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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 161 (1973), S. 289-297 
    ISSN: 1433-8580
    Keywords: D-penicillamine ; L-cysteine ; Serum proteins ; Rat ; D-Penicillamin ; L-Cystein ; Serumproteine ; Ratte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In vitro-Untersuchungen zeigten, daß D-Penicillamin durch Serumproteine, in erster Linie durch Albumin, gebunden wird. Aller Wahrscheinlichkeit nach ist die Bildung gemischter Disulfide hierfür verantwortlich. Cystin, L-Cystein und andere Thiole sowie N-Äthylmaleinimid hemmen die Proteinbindung von D-Penicillamin. Verabfolgt man Ratten vor Injektion des D-Penicillamins L-Cystein, resultiert eine vorübergehende Erhöhung des Gehalts an freiem D-Penicillamin in Serum und in einigen Geweben, während die Ausscheidung mit dem Urin verzögert wird. Die theoretische und praktische Bedeutung der Befunde wird diskutiert.
    Notes: Summary Studiesin vitro show that D-penicillamine is bound by serum proteins, mainly albumin; the formation of a mixed disulfide is the most likely explanation. Cystine, L-cysteine and other thiols as well as N-ethylmaleinimide were found to inhibit the protein binding of D-penicillamine. Administration of L-cysteine to rats prior to D-penicillamine brings about a transient increase of the amount of free D-penicillamine in serum and in some tissues as well as a delay in its urinary excretion. The theoretical and practical implications of the findings are discussed.
    Type of Medium: Electronic Resource
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