title: Renal scintigraphy and survival of indium-111-labelled platelets in patients with diabetic nephropathy.
abstract: Nine patients with overt diabetic nephropathy underwent renal scintigraphy and measurement of platelet survival time using indium-111-labelled platelets after treatment for six weeks with aspirin-dipyridamole (990 mg/225 mg/day) or placebo in a double-blind cross-over study. External scanning of the renal areas at 16 and 40 h post-injection showed no excess activity of indium-111 relative to background. Mean platelet survival was within the published normal range at 9.1 +/- 0.6 days and 7.6 +/- 1.4 days using linear and gamma function analyses respectively. Treatment with aspirin-dipyridamole was without effect. The results suggest that significant platelet deposition in renal blood vessels is not an important factor in the pathogenesis of diabetic nephropathy.
mesh_terms: D001241:Aspirin / Q000627:therapeutic use; D001786:Blood Glucose / Q000378:metabolism; D001792:Blood Platelets / Q000000981:diagnostic imaging* / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D003928:Diabetic Nephropathies / Q000097:blood / Q000000981:diagnostic imaging* / Q000188:drug therapy; D004176:Dipyridamole / Q000627:therapeutic use; D004311:Double-Blind Method; D006801:Humans; D007204:Indium; D007668:Kidney / Q000000981:diagnostic imaging*; D011868:Radioisotopes; D011877:Radionuclide Imaging
chemical_list: D001786:Blood Glucose; D011868:Radioisotopes; D007204:Indium; D004176:Dipyridamole; D001241:Aspirin