Solid phase fluoroimmunoassay for 11-deoxycortisol in serum using 21-amino-17-hydroxyprogesterone
摘要:
Solid phase fluoroimmunoassay of serum 11-deoxycortisol (17,21-dihydroxy-4-pregnene-3,20-dione) was established using fluorescein isothiocyanate-labelled 11-deoxycortisol and anti-11-deoxycortisol antibody-conjugated polyacrylamide beads. 21-Amino-17-hydroxyprogesterone (21-amino-17-hydroxy-4-pregnene-3,20-dione) was synthesized as a useful derivative for preparing the fluorescent dye conjugate. Serum 11-deoxycortisol was measured with this assay system after extraction and purification by Sephadex LH-20 column chromatography. The minimal amount of 11-deoxycortisol detected was 40 pg/tube and the measurable range was from 0.04 to 5.0 microgram/dl. Intra- and inter-assay coefficients of variation were 8.3% (n=6) and 9.8% (n=5), respectively. 11-deoxycortisol values determined by the present assay correlated well with those determined by radioimmunoassay. The present assay is particularly suitable for estimating the conditions of the pituitary and adrenocortical functions.
Solid phase fluoroimmunoassay for 11-deoxycortisol in serum using 21-amino-17-hydroxyprogesterone
摘要:
Solid phase fluoroimmunoassay of serum 11-deoxycortisol (17,21-dihydroxy-4-pregnene-3,20-dione) was established using fluorescein isothiocyanate-labelled 11-deoxycortisol and anti-11-deoxycortisol antibody-conjugated polyacrylamide beads. 21-Amino-17-hydroxyprogesterone (21-amino-17-hydroxy-4-pregnene-3,20-dione) was synthesized as a useful derivative for preparing the fluorescent dye conjugate. Serum 11-deoxycortisol was measured with this assay system after extraction and purification by Sephadex LH-20 column chromatography. The minimal amount of 11-deoxycortisol detected was 40 pg/tube and the measurable range was from 0.04 to 5.0 microgram/dl. Intra- and inter-assay coefficients of variation were 8.3% (n=6) and 9.8% (n=5), respectively. 11-deoxycortisol values determined by the present assay correlated well with those determined by radioimmunoassay. The present assay is particularly suitable for estimating the conditions of the pituitary and adrenocortical functions.
Über Steroide. 99. Mitteilung. Ein einfacher zur Bereitung von Corticosteroiden mit Dioxyaceton-Seitenkette, ausgehend von 17-etonen. Neue Teilsynthese von<i>Reichsteins</i>Substanz S
作者:K. Miescher、J. Schmidlin
DOI:10.1002/hlca.19500330653
日期:——
Ausgehend von Dehydro-3β-androsteron wird ein einfacher Weg zurGewinnungvonVerbindungen vom Typus der Reichstein'schen Substanz S mit einer Dioxyaceton-Seitenkette beschrieben. Es wird ferner über die Bereitung des noch unbekannten Δ4-3,20-Diketopregen-21-als berichtet.