HX液和CollinsⅡ液对大鼠肝窦内皮细胞及肝脏生化功能影响的对比研究

为对比观在ＨＸ液和ＣｏｌｌｉｎｓⅡ液对被保存鼠肝肝窦内皮细胞损伤程度和肝脏生化功能的影响，作者将７０只Ｗｉｓｔａｒ大鼠随机分为对照组（ｎ＝１０），Ｈ组（ＨＸ液保存，ｎ＝３０）和Ｃ组（ＣｏｌｌｉｎｓⅡ液保存，ｎ＝３０），制成大鼠肝脏离体灌注模型，而后测定其肝窦内皮细胞死亡率，Ｋｒｅｂｓ－Ｈｅｎｓｅｌｅｉｔ液内酮体比、肝脏糖释放量和分泌胆汁的肝脏数量。实验结果表明，ＨＸ液在防止肝窦内皮细胞损伤和维持肝脏正常生化功能方面的作用明显优于ＣＯｌｌｉｎｓⅡ液。     

HX液保存大鼠肝脏有效时间的探讨

采用大鼠肝脏非循环离体灌注模型比较ＨＸ液和ＵＷ液保存鼠肝效果，取６６只封闭群Ｗｉｓｔａｒ大鼠肝脏，随机采用ＨＸ液或ＵＷ液保存１２、１８、２４和３０小时，测定肝组织含水量，肝窦内皮细胞死亡率、Ｋｒｅｂｓ－Ｈｅｎｓｅｌｅｉｔ液天门冬氨酸转氨酸活性，分泌胆汁的肝脏数量及肝脏组织形态学变化，结果提示：保存时间２４小时内ＨＸ液保存鼠肝效果与ＵＷ液类似。     

HX液保存大鼠肝脏有效时间的探讨

采用大鼠肝脏非循环离体灌注模型比较ＨＸ液和ＵＷ液保存鼠肝效果。取６６只封闭群ｗｉｓｔａｒ大鼠肝脏，随机采用ＨＸ液或ＵＷ液保存１２、１８、２４和３０小时，测定肝组织含水量、肝窦内皮细胞死亡率、Ｋｒｅｂｓ－ｈｅｎｓｅｌｅｉｔ液天门冬氨酸转氨酶活性、分泌胆汁的肝脏数量及肝脏组织形态学变化。结果提示：保存时间２４小时内ＨＸ液保存鼠肝效果与ＵＷ液类似。     

HX—Ⅰ液作为腹部内多器官灌注液可行性研究

采用大鼠肘脏非循环离体灌注模型，观察ＨＸ－Ⅰ液对大鼠肝组织含水量，肝窦内皮细胞死亡率，Ｋｒｅｂｓ－Ｈｅｎｓｅｌｅｉｔ海天门冬氨酸转移酶活性、分泌胆汁的肝脏数量；观察ＨＸ－Ⅰ液对糖尿病大鼠胰腺移植术后血糖、糖耐量、胰岛素变化，观察ＨＸ－１液对狗肾移植术后血肌杆、存活率及肝、胰，肾脏的表态学。     

甲基强的松龙对低温保存大鼠肝脏的保护作用

应用Ｗｉｓｔａｒ大鼠肝脏离体灌流模型，用ＣＭＵ—１号液，含有甲基强的松龙的ＣＭＵ—１号液，以及缺血前预用甲基强的松龙后再用ＣＭＵ—１号液分别对肝脏进行灌洗保存。检测ＬＤＨ、ＡＬＴ、肝组织匀浆ＳＯＤ活性和ＭＤＡ含量，并观察肝组织结构。结果表明：甲基强的松龙对低温保存的离体大鼠肝脏具有保护作用     

药物H、Y、D对大鼠肝脏低温保存损伤的保护作用

目的 研究药物Ｈ、Ｙ、Ｄ对大鼠肝脏保存损伤的保护作用。方法 采用大鼠肝脏离体非循环灌注模型,观察乳酸林格液（ＬＲ液）中加入不同剂量药物Ｈ、Ｙ、Ｄ后保存大鼠脏脏１２ｈ的效果。结果 鼠肝经加入药物Ｈ、Ｙ、Ｄ的ＬＲ液温保存后,其肝组织ＡＴＰ、ＴＡＮ含量、ＡＥＣ及分泌胆汁量明显高于对照组（Ｐ〈０．０５）,且ＡＴＰ、分泌胆汁量与ＬＲ液内Ｈ、Ｙ、Ｄ剂量在一定范围内呈正相关。药物Ｈ、Ｙ、Ｄ具有抗．ＯＨ的作用,可     

氯丙嗪在大鼠肝脏低温保存中的保护作用

目的：研究氯丙在肝脏保温保存再灌损伤中的作保护作用。方法：大鼠肝脏保存于４℃＃Ｅｕｒｏ－ｃｏｌｌｉｎｓ液和氯丙嗪－Ｅｕｒｏ－ｃｏｌｌｉｎｓ液中，８ｈ后移植给受体大鼠，检测血清转氨酶与组织中钙、钠、钾含量，观察肝脏超微结构变化。结果：氯丙嗪具有维持正常肝脏结构与功能的作用，氯丙嗪组大鼠血清转氨酶水平及肝组织中钙含量明显降低，钾／钠比例明显升高，结论：可以提高肝脏的保存质量，维持下沉的结构与功能，延长     

苦参碱防治肝血窦内皮细胞冷缺血-再灌注损伤

目的：探讨苦参碱对大鼠原位肝移植中肝血窦内皮细胞冷缺血-再灌注损伤的保护作用及其机制。方法：应用大鼠原位肝移植模型，供肝保存5h，168只大鼠随机分为对照组、小剂量治疗组、大剂量治疗组和假手术组，分别检测移植术后1、2、4、24h血透明质酸(HA)、一氧化氮(NO)、肿瘤坏死因子α(TNF-α)及肝组织丙二醛(MDA)、超氧化物歧化酶(SOD)、细胞间黏附分子-1(ICAM-1)的含量，并观察肝血窦内皮细胞形态学的改变。结果：与对照组比较，治疗组术后各时间点的HA和ICAM-1表达均显著减少，NO含量增加，TNF—α、MDA、SOD水平均明显降低，肝血窦内皮细胞形态出现改善。结论：苦参碱对大鼠原位肝移植冷缺血-再灌注中肝血窦内皮细胞损伤具有保护作用。     

缺血预处理对缺血再灌注大鼠肝脏的保护作用

目的 观察缺血预处理（ｉｓｃｈｅｍｉｃｐｒｅｃｏｎｄｉｔｉｏｎｉｎｇ,ＩＰＣ）对缺血再灌注的大鼠肝脏的保护作用。方法 建立大鼠肝脏缺血再灌注（ｉｓｃｈｅｍｉａ ｒｅｐｅｒｆｕｓｉｏｎ,Ｉ／Ｒ）损伤模型,选取肝脏损伤时的典型指标：血清丙氨酸转氨酶（ＡＬＴ）、天冬氨酸转氨酶（ＡＳＴ）、乳酶脱氢酶（ＬＤＨ）,肝组织中丙二醛（ＭＤＡ）、过氧化物歧化酶（ＳＯＤ）、组织中中性粒细胞（ＭＮｓ）浸润量等,比较缺血     

黄芪在肝脏缺血-再灌注损伤中保护作用的研究

目的:探讨黄芪对大鼠肝脏缺血再灌注损伤的保护机制。方法:SD大鼠54只随机分为假手术组(SO组),缺血再灌注组(IR组)及黄芪给药组(AM组),制作常温下大鼠部分肝叶缺血再灌注损伤的模型。SO组大鼠游离肝十二指肠韧带,不阻断左肝血流,其余各组分别于再灌注30min、60min、120min3个时点取血、肝组织。测定各组血清天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)、乳酸脱氢酶(LDH)。测定肝组织髓过氧化物酶(MPO)的活性,应用免疫组化法测定肝组织中细胞间粘附分子-1(ICAM-1)的表达。结果:肝脏缺血再灌注后,IR组血浆AST、ALT、LDH水平,肝组织MPO活性、ICAM-1分子表达较SO组升高(P<0.05),AM组血浆AST、ALT、LDH水平,肝组织MPO活性、ICAM-1分子表达较IR组显著下降(P<0.05),且病理改变较轻。结论:黄芪对大鼠肝脏缺血再灌注损伤具有保护作用,肝缺血再灌注损伤时,肝血窦内皮细胞ICAM-1分子表达增加,由此介导中性粒细胞在局部聚集、活化可能是肝缺血再灌注损伤的基础。黄芪可以抑制中性粒细胞与内皮细胞的粘附,抑制中性粒细胞的聚集、活化,从而减轻肝脏缺血再灌注损伤。     

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.