pregnenolone उदाहरण वाक्य

The sugar-free ( aglycone ), diosgenin is used for the commercial synthesis of cortisone, pregnenolone, progesterone, and other steroid products.
Pregnenolone, nicknamed preg, is the hormone from which the body makes DHEA, which is then converted into estrogen, testosterone and other vital hormones.
The development of the corpus luteum is accompanied by an increase in the level of the steroidogenic enzyme P450scc that converts cholesterol to pregnenolone in the mitochondria.
As a result, higher levels of 17OH-pregnenolone appear in the blood with adrenocorticotropic hormone ( ACTH ) challenge, which stimulates adrenal corticosteroid synthesis.
In humans the reticularis layer does contain 17 alpha-hydroxylase; this hydroxylates pregnenolone, which is then converted to cortisol by a mixed function oxidase.

Another study found that allopregnanolone levels were increased by 3-fold at 2 hours post-administration following a single 400 mg oral dose of pregnenolone.
"' 17?-Hydroxypregnenolone "'is a pregnane ( C21 ) steroid that is obtained by hydroxylation of pregnenolone at the C17? position.
Although pregnenolone itself does not possess these activities, its metabolite pregnenolone sulfate is a negative allosteric modulator of the pancreatic islets causing calcium entry and subsequent insulin release.
Although pregnenolone itself does not possess these activities, its metabolite pregnenolone sulfate is a negative allosteric modulator of the pancreatic islets causing calcium entry and subsequent insulin release.
Jenapharm developed an alternate process starting from hyodesoxycholic acid extracted from hog bile, from which they first produced pregnenolone, and subsequently progesterone and desoxycorticosterone acetate in 1954 / 1955.