In vitro study of urease/AlaDH enzyme system encapsulated into human erythrocytes and research into its medical applications

被引:10
作者
Baysal, SH [1 ]
Uslan, AH [1 ]
机构
[1] Ege Univ, Fac Sci, Dept Biochem, TR-35100 Izmir, Turkey
来源
ARTIFICIAL CELLS BLOOD SUBSTITUTES AND IMMOBILIZATION BIOTECHNOLOGY | 2002年 / 30卷 / 01期
关键词
D O I
10.1081/BIO-120002729
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
In our system, urease/AlaDH have been encapsulated within erythrocytes by using slow dialysis methods. Urea is decomposed into ammonia and bicarbonate and the ammonia released is converted into alanine by reacting pyruvate under the catalytic action of AlaDH. It is very important for our that products are formed quickly but the ammonia is not connected definetely. For this aim. urease/AlaDH we encapsulated using different enzyme activity ratio (0.5:1.5; 0.5:2.5; 0.25:1.25 U/U urease/AlaDH). The activities of enzyme systems, encapsulation yield, McV, McH, and McHc were measured for each sample. Investigated results suggest that loaded enzyme systems can be used as potential carrier systems for the removal of high levels of urea from blood.
引用
收藏
页码:71 / 77
页数:7
相关论文
共 21 条
  • [1] ARAS K, 1975, KLIN BIYOKIMIYA ANKA, V2, P245
  • [2] Baysal SH, 2000, ARTIF CELL BLOOD SUB, V28, P263
  • [3] BAYSAL SH, IN PRESS ARTIF CELLS
  • [4] ENZYME REPLACEMENT THERAPY IN GAUCHERS-DISEASE - PRELIMINARY CLINICAL-TRIAL OF A NEW ENZYME PREPARATION
    BEUTLER, E
    DALE, GL
    GUINTO, E
    KUHL, W
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1977, 74 (10) : 4620 - 4623
  • [5] HIGH-YIELD ENTRAPMENT OF PROTEINS INTO ERYTHROCYTES
    DALE, GL
    VILLACORTE, DG
    BEUTLER, E
    [J]. BIOCHEMICAL MEDICINE, 1977, 18 (02): : 220 - 225
  • [6] DIALYSIS PROCEDURE FOR LOADING ERYTHROCYTES WITH ENZYMES AND LIPIDS
    DELOACH, J
    IHLER, G
    [J]. BIOCHIMICA ET BIOPHYSICA ACTA, 1977, 496 (01) : 136 - 145
  • [7] EFFECT OF GLUTARALDEHYDE TREATMENT ON ENZYME-LOADED ERYTHROCYTES
    DELOACH, J
    PETERS, S
    PINKARD, O
    GLEW, R
    IHLER, G
    [J]. BIOCHIMICA ET BIOPHYSICA ACTA, 1977, 496 (02) : 507 - 515
  • [8] DELOACH JR, 1994, CARRIER BIOREACTOR R
  • [9] Ebrahim A, 1996, CYTOMETRY, V25, P156, DOI 10.1002/(SICI)1097-0320(19961001)25:2<156::AID-CYTO4>3.0.CO
  • [10] 2-F