View clinical trials related to Serum 25(OH)D Concentration.
Filter by:The purpose of the study is to investigate in vivo whether a high-dose vitamin D3 oral bolus (2000 micrograms) produces marked vitamin D receptor target gene expression response and whether there is large inter-individual variation. These effects are compared to in vitro treatment of peripheral blood mononuclear cells from these subjects with 25(OH)D.
The purpose of the study is to investigate whether a high-dose vitamin D3 oral bolus (2000 micrograms) produces marked vitamin D receptor target gene expression response and whether there is large inter-individual variation.