龈沟液ALP活性与牙周病的关系

对牙周健康者和龈炎、牙周炎患者２５人共１３０个牙位的龈沟液（ＧＣＦ）中硷性磷酸酶（ＡＬＰ）活性进行了检测。ＧＣＰ－ＡＬＰ活性（ｕ／ｕＬ或ｕ／牙）在炎症牙位和健康牙位间有显著差别，与牙龈指数（ＧＩ）和附着丧失（ＡＬ）呈正相关性。炎症牙位经牙周综合治疗６周后，其ＧＣＦ－ＡＬＰ活性显著降低。说明ＧＣＰ－ＡＬＰ水平能反映出牙周组织炎症的进展情况。     

新基因Tctex5在雄鼠生殖细胞中的表达

目的探讨雄鼠生殖细胞中是否有Tctex5基因的表达。方法从三株体外培养的雄鼠生殖细胞CRL-1715、CRL-2053和CRL-2196细胞株中提取总RNA和蛋白，采用RT-PCR和Western blot分别从mRNA和蛋白质水平分析基因产物的表达。结果Tctex5基因在CRL-1715、CRL-2053、CRL-2196三株细胞中都有高表达。结论Tctex5基因作为一个未知功能的基因，在雄鼠生殖细胞中有丰富的表达，可能参与了精子发生的功能调节，作为男性正常生育的。个新的标志物，它可能在精子发生中扮演了一个重要的角色，该基因在雄性生殖细胞中的发现可能会对男性不育的诊断与治疗提供新的途径。     

卵巢癌术后留置导管腹腔化疗的护理

目的:观察卵巢癌患者行肿瘤细胞减灭手术及术中留置腹腔导管化疗的疗效,评价其对生活质量的影响。方法1998年9月-2003年6月收50例卵巢癌患者在腹腔管及药物灌注方法上作些改进:即使瘤细胞减灭术后采用导管法(单管)仅进行单纯性腹腔化疗:应用顺铂或卡铂与5一氟脲嘧啶交替应有的PF方案联合化疗,非水化,术后一周内即开始腹化,出院后均在门诊每隔3—4周腹化一次。为期一年半左右,结果该方法治疗效果良好,化疗反应轻,无严重并发症,可门诊进行,经济易行,病人生存期生活质量高。     

我国“丝绸之路”地区异常血红蛋白的分布

对中国陕西，甘肃、新疆、宁夏古“丝绸之路”沿线２１５７８５人进行了异常血红蛋白的调查，检出６９５例携带者，发生率为３．２２‰，１２个民族的发生率为０．１５－１２．１７‰；分析２７１例异常血红蛋白的一级结构，发现２４种变异体，其中ａ链变异体３１３种，β链变异体１１种。ＨｂＪＴａｓｈｉｋｕｅｒｇａｎ和ＨｂＴｉａｎｓｈｕｉ为世界首次发现的异常血红蛋白。ＨｂＳ、ＨｂＢｕｎｂｕｒｙ、ＨｂＳｅｔｉｆ、ＨｂＩＰ     

Multifactorial Analysis of Prognostic Factors and Survival Rates Among 706 Mucosal Melanoma Patients

Background

The hypothesis that mucosal melanomas from different anatomic sites would have different prognostic features and survival outcome was tested in a multifactorial analysis.

Methods

Complete clinical and pathological information from 706 mucosal melanoma patients from different anatomical sites was compared for overall survival (OS) and prognostic factors.

Results

Mucosal melanomas arising from different anatomical sites did not have any significant differences in OS in a multivariate analysis (p?=?0.721). Among all 706 stage I–IV mucosal melanoma patients, depth of tumor invasion (p?<?0.001), number of lymph node metastases (p?<?0.001), and sites of distant metastases (p?<?0.001) were independent prognostic factors for OS; among 543 stage I–III patients, depth of tumor invasion (p?<?0.001) and number of lymph node metastases (p?<?0.001) were independent prognostic factors for OS; and among 547 stage IV patients, depth of tumor invasion (p?=?0.009), number of lymph node metastases (p?<?0.001), and combined distant metastases and elevation of serum lactate dehydrogenase (LDH; p?<?0.001) were independent prognostic factors for OS. The presence of c-KIT or BRAF mutations was not predictive of survival.

Conclusions

This is the first large-scale study comparing outcomes of mucosal melanomas from different anatomic sites in a multifactorial analysis. There were no significant survival differences among mucosal melanomas arising at different sites when matched for staging and prognostic and molecular factors, thus rejecting our hypothesis. We concluded that prognostic characteristics of mucosal melanomas can be staged as a single histological group, regardless of the anatomic site of the primary tumor.

     

应用重组人红细胞生成素注射液(宁红欣)治疗肾性贫血的多中心临床试验报告

目的 为进一步验证重组人红细胞生成素注射液(宁红欣)对肾性贫血的疗效,并观察可能出现的不良反应。方法 我们组织69家医院对1115例慢性肾衰肾性贫血患者进行了多中心临床研究,采用自身对照,应用皮下及静脉方式给药进行治疗。结果 完成试验疗程者共1079例,其中显效734例(68％);有效303例(28.1％);无效42例(3.89％);总有效率为96.1％。36例患者中途退出试验。宁红欣主要不良反应有血压升高、头痛等,多数不需停药即可好转。未发现严重不良反应。非透析治疗病例用药期间未见肾功能明显变化。结论 宁红欣治疗肾性贫血安全、有效,与Ⅱ期临床试验结果相似。     

Overexpression of dedicator of cytokinesis I (Dock180) in ovarian cancer correlated with aggressive phenotype and poor patient survival

Zhao F, Siu M K Y, Jiang L L, Tam K F, Ngan H Y S, Le X‐F, Wong O G W, Wong E S Y, Chan H Y & Cheung A N Y
(2011) Histopathology  59 , 1163–1172
Overexpression of dedicator of cytokinesis I (Dock180) in ovarian cancer correlated with aggressive phenotype and poor patient survival Aims: Dedicator of cytokinesis I (Dock180) is a novel guanine nucleotide exchange factor for Rho guanosine triphosphates (GTPases) important for cell migration. The aim of this study was to evaluate the role of Dock180 in ovarian carcinogenesis. Methods and results: Using immunohistochemistry, real‐time polymerase chain reaction and Western blotting, overexpression of Dock180 RNA and protein was demonstrated in the nucleus and cytoplasm of ovarian cancer cell lines (n = 5) and clinical samples of ovarian borderline tumours (n = 21) and invasive cancers (n = 108) when compared with ovarian epithelial cell lines (n = 3) and benign cystadenomas (n = 10) (P < 0.05). High Dock180 cytoplasmic expression in ovarian cancer (n = 108) was associated significantly with serous histological type, high‐grade cancer and advanced stage (P < 0.05), as well as poor overall and disease‐free survival (P = 0.004). Using multivariate progression analysis, high Dock180 cytoplasmic expression and advanced cancer stage were found to be independent prognostic factors for short overall survival and disease‐free survival (P < 0.05). Exogenous expression of Dock180 by transient transfection enhanced cancer cell migration and invasion, whereas knockdown of Dock180 by an siRNA approach retarded cancer cell migration and invasion in association with down‐regulation of matrix metalloproteinase 2. Conclusions: Our findings suggest that Dock180 contributes to ovarian carcinogenesis and dissemination and is a potential prognostic marker and therapeutic target.     

妊高征患者血浆一氧化氮变化的研究

探讨内源性血管舒张因子一氧化氮在妊高征发病中的作用。采用Ｇｒｅｉｓｓ方法及放射免疫法测定了３０例妊高征患者产前及产后外周血中，ＮＯ的稳定代谢产物亚硝 基／硝酸基（ＮＯ＾－２．ＮＯ＾－３）及环磷酸鸟苷含量，以３０例同期住院的正常晚期妊娠妇女作对照。     

小儿心脏手术麻醉期间空气混合氧(Fi020.5)改善气体交换

目的:100%O2常规用于麻醉前预先吸氧和麻醉诱导.吸高氧浓度更快地发生肺不张,一个重要的原因是全麻期间损害肺气体交换.我们用气管插管后0.5 FiO2混合空气和100%O2的通气效果,评价损害气体交换的发展过程.方法:102名年龄1月～15岁,先天性心脏病(非紫绀型)手术病人,均100%O2麻醉前预先吸氧3min和(麻醉诱导时)面罩通气2min,接下来气管插管.这些病人随机分为两组:Ⅰ组49例0.5FIO2和空气混合通气,Ⅱ组53例100%O2通气.分别于预先吸氧前和气管插管后30min、入ICU、拔管后30min、术后前三天做动脉血气分析,做记录接着计算PaO2/FiO2比值.结果用t检验和单相方差分析.P值＜或=0.05结果相差显著.结果:PCO2值入ICU(C)时CO2交换Ⅰ组明显优于Ⅱ组,PaO2术后在入ICU(C)60%FiO2、拔管后30min(D)1.5L/min FIO2面罩吸氧两个时间点动脉血氧Ⅰ组明显高于Ⅱ组,PaO2/FiO2值在插管后30min(B)、入ICU(C)60%FiO2、拔管后30min(D)Ⅰ组明显高于Ⅱ组(P值＜0.03).结论:先天性心脏病(非紫绀型)手术患儿全麻时,0.5 FiO2混合空气通气较100%O2通气能够显著的改善肺的气体交换功能.