Omega-3 polyunsaturated fatty acid supplementation reduces hypertension in TGR(mRen-2)27 rats

A P Jayasooriya, D P Begg, N Chen, M L L Mathai, Andrew J Sinclair, Jennifer Wilkinson-Berka, John D Wark, Harrison S Weisinger, R S S Weisinger

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)

Abstract

To establish the effect of dietary omega-3 PUFA on angiotensin II (ANG II)-mediated hypertension, male TGR (mRen-2)27 (Ren-2) rats (animals with high ANG II activity) were maintained on a diet either deficient or sufficient in omega-3 PUFA from conception. Half the animals on each diet were treated with the angiotensin-converting enzyme inhibitor, perindopril, from birth. Ren-2 rats fed the omega-3 PUFA deficient diet were significantly more hypertensive than those fed the omega-3 PUFA sufficient diet. Perindopril reduced the blood pressure of both omega-3 PUFA-deficient and omega-3 PUFA-sufficient diet-fed Ren-2 rats. Body weight, body fat and plasma leptin were reduced by perindopril treatment but not affected by omega-3 PUFA supply. Given that the elevated blood pressure of the Ren-2 rat is mediated by ANG II, the data suggest that omega-3 PUFA may reduce hypertension via the renin-angiotensin system.
Original languageEnglish
Pages (from-to)67 - 72
Number of pages6
JournalProstaglandins Leukotrienes and Essential Fatty Acids
Volume78
Publication statusPublished - 2008

Cite this