Development of GLP-1 receptor probes for imaging changes in beta cell mass, Functional molecular imaging of the pancreatic islet, Non-invasive Molecular Imaging of Cancer Growth and Metastasis Using MRI and a Novel Reporter Gene, Molecular Imaging of the pancreatic islet using dual-isotope SPECT/CT, Role of the prohormone convertases in pancreatic alpha cell function, Molecular and cellular mechanisms of the innate immune response in the development of type 1 diabetes