[Ameliorative effects on retinal disorder in diabetic SHRSP (stroke-prone spontaneously hypertensive rat)].
2002
The results of the EUCLID highlighted the importance of the renin-angiotensin system in the pathogenesis of diabetic retinopathy. We aimed to evaluate the effectiveness of candesartan cilexetil(TCV-116), a potent angiotensin II receptor antagonist, in ameliorating retinal disorders in stroke-prone spontaneously hypertensive rats(SHRSP) with storeptozotocin(STZ)-induced diabetes. Retinal VEGF mRNA expression was significantly higher and the latencies of oscillatory potentials were significantly elongated in STZ-treated SHRSP compared with a non-treated SHRSP group matched for age. Treatment with TCV-116(3 mg/kg) significantly diminished retinal VEGF mRNA expression and the latencies of oscillatory potentials, but had no effect on plasma glucose concentrations. These results suggest that TCV-116 is effective in preventing the development of diabetic retinopathy already in the early stages.
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