API2对黏膜相关淋巴瘤凋亡及凋亡相关蛋白的影响

目的：了解黏膜相关淋巴瘤的凋亡水平及其所涉及到的信号传导通路。方法：收集33例胃肠黏膜相关淋巴样组织(MALT)淋巴瘤病例，通过TUNEL技术原位检测MALT淋巴瘤肿瘤细胞的凋亡水平，通过逆转录聚合酶链反应(RT-PCR)和免疫组织化学染色检测肿瘤的凋亡抑制蛋白2编码基因(API2)和Caspase3 mRNA及蛋白，对API2和Caspase3水平作半定量和定量分析。根据凋亡检测结果将全部病例分为两组，即凋亡细胞数每50个高倍视野小于或等于2的病例组和大于2的病例组，比较2组的API2和Caspase3 mRNA及蛋白。结果：半数以上的MALT淋巴瘤中存在凋亡抑制；凋亡抑制的MALT淋巴瘤病例中API2 mRNA及蛋白水平明显高于没有明显凋亡抑制的病例，但Caspase3 mRNA及蛋白水平在两组病例中表达没有明显的差异。结论：MALT淋巴瘤中存在明显的凋亡抑制，其发生与凋亡抑制因子API2的表达上调有关，但API2对凋亡的调节与Caspase3有关的信号传导通路无明显相关。     

浅谈血液层流病房净化工程招标技术管理

1招标内容:血液层流病房净化工程,包括: 1.1血液层流病房净化工程范围: 1.2血液层流病房净化工程方案设计; 1.3血液层流病房净化工程设备、材料的供应与安装; 1.4血液层流病房净化工程施工组织; 1.5病房及辅助功能区内的配套设施的施工与安装.     

Appropriateness of hysterectomy in Taiwan.

BACKGROUND AND PURPOSE: Hysterectomy is among the most frequently performed surgical procedures in developed countries, but few studies from the Asia-Pacific region have assessed the appropriateness of hysterectomy. The purpose of this study was to examine the rate of inappropriate hysterectomy in Taiwan and its association with patient characteristics and indications for the procedure. METHODS: A random sample of hysterectomies for which claims were submitted to the Taiwan Bureau of National Health Insurance from July 1, 1997 to June 30, 1998 was selected. A total of 658 charts were reviewed by an expert panel composed of 5 senior gynecologists. RESULTS: Overall, 74.2% of patients underwent hysterectomy for appropriate reasons, 5.6% for uncertain reasons, and 20.2% for inappropriate reasons. Inappropriate procedures were positively associated with younger age and premenopausal status. Primary indications that accounted for over 25% of inappropriate procedures were chronic pelvic pain (42.9%), abnormal uterine bleeding (37.5%), and endometriosis (27.7%). CONCLUSIONS: This study found a high rate of inappropriate hysterectomy in Taiwan. Gynecologists and physician organizations should take action to improve physician agreement on the use of hysterectomy, especially for indications associated with high rates of inappropriate procedures.     

全喉切除改良气管-咽吻合Ⅰ期发声重建术

目的：探讨全喉切除Ⅰ期发声重建术的改进术式。方法：采用低位气管切开，全喉切除，食管前壁黏膜重建声门，气管切口处造瘘．颈段气管上提并缩窄吻合于舌根的方法行全喉切除及Ⅰ期发声重建木35例。结果：33例(94．29％）术后获得了不同程度的发声功能．不能发声者仅2例(5．71％)。全部患者术后均可经口进食，未出现严重的影响生存质量的误咽。结论：与以往的发声重建术相比，本术式具有发声成功率高、发声质量良好、误咽率低等优点，且无须置人人工发声装置．值得推广。     

Acupuncture Treatment for 34 Cases of Epiphora with Dysfunction of Lacrimal Duct

We have treated 34 cases of epiphora due to dysfunction of the lacrimal duct with a warm needle puncturing at the Jingming (UB 1) point. The effect was significantly better than that of the control group treated with lacrimal duct irrigation and norflaxacin eye drops (a total effective rate of 91.07% vs. 54.29%).     

影响α-淀粉酶分离液澄清度的因素

本文根据凝聚和絮凝原理,研究了无机盐和高分子絮凝剂加入量对枯草杆菌BF 7658α-淀粉酶分离液澄清度的影响。实验结果表明,氯化钙可使α-淀粉酶发酵液的ζ电位降低,分离液的澄清度增加,用氯化钙和磷酸氢二钠来处理发酵液,则其分离液的澄清度较单用氯化钙为大,阴离子型高分子絮凝剂如海藻酸钠加入量对分离液澄清度也有一定影响。实验中还发现,澄清的发酵液在10℃下贮存可保持澄清透明状态。     

应用心肌分层应变及做功技术评估长期腹膜透析尿毒症患者左心室功能

［摘要］目的： 利用心肌分层应变及心肌做功技术对长期腹膜透析的尿毒症患者的左心室功能进行研究,评估其在长期腹膜透析下的心功能变化。方法: 选择长期规律进行腹膜透析且经常规超声心动图检查提示左心室射血分数(left ventricular ejection fraction,LVEF)正常的尿毒症患者14例,测量其常规二维超声心动图参数,利用二维斑点追踪及心肌分层应变技术测量左心室整体纵向收缩期峰值应变(global longitudinal peak systolic strain,GLS)及内膜层、肌层和心外膜层3层心肌的纵向收缩期峰值应变(longitudinal peak systolic strain,LS),并结合血压得出左心室心肌整体做功参数,共同评估左心室心肌功能,随访5年并比较腹膜透析5年前后相关数据变化。结果: 规律腹膜透析5年后,尿毒症患者LVEF改变无统计学差异;GLS在四腔心切面明显减低(P=0.018),并从心内膜减低至心外膜(LS心内膜层 P=0.029,LS肌层 P=0.017,LS心外膜层 P=0.004);心肌整体做功参数以整体无用功(GWW)升高为主(P=0.048),整体有用功(GCW)、整体做功指数(GWI)及整体做功效率(GWE)无统计学差异。结论: 长期规律腹膜透析5年的尿毒症患者,其左心室整体心肌功能尚保持稳定,但局部心肌收缩功能进一步受损,主要体现在后间隔和侧壁的各层心肌,心肌做功以GWW升高为主。     

宫颈粘液过氧化物酶在月经周期中的变化规律

本文对29例月经周期正常妇女的宫颈粘液过氧化物酶进行了30个周期的研究。在月经周期不同时间测定宫颈粘液过氧化物酶(CMPx)活性及血清促黄体生成素(LH)、雌二醇(E_2)和孕酮(P)。结果表明:在排卵前三天酶活性明显下降,至排卵后一天开始上升。卵泡期,酶活性与E_2呈负相关(r=-0.67);黄体期,酶活性与P呈正相关(r=0.79)。本研究提示:1.CMPx在排卵周期具有特定的变化规律,其变化受体内激素水平影响,可作为预告排卵的指标。2.如简化测定方法,可为自然避孕提供新途径。