Digestion

These Caterpillars Chow Down on Plastic Bags

Remember The Very Hungry Caterpillar? He may have some serious real-life competition because scientists have discovered that a common caterpillar can eat and digest plastic. They published their findings in the journal Current Biology.

The wax worm is the larval form of the parasitic wax moth (Galleria mellonella), also known as the honeycomb moth. Adult moths chew their way into beehives, then lay their eggs, which will gorge themselves on honeycomb once they hatch. Because bees didn’t already have enough to deal with.

César Hernández/CSIC

Federica Bertocchini is a research fellow at the Institute of Biomedicine and Biotechnology of Cantabria in Spain. In her free time, she’s an amateur beekeeper. One day, she picked handfuls of yellow wax worms out of her hives and tossed them into plastic bags, destined for the trash. But a few hours later, the bags were riddled with holes. The prisoners had made a wiggly break for it.

Bertocchini was intrigued. She and her colleagues rounded up hundreds of wax worms and a bunch of shopping bags and put them…

Gastric bypass controls diabetes long term better than other methods

gastric bypass
STOMACH SURGERY Gastric bypass surgery reduces the size of the stomach and shortens the digestive path for food. While performed for weight loss, the procedure may also bring long-term remission of diabetes.

People who undergo gastric bypass surgery are more likely to experience a remission of their diabetes than patients who receive a gastric sleeve or intensive management of diet and exercise, according to a new study. Bypass surgery had already shown better results for diabetes than other weight-loss methods in the short term, but the new research followed patients for five years.

“We knew that surgery had a powerful effect on diabetes,” says Philip Schauer of the Bariatric & Metabolic Institute at the Cleveland Clinic. “What this study says is that the effect of surgery is durable.” The results were published online February 15 in the New England Journal of Medicine.

The study followed 134 people with type 2 diabetes for five years in a head-to-head comparison of weight-loss methods. At the end of that time, two of 38 patients who only followed intensive diet and exercise plans were no longer in need of insulin to manage blood sugar levels. For comparison, 11 of 47 patients who had a gastric sleeve, which reduces the size of the stomach, and 14 of 49 who underwent gastric bypass, a procedure that…