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| Name | Paramethasone | ||||||||||||||||||||||||||||||||||||||||||
| Accession Number | DB01384 | ||||||||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||||||||
| Groups | approved | ||||||||||||||||||||||||||||||||||||||||||
| Description | A glucocorticoid with the general properties of corticosteroids. It has been used by mouth in the treatment of all conditions in which corticosteroid therapy is indicated except adrenal-deficiency states for which its lack of sodium-retaining properties makes it less suitable than hydrocortisone with supplementary fludrocortisone. (From Martindale, The Extra Pharmacopoeia, 30th ed, p737) |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Synonyms | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Salts | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Brand names |
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| Brand mixtures | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| CAS number | 53-33-8 | ||||||||||||||||||||||||||||||||||||||||||
| Weight |
Average: 392.4611 Monoisotopic: 392.199902243 |
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| Chemical Formula | C22H29FO5 | ||||||||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=MKPDWECBUAZOHP-AFYJWTTESA-N | ||||||||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C22H29FO5/c1-11-6-14-13-8-16(23)15-7-12(25)4-5-20(15,2)19(13)17(26)9-21(14,3)22(11,28)18(27)10-24/h4-5,7,11,13-14,16-17,19,24,26,28H,6,8-10H2,1-3H3/t11-,13+,14+,16+,17+,19-,20+,21+,22+/m1/s1
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| IUPAC Name |
(1S,2R,8S,10S,11S,13R,14R,15S,17S)-8-fluoro-14,17-dihydroxy-14-(2-hydroxyacetyl)-2,13,15-trimethyltetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-3,6-dien-5-one
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| SMILES |
[H][C@@]12C[C@@H](C)[C@](O)(C(=O)CO)[C@@]1(C)C[C@H](O)[C@@]1([H])[C@@]2([H])C[C@]([H])(F)C2=CC(=O)C=C[C@]12C
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| Mass Spec | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||||||||
| Kingdom | Organic | ||||||||||||||||||||||||||||||||||||||||||
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| Substructures |
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| Pharmacology | |||||||||||||||||||||||||||||||||||||||||||
| Indication | For the treatment of all conditions in which corticosteroid therapy is indicated except adrenal-deficiency states for which its lack of sodium-retaining properties makes it less suitable than hydrocortisone with supplementary fludrocortisone. | ||||||||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | Paramethasone is a glucocorticoid with the general properties of corticosteroids. Glucocorticoids are a class of steroid hormones characterised by an ability to bind with the cortisol receptor and trigger a variety of important cardiovascular, metabolic, immunologic and homeostatic effects. Glucocorticoids are distinguished from mineralocorticoids and sex steroids by having different receptors, target cells, and effects. Technically, the term corticosteroid refers to both glucocorticoids and mineralocorticoids, but is often used as a synonym for glucocorticoid. Glucocorticoids suppress cell-mediated immunity. They act by inhibiting genes that code for the cytokines IL-1, IL-2, IL-3, IL-4, IL-5, IL-6, IL-8 and TNF-alpha, the most important of which is the IL-2. Reduced cytokine production limits T cell proliferation. Glucocorticoids also suppress humoral immunity, causing B cells to express lower amounts of IL-2 and IL-2 receptors. This diminishes both B cell clonal expansion and antibody synthesis. The diminished amounts of IL-2 also leads to fewer T lymphocyte cells being activated. | ||||||||||||||||||||||||||||||||||||||||||
| Mechanism of action | Glucocorticoids such as paramethasone can inhibit leukocyte infiltration at the site of inflammation, interfere with mediators of inflammatory response, and suppress humoral immune responses. The antiinflammatory actions of glucocorticoids are thought to involve phospholipase A2 inhibitory proteins, lipocortins, which control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes. Paramethasone reduces inflammatory reaction by limiting the capillary dilatation and permeability of the vascular structures. These compounds restrict the accumulation of polymorphonuclear leukocytes and macrophages and reduce the release of vasoactive kinins. Recent research suggests that corticosteroids may inhibit the release of arachidonic acid from phospholipids, thereby reducing the formation of prostaglandins. Prednisolone is a glucocorticoid receptor agonist. On binding, the corticoreceptor-ligand complex translocates itself into the cell nucleus, where it binds to many glucocorticoid response elements (GRE) in the promoter region of the target genes. The DNA bound receptor then interacts with basic transcription factors, causing an increase or decrease in expression of specific target genes, including suppression of IL2 (interleukin 2) expression. | ||||||||||||||||||||||||||||||||||||||||||
| Absorption | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Volume of distribution | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Protein binding | 80% | ||||||||||||||||||||||||||||||||||||||||||
| Metabolism | Hepatic. | ||||||||||||||||||||||||||||||||||||||||||
| Route of elimination | Corticosteroids are metabolized primarily in the liver and are then excreted by the kidneys. Some of the topical corticosteroids and their metabolites are also excreted into the bile. | ||||||||||||||||||||||||||||||||||||||||||
| Half life | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Clearance | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Toxicity | Side effects include inhibition of bone formation, suppression of calcium absorption delayed wound healing, immune suppression, and hyperglycemia. | ||||||||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Packagers | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Properties | |||||||||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||||||||
| Experimental Properties | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| General Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| AHFS Codes | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| PDB Entries | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| FDA label | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| MSDS | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| Food Interactions | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Targets |
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Pharmacological action: yes
Actions: agonist Receptor for glucocorticoids (GC). Has a dual mode of action:as a transcription factor that binds to glucocorticoid response elements (GRE) and as a modulator of other transcription factors. Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth Organism class: humanUniProt ID: P04150 ![]() Gene: NR3C1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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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 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:
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| Carriers |
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1. Corticosteroid-binding globulin Actions: binderMajor transport protein for glucocorticoids and progestins in the blood of almost all vertebrate species UniProt ID: P08185![]() Gene: SERPINA6 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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