膨胀型聚氨酯防火涂料阻燃机理的研究

用自制的新型成炭剂和聚磷酸铵复配作为聚氨酯防火涂料的阻燃体系。采用热失重分析、扫描电镜、红外光谱和元素分析等手段对膨胀型聚氨酯防火涂料的阻燃机理进行了较为深入的研究．     

Transcription Factor PU.1 Promotes Conventional Dendritic Cell Identity and Function via Induction of Transcriptional Regulator DC-SCRIPT

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Nanofiber technology in the ex vivo expansion of cord blood-derived hematopoietic stem cells

Umbilical cord blood (CB) can be used as an alternative source of hematopoietic stem cells (HSCs) for transplantation in hematological and non-hematological disorders. Despite several recognized advantages the limited cell number in CB one unit still restricts its clinical use. The success of transplantation greatly depends on the levels of total nucleated cell and CD34+ cell counts. Thus, many ex vivo strategies have been developed within the last decade in order to solve this obstacle, with more or less success, mainly determined by the degree of difficulty related with maintaining HSCs self-renewal and stemness properties after long-term expansion. Different research groups have developed very promising and diverse CB-derived HSC expansion strategies using nanofiber scaffolds. Here we review the state-of-the-art of nanofiber technology-based CB-derived HSC expansion.     

肺纤维化患者血清中IL-9、IL-10、PU.1水平及其临床意义

目的研究特发性肺纤维化(IPF)患者血清中白细胞介素-9(IL-9)、白细胞介素-10(IL-10)、转录因子PU.1水平的变化,探讨其在肺纤维化中的作用。方法采用荧光定量逆转录聚合酶链反应法分别检测IPF患者30例,健康对照者25例血清中IL-9、IL-10及PU.1mRNA表达水平。结果 (1)IPF组患者血清IL-9水平明显高于对照组(P0.01)。(2)IPF组患者血清IL-10明显低于对照组(P0.01)。(3)IPF组患者血清PU.1水平高于对照组(P0.05)。(4)IL-9与IL-10表达呈负相关(r=-0.778,P0.05)。结论IL-9、IL-10、PU.1参与IPF的发病过程,联合检测这三种因子对于IPF发病机制的探索及临床诊治具有重要意义。     

慢性阻塞性肺病伴消化性溃疡临床分析

目的总结诊断治疗慢性阻塞性肺病(COPD)伴消化性溃疡(PU)的临床经验。方法通过对67例(2002-09～2006-08)COPD伴发PU患者的性别、年龄、临床表现、病程季节、生活饮食、辅助检查、整体护理、药物治疗综合分析,探讨其临床特点及内在规律。结果COPD容易伴发PU,中老年居多;PU以十二指肠溃疡(DU)居多;COPD伴发PU容易被忽视,容易漏诊误治。结论对中老年COPD伴发PU患者,要看到他们的诊断相关性和治疗特殊性。