Astronauts might one day grow and eat genetically modified plants to ward off disease associated with long spaceflights. Researchers at the College of Engineering have developed a transgenic, or genetically modified, lettuce producing a drug to protect against bone density loss in microgravity. Kevin Yates, a graduate student working with Professor Karen McDonald and Adjunct Professor Somen Nandi at the UC Davis Department of Chemical Engineering, developed the lettuce that expresses a fusion protein combining PTH with part of a human antibody protein. The fusion protein is designed to be stable in the bloodstream and to allow astronauts to potentially purify the drug from plant extracts, Nandi said.
