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Fas-induced apoptosis is a feature of progressive diabetic nephropathy in transgenic (mRen-2)27 rats: attenuation with renin-angiotensin blockade. | LitMetric

AI Article Synopsis

Article Abstract

Background And Aim: Tubular atrophy is a major feature of most renal diseases and is closely associated with the loss of renal function. The present study sought to investigate whether Fas/FasL-induced tubular epithelial cell apoptosis was a feature of experimental diabetic nephropathy. The effects of renoprotective therapy with blockade of the renin-angiotensin (RAS) system were also examined.

Method: Six-week-old female Ren-2 rats were injected with streptozotocin and maintained diabetic for 12 weeks. Further groups of diabetic rats were treated with the angiotensin-converting enzyme inhibitor, perindopril, for 12 weeks.

Results: Widespread apoptosis, identified by using mediated Terminal dUTP nick-end labelling (TUNEL) staining was noted in the tubules of diabetic Ren-2 rats. These changes were associated with an increase in both Fas mRNA and Fas L (ligand) within the tubules (P < 0.01). Treatment of diabetic Ren-2 rats with perindopril (6 mg/kg per day) reduced the apoptosis to control levels and was associated with a reduction in Fas mRNA and Fas L protein (P < 0.05).

Conclusion: In conclusion, Fas/Fas L-induced tubular apoptosis is a feature of diabetic Ren-2 rats and is attenuated by the blockade of the RAS.

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Source
http://dx.doi.org/10.1111/j.1440-1797.2003.00227.xDOI Listing

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