Popieram Binia. Nie ma czegos takeigo jak 'wszystko", "zawsze", "nigdy" tym bardziej w nauce. Ktoś, kto tak myśli, bardzo szybko może być nieprzyjamnie zaskoczony.
tak na szybko wyciągnięte z "wielkiego worka", badania odnośnie niktórych składników aktywnych (tribulusa nie dawałem, bo zbrakło by miejsca) T-boosterów... i tego jak to nie jest udowodnione że działają...
ASTAKSANTYNA:
1) J Int Soc Sports Nutr. 2008 Aug 12;5:12. An open label, dose response study to determine the effect of a dietary supplement on dihydrotestosterone, testosterone and estradiol levels in healthy males. Angwafor F 3rd, Anderson ML.
…CONCLUSION: Both dose groups showed significant (p = 0.05) increases in T and decreases in DHT within three days of treatment…
SAW PALMETTO:
1) Biol Pharm Bull. 2009 Apr;32(4):646-50. Pharmacologically relevant receptor binding characteristics and 5alpha-reductase inhibitory activity of free Fatty acids contained in saw palmetto extract. Abe M, Ito Y, Oyunzul L, Oki-Fujino T, Yamada S.
…In conclusion, lauric acid, oleic acid, myristic acid, and linoleic acid, major constituents of SPE, exerted binding activities of alpha(1)-adrenergic, muscarinic and 1,4-DHP receptors and inhibited 5alpha-reductase activity….
2) Prostate. 2007 May 1;67(6):661-73. Effects of dietary saw palmetto on the prostate of transgenic adenocarcinoma of the mouse prostate model (TRAMP). Wadsworth TL, Worstell TR, Greenberg NM, Roselli CE.
…RESULTS: Treatment with 300 mg/kg/day SPE from 4 to 24 weeks of age significantly reduced the concentration of 5alpha-dihydrotestosterone (DHT) in the prostate and resulted in a significant increase in apoptosis and significant decrease in pathological tumor grade and frank tumor incidence. CONCLUSIONS: Dietary supplementation with SPE may be effective in controlling CaP tumorigenesis. SPE suppression of prostatic DHT levels lends support to the hypothesis that inhibition of the enzyme 5alpha-reductase is a mechanism of action of this substance….
PIPPER NIGRUM:
1) Biol Pharm Bull. 2007 Dec;30(12):2402-5. Testosterone 5alpha-reductase inhibitory active constituents of Piper nigrum leaf. Hirata N, Tokunaga M, Naruto S, Iinuma M, Matsuda H.
…piperine, a major alkaloid amide of P. nigrum fruit, showed potent inhibitory activity, thus a part of the inhibitory activity of P. nigrum fruit may depend on piperine. The 5alpha-reductase inhibitory activities of 1 and piperine were found for the first time…
INDOLE-3-CARBINOL
1) J Nutr Biochem. 2006 Oct;17(10):659-64. Epub 2005 Nov 28. Estrogen receptor alpha as a target for indole-3-carbinol. Wang TT, Milner MJ, Milner JA, Kim YS.
…ability to reduce ER-alpha expression through the binding of its metabolite, DIM, to the nuclear AhR…
2) J Biol Chem. 2003 Jun 6;278(23):21136-45. Epub 2003 Mar 27. Plant-derived 3,3'
iindolylmethane is a strong androgen antagonist in human prostate cancer cells.Le HT, Schaldach CM, Firestone GL, Bjeldanes LF.
…3,3'
iindolylmethane (DIM) is a major digestive product of indole-3-carbinol, a potential anticancer component of cruciferous vegetables….[…] … DIM is the first example of a pure androgen receptor antagonist from plants...
AROMATASE INHIBITORS: structural features and biochemical characterization.Hong Y, Chen S.
…natural anti-aromatase chemicals, such as flavones and coumarins, have been identified…
Oprócz tego jest wiele innych składników dziaających na podniesienie poziomu wolnego testosteronu we krwi.
Zachęcam do lektury Perfect Body.
A z drugiej strony czego spodziewać się po opiniach ludzi, którzy działanie tribulusa porównują do argininy ;)) Chyba w życiu nie brali ani jednego ani drugiego ;)
Zmieniony przez - El_Griton w dniu 2011-02-24 10:40:54
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