… glycol as described previously [l]; and, aliquots (l/10) of the fractions collected were assayed
for radioactivity by scintillation spectrometry. The counting efficiency for tritium was 40% and …

The metabolism of tritium-labeled androstenedione by human platelets was studied in vitro.
The following metabolites were identified: testosterone, 5α-androstane-3,17-dione, …

The metabolism of estrone sulfate and dehydroisoandrosterone sulfate to the free, unconjugated
steroids, estrone and dehydroisoandrosterone, was demonstrated in more than thirty …

The interconversion of oestrone and oestradiol, androstenedione and testosterone, and
dehydroepi-androsterone and 5-androstene-3β,17β-diol in mammalian tissues is catalysed by …

… employing procedures described by Milewich and associates8 and by Gomez-Sanchez and
associates9 The data were analyzed … L.: Twenty-four hour Dattem of the episodic secretion …

Estrogen 16α-hydroxylase activity was measured in microsomes prepared from fetal tissues
of first and second trimester human abortuses using [16α- (3) H]estrone sulfate as substrate …

… ascertained by the formation of androsterone (0.6 pmol/lx 10’ lymphocytes x 4 h); and 3/l-hydroxysteroid
oxidoreductase as evidenced by the formation of isoandrosterone (0.6 pmol/lx …

The extra-adrenal formation of deoxycorticosterone (DOC) from plasma progesterone has
been demonstrated in humans. In those studies it was shown that in some persons the volume …

The activation of placental AC by either Mg 2+ or Mn 2+ , in the presence and absence of NaF,
followed sigmoidal saturation kinetics. Mn 2+ enhanced maximally the NaF-stimulated Mg …

… The marked inhibition of aromatase activity by high concentration l of ascorbic acid (Type
II inhibition) appeared to be related to these pH changes. We propose that the mechanism of …