プレグネノロン

解説(3β)-3-hydroxypregn-5-en-20-one．C21H32O2(316.48)．プレグネノロンは，コレステロール，ジオスゲニン，スチグマステロールなどから合成される．無色の針状結晶．融点190 ℃．[α]D＋28°(エタノール)．クロロホルムに可溶，エタノールに微溶，ベンゼン，石油エーテルに難溶．副じん皮質ホルモン，プロゲステロンなどの合成で重要な中間体である．森北出版「化学辞典（第2版）

用途プレグネノロン (pregnenolone) は、プロゲステロン、コルチコイド、アンドロゲン、およびエストロゲンのステロイド生成にかかわるプロホルモンである。

用途プレグネノロンは体内であらゆるホルモンに変換されるプロホルモンである。

説明Pregnenolone serves as the common precursor in the formation of the adrenocorticoids and other steroid hormones. This C21 steroid is converted via enzymatic oxidations and isomerization of the double bond to a number of physiologically active C21 steroids, including the female sex hormone progesterone and the adrenocorticoids hydrocortisone (cortisol), corticosterone, and aldosterone. Oxidative cleavage of the two-carbon side chain of pregnenolone and subsequent enzymatic oxidations and isomerization lead to C19 steroids, including the androgens testosterone and dihydrotestosterone. The final group of steroids, the C18 female sex hormones, are derived from oxidative aromatization of the A ring of androgens to produce estrogens.

使用Pregnenolone is a steroid hormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens. As such it is a prohormone. Pregnenolone is a GABAA an tagonist and increases neurogenesis in the hippocampus. It is a modulator of cytochrome P 450-3A

一般的な説明Pregnenolone is an endogenous steroid hormone involved in the biological synthesis of other hormones. Pregnenolone is monitored as an ancillary test for congenital adrenal hyperplasia (CAH), particularly in situations where diagnosis of 21-hydroxylase and 11-hydroxylase deficiency has been ruled out. This Certified Spiking Solution is suitable for use in LC-MS/MS testing methods as a starting material in the preparation of calibrators, controls and linearity standards.