LANCET Infect Dis:SjSP13诊断血吸虫病敏感性佳

2014-03-23 MedSci MedSci原创

      血吸虫病是影响我国人民健康的重大热带传染病,在过去60多年里我国血吸虫病防治取得辉煌成就,其流行程度得到有效控制 ,但目前一些疫区仍呈现出血吸虫病疫情扩散蔓延或有卷土重来趋血吸虫病是影响我国人民健康的重大热带传染病,在过去60多年里我国血吸虫病防治取得辉煌成 就,其流行程度得到有效控制 ,但目前一些疫区仍呈现出血吸虫病疫

      血吸虫病是影响我国人民健康的重大热带传染病,在过去60多年里我国血吸虫病防治取得辉煌成就,其流行程度得到有效控制 ,但目前一些疫区仍呈现出血吸虫病疫情扩散蔓延或有卷土重来趋血吸虫病是影响我国人民健康的重大热带传染病,在过去60多年里我国血吸虫病防治取得辉煌成 就,其流行程度得到有效控制 ,但目前一些疫区仍呈现出血吸虫病疫情扩散蔓延或有卷土重来趋势,再次成为我国重要公共卫生问题。

        势,再次成为我国重要公共卫生问题。

        “973”首席科学家潘卫庆教授率领其科研团队,在我国血吸虫病诊治技术研究获重大突破。 3月19日,国际顶级学术期刊《柳叶刀·传染病》(The LANCET Infectious Diseases)杂志以论著形式,在线发表潘卫庆团队最新科研成果,该杂志专门配发美国约翰霍普金斯大学彭博公共卫生学院克莱夫·席夫教授的评论文章, 他说:“该研究团队从全基因组范围筛选出敏感的诊断分子,将极大改进血吸虫检测技术,从而为全球血吸虫病流行程度作出全面客观的评估。”

        中国疾病控制中心寄生虫病预防控制所所长周晓农研究员认为,“这项研究围绕我国当前血吸虫病从控制走向消除这一需求,对血吸虫病筛查正确率和监测敏感性的提升起到了积极推动作用,是依靠科学研究解决防治中关键技术问题的一个典范”。

        血吸虫病是个古老的传染病,在我国流行已有几千年的历史,但该病的诊断迄今仍然沿用传统粪检查虫卵的方法。尽管这种方法简便有效,但其敏 感性不足已成为当前血吸虫病防治的重要问题,特别是目前多数疫区呈现血吸虫低度感染,检测技术的敏感性显得尤为重要。此外,缺乏血吸虫病药物治疗后疗效考 核技术也是该病防治的另一个重要问题。这些问题已成为当前血吸虫病防治中亟待解决的突出问题。

        在国家973计划项目资助下,潘卫庆教授率领“疟疾、血吸虫病防治基础研究”团队,包括同济大学医学院、江西省寄生虫病防治研究所所、苏 州大学医学院、第二军医大学热卫系等单位的科研人员,针对上述血吸虫病防治技术存在的实际问题,充分利用我国血吸虫基因组研究的成果,经过6年的艰辛攻 关,从全基因组水平筛选血吸虫病诊断的标识分子。该团队首先建立融合分泌蛋白高通量筛选的技术平台,再从基因组范围大规模筛查具有诊断价值的标识分子,从 200多个血吸虫分泌蛋白中鉴定出一个具有诊断价值的标识分子(即SjSP-13),通过大量样本的实验室研究,结果显示了该诊断分子具有高度敏感性和特 异性。在此基础上,该研究团队对SjSP-13诊断分子进行血吸虫病流行区的现场验证,表明其诊断敏感性比传统方法提高了6倍。

        该文通讯作者、第二军医大学热卫系热带传染病学教研室主任潘卫庆教授说,当前我国血吸虫病防控总体策略是以传染源控制为主的综合防治策 略。控制传染源重要途径是要能及时准确发现感染者,并对所有感染者加以有效治疗。由于目前血吸虫病流行特点是以低度感染为主,诊断低度感染者需要高敏感度 的技术,因此SjSP-13诊断分子的发现解决了现有诊断技术敏感性不足这一根本问题,该分子的应用必将为血吸虫病总体防控策略的实施提供重要的技术支 持,为我国血吸虫病防控乃至消除将产生积极影响。

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    2014-12-24 howi
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    2014-03-25 ylz8404
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