会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明申请
    • FIBROUS SUBSTRATES FOR CELL PROPAGATION AND DIFFERENTIATION
    • 纤维基质用于细胞传播和分化
    • US20130295637A1
    • 2013-11-07
    • US13814501
    • 2011-08-05
    • Hongfang LuAndrew Chwee Aun WanJackie Y. YingKarthikeyan Narayanan
    • Hongfang LuAndrew Chwee Aun WanJackie Y. YingKarthikeyan Narayanan
    • C12N11/04
    • C12N11/04C12N5/0012C12N5/0606C12N2533/72C12N2533/74
    • The present invention relates to a method of releasably encapsulating pluripotent embryonic stem cells in a degradable continuous polyionic fiber for tissue culture, wherein the encapsulated embryonic stem cells are able to maintain a pluripotent phenotype in tissue culture; the method comprising (a) contacting an aqueous solution of a polyanion with an aqueous solution of a polycation to form an interface between the aqueous solution of polyanion and the aqueous solution of polycation, and wherein the aqueous solution of polyanion or the aqueous solution of polycation or both the aqueous solution of polyanion and the aqueous solution of polycation comprises a suspension of pluripotent embryonic stem cells; (b) drawing a continuous polyionic fiber which comprises encapsulated pluripotent embryonic stem cells from the interface; (c) passing the continuous polyionic fiber comprising encapsulated pluripotent embryonic stem cells in a continuous process through a solution which reduces secondary complexation of the components of the polyionic fiber.
    • 本发明涉及一种将多能胚胎干细胞可释放地包封在用于组织培养的可降解连续聚离子纤维中的方法,其中包封的胚胎干细胞能够在组织培养中保持多能表型; 该方法包括(a)将聚阴离子的水溶液与聚阳离子水溶液接触以形成聚阴离子水溶液与聚阳离子水溶液之间的界面,并且其中聚阴离子水溶液或聚阳离子水溶液 或聚阴离子水溶液和聚阳离子水溶液两者均包含多能胚胎干细胞的悬浮液; (b)从界面绘制包含多能胚胎干细胞的连续聚离子纤维; (c)使包含多能胚胎干细胞的连续聚离子纤维在连续过程中通过减少聚离子纤维组分的次级络合的溶液。
    • 8. 发明授权
    • Cinnamic acid 4-hydroxylase
    • 肉桂酸4-羟化酶
    • US07868153B2
    • 2011-01-11
    • US11452342
    • 2006-06-14
    • Gefu Wang-PruskiSandra CantleKarthikeyan Narayanan
    • Gefu Wang-PruskiSandra CantleKarthikeyan Narayanan
    • A01H5/00A01H5/04C12Q1/68C12P19/34C12N15/29
    • C12N15/8243C12N9/0073C12N15/8279
    • After-cooking darkening is a gray-black discoloration of the potato tuber, formed after cooking by the oxidation of an iron-chlorogenic acid complex. Cinnamic acid 4-hydroxylase (C4H) is a key enzyme involved in the biosynthesis of chlorogenic acid. The full-length c4h gene was cloned and sequenced from both genomic DNA and cDNA of Russet Burbank tuber tissue by PCR and 5′ and 3′ RACE. The gene expression levels of c4h were examined by Northern hybridization, relative quantitative RT-PCR and real time quantitative RT-PCR in potato cultivars and wide selection of diploid clones varying in susceptibility to after-cooking darkening. Results suggest that there is a relationship between the levels of c4h gene expression and the degree of after-cooking darkening in potato tubers. The inhibition of C4H gene expression and over expression of C4H expression were also examined. The successful inhibition of the gene expression will lead to the reduced biosynthesis of chlorogenic acid, reducing the susceptibility of after-cooking darkening. The successful overexpression of the C4H gene will lead to the increase in the chlorogenic acid in plant tissues, gaining the resistance to diseases. In addition, due to the natural antioxidant activity of chlorogenic acid, overexpression of C4H gene will lead to its over production in plant tissues, such as potato tubers.
    • 烹饪后的变黑是通过铁 - 绿原酸络合物的氧化烹饪后形成的马铃薯块茎的灰黑色变色。 肉桂酸4-羟化酶(C4H)是涉及绿原酸生物合成的关键酶。 通过PCR和5'和3'RACE克隆和测序来自Russet Burbank块茎组织的基因组DNA和cDNA的全长c4h基因。 通过Northern杂交,相对定量RT-PCR和马铃薯品种实时定量RT-PCR检测c4h的基因表达水平,并对广泛选择的二倍体克隆进行了广泛的选择,这些变异对烹饪后变暗的敏感性变化。 结果表明,c4h基因表达水平与马铃薯块茎后期蒸煮程度之间存在一定的关系。 还检查了C4H基因表达的抑制和C4H表达的过表达。 基因表达的成功抑制将导致绿原酸的生物合成减少,降低了后烹调变深度的敏感性。 C4H基因的成功过表达将导致植物组织中绿原酸的增加,获得抗病能力。 此外,由于绿原酸的天然抗氧化活性,C4H基因的过表达将导致植物组织如马铃薯块茎过度生产。
    • 9. 发明申请
    • Cinnamic acid 4-hydroxylase
    • 肉桂酸4-羟化酶
    • US20070163006A1
    • 2007-07-12
    • US11452342
    • 2006-06-14
    • Gefu Wang-PruskiSandra CantleKarthikeyan Narayanan
    • Gefu Wang-PruskiSandra CantleKarthikeyan Narayanan
    • A01H5/00C07H21/02C12N15/82
    • C12N15/8243C12N9/0073C12N15/8279
    • After-cooking darkening is a gray-black discoloration of the potato tuber, formed after cooking by the oxidation of an iron-chlorogenic acid complex. Cinnamic acid 4-hydroxylase (C4H) is a key enzyme involved in the biosynthesis of chlorogenic acid. The full-length c4h gene was cloned and sequenced from both genomic DNA and cDNA of Russet Burbank tuber tissue by PCR and 5′ and 3′ RACE. The gene expression levels of c4h were examined by Northern hybridization, relative quantitative RT-PCR and real time quantitative RT-PCR in potato cultivars and wide selection of diploid clones varying in susceptibility to after-cooking darkening. Results suggest that there is a relationship between the levels of c4h gene expression and the degree of after-cooking darkening in potato tubers. The inhibition of C4H gene expression and over expression of C4H expression were also examined. The successful inhibition of the gene expression will lead to the reduced biosynthesis of chlorogenic acid, reducing the susceptibility of after-cooking darkening. The successful overexpression of the C4H gene will lead to the increase in the chlorogenic acid in plant tissues, gaining the resistance to diseases. In addition, due to the natural antioxidant activity of chlorogenic acid, overexpression of C4H gene will lead to its over production in plant tissues, such as potato tubers.
    • 烹饪后的变黑是通过铁 - 绿原酸络合物的氧化烹饪后形成的马铃薯块茎的灰黑色变色。 肉桂酸4-羟化酶(C4H)是涉及绿原酸生物合成的关键酶。 通过PCR和5'和3'RACE克隆和测序来自Russet Burbank块茎组织的基因组DNA和cDNA的全长c4h基因。 通过Northern杂交,相对定量RT-PCR和马铃薯品种实时定量RT-PCR检测c4h的基因表达水平,并对广泛选择的二倍体克隆进行了广泛的选择,这些变异对烹饪后变暗的敏感性变化。 结果表明,c4h基因表达水平与马铃薯块茎后期蒸煮程度之间存在一定的关系。 还检查了C4H基因表达的抑制和C4H表达的过表达。 基因表达的成功抑制将导致绿原酸的生物合成减少,降低了后烹调变深度的敏感性。 C4H基因的成功过表达将导致植物组织中绿原酸的增加,获得抗病能力。 此外,由于绿原酸的天然抗氧化活性,C4H基因的过表达将导致植物组织如马铃薯块茎过度生产。