者的癌组织及癌旁正常子宫内膜组织标本。采用实时荧光定量聚合酶链反应(qRT-PCR)检测子宫内膜组织lncRNA XIST、miR-101-3p mRNA的相对表达量;比较不同因素间lncRNA XIST、miR-101-3p mRNA的差异;取Ishikawa细胞随机分为对照组(C组)、空质粒组(NC组)、lncRNA XIST表达抑制组(sh-XIST组),其中NC组和sh-XIST组分别转染空载质粒与plko-lncRNA XIST-shRNA,C组不进行任何处理;CCK-8法检测细胞增殖活性;划痕实验检测细胞迁移能力;Transwell小室实验检测细胞侵袭能力;双荧光素酶报告基因观察lncRNA XIST与miR-101-3p的靶向性。结果 子宫内膜癌组织中lncRNA XIST mRNA相对表达量高于癌旁组织(P <0.05),m...  相似文献   

9.
目的 探讨长链非编码RNA牛磺酸上调基因1(lncRNA TUG1)吸附microRNA-144(miR-144)对狼疮肾炎小鼠肾小球系膜细胞炎症因子分泌与凋亡的影响机制。方法 B6.MRL-FaslprNju系统性红斑狼疮模型小鼠20只和C57BL/6健康小鼠5只在适应性条件下喂养5 d。每天收集B6.MRL-FaslprNju系统性红斑狼疮模型小鼠24 h尿量,尿蛋白浓度> 1 mg/L表明狼疮肾炎发病,为狼疮肾炎组。C57BL/6小鼠为正常组。分离纯化两组小鼠肾小球系膜细胞。对lncRNA TUG1实施亚细胞定位,采用实时荧光定量聚合酶链反应(qRT-PCR)检测狼疮肾炎组和正常组小鼠肾组织中lncRNA TUG1和miR-144 mRNA相对表达量。狼疮肾炎组小鼠肾小球系膜细胞转染并分为NC组(肾小球系膜细胞转染阴性对照序列)、TUG1过表达组(肾小球系膜细胞转染TUG1)、sh-TUG1组(肾小球系膜细胞转染sh-TUG1)、miR-144 mimic组(肾小球系膜细胞转染miR-144 mimic)、TUG1过表达+miR-144 mimic组(肾小球系膜细胞转染TUG1和miR-144 mimic)。双荧光素酶报告实验验证lncRNA TUG1和miR-144的靶向关系,采用酶联免疫吸附试验(ELISA)检测各组细胞中炎症因子TNF-α、IL-1β、IL-6的水平。Western blotting法检测纤维化标记因子Ⅳ型胶原(Col Ⅳ)、纤连蛋白(FN)的蛋白相对表达量。MTT法检测各组细胞增殖活力,Transwell实验检测各组细胞侵袭数,流式细胞术检测各组细胞凋亡率。结果 与正常组小鼠比较,狼疮肾炎组小鼠肾组织中的miR-144 mRNA相对表达量升高,lncRNA TUG1 mRNA相对表达量降低(P <0.05)。lncRNA TUG1与miR-144存在靶向结合关系。NC组、TUG1过表达组、sh-TUG1组、miR-144 mimic组、TUG1过表达+miR-144 mimic组细胞TNF-α、IL-1β、IL-6水平比较,差异有统计学意义(P <0.05);与NC组比较,TUG1过表达组TNF-α、IL-1β和IL-6水平降低,miR-144 mimic组TNF-α、IL-1β、IL-6水平升高(P <0.05)。各组的Col Ⅳ、FN蛋白相对表达量比较,差异有统计学意义(P <0.05);与NC组比较,TUG1过表达组Col Ⅳ和FN蛋白相对表达量降低,miR-144 mimic组Col Ⅳ、FN蛋白相对表达量升高(P <0.05)。各组不同时间点的肾小球系膜细胞增殖活力比较,采用重复测量设计的方差分析,结果 ①不同时间点的肾小球系膜细胞活力有差异(P <0.05);②各组肾小球系膜细胞活力有差异(P <0.05);③各组的细胞活力变化趋势有差异(P <0.05);与NC组48 h和72 h比较,TUG1过表达组48 h和72 h细胞增殖活力降低(P <0.05),sh-TUG1组48 h和72 h细胞增殖活力增强(P <0.05),miR-144 mimic组48 h和72 h细胞增殖活力增强(P <0.05)。各组肾小球系膜细胞侵袭数和细胞凋亡率比较,差异有统计学意义(P <0.05);与NC组比较,TUG1过表达组的细胞侵袭数减少(P <0.05),细胞凋亡率升高(P <0.05);sh-TUG1组细胞侵袭数增多(P <0.05),细胞凋亡率降低(P <0.05);miR-144 mimic组细胞侵袭数增多(P <0.05)、细胞凋亡率降低(P <0.05)。结论 lncRNA TUG1吸附miR-144进而抑制狼疮肾炎小鼠肾小球系膜细胞炎症因子分泌,减少细胞增殖并促进凋亡。  相似文献   

10.
目的:探讨盆腔炎性疾病(PID)患者血清中miR-140-5p、Toll样受体4(TLR4)的表达水平及其临床意义,旨在为诊断和治疗PID患者提供相关依据。方法:选取2020年10月至2021年10月本院收治的132例PID患者为PID组,100例体检健康人群作为对照组;采用实时荧光定量PCR(RT-qPCR)技术检测miR-140-5p、TLR4表达水平;采用酶联免疫吸附法(ELISA)检测TNF-α、IL-6、IL-4和IL-1β的含量;Pearson法分析miR-140-5p、TLR4的相关性以及二者与TNF-α、IL-6、IL-4、IL-1β的相关性;绘制ROC曲线分析miR-140-5p、TLR4对PID的诊断价值。结果:PID组血清miR-140-5p表达水平显著低于对照组,TLR4的表达水平显著高于对照组(P<0.05),二者表达水平具有负相关关系(P<0.05);随着PID严重程度增加miR-140-5p的表达水平降低,TLR4的表达水平升高(P<0.05);PID组患者血清TNF-α、IL-6、IL-1β水平较对照组显著升高,IL-4水平显著降低(P...  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

19.
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.  相似文献   

20.
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.  相似文献   

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