Renal Biopsy and Pathological Examination
All patients stopped taking agents with antiplatelet/anticoagulation
activity 3 days before the renal biopsy. Patients with a high
risk of thrombosis were allowed to restart anticoagulant and/or
antiplatelet therapy at least 3 days after the renal biopsy,
whereas the remaining individuals restarted treatment at least
0.5–1 months after the renal biopsy. Renal biopsies were carried
out by two experienced nephrologists. No patients exhibited
gross hematuria after the operations. The diagnosis of DN or
NDRD was made by a single pathologist.