TAG | bacteria
Super Bugs and Genetically Modified Food
10/3/11 0 Comments | Posted by renewlifesupport in Uncategorized
There’s a new superbug in town, a superbug of a different kind. And Monsanto, the biotechnology giant, is the company behind it. It seems that one of Monsanto’s biggest money-makers—Bt corn, is creating superbugs. The majority of non-organic corn planted in the U.S. is genetically modified to produce a toxic compound against western corn rootworms—a major corn pest. This corn is well-known as Bt corn, because it contains a gene from the soil microorganisms Bacillus thuringiensis (Bt), which produces an insecticide against the corn rootworm.
Genetically modified Bt corn worked so well against the corn rootworm that some farmers began planting it every year, instead of the usual rotation of growing corn one year and soybeans the next—a method that helps reduce pest populations. If there is one thing that farmers should know, it’s that planting the same thing every year is a recipe for disaster (even if it doesn’t seem that way at first).
It turns out the corn rootworms, much like the superbug bacteria infecting humans, are developing a resistance to the Bt toxin that usually destroys the pest. A few farms in Iowa are reporting that the Bt corn no longer kills the corn rootworm, meaning the bugs—now superbugs—have developed resistance to the Bt toxin. First superbugs in our guts, now superbugs on corn, soon superbugs everywhere.
It’s estimated that about one-third of all the corn grown in the U.S. is Monsanto’s Bt corn. Try to buy products using organic corn, or at least non-GM corn, to avoid being part of the human experiment that is the consumption of GM foods in this country. We just don’t know if they’re safe yet, and many studies suggest they’re not.
Diet and the Gut
09/21/11 0 Comments | Posted by renewlifesupport in General Health, Probiotic Supplements
The human gut is home to thousands of different bacterial species, totaling 100 trillion bacterial cells—that’s about four pounds of bacteria, or the weight of a brick. The composition of this bacterial population (also known as the gut microbiota), is currently being studied.
A new study by researchers from the University of Pennsylvania, published in Science, takes the findings further. This new study found two major gut types—Bacteroides and Prevotella—based on gut bacterial population groups in 98 healthy volunteers who were asked to fill out questionnaires that assessed dietary habits. Stool samples were collected to determine their gut microbiota composition.
The researchers found a link between dietary habits and gut types. People who ate a diet high in meat and saturated fat were higher in Bacteroides bacteria, and people who had a diet high in carbohydrates had more Prevotella bacteria. Researchers then took ten volunteers and fed half of them a diet high in fat and low in fiber, and fed the other half a low-fat, high-fiber diet. By the end of ten days, the bacterial populations had begun to change but were still predominantly the same Bacteroides and Prevotella groups. This indicates that it’s possible to change the gut microbiota with diet, but it will take more than a short-term change to see any major difference.
Next steps will be to replicate these findings to confirm them and to take the studies further by looking at whether these gut types are associated with health or disease. It’s an exciting area of research, working out the details of what health advocates like ReNew Life founder Brenda Watson has said all along—your gut is the foundation of the health of the rest of your body. It all begins in the gut!