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    • 4. 发明授权
    • Method for inducing tumor apoptosis by increasing nitric oxide levels
    • 通过增加一氧化氮水平诱导肿瘤细胞凋亡的方法
    • US08829004B2
    • 2014-09-09
    • US13628849
    • 2012-09-27
    • Universitätsklinikum Freiburg
    • Georg Bauer
    • A61K31/497A61K31/415A61K31/335A61K31/4196A61K31/4174A61K31/19A61K31/195A61K31/496C12Q1/30G01N33/50
    • G01N33/5011A61K31/19A61K31/195A61K31/415A61K31/4174A61K31/4196A61K31/496C12Q1/30G01N2333/908G01N2333/978G01N2510/00A61K2300/00
    • The present invention refers to a method for inducing tumor apoptosis by influencing the ROS (reactive oxygen species) signaling pathway in tumor cells. Increasing the level of ROS leads to the selective inactivation of a tumor cell catalase and subsequently to an apoptosis of these cells. The level of ROS can be increased by increasing the level of nitric oxide through inhibition of the enzymes nitric oxide dioxygenase or arginase. According to the present invention inhibitors of the nitric oxide dioxygenase or arginase can be used for the manufacture of a medicament for the treatment of cancer. The present invention further provides a method for identifying compounds which can be used for the treatment of cancer, wherein the method allows to specifically identify compounds which induce apoptosis through the ROS signaling pathway. The present invention also provides a kit for identifying compounds which induce tumor apoptosis by inactivating a catalase on the tumor cell surface.
    • 本发明涉及通过影响肿瘤细胞中的ROS(活性氧)信号通路诱导肿瘤细胞凋亡的方法。 增加ROS的水平导致肿瘤细胞过氧化氢酶的选择性失活,然后导致这些细胞的细胞凋亡。 可以通过抑制一氧化氮双加氧酶或精氨酸酶来增加一氧化氮的水平来增加ROS的水平。 根据本发明,一氧化氮双加氧酶或精氨酸酶的抑制剂可用于制备用于治疗癌症的药物。 本发明还提供了一种用于鉴定可用于治疗癌症的化合物的方法,其中所述方法允许特异性鉴定通过ROS信号通路诱导细胞凋亡的化合物。 本发明还提供了一种用于鉴定通过灭活肿瘤细胞表面上的过氧化氢酶诱导肿瘤细胞凋亡的化合物的试剂盒。
    • 5. 发明授权
    • Method for homogenizing resolution in magnet resonance tomography measurements using non-linear encoding fields
    • 使用非线性编码区域在磁共振断层摄影测量中使分辨率均匀化的方法
    • US08823372B2
    • 2014-09-02
    • US13064277
    • 2011-03-16
    • Hans WeberMaxim ZaitsevDaniel GallichanGerrit Schultz
    • Hans WeberMaxim ZaitsevDaniel GallichanGerrit Schultz
    • G01R33/48G01R33/483
    • G01R33/4833
    • A method for magnetic resonance (=MR) imaging, wherein non-linear gradient fields are applied for the purpose of spatial encoding to acquire images of an object to be imaged and wherein the magnet resonance signal radiated from the object to be imaged is sampled on grids in time, to thereby obtain sampling points, is characterized in that the object to be imaged is mapped completely in regions of stronger gradient fields by increasing the density of the sampling points in the center of k-space, and additional sampling points are specifically acquired in the outer regions of k-space according to a k-space sampling pattern depending on the desired distribution of the resolution in the measurement, wherein the MR measurement is calculated with the additional sampling points. An MR imaging method is thereby provided by means of which homogenized resolution is achieved in the MR measurements using non-linear gradient fields for spatial encoding.
    • 一种用于磁共振(= MR)成像的方法,其中应用非线性梯度场用于空间编码以获取待成像对象的图像,并且其中从待成像对象辐射的磁共振信号被采样在 时间上的网格,从而获得采样点,其特征在于通过增加k空间中心的采样点的密度,将要成像的对象完全映射在更强的梯度场的区域中,并且附加的采样点是具体的 根据k-空间采样模式在k空间的外部区域中取决于测量中的分辨率的期望分布,其中用附加采样点计算MR测量值。 由此提供MR成像方法,通过这种方法,使用非线性梯度场用于空间编码的MR测量中实现了均匀分辨率。
    • 7. 发明授权
    • Increasing spoil efficiency
    • 增加弃渣效率
    • US08558545B2
    • 2013-10-15
    • US12929597
    • 2011-02-03
    • Jochen Leupold
    • Jochen Leupold
    • G01V3/00
    • G01R33/5613
    • A method for operating a nuclear magnetic resonance imaging device, wherein a continuous sequence of radio-frequency (=RF) pulses are radiated onto a sample, Ψ being the constant phase value for all magnetization vectors, and all magnetization vectors undergo a phase progression Fn=nΨ during the n-th sequence interval, wherein P is the number of RF pulses after which the phase angle of the magnetization vectors is repeated, wherein the total gradient moment in one or more directions in space having a value greater than 0, and consecutive pulses exhibit a constant repetition time TR, wherein, after radiation of one RF pulse, one k-space row is acquired. The method is characterized in that any one- or multi-dimensional arrangement of k-space rows is repeated identically N times, and signals from identical k-space rows are averaged or added. The method increases the efficiency of the gradient spoiling and thus the efficiency of artifact suppression.
    • 一种用于操作核磁共振成像装置的方法,其中将射频(= RF)脉冲的连续序列辐射到样本上,Psi是所有磁化矢量的恒定相位值,并且所有磁化矢量经历相位进展Fn = nPsi,其中P是RF脉冲的数量,在此之后重复磁化矢量的相位角,其中空间中一个或多个方向上的总梯度矩大于0,以及 连续的脉冲呈现恒定的重复时间TR,其中在一个RF脉冲的辐射之后,获取一个k空间行。 该方法的特征在于,k空间行的任何一维或多维排列重复相同N次,并且来自相同k空间行的信号被平均或相加。 该方法提高了梯度扰动的效率,从而提高了伪影抑制效率。