FROM OUR EXPERTS
The drug metformin is not recommended for people with
kidney disease. For this reason, some people think that metformin causes kidney disease. But new evidence
suggests that metformin might actually protect the kidneys.
For many people with type 2 diabetes , metformin is a very
effective drug. In everyone, the liver is a sort of "mother" organ. When blood
glucose (BG) levels go down, the liver releases some glucose into the blood to
make sure all the other organs get enough glucose energy to work properly.
When you eat and your BG levels start going up, the liver
is supposed to stop pushing all this glucose out into the bloodstream.
But for some reason, in people with type 2 diabetes, like
an oversolitous mother, the liver doesn't stop feeding the bloodstream after
meals. "Eat eat!" I can hear it say to a bloodstream already stuffed with
glucose. And this continued release of glucose into the bloodstream after
meals is one reason people with type 2 go high after me...
Metformin controls the insulin resistance of people who have type 2 diabetes so well that, if possible, all of us should be taking it. That's what Roderic Crist, M.D., told me at the annual convention of the American Society of Bariatric Physicians in Denver this weekend. Dr. Crist specializes in family medicine in Cape Girardeau, Missouri. “Not everybody can take every drug,” he added, when I followed up our conversation by calling him at his office after he returned home. “But most of the time people can take metformin if they take it carefully.” Doctors increasingly prescribe it not only for type 2 diabetes but also for insulin resistance, polycystic ovary syndrome, and non-alcoholic fatty liver disease. Roughly one-third of Dr. Crist’s patients have diabetes. Well over half, if not two-thirds of the people he sees are insulin resistant. “I treat insulin resistance with that drug even if they aren’t fully diabetic.” he says. “If th...
When I was diagnosed in 1996 and my doctor suggested metformin, no one knew how it worked. I told him I was hesitant to take a drug when no one knew what it did. He agreed about the lack of knowledge but then said, “However, we do know what high blood glucose (BG) does, and it’s not a pretty picture.”
So I reluctantly decided to give the drug a try. And metformin, plus a drastic change in diet, did bring my BG levels down to close to normal ranges.
Not long after that, they discovered that metformin keeps the liver from dumping a lot of glucose into the bloodstream. And after that they decided it did so by increasing levels of a molecule called AMPK.
AMPK is known as the “energy sensor” of the cell. When your cellular energy levels are low, meaning you’re not producing a lot of ATP (known as the “energy currency” of the cell), you produce more AMPK. This hypothesis continued to be accepted as true.
But now, ne...
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