1. Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
2. Research Service, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53705, United States
3. Interdepartmental Graduate Program in Nutritional Sciences, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
4. Department of Cell and Regenerative Biology, University of Wisconsin—Madison, Madison, Wisconsin 53705, United States
5. Department of Pediatrics, University of Wisconsin—Madison, Madison, Wisconsin 53792, United States
6. Department of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States