董梦久教授分期辨证治疗更年期失眠的经验

失眠,中医称为"不寐",亦称"不得卧"、"不得眠"、"目不瞑"等,病位在心,又与肝、脾、肾有密切关系.更年期失眠患者症状则更为严重,临床以顽固性失眠多见,董梦久教授采用分阶段辨证治疗更年期失眠患者,多取得较好效果.     

中西医结合治疗再生障碍性贫血20例

目的 研究化血汤治疗慢性再生障碍性贫血的疗效及机制方法 将36例再障患者分为化血汤配合西药治疗组(治疗组,20例)和单纯西药治疗组(对照组,16例),分别观察其临床疗效及治疗前后患者外周血清造血抑制活性和诱导细胞凋亡活性的变化情况.结摹治疗组总有效率85.0%,明显高于对照组56.3%(P<0.05).再障患者经有效治疗后其外周血清的造血抑制活性和凋亡诱导活性明显降低,加服化血汤可增强此种作用结论 化血汤配合西药治疗慢性再障效果明显优于单纯西药治疗组.通过降低再障患者血清造血抑制活性从而改善骨髓造血功能可能是化血汤治疗再障的药理机制之一.     

针灸对衰老神经免疫内分泌网络的研究现况及思考

当代生物科学与技术正突飞猛进的发展,在此过程中神经内分秘系统与免疫系统之间的相互作用逐渐引起人们的极大重视。1977年,Base dovsky提出神经内分泌免疫(NEI)网络学说,认为神经内分泌系统与免疫系统之间存在完整的功能性调节环路。大量的研究表明,神经内分泌系统与免疫系统可以共用细胞因子、肽类激素和神经递质并产生广泛而密切的网络联系;在这个网络中,神经内分泌激素能调控免疫,而免疫亦能调控神经内分泌。因此神经内分泌免疫调节网络的失衡可加速衰老的进程。近年来,针灸在此方面作了大量研究,兹综述如下。1针灸对衰老免疫的影响衰…     

反义核酸对癌基因C-myc和N-ras蛋白表达的影响

目的为了研制新型的抗肝癌药物,观察了反义寡核苷酸对整合乙型肝炎病毒(HBV)的肝癌细胞基因治疗的作用.方法设计合成针对HBVPreS2基因翻译起始位点的反义寡核苷酸(ASON),并设非互补序列作对照,选择2.2.15细胞为细胞模型,ASON以10μmol/L浓度用药,用ELISA法观察了细胞培养上清液中HBsAg和HBeAg的变化,MTT法检测ASON对细胞的毒性作用,放射免疫方法检测细胞培养上清液中血清铁蛋白浓度.免疫细胞化学染色检测ASON对癌基因C-myc和N-ras蛋白表达的影响.结果ASON能有效地抑制HBV抗原表达,对HBsAg和HBeAg的抑制率分别为66%和91%.而ASON以20μmol/L或40μmol/L浓度用药4天对宿主细胞无毒性作用,ASON以10μmol/L浓度用药后第二天用药组和对照组血清铁蛋白浓度分别为(28.26士0.02)μg/L和(28.14土0.02)μg/L,两者相比差异无显著性(P＞0.05).用药后第3天C-myc和N-ras蛋白表达降低,和对照组相比差异有显著性(P＜0.05).结论该段反义寡核苷酸不仅抑制HBV抗原表达,而且抑制肝癌细胞的恶性表型而对宿主细胞无毒性,有可能成为有前途的抗肝细胞肝癌新药.     

川崎病患儿血清基质金属蛋白酶-1表达的意义

目的 探讨基质金属蛋白酶-1(MMP-1)在川崎病(KD)患儿冠状动脉损伤中的作用.方法 选择KD患儿36例(其中无冠状动脉损伤组15例,冠状动脉损伤组21例),按病程分为急性期、亚急性期和恢复期;10例健康儿童为健康对照组.应用酶联免疫吸附法检测其血清MMP-1蛋白水平.结果 KD急性期患儿血清MMP-1水平明显高于健康对照组(Pa＜0.01),且冠状动脉损伤组较无冠状动脉损伤组升高更显著(P＜0.05);亚急性期、恢复期其MMP-1水平明显降低(各期间比较Pa＜0.01).KD组急性期血清MMP-1水平与外周血白细胞计数呈显著正相关(r＝0.791 P＜0.01).结论 检测血清MMP-1水平对预测和早期诊断KD并冠状动脉病变具有重要意义.     

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.