番荔枝种子化学成分研究

从番荔枝Annona squamosa L.种子的乙醇提取物分得三个polyketide类化合物:squamostatin-8(Ⅰ),annonin-vl(Ⅱ)和desacetyluvaricin(Ⅲ)以及胡萝卜甙(daucosterol,IV)。其中Ⅰ是一种新的polyketide,经光谱解析方法,测定了Ⅰ的化学结构式和部分碳原子的立体化学.     

口腔诊所信息管理系统的研究与开发

目的　研究利用计算机信息处理、数据库和图形技术 ,开发用于口腔诊所 (科室 )的信息管理系统。方法　在专家论证诊所 (科室 )的医疗现状和管理需求的基础上 ,制定我国口腔临床医疗操作代码 ,用PowerBuilder6 .0和SQLAnywhere数据库管理系统为开发工具 ;采用C语言作为图形开发工具 ,进行信息管理系统的研制。结果　该系统含 7个子系统 :患者信息管理、工作人员管理、财务管理、诊所资产管理、消耗品管理、技工委托、系统维护。经 8个单位试用 ,一年中累计管理患者约 110 0例。测试结果表明 ,系统具有较强和较完善的临床使用功能及方便的用户界面。结论　该系统能提高使用单位的临床医疗管理水平和效益。对提高医生的病历水平和积累研究资料也具有重要意义。     

Hemoglobin M equon beta 41 (C7) phenylalanine leads to tyrosine

A severe hemolytic crisis was observed in a 34-yr-old female of English- Irish extraction following a viral illness treated with acetaminophen. Heinz bodies and heat instability were present only during a transient hemolytic event. A challenge dose of acetaminophen caused no detectable hematologic abnormality. Structural studies of the hemoglobin during hemolysis and again after complete recovery localized the abnormality to tryptic peptide beta Tp-5, and automated sequencing of I 125-labeled beta chains indicated a replacement of phenylalanine (C7) beta 41 by tyrosine. Substitution of the next residue, phenylalanine (CD1) beta 42 by serine (Hb Hammersmith), has resulted in chronic severe Heinz body hemolytic anemia. The lack of chronic anemia in the present disorder may reflect the different relationships of beta41 and beta 42 and/or the similarities in volume and hydrophobicity of tyrosine and phenylalanine. It is suggested that substitution of tyrosine for phenylalanine in Hb Mequon may disturb the critical environment around the heme group and render it susceptible to oxidative denaturation in the presence of infections and/or drugs.     

胃癌单克隆抗体临床诊断应用及与CP相关性的探讨

目的：研究胃癌单克隆抗体的表达及临床意义。方法：用本室制备的对胃癌有较强特异性的ＭｃＡｂＧＭＧ１：１Ｄ１－２对１５１例内窥镜活检组织压印片进行免疫组织化学检查。结果：用本法检查组织印片中的癌细胞以及具有癌细胞相关抗原的癌前病变组织,特异性强,反应灵敏,结果可靠,结论：如果与内窥镜和常规病理学检查联合应用,会提高早期癌的检出率,本文还就抗人胃癌ＭｃＡｂ与ＣＰ的相关性进行了初步探讨。     

Frequency of use and knowledge of the WHO-surgical checklist in Swiss hospitals: a cross-sectional online survey

Background

The WHO-surgical checklist is strongly recommended as a highly effective yet economically simple intervention to improve patient safety. Its use and potentially influential factors were investigated as little data exist on the current situation in Switzerland.

Methods

A cross-sectional online survey with members (N?=?1378) of three Swiss professional associations of invasive health care professionals was conducted in German, French, and Italian. The survey assessed use of, knowledge of and satisfaction with the WHO-surgical checklist. T-Tests and ANOVA were conducted to test for differences between professional groups. Bivariate correlations were computed to test for associations between measures of knowledge and satisfaction.

Results

1090 (79.1%) reported the use of a surgical checklist. 346 (25.1%) use the WHO-checklist, 532 (38.6%) use the Swiss Patient Safety Foundation recommendations to avoid Wrong Site Surgery, and 212 (15.7%) reported the use of other checklists. Satisfaction with checklist use was generally high (doctors: 71.9% satisfied, nurses: 60.8% satisfied) and knowledge was moderate depending on the use of the WHO-checklist. No association between measures of subjective and objective knowledge was found.

Conclusions

Implementation of a surgical checklist remains an important task for health care institutions in Switzerland. Although checklist use is present in Switzerland on a regular basis, a substantial group of health care personnel still do not use a checklist as a routine. Influential factors and the associations among themselves need to be addressed in future studies in more detail.

     

Predictors of the development of myocarditis or acute renal failure in patients with leptospirosis: An observational study

Background  

Leptospirosis has a varied clinical presentation with complications like myocarditis and acute renal failure. There are many predictors of severity and mortality including clinical and laboratory parameters. Early detection and treatment can reduce complications. Therefore recognizing the early predictors of the complications of leptospirosis is important in patient management. This study was aimed at determining the clinical and laboratory predictors of myocarditis or acute renal failure.