HIF1α和XRCC4在肺癌肿瘤及癌周组织中的表达

目的:探讨HIF1α和XRCC4的mRNA在肺癌肿瘤及患者正常组织中的表达是否能够预测患者的预后情况。方法:对接受了根治性手术和术后放疗29例非小细胞肺癌患者,应用实时荧光PCR方法测量目标基因在肿瘤及癌周正常组织的冷冻标本表达。结果:肿瘤组织HIF1α高表达组,患者无病生存与低表达组无统计学差异;而在癌周正常组织中HIF1α低表达患者的中位无病生存(26个月)明显长于高表达组(10个月)且有统计学差异(P=0.028);HIF1α的肿瘤/正常组织比值也能作为患者的预后因素。XRCC4在肿瘤、正常组织中的表达与预后无相关。结论:HIF1α在肺癌患者瘤周正常组织中的表达情况,肿瘤/正常组织的表达比值与患者的预后相关。     

FH clinical phenotype in Greek patients with LDL-R defective vs. negative mutations

BACKGROUND: Familial hypercholesterolaemia (FH) is caused by mutations in the low-density lipoprotein receptor gene and the gene encoding apolipoprotein B-100, affecting one in 500 individuals. METHODS: One hundred and eighty-three Greek FH patients were screened for mutations on the LDLR and ApoB genes. RESULTS: We identified mutations in 67 probands and 11 relatives. Sixteen mutations located in eight different exons and the promoter of the LDLR were discovered. Among them 10 were missense mutations (C6W, S265R, A370T, Q363P, D365E, V408M, A410T, A517T, G528D, G571E), two were nonsense mutations (Q363X and C660X), three were splice defects (2140 + 5G-->A and 2140 + 9C-->T, 1706 - 10G-->A), and one was a nucleotide substitution (- 45delT) on the promoter. None of the subjects carried any apoB mutation. The detection rate of mutations in this study was 43%. From the above mutations, A410T, A519T and the splice site defects 2140 + 9C-->T were detected for the first time in the Greek population. Among them V408M, G528D, C6W and S265R account for 73% of heterozygous FH probands. V408M mutation is more common in Central West, while C6W is more common in Central East. Separating the patients into two groups (receptor defective and receptor negative) we found that the receptor negative group had higher levels of total cholesterol, low-density lipoprotein cholesterol and higher prevalence of tendon xanthomas compared with the receptor-defective group. DISCUSSION: The homogenous molecular basis of familial hypercholesterolaemia in Greece facilitates the application of a DNA diagnostic strategy based on the origin of the patient. The early mutation analysis would add valuable information on the severity of the disease.     

早期帕金森病患者项目记忆及源记忆能力的研究

目的研究早期帕金森病(PD)患者项目记忆及源记忆的特点。方法对25例早期PD患者(PD组)及25名健康对照者(正常对照组)进行MMSE、词汇流畅性测试(VFT)、数字广度(DS)、stroop色词试验、听觉词汇学习测试(AVLT)以及项目记忆、源记忆检查,并进行比较。结果 PD组和正常对照组MMSE、VFT、DS、stroop色词试验差异无统计学意义(均P0.05)。与正常对照组比较,PD组AVLT即刻回忆评分显著降低(P0.05),延迟回忆评分差异无统计学意义(P0.05)。与正常对照组比较,PD组源记忆正确度显著降低(t=-2.800,P0.05),记忆区别度差异无统计学意义(t=-1.462,P0.05)。结论早期PD患者的情景记忆障碍主要表现为源记忆障碍,项目记忆却相对保留,可能与其额叶功能损害有关。     

2009年安徽省药品生产企业GMP认证缺陷项目分析

该文通过对2009年我省药品生产企业GMP认证现场检查中出现的主要缺陷项目进行分析,找出该省药品生产企业实施GMP的薄弱环节,为进一步加强GMP技术监督提供建议。     

Evaluation of a computer‐adaptive test for the assessment of depression (D‐CAT) in clinical application

In the past, a German Computerized Adaptive Test, based on Item Response Theory (IRT), was developed for purposes of assessing the construct depression [Computer‐adaptive test for depression (D‐CAT)]. This study aims at testing the feasibility and validity of the real computer‐adaptive application. The D‐CAT, supplied by a bank of 64 items, was administered on personal digital assistants (PDAs) to 423 consecutive patients suffering from psychosomatic and other medical conditions (78 with depression). Items were adaptively administered until a predetermined reliability (r ≥ 0.90) was attained. For validation purposes, the Hospital Anxiety and Depression Scale (HADS), the Centre for Epidemiological Studies Depression (CES‐D) scale, and the Beck Depression Inventory (BDI) were administered. Another sample of 114 patients was evaluated using standardized diagnostic interviews [Composite International Diagnostic Interview (CIDI)]. The D‐CAT was quickly completed (mean 74 seconds), well accepted by the patients and reliable after an average administration of only six items. In 95% of the cases, 10 items or less were needed for a reliable score estimate. Correlations between the D‐CAT and the HADS, CES‐D, and BDI ranged between r = 0.68 and r = 0.77. The D‐CAT distinguished between diagnostic groups as well as established questionnaires do. The D‐CAT proved an efficient, well accepted and reliable tool. Discriminative power was comparable to other depression measures, whereby the CAT is shorter and more precise. Item usage raises questions of balancing the item selection for content in the future. Copyright © 2009 John Wiley & Sons, Ltd.     

药品检验报告不合格项目核查探讨

目的根据药品检验不合格项目,对生产企业进行现场核查,提高现场核查和综合分析的水平,为依法查处违法违规行为提供有力证据。方法对现场核查的8个重要步骤作了具体阐述。结果与结论对药品生产企业开展药品检验不合格项目核查,是追溯药品生产企业是否违规的重要手段。从分析检验报告内容、履行送达程序、进行资质审查、核实生产记录等方面进行综合分析,最后作出适当的处理决定,才能达到依法行政的目的。     

生物医学论文表格中空缺项的规范表达

根据国家标准<科学技术报告、学位论文和学术论文的编写格式>(GB7713-87)中关于科技论文表格内空缺项表示的规定,对科技论文表格中空缺项处理作了分析,分别对"空白"、"一"和"0"的正确使用进行了举例说明,指出了"空白"、"一"和"0"的错误使用可能会给科研成果的表达造成混乱.     

实现IHE PIX核心匹配算法的关键技术

患者身份的唯一性识别与整合是实现区域医疗信息共享的基础。IHEPIX是国际上公认的解决患者身份唯一性问题的技术框架,着重介绍了在“医联工程”中实现IHE PiX匹配算法的三种关键技术：身份信息框架、多级停用词划分、关键信息项排序。该匹配算法在项目中的成功运用证实了这些关键技术的有效性。     

Functioning and validity of a Computerized Adaptive Test to measure anxiety (A-CAT)

Background: The aim of this study was to evaluate the Computerized Adaptive Test to measure anxiety (A‐CAT), a patient‐reported outcome questionnaire that uses computerized adaptive testing to measure anxiety. Methods: The A‐CAT builds on an item bank of 50 items that has been built using conventional item analyses and item response theory analyses. The A‐CAT was administered on Personal Digital Assistants to n=357 patients diagnosed and treated at the department of Psychosomatic Medicine and Psychotherapy, Charité Berlin, Germany. For validation purposes, two subgroups of patients (n=110 and 125) answered the A‐CAT along with established anxiety and depression questionnaires. Results: The A‐CAT was fast to complete (on average in 2 min, 38 s) and a precise item response theory based CAT score (reliability>.9) could be estimated after 4–41 items. On average, the CAT displayed 6 items (SD=4.2). Convergent validity of the A‐CAT was supported by correlations to existing tools (Hospital Anxiety and Depression Scale‐A, Beck Anxiety Inventory, Berliner Stimmungs‐Fragebogen A/D, and State Trait Anxiety Inventory: r=.56–.66); discriminant validity between diagnostic groups was higher for the A‐CAT than for other anxiety measures. Conclusions: The German A‐CAT is an efficient, reliable, and valid tool for assessing anxiety in patients suffering from anxiety disorders and other conditions with significant potential for initial assessment and long‐term treatment monitoring. Future research directions are to explore content balancing of the item selection algorithm of the CAT, to norm the tool to a healthy sample, and to develop practical cutoff scores. Depression and Anxiety, 2008. © 2008 Wiley‐Liss, Inc.