New and improved insulin

Swapping out a hydrogen atom for an iodine atom in the glucose-controlling hormone insulin makes it much faster acting, according to scientists in Switzerland. Fundamentally, the presence of the iodine in a specific position allows the natural, inactive hexamer form of insulin to break apart into six active monomers with greater efficiency and so make them available to the body for carrying out their job of modulating glucose levels in the blood more immediately. The insulin analog might offer a more effective way to control diabetes mellitus than unmodified insulin for patient although clinical trials to test safety and efficacy are yet to be undertaken.