New research finds brain plays key role in diabetes care
A new study suggests that the brain could become an important focus in the treatment of type 1 diabetes. This breakthrough could lead to better ways to manage the disease, especially for people struggling with diabetic ketoacidosis (DKA), a serious and life-threatening complication.
The study, published in the Journal of Clinical Investigation, builds on research from over 10 years ago. Back then, scientists discovered that DKA could be treated with a hormone called leptin—even without insulin.
DKA happens when the body cannot produce insulin. As a result, it starts to break down fat for energy. This leads to a dangerous buildup of sugar and acids called ketones in the blood. Doctors usually treat DKA with insulin. But new evidence shows that the brain plays a key role in how DKA develops.
Researchers from the University of Washington found that when the body lacks insulin, the brain believes it is running out of fuel. This misunderstanding is partly due to low levels of leptin—a hormone made by fat cells. Leptin normally helps the brain manage hunger and energy use through an area called the hypothalamus.
According to Dr. Michael Schwartz, lead researcher and professor of medicine, raising leptin levels in the brain may help stop the dangerous chain reaction that leads to DKA. He believes that future treatments might not require daily insulin shots or constant blood sugar checks.
“If the brain can be convinced that fuel levels are okay, or if certain brain cells are stopped from signaling a crisis, then the body may not develop high blood sugar or DKA,” said Dr. Schwartz.
This idea challenges the long-standing belief that insulin shortage alone causes DKA. It shows that the brain’s response also plays a major role.
Researchers hope this discovery will lead to new treatments that make life easier for people with type 1 diabetes, offering a new path beyond daily insulin use.
