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    • 7. 发明申请
    • DETECTION OF ANTHRAX PATHOGENICITY FACTORS
    • 检测ANTHRAX致病因子
    • US20120122123A1
    • 2012-05-17
    • US11675233
    • 2007-02-15
    • ANNE E. BOYERConrad P. QuinnJohn R. Barr
    • ANNE E. BOYERConrad P. QuinnJohn R. Barr
    • G01N33/566G01N21/64C12M1/34
    • G01N33/56911G01N2333/32G01N2500/00
    • One major problem in diagnosis methods presently available for anthrax is that these methods require several days to produce a result. The only existing treatment for anthrax requires administration soon after infection at a time when patients are exhibiting only mild flu-like symptoms. Thus, a patient may be days beyond the time when treatment would be effective by the time a diagnosis is made. The present invention reduces diagnosis time to as little as four hours providing same day identification of anthrax radically increasing the odds of delivering proper treatment and patient recovery. The rapid identification of anthrax lethal factor activity exhibited by the instant invention is also amenable to in vivo screening protocols for the discovery and development of anthrax vaccines and lethal factor inhibitors. The instant invention isolates and concentrates lethal factor and lethal toxin from nearly any biological sample. By capitalizing on the endopeptidase activity of lethal factor the present invention amplifies output signals producing reliable detection of picomolar concentrations of lethal factor. The instant invention involves novel purification and detection techniques and substrates for rapid, reproducible, and quantitative measurements of anthrax lethal factor in biological samples.
    • 目前可用于炭疽的诊断方法的一个主要问题是这些方法需要几天才能产生结果。 炭疽病唯一现有的治疗方法需要在感染后立即进行治疗,当时患者只出现轻微的流感样症状。 因此,患者可能是在诊断时治疗有效的时间。 本发明将诊断时间缩短至少于4小时,同时提供炭疽的同一天鉴定,从而大大增加了提供适当治疗和患者恢复的几率。 本发明显示的炭疽致死因子活性的快速鉴定也适用于发现和发展炭疽疫苗和致死因子抑制剂的体内筛选方案。 本发明从几乎任何生物样品中分离和浓缩致死因子和致死毒素。 通过利用致死因子的内肽酶活性,本发明扩增了产生对皮摩尔浓度致死因子的可靠检测的输出信号。 本发明涉及用于生物样品中炭疽致死因子的快速,可重复和定量测量的新颖的纯化和检测技术和底物。