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Probiotic treats diabetes in rats, could lead to human remedy using the microbiome


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From Ray Kurzweil's site...

Imagine a pill that helps people control diabetes with the body’s own insulin to lower blood glucose levels.

Cornell researchers have achieved this feat in rats by engineering humanlactobacilli, a common gut bacteria, to secrete a protein that modifies intestinal cells to produce insulin..

A 2003 study led by Atsushi Suzuki of the University of Tsukuba, Japan, first demonstrated that when exposed to a protein called Glucagon-like peptide 1 (GLP-1), intestinal epithelial cells (which cover the guts) are converted into insulin-producing cells.

But until now, it has not been possible to administer GLP-1 into a live animal without injecting it — a method of administration that is not very effective.

Bypassing injections with a probiotic

The researchers came up a clever way to secrete GLP-1 in the gut without injecting it:

1. They engineered a strain of lactobacillus, a human probiotic(“good bacteria”), to secrete GLP-1.

2. They administered the modified probiotic bacteria orally to diabetic rats for 90 days.

3. Upper intestinal epithelial cells in diabetic rats were converted into cells that acted very much like pancreatic cells (cells that monitor blood glucose levels and secrete insulin as needed to balance glucose levels in healthy individuals).

4. Rats with high blood glucose (called hyperglycemia, a hallmark of diabetes) that received the engineered probiotic ended up with up to 30 percent lower blood glucose levels.

A pill instead of an injection

The rat study was a proof of principle; future work will test higher doses to see if a complete treatment can be achieved, said John March, professor of biological and environmental engineering in the College of Agriculture and Life Sciences and the paper’s senior author.

The technology is being licensed by the company BioPancreate, which is working to get the therapy into production for human use. Human patients would likely take a pill each morning to help control their diabetes, March said.

The study, published Jan. 27 in the journal Diabetes, is funded by the National Institutes of Health and the Hartwell Foundation.

So this probiotic made the microbiome BEHAVE LIKE A PANCREAS to regulate glucose. Wow!

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