银杏制剂对蛛网膜下腔出血大鼠体感诱发电位的影响

目的 探讨银杏叶制剂（ＧＢＥ）对蛛网膜下腔出血（ＳＡＨ）后神经功能的保护作用。方法 对假手术对照组,ＳＡＨ模型组和ＧＢＥ处理大鼠检测２４ｈ内局部脑血流量（ｒＣＢＦ）、体感诱导电位（ＳＥＰ）和脑组织一氧化氮（ＮＯ）含量的动态变化。结果 ＳＡＨ后ｒＣＢＦ持续下降,ＳＥＰ潜伏期逐渐延长,脑组织ＮＯ含量显著增加。ＧＢＥ有效拮抗上述指标的变化。结论 ＧＢＥ能缓解ＳＡＨ所致神经功能损伤,其机制之一为逆转脑组织ＮＯ的异常改变。     

脑血管痉挛后体感诱发电位潜伏期变化和尼莫地平的影响

目的 探讨尼莫地平对蛛网膜下腔出血（ＳＡＨ）后脑血管痉挛所致神经功能损伤的保护作用。方法 对单纯ＳＡＨ组和尼莫地平处理组大鼠观察手术前后基底动脉管径,并检测局部脑血流量（ｒＣＢＦ）、体感诱发电位（ＳＥＰ）及脑组织内皮素－１（ＥＴ－１）含量的动态变化。结果 ＳＡＨ组大鼠在诱导ＳＡＨ后ｒＣＢＦ立即降低,并持续２４ｈ,同时有基底动脉痉挛;ＳＡＨ后１ｈ开始至２４ｈＳＥＰ潜伏期逐渐延长,脑组织ＥＴ－１含量显     

急性脑血管痉挛大鼠血浆及脑组织内皮素—1含量动态变化研究

目的 探讨内皮素－１（ＥＴ１）在蛛网膜下腔出血（ＳＡＨ）后急性脑血管痉挛（ＣＶＳ）及其因性缶害中的作用。方法 应用大鼠ＳＡＨ模型,以假手术组为对照,检测２４ｈ内局部脑血流量,血浆及脑组织ＥＴ１含量的动态改变,同时于手术前后测量基底动脉（ＢＡ）管径。结果 ＳＡ后２４内ｒＣＢＦ迅速而持续降低,血浆及脑组织ＥＴＩ浓度显著增加。ＳＡＨ后ＢＡ明显痉挛。结论 血浆及脑组织ＥＴ１增加在ＳＡＨ后急性ＣＶＳ及其脑缺     

一氧化氮对大鼠蛛网膜下腔出血后脑血管痉挛时脑血流 …

目的：探讨一氧化氮（ＮＯ）对大鼠实验性蛛网膜十腔出血（ＳＡＨ）后脑血管痉挛（ＣＶＳ）时脑血流（ＣＢＦ）的作用。方法：将２４只大鼠随机分成４组（ｎ＝６）：Ａ组假手术＋盐水;Ｂ组假手术＋ＮＯＣ１２;Ｃ组ＳＡＨ＋盐水;Ｄ组ＳＡＨ＋ＮＯＣ１２。模型制成４８ｈ,通过Ｌａｓｅｒ－Ｄｏｐｐｌｅｒ血流仪观察ＮＯＣ１２（ＮＯ供体）持续静脉注射１ｈ内ＣＢＦ的变化。结果：Ａ组ＣＢＦ无变化,Ｂ、Ｄ组ＣＢＦ明显增加,且Ｂ级     

超氧化物歧化酶对大鼠感染性脑损伤的内源性保护作用

测定脑组织丙二醛（ Ｍ Ｄ Ａ） 和３ 种超氧化物歧化酶（ Ｔ Ｓ Ｏ Ｄ, Ｃｕ Ｚｎ Ｓ Ｏ Ｄ 及 Ｍｎ Ｓ Ｏ Ｄ） 活性在大鼠百日咳杆菌脑损伤中的变化,探讨 Ｓ Ｏ Ｄ 的内源性脂质抗氧化作用。结果显示：菌液组（４ ｈ ,２４ ｈ） 脑含水量（ Ｗ Ｃ） 、伊文思蓝含量（ Ｅ Ｂ） 及 Ｍｎ Ｓ Ｏ Ｄ 活性均 高于盐 水对照 组, Ｔ Ｓ Ｏ Ｄ 和 Ｃｕ Ｚｎ Ｓ Ｏ Ｄ 活性 低于 盐水组（ Ｐ ＜ ０ ．０ １） , Ｍ Ｄ Ａ 在菌液４ ｈ 组明显增高, 并分别与 Ｗ Ｃ 和 Ｅ Ｂ 呈显著正相关（ ｒ ＝ ０ ．９ ６５ ０ ,ｒ ＝ ０ ．９ ４４ １ , Ｐ 均 ＜ ０ ．０ １ ） ; 菌液２ ４ ｈ 组 Ｍｎ Ｓ Ｏ Ｄ 活性增高分别与 Ｗ Ｃ, Ｅ Ｂ 及 Ｍ Ｄ Ａ 呈显著负相关（ ｒ ＝ － ０ ．８６５０ ,ｒ ＝ － ０ ．９０２１ ,ｒ ＝ － ０ ．９３４６ , Ｐ 均＜ ０ ．０１ ） 。表明 Ｍｎ Ｓ Ｏ Ｄ 的合成增加在迟发性感染性脑损伤的内源性保护机制中起着重要作用。     

NO在大鼠脑缺血再灌注中对局部脑血流量和脑水肿作用的研究

目的：研究ＮＯ在脑缺血再灌注中对局部脑血流量和脑水肿的影响，为临床改进脑缺血的治疗提供新思路。方法：采用拴线法大鼠ＭＣＡ缺血再灌注模型，利用外源性ＮＯ前体（Ｌ－ａｒｇ）和ＮＯＳ抑制剂（Ｌ－ＮＡＭＥ）。将４２只Ｗｉｓｔａｒ大鼠随机分组，在ｒ－ＣＢＦ组和脑水肿两大组中分别设有：缺血再灌注盐水组，再灌注Ｌ－ａｒｇ组，再灌注Ｌ－ＮＡＭＥ组。结果：与盐水组比较，Ｌ－ａｒｇ组ｒ－ＣＢＦ明显升高（Ｐ＜０．０５），脑水肿显著减轻（Ｐ＜０．０５）；Ｌ－ＮＡＭＥ组ｒ－ＣＢＦ明显降低（Ｐ＜０．０５），脑水肿显著加重（Ｐ＜０．０５）。结论：ＮＯ对缺血再灌注脑组织有保护性作用。     

CLINICAL SIGNIFICANCE OF COMPLETE LEFT BUNDLE BRANCH BLOCK IN DILATED CARDIOMYOPATHY

ＣＬＩＮＩＣＡＬＳＩＧＮＩＦＩＣＡＮＣＥＯＦＣＯＭＰＬＥＴＥＬＥＦＴＢＵＮＤＬＥ　ＢＲＡＮＣＨＢＬＯＣＫＩＮＤＩＬＡＴＥＤＣＡＲＤＩＯＭＹＯＰＡＴＨＹＨｕａｎｇＸｉｕｈｕｉ（黄秀惠），ＳｈｅｎＷｅｉｆｅｎｇ（沈卫峰）ａｎｄＧｏｎｇＬａｎｓｈｃｎｇ（龚...     

CHANGES OF ENDOTHELIN-1 GENE EXPRESSION IN RAT BRAINS DURING ISCHEMIA AND ISCHEMIC REPERFUSION

ＣＨＡＮＧＥＳＯＦＥＮＤＯＴＨＥＬＩＮ－１ＧＥＮＥＥＸＰＲＥＳＳＩＯＮＩＮＲＡＴＢＲＡＩＮＳＤＵＲＩＮＧＩＳＣＨＥＭＩＡＡＮＤＩＳＣＨＥＭＩＣＲＥＰＥＲＦＵＳＩＯＮＷｕＷｅｉｐｉｎｇ（吴卫平）；ＫｕａｎｇＰｅｉｇｅｎ（匡培根）ａｎｄＬｉＺｈｅｎｚｈｏ...     

皓首复智丸对痴呆病人及痴呆模型鼠的抗氧化作用

目的 观察皓首复智丸（ＨＳＦＺＣ）对痴呆病人和大鼠的抗氧化作用。方法 老年性痴呆病人随机分为对照组和ＨＳＦＣ组,分别服用安慰剂和ＨＳＦＺＣ;脑内注入海人酸引起的痴呆模型鼠随机分为３组,分别服用生理盐水（ＮＳ）、脑复康（ＮＦＫ）和ＨＳＦＺＣ。用生物化学方法测定病人血清和大鼠血清及脑组织ＳＯＤ活性和ＭＤＡ含量。结果 （１）ＨＳＦＺＣ线病人治疗１月后,血清ＳＯＤ活性升高,ＭＤＡ含量降低,与对照组比较差异     

含hBDNF cDNA和HTH_1 cDNA两个转录单位表达质粒的构建及在CHO细胞的表达

在ＣＨＯ细胞同时表达ｈＢＤＮＦ和ＨＴＨ１ｃＤＮＡ两个外源基因。方法构建同时含ｈＢＤＮＦｃＤＮＡ和ＨＴＨ１ｃＤＮＡ两个转录单位的表达质粒并转染ＣＨＯ细胞,筛选出同时表达ｈＢＤＮＦ和ＨＴＨ１的克隆命名为ＣＨＯｈＢＤＮＦＨＴＨ１细胞;用双重免疫组化、ｗｅｓｔｅｒｎｂｌｏｔｉｎｇ及活性测定等方法检测外源ＨＴＨ１、ｈＢＤＮＦ基因在ＣＨＯｈＢＤＮＦＨＴＨ１细胞的表达。结果ｈＢＤＮＦ、ＨＴＨ１同时在ＣＨＯｈＢＤＮＦＨＴＨ１细胞得到表达;ＨＰＬＣ－ＥＣＤ法检测到ＣＨＯ－ｈＢＤＮＦ－ＨＴＨ１细胞培液中Ｌ－ＤＯＰＡ含量为每２４ｈ（２５．３±６．７）ｎｇ／１０６ｃｅｌｓ;ＣＨＯ－ｈＢＤＮＦ－ＨＴＨ１细胞培液可明显促进人胚脊神经根节细胞的存活和生长。结论采用多基因表达技术可以使ｈＢＤＮＦ和ＨＴＨ１ｃＤＮＡ两个外源基因同时在一个细胞中得到表达,而且表达的ｈＢＤＮＦ、ＨＴＨ１具有生物学活性     

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.