成人跖疣人乳头瘤病毒分型及与临床特征的关系

目的 检测成人跖疣乳头瘤病毒(HPV)型别,并探讨HPV分型与临床特征的关系.方法 采用PCR扩增、基因测序和TA克隆技术检测221例跖疣患者疣体的HPV型,记录患者的年龄、病程、症状和疣体数.结果 221例标本中,HPV阳性率为97％(215/221).单一HPV型占96％(206/215),HPV 27、2、57和7(Alpha属)分别占44.7％ (92/206)、12.1％(25/206)、7.3％(15/206)和0.5％(1/206);HPV 65(Gamma属)占0.5％(1/206);HPV 1、63(Mu属)占33.5％ (69/206)和1.5％ (3/206).HPV 27、2和57三型感染者之间年龄、病程、疣体个数、疼痛发生率和性别比较,差异均无统计学意义.与HPV 27感染者相比,HPV 1感染者与年龄≤30岁、病程≤1年、疣体数≤2个和疼痛高发生率相关.结论 HPV 27、2、57和1是感染成人跖疣患者的主要HPV型.HPV型与患者的临床特征间存在相关性.     

天然免疫相关细胞因子在人类真菌感染中的作用

研究表明,白细胞介素?1β、4、6、10、12、17、23,肿瘤坏死因子α和干扰素γ等天然免疫相关细胞因子在人类真菌感染过程中具有重要作用.它们在介导天然免疫反应的同时又可以通过诱导Th0细胞的分化类型而调节适应性免疫反应,对真菌感染的转归产生了巨大的影响.依照"病原真菌?天然免疫细胞?细胞因子?靶细胞?生物学效应"这一条真菌感染的天然免疫反应主线,逐个梳理主要天然免疫相关细胞因子在人类真菌感染过程中的细胞来源、基本功能及其相互间作用,列举并分析各种原因造成其功能异常时所导致的真菌感染性疾病,可为人类真菌感染性疾病寻找更多的治疗靶点.     

HIF inhibitor 32-134D eradicates murine hepatocellular carcinoma in combination with anti-PD1 therapy

Hepatocellular carcinoma (HCC) is a major cause of cancer mortality worldwide and available therapies, including immunotherapies, are ineffective for many patients. HCC is characterized by intratumoral hypoxia, and increased expression of hypoxia-inducible factor 1α (HIF-1α) in diagnostic biopsies is associated with patient mortality. Here we report the development of 32-134D, a low-molecular-weight compound that effectively inhibits gene expression mediated by HIF-1 and HIF-2 in HCC cells, and blocks human and mouse HCC tumor growth. In immunocompetent mice bearing Hepa1-6 HCC tumors, addition of 32-134D to anti-PD1 therapy increased the rate of tumor eradication from 25% to 67%. Treated mice showed no changes in appearance, behavior, body weight, hemoglobin, or hematocrit. Compound 32-134D altered the expression of a large battery of genes encoding proteins that mediate angiogenesis, glycolytic metabolism, and responses to innate and adaptive immunity. This altered gene expression led to significant changes in the tumor immune microenvironment, including a decreased percentage of tumor-associated macrophages and myeloid-derived suppressor cells, which mediate immune evasion, and an increased percentage of CD8⁺ T cells and natural killer cells, which mediate antitumor immunity. Taken together, these preclinical findings suggest that combining 32-134D with immune checkpoint blockade may represent a breakthrough therapy for HCC.     

Theoretical and Experimental Research of Hydrogen Solid Solution in Mg and Mg-Al System

The study of hydrogen storage properties of Mg-based thin films is of interest due to their unique composition, interface, crystallinity, and high potential for use in hydrogen-storage systems. Alloying Mg with Al leads to the destabilization of the magnesium hydride reducing the heat of reaction, increases the nucleation rate, and decreases the dehydriding temperature. The purpose of our study is to reveal the role of the aluminum atom addition in hydrogen adsorption and accumulation in the Mg-H solid solution. Ab initio calculations of aluminum and hydrogen binding energies in magnesium were carried out in the framework of density functional theory. Hydrogen distribution and accumulation in Mg and Mg-10%Al thin films were experimentally studied by the method of glow-discharge optical emission spectroscopy and using a hydrogen analyzer, respectively. It was found that a hydrogen distribution gradient is observed in the Mg-10%Al coating, with more hydrogen on the surface and less in the bulk. Moreover, the hydrogen concentration in the Mg-10%Al is lower compared to Mg. This can be explained by the lower hydrogen binding energy in the magnesium-aluminum system compared with pure magnesium.     

第477例——肌痉挛,脱发,腹泻

患者为28岁女性,以腹泻、全身性脱发为突出表现,通过详细询问病史及多学科讨论,最终诊断为Satoyoshi综合征。患者原发病罕见,同时合并巨细胞病毒感染、铅中毒,诊断较为棘手。     

发育性髋关节发育不良超声检查指南质量控制要点分析

发育性髋关节发育不良(developmental dysplasia of the hip,DDH)是髋臼发育不良、髋关节半脱位及髋关节脱位疾患的统称[1].20世纪80年代之前,该疾病被称为先天性髋关节脱位,由于该疾患与生长发育密切相关,1992年北美骨科年会将其更名为DDH.DDH是小儿骨科最常见的髋关节疾患,出生...     

以人文素养为导向的《护理美学》多样化考核方法的探讨

目的：从《护理美学》课程对护生人文素养培养角度出发,探索一个被师生共同认可的多样化考核方法。方法选择上海中医药大学护理学院2012及2013级护理本科学生,根据其特点及课程大纲安排设计考核方案,采用小组作业、形体训练和综合场景训练等多方面综合考核方法,课程结束后对学生进行问卷调查。结果在考核方案的认可情况上,最受欢迎的是情景演示,占44．3％;其次是护理礼仪考核和病房设计作业考核,分别占26．7％和23．3％;论文写作最不受欢迎,占5．7％。认为考核内容能全面或尚可反映教学效果的占93．9％,认为考核方式能体现教学效果的占84．2％,认为各部分考核方式合适或一般的占92．2％。在课程内容上,男女生对理论讲授和情境展示的喜欢程度比较,差异无统计学意义（χ2值分别为0．027,1．079;P＞0．05）;对于礼仪训练、化妆课等的喜好方面,男女生比较,差异有统计学意义（χ2值为6．339～57．295;P＜0．05）。结论多样化的考核方式更能体现《护理美学》对护生人文素养培养的效果。     

从肝论治肺癌的优势

本文以中医学及现代医学理论为出发点,结合部分近现代学者从肝论治肺癌的经验,阐述其理论基础,分析作用机制,总结临床疗效。分析从肝论治肺癌的优势。中医学理论支持从肝论治肺癌治则,认为肝肺生理相关、病理相连,临床可分为肝郁气滞、气滞血瘀、肝火犯肺、肝肺阴虚四证。临床研究亦支持此观点,从肝论治是肺癌治疗中的重要治则,能明显改善患者身心及呼吸系统症状,提高免疫功能,增强正气,改善生命质量,最终达到扶正祛邪的抗肿瘤目的。其作用机制与诱导细胞凋亡、抑制肿瘤细胞增殖有关。