Chinese scientists cured type 2 diabetes using islet cell transplantation at Shanghai Changzheng Hospital. Blood-to-islet cell transformation in July 2021 ended T2D in a 59-year-old. Published in Cell Discovery, reliance on oral medication stopped over a year. Islet cells, including glucagon, somatostatin, and β cells in islets of Langerhans, are crucial for insulin production and glucose absorption.