The development of a radioimmunoassay system for testosterone (T) and dihydrotestosterone (DHT). Part 3. The preparation of radioiodinated testosterone.
Endocrinologie
; 28(3-4): 127-38, 1990.
Article
en En
| MEDLINE
| ID: mdl-2103971
A two step-method was applied for the preparation of a tracer adequate for a radioimmunoassay (RIA) system for testosterone. Histamine was radioiodinated by the Chloramine-T method and then coupled to testosterone-3-carboxymethyl-oxime (T-3-CMO) derivative. After purification by TLC, the steroid tracer was stable in ethanol for at least four months. Using an anti-T-3-CMO-BSA serum, a (bridge) homologous RIA system for testosterone was developed. The reagents (antiserum, tracer and standard) were incubated 2 hrs at 37 degrees C and then the free radioactivity was removed by a dextran-charcoal suspension. The testosterone RIA system, with the sensitivity of 30 pg/tube, is suitable for the measurement of the steroid hormone in biological fluids and tissues.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dihidrotestosterona
/
Testosterona
/
Radioinmunoensayo
/
Radioisótopos de Yodo
Límite:
Animals
Idioma:
En
Revista:
Endocrinologie
Año:
1990
Tipo del documento:
Article
País de afiliación:
Rumanía
Pais de publicación:
Rumanía