Fig. 2
Serum profiles of lean and obese mice following supplementation with varied amounts of Vitamin D 3 . Serum was collected following 24 weeks of either low, standard or high vitamin D3 supplementation, and analyzed for serum 1,25-(OH)2 vitamin D3 a, intact PTH b and calcium c concentration using ELISA or colorimetric assay. Correlative analysis was further performed between serum intact PTH and serum 1,25-(OH)2 vitamin D d. Different letters denote a significant difference between lean and obese (****p < 0.0001)