骨形态发生蛋白-4对人始基卵泡的作用

【目的】观察骨形态发生蛋白-4（BMP-4）对人卵巢组织体外培养中始基卵泡存活和生长发育的影响。【方法】34例卵巢组织切成2mm×2mm×1mm皮质片，每例标本的皮质片均随机分成3组：研究组（BMP-4组）、对照组和非培养组，培养15d后行组织学检查、雌孕激素测定和凋亡分析。【结果】培养结束后对照组和研究组始基卵泡比例分别为58％±35％和48％±40％，低于非培养组（91％±9％），P〈0．05；窦前卵泡比例分别为52％±40％和42％±35％，高于非培养组（9％±9％），P〈0．05。研究组间质细胞凋亡指数和培养液孕激素浓度分别为（0．16±0．08）μg／L和（3．6±2．0）μg／L，低于对照组，对照组分别为（0．41±0．16）μg／L和（6±4）μg／L（P〈0．05）。【结论】BMP-4可以促进始基卵泡向窦前卵泡转化，降低细胞凋亡率，抑制孕激素分泌，是卵泡生长发育过程中的促进因子。     

影响宫腔内人工受精结局的因素分析

目的分析宫腔内人工受精妊娠结局的各种因素。方法收集1155个宫腔内人工受精周期，比较自然周期组和促排卵组的妊娠结局；按照处理前精子密度分为4组：精子密度≥40×10^6／mL；30×10^6／mL≤精子密度〈40×10^6／mL；20×10^6／mL≤精子密度〈30×10^6／mL；精子密度〈20×10^6／mL。比较4组间的妊娠结局；依据处理后每高倍视野精子数目分为两组：≥40条／HPF组和〈40条／HPF组，比较两组间妊娠结局。结果1155个周期共获得127例妊娠，妊娠率为11．0％。促排卵组妊娠率（13．91％）显著高于自然周期组（9．13％）。处理前精子密度〈20×10^6／mL组妊娠率明显低于其他各组；当该组处理后精子≥40条／HPF时，妊娠率（12.50％）较〈40条／HPF组（1.33％）显著增高。结论促排卵周期会提高宫腔内人工受精妊娠率；精子密度是影响宫腔内人工受精妊娠的关键因素之一。     

高效液相色谱法测定复方氨基葡萄糖咀嚼片中氨基葡萄糖的含量

目的建立高效液相色谱法，测定氨基葡萄糖咀嚼片中氨基葡萄糖的含量。方法以Hypersil C18（50mm×4．6mm，5μm）为色谱柱；以0．05mol·L^-1乙酸钠水溶液-甲醇（90：10）为流动相；UV检测波长340nm；流速1．0ml·min^-1。结果氨基葡萄糖在200—1600mg·L^-1范围内具有良好线性关系（r=0．9996），平均加样回收率为100．4％，（RSD）为1．0％（n=9）；3批样品的标示含量分别为99．5％、100．1％、99．4％。结论高效液相色谱法准确、灵敏，重现性好，可用于氨基葡萄糖咀嚼片的含量测定。     

小儿瑞芬太尼药代动力学研究

①目的计算小儿瑞芬太尼群体药代动力学参数并分析其药代动力学特点。②方法选择ASAⅠ-Ⅱ级择期全麻手术患儿60例，年龄1—12岁，全麻诱导时静注瑞芬太尼5μg／kg，于瑞芬太尼注射后1、2、3、5、7、10、15、20、25、30、45、60分钟分别采集动脉血1．0mL。采用液-液萃取毛细管气相色谱、质谱法测定瑞芬太尼血药浓度。③结果国人小儿瑞芬太尼血药浓度－时间曲线变化符合二房室模型，药代动力学参数：t1／2a：（1．5±0．4）min；t1／2B：（18±9）min;k21：0．12±0．05；k10：O．73±0．14；k12：0．23±0．06；Vd：（21．714-9．23）；LC1：（3．81±0．45）L／min。④结论国人小儿瑞芬太尼药代动力学符合二房室模型，消除半袁期和表观分布容积与成人明显不同，提示小儿与成人间瑞芬太尼群体药代动力学存在差异。     

三七总皂苷部分逆转黏附诱导的骨髓瘤细胞耐药性

目的：研究三七总皂苷（PNS）对骨髓瘤细胞RPMI8226黏附及黏附诱导耐药的影响．方法：采用MTT法检测PNS和／或阿霉素（Adr）对RPMI8226细胞的毒性作用；荧光染料二醋酸盐琥珀酰亚胺酯（CFSE）标记并流式细胞术检测RPMI8226细胞与纤连蛋白（FN）黏附率．结果：RPMI8226细胞与FN黏附2，12h，其黏附率分别为（55．63±1．56）％，（65．42±2．46）％；经亚细胞毒浓度PNS（50mg／L）预处理后，其黏附率分别降为（33．24±1．29）％，（34．16±1．59）％，处理前后差异有统计学意义（P〈0．05）；FN黏附12h后，瘤细胞对Adr的IC50值为（2．70±0．24）μmol／L，高于BSA对照组（2．03±0．13）μmol／L（P〈0．05），经PNS处理后FN组Adr IC50值降至（1．08±0．09）μmol／L，与BSA对照组（0．82±0．07）μmol／L相比无统计学差异（P〉0．05）．结论：PNS可降低RPMI8226细胞与FN的黏附率，并能部分逆转黏附介导的骨髓瘤耐药．     

2009年10月167例在校大学生流感早期血象变化

目的：分析流感早期血象变化特点,筛查甲流疑似病例。方法：对2009年10月167例在校大学生流感早期白细胞（WBC）、淋巴细胞绝对值（LY#）、中性粒细胞绝对值（NE#）的统计和构成比进行分析。结果：WBC4．0—10．0×10^9／L为152例（91％）;淋巴细胞绝对值（LY#）〈1．0×10^9／L 89例（53％）;中性粒细胞绝对值（NE#）3．0～6．9×10^9／L 129例（77％）,7．0×10^9／L以上32例（19％）．结论：LY#减少对筛查流感中的甲流疑似病例具有一定的临床参考价值。     

HPLC法测定抗增生胶囊中丹参素钠的含量

目的：建立抗增生胶囊中丹参素钠的HPLC测定方法。方法：采用Lichrospher E18色谱柱（250mm×4．6mm，5μm）；流动相为甲醇-0．9％乙酸（10：90）；流速为1．0ml／分：检测波长为280nm。结果：丹参素钠浓度在10～48μg／ml，浓度与峰面积线性关系良好（r=0．9997），平均回收率为97．7％，RSD为1．93％，。结论：所用方法简便准确、重现性好，为抗增生胶囊的质量控制提供了方法。     

酪氨酸激酶抑制剂抑制骨髓瘤细胞的增殖及黏附

目的 观察酪氨酸激酶抑制剂ST1571对骨髓瘤细胞系RPM18226细胞增殖、黏附以及黏附诱导耐药的影响。方法该试验采用MTT法检测ST1571对骨髓瘤细胞增殖的影响；流式细胞仪检测对细胞周期的影响；结晶紫染色法分析RPM18226细胞与纤连蛋白（fibronectin，FN）的黏附率；MTT法检测ST1571对瘤细胞耐药的影响；结果ST1571明显抑制KPM18226细胞的增殖，24、48和72hIC50值分别为（34．52±2．31）、（28．46±1．58）和（25．74±2．44）μmol／L。25μmol／L ST1571处理24h，G1期细胞由55．8％增加至72．4‰S期细胞由34．8％减至15．6％。KPM18226细胞与FN黏附1、6和12h，其黏附率分别为（43．71％±2．18％）、（55．63％±1．56％）和（63．42％±2．46％）；非抑制浓度ST1571（20μmol／L）处理1、6和12h后黏附率分别降为（15．12±1．04）％、（17．58±1．32）％和（17．24±1．59）％；组间差异有显著性（P〈0．05）；阿霉毒作用后，FN黏附组细胞IC50值[（1．46±O．04）μmol／L]显著高于BSA组[（0．78±0．03）μmol／L]（P〈0．05）；FN联合ST1571组IC50值[（0．81±0．05）μmol／L]与BSA联合ST1571组[（0．74±0．02）μmol／L]相比差异无显著性（P〉0．05），但却低于FN组（P〈0．05）。结论ST1571能抑制KPM18226细胞的增殖、并可降低KPM18226细胞与FN的黏附率及逆转黏附介导的阿霉素耐药。     

外源性一氧化氮对新生大鼠神经干细胞/前体细胞分化的影响

目的探讨外源性一氧化氮（NO）对培养状态下的新生大鼠神经干细胞／前体细胞（NSCs／NPs）分化的影响。方法采用常规方法分离新生大鼠脑室下带（SVZ）组织，进行NSCs／NPs体外培养。用二乙烯三胺／一氧化氮聚合物（DETA／NO）作为外源性NO供体培养NSCs／NPs。用免疫细胞化学方法检测NSCs／NPs标记巢蛋白（nestin）、神经元标记神经元特异性微管相关蛋13（Tuj-1）和星型胶质细胞标记胶质原纤维酸性蛋白（GFAP）。同时用Greiss还原法检测培养液中总NO的浓度。结果原代或次代培养的神经球均为nestin阳性；DETA/NO对体外培养的NSCs／NPs作用5d后，40μmol／L、50μmol/L、60μmol／L DETA／NO实验组分别释放出（62．0±6．4）μmol／L、（64．8±15．7）μmol／L、（68．5±11．6）μmol／L的NO，相应实验组分化的神经元数分别为（53．1±4．7）％、（54．1±6．9）％、（63．8±9．5）％，较对照组[（38．8±7．2）％]，显著增加，差异有高度统计学意义（P〈0．01）；50μmol／L、60μmol／L DETA/NO实验组分化的星型胶质细胞数分别为（38．2±6．7）％、（41±10．5）％，较对照组[（32．8±5．5）％]，有所增加，差异有统计学意义（P〈0．05）。结论外源性NO主要促进体外培养的NSCs／NPs向神经元方向分化。     

紫杉醇脂质体对子宫内膜癌HEC-1A细胞体外杀伤作用的研究

目的探讨注射用紫杉醇脂质体对人子宫内膜癌细胞系的体外杀伤作用。方法以0．01μmol／L、0．1μmol／L、1μmol／L、10μmol／L、100μmol／L浓度梯度的合注射用紫杉醇脂质体培养基作用于人子宫内膜癌细胞系HEC-1A细胞，并设对照（普通培养基），通过MTT、显微镜观察细胞形态、流式细胞分析技术检测该药对细胞生长的影响。结果经上述浓度紫杉醇脂质体作用48h后，细胞存活率下降；镜下观察显示部分细胞皱缩变形，崩解坏死，细胞脱壁悬浮；流式细胞结果显示细胞凋亡率逐渐增加，分别为（2．44±0．98）％、（7．30±2．11）％、（13．64±5．46）％、（15．26±9．73）％、（16．46±11．20）％、（25．61±12．32）％；细胞周期各时相中，S期比例减少。结论紫杉醇脂质体可抑制子宫内膜癌HEC-1A细胞的生长。     

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.