1. Centre for Diabetes and Metabolic Medicine (C.M., G.A.H., M.D.T.), Institute of Cell and Molecular Science, Barts and The London, Queen Mary’s School of Medicine and Dentistry, University of London, Whitechapel, London E1 1BB, United Kingdom
2. Diabetes Research Laboratories (C.J.P., A.C.), Oxford Centre for Diabetes, Endocrinology and Churchill Hospital, Oxford OX3 7LJ, United Kingdom
3. Departments of Integrative Biosciences and Ophthalmology (H.M., T.R.S.), Oregon Health and Science University, Portland, Oregon 97201