Molecular and Cellular Biochemistry

, Volume 225, Issue 1–2, pp 109–119 | Cite as

Dietary n‐3 polyunsaturated fatty acids affect the development of renovascular hypertension in rats

  • D. Rousseau
  • C. Héliès‐Toussaint
  • D. Raederstorff
  • D. Moreau
  • A. Grynberg
Article

Abstract

The consequences of a dietary n‐3 PUFA supply was investigated on the blood pressure (BP) increase elicited by left renal artery stenosis in rats distributed in 3 groups (n = 8) fed for 8 weeks a semi‐purified diet either as control diet or enriched diets (docosahexaenoic acid, DHA, or eicosapentaenoic acid, EPA). The PUFA intake induced large alterations in heart and kidney phospholipid fatty acid profile, but did not influence body weight, cardiac hypertrophy, renal left atrophy and right hypertrophy. Within 4 weeks, BP raised from 120–180 ± 2 mm Hg in the control group, but only to 165 ± 3 mm Hg in the n‐3 PUFA groups. After stabilization of BP in the 3 groups, the rats received a short administration of increasing dose of perindopril. The lower dose (0.5 mg/kg) moderately decreased BP only in the control group. With higher doses (1, 5 and 10 mg/kg) BP was normalized in the 3 groups, with a higher amplitude of the BP lowering effect in the control group. A moderate n‐3 PUFA intake can contribute to prevent the development of peripheral hypertension in rats by a mechanism that may involve angiotensin converting enzyme.

hypertension heart PUFA nutrition prevention perindopril rat 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • D. Rousseau
    • 1
  • C. Héliès‐Toussaint
    • 1
  • D. Raederstorff
    • 2
  • D. Moreau
    • 3
  • A. Grynberg
    • 3
  1. 1.Faculté de PharmacieINRA NASAParisFrance
  2. 2.F. Hoffmann‐La RocheBaselSwitzerland
  3. 3.Faculté de MédecineLPPCEDijonFrance

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