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Preventive Effects of Pectin Lyase-Modified Red Ginseng Extract on renal injury in db/db mice

홍삼가수분해추출물의 db/db 마우스에서 신장 손상 예방효과

  • Received : 2018.04.09
  • Accepted : 2018.07.25
  • Published : 2018.07.30

Abstract

Objectives : Diabetic nephropathy is one of the most significant chronic complications of diabetes. Advanced glycation end products (AGEs) have been implicated in the development of diabetic nephropathy. GS-E3D is an enzymatic modified red ginseng extract by pectin lyase and has an increased concentration of the ginsenoside Rd compared to an unmodified red ginseng extract. In this study, we evaluated the preventive effects of GS-E3D on renal dysfunction in the type 2 diabetic db/db mice. Methods : GS-E3D (100 or 250 mg/kg body weight per day) was given to db/db mice through oral gavage for 6 weeks. Body weight and blood glucose levels were examined. At the end of the experiment, albuminuria was measured. The renal tissues were collected for histological examination, and immunohistochemical staining was used to detect renal accumulation of AGEs and podocyte loss Results : In the db/db mice, severe hyperglycemia developed, and albuminuria was significantly increased. Diabetes induced markedly morphological alterations to the renal glomerular cells. AGE accumulations and podocyte loss were detected in renal glomeruli. No difference in blood glucose levels was noted between GS-E3D-treated and vehicletreated diabetic db/db mice. However, GS-E3D treatment significantly reduced albuminuria and AGE accumulations in diabetic mice. Moreover, the loss of podocytes was restored by GS-E3D treatment. Conclusions : GS-E3D might be beneficial for the treatment of diabetic nephropathy. The ability of GS-E3D on to attenuate albuminuria and podocyte dysfunction in the db/db mice may be mediated by the inhibition of AGE accumulation.

Keywords

References

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