Intravenous doses of a synthetic component of good cholesterol reduced artery disease in just six weeks in a small study with startlingly big implications for treating the nation's No. 1 killer. (MSNBC)

I heard about this story on NPR.  The discovery and news is pretty cool, but what struck me most was when the interviewer asked the 'expert' if injections of regular HDL would have the same effect.  The expert's answer was something like "We'll probably never know since the drug companies can't patent normal HDL, and they fund the trials."