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    • 89. 发明授权
    • Neuronotrophic factor derived from mammalian brain tissue
    • 衍生自哺乳动物脑组织的神经营养因子
    • US5218094A
    • 1993-06-08
    • US562024
    • 1990-08-02
    • Francesco della Valle
    • Francesco della Valle
    • A61K35/30A61K38/00C07K14/475
    • A61K35/30C07K14/475A61K38/00
    • A novel neuronotrophic factor having a molecular weight of about 14,000 to 17,000 daltons and an isoelectric point of about 10 is prepared by homogenization of mammalian brain tissue, particularly bovine brain tissue, acid precipitation of the homogenate thus produced, dialysis of the resulting supernatant with dialysis membranes having a molecular weight cut-off of between 5 and 10 kilodaltons and chromatographic fractionation upon molecular weight permeation of the dialyzed supernatant thus produced. The neuronotrophically active fractions may be further purified by cation exchange chromatography with a gradient of ammonium acetate buffer. The neuronotrophic factor of the invention is useful in the treatment of various neuropathological conditions.
    • 通过哺乳动物脑组织,特别是牛脑组织的均质化,由此产生的匀浆酸性沉淀,透析所得上清液透析,制备分子量约为14,000至17,000道尔顿,等电点约为10的新型神经营养因子 分子量截留值在5到10千道尔顿之间的膜,并且由此产生的透析的上清液的分子量渗透色谱分离。 神经营养活性级分可以通过具有乙酸铵缓冲液梯度的阳离子交换层析进一步纯化。 本发明的神经营养因子可用于治疗各种神经病理学病症。
    • 90. 发明授权
    • Partial esters of hyaluronic acid
    • 透明质酸的部分酯
    • US5202431A
    • 1993-04-13
    • US794703
    • 1991-11-20
    • Francesco della ValleAurelio Romeo
    • Francesco della ValleAurelio Romeo
    • A61K8/73A61K9/00A61K47/36A61L15/28A61L17/06A61Q19/00C08B37/08C08L5/08
    • A61K9/0014A61K47/36A61K8/735A61L15/28A61L17/06A61Q19/00C08B37/0072C08L5/08A61Q19/08
    • The invention concerns the esters of hyaluronic acid in which all or only a portion of the carboxylic groups of the acid are esterified, and the salts of the partial esters with metals or with pharmacologically acceptable organic bases. The compounds possess interesting and precious bioplastic and pharmaceutical properties and may be used in innumerable fields, including cosmetics, surgery and medicine. The invention also includes pharmaceutical preparations containing, as an active ingredient, one or more hyaluronic acid esters, or a salt thereof as described above, as well as medicaments containing:1) a pharmacologically active substance or an association of pharmacologically active substances and2) a carrying vehicle containing a total or partial ester of hyaluronic acid. The invention includes also various uses of the hyaluronic esters or of the above mentioned medicaments, such as in medicine, surgery or cosmetics.The invention also relates to a new procedure for the preparation of polysaccharide esters containing carboxylic groups, such as in particular the above mentioned hyaluronic acid esters.
    • 本发明涉及透明质酸的酯,其中所有或仅一部分酸的羧基被酯化,以及偏酯与金属或药理学上可接受的有机碱的盐。 该化合物具有有趣和珍贵的生物塑料和药物性质,可用于无数领域,包括化妆品,手术和药物。 本发明还包括含有如上所述的一种或多种透明质酸酯或其盐的药物制剂,以及含有以下物质的药物:1)药理活性物质或药理活性物质的结合物和2) 载体,其含有透明质酸的全部或部分酯。 本发明还包括透明质酸酯或上述药物的各种用途,例如在医药,手术或化妆品中。 本发明还涉及制备含羧基的多糖酯的新方法,特别是上述透明质酸酯。