本文通过比较单价pH1N1疫苗接种者、pH1N1流感感染病例、流感患者密切接触者、健康对照人群的病毒特异性体液和细胞免疫水平,对pH1N1流感疫苗的免疫保护性效果进行了评价.采集4组人群外周血,检测血清中的pH1N1流感病毒特异性IgG抗体水平、抗体中和能力,以及PBMC经特异性病毒抗原刺激后分泌IFN γ的能力.发现pH1N1流感病例组中抗血凝素特异性IgG抗体水平显著高于疫苗接种组、健康对照组和密切接触组,而疫苗接种组则高于密切接触组,但与健康对照组无统计学差异;病例组和密切接触组的血凝抑制水平和分泌IFN γ的PBMC数量均高于疫苗接种组和健康对照组.同时,特异性IgG与血凝抑制水平呈正相关,分泌IFN γ的PBMC数量也与血凝抑制水平呈正相关.本研究认为,pH1N1流感病毒感染诱发的特异性细胞免疫和体液免疫应答水平及抗体中和能力均高于疫苗接种者.相对于健康人群,疫苗接种组在诱导产生病毒特异性IgG方面虽然没有比健康人群表现出特别强的优势,但其较高的特异性IgG与血凝抑制水平,表明疫苗接种仍然不失为一种有效的产生保护性抗体的重要手段,但是和病毒感染后的免疫应答反应相比,其不能诱导产生有效的细胞免疫应答.通过新型疫苗佐剂的选择使用等措施促进疫苗接种后体液和细胞免疫共同保护作用的产生值得进一步深入研究.
Su Shi admired Mei Yaochen very much.His acceptance for Mei Yaochen's poetry mainly reflected on the inheritance of the artistic idea and the aesthetic style.In particular,Su Shi inherited Mei's unified theory in poetry and painting as well as the plain aesthetic style of poems;in addition,he sublimated the more complete theory.Meanwhile,he promoted the development of poetry aesthetics in Song Dynasty.
Community rehabilitation for psychiatric patients has been paid more and more attention.The use of mental rehabilitation has been confirmed in the management of psychiatric patients.In this article,the author analyzed the present situation of psychological and social rehabilitation of psychiatric disorders,the community-based mental rehabilitation technologies presently used and the existing problems,in order to further discuss the application of community-based mental rehabilitation methods in the management of psychiatric disorders.
Objective To investigate the trends of colorectal cancer incidence in Shanghai Xuhui District from 2001 to 2011.Methods Total 3042 cases of colon cancer and 1958 cases of rectal cancer were collected from the Shanghai Cancer Reporting System.The results were age-adjusted according the census data of 2000 as the standardized incidence.Results The standardized incidence rate of colorectal cancer in Xuhui District rose from the 21.83/100 000 in 2001 to 27.35/100 000 in 2006 and increased by 25.29% ; from 2009 to 2011 the incidence rate was stabilized.The ratio of colon to rectal cancer was 1.55:1,and the incidence of colon cancer was significantly higher than rectal cancer.The incidence rate of male and feinale colorectal cancer increased with age,especially at > 45 y group accounting for 98.70% and 98.37% of total incidence rate respectively.The ratio of male to female in colon cancer incidence rate was 0.98∶ 1,while that of rectal cancer was1.25∶ 1.Conclusion The incidence of colorectal cancer in Xuhui District from the last 11 years is significantly higher than of national level.More effective preventive measures should be taken.
The colloidal battery is the valve-controlled sealed lead one using colloidal electrolyte,which possesses many merits,such as deep discharge restoration,higher utilization ratio,longer service life,stronger in recovery,ets.With the increasing demand for better quality batteries of motorcycles,the colloidal battery has a bright future.It is supposed to gradually replace the conventional batteries and AGM lead-acid batteries.