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Retinal VEGF levels in BN and SD rats with STZ-induced diabetes. The retinas were dissected from diabetic BN and SD rats at 3 days, and 1, 2, 4, 8, and 16 weeks following the STZ injection. The same amounts of soluble proteins were blotted with an antibody specific to VEGF. The same filter was stripped and re-blotted with the anti-β-actin antibody to normalize VEGF levels. The results are from pooled retinas of three animals at each time point.
