Oxidative stress and membrane fluidity of red blood cells in hypertensive and normotensive men: an electron spin resonance investigation

International Heart Journal
Kazushi Tsuda

Abstract

Recent evidence indicates that oxidative stress might actively participate in the pathophysiology of hypertension, atherosclerosis, and other cardiovascular diseases. The purpose of the present study was to assess the possible link between oxidative stress and membrane fluidity in hypertensive and normotensive men. We measured the membrane fluidity (a reciprocal value of membrane microviscosity) of red blood cells (RBCs) in hypertensive and normotensive men using an electron spin resonance (ESR) and spin-labeling method. Membrane fluidity of RBCs was decreased in hypertensive men compared with normotensive men. The levels of plasma 8-Iso-prostaglandin F2alpha (8-Iso-PG F2alpha : an index of oxidative stress) were significantly higher in hypertensive men than in normotensive men. In contrast, plasma nitric oxide (NO)-metabolite levels were significantly lower in hypertensive men than in normotensive men. In the overall analysis of hypertensive and normotensive men, plasma 8-Iso-PG F2alpha levels were inversely correlated with plasma NO-metabolites. Furthermore, the reduced membrane fluidity of RBCs was associated with increased plasma 8-Iso-PG F2alpha and decreased plasma NO-metabolite levels. In a multivariate regression analys...Continue Reading

References

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Citations

May 11, 2013·Clinical and Experimental Hypertension : CHE·Ramón RodrigoLeonardo Vergara
Feb 18, 2014·Atherosclerosis·Tetsuro MiyazakiHiroyuki Daida
Jul 25, 2015·Redox Report : Communications in Free Radical Research·Adolfo Daniel Rodríguez-CarrizalezAlejandra Guillermina Miranda-Díaz
Dec 23, 2016·Evidence-based Complementary and Alternative Medicine : ECAM·Kanchana Kengkoom, Sumate Ampawong
Dec 7, 2018·Frontiers in Physiology·Robert J AsaroPedro Cabrales
Jun 12, 2019·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·D M PlotnikovO I Aliev
Jan 2, 2021·Membranes·Catarina Pereira-LeiteSalette Reis

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