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。     

肿瘤坏死因子与甲状腺细胞凋亡及相关蛋白的检测和表达的意义

目的　探讨肿瘤坏死因子 a(TNF a)诱导Graves病甲状腺细胞凋亡与相关蛋白表达在Graves病 (GD)发病关系中的意义。方法　采用免疫组织化学S P方法检测 5 0例Graves病患者TNF a,并检测对照组对Fas表达的影响。采用原代细胞培养方法进行细胞培养 ,细胞培养液中的sFas含量采用ELISA法检测。Fas/sFasmRNA检测采用半定量RT PCR法。结果　含有TNF aGD组细胞凋亡率为 92 6 % ,显著高于对照组的凋亡率 (36 0 % ) (P <0 0 1)。其含有TNF aGD组甲状腺细胞sFas、Fas/sFasmRNA含量与对照组比较差异有显著意义 (P <0 0 1)。结论　TNF a诱导Graves病甲状腺细胞凋亡及凋亡相关蛋白sFas、Fas/sFasmRNA有一定水平的表达 ,这些改变可能是TNF a破坏甲状腺细胞的重要机制之一。     

贫困家庭子女心理健康状况与对策研究

目的 了解贫困家庭子女心理健康状况。方法 利用中国人心理健康量表对2013名学生进行测量、统计和对比分析。结果 贫困家庭子女的总体平均分、各因子平均分以及中度症状的比例均高于非贫困家庭子女。结论 家庭经济状况是影响子女心理健康的一个重要因素，贫困家庭子女更需要心理卫生服务。     

采用改良McBride与Greer手术治疗严重(足母)外翻

目的探讨采用改良McBride与Greer手术(第1跖骨截骨术)治疗严重足母外翻的临床效果。方法采用改良McBride与Greer手术治疗严重足母外翻19例(32足)。术后根据足母外翻矫正情况进行评价。结果随访19例,时间为1.5个月~6年,所有患者术后外形明显改善,复发1足。结论采用改良McBride与Greer手术治疗严重足母外翻是一种安全、有效的治疗方法。     

新型纳米根管充填材料对成骨细胞生长的影响

通过体外培养的成骨细胞,采用二甲基噻唑二苯基四唑溴盐比色法和流式细胞术对新型纳米根管充填材料(nHA-PA66)作用下的成骨细胞生长情况的变化进行研究,评价其对成骨细胞生长的影响。以该材料的细胞培养基浸提液作用于实验组细胞,对照组采用培养基本身。实验组和对照组成骨细胞的生长情况和细胞周期无显著性差异,表明该新型纳米材料对成骨细胞的生长和细胞周期无不良影响。提示新型纳米根管充填材料的成骨细胞相容性较好,具有用作根充材料的基础。     

经腹及经阴道B超监测卵泡发育的评估

应用经腹及经阴道B超对68名不孕症妇女,139个月经周期进行卵泡发育及排卵监测。卵泡检出率TAUS为90.6％,TVUS为98.0％,显著高于前者,P<0.05。成熟卵泡特征影象(卵丘等)在TVUS显象率较高。TVUS监测卵泡发育更实用可靠。     

Survey of psychiatric disorders in a Taiwanese village population six months after a major earthquake.

BACKGROUND AND PURPOSE: The catastrophic Chi-Chi earthquake of September 21, 1999 in Taiwan provided a unique opportunity to study the disaster's psychiatric impact on survivors. This study assessed the development of psychiatric disorders among residents in a Taiwanese village near the epicenter of the earthquake within 6 months of the disaster. METHODS: A total of 442 of the 602 actual living residents of Tong-Chi village who were over 16 years of age and were present in the community at the time of the earthquake were included in this population survey. Subjects were interviewed by psychiatrists using the Mini-International Neuropsychiatric Interview and questionnaires to collect demographic information and risk factors for psychiatric disorders 4 to 6 months after the earthquake. RESULTS: The prevalence rates were 9.5% for current major depression, 2.8% for past major depressive episode, and 7.9% for post-traumatic stress disorder (PTSD). Females had significantly higher rates of most psychiatric disorders. After controlling for covariates, the significant risk factors for PTSD were female gender and having sought medical service after the earthquake. Significant risk factors for major depressive episode were divorced/widowed status, education level equal to or below primary school, and prominent house damage. CONCLUSION: This population survey of earthquake disaster survivors found an increased prevalence of psychiatric disorders after exposure to a catastrophic earthquake. These results highlight the need for prompt therapeutic attention to residents of earthquake disaster areas after the event.     

Anterior mediastinal immature teratoma with precocious puberty in a child with Klinefelter syndrome.

ABSTRACT: Klinefelter syndrome occurs in approximately 1 in 1000 males. A 4-year-old boy presented with precocious puberty and an anterior mediastinal mass. Serum alpha-fetoprotein and human chorionic gonadotropin levels were mildly increased. Computed tomography revealed a germ cell tumor (GCT) of the mediastinum. Complete resection of the tumor was performed. Histologic analysis revealed an immature teratoma. Males with Klinefelter syndrome develop GCTs at a rate 50 times higher than unaffected males. This case report calls attention to the need to rule out Klinefelter syndrome in boys who present with precocious puberty and a mediastinal GCT.     

核磁共振法测定非离子表面活性剂 HLB 值的研究 2.几种混合体系 HLB 值的测定与计算

本文应用核磁共振法(NMR)测定了几种混合体系的 HLB 值与混合体系中各组分的 HLB 值。实验结果表明,混合体系中各组分在核磁共振图谱中的积分曲线高度也具有加和性。混合体系的 HLB 值是体系中各组分 HLB 值的加权平均值。因此,对混合体系的 HLB 值可以应用 NMR 法直接测定,也可应用 NMR 法测定各组分的 HLB值,通过计算求得,计算值与实测值完全一致。