Classification Term: 1417
20-oxosteroids (ontology term: CHEMONTID:0003058)
Steroid derivatives carrying a C=O group at the 20-position of the steroid skeleton." []
found 12 associated metabolites at category metabolite taxonomy ontology rank level.
Ancestor: Oxosteroids
Child Taxonomies: There is no child term of current ontology term.
16-Dehydroprogesterone
16-Dehydroprogesterone, also known as delta.16-progesterone, belongs to the class of organic compounds known as 20-oxosteroids. These are steroid derivatives carrying a C=O group at the 20-position of the steroid skeleton. Thus, 16-dehydroprogesterone is considered to be a steroid lipid molecule. 16-Dehydroprogesterone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Prometrium is a brand of micronized progesterone. It is used as a prescription drug in hormone replacement therapy. [HMDB] D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones 16-Dehydroprogesterone is a steroidal progestin.
(3beta,5alpha)-3-Hydroxypregn-16-en-20-one
(3beta,5alpha)-3-Hydroxypregn-16-en-20-one is found in garden tomato. (3beta,5alpha)-3-Hydroxypregn-16-en-20-one is isolated from Lycopersicon esculentum (tomato Isolated from Lycopersicon esculentum (tomato). (3beta,5alpha)-3-Hydroxypregn-16-en-20-one is found in garden tomato. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
Lucidone C
Lucidone C is found in mushrooms. Lucidone C is a metabolite of Ganoderma lucidum (reishi). Metabolite of Ganoderma lucidum (reishi). Lucidone C is found in mushrooms.
11beta,20-Dihydroxy-3-oxopregn-4-en-21-oic acid
11b,20-dihydroxy-3-oxopregn-4-en-21-oic acid or DHOPA is a major metabolite of corticosterone that is typically elevated in the liver. The in vivo conversion of corticosterone to DHOPA is thought to proceed via the aldehyde intermediate 11b-hydroxy-3,20-dioxopregn-4-en-21-al. Cytochrome P450 3A4 (CYP3A4), is known to convert corticosterone to the gem-diol form of the aldehyde. Because CYP3A4 is highly abundant in the liver, the conversion of corticosterone to its aldehyde presumably occurs readily, and the formation of DHOPA by isomerization of the aldehyde. DHOPA has also been identified as a biomarker that is elevated (50 X) in animals that have been treated with PPARalpha agonists. Peroxisome proliferator-activated receptor alpha (PPARalpha) is a nuclear receptor with manifold effects on intermediary metabolism (PMID: 17550978). [HMDB] 11b,20-dihydroxy-3-oxopregn-4-en-21-oic acid or DHOPA is a major metabolite of corticosterone that is typically elevated in the liver. The in vivo conversion of corticosterone to DHOPA is thought to proceed via the aldehyde intermediate 11b-hydroxy-3,20-dioxopregn-4-en-21-al. Cytochrome P450 3A4 (CYP3A4), is known to convert corticosterone to the gem-diol form of the aldehyde. Because CYP3A4 is highly abundant in the liver, the conversion of corticosterone to its aldehyde presumably occurs readily, and the formation of DHOPA by isomerization of the aldehyde. DHOPA has also been identified as a biomarker that is elevated (50 X) in animals that have been treated with PPARalpha agonists. Peroxisome proliferator-activated receptor alpha (PPARalpha) is a nuclear receptor with manifold effects on intermediary metabolism (PMID: 17550978).
7-Dehydropregnenolone
7-Dehydropregnenolone is a 21-carbon steroid, derived from cholesterol and found in steroid hormone-producing tissues. It is the precursor to Gonadal steroid hormones and the adrenal corticosteroid. 7-Dehydropregnenolone is the the single product of metabolism of 7-dehydrocholesterol by CYP11A1 (PMID 14657394). 7-Dehydropregnenolone is a 21-carbon steroid, derived from cholesterol and found in steroid hormone-producing tissues. It is the precursor to Gonadal steroid hormones and the adrenal corticosteroid. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones
Rimexolone
Rimexolone is only found in individuals that have used or taken this drug. It is a glucocorticoid steroid used to treat inflammation in the eye. It is marketed as a 1\\% eye drop solution under the trade name VexolRimexolone is a glucocorticoid receptor agonist. The antiinflammatory actions of corticosteroids are thought to involve lipocortins, phospholipase A2 inhibitory proteins which, through inhibition of arachidonic acid, control the biosynthesis of prostaglandins and leukotrienes. By binding to the glucocorticoid receptor, this drug ultimately leads to changes in genetic transcription involving the lipocortins and prostaglandins.
Pregna-5,16-dien-20-one, 3beta-hydroxy-
Promegestone
Trimegestone
Ulipristal
C28H35NO3 (433.26168000000007)
(5alpha)-23-Methyl-4-aza-21-norchol-1-ene-3,20-dione
3beta-Hydroxypregna-5,16-dien-20-one
3beta-hydroxypregna-5,16-dien-20-one, also known as 16-dehydropregnenolone or 5,16-pregnadien-3beta-ol-20-one, is a member of the class of compounds known as 20-oxosteroids. 20-oxosteroids are steroid derivatives carrying a C=O group at the 20-position of the steroid skeleton. Thus, 3beta-hydroxypregna-5,16-dien-20-one is considered to be a steroid lipid molecule. 3beta-hydroxypregna-5,16-dien-20-one is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 3beta-hydroxypregna-5,16-dien-20-one can be found in fenugreek, which makes 3beta-hydroxypregna-5,16-dien-20-one a potential biomarker for the consumption of this food product.