Obesity health risk cause 'found'

Scientists believe they may have uncovered a key reason why obese people have a raised risk of health complications such as type 2 diabetes. They blame a specific protein - pigment epithelium-derived factor (PEDF) - which is secreted by fat cells. The Australian and US research on mice suggests blocking some of PEDF's action may reverse some complications - raising hopes of new drug treatments. The study appears in the journal Cell Metabolism - BBC