From a story on statins in the New York Times discussing the fact that statins increase risk of diabetes:
"Exactly how statins may increase diabetes risk isn’t entirely clear, though animal studies suggest that statins can increase muscle resistance to insulin, resulting in higher levels of circulating blood sugar. Dr. Kausik notes that the patients in the studies were diagnosed with diabetes because of elevated blood sugar levels, but that the long-term consequences of higher blood sugar levels triggered by statin use aren’t known.
" 'Diabetes is defined by blood glucose levels, but none of us are absolutely certain if this is going to carry the same risk as if you traditionally developed diabetes,' Dr. Kausik said.
["Dr. Kausik" is Dr. Kausik Ray, professor of cardiovascular disease prevention at St. George’s University of London and senior author on the paper. Apparently the reporter couldn't even get the name right, so perhaps she also misquoted the doctor. Or maybe she refers to doctors as "Dr. Bob" or "Dr. Mary."]
A high blood glucose level is a high blood glucose level. It doesn't matter what caused it. The good doctor's statement makes as much sense as saying that high blood pressure caused by some drug has different consequences from high blood pressure caused by stress or genetics. It's the high blood pressure, or the high blood glucose, that causes the complications.
One could argue that high blood glucose levels caused by insulin resistance were riskier than high blood glucose levels caused by autoimmunity if you think it's the insulin resistance rather than the high blood glucose levels that are harmful in type 2.
But Dr. Ray said statins increase insulin resistance, so the diabetes they cause is like type 2.
With stupid reasoning like this, it's a miracle any of us survive our doctors' treatments! Remind me to avoid St. George's University of London.
I found it interesting that Dr. Steven Nissen, the one who pressed to have Avandia removed from the market because it increases heart disease risks, is arguing that people shouldn't stop taking statins even though they increase diabetes risks, and diabetes increases heart disease risks.