(17-09-2014, 07:06 AM)Lotus Wrote:(15-09-2014, 04:56 AM)Candace Wrote: Beta sitosterol does inhibit 5-AR, but the content in peony is too low for your reference to specify it, so the effective peony dose would be impractical, and perhaps dangerous if it caused an overdose of the major components.
Oh really, then prove it!
(09-09-2014, 03:26 PM)spanky Wrote: Thanks, Candace. How reliable are product claims that they are "standardized?"
FWIW, here is some research on reishi I assembled. the first link includes a detailed article.
Estrogenic effects and 5-alpha reductase inhibiting effects of reishi - Ganoderma lucidum
http://www.academia.edu/6924010/Ganoderma_lucidum_A_Potent_Pharmacological_Macrofungus
http://link.springer.com/article/10.1007%2Fs10086-008-0992-2
http://www.raysahelian.com/ganoderma.html
http://www.nuskin.com/global/library/pdf/products/reishi_studies.pdf
http://functionalfoodscenter.net/files/63502376.pdf
http://www.livestrong.com/article/526240-do-mushrooms-have-an-effect-on-testosterone-levels/
http://www.rawforestfoodsblog.com/is-reishi-ganoderma-lucidum-anti-androgenic/
(17-09-2014, 06:42 AM)Candace Wrote: You have not provided a legitimate answer, you're just blowing smoke in a desperate attempt to avoid having to admit that you were wrong about something.
(17-09-2014, 07:44 AM)Candace Wrote: I can imagine you as a pharma rep demanding that the FDA prove that your company's drug isn't safe and effective. I'll play along, though.
(17-09-2014, 07:44 AM)Candace Wrote: Since no concentration is given, we can assume that it's lower than the concentrations that are listed. Let's be generous and call it 0.03% beta sitosterol. Paeoniflorin is 3.3-9.4%. One 600 mg capsule of LEF's extract contains 252 mg paeoniflorin. Assuming that both chemicals are concentrated to the same degree in the extraction process, we would expect to see 0.8-2.3 mg of beta sitosterol in each capsule. The effective dose in the study I cited was 60 mg/day, so 26-75 capsules of peony per day would be required. Impractical!
(30-03-2012, 05:37 AM)xxd Wrote: (Peony extract blocks DHT through inhibiting the 5 alpha reductase enzyme as well as increasing aromatase) Personally speaking I have a bachelors degree in chemistry so I can understand the research that is *there* .(which obviously you don't )
(18-02-2012, 06:27 PM)xxd Wrote: I'm sure there *are* studies that go on about the relative potency of particular estrogens vs their natural counterparts but the problem with leaving it at that is that not all phytoestrogens are made equal.
Some of them are still called phytoestrogens and yet they block the activity of estrogen in the body by competitively inhibiting the natural stuff, more strongly bind the receptor sites and then having much weaker action at the receptor sites.
What you want are herbs that have estrogenic effects that *don't* inhibit existing estrogens much and *also* add to the existing effects.
The problem you are asking is "how good is x herb compared to the natural estrogens in the body for doing exactly the same thing" but none of the researchers are asking that question!
There's an even worse problem. Asking the question "how good is x herb compared to natural estrogen in the body for doing exactly the same thing" is really asking 20 questions instead of just one.
Which means in addition to only being able to find the research that is being done it's also far easier to search for references on e.g. pureraria mirifica 5 alpha reductase or pureraria mirifica aromatase or pureraria 17 beta hydroxysteroid dehydrogenase than it is to look for pureraria mirifica competitive inhibitor estradiol/estriol/estrone, pureraria mirifica agonist estradiol/estriol/estone, pureraria mirifica binding receptor estradiol/estriol/estrone, pueraria relative stength estradiol/estriol/estrone or the other myriad combinations of things the three main estrogens do in the body (there are actually at least one more important one <17-alpha hydroxyestriol> and several lesser ones so the problem compounds even worse).
So to recap are far too many combinations of how the phytoestrogens could work as estrogens and the research *isn't* looking at that. The researchers definitely aren't searching for a better way to feminize someone using herbs. Instead they are looking for their effect on e.g. downregulating breast cancer by means of blocking aromatase or downregulating 5 alpha reductase to block prostate cancer etc etc
So i've sifted through the research looking for something *we* are not looking for and tying the scientific results back to my understanding of the steroid/enzyme tree in order to cut through the bullshit of what should work and what shouldn't work.
Which is not to say there' no value in knowing the many questions you're really asking because what you really want to know is "will this herb feminize me or will it not" but unfortunately as in everything that's not really a single question and the answer is often "yes but..."
Personally speaking I have a bachelors degree in chemistry so I can understand the research that is *there*.
For example gamma linoleneic acid and beta sitosterol are allegedly feminizing according to those who haven't read the research papers and just say they are phytoestrogens. Well yes they are phytoestrogens but while they partially block DHT like estradiol would they also block aromatase strongly and bind to the estradiol site more strongly than estradiol but then have much weaker action than estradiol would.
On the other hand there are other phytoestrognes like PM that doesn't seem to competitively block existing estrogens and also shift's the balance of the overall hormone system of the body towards estrogen dominance which is *good* from our perspective.
Likewise there are chemicals like spironolactone which are *not* phytoestrogens at all but they do things like block DHT strongly, do not inhibit aromatase at all and also downregulate testosterone back to andreneniostine.
Interestingly enough I looked at that this morning after I discovered what PM does to 17B-HSD type 2.
It looks to me that PM's mode of action includes being a slightly weaker version of spiro.
And there are people who feminize by taking only spiro with *no* phytoestrogens.
Anyways I hope your head is not spinning from this. I really enjoy this kind of thing.
(25-02-2012, 06:14 AM)xxd Wrote:(25-02-2012, 04:57 AM)blomst Wrote: Welcome, and thanks for making this great chart and bringing this research. I think these important details are ignored too much. It seems like it's assumed that if something has 'estrogenic activity' that it is beneficial for NBE, but there's so much to take into consideration. How does a certain phytoestrogen compare to estradiol? How does it affect the body's production or function of testosterone, or estradiol, or DHT, or aromatase, or 5ar? What other compounds are in the herb that could have different effects on these hormones and enzymes?
If all of this information was available I think NBE would have much better success rates. I suspect that many NBE programs are counterproductive. The main reason I'm not on PM now is that I've been worried that it would cause my already high T to shoot through the roof. I am mainly concerned with getting that T to turn into E.
I could only find three herbs that specifically raise aromatase which is the enzyme that converts T to E without blocking the estradiol receptors competitively:
licorice (which is the best at doing it but is dangerous) - multiplies aromatase production by 4.5 times
white peony (which is about half as potent as licorice) - multiplies aromatase production by 2 times
genistein (soy extract) - increases aromatase production by 40%.
D-aspartic-acid increases aromatase by 2X and estradiol by 80% but also increases T & DHT by 2x. With d-aspartic-acid you'd also need a DHT blocker.
That said, I don't know if increasing aromatase by this much would be enough by itself. It looks to me like PM doesn't increase T at all, quite the opposite. In fact I think if you take PM combined with one of the herbs above you're basically on a low dose sex change regime almost equivalent to taking hormones.
(20-02-2012, 02:22 AM)xxd Wrote: Be *very* careful with licorice. Seriously. As nuts as you think it might sound you can DIE.
(16-09-2014, 05:59 AM)Candace Wrote: I did not ask for the IC50 of 5-alpha reductase, I asked for "And for each of them ... what is the IC50 for 5-AR?
(16-09-2014, 05:59 AM)Candace Wrote: what is the IC50 for 5-AR,
(17-09-2014, 06:43 AM)Lotus Wrote:(17-09-2014, 06:42 AM)Candace Wrote: (By the way, the term is "antagonists" or "inhibitors", not "chemical constituents".)constituent
a part of the whole; component.
(an essential part : component, element)
(17-09-2014, 06:57 AM)Lotus Wrote:(17-09-2014, 06:42 AM)Candace Wrote: Whaaaaat? This chart and this paper say otherwise. You also used to believe that DHT could not be aromatized. What changed your mind?
Ha!, you actually caught that, I do have a sense of humor though. DHT can't be converted to estrogen.
(17-09-2014, 07:32 AM)Lotus Wrote:(17-09-2014, 06:42 AM)Candace Wrote: You have not provided a legitimate answer, you're just blowing smoke in a desperate attempt to avoid having to admit that you were wrong about something.
Wrong about what?, I'll admit when I'm wrong, (which I have, and offered an apology to all, can you admit when you're wrong?).
Lotus Wrote:You never did address this:
(24-08-2014, 08:22 AM)Candace Wrote: I got a Marcy Recumbent Mag Cycle from Amazon and souped up the resistance by pulling off the housing and placing Neodymium Magnets (1/2 x 1/4 inch Disc N48) on to the existing magnet. (Wearing work gloves to avoid pinched skin!) I then adjusted the resistance to the lowest level that I wasn't spinning on and worked my way up over time. My thighs are now so huge that Vaseline will not prevent me from chafing while running - I need compression shorts for that. I think my butt got bigger too. Pics below, no feminization treatments ever used.
(29-08-2014, 08:16 AM)emma Wrote: I don't mean to sound rude but how do you go from light toned skin to very dark toned skin... Sorry I'm a moderator for another site and I feel suspicious.http://www.breastnexus.com/showthread.php?tid=21138&page=3
(17-09-2014, 07:58 AM)Lotus Wrote: More proof-(you blew this info off).
To evaluate the safety and efficacy of an extract of Ganoderma lucidum that shows the strongest 5alpha-reductase inhibitory activity among the extracts of 19 edible and medicinal mushrooms by a double-blind, placebo-controlled, randomized and dose-ranging study in men with lower urinary tract symptoms (LUTS).
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Ganoderma lucidum: A Potent Pharmacological Macrofungus
http://www.researchgate.net/profile/Prakash_Bisen/publication/40032434_Ganoderma_lucidum_a_potent_pharmacological
Page 722, anti-androgen activity, page 724 estrogenic activity
5α-reductase inhibition, androgen receptor binding activity, prostate cancer cell lines.
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Target proteins of ganoderic acid DM provides clues to various pharmacological mechanisms
While screening mushrooms, we discovered that ethanol extracts of G. lingzhi showed the strongest 5α-reductase inhibitory activity among 19 species of mushrooms. Furthermore, treatment with the fruit body of G. lingzhi itself, or its ethanol extracts, significantly inhibited testosterone induced growth of the ventral prostate in rats9, 10. Our group previously isolated a series of triterpenoids from G. lingzhi. These compounds suppressed the proliferation of androgen-dependent and androgen-independent prostate cancer cell lines11 and estrogen-dependent MCF-7 cells12, and inhibited osteoclastic differentiation13. Among these triterpenoids, we found that only ganoderic acid DM (1, Fig. 1) had multiple functions, such as 5α-reductase inhibition, androgen receptor binding activity, prostate cancer cell, and proliferation and osteoclast differentiation11, 12, 13, 14. Although 1 affects different signaling pathways in different cell lines and has multiple functions, we have identified its target proteins, which explain and clarify the universal mechanism of its medicinal efficacy.
http://www.nature.com/srep/2012/121130/srep00905/full/srep00905.html
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Ganoderma - a therapeutic fungal biofactory.
http://www.researchgate.net/profile/Russell_Paterson/publication/6882609_Ganoderma_-_a_therapeutic_fungal_biofactory/links/00b7d5225ef366b7c6000000?ev=pub_ext_doc_dl&origin=publication_detail&inViewer=true
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Ganoderma lucidum inhibits proliferation and induces apoptosis in human prostate cancer cells PC-3
http://www.reishiessence.com/images/int_journal_of_oncology.pdf
(10-07-2014, 05:04 AM)Lotus Wrote:(10-07-2014, 05:00 AM)Lotus Wrote:(10-07-2014, 12:43 AM)lovely11 Wrote: Hops raises prolactin and IGF-1 (lacking source). It's good during follicular.
Massage raises prolactin, and short intense exercise is supposed to raise IGF-1
Chasteberry is supposed to raise progesterone (lacking source), but lower excessive prolactin.
Here are estrogenic herbs... http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693613/table/tbl2680/?report=objectonly
Red reishi reduces DHT
White peony increases estrogen while lowering androgens.
Pueraria M. I heard on threads is both estrogenic and progestogenic.
Paeonia has been shown to positively influence low progesterone, reduce elevated androgens (testosterone) and acts to modulate estrogen and prolactin. In vitro, the active constituent paeoniflorin has been shown to affect the ovarian follicle by its action on the aromatase enzyme. Aromatase is important for follicle maturation, ovulation and corpus luteum function, steroid hormone synthesis and the regulation of the conversion of androgens to estrogens. The biofeedback in the pituitary and hypothalamus rely on aromatase to regulate prolactin and GnRH. The daily dose for Paeonia is 4.5 to 9 mL of a 1:2 dried plant extract.
http://www.townsendletter.com/Nov2004/phyto1104.htm
5α-Reductase inhibitory activity-guided fractionation of the EtOH extract of the fruiting body of Ganoderma lucidum (LEYSS.:FR.) KARST. (Ganodermataceae), which is called Reishi, or Mannentake in Japan and Lingzhi in China, led to the isolation of two active compounds which were ganoderic acid DM and 5α-lanosta-7,9(11),24-triene-15α,26-dihydroxy-3-one with an IC50 of 10.6 μM and 41.9 μM respectively. A carboxyl group of side chain of ganoderic acid DM is essential to elicit the inhibitory activity because of much less activity of its methyl ester.
http://www.ncbi.nlm.nih.gov/pubmed/16462054