tokens: In addition to renal allografts with TG , we also examined grafts with acute rejection , recurrent glomerulonephritis , chronic allograft nephropathy and stable grafts (" protocol biopsies "). Native kidney specimens included a wide range of glomerulopathies as well as cases of thrombotic microangiopathy , malignant hypertension , acute interstitial nephritis , and acute tubular necrosis .