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公开(公告)号:EP1491205A1
公开(公告)日:2004-12-29
申请号:EP03715663.5
申请日:2003-03-31
发明人: KAJI, Ryuji , KOZAKI, Shunji , OGUMA, Keiji
IPC分类号: A61K38/00 , A61K45/00 , A61K47/42 , A61P21/02 , A61P25/00 , A61P25/14 , A61P27/02 , A61P43/00
CPC分类号: A61K38/4886
摘要: A remedy for muscle hyperactivity, comprising a purified botulinum neurotoxin as an active ingredient.
摘要翻译: 用于治疗高水平症的药物包括纯化的肉毒神经毒素。 活动性:肌肉活跃。 肉毒杆菌神经毒素从培养的B型微生物培养物获得,并在离子交换柱上分离,然后用β-乳糖凝胶柱分离。 通过胰蛋白酶和β-乳糖凝胶亲和层析纯化肉毒神经毒素L。 将获得的肉毒神经毒素L透析至pH8.0,10mM磷酸盐缓冲液,收集在β-乳糖凝胶亲和层析柱上不吸收的级分,得到肉毒神经毒素B.其活性通过ip注射到小鼠中进行测定。 用20mM磷酸钠缓冲液将pH调节至6.0,7.0或8.0,浓度为500MLD / 0.25ml(MLD是小鼠腹腔注射时的最小致死剂量)。 将不同的pH样品与等量的1mg / ml的人血清白蛋白(HSA)混合,并在4℃冷藏并在-80℃下冷冻。 对于具有HSA的样品,90天后的活性在500MLD时不变,而在未添加HSA的样品下,1MLD或更低。 行动机制:源材料无。
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2.
公开(公告)号:EP2189790A1
公开(公告)日:2010-05-26
申请号:EP08827849.4
申请日:2008-08-20
申请人: Juridical Foundation The Chemo-Sero-Therapeutic Research Institute , JAPAN as represented by DIRECTOR GENERAL OF NATIONAL INSTITUTE OF INFECTIOUS DISEASES
发明人: TORII, Yasushi , HARAKAWA, Tetsuhiro , GOTO, Yoshitaka , GINNAGA, Akihiro , KAJI, Ryuji , KOZAKI, Shunji , TAKAHASHI, Motohide
CPC分类号: G01N33/6854 , A61B5/0488 , G01N2333/33 , G01N2469/20
摘要: A method for quantification of a titer of a neutralizing antibody to a neurotoxin is disclosed. The method comprises the steps: (a) mixing a standard sample containing a fixed amount of a neurotoxin and a test sample containing a neutralizing antibody to said neurotoxin; (b) administering the mixture obtained in step (a) into the muscle of a non-human mammal; (c) applying electric stimulus to said non-human mammal; (d) measuring a compound muscle action potential (CMAP) due to contraction of the muscle of said mammal by application of electric stimulus with an electromyograph; and (e) analyzing CMAP amplitude data obtained in step (d) for an extent of decrease in amplitude by a non-neutralized neurotoxin to thereby quantify a titer of the neutralizing antibody contained in the test sample.
摘要翻译: 公开了定量测定神经毒素中和抗体效价的方法。 该方法包括以下步骤:(a)将含有固定量的神经毒素的标准样品和含有中和抗体的测试样品混合到所述神经毒素中; (b)将步骤(a)中获得的混合物给予非人类哺乳动物的肌肉; (c)对所述非人类哺乳动物施加电刺激; (d)通过用肌电图应用电刺激测量所述哺乳动物肌肉收缩引起的复合肌肉动作电位(CMAP); 和(e)分析步骤(d)中获得的CMAP幅度数据对于未中和的神经毒素的幅度降低程度,从而定量测试样品中含有的中和抗体的效价。
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