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| Name | Dehydroepiandrosterone | ||||||||||||||||||||||||||||||||||||||||||
| Accession Number | DB01708 (DB06593, EXPT00519) | ||||||||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||||||||
| Groups | nutraceutical | ||||||||||||||||||||||||||||||||||||||||||
| Description | Dehydroepiandrosterone (DHEA) is a major C19 steroid produced by the adrenal cortex. It is also produced in small quantities in the testis and the ovary. Dehydroepiandrosterone (DHEA) can be converted to testosterone; androstenedione; estradiol; and estrone. Most of DHEA is sulfated (dehydroepiandrosterone sulfate) before secretion. In the United States, DHEA or DHEAS have been advertised with claims that they may be beneficial for a wide variety of ailments. DHEA and DHEAS are readily available in the United States, where they are marketed as over-the-counter dietary supplements. In Canada, a prescription is required to buy DHEA. |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Salts | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Brand mixtures | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| CAS number | 53-43-0 | ||||||||||||||||||||||||||||||||||||||||||
| Weight |
Average: 288.4244 Monoisotopic: 288.20893014 |
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| Chemical Formula | C19H28O2 | ||||||||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=FMGSKLZLMKYGDP-USOAJAOKSA-N | ||||||||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C19H28O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h3,13-16,20H,4-11H2,1-2H3/t13-,14-,15-,16-,18-,19-/m0/s1
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| IUPAC Name |
(1S,2R,5S,10R,11S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-14-one
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| SMILES |
[H][C@@]12CCC(=O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CC=C2C[C@@]([H])(O)CC[C@]12C
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| Mass Spec | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||||||||
| Kingdom | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Classes | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Substructures | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Pharmacology | |||||||||||||||||||||||||||||||||||||||||||
| Indication | DHEA is taken as a supplement for a variety of unsubstantiated indications. The following indications have shown promise and are backed up by some scientific evidence: schizophrenia (DHEA may be more effective in women than men); improving the appearance of older people’s skin (taking DHEA by mouth seems to increase skin thickness and moisture, and decrease facial “age spots” in elderly men and women); improving ability to achieve an erection in men with sexual dysfunction. Additionally, DHEA has shown promise in improving symptoms of lupus (SLE). Taking DHEA by mouth along with conventional treatment may help reduce the number of times symptoms flare up and may allow a reduction in the dose of prescription drugs needed. DHEA may also help SLE symptoms such as muscle ache and mouth ulcers. DHEA also seems to strengthen bones in SLE patients being treated with high-dose steroids (corticosteroids). DHEA also shows promise in the treatment of osteoporosis. Taking DHEA by mouth daily seems to improve bone mineral density (BMD) in older women and men with osteoporosis or osteopenia (pre-osteoporosis). DHEA may also increase BMD in young women with the eating disorder called anorexia nervosa. DHEA is often prescribed in India for the induction of ovulation to improve chances of pregnancy. | ||||||||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | DHEA is naturally produced from cholesterol through two cytochrome P450 enzymes. Cholesterol is converted to pregnenolone by the enzyme P450 scc (side chain cleavage); then another enzyme, CYP17A1, converts pregnenolone to 17α-Hydroxypregnenolone and then to DHEA. Regular exercise is known to increase DHEA production in the body. Calorie restriction has also been shown to increase DHEA in primates. Some theorize that the increase in endogenous DHEA brought about by calorie restriction is partially responsible for the longer life expectancy known to be associated with calorie restriction. | ||||||||||||||||||||||||||||||||||||||||||
| Mechanism of action | DHEA can be understood as a prohormone for the sex steroids. DHEAS may be viewed as buffer and reservoir. As most DHEA is produced by the zona reticularis of the adrenal cortex, it is argued that there is a role in the immune and stress response. As almost all DHEA is derived from the adrenal glands, blood measurements of DHEAS/DHEA are useful to detect excess adrenal activity as seen in adrenal cancer or hyperplasia, including certain forms of congenital adrenal hyperplasia. Women with polycystic ovary syndrome tend to have elevated levels of DHEAS. | ||||||||||||||||||||||||||||||||||||||||||
| Absorption | Following a 50-mg DHEA PO dose in cynomolgus monkeys, systemic availability was only 3.1 +/- 0.4%. [PMID: 12970301] | ||||||||||||||||||||||||||||||||||||||||||
| Volume of distribution | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Protein binding | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Metabolism | Hepatic. As shown by their high conversion ratios (in a study involving cynomolgus monkeys), the major circulating metabolites of DHEA are DHEA-S, androsterone glucuronide, and androstane-3 alpha,17 beta-diol-glucuronide. [PMID: 12970301] | ||||||||||||||||||||||||||||||||||||||||||
| Route of elimination | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Half life | 12 hours | ||||||||||||||||||||||||||||||||||||||||||
| Clearance | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Toxicity | Acute oral toxicity (LD50): >10000 mg/kg [Rat]. Lowest Published Toxic Dose (TDL) [Man] - Route: Oral; Dose: 10 mg/kg/2W intermittent. | ||||||||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Manufacturers | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Packagers | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Properties | |||||||||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| General Reference |
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| ATC Codes |
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| AHFS Codes | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| FDA label | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| MSDS | show (19.8 KB) | ||||||||||||||||||||||||||||||||||||||||||
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| Drug Interactions | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Food Interactions | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Targets |
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Pharmacological action: unknown
A 3-oxo-Delta(5)-steroid = a 3-oxo-Delta(4)- steroid Organism class: bacterialUniProt ID: P07445 ![]() Gene: ksi Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: unknown
Catalyzes the sulfation of steroids and bile acids in the liver and adrenal glands Organism class: humanUniProt ID: Q06520 ![]() Gene: SULT2A1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: unknown
Cholesterol + O(2) = cholest-4-en-3-one + H(2)O(2) Organism class: bacterialUniProt ID: P22637 ![]() Gene: choB Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
4. Estradiol 17-beta-dehydrogenase 1 Pharmacological action: unknownFavors the reduction of estrogens and androgens. Also has 20-alpha-HSD activity. Uses preferentially NADH Organism class: humanUniProt ID: P14061 ![]() Gene: HSD17B1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
5. Sulfotransferase family cytosolic 2B member 1 Pharmacological action: unknownCatalyzes the sulfate conjugation of many hormones, neurotransmitters, drugs and xenobiotic compounds. Sulfonation increases the water solubility of most compounds, and therefore their renal excretion, but it can also result in bioactivation to form active metabolites. Sulfates hydroxysteroids like DHEA. Isoform 1 preferentially sulfonates cholesterol, and isoform 2 avidly sulfonates pregnenolone but not cholesterol Organism class: humanUniProt ID: O00204 ![]() Gene: SULT2B1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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Actions: substrate
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide UniProt ID: P08684![]() Gene: CYP3A4 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics UniProt ID: P24462![]() Gene: CYP3A7 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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