Method of producing immunoglobulin preparations for intravenous injection
    1.
    发明授权
    Method of producing immunoglobulin preparations for intravenous injection 失效
    生产用于静脉注射的免疫抑制素制剂的方法

    公开(公告)号:US5132406A

    公开(公告)日:1992-07-21

    申请号:US348139

    申请日:1989-05-05

    摘要: A method of producing immunoglobulin preparations for intravenous injection which starts with an immunoblobulin-containing fraction and comprises the treatment steps of:(a) treating said fraction with 4-10 weight/volume percent of polyethylene glycol having a molecular weight of 1,000-10,000 under conditions of pH 4-6, ion strength 0.0001-0.1M and temperature 0.degree.-4.degree. C. and recovering the supernatant,(b) treating the supernatant obtained in step (a) with 10-15 weight/volume percent of polyethylene glycol having a molecular weight of 1,000-10,000 under conditions of pH 6-9, ion strength 0.0001-0.1M and temperature 0.degree.-4.degree. C. and recovering the resulting precipitate, and(c) heat-treating, in any desired step, said immunoglobulin in the presence of a stabilizer under conditions sufficient to inactivate contaminant viruses.The preparations obtained according to the invention retain immunoglobulins without substantial inactivation thereof, and are substantially free of such contaminants as anti-human blood group substance antibodies. With contaminant viruses inactivated as a result of the heat treatment, said preparations have good solubility and are sufficiently low in anticomplement activity.

    摘要翻译: 一种生产用于静脉注射的免疫球蛋白制剂的方法,其起始于含免疫球蛋白的级分,并且包括以下处理步骤:(a)用4-10重量/体积%的分子量为1,000-10,000的聚乙二醇处理所述级分, 条件pH 4-6,离子强度0.0001-0.1M,温度0℃-4℃,回收上清液,(b)用10-15重量/体积%聚乙二醇处理步骤(a)中得到的上清液 在pH 6-9,离子强度为0.0001-0.1M,温度为0〜-4℃的条件下分子量为1,000〜10,000,回收所得沉淀物,(c)在任何所需步骤中热处理, 所述免疫球蛋白在足以灭活污染性病毒的条件下在稳定剂存在下进行。 根据本发明获得的制剂保留免疫球蛋白而基本上不灭活,并且基本上不含抗人血型物质抗体等污染物。 随着由于热处理而灭活的污染物病毒,所述制剂具有良好的溶解性并且抗补体活性足够低。

    Process for heat treating chemically unmodified gamma-globulin
    3.
    发明授权
    Process for heat treating chemically unmodified gamma-globulin 失效
    化学未改性的γ-球蛋白的热处理方法

    公开(公告)号:US4845199A

    公开(公告)日:1989-07-04

    申请号:US71685

    申请日:1987-07-09

    IPC分类号: A61L2/00

    CPC分类号: A61L2/0023 Y10S530/83

    摘要: A process for heat treating an aqueous solution containing chemically unmodified .gamma.-globulin, wherein said heat treating is carried out in the presence of sorbitol is disclosed. By the heat treatment, impurity viruses can be inactivated without causing impairment of activities of chemically unmodified .gamma.-globulin, increasing polymer contents or increasing an anticomplement titer.

    摘要翻译: 公开了一种用于热处理含有化学未改性的γ-球蛋白的水溶液的方法,其中所述热处理在山梨醇存在下进行。 通过热处理,可以使杂质病毒灭活而不引起化学未改性的γ-球蛋白活性的损害,增加聚合物含量或增加抗补体滴度。

    Method for purification and recovery of urokinase
    5.
    发明授权
    Method for purification and recovery of urokinase 失效
    尿激酶的纯化和回收方法

    公开(公告)号:US4010074A

    公开(公告)日:1977-03-01

    申请号:US683239

    申请日:1976-05-04

    IPC分类号: C12N9/72 C07G7/02

    摘要: Highly purified urokinase is obtained in a high yield by adsorbing urokinase from an aqueous crude urokuinase solution including human urine at a pH of about 4.0 to about 7.0 on a water-insoluble polysaccharide containing agarose and agaropectin, for example, agar and Sepharose, and by eluting urokinase with an alkaline solution (pH of about 8 to 11) or concentrated salt solution.

    摘要翻译: 通过在含有约4.0至约7.0的pH值的人尿液水性粗尿素酶溶液中,在含有琼脂糖和琼脂糖的水不溶性多糖例如琼脂和琼脂糖上吸附尿激酶,并通过以下方式获得高纯度的尿激酶: 用碱性溶液(约8至11的pH)或浓盐溶液洗脱尿激酶。