Figure 1. Comparison of capillary
degeneration among different rat strains. Diabetes-induced degeneration
of retinal capillaries (A) and pericyte loss (B) occurred
more slowly in Sprague Dawley rats than in Lewis or Wistar rats
diabetic (Diab) for eight months or in age-matched nondiabetic (ND)
controls. Both lesions were counted in a masked fashion on
trypsin-digested microvessel preparations. All groups contained more
than eight animals. Mean±SEM.