动脉支架放置术前白细胞计数与锁骨下动脉支架远期通畅率的观察

Objective To study relationship between preprocedural white blood cell count(WBC) and long-term patency of stent implanted in the subelavian artery.Methods Data of 113 cases with stents implanted in the atherosclerotic SUbclavian arteries in Anzhen Hospital,Beijing during January 2005 to January 2008 were analyzed.Student t-test was used to compare the difierence in WBC count between those with patency and those with stenosis after the procedure and chi-square test was used to compare the difference in stent pateney between those with higher and lower WBC counts.Results There Was significant difference in WBC counts between 102 cases with patency and 11 cases with stenosis of the stents after implantation(t=-5.051.P<0.001).Percentage of patency ofthe stents in 36 cases witll higher WBC count(>7.195×109/L)was significantly higher than that in 77 cases with lower WBC count(≤7.195× 109/L)before the procedure(P=0.001).Among 113 cases with stents implanted,109 cases(96.5%) could keep their stents patent one year after implantation,and 60 cases(89.6%)could keep stents patent three yeats after implantation.Conclusions In addition to those traditional factors associated with long-term patency of stents after their implantation,inereased WBC count alSO associated with stenosis or occlusion of the stents after the procedure.     

胰岛素抵抗对2型糖尿病患者血管内皮舒张功能的影响

目的 评价2型糖尿病患者的血管内皮舒张功能,探讨胰岛素抵抗(IR)对血管内皮功能的影响.方法 2型糖尿病患者分为IR组(24例)和非IR组(21例),另设正常对照组(30例).采用高分辨率超声检测肱动脉内皮依赖性和非依赖性舒张反应(EDD,EID).测定空腹血糖(FBG)、空腹胰岛素(FINS)及一氧化氮(NO),并采用稳态模式法计算胰岛素抵抗指数(HOMA-IR).结果 IR组和非IR组糖尿病患者的EDD、EID、NO均明显低于对照组(P＜0.01),IR组的EDD、EID、NO明显低于非IR组(P＜0.01).结论 2型糖尿病患者的内皮依赖性和非依赖性舒张功能均有受损,胰岛素抵抗是导致损害加重的高度危险因素.     

穿心莲超分子提取物的抗炎作用研究

目的：研究穿心莲超分子提取物的抗炎作用。方法：观察穿心莲超分子提取物对蛋清诱发大鼠足跖肿胀、对棉球所致大鼠皮下肉芽肿以及对二甲苯引起小鼠耳肿胀的抑制作用，并采用穿心莲内酯作阳性对照。结果：穿心莲超分子提取物对上述三种方法所致的炎症有一定的抑制作用，和阳性对照纽比较无显著差异。结论：穿心莲超分子提取物具有较好的抗炎作用。     

Culture and purification of human fetal olfactory ensheathing cells using different attachment rates combined with intermittent NT3 nutrition

Objective：To explore a simple and pragmatic method to obtain sufficient olfactory ensheathing cells from human fetus by selective attachment of harvested cells combined with intermittent NT3 nutrition. Methods：DMEM/F12 culture solution including 10% fetal bovine serum or NT3 was used to culture olfactory ensheathing cells intermittently every 48 h. The cell state and growth rates of OECs were observed, and P75 staining was used to estimate the purity of the cells. Results：Human fetal OECs were positive with P75 immunocytochemical staining. OECs in dipolar or tripolar shape formed networks by their processes in vitro. The purity of OECs in ＂good state＂ was about 95% at 9 d and 83% on 12 d, respectively. Conclusion：The method of using different attachment rates combined with intermittent NT3 addition is a simple and effective way to culture and purify OECs.     

Clinical experimental study of Arnebia Root oil in increasing FGF expression and promoting wound surface healing

Objective：To investigate the effection of Arnebia Root oil on the FGF expression in wound surface and the ability to promote wound surface healing. Methods：24 wound surfaces of patients were divided into two groups. Experimental group was treated by Arnebia Root oil and the control was treated by petrolatum gauze. Histology, histochemistry, electron microscope methods and healing rate measurement were used to show the FGF expression and wound healing process. Results：Endogenous FGF were expressed in both of the groups, in which of the experimental group was higher than that of the control group, the wound surface healing rate of experimental group was also higher and paralleled with FGF expression. Conclusion：Arnebia Root oil has effects to promote FGF expression and enhances wound surface repair. The wound healing mechanism between the action of Arnebia Root oil and function of FGF need further investigating.     

27例子宫肌瘤变性临床分析

目的探讨子宫肌瘤的临床特征及诊疗。方法对经病理检查证实为子宫肌瘤变性患者27例的临床资料进行回顾性分析。结果变性的子宫肌瘤与非变性的子宫肌瘤的临床表现极为相似（红色变性除外），其症状与肿瘤生长部位及大小有关。结论变性子宫肌瘤的特殊临床症状，结合超声检查的声像图分析，总结出子宫肌瘤变性的诊断要点及手术方法，提高了子宫肌瘤变性的诊断率和治疗效果。     

贝那普利联合氯沙坦对环孢素A致大鼠慢性肾毒性的防治作用

目的:探讨贝那普利和氯沙坦防治环孢素A(CsA)慢性肾毒性的疗效及作用机制.方法:50只SD大鼠随机分为对照组、模型组、贝那普利组、氯沙坦组、联合用药组,每组10只.低盐饲料饲养,以CsA 15 mg/(kg·d)皮下注射造模,贝那普利组、氯沙坦组、联合用药组分别以单用贝那普利、氯沙坦及两者联用灌胃治疗,对照组和模型组以同体积生理盐水灌胃.于第4周末处死动物,取肾脏作肾组织血管紧张素Ⅱ(AngⅡ)含量测定,Masson染色检测肾脏纤维化,免疫组织化学方法检测生长转化因子-β1(TGF-β1)和胶原Ⅲ(ColⅢ)的表达情况.结果:与对照组相比,模型组的肾组织AngⅡ含量、间质纤维化程度、TGF-β1、ColⅢ明显升高;单药治疗组间质纤维化程度、TGF-β1、ColⅢ较模型组均有所下降,联合用药组低于单药治疗组,差异均有统计学意义(P＜0.05).结论:贝那普利和氯沙坦可能是通过下调TGF-β1,抑制ColⅢ表达,从而延缓CsA大鼠肾间质纤维化进展.两者联合应用,疗效更显著.     

固相萃取-高效液相色谱法测定血浆中尼莫地平

目的:建立一快速、灵敏的尼莫地平(NM)血药测定方法,并将其应用于NM片生物利用度的研究.方法:以尼群地平为内标,采用固相萃取的HPLC分析法.取样1.0ml.志愿者双交叉po测试品或对照品120mg.用三因素方差分析和双单侧检验其药物动力学参数.结果:NM最低检测浓度为2.00ng/ml,最低检测量为1.00ng.线性范围为5～300ng/ml.方法回收率均接近100%,RSD<5%,日内、日间重现性均<8%.结论:本分析方法快速、灵敏.重现性好.符台NM片剂生物利用度研究的要求.双单侧检验表明两种NM片剂不等效.测试品的相对生物利用度约为对照品的141.8%.     

金黄色葡萄球菌稳定L型的鉴定及其应用

目的 鉴定从一例恶性淋巴瘤患者骨髓中三次分离出的稳定L型。方法 对此菌株进行了生物学性状观察,免疫细胞化学染色及DNA酶切图谱分析,并以该菌株DNA制备探针,用原位杂交法检测了宫颈癌和子宫内膜癌的组织切片。结果 证实该菌株是金黄色葡萄球菌L型,此探针能检出肿瘤组织中的金葡菌L型DNA。结论 从该恶性淋巴瘤患者骨髓中分离的系金葡菌L型,L型可能与肿瘤有关。     

高原健康人与高原红细胞增多症患者血浆EPO含量分析

目的：通过高原人血浆EPO测定,探索高原红细胞增多症（HAPC）的发病机理。方法：采用酶标法规定111例血浆EPO。结果：藏族健康者36例,EPO均值为6．13mlU／ml;汉族健康者36例,均值为10．69mlU／ml;藏族HAPC20例,均值为13．06mlU／ml;汉族HAOC19例均值为61．24mlU／ml。结果提示：汉族无论健康组还是HAPC病人组都高于藏族;且HAPC病人EPO含量高于健康者。结论：在高原低氧环境下,EPO增加可使RBC增多,从而引起HAPC,但这不是唯一的因素,有关调控机制正在进行深入研究。