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Clinical Studies


  • Evaluate the Effect of 1,25-Dihydroxyvitamin D3 Treatment on Insulin Secretion and Muscle Strength in Pre-diabetic Persons (KUMAR2) Rochester, Minn.

    The purpose of this study is to assess the effects of 1,25(OH)2D3 on insulin secretion by the pancreas and glucose utilization by skeletal muscle, as well as to determine the effects of 1,25(OH)2D3 on muscle strength in pre-diabetic subjects.

  • Fractures and Bone Disease in Living Kidney Donors Rochester, Minn.

    The purpose of this study is to to determine whether or not prior living kidney donors have an increased risk of bone fractures. The study will also determine bone structure and health in prior living donors as compared to matched controls.  





    We will determine if living kidney donors are at increased risk of bone disease and fractures following kidney donation. This information will be valuable in informing future kidney donors of the risks of donation and in devising treatments, such as administration of vitamin D analogs like calcitriol, to prevent such complications.

Closed for Enrollment