Blood protein may reveal hidden insulin problems

This study looked at whether a protein called IRAP, found in the blood, can be used as a marker for insulin sensitivity (how well the body uses insulin). Researchers measured IRAP levels in 21 healthy adults during a special test called a hyperinsulinemic-euglycemic clamp, which is the gold standard for measuring insulin sensitivity. The goal was to see if IRAP levels match the results of the clamp test, which could lead to a simpler blood test for insulin resistance in the future.