183例老年人骨密度检测分析

目的 :研究老年人不同疾病时骨密度 (BMD)的分布情况。方法 :用DXADAS 6 0 0EX型骨密度仪对183例老年患者进行左侧远程桡骨加尺骨BMD检测。结果 :内分泌疾病组、消化道疾病组和其它疾病组的患病率分别为 72 7% ,2 0 6 %和 31 4 %。T值比较 :三组差异明显 (P <0 0 0 1)。累积骨丢失率 (ABLR)比较 :前一组明显高于后两组病人 (P <0 0 1)。BMD比较中 ,内分泌和其它疾病组明显低于消化道疾病组 (P <0 0 0 1)。相关分析显示 ,内分泌和消化道疾病组的年龄变化与BMD呈正相关 (r =0 5 19P <0 0 0 1和r =0 5 89P <0 0 0 1) ,内分泌疾病组和其它疾病组的体重变化与BMD呈正相关 (r=0 918P <0 0 0 1和r =0 338P <0 0 0 1)。结论 :老年人骨质疏松 (OP)患病率以内分泌疾病组最高 ,消化道疾病组较低 ;随年龄和体重增加 ,BMD降低加重。     

经T管窦道网篮取石治疗胆道残余结石

目的：采用非手术方法治疗胆道残余结石，方法：应用介入方法经T管窦道网蓝取石，结果：治疗39例。取得了满意的疗效。成功率达92．3％，结论：经T管窦道网蓝取石治疗胆道残余结石，是一种简便，安全、有效的治疗方法。     

单能量X线测定骨密度的初步分析

目的：了解温州地区人群不同年龄组骨质疏松患病率及同年龄组男女骨质疏松患病的差异，强调早期预防治疗老年人及绝经期妇女骨质疏松的重要性，方法：应用单能量X线（SXA）骨密度仪测量246例正常人的右跟骨骨密度，结果：男性大于60岁组较小于60岁组骨密度（BMD）降低明显（P＜0．05）；女性50岁以上组与小于50岁组相比，BMD下降差异有极显性（P＜0．01）；各年龄组男女相比，男性BMD明显高于女性（P＜0．05）。结论：女性骨质疏松症的发病大多以绝经后为主，雌激素在维持骨量方面具有重要的作用。SXA检测的跟骨含95％小梁骨，能较好地确定骨质疏松的风险水平，且其具有价廉、简便，快捷，较准确等特点，故不失为一种较好的临床筛查手段。     

Effects of Platelet Factor 4 on Expression of Bone Marrow Heparan Sulfate in Syngenic Bone Marrow Transplantation Mice

Platelet factor 4 ( PF4) is a negativehematopoietic factor.It can inhibit the prolifera-tion of endothelial cells and hematopoietic stem/progenitor cells,particularly megakaryoryocyticcells,reversibly[1] ,inhibit DNA synthesis,blockcell cycle progression during S phase and reducethe sensibility of normal hematopoietic stem/pro-genitor cells,but not some cancer or leukemia celllines,to cytotoxic drugs and ionizing radia-tion[2 - 3] ,and it also can cause a population in-crease of the stem cel…     

齿槽裂修复方法的研究进展

目的 探讨齿槽裂修复治疗的目的、方法以及治疗时机的选择。方法 查阅1950年至2006年有关齿槽裂修复的文献，归纳文献中报道的不同方法，并评价其各自的优缺点。结果 齿槽裂修复的主要目的：关闭口鼻瘘；建立稳定、连续的上颌骨牙弓；为牙齿萌出提供基础；为上唇和鼻底提供稳定支架。主要治疗方法：植骨术；牵引成骨技术；组织工程骨和生长因子应用；引导骨再生技术。患者最佳的手术治疗时机是9～11岁时混合牙列期。结论 在9～11岁混合牙列期手术，以髂骨松质骨为移植材料被认为是修复齿槽裂的主要手段。牵引成骨技术、组织工程技术和引导骨再生技术，将是齿槽裂修复的新方向。     

Risk behaviors and its association with caries activity and dental caries in Japanese children

The aim of this study was to assess risk behaviors and its association with caries activity and dental caries in Japanese children. The subjects were 392 young Japanese children who underwent dental health check-up at 18, 30 and 42 months of age. Oral examinations, Cariostat tests and dental health questionnaires were carried out at each time. The caries prevalence of children was 1.5% at 18 months, 9.9% at 30 months and 28.1% at 42 months. Caries activity based on the Cariostat scores of children was correlated with caries status (caries-free/carious) at 42 months. In children with caries during each examination period at 42 months, eating snacks while playing was ranked as the most important behavioral risk (P < 0.001), followed by breast-feeding (P < 0.01), non setting of time for snacks (P < 0.05) and frequency of snacks (P < 0.05) at 18 months old; non brushing by mother (P < 0.05) and eating snacks while playing (P < 0.05) were ranked highest at 30 months old. In addition, eating snacks while playing (P < 0.001) at 42 months old was the only a significant factor for children with caries. Caries activity and risk behaviors were associated with caries experience at different age periods of childhood.     

室间隔夹层瘤的超声诊断(附4例报告)

目的 总结室间隔夹层瘤的超声心动图诊断及临床应用价值。方法1985～2005年超声诊断罕见的室间隔夹层瘤4例。超声主要取左室长轴、四腔心、五腔心、大动脉短轴及非标准切面，观察主动脉窦的形态及结构：如扩张窦瘤的大小、窦壁厚度、窦瘤破口的部位、窦瘤破口与室间隔之间的关系，主动脉窦瘤与室间隔夹层瘤之间交通口的大小，测量形成室间隔夹层瘤的大小及夹层瘤左、右室面的厚度，结合彩色多普勒观察心动周期夹层瘤与主动脉窦瘤血流动态变化，频谱多普勒测量窦瘤与室间隔夹层瘤之间的血流速度。结果4例室间隔夹层瘤均为主动脉右窦破人室间隔基底段，且均行手术治疗证实超声诊断。结论超声心动图对室间隔夹层瘤可直接做出诊断，超声诊断价值在于早发现、早诊断、及早治疗，并可为外科选择手术方式提供重要的有价值的依据。