Results 171 to 180 of about 11,673 (224)

Radioimmunoassay of 17-hydroxyprogesterone

Steroids, 1972
Abstract A method is described for the determination of 17-hydroxyprogesterone in peripheral venous plasma (0.1–1.0 ml) from men and women using an antiserum to 17-hydroxyprogesterone-3-carboxymethyl oxime bovine serum albumin (BSA). The coefficients of variation on replicate analyses ranged from 7–16%.
E, Youssefnejadian, E, Florensa, W P, Collins, I F, Sommerville   +3 more
openaire   +2 more sources

Radioimmunoassay of Plasma 17-Hydroxyprogesterone

The Journal of Clinical Endocrinology & Metabolism, 1971
ABSTRACT Plasma 17-hydroxyprogesterone (17-OHP) was measured by radioimmunoassay, using an antibody preparation as specific binding reagent. One ml of plasma, with tritiated 17-OHP added for recovery estimation, was extracted with ether and chromatographed on a microcolumn of Celite.
G E, Abraham, R S, Swerdloff, D, Tulchinsky, K, Hopper, W D, Odell   +4 more
openaire   +2 more sources

Measurement of 17-Hydroxyprogesterone in Human Plasma

The Journal of Clinical Endocrinology & Metabolism, 1968
ABSTRACT A sensitive and precise method, based on the technique of competitive proteinbinding, was developed for measuring 17-hydroxyprogesterone (17-OHP) in peripheral blood. The plasma 17-OHP level in normal men was 95 ng/100 ml±31 (sd). In normal women the plasma 17-OHP level was 42 ng/100 ml±20 (sd) during the follicular phase and 174 ng/100 ml ±46
C A, Strott, M B, Lipsett
openaire   +2 more sources

The production and characterisation of antisera to 17-hydroxyprogesterone

Journal of Steroid Biochemistry, 1987
Sheep were immunised with 11-deoxycortisol-21-hemisuccinate-bovine serum albumin (11-deoxycortisol-21-HS-BSA) or with 17-hydroxyprogesterone-7 alpha-carboxyethyl thioether-keyhole limpet haemocyanin (17-OHP-7 alpha-CETE-KLH) or with 17-OHP-3-(O-carboxymethyl)oxime-KLH (17-OHP-3-CMO-KLH). The resultant antisera were assessed using [3H]17-OHP and dextran-
B A, el-Gamal, J, Landon, R A, Abuknesha, G, Gallacher, L A, Perry   +4 more
openaire   +2 more sources

Amniotic fluid 17-hydroxyprogesterone in early pregnancy

The Journal of Steroid Biochemistry and Molecular Biology, 1994
The results of measurement of 17-hydroxyprogesterone (17-OH-P) in 125 samples of amniotic fluid (AF) from early amniocenteses are presented. The fetuses from all pregnancies studied were unaffected by congenital adrenal hyperphasia caused by 21-hydroxylase deficiency.
J, Sulcová, M, Macek, D, Chudoba, W, Hubl, M, Hill, L, Stárka   +5 more
openaire   +2 more sources

Inhibition of 17,20(17-hydroxyprogesterone)-lyase by progesterone

Steroids, 1975
14C-17-hydroxyprogesterone was incubated with 7000 times g times 20 min supernatants of rat testis homogenates in the presence of various concentrations of 3H-progesterone, both under conditions where metabolism would take place and where it would be prevented.
D K, Mahajan, L T, Samuels
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Comparison of separation techniques in radioimmunoassays for 17-hydroxyprogesterone

Clinica Chimica Acta, 1988
Separation techniques have been studied in the development of a direct radioimmunoassay to determine levels of 17-hydroxyprogesterone in serum. The same highly specific sheep antiserum was used throughout, together with the same amount of 125I-labelled 17-hydroxyprogesterone to which was added sodium salicylate to eliminate interference by endogenous ...
B A, el-Gamal, J, Landon
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SATURATION ASSAYS FOR PLASMA PROGESTERONE AND 17-HYDROXYPROGESTERONE

Acta Endocrinologica, 1970
ABSTRACT Saturation assays for progesterone and 17-hydroxyprogesterone have been discussed. These methods have a sensitivity of 0.06 ng/ml and satisfactory precision and reproducibility for physiologic concentrations. Practical points of technique and a system for analysis of data are presented. Steroids that can be converted to progesterone or
M B, Lipsett, P, Doerr, J A, Bermudez
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17 Hydroxyprogesterone for the Prevention of Preterm Delivery

Obstetrics & Gynecology, 2005
The recent publication of 2 large randomized trials of 17 alpha hydroxyprogesterone caproate (17P) and progesterone suppositories, respectively, for the prevention of premature labor have renewed interest in the use of progesterone to prevent preterm birth.
openaire   +2 more sources