Erythropoietin assay in mice made polycythemic by transfusion of heterologous red cells
Acta physiol. pharmacol. ther. latinoam
;
49(3): 189-94, 1999. graf
Article
Dans Anglais
| LILACS
| ID: lil-246058
RESUMO
A simple in vivo bioassay suitable testing of quality control of recombinant human erythropoietin (rHu-EPO) analogues was developed. Mice made polycythemic by intraperitoneal injection of 1.2 ml of a 80 per cent suspension of heterologous (rat) red cells were used as assay animals and splenic 59 Fe uptke as expression of the response to rHu-EPO. The assay took three days and the following schedule is propose 1)intraperitoneal injection of 1.2 ml of washed packed red cells obtained from donor rats, 2) subcutaneous injection of test material 4-5 h after transfusion, 3) intravenous administration of 59 Fe tracer 48 h later, and 4) determination of splenic isotope uptake 6 h after injection. This method for the in vivo biossay of rHu-EPO analogues is an economical and reliable alternative to the existing bioassays of the hormone
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Indice:
LILAS (Amériques)
Sujet Principal:
Polyglobulie
/
Érythropoïétine
/
Transfusion d'érythrocytes
Type d'étude:
Etude d'étiologie
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Acta physiol. pharmacol. ther. latinoam
Thème du journal:
Pharmacologie
/
Physiologie
/
Thérapeutique
Année:
1999
Type:
Article
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