Studying Diabetic Kidney Disease in Kidney Biopsies

About two in five people who are undergoing a kidney biopsy have diabetes. Diabetes is a common finding in people with kidney disease, but little is known about the specific ways in which diabetes affects kidney function. The purpose of this study is to gather two groups of patients with diabetes who undergo a kidney biopsy in order to create a source of information with genetic, blood, and urine samples available, by which researchers can study how diabetes affects kidney function.