People with type 2 diabetes have insulin resistance, which means the body cannot use insulin properly to help glucose get into the cells. In people with type 2 diabetes, insulin doesn’t work well in muscle, fat, and other tissues, so your pancreas (the organ that makes insulin) starts to put out a lot more of it to try and compensate. "This results in high insulin levels in the body,” says Fernando Ovalle, MD, director of the multidisciplinary diabetes clinic at the University of Alabama in Birmingham. This insulin level sends signals to the brain that your body is hungry.
Scientists are trying to figure out how to transplant islet cells and then protect them from the patient’s immune system so that long-term immunosuppressive medications aren’t required. Micro encapsulation is an approach scientists are testing to find out if a special coating to the transplanted islets can help the patient avoid rejection of those islets. These coatings let in nutrients to nourish the cells but prevent your body’s immune system from attacking them.
Family or personal history. Your risk increases if you have prediabetes — a precursor to type 2 diabetes — or if a close family member, such as a parent or sibling, has type 2 diabetes. You're also at greater risk if you had gestational diabetes during a previous pregnancy, if you delivered a very large baby or if you had an unexplained stillbirth.