人膀胱癌裸鼠原位移植瘤动物模型的建立和MRI检测

Objective:To establish an orthotopic bladder cancer model bearing human bladder cancer for experimental research, and monitor tumor progression by magnetic resonance imaging (MRI). Methods: The mucosa was mechanically damaged transurethrally under direct vision, and then human bladder cancer cell line T24 was inoculated into the bladders of BALB/c nude mice to establish orthotopic bladder cancer model. To find a suitable concentration of Gd-DTPA for this research. MRI was performed weekly to assess tumor growth, using Gd-DTPA as contrast agent. The pathologic morphology of the bladders and other specimens were observed with HE stain. Results: All the 25 mice developed bladder cancer after inoculation. The best concentration of Gd-DTPAwas 1.408 mg/mL. On MRI, no change in the bladders was observed on day 7 after inoculation, filling defect in the bladders, accordant to actual tumor size, was detected on days 14, 21 and 28. Pathologic examination showed that tumor grew in the mucosa or superficial muscle of bladder on day 7, confined in muscle layer on days 14-28, and invaded serosa on day 35. Conclusion: Transurethrally damaged bladder mucosa under direct vision and instilled bladder cancer cell T24, we successfully established an orthotopic bladder cancer model. Tumor growth simulated the progression of human bladder cancer approximately. MRI was a reliable way for dynamic detection of murine orthotopic bladder tumor.     

HPLC法测定参芪片中天麻素的含量

目的:建立测定参芪片中天麻素含量的方法。方法:采用HPLC法,以C18为固定相,乙腈-0.05M磷酸溶液(3:97)为流动相,检测波长为220nm,流速为1ml/min。结果:天麻素在0.122μg-1.215μg范围内线性良好,平均回收率为99.45%,RSD=0.64%(n=6)。结论:所建方法可用于参芪片中天麻素的含量测定。     

External ventricular support in primary cardiogenic shock

Primary cardiogenic shock is a common condition with a high mortality rate. In this indication, mechanical assist plays an important part and has improved a lot over the last decade. The authors report their experience with the same assist device in patients with primary cardiogenic shock. Nineteen patients (9 dilated cardiomyopathies, 7 myocardial infarctions, 2 myocardities, 1 undetermined) were treated with an external mechanical ventricular assist device (Thoratec, Berkeley, U.S.). Fourteen patients received a biventricular assist and 5 had a uni-left ventricular assist device. Four of the 19 patients were completely weaned off their ventricular assist after 13, 27, 36 and 94 days, respectively. Ten patients underwent transplantation after an average of 43 days (range 8-95 days). Of the 19 patients, 7 had a portable console allowing autonomous ambulation. Five patients died under mechanical assistance (26.9%) and 3 patients died after transplantation. Three patients required temporary haemodialysis; 4 suffered embolic complications; 4 had mediastinal haemorrhages; 4 had bleeding from other sites, and 6 suffered from late tamponnade. Fourteen patients had at least one infectious episode. The authors conclude that, in patients referred for severe primary cardiogenic shock, the implantation of an external biventricular assist is a reliable option, allowing sequential weaning or being a bridge to transplantation in non-dependent patients, providing they are severely selected.     

消咳汤治疗感冒后干咳症81例

咳嗽是冬春季节的常见病、多因感冒而引起,常用止咳药与抗生素治疗,虽有一定效果,但有些患者外感症状解除后,咳嗽持久不愈,且多为干咳,伴有少量的粘痰,咽红干痒或痛而不适,舌苔薄白或薄黄,或稍厚或欠润,脉象正常.     

氮、磷、钾对益母草生长及水苏碱和总生物碱影响的研究

目的研究氮、磷、钾肥对益母草生长发育及次生代谢物的影响。方法采用大田试验与室内分析相结合的方法。结果益母草各项生长、产量及水苏碱和总生物碱的量基本均为复肥型高于单肥型，复肥型中又以营养平衡型大于营养失调型，但单施氮肥对以上各项指标均有很大促进作用。在复肥型中，足量磷元素与氮元素的合理配施可以提高氮的肥效。结论以益母草株高、叶片数、分蘖数、产量及水苏碱和总生物碱的量为评价标准，根据氮、磷、钾二次肥料数学模型的计算结果，确定最佳施肥量为：N：37．5～44．0g／m^2，P：37．4～54．3g／m^2，K：31．6～34．4g／m^2，氮、磷、钾的最佳配比为4：4．5：3．3。     

老年代谢综合征与瘦素水平的相关性分析

目的：本研究通过分析瘦素（Lep）与老年代谢综合征（MS）各构成组分的相关性，了解Lep在老年MS发生、发展中的作用。方法：入选符合国际糖尿病联盟（IDF）2005年MS诊断标准的老年MS患者76例。选与研究组年龄相匹配的正常对照组20剜。通过全自动生化分析仪获取入选者血糖和血日旨的指标；对入选者进行身高、体重、腰围及血压的测量；采用双抗体夹心ABC—EHSA法对入选者的血清Lep进行检测；采用BECKMAN ACCESS全自动化学发光仪测定胰岛素水平。结果：老年MS组血清Lep水平明显高于老年对照组[（5．23±2．15）ng／ml vs（2．24±1．95）ng／ml，P〈0．01]；老年MS肥胖组（BMI≥25kg／m^2）血清Lep水平明显高于MS非肥胖组（BMI〈25kg／m^2）[（5．67±2．25）ng/ml vs（4．58±1．85）ng／ml，P〈0．05]；老年MS患者血清Lep水平与BMI、SBP、FINS、及WC呈显著正相关，与HDL—C、ISI呈显著负相关；随着MS构成组分的增加，Lep及FINS水平显著升高，而ISI显著下降；结论：老年MS患者存在脂肪-胰岛内分泌轴的功能紊乱，老年MS患者同时存在胰岛素抵抗和Lep抵抗；高血压、肥胖及HDL-C下降在老年MS中占有重要地位．府强调对老年人进行毕活方式的干预并促讲血压、血脂的达标．     

四逆汤保护缺血心肌作用的实验研究

从自由基角度在小鼠垂体后叶素性心肌缺血模型上探讨四逆汤保护缺血心肌的可能机制。结果表明：四逆汤可降低缺血心肌的氧自由基（ＯＦＲ）浓度和丙二醛（ＭＤＡ）含量，增加营养血流量（ＮＢＦ）和超氧化物歧化酶（ＳＯＤ）活性。提示四逆汤保护缺血心肌是通过改善缺血心肌的灌流，减轻自由基损伤反应，加强自由基防御能力等多种机制实现的。     

肥厚性硬脊膜炎的诊断与治疗

肥厚性硬脊膜炎罕见，我院近年来收治２例，均经手术和病理证实。本病致瘫率高，预后差，临床表现不典型，容易误诊。复习国外有关文献，认为对无明显病因而发生脊髓压迫症，Ｘ线片上无异常改变者，应注意排除本病。脊髓造影和ＭＲＩ对本病的诊断颇有帮助。本病一旦确诊应及时手术治疗，以免脊髓发生不可逆的损害。     

回阳返本汤浸出工艺的合理性研究

以回阳返本汤为样本，研究中药复方浸出工艺的合理性。通过不同工艺路线浸出液多种指标成分的定性定量比较说明：对成分复杂的中药复方，宜根据药材成分及其理化性质设计工艺路线，视成分相互作用将药材分类提取，浸出溶剂可根据有效成分的不同溶解性质使用多种溶剂。     

体外培养大鼠白内障模型晶状体的早期生化改变

目的 进一步探讨白内障的发生机制。方法 采用器官培养方法,以不同浓度亚硒酸钠及半乳糖作用于晶状体,诱发大鼠晶状体形成白是,在培养初期测定晶状体内非蛋白质疏基（ｎｏｎｐｒｏｔｅｉｎｓｕｌｆｈｙｄｒｙｌ,ＮＰ－ＳＨ）、蛋白质疏基（ｐｒｏｔｅｉｎ ｓｕｌｆｈｙｄｒｙｌ,Ｐ－ＳＨ）和不溶性蛋白质二硫键的含量,脂类过氧化水平,以及与谷胱甘肽代谢有关的谷胱甘肽过氧化物酶（ＧＳＨ ｐｅｒｏｘｉｄａｓｅ,ＧＳＨ－