Sustainable Pulse - July 11th, 2018
A ground breaking new study from Australian experts has shown that so-called “Bt proteins”, produced by some GM crops, may not be as safe as previously assumed.
Any two cells that line the stomach are normally held tightly against each other to form a “tight junction”. This stops any bacteria, viruses or food particles from leaking out from the stomach into the tissues of the body. The study found that the rats fed the GM corn had gaps in their tight junctions. This is called “poor apposition”. On average, this was five times greater in rats fed the GM corn diet. Poor apposition should not occur in normal, healthy stomachs. Yet every stomach section seen in rats fed the GM diet had these gaps between a number of cells.
Dr. Judy Carman, one of the lead scientists involved in the study, said: “This means that there is a risk that eating GM maize could cause leakage of substances from the stomach and therefore increase the risk of developing allergies, or infections from the microbes in the food you eat or the water you drink.”
In addition, the lining of the stomach has microscopic pits in it. Cells in the pits produce mucus to protect the stomach from stomach acid. The bottom of each pit divides into two long, straight glands. These glands produce stomach acid to help digest food. While the researchers saw some dilated (i.e. swollen) glands in rats fed the GM diet and those fed the non-GM diet, the rats fed the non-GM diet had smaller swellings and the cells lining the glands looked normal. In contrast, the glands in the GM-fed group were much more swollen, they often contained debris or mucus, and the cells lining the glands were often abnormal.