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    • 7. 发明申请
    • METHOD FOR DETERMINING THE SELECTIVITY OF A PRE-SYNAPTIC NEUROMUSCULAR BLOCKING SUBSTANCE
    • 确定预应激性神经阻滞物质选择性的方法
    • WO2006013354A1
    • 2006-02-09
    • PCT/GB2005/003032
    • 2005-08-02
    • IPSEN LIMITEDFRANCE, RichardQUIRK, RobinRICCALTON-BANKS, LisaPICKETT, Andrew, Martin
    • FRANCE, RichardQUIRK, RobinRICCALTON-BANKS, LisaPICKETT, Andrew, Martin
    • G01N33/68
    • C12N5/0661G01N33/5082
    • The invention relates to a method for determining the quantity of pre-synaptic neuromuscular blocking substance (notably botulinum toxin) contained in a sample. In one aspects, the method comprises the following steps: (i) determining the minimum voltage V msm needed to induce the contraction of a smooth muscle tissue, said smooth muscle tissue being linked to an electrical stimulator through an electrically conducting liquid and preferably immersed in an oxygenated physiological buffer containing glucose; (ii) adding the sample containing the pre-synaptic neuromuscular mocking substance; (iii) electrically stimulating, at a voltage at least equal to V msm , the smooth muscle tissue at certain time intervals; (iv) comparing the effect induced by the sample to the effect induced by a reference substance and thereby determining the quantity of the pre-synaptic neuromuscular blocking substance in the sample. The invention also relates to a method for determining the selectivity of a pre-synaptic neuromuscular blocking substance.
    • 本发明涉及一种测定样品中包含的突触后神经肌肉阻滞物质(特别是肉毒杆菌毒素)的量的方法。 在一个方面,该方法包括以下步骤:(i)确定诱导平滑肌组织收缩所需的最小电压V max,所述平滑肌组织通过电刺激器与 导电液体,优选浸入含有葡萄糖的含氧生理缓冲液中; (ii)加入含有突触后神经肌肉嘲笑物质的样品; (iii)以一定时间间隔电平刺激平滑肌组织在至少等于V max的电压下; (iv)将样品诱导的效应与参考物质诱导的效果进行比较,从而确定样品中突触前神经肌肉阻滞物质的量。 本发明还涉及确定突触前神经肌肉阻滞物质的选择性的方法。