You may not have done this intentionally, but cherry picking studies that you think support your position, particularly rat studies and/or ones that are inconclusive/assumptive, is not proof of anything. I've debated this topic numerous times in the past, so I am not going to re-state things I have already posted 20 times before. By your own admission you weren't even aware of all the studies showing that GW prevented cancer in human cell lines in numerous organ systems...until I told you a few days ago.
So, instead of looking for studies that you think support your original belief, maybe do some more unbiased research...and you will find that the general consensus, among the majority of those who have studied the drug, is that GW is more likely to be anti-cancerous in humans rather than cancerous, generally speaking. There is much we still don't know about this drug/class of drugs and there is certainly some concerning research out there, but all the positive research, especially when assessed in combination with the fact that we have not seen one single documented case of GW causing cancer in a human, leads me to believe that this drug is much safer than originally believed...and it may not even be dangerous at all. We don't know. However, we do know that the drug has been used by 10,000's of people over a decade without any known issues. We also know that it provides a plethora of health benefits ranging from improved blood sugar regulation to better cardiovascular health. These benefits are real and documented among a significant percentage of users.
I was actually aware of the in vitro studies in human cell lines. When I said that "this is news to me" I was referring to your claim that "the very substance the researchers used to test for the presence of cancer (in rat studies) actually shows up as cancer during testing", which I still believe is incorrect.
Also, as I have pointed out above there are in vitro studies on human cell lines which show either a pro- or anti cancer effect of GW. It's true that I cherry picked those studies, but the idea behind that was as counterevidence to the studies john posted before. So if anything people in this forum cherry picked the evidence and I simply presented the other side of the coin.
Now, with regard to the in vivo studies, which are much more useful, even if they are in rats and mice respectively (and since all in vivo studies point in the same direction, I'm not cherry picking here either): Both the original study as well as the recent one from 2017 i posted (which I don't know if you were aware of) clearly show the toxicity and carcinogenicity of GW. Furthermore, the 2017 study shows that other PPARdelta agonists do not have the same negative effects, therby indicating that some off target activity of GW is responsible for the negative effects. I would really have liked to hear some constructive criticism of the study from you. I get that you discussed this topic ad nauseum, but if new evidence is presented that should spark your interest. Especially someone who owns a research chem company should be interested in finding a safer compound than GW that has all its (admittedly) great effects.
The reason I chimed in here in the first place is that the consensus on this board seems to be that "GW is 100% harmless, all evidence to the contray is false". That's not true and it deprives people of important information they need to make an informed decision on whether they want take the risk. As you say "
We don't know"if GW is safe. I may well be, but there is too much evidence to the contrary to make that claim. At the very least, the evidence should compel people to keep their dosage low.
BTW, I don't buy the story that GSK purposely fabricated evidence against their own drug to protect their product portfolio. They were not and are not the only ones researching this class of drug, and if the drug were really that revolutionary to make most of their other products obsolete (it's not), then there's no way some other (smaller) firm would come out with it. And low and behold the 2017 study I posted from some small biotech firms confirms the safety issues of GW and argues to have developed a better alternative. Why didn't evil big pharma suppress these results if in fact it jeopardizes half their profits?