Rehmannia Glutinosa Ameliorates the Progressive Renal Failure Induced by 5/6 Nephrectomy

J Ethnopharmacol. 2009 Feb 25;122(1):131-5. doi: 10.1016/j.jep.2008.12.015. Epub 2008 Dec 25.

Abstract

Aim of the study: Rehmannia glutinosa, the steamed root of the Scrophulariaceae family, has been widely used in Asian countries for the treatment of renal diseases. In this study, we evaluated the renoprotective effect of aqueous extract of Rehmannia glutinosa in progressive renal failure.

Materials and methods: The effects of Rehmannia glutinosa on renal function, 24-h proteinuria, and the expression of angiotensin II, angiotensin II type 1 (AT(1)) receptor, TGF-beta1, and type IV collagen in renal cortex were analyzed in progressive renal failure rats induced by 5/6 nephrectomy.

Results: Rehmannia glutinosa reduced the serum creatinine level, 24-h urinary protein excretion, and glomerulosclerosis, and it also inhibited the expression of angiotensin II, AT(1) receptor, TGF-beta1 and type IV collagen in the renal cortex.

Conclusions: These results suggest that the renoprotective effect of Rehmannia glutinosa might be mediated by suppressing the expression of angiotensin II and AT(1) receptor and by regulating TGF-beta1 and type IV collagen expression.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Albumins / metabolism
  • Angiotensin I / blood
  • Angiotensin I / metabolism
  • Angiotensin II / blood
  • Animals
  • Blood Urea Nitrogen
  • Collagen Type IV / metabolism
  • Creatinine / blood
  • Kidney / drug effects
  • Kidney / metabolism*
  • Kidney / pathology
  • Kidney / surgery
  • Lipids / blood
  • Male
  • Nephrectomy
  • Plant Extracts / pharmacology
  • Plant Extracts / therapeutic use*
  • Protective Agents / pharmacology
  • Protective Agents / therapeutic use*
  • RNA, Messenger / metabolism
  • Rats
  • Rats, Sprague-Dawley
  • Rehmannia*
  • Renal Insufficiency / drug therapy*
  • Renal Insufficiency / metabolism
  • Transforming Growth Factor beta1 / blood

Substances

  • Albumins
  • Collagen Type IV
  • Lipids
  • Plant Extracts
  • Protective Agents
  • RNA, Messenger
  • Transforming Growth Factor beta1
  • Angiotensin II
  • Angiotensin I
  • Creatinine