One of the ingredients in Femarelle is
flaxseed.
Femarelle is a dietary supplement that is a mixture of DT56a (a tofu extract) and flaxseed powder,[1] that may act as a selective estrogen receptor modulator (SERM).[2][3] In 2008 an application was submitted to the European Food Safety Authority to market Femarelle with a health claim, namely that it can reduce the risk for osteoporosis and other bone disorders;[1] the EFSA found that "the food/constituent for which the claim is made, i.e. Femarelle®, has not been sufficiently characterised" and that " a cause and effect relationship has not been established between the consumption of Femarelle® and increased BMD, increased bone formation, or decreased risk of osteoporosis or other bone disorders in post-menopausal women."[1]
Femarelle has been tested in small clinical trials. One studied its effect on the tissue lining the vagina, another on relief of hot flashes in menopause, and another on the risk of causing blood clots, which is a risk of hormone replacement therapy. While results were promising, the studies were too small and too short in duration from which to draw conclusions.[2]
References
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Estrogens |
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Antiestrogens |
SERMs / antagonists |
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Aromatase inhibitors |
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Antigonadotropins |
- Androgens/anabolic steroids (e.g., testosterone, nandrolone, oxandrolone)
- GnRH agonists (e.g., leuprorelin)
- GnRH antagonists (e.g., cetrorelix)
- Progestogens (incl. allylestrenol, chlormadinone acetate, cyproterone acetate, delmadinone acetate, dydrogesterone, medroxyprogesterone acetate, megestrol acetate, nomegestrol acetate, norethisterone acetate, progesterone, spironolactone)
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Description |
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Disease |
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Treatment |
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Receptor
(ligands) |
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Agonists
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- (R)-DPN
- (S)-DPN
- (R,R)-THC
- (S,S)-THC
- 2,8-DHHHC
- 3α-Androstanediol
- 3β-Androstanediol
- 3α-Hydroxytibolone
- 3β-Hydroxytibolone
- 7-Oxo-DHEA
- 7α-Hydroxy-DHEA
- 7β-Hydroxyepiandrosterone
- 8β-VE2
- 16α-Hydroxy-DHEA
- 16α-Hydroxyestrone
- 16α-IE2
- 16α-LE2 (Cpd1471)
- Δ4-Androstenedione
- Δ5-Androstenediol
- 17α-Estradiol (alfatradiol)
- 17β-Estradiol (estradiol)
- Alestramustine
- Almestrone
- Anabolic steroids (prodrugs; e.g., testosterone, metandienone (methandrostenolone), others)
- Anethole
- Anol
- Atrimustine
- Benzestrol
- Bifluranol
- Bisdehydrodoisynolic acid
- Cadmium
- Carbestrol
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- Cloxestradiol
- Conjugated equine estrogens (e.g., sodium equilin sulfate, sodium equilenin sulfate)
- Coumestans (e.g., coumestrol, psoralidin)
- DHEA
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- Deoxymiroestrol
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- Doisynolic acid
- DY-131 (GSK-9089)
- Endosulfan
- Epiestriol
- Epimestrol
- ERB-196 (WAY-202196)
- Esterified estrogens (e.g., estrone sulfate, equilin sulfate, equilenin sulfate)
- Estetrol
- Estradiol benzoate
- Estradiol butyrylacetate
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- Estradiol hexahydrobenzoate
- Estradiol monopropionate
- Estradiol palmitate
- Estradiol pivalate
- Estradiol propoxyphenylpropionate
- Estradiol stearate
- Estradiol succinate
- Estradiol undecylate
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- Estramustine
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- Estrapronicate
- Estrazinol
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- Estrobin (DBE)
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- Estrone cyanate
- Estrone sulfate
- Estrone tetraacetylglucoside
- Estropipate
- Estropronicate
- Etamestrol (eptamestrol)
- Ethinyl estradiol
- Ethinyl estradiol 3-isopropylsulfonate
- Etynodiol diacetate
- Fenarimol
- Fenestrel
- FERb 033
- Flavonoids (incl. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin)
- Fosfestrol
- Furostilbestrol
- GSK-4716
- Hexestrol
- Hexestrol diacetate
- Hexestrol dicaprylate
- Hexestrol diphosphate
- Hexestrol dipropionate
- Hydroxyestrone diacetate
- Lavender oil
- Lignans (e.g., enterodiol, enterolactone)
- Mestranol
- Metalloestrogens (e.g., cadmium)
- Methallenestril
- Methestrol
- Methestrol dipropionate
- Methiocarb
- Methylestradiol
- Miroestrol
- Moxestrol
- Nilestriol
- Noretynodrel
- Orestrate
- Paroxypropione
- Phytosterols (e.g., β-sitosterol, campesterol, stigmasterol)
- Polyestradiol phosphate
- Prinaberel (ERB-041, WAY-202041)
- Propylpyrazoletriol
- Promestriene
- Resorcylic acid lactones (e.g., zearalanone, zearalenol, zearalenone, zeranal (zearalanol))
- Quadrosilan
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- SKF-82,958
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- Synthetic xenoestrogens (e.g., alkylphenols, bisphenols (e.g., BPA, BPF, BPS), DDT, parabens, PBBs, PHBA, phthalates, PCBs)
- WAY-166818
- WAY-200070
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Antagonists
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Enzyme |
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Others |
Precursors
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Indirect
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- Antigonadotropins (e.g., androgens, estrogens, progestogens, prolactin)
- Calcitriol (vitamin D)
- GnRH agonists (e,g, GnRH, leuprorelin)
- GnRH antagonists (e.g., cetrorelix)
- Gonadotropins (e.g., FSH, hCG, LH)
- Kisspeptin
- Plasma proteins (ABP, albumin, SHBG)
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- ↑ 1.0 1.1 1.2 Poluzzi E, et al Phytoestrogens in postmenopause: the state of the art from a chemical, pharmacological and regulatory perspective. Curr Med Chem. 2014;21(4):417-36. PMID 24164197 PMC 3963458
- ↑ 2.0 2.1 Bedell S, et al. The pros and cons of plant estrogens for menopause. J Steroid Biochem Mol Biol. 2014 Jan;139:225-36. Review. PMID 23270754
- ↑ EFSA Femarelle® and bone mineral density Scientific substantiation of a health claim related to “Femarelle®” and “induces bone formation and increases bone mineral density reducing the risk for osteoporosis and other bone disorders” pursuant to Article 14 of the Regulation (EC) No 1924/20061 Scientific Opinion of the Panel on Dietetic Products, Nutrition and Allergies. The EFSA Journal (2008) 785, 1-10]