Norton Healthcare, Norton Children’s to become a hub for isolating high-quality human islet cells for diabetes research and transplant Balamurugan N. Appakalai, Ph.D.-1 Balamurugan N. Appakalai, Ph.D. is leading research around islet cell transplants. Dr. Bala, widely considered one of the most skilled islet isolation specialists in the world, is transitioning his team and research from Nationwide Children’s in Ohio to Louisville. Balamurugan N. Appakalai, Ph.D.-2 Balamurugan N. Appakalai joins