@ECAsson - one more thing. There's a doctor named Stanislaw Burzynski in Texas who has been doing research using antineoplastons (peptides and amino acid derivatives) for cancer treatment. He's faced enormous opposition from and legal battles with the U.S. FDA (Food and Drug Administration) and the Texas Board of Medical Examiners. There's a documentary about him just called "Burzynski" about this. Here's a link with more info:
http://articles.mercola.com/sites/articles/archive/2011/06/11/burzynski-the-movie.aspx
And his clinic is here:
http://www.burzynskiclinic.com/scientific-publications.html
From what I've read and seeing the documentary, his treatments do show promise, but he has been handicapped by these legal battles, enormous legal fees and also I believe is restricted in clinical trials to only use patients who have first gone through traditional cancer treatments (chemo, radiation, etc.) which treatments of course destroy the immune system. So he is working with patients whose immune systems are seriously compromised to begin with which of course will affect his results. I think he might have more promising results if he was not so restricted.
What I'm leading up to is that he is basically using peptides in much of his research and treatment. I find this whole area very interesting and think it's worth exploring further, and there may very well be merit in the peptide bioregulators you refer to above.
Actually if you end of up trying any of them, please let us know how it goes
