The Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels

Comparisons of the Effect of Inactive and Active Vitamin D on Serum Sclerostin/dickkopf1 Levels

The purpose of this study is to compare the effect of inactive and active vitamin D on serum sclerostin and dickkopf1 levels.

Inclusion Criteria:

• Healthy male volunteer older than 20 years

Exclusion Criteria:

• Subjects with bone and mineral metabolism disorders
• Subjects with kidney or liver diseases
• Subjects with uncorrectable hypercalcemia or hypocalcemia
• Subjects with chronic gastrointestinal disorders or malabsorption
• Subjects taking medication related to bone loss