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    • 7. 发明申请
    • Biofilm-Inhibiting Catheters and Tubings
    • 生物膜抑制导管和管
    • US20090255536A1
    • 2009-10-15
    • US12420671
    • 2009-04-08
    • Yossef Av-GayLivia MahlerChristopher C. Miller
    • Yossef Av-GayLivia MahlerChristopher C. Miller
    • A61L29/16A61M16/04A61M27/00B05D7/24
    • A61L29/16A61L2300/114A61L2300/404A61M16/04A61M16/0465A61M2025/0056
    • Antimicrobial and biofilm-inhibiting nitric oxide-releasing medical appliances for installation into a patient, and processes for producing the medical appliances. The medical appliances are configured for conveying materials into and out of the patient's body and may comprise tubings or pouching systems. The medical appliances comprise a gas-permeable cured resin material selected from the group consisting of curable silicones, polyvinyl acetates, thermoplastic elastomers, acrylonitrile-butadiene-styrene copolymer rubber, polyurethanes and selected combinations thereof, wherein the gas-permeable cured resin material comprises a matrix suitable for releasably sequestering therein permeating gases. A plurality of nitric-oxide gas-releasing moieties is sequestered within and through the gas-permeable resin material. Nitric oxide is released from at least a portion of said plurality of nitric oxide gas-releasing moieties upon contact of the medical appliance with a moisture source. Exemplary medical appliances include endotracheal tubes, crichotracheotomy tubes, urinary catheters, wound drainage tubes, central intravenous catheters, peripheral intravenous catheters, and poucing systems.
    • 用于安装到患者体内的抗菌和生物膜抑制一氧化氮释放医疗器具,以及用于生产医疗器具的方法。 医疗器具被配置为将材料输送进入和离开患者身体,并且可以包括管道或包囊系统。 所述医疗器具包括选自可固化的硅酮,聚乙酸乙烯酯,热塑性弹性体,丙烯腈 - 丁二烯 - 苯乙烯共聚物橡胶,聚氨酯及其选择的组合的透气性固化树脂材料,其中透气性固化树脂材料包括 基质适于在其中可释放地封闭渗透气体。 多个一氧化氮气体释放部分被隔离在透气性树脂材料内并通过透气性树脂材料。 当医疗器具与湿气源接触时,一氧化氮从所述多个一氧化氮气体释放部分的至少一部分释放。 示例性医疗器具包括气管内导管,气管切开术管,导尿管,伤口引流管,中央静脉导管,外周静脉导管和灌注系统。
    • 9. 发明授权
    • Bacterial mycothiol S-conjugate amidase family
    • 细菌霉菌S共轭酰胺酶家族
    • US07183094B2
    • 2007-02-27
    • US10427218
    • 2003-04-30
    • Gerald L. NewtonYossef Av-GayRobert C. Fahey
    • Gerald L. NewtonYossef Av-GayRobert C. Fahey
    • C12N9/80
    • C12P19/26C12N9/80
    • The present invention provides a family of bacterial acyl glucosaminylinositol amidases with amidase activity against S-conjugate amides, particularly mycothiol-derived S-conjugate amides. The invention amidases are characterized by a highly conserved 20 amino acid N-terminal region and four highly conserved histidine-containing regions and by having amidase activity, particularly amide hydrolase activity. The invention further provides methods for using the invention amidases in drug screening assays to determine compounds with antibiotic activity or compounds that inhibit activity or production of endogenous acyl glucosaminyl inositol amidase in bacteria. The invention further provides methods for detoxifying a toxic substance by contacting the toxic substance with an invention amidase, for example, by expression of the amidase under environmental conditions in a bacterium.
    • 本发明提供了一种具有针对S-缀合物酰胺的酰胺酶活性的细菌性酰基葡糖胺基肌氨酰胺酶家族,特别是由咪唑硫醇衍生的S-共轭酰胺。 本发明酰胺酶的特征在于高度保守的20个氨基酸的N-末端区域和4个高度保守的组氨酸区域,并具有酰胺酶活性,特别是酰胺水解酶活性。 本发明还提供了在药物筛选测定中使用本发明的方法来测定具有抗生素活性的化合物或抑制细菌内源性酰基葡糖胺基肌醇酰胺酶活性或产生的化合物。 本发明还提供了通过使有毒物质与发酵酰胺酶接触来使毒性物质解毒的方法,例如通过在环境条件下在细菌中表达酰胺酶。