LINQ在医院信息系统的应用

LINQ是一种新的数据访问技术，提供了一种用于在不同类型的数据源中查询和更新数据的统一编程模型，提高了编程的效率，降低了访问数据的复杂度。介绍了LINQ的特点、作用及其在开发医院信息系统中的具体应用。     

Plasmodium falciparum synthetic LbL microparticle vaccine elicits protective neutralizing antibody and parasite-specific cellular immune responses

Epitopes of the circumsporozoite (CS) protein of Plasmodium falciparum, the most pathogenic species of the malaria parasite, have been shown to elicit protective immunity in experimental animals and human volunteers. The mechanisms of immunity include parasite-neutralizing antibodies that can inhibit parasite motility in the skin at the site of infection and in the bloodstream during transit to the hepatocyte host cell and also block interaction with host cell receptors on hepatocytes. In addition, specific CD4+ and CD8+ cellular mechanisms target the intracellular hepatic forms, thus preventing release of erythrocytic stage parasites from the infected hepatocyte and the ensuing blood stage cycle responsible for clinical disease. An innovative method for producing particle vaccines, layer-by-layer (LbL) fabrication of polypeptide films on solid CaCO₃ cores, was used to produce synthetic malaria vaccines containing a tri-epitope CS peptide T1BT* comprising the antibody epitope of the CS repeat region (B) and two T-cell epitopes, the highly conserved T1 epitope and the universal epitope T*. Mice immunized with microparticles loaded with T1BT* peptide developed parasite-neutralizing antibodies and malaria-specific T-cell responses including cytotoxic effector T-cells. Protection from liver stage infection following challenge with live sporozoites from infected mosquitoes correlated with neutralizing antibody levels. Although some immunized mice with low or undetectable neutralizing antibodies were also protected, depletion of T-cells prior to challenge resulted in the majority of mice remaining resistant to challenge. In addition, mice immunized with microparticles bearing only T-cell epitopes were not protected, demonstrating that cellular immunity alone was not sufficient for protective immunity. Although the microparticles without adjuvant were immunogenic and protective, a simple modification with the lipopeptide TLR2 agonist Pam₃Cys increased the potency and efficacy of the LbL vaccine candidate. This study demonstrates the potential of LbL particles as promising malaria vaccine candidates using the T1BT* epitopes from the P. falciparum CS protein.     

Dental case manager encounters: the association with retention in dental care and treatment plan completion

Little is known about dental case managers as few programs have been scientifically evaluated. The goal of this study was to explore the impact of dental case manager on retention in dental care and completion of treatment plans, while specifically exploring the number of dental case manager encounters. Fourteen programs enrolled people with HIV/AIDS (PLWHA) in dental care and a longitudinal study between 2007 and 2009. The 758 participants had a total of 2715 encounters with a dental case manager over twelve months: 29% had a single encounter; 21% had two; 27% had 3–4 and; 23% had 5–29 encounters. Adjusting for baseline characteristics, participants receiving more encounters were significantly more likely to complete their Phase 1 treatment plan, be retained in dental care, and experience improvements in overall oral health status. Organizations considering efforts to improve the oral health of vulnerable, hard‐to‐engage populations should consider these findings when planning interventions.     

NLR、PLR在高血脂症性急性胰腺炎诊断及病情评估中的价值

目的探究中性粒细胞与淋巴细胞比值(NLR)、血小板与淋巴细胞比值(PLR)在高血脂症性急性胰腺炎(HLAP)诊断及病情评估中的价值。方法选取本院132例HLAP患者作为观察组,另选取同期66例胆源性、酒精性急性胰腺炎非HLAP患者作为对照组,66例健康体检者作为健康组,比较3组NLR、PLR、血脂指标[总胆固醇(TC)、三酰甘油(TG)]、炎性因子[C反应蛋白(CRP)、降钙素原(PCT)],分析NLR、PLR与血脂指标、炎性因子相关性,采用受试者工作特征(ROC)曲线评价NLR、PLR诊断价值,对比观察组不同病情程度患者NLR、PLR水平,分析NLR、PLR与HLAP病情程度的关系。结果观察组NLR、PLR、TC、TG、CRP、PCT高于对照组、健康组,对照组高于健康组,差异有统计学意义(P<0.05);Pearson相关性分析,NLR、PLR与TC、TG、CRP、PCT呈正相关(P<0.05);ROC曲线分析,NLR、PLR联合诊断AP的AUC为0.901,95%CI为0.858~0.934,敏感度为80.30%,特异度为92.42%,两者联合诊断HLAP的AUC为0.846,95%CI为0.788~0.893,敏感度为71.21%,特异度为83.33%,均优于两者单独诊断,差异有统计学意义(P<0.05);观察组重度患者NLR、PLR高于中度患者、轻度患者,中度患者高于轻度患者,差异有统计学意义(P<0.05);Spearman相关性分析,NLR、PLR与HLAP病情程度呈正相关(P<0.05)。结论 NLR、PLR联合检测在HLAP诊断与病情评估中具有较高临床价值。     

Does Tweeting Improve Citations? One-Year Results From the TSSMN Prospective Randomized Trial

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