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Journal of Diabetes Research
Volume 2014 (2014), Article ID 363126, 6 pages
Research Article

Effects of Unilateral Nephrectomy on Renal Function in Male Spontaneously Diabetic Torii Fatty Rats: A Novel Obese Type 2 Diabetic Model

1Japan Tobacco Inc., Central Pharmaceutical Research Institute, Biological/Pharmacological Research Laboratories, 1-1 Murasaki-cho, Takatsuki, Osaka 569-1125, Japan
2Japan Tobacco Inc., Central Pharmaceutical Research Institute, Toxicology Research Laboratories, 23 Naganuki, Hadano, Kanagawa 257-0024, Japan

Received 23 June 2014; Accepted 7 July 2014; Published 10 August 2014

Academic Editor: Masami Shinohara

Copyright © 2014 Yoshiaki Katsuda et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The Spontaneously Diabetic Torii (SDT) fatty rat is a new model for obese type 2 diabetes. The aim of the present study was to investigate the effect of 1/2 nephrectomy (Nx) on renal function and morphology and on blood pressure in SDT fatty rats. Male SDT fatty rats underwent 1/2 Nx or a sham operation (Sham). Subsequently, animals were studied with respect to renal function and histological alterations. Induction of 1/2 Nx in SDT fatty rats led to functional and morphological damage to the remnant kidney and to hypertension, which are considered main characteristics of chronic kidney disease, at a younger age compared with the sham group. In conclusion, the SDT fatty rat is useful in investigations to elucidate the pathogenesis of human diabetic nephropathy and in new drug discovery.