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    • 1. 发明公开
    • 개선된 난세포질내 정자 주입법
    • 改进的减少使用中值的肠内注射的方法,抑制OOCYTE的损害并诱导SPERM HEAD膜的机械损伤
    • KR1020050023483A
    • 2005-03-10
    • KR1020030059730
    • 2003-08-28
    • 재단법인서울대학교산학협력재단
    • 황우석이병천강성근용환율현상환
    • C12M3/10
    • PURPOSE: An improved method of intracytoplasmic sperm injection is provided, thereby reducing the medium amount used, inhibiting damage of oocyte and inducing mechanical damage of the sperm head membrane, so that the fertilization success rate can be improved. CONSTITUTION: An injection pipette having the diameter which is larger than the maximum head diameter of sperms to be introduced into the oocyte cytoplasm and is smaller than the maximum tail diameter of sperms is used in the intracytoplasmic sperm injection(ICSI), wherein the end of the pipette has a plurality of spikes. The improved method of intracytoplasmic sperm injection comprises the steps of: collecting a sperm with the injection pipette; introducing the sperm into the oocyte cytoplasm; and recovering the injection pipette, wherein the sperm head is collected by the tip of the injection pipette.
    • 目的:提供细胞质内精子注射的改进方法,减少使用的培养基,抑制卵母细胞的损伤,诱导精子头膜的机械损伤,从而提高受精成功率。 构成:在细胞质内精子注射(ICSI)中使用直径大于要引入卵母细胞的精子的最大头部直径并且小于精子的最大尾部直径的注射移液管,其中末端 移液管具有多个尖峰。 细胞质内精子注射的改进方法包括以下步骤:用注射移液管收集精子; 将精子引入卵母细胞质中; 并回收注射移液管,其中精子头被注射移液管的尖端收集。
    • 4. 发明公开
    • 사람 에리트로포이에틴을 생산하는 형질전환 복제돼지 및이의 생산 방법
    • 转基因生殖大肠杆菌人尿酸杆菌的数量及其生产相同转基因菌的方法
    • KR1020050022416A
    • 2005-03-08
    • KR1020030060612
    • 2003-08-30
    • 재단법인서울대학교산학협력재단
    • 황우석이병천강성근현상환이갑상김혜수김수정연우남동현전현용염수청김순웅
    • C12N5/16
    • C12N15/8778A01K67/0273A01K2227/108A01K2267/01A61D19/04C12N15/8509C12N2015/8518C12N2517/00
    • PURPOSE: A transgenic cloned pig producing human erythropoietin and a method for producing the same transgenic cloned pig are provided, thereby producing a large quantity of human erythropoietin in the urinary bladder of the transgenic cloned pig with reduced costs. CONSTITUTION: The nuclear transfer embryo produced by a fusion of a pig-derived enucleated oocyte with a nucleus of a pig-derived somatic cell transfected and targeted with a gene encoding human erythropoietin is provided. The transgenic cloned pig expresses human erythropoietin in the urinary bladder of pig. The method for producing a transgenic cloned pig producing human erythropoietin comprises the steps of: (a) transfecting and targeting a gene encoding human erythropoietin into a pig-derived somatic cell line to prepare a nuclear donor cell; (b) removing cumulus cells surrounding a recipient oocyte and then the cytoplasm including the first polar body from the oocyte to prepare a pig-derived enucleated recipient oocyte; (c) transferring the transfected nuclear donor cell into the enucleated recipient oocyte and carrying out cell fusion to generate nuclear transfer embryos; and (d) transplanting the nuclear transfer embryo into a surrogate mother pig to produce live offspring.
    • 目的:提供产生人促红细胞生成素的转基因克隆猪和产生相同转基因克隆猪的方法,从而以降低的成本在转基因克隆猪的膀胱中产生大量人促红细胞生成素。 构成:提供了通过将猪衍生的去核卵母细胞与转染并用编码人红细胞生成素的基因靶向的来源于体细胞的细胞核的融合产生的核转移胚。 转基因克隆猪在猪的膀胱中表达人促红细胞生成素。 生产人促红细胞生成素的转基因克隆猪的方法包括以下步骤:(a)将编码人促红细胞生成素的基因转染并靶向猪衍生的体细胞系以制备核供体细胞; (b)去除卵母细胞周围的卵丘细胞,然后从卵母细胞中除去包括第一极体的细胞质,以制备猪衍生的去核受体卵母细胞; (c)将转染的核供体细胞转移到去核的受体卵母细胞中并进行细胞融合以产生核转移胚胎; 和(d)将核转移胚胎移植到替代母猪中以产生活的后代。