^32P局部照射预防猪冠状动脉再狭窄研究

目的：评价^32P灌注球囊预防再狭窄的有效性、可行性和安全性。方法：对猪冠状动脉左前降支行过度球囊扩张术后,治疗组以^32P作血管内照射,对照组作假照射。术后35d收获目标血管、检测血管形态、细胞增殖百分比等。结果：治疗组血管腔面积较对照组明显增大（P＜0．01）,新生内膜面积、血管狭窄程度和各层PCNA阳性细胞明显减小（P均＜0．01）。结论：^31P灌注球囊照射预防冠状动脉再狭窄有效、安全而且可行。     

内外引流与生长抑素治疗十二指肠损伤临床分析

目的：探讨十二指肠损伤综合治疗的方法及结果。:8列十二指肠损伤采用单纯修补,肠腔内造口置管减压,外周双套管冲洗引流,抑制胃肠液分泌,以及TPN支持促使十二指肠损伤一期愈合。结果：8例病人全部治愈。结论：十二指肠损伤修补良好的内外环境、努力改善病人的内稳态对保证十二指肠损伤的愈合有着重要的意义。     

胰岛素泵治疗继发性失效2型糖尿病临床研究

目的 比较磺脲类药物失效（ｓｕｌｆｏｎｙｌｕｒｅａ ｆａｉｌｕｒｅ,ＳＦ）的 ２型糖尿病患者胰岛素泵连续皮下输注治疗（ｃｏｎｔｉｎｕ－ｏｕｓ　ｓｕｂｃｕｔａｎｅｏｕｓ　ｉｎｓｕｌｉｎ　ｉｎｆｕｓｉｏｎ,ＣＳⅡ）组和多次注射胰岛素组（ｍｕｌｔｉｐｌｅ ｓｕｂｃｕｔａｎｅｏｕｓ　ｉｎｓｕｌｉｎ　ｉｎｊｅｃｔｉｏｎ,ＭＳⅡ）血糖控制的疗效和安全性。方法 采用对照研究方法探讨ＣＳⅡ和ＭＳⅡ两种治疗方法在控制血糖、胰岛素剂量、低血糖的发生率的差异。结果 ＧＤⅡ组治疗达到理想血糖控制的疗效和所需的时间明显短于ＭＳⅡ组（Ｐ＜０．０１）;ＧＳⅡ组治疗达到理想血糖控制所需的胰岛素量明显少于ＭＳⅡ组（Ｐ＜０。０１）;ＣＳⅡ组低血糖发生率低于ＭＳⅡ组。结论ＣＳⅡ治疗能缩短达到理想血糖控制的时间,有效地降低餐后２小时血糖;减少了胰岛素用量;减少了低血糖的发生。囚此,ＣＳⅡ疗法对ＳＦ的２型糖尿病患者理想血搪控制比ＭＳⅡ疗法更快、更有效,且使用胰岛素剂量更小,更安全。     

端粒酶及nm23的表达与胃腺癌预后的关系探讨

目的 :探讨端粒酶和nm2 3癌基因蛋白表达与胃癌根治术后复发及预后的关系。方法 :采用端粒酶原位分子杂交技术及免疫组化S P法分别对 4 5例原发性胃腺癌组织中端粒酶的活性及nm2 3进行检测 ,并结合内镜及随访资料进行分析。结果 :胃腺癌端粒酶阳性表达率及nm2 3低表达率在有淋巴结转移组显著高于无淋巴结转移组 ;在术后 5年内复发者中显著高于无复发者。虽然随着胃腺癌分化程度的降低及浸润深度的增加 ,端粒酶活性及nm2 3低表达呈增强趋势 ,但其差异无统计学意义。结论 :胃腺癌组织中端粒酶的活性表达及nm2 3的低表达与淋巴结转移及术后复发显著相关 ,两者的表达变化对判断胃癌术后复发及预后判断有重要临床意义     

充血性心力衰竭病人甲状腺素水平的变化

目的　为探讨充血性心力衰竭 (CHF)患者甲状腺素水平及其与预后的关系。方法　观测了 2 5例CHF患者 (治疗组 )治疗前后及同期 3 0例健康体检者 (对照组 )血浆甲状腺激素水平的变化。结果　治疗组T3水平明显低于对照组 ,且治疗组T3水平随心功能的恶化而降低 ,随治疗好转而回升 ,而T4 则明显波动。结论　CHF患者心功能与T3浓度有密切关系 ,还可降低外周血管阻力 ,减轻心脏后负荷     

口腔固定修复学临床前期实习中的问题与对策

本文总结了北京大学口腔医学院3届八年制口腔医学专业学生口腔固定修复学临床前期实习教学的经验,针对实习中出现的典型问题进行了分析,采取了相应的对策和方法,取得了良好的效果.     

Long-term mortality of living kidney donors: a systematic review and meta-analysis

International Urology and Nephrology - To date, several studies have reported inconsistent findings regarding the mortality risk faced by living kidney donors and controls. Our study assessed the...     

Analysis of pharmacological mechanisms of Yinyanghuo as treatment of erectile dysfunction with network pharmacology-based strategy

Erectile dysfunction is considered an important health problem that impacts the quality of life of men. Yinyanghuo, also called Epimedium or Horny Goat Weed, is a frequently used Chinese traditional herbal medicine, commonly used in treating erectile dysfunction in China. A network pharmacology method was performed systematically, at a molecular level, to analyse the pharmacological mechanism of Yinyanghuo as erectile dysfunction therapy. The network pharmacology method used in this study primarily includes prescreening of the active compounds, prediction of targets, network analysis and gene enrichment analysis. This network analysis proved that 4 targets (AR, NR3C2, PDE5A and BMP2) could be the targets of Yinyanghuo therapy on erectile dysfunction. Besides, gene enrichment analysis predicted that Yinyanghuo might have a role in erectile dysfunction by regulating 10 molecular functions, 8 cellular components, 10 biological processes and 36 possible targets related to 10 signalling pathways. Our study demonstrated the molecular and pharmacological mechanisms of Yinyanghuo against erectile dysfunction with a holistic approach and demonstrated a powerful method for analysing pharmacological mechanisms and rational utilisation of Traditional Chinese Medicine clinically.     

Mechanism of Graft Damage Caused by NTPDase1-activated Macrophages in Acute Antibody-Mediated Rejection

ObjectivesTo investigate the effect and mechanism of macrophage activation and graft damage caused by nucleoside triphosphate diphosphohydrolase 1 (NTPDase1) in acute antibody-mediated rejection (AMR).MethodsAcute AMR was induced in different skin-grafted nude mouse models with wild-type NTPDase1 expression, transgene-enhanced NTPDase1 expression, or NTPDase1 gene knockout. Several methods (eg, real-time fluorescence quantitative polymerase chain reaction, high-performance liquid chromatography [HPLC], immunofluorescence, flow cytometry, and luciferin/luciferase assays) were used to study (at the histologic and molecular levels) the extracellular adenosine diphosphate (ADP) concentration, macrophage proliferation, major histocompatibility complex (MHC) class II antigen expression on the surface of macrophages, B-cell activating factor (BAFF) expression in the peripheral blood serum, and the total number of SmIg-positive B cells during acute AMR. The relative activity of NTPDase1 in B cells and epithelial cells, pathologic changes, and the incidence of positive C4d deposition around the capillaries of skin grafts on the different nude mice were studied.ResultsMacrophages proliferated significantly when acute AMR occurred. The higher the NTPDase1 expression level, the lower the extracellular ADP concentration, the expression of MHC class II antigens on the surface of macrophages, the expression of BAFF in the peripheral blood serum, and the total number of SmIg-positive B cells, indicating negative correlations. The relative activity of NTPDase1 in B cells and epithelial cells of the skin graft was different among the different mice. The higher the NTPDase1 expression level, the lower the degree of pathologic damage to the skin graft.ConclusionsImbalance in extracellular ADP degradation by NTPDase1 may promote macrophage activation, and activated macrophages may be an important cause of graft damage.     

补脾和胃泄浊法联合常规西药治疗早中期慢性肾功能不全脾虚湿盛证临床研究

目的：观察补脾和胃泄浊法治疗早中期慢性肾功能不全脾虚湿盛证的临床疗效。方法：选择94例早中期慢性肾功能不全患者,按随机数字表法分为对照组和观察组各47例。对照组给予常规西药治疗,观察组在对照组基础上给予补脾和胃泄浊法治疗。评价2组临床疗效,比较2组治疗前后中医证候评分、肾功能、肾血流变化、炎症因子水平及免疫功能。结果：观察组总有效率为89.36%,高于对照组72.34%(P<0.05)。治疗后,2组各项中医证候评分低于治疗前(P<0.05),且观察组各项中医证候评分低于对照组(P<0.05)。治疗后,2组血肌酐(SCr)、尿素氮(BUN)、胱抑素C (Cys-C)、β₂-微球蛋白(β₂-MG)、白细胞介素-6 (IL-6)、C-反应蛋白(CRP)及免疫球蛋白抗体G (IgG)水平较治疗前降低,且观察组低于对照组(P<0.05);2组肾小球滤过率(e GFR)、补体C3水平较治疗前升高,且观察组高于对照组(P<0.05)。治疗后,观察组平均灌注强度(Imix)、血流速度(Vmix)高于治疗前和对照组(P<0....