肉苁蓉炮制对微量元素含量及对动物体内DNA合成率的影响

对不同方法炮制的肉苁蓉进行了肝脾脱氧核糖核酸合成率以及金属微量元素的测定分析。结果表明,蒸制盐大芸对“阳虚”动物脱氧核糖核酸及微量元素锌、锰、铜、铁的含量均高于其他的传统炮制品。     

诊断超声对人胚胎安全性的研究

目的　探讨诊断级B超对人胚胎发育的安全性。方法　取 12 0名孕 6～ 8周拟行人工流产孕妇 ,随机分成正常对照组 (Ⅰ组 )、辐照 5min(Ⅱ组 )、10min(Ⅲ组 )、2 0min(Ⅳ组 )、30min(Ⅴ组 )于 1h内取绒毛 ,超声辐照 30min(Ⅵ组 )于 7～ 10d后取绒毛。检测绒毛的生物化学变化。结果　诊断剂量超声辐照 2 0min可致人体宫内绒毛发生生物化学变化。丙二醛 (MDA)值随超声剂量增加而升高 (PⅠ -Ⅲ >0 .0 5,PⅠ .Ⅳ <0 .0 1,PⅠ -Ⅴ <0 .0 1) ,而超氧化物歧化酶及谷胱甘肽过氧化物酶活性随超声辐照剂量增加而下降 (PⅠ -Ⅲ >0 .0 5,PⅠ -Ⅳ <0 .0 1,PⅠ -Ⅴ <0 .0 1)。对照组与Ⅵ组比较P >0 .0 5,提示损伤作用是可逆性的。结论　诊断超声辐照时间 2 0min以上时对绒毛可造成潜在危害     

COMBINED INTRAOPERATIVE ILIAC ARTERY STENTS AND FEMORO-POPLITEAL BYPASS FOR MULTILEVEL ATHEROSCLEROTIC OCCLUSIVE DISEASE

Objective. To review our preliminary experience and evaluate our early results of a combined intraopemtive iliac angioplasty and stenting with infrainguinal revascularization in multilevel atherosclerotic occlusive disease. Methods. From July 1999 to April 2000, intraoperative iliac angiOplasty and stenting combined with simultaneous femoro-pepliteal bypass were pedormed on 12 lower extremities of 10 patients suffering from multilevel athemsclemtic occlusive disease. There were 8 men and 2 women, average 72 years. The indicationsf or procedures included disabling claudication in 3 and rest pain in 7 patients. Results. Eleven iliac angioplasty and stem procedures combined with simultaneous 9 femoro-popliteal by-pass and 3 femoro-femoral-popliteal bypass were performed in 12 limbs of 10 patients. Angioplasty and stem placement was technically successful in all patients. One contralateral femoral-popliteal bypass was failure after femoro-femoral-popliteal bypass. There were no additional instances of procedural or postoperative morbidity or mortality. Mean follow-up was 5 months (range 1 -10 months). During the follow-up period, one femoro-infrapoplitealgraft became occluded after 7 months and above-knee amputation was required. The cumulative primary patencyrate of stented iliac arteries, femoro-femoral bypass grafts and femoro-popliteal bypass grafts were 100% (11/11), 100% (3/3) and 90. 9% (10/11) in the follow-up period, respectivdy. The amputation rate was 8. 3%(1/12). Conclusions. Intraoperative iliac artery PTA and stent placement can be safely and effectively pedormed simultaneously with infrainguinal revascularization for multilevel atherosclerotic occlusive disease by skilled vascular surgeon, using a portable C ann fluoroscopy in the operating room. Furthermore, iliac artery PTA and stenting was valuable adjunct to distal bypass either to improve inflow and outflow, or to reduce the extent of traditionalsurgical intervention, and also, any angioplasty and stenting-related complications can be immediately corrected as well.     

金银花水煎剂对绿脓杆菌P29株R质粒体内体外消除作用的实验研究

目的 :探讨金银花对绿脓杆菌 R质粒消除作用。方法 :体外试验　金银花水煎剂亚抑菌浓度作用绿脓杆菌 P2 948h后 ,影印培养 ,计数消除子 ;体内试验　建立肠道去污染小鼠动物模型后 ,经口感染绿脓杆菌 ,同时给金银花水煎剂 ,灌胃给药 ,2 mg/只 ,2 4 h后再次给药 ,剂量同上 ,48h后处死小鼠 ,分离培养细菌 ,计数消除子数。消除子经质粒抽提琼脂糖凝胶电泳鉴定。结果 :金银花水煎剂对绿脓杆菌 P2 9株 R质粒体外消除率为 0 ,体内消除率为 8%。结论 :金银花水煎剂对去污染小鼠感染绿脓杆菌 P2 9株 R质粒具有消除作用 ,消除子主要表现对单一抗生素恢复敏感性 ;体外没有消除 R质粒作用。     

卵巢癌的p53基因治疗实验研究——人野生型p53基因真核细胞表达质粒的构建

目的 :本实验构建了人野生型 p53基因与真核表达载体 pc DNA3的重组体 ,为进行卵巢癌基因治疗研究打下基础。方法 :利用分子生物学基因克隆技术从质粒 p GEX-p53中用双酶切下目的片段 ,挤压法回收与 pc DNA3构成重组体。结果 :成功的构建了人野生型 p53基因真核细胞表达质粒。结论 :带有两个不同的酶切位点的目的片段定向克隆的方法使重组体的构建高效简便 ,挤压法回收目的片段经济有效。     

^131I治疗分化型甲状腺癌的副作用的随访研究

为分析和评价＾１３１Ｉ治疗分化型甲状腺癌的副作用,对３４２例分化型甲状腺癌术后接受了＾１３１Ｉ治疗的患者进行了随访研究。服药后急性反应被记录;出院后定期随访血常规,肝肾功能,涎腺功能及有无与＾１３１Ｉ治疗相关的远期副反应。随访时间１～１０年,平均５．４年。结果：放射性甲状腺炎主要发生在吸＾１３１Ｉ率〉３０％的患者;放射性涎腺炎主要发生在吸＾１３１Ｉ率〈３０％的患者;常见的消化道反应：恶心１２．２％     

煤矿工人上消化道疾病的现况研究

目的：探讨煤矿工人上消化道疾病的患病现况,方法：按照整群随机抽样的方法在山东兖州,河北开滦,辽宁铁法选取３０６人,以胃镜进行普查。结果：矿区工人总的上消化道疾病患病率为７７．８％,以红斑性胃炎为主,占各种上消化道疾病的４１．５％井下采煤和掘进作业工人的患病率高于井下其他作业工人,后者的患病率与井上工人的患病率一致,各矿区之间,以山东兖州的工人患病率最高,湖北开滦最低。结论 煤矿工人上消化道疾病患病     

妊娠期糖尿病对妊娠结局的影响

目的研究GDM对母婴的影响。方法对112例GDM孕妇和112例健康孕妇的妊娠结局进行分析。采用11配对病例—对照研究,配对的条件是孕妇年龄相近(±2),同年同月同医院分娩。结果GDM孕妇手术分娩率、早产率、妊娠高血压综合征和巨大儿发生率都较对照组高。GDM的及早诊断和及时治疗可使巨大儿发生率降低。与新生儿病率有关的因素是GDM的严重程度、血糖控制情况及巨大儿。结论早期诊断GDM及控制血糖是减少妇婴并发症的关键。