1. Department of Biology University of Alabama at Birmingham Birmingham Alabama 35294 USA
2. Department of Nutrition Sciences University of Alabama at Birmingham Birmingham Alabama 35294 USA
3. Department of Biology and Nutrition Obesity Research Center University of Alabama at Birmingham Birmingham Alabama 35294 USA
4. Department of Biostatistics University of Alabama at Birmingham Birmingham Alabama 35294 USA
5. Almac Diagnostic Services Durham, North Carolina 27704 USA
6. Department of Nutrition Sciences and Nutrition Obesity Research Center University of Alabama at Birmingham Birmingham Alabama 35294 USA