MyoGrow, as cheesey as the name sounds, is the only sound theoretical approach I've seen so far. They, as mentioned above, are implementing siRNA moeities that will bind to the mRNA encoding myostatin and effectively preventing translation of the myostatin mRNA into the myostatin protein. Gene "silencing" via siRNA is a powerful and rapidly evolving tool in molecular biology that has tons of potential. The beauty of it is that the siRNAs are injected, preferably IM, but it was mentioned sub Q above, and some will be taken up into cells where it will bind/pair with what it is designed to be complementary to, in this case myostatin mRNA...thus forming double stranded RNA. Since the only time the human body should be encountering dsRNA is when it is of a viral source, the body's quickly recognizes and degrades the dsRNA (consisting of the myostatin mRNA and the siRNA). This effectively prevents the myostatin protein from being synthesized. However, this system is beautiful because as the siRNA which has been injected pairs with myostatin mRNA and degrades and eventually runs out (gets titrated), the myostatin gene, GDF-8 (I believe) continues transcribing myostatin mRNA. Therefore, once there is no longer any siRNAin the body, pretherapy physiology ensues....no permanent disruptions in gene expression.
Some problems I have with their MyoGrow are that the effects will be localized. RNA is incredibly prone to degradation. It is very sensitive to fluctuations in temp and pH as well as salt conditions. In addition, RNAses are present everywhere. Injecting subQ only slows in the siRNA getting to where it needs to go...the muscle cells. The further away from its intended target you introduce it, the greater the chance of degradation. Also, the makers state that 12 nanomoles are sufficient for a 60 day in vivo human trial (hypothetically, of course). This was directly from their response to one of my emails directed to their tech people. They did not comment on the suggested frequency of injections. However, I doubt that this amt will be sufficient to have significant effects....but I may test that theory anyway

They offered no data to support that the siRNAs that they have developed will effectively "silence" myostatin but rather directed me towards general siRNA studies, with which I'm already very familiar.
I'm hesitant to say "MyoGrow" will or will not work, BUT it, in no way, should be compared to these BS myostatin blocking pills or other compounds...there simply is no validity to even a slight possibility that these products will selectively inhibit myostatin in any way.
I do take my hat off to the "MyoGrow" guys for using the most cutting edge and appropriate approaches to creating an effective inhibitor, but whether or not the specific siRNAs they have work is yet to be shown...to me anyway.
On a side not, a permanent myostatin inhibitor is relatively easy to desine, being that they have isolated myostatin and know it's structure. It's finding an effective way to reverse the process that will cause the delay.
Here's a link to the MyoGrow stuff. I am anxious to give it a try, but I'd want to run it alone or with something I already know how I react to, so that I can accurately guage its effect. I'd also like a little more scientific responses from the makers when responding to my emails. I will try it..withing 6 months or so.
hitmeoff said:
Ok guys, I got a Myostatin inhbitor that ive been using for about a week and a half now.
Its not an oral like MyoBlast or anything crappy like that. Its an injectable, shot everyday Sub-Q.
The preparation for this stuff is kinda complicated, you gotta basically reconstitue 3 different kinds of siRNAs then mix them together and distribute them into smaller vials that hold approx 2ml of solution. You use 1ml a day.
It seems to be doing something. Ever since I got a cold about a month ago I was loosing strength, even when I was a few weeks removed from the cold I was still suffering strength loss (I had also just come off a HEAVY HEAVY cycle about 2 months ago). But last week was a VERY good week for me in the gym. I reagained all the strength I lost when I got sick, and gained some more on top of that. My weight has gone up about 2lbs as well.
A friend of mine used this before and apparently gained 11lbs over the course of 2 months. So this doesnt seem like a magic bullet or anything like that, but the it does seem to give some results (it did for my buddy, and it SEEMS to be doing it for me).