AROMATASE INHIBITOR-RELEASING INTRAVAGINAL DEVICE
    228.
    发明申请
    AROMATASE INHIBITOR-RELEASING INTRAVAGINAL DEVICE 审中-公开
    芳香酶抑制剂释放内皮细胞

    公开(公告)号:WO2014169395A1

    公开(公告)日:2014-10-23

    申请号:PCT/CA2014/050390

    申请日:2014-04-17

    Abstract: Described herein is an intravaginal device that provides biologically active circulating concentrations of an aromatase inhibitor for at least about of 4 days. Three compounds with estradiol inhibitory capability (letrozole, anastrozole and fenbendazole) were tested in vitro using bovine granulosa cell culture. Letrozole was found to be the most efficient and potent inhibitor. Liposome-based and a wax-based formulations were used to assess letrozole diffusion through bovine vaginal mucosa in a diffusion chamber study. Samples were collected over a 24 h period. The wax-based vehicle was selected for further development of a letrozole intravaginal device based on its steady release rate. In an in vivo study in cattle, 3 different intravaginal devices containing 3 g of letrozole were tested: Wax (with 1,2-Dioleoyl-sn-Glycero-3-Phosphoethanolamine, DOPE) + gel coat (n=2), Wax + gel coat (n=4) and Wax (n=4). Blood samples were collected serially from time 0 to 120 h, and daily thereafter to measure circulating concentrations of letrozole by LC/MS/MS. The addition of a letrozole-containing gel coating improved initial absorption and hastened the increase on plasma concentrations of the active ingredient, while the letrozole-containing wax-based vehicle maintained prolonged delivery from the intravaginal device.

    Abstract translation: 本文描述的是提供至少约4天的芳香酶抑制剂的生物活性循环浓度的阴道内装置。 使用牛颗粒细胞培养体外测试了具有雌二醇抑制能力的三种化合物(来曲唑,阿那曲唑和芬苯达唑)。 来曲唑被发现是最有效和最有效的抑制剂。 在扩散室研究中,使用基于脂质体的蜡和基于蜡的制剂来评估通过牛阴道粘膜的来曲唑扩散。 在24小时内收集样品。 基于其稳定释放速率,选择蜡基载体进一步开发来曲唑阴道内装置。 在牛的体内研究中,测试了含有3g来曲唑的3种不同的阴道内装置:蜡(含1,2-二油酰-sn-甘油-3-磷酸乙醇胺,DOPE)+凝胶涂层(n = 2),蜡+ 凝胶涂层(n = 4)和蜡(n = 4)。 从0到120小时连续收集血液样品,然后每天通过LC / MS / MS测量来曲唑的循环浓度。 添加含有来曲唑的凝胶涂层改善了初始吸收并加快了活性成分血浆浓度的增加,而来曲唑的蜡基载体保持了从阴道内装置延长的递送。

    ADVANCED PROCESS CONTROL FOR FERMENTATION
    229.
    发明申请
    ADVANCED PROCESS CONTROL FOR FERMENTATION 审中-公开
    用于发酵的先进过程控制

    公开(公告)号:WO2014140703A1

    公开(公告)日:2014-09-18

    申请号:PCT/IB2013/056087

    申请日:2013-07-24

    Inventor: LIN, Yen-Han

    CPC classification number: C12P7/06 C12M41/34 C12P7/46 Y02E50/17

    Abstract: A concentration of a control parameter in a fermentation broth can be monitored to monitor and/or control microbial fermentation. In some embodiments, a level of a control parameter present in the fermentation broth is controlled to improve microbial fermentation. In some embodiments, the control parameter is dissolved carbon dioxide concentration. In some embodiments, an abrupt drop in dissolved carbon dioxide concentration indicates the feed in the fermentation broth has been completely or nearly completely utilized.

    Abstract translation: 监测发酵液中控制参数的浓度以监测和/或控制微生物发酵。 在一些实施方案中,控制存在于发酵液中的控制参数的水平以改善微生物发酵。 在一些实施方案中,控制参数是溶解的二氧化碳浓度。 在一些实施方案中,溶解的二氧化碳浓度的突然下降表明发酵液中的饲料已被完全或几乎完全利用。

    PET AND SPECT MULTI PHOTON IMAGING WITH SINGLE RADIOACTIVE ISOTOPES
    230.
    发明申请
    PET AND SPECT MULTI PHOTON IMAGING WITH SINGLE RADIOACTIVE ISOTOPES 审中-公开
    PET和SPECT多光子成像与单个放射性同位素

    公开(公告)号:WO2014012182A1

    公开(公告)日:2014-01-23

    申请号:PCT/CA2013/050556

    申请日:2013-07-18

    CPC classification number: G01T1/1603 A61B6/037 G01T1/2985

    Abstract: Systems and methods for determining an approximate location of a radionuclide at a time of its radioactive decay are described. In one embodiment, the method comprises introducing into a target region a radionuclide that, at the time of its radioactive decay, emits a positron and a primary photon, detecting the primary photon at a first one of a plurality of photon detectors and detecting at least one secondary photon emitted from an annihilation of the position at least a second one of the plurality of photon detectors, and determining the approximate location of the radionuclide at the time of its radioactive decay based on a location of the first one of the plurality of photon detectors, a location of the second one of the plurality of photon detectors, and a presumed common point of origin of the detected primary photon and the detected at least one secondary photon.

    Abstract translation: 描述了在放射性衰变时确定放射性核素的近似位置的系统和方法。 在一个实施例中,该方法包括向放射性核素引入放射性核素,放射性核素在其放射性衰变时发射正电子和主光子,检测多个光子检测器中的第一个的主光子并至少检测 从所述多个光子检测器中的至少第二光子检测器的位置的湮灭发射的一个次级光子,并且基于所述多个光子中的第一个的光子的位置来确定放射性核素在其放射性衰变时的大致位置 检测器,多个光子检测器中的第二个光电探测器的位置,以及所检测到的一次光子和检测到的至少一个次光子的推定公共点。

Patent Agency Ranking