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Chemical compound
Pharmaceutical compound
Zeranol Trade names Frideron, Ralabol, Ralgro, Ralone, Zerano Other names Zearanol; α-Zearalanol; Zearalanol; MK-188; P-1496 Routes of administration By mouth Drug class Nonsteroidal estrogen
(3S ,7R )-7,14,16-trihydroxy-3-methyl-3,4,5,6,7,8,9,10,11,12-decahydro-1H -2-benzoxacyclotetradecin-1-one
CAS Number PubChem CID ChemSpider UNII ChEMBL CompTox Dashboard (EPA ) ECHA InfoCard 100.043.411 Formula C 18 H 26 O 5 Molar mass 322.401 g·mol−1 3D model (JSmol )
C[C@H]1CCC[C@H](O)CCCCCc2cc(O)cc(O)c2C(=O)O1
InChI=1S/C18H26O5/c1-12-6-5-9-14(19)8-4-2-3-7-13-10-15(20)11-16(21)17(13)18(22)23-12/h10-12,14,19-21H,2-9H2,1H3/t12-,14+/m0/s1
N Key:DWTTZBARDOXEAM-GXTWGEPZSA-N
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Zeranol (INN Tooltip International Nonproprietary Name , USAN Tooltip United States Adopted Name , BAN Tooltip British Approved Name ) (brand names Frideron , Ralabol , Ralgro , Ralone , Zerano ; developmental code names MK-188 , P-1496 ), or zearanol , also known as α-zearalanol or simply zearalanol , is a synthetic nonsteroidal estrogen of the resorcylic acid lactone group related to mycoestrogens found in fungi in the Fusarium genus and is used mainly as an anabolic agent in veterinary medicine .[ 1] [ 2] [ 3]
Zeranol is approved for use as a growth promoter in livestock, including beef cattle, under the brand name Ralgro (by Merck Animal Health ) in the United States .[ 4] In Canada , it is approved for use in beef cattle only.[ 5] Its application is not approved for use in the European Union . However, it is marketed under the brand name Ralone in Spain .[ 2]
Although zeranol may increase cancer cell proliferation in already existing breast cancer ,[ 6] dietary exposure from the use of zeranol-containing implants in cattle is insignificant.[ 7] Zeranol may be found as a contaminant in fungus-infected crops. It is 3 to 4 times more potent as an estrogen than the related compound zearalenone .[ 8] It is a metabolite of zearalenone.[ 9]
^ Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies . Springer. pp. 350–. ISBN 978-1-4757-2085-3 .
^ a b Index Nominum 2000: International Drug Directory . Taylor & Francis. January 2000. pp. 1105–. ISBN 978-3-88763-075-1 .
^ Morton IK, Hall JM (6 December 2012). Concise Dictionary of Pharmacological Agents: Properties and Synonyms . Springer Science & Business Media. pp. 295–. ISBN 978-94-011-4439-1 .
^ Nichols W, Hutcheson J, Streeter M, Corrigan M, Nuttelman B. "Implant Strategies for Finishing Cattle using Revalor® (trenbolone acetate and estradiol), Finaplix® (trenbolone) and/or Ralgro® (zeranol)" (PDF) .
^ Health Canada, Questions and Answers - Hormonal Growth Promoters
^ Xu P, Ye W, Jen R, Lin SH, Kuo CT, Lin YC (November 2009). "Mitogenic activity of zeranol in human breast cancer cells is enhanced by leptin and suppressed by gossypol". Anticancer Research . 29 (11): 4621–4628. PMID 20032412 .
^ Lindsay DG (August 1985). "Zeranol--a 'nature-identical' oestrogen?". Food and Chemical Toxicology . 23 (8): 767–774. doi :10.1016/0278-6915(85)90273-x . PMID 2931335 .
^ Mirocha CJ, Schauerhamer B, Christensen CM, Niku-Paavola ML, Nummi M (October 1979). "Incidence of zearalenol (Fusarium mycotoxin) in animal feed" . Applied and Environmental Microbiology . 38 (4): 749–750. Bibcode :1979ApEnM..38..749M . doi :10.1128/AEM.38.4.749-750.1979 . PMC 243572 . PMID 161492 .
^ Miles CO, Erasmuson AF, Wilkins AL, Towers NR, Smith BL, Garthwaite I, et al. (October 1996). "Ovine metabolism of zearalenone to α-zearalanol (zeranol)". Journal of Agricultural and Food Chemistry . 44 (10): 3244–3250. Bibcode :1996JAFC...44.3244M . doi :10.1021/jf9601325 .
ER Tooltip Estrogen receptor
Agonists
Steroidal: 2-Hydroxyestradiol
2-Hydroxyestrone
3-Methyl-19-methyleneandrosta-3,5-dien-17β-ol
3α-Androstanediol
3α,5α-Dihydrolevonorgestrel
3β,5α-Dihydrolevonorgestrel
3α-Hydroxytibolone
3β-Hydroxytibolone
3β-Androstanediol
4-Androstenediol
4-Androstenedione
4-Fluoroestradiol
4-Hydroxyestradiol
4-Hydroxyestrone
4-Methoxyestradiol
4-Methoxyestrone
5-Androstenediol
7-Oxo-DHEA
7α-Hydroxy-DHEA
7α-Methylestradiol
7β-Hydroxyepiandrosterone
8,9-Dehydroestradiol
8,9-Dehydroestrone
8β-VE2
10β,17β-Dihydroxyestra-1,4-dien-3-one (DHED)
11β-Chloromethylestradiol
11β-Methoxyestradiol
15α-Hydroxyestradiol
16-Ketoestradiol
16-Ketoestrone
16α-Fluoroestradiol
16α-Hydroxy-DHEA
16α-Hydroxyestrone
16α-Iodoestradiol
16α-LE2
16β-Hydroxyestrone
16β,17α-Epiestriol (16β-hydroxy-17α-estradiol)
17α-Estradiol (alfatradiol )
17α-Dihydroequilenin
17α-Dihydroequilin
17α-Epiestriol (16α-hydroxy-17α-estradiol)
17α-Ethynyl-3α-androstanediol
17α-Ethynyl-3β-androstanediol
17β-Dihydroequilenin
17β-Dihydroequilin
17β-Methyl-17α-dihydroequilenin
Abiraterone
Abiraterone acetate
Alestramustine
Almestrone
Anabolic steroids (e.g., testosterone and esters , methyltestosterone , metandienone (methandrostenolone) , nandrolone and esters , many others; via estrogenic metabolites)
Atrimustine
Bolandiol
Bolandiol dipropionate
Butolame
Clomestrone
Cloxestradiol
Conjugated estriol
Conjugated estrogens
Cyclodiol
Cyclotriol
DHEA
DHEA-S
ent -Estradiol
Epiestriol (16β-epiestriol, 16β-hydroxy-17β-estradiol)
Epimestrol
Equilenin
Equilin
ERA-63 (ORG-37663)
Esterified estrogens
Estetrol
Estradiol
Estramustine
Estramustine phosphate
Estrapronicate
Estrazinol
Estriol
Estrofurate
Estrogenic substances
Estromustine
Estrone
Etamestrol (eptamestrol)
Ethinylandrostenediol
Ethinylestradiol
Ethinylestriol
Ethylestradiol
Etynodiol
Etynodiol diacetate
Hexolame
Hippulin
Hydroxyestrone diacetate
Lynestrenol
Lynestrenol phenylpropionate
Mestranol
Methylestradiol
Moxestrol
Mytatrienediol
Nilestriol
Norethisterone
Noretynodrel
Orestrate
Pentolame
Prodiame
Prolame
Promestriene
RU-16117
Quinestradol
Quinestrol
Tibolone
Xenoestrogens: Anise -related (e.g., anethole , anol , dianethole , dianol , photoanethole )
Chalconoids (e.g., isoliquiritigenin , phloretin , phlorizin (phloridzin) , wedelolactone )
Coumestans (e.g., coumestrol , psoralidin )
Flavonoids (incl. 7,8-DHF , 8-prenylnaringenin , apigenin , baicalein , baicalin , biochanin A , calycosin , catechin , daidzein , daidzin , ECG , EGCG , epicatechin , equol , formononetin , glabrene , glabridin , genistein , genistin , glycitein , kaempferol , liquiritigenin , mirificin , myricetin , naringenin , penduletin , pinocembrin , prunetin , puerarin , quercetin , tectoridin , tectorigenin )
Lavender oil
Lignans (e.g., enterodiol , enterolactone , nyasol (cis -hinokiresinol) )
Metalloestrogens (e.g., cadmium )
Pesticides (e.g., alternariol , dieldrin , endosulfan , fenarimol , HPTE , methiocarb , methoxychlor , triclocarban , triclosan )
Phytosteroids (e.g., digitoxin (digitalis ), diosgenin , guggulsterone )
Phytosterols (e.g., β-sitosterol , campesterol , stigmasterol )
Resorcylic acid lactones (e.g., zearalanone , α-zearalenol , β-zearalenol , zearalenone , zeranol (α-zearalanol) , taleranol (teranol, β-zearalanol) )
Steroid -like (e.g., deoxymiroestrol , miroestrol )
Stilbenoids (e.g., resveratrol , rhaponticin )
Synthetic xenoestrogens (e.g., alkylphenols , bisphenols (e.g., BPA , BPF , BPS ), DDT , parabens , PBBs , PHBA , phthalates , PCBs )
Others (e.g., agnuside , rotundifuran )
Mixed (SERMs Tooltip Selective estrogen receptor modulators ) Antagonists
Coregulator-binding modulators: ERX-11
GPER Tooltip G protein-coupled estrogen receptor
Agonists Antagonists Unknown
CAR Tooltip Constitutive androstane receptor PXR Tooltip Pregnane X receptor